5 Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
7 *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites
8 from RFC4279, RFC4785, RFC5487, RFC5489.
10 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the
11 original RSA_PSK patch.
14 *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay
15 era flag was never set throughout the codebase (only read). Also removed
16 SSL3_FLAGS_POP_BUFFER which was only used if
17 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set.
20 *) Changed the default name options in the "ca", "crl", "req" and "x509"
21 to be "oneline" instead of "compat".
24 *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're
25 not aware of clients that still exhibit this bug, and the workaround
26 hasn't been working properly for a while.
29 *) The return type of BIO_number_read() and BIO_number_written() as well as
30 the corresponding num_read and num_write members in the BIO structure has
31 changed from unsigned long to uint64_t. On platforms where an unsigned
32 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is
36 *) Given the pervasive nature of TLS extensions it is inadvisable to run
37 OpenSSL without support for them. It also means that maintaining
38 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
39 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed.
42 *) Removed support for the two export grade static DH ciphersuites
43 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites
44 were newly added (along with a number of other static DH ciphersuites) to
45 1.0.2. However the two export ones have *never* worked since they were
46 introduced. It seems strange in any case to be adding new export
47 ciphersuites, and given "logjam" it also does not seem correct to fix them.
50 *) Version negotiation has been rewritten. In particular SSLv23_method(),
51 SSLv23_client_method() and SSLv23_server_method() have been deprecated,
52 and turned into macros which simply call the new preferred function names
53 TLS_method(), TLS_client_method() and TLS_server_method(). All new code
54 should use the new names instead. Also as part of this change the ssl23.h
55 header file has been removed.
58 *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This
59 code and the associated standard is no longer considered fit-for-purpose.
62 *) RT2547 was closed. When generating a private key, try to make the
63 output file readable only by the owner. This behavior change might
64 be noticeable when interacting with other software.
66 *) Added HTTP GET support to the ocsp command.
69 *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
72 *) Added support for TLS extended master secret from
73 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an
74 initial patch which was a great help during development.
77 *) All libssl internal structures have been removed from the public header
78 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is
79 now redundant). Users should not attempt to access internal structures
80 directly. Instead they should use the provided API functions.
83 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
84 Access to deprecated functions can be re-enabled by running config with
85 "enable-deprecated". In addition applications wishing to use deprecated
86 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
87 will, by default, disable some transitive includes that previously existed
88 in the header files (e.g. ec.h will no longer, by default, include bn.h)
91 *) Added support for OCB mode. OpenSSL has been granted a patent license
92 compatible with the OpenSSL license for use of OCB. Details are available
93 at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
94 for OCB can be removed by calling config with no-ocb.
97 *) SSLv2 support has been removed. It still supports receiving a SSLv2
98 compatible client hello.
101 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
102 done while fixing the error code for the key-too-small case.
103 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
105 *) CA.sh has been removmed; use CA.pl instead.
108 *) Removed old DES API.
111 *) Remove various unsupported platforms:
117 Sinix/ReliantUNIX RM400
122 16-bit platforms such as WIN16
125 *) Clean up OPENSSL_NO_xxx #define's
126 Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF
127 Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx
128 OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC
129 OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160
130 OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO
131 Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY
132 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP
133 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK
134 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY
135 Remove MS_STATIC; it's a relic from platforms <32 bits.
138 *) Cleaned up dead code
139 Remove all but one '#ifdef undef' which is to be looked at.
142 *) Clean up calling of xxx_free routines.
143 Just like free(), fix most of the xxx_free routines to accept
144 NULL. Remove the non-null checks from callers. Save much code.
147 *) Add secure heap for storage of private keys (when possible).
148 Add BIO_s_secmem(), CBIGNUM, etc.
149 Contributed by Akamai Technologies under our Corporate CLA.
152 *) Experimental support for a new, fast, unbiased prime candidate generator,
153 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
154 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
156 *) New output format NSS in the sess_id command line tool. This allows
157 exporting the session id and the master key in NSS keylog format.
158 [Martin Kaiser <martin@kaiser.cx>]
160 *) Harmonize version and its documentation. -f flag is used to display
162 [mancha <mancha1@zoho.com>]
164 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
165 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue.
166 [mancha <mancha1@zoho.com>]
168 *) Fix some double frees. These are not thought to be exploitable.
169 [mancha <mancha1@zoho.com>]
171 *) A missing bounds check in the handling of the TLS heartbeat extension
172 can be used to reveal up to 64k of memory to a connected client or
175 Thanks for Neel Mehta of Google Security for discovering this bug and to
176 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
177 preparing the fix (CVE-2014-0160)
178 [Adam Langley, Bodo Moeller]
180 *) Fix for the attack described in the paper "Recovering OpenSSL
181 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
182 by Yuval Yarom and Naomi Benger. Details can be obtained from:
183 http://eprint.iacr.org/2014/140
185 Thanks to Yuval Yarom and Naomi Benger for discovering this
186 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
187 [Yuval Yarom and Naomi Benger]
189 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
190 this fixes a limitation in previous versions of OpenSSL.
193 *) Experimental encrypt-then-mac support.
195 Experimental support for encrypt then mac from
196 draft-gutmann-tls-encrypt-then-mac-02.txt
198 To enable it set the appropriate extension number (0x42 for the test
199 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
201 For non-compliant peers (i.e. just about everything) this should have no
204 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
208 *) Add EVP support for key wrapping algorithms, to avoid problems with
209 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
210 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
211 algorithms and include tests cases.
214 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
218 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
219 MGF1 digest and OAEP label.
222 *) Make openssl verify return errors.
223 [Chris Palmer <palmer@google.com> and Ben Laurie]
225 *) New function ASN1_TIME_diff to calculate the difference between two
226 ASN1_TIME structures or one structure and the current time.
229 *) Update fips_test_suite to support multiple command line options. New
230 test to induce all self test errors in sequence and check expected
234 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
235 sign or verify all in one operation.
238 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
239 test programs and fips_test_suite. Includes functionality to parse
240 the minimal script output of fipsalgest.pl directly.
243 *) Add authorisation parameter to FIPS_module_mode_set().
246 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
249 *) Use separate DRBG fields for internal and external flags. New function
250 FIPS_drbg_health_check() to perform on demand health checking. Add
251 generation tests to fips_test_suite with reduced health check interval to
252 demonstrate periodic health checking. Add "nodh" option to
253 fips_test_suite to skip very slow DH test.
256 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
260 *) More extensive health check for DRBG checking many more failure modes.
261 New function FIPS_selftest_drbg_all() to handle every possible DRBG
262 combination: call this in fips_test_suite.
265 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
266 and POST to handle Dual EC cases.
269 *) Add support for canonical generation of DSA parameter 'g'. See
272 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
273 POST to handle HMAC cases.
276 *) Add functions FIPS_module_version() and FIPS_module_version_text()
277 to return numerical and string versions of the FIPS module number.
280 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
281 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
282 outside the validated module in the FIPS capable OpenSSL.
285 *) Minor change to DRBG entropy callback semantics. In some cases
286 there is no multiple of the block length between min_len and
287 max_len. Allow the callback to return more than max_len bytes
288 of entropy but discard any extra: it is the callback's responsibility
289 to ensure that the extra data discarded does not impact the
290 requested amount of entropy.
293 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
294 information in FIPS186-3, SP800-57 and SP800-131A.
297 *) CCM support via EVP. Interface is very similar to GCM case except we
298 must supply all data in one chunk (i.e. no update, final) and the
299 message length must be supplied if AAD is used. Add algorithm test
303 *) Initial version of POST overhaul. Add POST callback to allow the status
304 of POST to be monitored and/or failures induced. Modify fips_test_suite
305 to use callback. Always run all selftests even if one fails.
308 *) XTS support including algorithm test driver in the fips_gcmtest program.
309 Note: this does increase the maximum key length from 32 to 64 bytes but
310 there should be no binary compatibility issues as existing applications
311 will never use XTS mode.
314 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
315 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
316 performs algorithm blocking for unapproved PRNG types. Also do not
317 set PRNG type in FIPS_mode_set(): leave this to the application.
318 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
319 the standard OpenSSL PRNG: set additional data to a date time vector.
322 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
323 This shouldn't present any incompatibility problems because applications
324 shouldn't be using these directly and any that are will need to rethink
325 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
328 *) Extensive self tests and health checking required by SP800-90 DRBG.
329 Remove strength parameter from FIPS_drbg_instantiate and always
330 instantiate at maximum supported strength.
333 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
336 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
339 *) New function DH_compute_key_padded() to compute a DH key and pad with
340 leading zeroes if needed: this complies with SP800-56A et al.
343 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
344 anything, incomplete, subject to change and largely untested at present.
347 *) Modify fipscanisteronly build option to only build the necessary object
348 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
351 *) Add experimental option FIPSSYMS to give all symbols in
352 fipscanister.o and FIPS or fips prefix. This will avoid
353 conflicts with future versions of OpenSSL. Add perl script
354 util/fipsas.pl to preprocess assembly language source files
355 and rename any affected symbols.
358 *) Add selftest checks and algorithm block of non-fips algorithms in
359 FIPS mode. Remove DES2 from selftests.
362 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
363 return internal method without any ENGINE dependencies. Add new
364 tiny fips sign and verify functions.
367 *) New build option no-ec2m to disable characteristic 2 code.
370 *) New build option "fipscanisteronly". This only builds fipscanister.o
371 and (currently) associated fips utilities. Uses the file Makefile.fips
372 instead of Makefile.org as the prototype.
375 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
376 Update fips_gcmtest to use IV generator.
379 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
380 setting output buffer to NULL. The *Final function must be
381 called although it will not retrieve any additional data. The tag
382 can be set or retrieved with a ctrl. The IV length is by default 12
383 bytes (96 bits) but can be set to an alternative value. If the IV
384 length exceeds the maximum IV length (currently 16 bytes) it cannot be
388 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
389 underlying do_cipher function handles all cipher semantics itself
390 including padding and finalisation. This is useful if (for example)
391 an ENGINE cipher handles block padding itself. The behaviour of
392 do_cipher is subtly changed if this flag is set: the return value
393 is the number of characters written to the output buffer (zero is
394 no longer an error code) or a negative error code. Also if the
395 input buffer is NULL and length 0 finalisation should be performed.
398 *) If a candidate issuer certificate is already part of the constructed
399 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
402 *) Improve forward-security support: add functions
404 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
405 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
407 for use by SSL/TLS servers; the callback function will be called whenever a
408 new session is created, and gets to decide whether the session may be
409 cached to make it resumable (return 0) or not (return 1). (As by the
410 SSL/TLS protocol specifications, the session_id sent by the server will be
411 empty to indicate that the session is not resumable; also, the server will
412 not generate RFC 4507 (RFC 5077) session tickets.)
414 A simple reasonable callback implementation is to return is_forward_secure.
415 This parameter will be set to 1 or 0 depending on the ciphersuite selected
416 by the SSL/TLS server library, indicating whether it can provide forward
418 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
420 *) New -verify_name option in command line utilities to set verification
424 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
425 Add CMAC pkey methods.
428 *) Experimental renegotiation in s_server -www mode. If the client
429 browses /reneg connection is renegotiated. If /renegcert it is
430 renegotiated requesting a certificate.
433 *) Add an "external" session cache for debugging purposes to s_server. This
434 should help trace issues which normally are only apparent in deployed
435 multi-process servers.
438 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
439 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
440 BIO_set_cipher() and some obscure PEM functions were changed so they
441 can now return an error. The RAND changes required a change to the
442 RAND_METHOD structure.
445 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
446 a gcc attribute to warn if the result of a function is ignored. This
447 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
448 whose return value is often ignored.
451 Changes between 1.0.2c and 1.0.2d [xx XXX xxxx]
453 *) Alternate chains certificate forgery
455 During certificate verfification, OpenSSL will attempt to find an
456 alternative certificate chain if the first attempt to build such a chain
457 fails. An error in the implementation of this logic can mean that an
458 attacker could cause certain checks on untrusted certificates to be
459 bypassed, such as the CA flag, enabling them to use a valid leaf
460 certificate to act as a CA and "issue" an invalid certificate.
462 This issue was reported to OpenSSL by Adam Langley/David Benjamin
466 Changes between 1.0.2b and 1.0.2c [12 Jun 2015]
468 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
469 incompatibility in the handling of HMAC. The previous ABI has now been
473 Changes between 1.0.2a and 1.0.2b [11 Jun 2015]
475 *) Malformed ECParameters causes infinite loop
477 When processing an ECParameters structure OpenSSL enters an infinite loop
478 if the curve specified is over a specially malformed binary polynomial
481 This can be used to perform denial of service against any
482 system which processes public keys, certificate requests or
483 certificates. This includes TLS clients and TLS servers with
484 client authentication enabled.
486 This issue was reported to OpenSSL by Joseph Barr-Pixton.
490 *) Exploitable out-of-bounds read in X509_cmp_time
492 X509_cmp_time does not properly check the length of the ASN1_TIME
493 string and can read a few bytes out of bounds. In addition,
494 X509_cmp_time accepts an arbitrary number of fractional seconds in the
497 An attacker can use this to craft malformed certificates and CRLs of
498 various sizes and potentially cause a segmentation fault, resulting in
499 a DoS on applications that verify certificates or CRLs. TLS clients
500 that verify CRLs are affected. TLS clients and servers with client
501 authentication enabled may be affected if they use custom verification
504 This issue was reported to OpenSSL by Robert Swiecki (Google), and
505 independently by Hanno Böck.
509 *) PKCS7 crash with missing EnvelopedContent
511 The PKCS#7 parsing code does not handle missing inner EncryptedContent
512 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
513 with missing content and trigger a NULL pointer dereference on parsing.
515 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
516 structures from untrusted sources are affected. OpenSSL clients and
517 servers are not affected.
519 This issue was reported to OpenSSL by Michal Zalewski (Google).
523 *) CMS verify infinite loop with unknown hash function
525 When verifying a signedData message the CMS code can enter an infinite loop
526 if presented with an unknown hash function OID. This can be used to perform
527 denial of service against any system which verifies signedData messages using
529 This issue was reported to OpenSSL by Johannes Bauer.
533 *) Race condition handling NewSessionTicket
535 If a NewSessionTicket is received by a multi-threaded client when attempting to
536 reuse a previous ticket then a race condition can occur potentially leading to
537 a double free of the ticket data.
541 *) Only support 256-bit or stronger elliptic curves with the
542 'ecdh_auto' setting (server) or by default (client). Of supported
543 curves, prefer P-256 (both).
546 Changes between 1.0.2 and 1.0.2a [19 Mar 2015]
548 *) ClientHello sigalgs DoS fix
550 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an
551 invalid signature algorithms extension a NULL pointer dereference will
552 occur. This can be exploited in a DoS attack against the server.
554 This issue was was reported to OpenSSL by David Ramos of Stanford
557 [Stephen Henson and Matt Caswell]
559 *) Multiblock corrupted pointer fix
561 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
562 feature only applies on 64 bit x86 architecture platforms that support AES
563 NI instructions. A defect in the implementation of "multiblock" can cause
564 OpenSSL's internal write buffer to become incorrectly set to NULL when
565 using non-blocking IO. Typically, when the user application is using a
566 socket BIO for writing, this will only result in a failed connection.
567 However if some other BIO is used then it is likely that a segmentation
568 fault will be triggered, thus enabling a potential DoS attack.
570 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller.
574 *) Segmentation fault in DTLSv1_listen fix
576 The DTLSv1_listen function is intended to be stateless and processes the
577 initial ClientHello from many peers. It is common for user code to loop
578 over the call to DTLSv1_listen until a valid ClientHello is received with
579 an associated cookie. A defect in the implementation of DTLSv1_listen means
580 that state is preserved in the SSL object from one invocation to the next
581 that can lead to a segmentation fault. Errors processing the initial
582 ClientHello can trigger this scenario. An example of such an error could be
583 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
586 This issue was reported to OpenSSL by Per Allansson.
590 *) Segmentation fault in ASN1_TYPE_cmp fix
592 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
593 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
594 certificate signature algorithm consistency this can be used to crash any
595 certificate verification operation and exploited in a DoS attack. Any
596 application which performs certificate verification is vulnerable including
597 OpenSSL clients and servers which enable client authentication.
601 *) Segmentation fault for invalid PSS parameters fix
603 The signature verification routines will crash with a NULL pointer
604 dereference if presented with an ASN.1 signature using the RSA PSS
605 algorithm and invalid parameters. Since these routines are used to verify
606 certificate signature algorithms this can be used to crash any
607 certificate verification operation and exploited in a DoS attack. Any
608 application which performs certificate verification is vulnerable including
609 OpenSSL clients and servers which enable client authentication.
611 This issue was was reported to OpenSSL by Brian Carpenter.
615 *) ASN.1 structure reuse memory corruption fix
617 Reusing a structure in ASN.1 parsing may allow an attacker to cause
618 memory corruption via an invalid write. Such reuse is and has been
619 strongly discouraged and is believed to be rare.
621 Applications that parse structures containing CHOICE or ANY DEFINED BY
622 components may be affected. Certificate parsing (d2i_X509 and related
623 functions) are however not affected. OpenSSL clients and servers are
628 *) PKCS7 NULL pointer dereferences fix
630 The PKCS#7 parsing code does not handle missing outer ContentInfo
631 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
632 missing content and trigger a NULL pointer dereference on parsing.
634 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
635 otherwise parse PKCS#7 structures from untrusted sources are
636 affected. OpenSSL clients and servers are not affected.
638 This issue was reported to OpenSSL by Michal Zalewski (Google).
642 *) DoS via reachable assert in SSLv2 servers fix
644 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
645 servers that both support SSLv2 and enable export cipher suites by sending
646 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
648 This issue was discovered by Sean Burford (Google) and Emilia Käsper
649 (OpenSSL development team).
653 *) Empty CKE with client auth and DHE fix
655 If client auth is used then a server can seg fault in the event of a DHE
656 ciphersuite being selected and a zero length ClientKeyExchange message
657 being sent by the client. This could be exploited in a DoS attack.
661 *) Handshake with unseeded PRNG fix
663 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake
664 with an unseeded PRNG. The conditions are:
665 - The client is on a platform where the PRNG has not been seeded
666 automatically, and the user has not seeded manually
667 - A protocol specific client method version has been used (i.e. not
668 SSL_client_methodv23)
669 - A ciphersuite is used that does not require additional random data from
670 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA).
672 If the handshake succeeds then the client random that has been used will
673 have been generated from a PRNG with insufficient entropy and therefore the
674 output may be predictable.
676 For example using the following command with an unseeded openssl will
677 succeed on an unpatched platform:
679 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA
683 *) Use After Free following d2i_ECPrivatekey error fix
685 A malformed EC private key file consumed via the d2i_ECPrivateKey function
686 could cause a use after free condition. This, in turn, could cause a double
687 free in several private key parsing functions (such as d2i_PrivateKey
688 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
689 for applications that receive EC private keys from untrusted
690 sources. This scenario is considered rare.
692 This issue was discovered by the BoringSSL project and fixed in their
697 *) X509_to_X509_REQ NULL pointer deref fix
699 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
700 the certificate key is invalid. This function is rarely used in practice.
702 This issue was discovered by Brian Carpenter.
706 *) Removed the export ciphers from the DEFAULT ciphers
709 Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
711 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
712 ARMv5 through ARMv8, as opposite to "locking" it to single one.
713 So far those who have to target multiple plaforms would compromise
714 and argue that binary targeting say ARMv5 would still execute on
715 ARMv8. "Universal" build resolves this compromise by providing
716 near-optimal performance even on newer platforms.
719 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
720 (other platforms pending).
721 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
723 *) Add support for the SignedCertificateTimestampList certificate and
724 OCSP response extensions from RFC6962.
727 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
728 for corner cases. (Certain input points at infinity could lead to
729 bogus results, with non-infinity inputs mapped to infinity too.)
732 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
733 This covers AES, SHA256/512 and GHASH. "Initial" means that most
734 common cases are optimized and there still is room for further
735 improvements. Vector Permutation AES for Altivec is also added.
738 *) Add support for little-endian ppc64 Linux target.
739 [Marcelo Cerri (IBM)]
741 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
742 SHA1, SHA256 and GHASH. "Initial" means that most common cases
743 are optimized and there still is room for further improvements.
744 Both 32- and 64-bit modes are supported.
745 [Andy Polyakov, Ard Biesheuvel (Linaro)]
747 *) Improved ARMv7 NEON support.
750 *) Support for SPARC Architecture 2011 crypto extensions, first
751 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
752 SHA256/512, MD5, GHASH and modular exponentiation.
753 [Andy Polyakov, David Miller]
755 *) Accelerated modular exponentiation for Intel processors, a.k.a.
757 [Shay Gueron & Vlad Krasnov (Intel Corp)]
759 *) Support for new and upcoming Intel processors, including AVX2,
760 BMI and SHA ISA extensions. This includes additional "stitched"
761 implementations, AESNI-SHA256 and GCM, and multi-buffer support
764 This work was sponsored by Intel Corp.
767 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
768 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
769 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
772 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
773 this fixes a limiation in previous versions of OpenSSL.
776 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
777 MGF1 digest and OAEP label.
780 *) Add EVP support for key wrapping algorithms, to avoid problems with
781 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
782 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
783 algorithms and include tests cases.
786 *) Add functions to allocate and set the fields of an ECDSA_METHOD
788 [Douglas E. Engert, Steve Henson]
790 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
791 difference in days and seconds between two tm or ASN1_TIME structures.
794 *) Add -rev test option to s_server to just reverse order of characters
795 received by client and send back to server. Also prints an abbreviated
796 summary of the connection parameters.
799 *) New option -brief for s_client and s_server to print out a brief summary
800 of connection parameters.
803 *) Add callbacks for arbitrary TLS extensions.
804 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
806 *) New option -crl_download in several openssl utilities to download CRLs
807 from CRLDP extension in certificates.
810 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
813 *) New function X509_CRL_diff to generate a delta CRL from the difference
814 of two full CRLs. Add support to "crl" utility.
817 *) New functions to set lookup_crls function and to retrieve
818 X509_STORE from X509_STORE_CTX.
821 *) Print out deprecated issuer and subject unique ID fields in
825 *) Extend OCSP I/O functions so they can be used for simple general purpose
826 HTTP as well as OCSP. New wrapper function which can be used to download
827 CRLs using the OCSP API.
830 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
833 *) SSL_CONF* functions. These provide a common framework for application
834 configuration using configuration files or command lines.
837 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
838 message callback and prints the results. Needs compile time option
839 "enable-ssl-trace". New options to s_client and s_server to enable
843 *) New ctrl and macro to retrieve supported points extensions.
844 Print out extension in s_server and s_client.
847 *) New functions to retrieve certificate signature and signature
851 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
855 *) New Suite B modes for TLS code. These use and enforce the requirements
856 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
857 only use Suite B curves. The Suite B modes can be set by using the
858 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
861 *) New chain verification flags for Suite B levels of security. Check
862 algorithms are acceptable when flags are set in X509_verify_cert.
865 *) Make tls1_check_chain return a set of flags indicating checks passed
866 by a certificate chain. Add additional tests to handle client
867 certificates: checks for matching certificate type and issuer name
871 *) If an attempt is made to use a signature algorithm not in the peer
872 preference list abort the handshake. If client has no suitable
873 signature algorithms in response to a certificate request do not
877 *) If server EC tmp key is not in client preference list abort handshake.
880 *) Add support for certificate stores in CERT structure. This makes it
881 possible to have different stores per SSL structure or one store in
882 the parent SSL_CTX. Include distint stores for certificate chain
883 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
884 to build and store a certificate chain in CERT structure: returing
885 an error if the chain cannot be built: this will allow applications
886 to test if a chain is correctly configured.
888 Note: if the CERT based stores are not set then the parent SSL_CTX
889 store is used to retain compatibility with existing behaviour.
893 *) New function ssl_set_client_disabled to set a ciphersuite disabled
894 mask based on the current session, check mask when sending client
895 hello and checking the requested ciphersuite.
898 *) New ctrls to retrieve and set certificate types in a certificate
899 request message. Print out received values in s_client. If certificate
900 types is not set with custom values set sensible values based on
901 supported signature algorithms.
904 *) Support for distinct client and server supported signature algorithms.
907 *) Add certificate callback. If set this is called whenever a certificate
908 is required by client or server. An application can decide which
909 certificate chain to present based on arbitrary criteria: for example
910 supported signature algorithms. Add very simple example to s_server.
911 This fixes many of the problems and restrictions of the existing client
912 certificate callback: for example you can now clear an existing
913 certificate and specify the whole chain.
916 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
917 the certificate can be used for (if anything). Set valid_flags field
918 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
919 to have similar checks in it.
921 Add new "cert_flags" field to CERT structure and include a "strict mode".
922 This enforces some TLS certificate requirements (such as only permitting
923 certificate signature algorithms contained in the supported algorithms
924 extension) which some implementations ignore: this option should be used
925 with caution as it could cause interoperability issues.
928 *) Update and tidy signature algorithm extension processing. Work out
929 shared signature algorithms based on preferences and peer algorithms
930 and print them out in s_client and s_server. Abort handshake if no
931 shared signature algorithms.
934 *) Add new functions to allow customised supported signature algorithms
935 for SSL and SSL_CTX structures. Add options to s_client and s_server
939 *) New function SSL_certs_clear() to delete all references to certificates
940 from an SSL structure. Before this once a certificate had been added
941 it couldn't be removed.
944 *) Integrate hostname, email address and IP address checking with certificate
945 verification. New verify options supporting checking in opensl utility.
948 *) Fixes and wildcard matching support to hostname and email checking
949 functions. Add manual page.
950 [Florian Weimer (Red Hat Product Security Team)]
952 *) New functions to check a hostname email or IP address against a
953 certificate. Add options x509 utility to print results of checks against
957 *) Fix OCSP checking.
958 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
960 *) Initial experimental support for explicitly trusted non-root CAs.
961 OpenSSL still tries to build a complete chain to a root but if an
962 intermediate CA has a trust setting included that is used. The first
963 setting is used: whether to trust (e.g., -addtrust option to the x509
967 *) Add -trusted_first option which attempts to find certificates in the
968 trusted store even if an untrusted chain is also supplied.
971 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
972 platform support for Linux and Android.
975 *) Support for linux-x32, ILP32 environment in x86_64 framework.
978 *) Experimental multi-implementation support for FIPS capable OpenSSL.
979 When in FIPS mode the approved implementations are used as normal,
980 when not in FIPS mode the internal unapproved versions are used instead.
981 This means that the FIPS capable OpenSSL isn't forced to use the
982 (often lower performance) FIPS implementations outside FIPS mode.
985 *) Transparently support X9.42 DH parameters when calling
986 PEM_read_bio_DHparameters. This means existing applications can handle
987 the new parameter format automatically.
990 *) Initial experimental support for X9.42 DH parameter format: mainly
991 to support use of 'q' parameter for RFC5114 parameters.
994 *) Add DH parameters from RFC5114 including test data to dhtest.
997 *) Support for automatic EC temporary key parameter selection. If enabled
998 the most preferred EC parameters are automatically used instead of
999 hardcoded fixed parameters. Now a server just has to call:
1000 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
1001 support ECDH and use the most appropriate parameters.
1004 *) Enhance and tidy EC curve and point format TLS extension code. Use
1005 static structures instead of allocation if default values are used.
1006 New ctrls to set curves we wish to support and to retrieve shared curves.
1007 Print out shared curves in s_server. New options to s_server and s_client
1008 to set list of supported curves.
1011 *) New ctrls to retrieve supported signature algorithms and
1012 supported curve values as an array of NIDs. Extend openssl utility
1013 to print out received values.
1016 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
1017 between NIDs and the more common NIST names such as "P-256". Enhance
1018 ecparam utility and ECC method to recognise the NIST names for curves.
1021 *) Enhance SSL/TLS certificate chain handling to support different
1022 chains for each certificate instead of one chain in the parent SSL_CTX.
1025 *) Support for fixed DH ciphersuite client authentication: where both
1026 server and client use DH certificates with common parameters.
1029 *) Support for fixed DH ciphersuites: those requiring DH server
1033 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
1035 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
1036 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
1037 X509_CINF_get_signature were reverted post internal team review.
1039 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
1041 *) Build fixes for the Windows and OpenVMS platforms
1042 [Matt Caswell and Richard Levitte]
1044 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
1046 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
1047 message can cause a segmentation fault in OpenSSL due to a NULL pointer
1048 dereference. This could lead to a Denial Of Service attack. Thanks to
1049 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
1053 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
1054 dtls1_buffer_record function under certain conditions. In particular this
1055 could occur if an attacker sent repeated DTLS records with the same
1056 sequence number but for the next epoch. The memory leak could be exploited
1057 by an attacker in a Denial of Service attack through memory exhaustion.
1058 Thanks to Chris Mueller for reporting this issue.
1062 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
1063 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
1064 method would be set to NULL which could later result in a NULL pointer
1065 dereference. Thanks to Frank Schmirler for reporting this issue.
1069 *) Abort handshake if server key exchange message is omitted for ephemeral
1072 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
1073 reporting this issue.
1077 *) Remove non-export ephemeral RSA code on client and server. This code
1078 violated the TLS standard by allowing the use of temporary RSA keys in
1079 non-export ciphersuites and could be used by a server to effectively
1080 downgrade the RSA key length used to a value smaller than the server
1081 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
1082 INRIA or reporting this issue.
1086 *) Fixed issue where DH client certificates are accepted without verification.
1087 An OpenSSL server will accept a DH certificate for client authentication
1088 without the certificate verify message. This effectively allows a client to
1089 authenticate without the use of a private key. This only affects servers
1090 which trust a client certificate authority which issues certificates
1091 containing DH keys: these are extremely rare and hardly ever encountered.
1092 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
1097 *) Ensure that the session ID context of an SSL is updated when its
1098 SSL_CTX is updated via SSL_set_SSL_CTX.
1100 The session ID context is typically set from the parent SSL_CTX,
1101 and can vary with the CTX.
1104 *) Fix various certificate fingerprint issues.
1106 By using non-DER or invalid encodings outside the signed portion of a
1107 certificate the fingerprint can be changed without breaking the signature.
1108 Although no details of the signed portion of the certificate can be changed
1109 this can cause problems with some applications: e.g. those using the
1110 certificate fingerprint for blacklists.
1112 1. Reject signatures with non zero unused bits.
1114 If the BIT STRING containing the signature has non zero unused bits reject
1115 the signature. All current signature algorithms require zero unused bits.
1117 2. Check certificate algorithm consistency.
1119 Check the AlgorithmIdentifier inside TBS matches the one in the
1120 certificate signature. NB: this will result in signature failure
1121 errors for some broken certificates.
1123 Thanks to Konrad Kraszewski from Google for reporting this issue.
1125 3. Check DSA/ECDSA signatures use DER.
1127 Reencode DSA/ECDSA signatures and compare with the original received
1128 signature. Return an error if there is a mismatch.
1130 This will reject various cases including garbage after signature
1131 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
1132 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
1133 (negative or with leading zeroes).
1135 Further analysis was conducted and fixes were developed by Stephen Henson
1136 of the OpenSSL core team.
1141 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
1142 results on some platforms, including x86_64. This bug occurs at random
1143 with a very low probability, and is not known to be exploitable in any
1144 way, though its exact impact is difficult to determine. Thanks to Pieter
1145 Wuille (Blockstream) who reported this issue and also suggested an initial
1146 fix. Further analysis was conducted by the OpenSSL development team and
1147 Adam Langley of Google. The final fix was developed by Andy Polyakov of
1148 the OpenSSL core team.
1152 *) Do not resume sessions on the server if the negotiated protocol
1153 version does not match the session's version. Resuming with a different
1154 version, while not strictly forbidden by the RFC, is of questionable
1155 sanity and breaks all known clients.
1156 [David Benjamin, Emilia Käsper]
1158 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
1159 early CCS messages during renegotiation. (Note that because
1160 renegotiation is encrypted, this early CCS was not exploitable.)
1163 *) Tighten client-side session ticket handling during renegotiation:
1164 ensure that the client only accepts a session ticket if the server sends
1165 the extension anew in the ServerHello. Previously, a TLS client would
1166 reuse the old extension state and thus accept a session ticket if one was
1167 announced in the initial ServerHello.
1169 Similarly, ensure that the client requires a session ticket if one
1170 was advertised in the ServerHello. Previously, a TLS client would
1171 ignore a missing NewSessionTicket message.
1174 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
1176 *) SRTP Memory Leak.
1178 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
1179 sends a carefully crafted handshake message, to cause OpenSSL to fail
1180 to free up to 64k of memory causing a memory leak. This could be
1181 exploited in a Denial Of Service attack. This issue affects OpenSSL
1182 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
1183 whether SRTP is used or configured. Implementations of OpenSSL that
1184 have been compiled with OPENSSL_NO_SRTP defined are not affected.
1186 The fix was developed by the OpenSSL team.
1190 *) Session Ticket Memory Leak.
1192 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
1193 integrity of that ticket is first verified. In the event of a session
1194 ticket integrity check failing, OpenSSL will fail to free memory
1195 causing a memory leak. By sending a large number of invalid session
1196 tickets an attacker could exploit this issue in a Denial Of Service
1201 *) Build option no-ssl3 is incomplete.
1203 When OpenSSL is configured with "no-ssl3" as a build option, servers
1204 could accept and complete a SSL 3.0 handshake, and clients could be
1205 configured to send them.
1207 [Akamai and the OpenSSL team]
1209 *) Add support for TLS_FALLBACK_SCSV.
1210 Client applications doing fallback retries should call
1211 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
1213 [Adam Langley, Bodo Moeller]
1215 *) Add additional DigestInfo checks.
1217 Reencode DigestInto in DER and check against the original when
1218 verifying RSA signature: this will reject any improperly encoded
1219 DigestInfo structures.
1221 Note: this is a precautionary measure and no attacks are currently known.
1225 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
1227 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
1228 SRP code can be overrun an internal buffer. Add sanity check that
1229 g, A, B < N to SRP code.
1231 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
1232 Group for discovering this issue.
1236 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
1237 TLS 1.0 instead of higher protocol versions when the ClientHello message
1238 is badly fragmented. This allows a man-in-the-middle attacker to force a
1239 downgrade to TLS 1.0 even if both the server and the client support a
1240 higher protocol version, by modifying the client's TLS records.
1242 Thanks to David Benjamin and Adam Langley (Google) for discovering and
1243 researching this issue.
1247 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
1248 to a denial of service attack. A malicious server can crash the client
1249 with a null pointer dereference (read) by specifying an anonymous (EC)DH
1250 ciphersuite and sending carefully crafted handshake messages.
1252 Thanks to Felix Gröbert (Google) for discovering and researching this
1257 *) By sending carefully crafted DTLS packets an attacker could cause openssl
1258 to leak memory. This can be exploited through a Denial of Service attack.
1259 Thanks to Adam Langley for discovering and researching this issue.
1263 *) An attacker can force openssl to consume large amounts of memory whilst
1264 processing DTLS handshake messages. This can be exploited through a
1265 Denial of Service attack.
1266 Thanks to Adam Langley for discovering and researching this issue.
1270 *) An attacker can force an error condition which causes openssl to crash
1271 whilst processing DTLS packets due to memory being freed twice. This
1272 can be exploited through a Denial of Service attack.
1273 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
1278 *) If a multithreaded client connects to a malicious server using a resumed
1279 session and the server sends an ec point format extension it could write
1280 up to 255 bytes to freed memory.
1282 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
1287 *) A malicious server can crash an OpenSSL client with a null pointer
1288 dereference (read) by specifying an SRP ciphersuite even though it was not
1289 properly negotiated with the client. This can be exploited through a
1290 Denial of Service attack.
1292 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
1293 discovering and researching this issue.
1297 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
1298 X509_name_oneline, X509_name_print_ex et al. to leak some information
1299 from the stack. Applications may be affected if they echo pretty printing
1300 output to the attacker.
1302 Thanks to Ivan Fratric (Google) for discovering this issue.
1304 [Emilia Käsper, and Steve Henson]
1306 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1307 for corner cases. (Certain input points at infinity could lead to
1308 bogus results, with non-infinity inputs mapped to infinity too.)
1311 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
1313 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
1314 handshake can force the use of weak keying material in OpenSSL
1315 SSL/TLS clients and servers.
1317 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
1318 researching this issue. (CVE-2014-0224)
1319 [KIKUCHI Masashi, Steve Henson]
1321 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
1322 OpenSSL DTLS client the code can be made to recurse eventually crashing
1325 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
1327 [Imre Rad, Steve Henson]
1329 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
1330 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
1331 client or server. This is potentially exploitable to run arbitrary
1332 code on a vulnerable client or server.
1334 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
1335 [Jüri Aedla, Steve Henson]
1337 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
1338 are subject to a denial of service attack.
1340 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
1341 this issue. (CVE-2014-3470)
1342 [Felix Gröbert, Ivan Fratric, Steve Henson]
1344 *) Harmonize version and its documentation. -f flag is used to display
1346 [mancha <mancha1@zoho.com>]
1348 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
1349 in i2d_ECPrivateKey.
1350 [mancha <mancha1@zoho.com>]
1352 *) Fix some double frees. These are not thought to be exploitable.
1353 [mancha <mancha1@zoho.com>]
1355 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
1357 *) A missing bounds check in the handling of the TLS heartbeat extension
1358 can be used to reveal up to 64k of memory to a connected client or
1361 Thanks for Neel Mehta of Google Security for discovering this bug and to
1362 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
1363 preparing the fix (CVE-2014-0160)
1364 [Adam Langley, Bodo Moeller]
1366 *) Fix for the attack described in the paper "Recovering OpenSSL
1367 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
1368 by Yuval Yarom and Naomi Benger. Details can be obtained from:
1369 http://eprint.iacr.org/2014/140
1371 Thanks to Yuval Yarom and Naomi Benger for discovering this
1372 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
1373 [Yuval Yarom and Naomi Benger]
1375 *) TLS pad extension: draft-agl-tls-padding-03
1377 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
1378 TLS client Hello record length value would otherwise be > 255 and
1379 less that 512 pad with a dummy extension containing zeroes so it
1380 is at least 512 bytes long.
1382 [Adam Langley, Steve Henson]
1384 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
1386 *) Fix for TLS record tampering bug. A carefully crafted invalid
1387 handshake could crash OpenSSL with a NULL pointer exception.
1388 Thanks to Anton Johansson for reporting this issues.
1391 *) Keep original DTLS digest and encryption contexts in retransmission
1392 structures so we can use the previous session parameters if they need
1393 to be resent. (CVE-2013-6450)
1396 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
1397 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
1398 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
1399 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
1400 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
1401 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
1402 [Rob Stradling, Adam Langley]
1404 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
1406 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
1407 supporting platforms or when small records were transferred.
1408 [Andy Polyakov, Steve Henson]
1410 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
1412 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1414 This addresses the flaw in CBC record processing discovered by
1415 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1416 at: http://www.isg.rhul.ac.uk/tls/
1418 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1419 Security Group at Royal Holloway, University of London
1420 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1421 Emilia Käsper for the initial patch.
1423 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1425 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
1426 ciphersuites which can be exploited in a denial of service attack.
1427 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
1428 and detecting this bug and to Wolfgang Ettlinger
1429 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
1433 *) Return an error when checking OCSP signatures when key is NULL.
1434 This fixes a DoS attack. (CVE-2013-0166)
1437 *) Make openssl verify return errors.
1438 [Chris Palmer <palmer@google.com> and Ben Laurie]
1440 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1441 the right response is stapled. Also change SSL_get_certificate()
1442 so it returns the certificate actually sent.
1443 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1444 [Rob Stradling <rob.stradling@comodo.com>]
1446 *) Fix possible deadlock when decoding public keys.
1449 *) Don't use TLS 1.0 record version number in initial client hello
1453 Changes between 1.0.1b and 1.0.1c [10 May 2012]
1455 *) Sanity check record length before skipping explicit IV in TLS
1456 1.2, 1.1 and DTLS to fix DoS attack.
1458 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1459 fuzzing as a service testing platform.
1463 *) Initialise tkeylen properly when encrypting CMS messages.
1464 Thanks to Solar Designer of Openwall for reporting this issue.
1467 *) In FIPS mode don't try to use composite ciphers as they are not
1471 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
1473 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
1474 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
1475 mean any application compiled against OpenSSL 1.0.0 headers setting
1476 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
1477 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
1478 0x10000000L Any application which was previously compiled against
1479 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
1480 will need to be recompiled as a result. Letting be results in
1481 inability to disable specifically TLS 1.1 and in client context,
1482 in unlike event, limit maximum offered version to TLS 1.0 [see below].
1485 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
1486 disable just protocol X, but all protocols above X *if* there are
1487 protocols *below* X still enabled. In more practical terms it means
1488 that if application wants to disable TLS1.0 in favor of TLS1.1 and
1489 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
1490 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
1494 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
1496 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1497 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1498 in CRYPTO_realloc_clean.
1500 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1501 issue and to Adam Langley <agl@chromium.org> for fixing it.
1503 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1505 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
1508 *) Workarounds for some broken servers that "hang" if a client hello
1509 record length exceeds 255 bytes.
1511 1. Do not use record version number > TLS 1.0 in initial client
1512 hello: some (but not all) hanging servers will now work.
1513 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
1514 the number of ciphers sent in the client hello. This should be
1515 set to an even number, such as 50, for example by passing:
1516 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
1517 Most broken servers should now work.
1518 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
1519 TLS 1.2 client support entirely.
1522 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
1525 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
1527 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
1528 STRING form instead of a DigestInfo.
1531 *) The format used for MDC2 RSA signatures is inconsistent between EVP
1532 and the RSA_sign/RSA_verify functions. This was made more apparent when
1533 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
1534 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
1535 the correct format in RSA_verify so both forms transparently work.
1538 *) Some servers which support TLS 1.0 can choke if we initially indicate
1539 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1540 encrypted premaster secret. As a workaround use the maximum permitted
1541 client version in client hello, this should keep such servers happy
1542 and still work with previous versions of OpenSSL.
1545 *) Add support for TLS/DTLS heartbeats.
1546 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1548 *) Add support for SCTP.
1549 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1551 *) Improved PRNG seeding for VOS.
1552 [Paul Green <Paul.Green@stratus.com>]
1554 *) Extensive assembler packs updates, most notably:
1556 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1557 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1558 - x86_64: bit-sliced AES implementation;
1559 - ARM: NEON support, contemporary platforms optimizations;
1560 - s390x: z196 support;
1561 - *: GHASH and GF(2^m) multiplication implementations;
1565 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
1566 (removal of unnecessary code)
1567 [Peter Sylvester <peter.sylvester@edelweb.fr>]
1569 *) Add TLS key material exporter from RFC 5705.
1572 *) Add DTLS-SRTP negotiation from RFC 5764.
1575 *) Add Next Protocol Negotiation,
1576 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
1577 disabled with a no-npn flag to config or Configure. Code donated
1579 [Adam Langley <agl@google.com> and Ben Laurie]
1581 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
1582 NIST-P256, NIST-P521, with constant-time single point multiplication on
1583 typical inputs. Compiler support for the nonstandard type __uint128_t is
1584 required to use this (present in gcc 4.4 and later, for 64-bit builds).
1585 Code made available under Apache License version 2.0.
1587 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
1588 line to include this in your build of OpenSSL, and run "make depend" (or
1589 "make update"). This enables the following EC_METHODs:
1591 EC_GFp_nistp224_method()
1592 EC_GFp_nistp256_method()
1593 EC_GFp_nistp521_method()
1595 EC_GROUP_new_by_curve_name() will automatically use these (while
1596 EC_GROUP_new_curve_GFp() currently prefers the more flexible
1598 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1600 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
1601 all platforms. Move ssize_t definition from e_os.h to the public
1602 header file e_os2.h as it now appears in public header file cms.h
1605 *) New -sigopt option to the ca, req and x509 utilities. Additional
1606 signature parameters can be passed using this option and in
1610 *) Add RSA PSS signing function. This will generate and set the
1611 appropriate AlgorithmIdentifiers for PSS based on those in the
1612 corresponding EVP_MD_CTX structure. No application support yet.
1615 *) Support for companion algorithm specific ASN1 signing routines.
1616 New function ASN1_item_sign_ctx() signs a pre-initialised
1617 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
1618 the appropriate parameters.
1621 *) Add new algorithm specific ASN1 verification initialisation function
1622 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
1623 handling will be the same no matter what EVP_PKEY_METHOD is used.
1624 Add a PSS handler to support verification of PSS signatures: checked
1625 against a number of sample certificates.
1628 *) Add signature printing for PSS. Add PSS OIDs.
1629 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
1631 *) Add algorithm specific signature printing. An individual ASN1 method
1632 can now print out signatures instead of the standard hex dump.
1634 More complex signatures (e.g. PSS) can print out more meaningful
1635 information. Include DSA version that prints out the signature
1639 *) Password based recipient info support for CMS library: implementing
1643 *) Split password based encryption into PBES2 and PBKDF2 functions. This
1644 neatly separates the code into cipher and PBE sections and is required
1645 for some algorithms that split PBES2 into separate pieces (such as
1646 password based CMS).
1649 *) Session-handling fixes:
1650 - Fix handling of connections that are resuming with a session ID,
1651 but also support Session Tickets.
1652 - Fix a bug that suppressed issuing of a new ticket if the client
1653 presented a ticket with an expired session.
1654 - Try to set the ticket lifetime hint to something reasonable.
1655 - Make tickets shorter by excluding irrelevant information.
1656 - On the client side, don't ignore renewed tickets.
1657 [Adam Langley, Bodo Moeller (Google)]
1659 *) Fix PSK session representation.
1662 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
1664 This work was sponsored by Intel.
1667 *) Add GCM support to TLS library. Some custom code is needed to split
1668 the IV between the fixed (from PRF) and explicit (from TLS record)
1669 portions. This adds all GCM ciphersuites supported by RFC5288 and
1670 RFC5289. Generalise some AES* cipherstrings to include GCM and
1671 add a special AESGCM string for GCM only.
1674 *) Expand range of ctrls for AES GCM. Permit setting invocation
1675 field on decrypt and retrieval of invocation field only on encrypt.
1678 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
1679 As required by RFC5289 these ciphersuites cannot be used if for
1680 versions of TLS earlier than 1.2.
1683 *) For FIPS capable OpenSSL interpret a NULL default public key method
1684 as unset and return the appropriate default but do *not* set the default.
1685 This means we can return the appropriate method in applications that
1686 switch between FIPS and non-FIPS modes.
1689 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
1690 ENGINE is used then we cannot handle that in the FIPS module so we
1691 keep original code iff non-FIPS operations are allowed.
1694 *) Add -attime option to openssl utilities.
1695 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
1697 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
1700 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
1701 FIPS EC methods unconditionally for now.
1704 *) New build option no-ec2m to disable characteristic 2 code.
1707 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
1708 all cases can be covered as some introduce binary incompatibilities.
1711 *) Redirect RSA operations to FIPS module including keygen,
1712 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
1715 *) Add similar low level API blocking to ciphers.
1718 *) Low level digest APIs are not approved in FIPS mode: any attempt
1719 to use these will cause a fatal error. Applications that *really* want
1720 to use them can use the private_* version instead.
1723 *) Redirect cipher operations to FIPS module for FIPS builds.
1726 *) Redirect digest operations to FIPS module for FIPS builds.
1729 *) Update build system to add "fips" flag which will link in fipscanister.o
1730 for static and shared library builds embedding a signature if needed.
1733 *) Output TLS supported curves in preference order instead of numerical
1734 order. This is currently hardcoded for the highest order curves first.
1735 This should be configurable so applications can judge speed vs strength.
1738 *) Add TLS v1.2 server support for client authentication.
1741 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
1745 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
1746 FIPS modules versions.
1749 *) Add TLS v1.2 client side support for client authentication. Keep cache
1750 of handshake records longer as we don't know the hash algorithm to use
1751 until after the certificate request message is received.
1754 *) Initial TLS v1.2 client support. Add a default signature algorithms
1755 extension including all the algorithms we support. Parse new signature
1756 format in client key exchange. Relax some ECC signing restrictions for
1757 TLS v1.2 as indicated in RFC5246.
1760 *) Add server support for TLS v1.2 signature algorithms extension. Switch
1761 to new signature format when needed using client digest preference.
1762 All server ciphersuites should now work correctly in TLS v1.2. No client
1763 support yet and no support for client certificates.
1766 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
1767 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
1768 ciphersuites. At present only RSA key exchange ciphersuites work with
1769 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
1770 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
1771 and version checking.
1774 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
1775 with this defined it will not be affected by any changes to ssl internal
1776 structures. Add several utility functions to allow openssl application
1777 to work with OPENSSL_NO_SSL_INTERN defined.
1781 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
1783 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
1786 *) Permit abbreviated handshakes when renegotiating using the function
1787 SSL_renegotiate_abbreviated().
1788 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1790 *) Add call to ENGINE_register_all_complete() to
1791 ENGINE_load_builtin_engines(), so some implementations get used
1792 automatically instead of needing explicit application support.
1795 *) Add support for TLS key exporter as described in RFC5705.
1796 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
1798 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
1799 a few changes are required:
1801 Add SSL_OP_NO_TLSv1_1 flag.
1802 Add TLSv1_1 methods.
1803 Update version checking logic to handle version 1.1.
1804 Add explicit IV handling (ported from DTLS code).
1805 Add command line options to s_client/s_server.
1808 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1810 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1811 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1812 content decryption and always return the same error. Note: this attack
1813 needs on average 2^20 messages so it only affects automated senders. The
1814 old behaviour can be reenabled in the CMS code by setting the
1815 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1816 an MMA defence is not necessary.
1817 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1818 this issue. (CVE-2012-0884)
1821 *) Fix CVE-2011-4619: make sure we really are receiving a
1822 client hello before rejecting multiple SGC restarts. Thanks to
1823 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1826 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1828 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1829 Thanks to Antonio Martin, Enterprise Secure Access Research and
1830 Development, Cisco Systems, Inc. for discovering this bug and
1831 preparing a fix. (CVE-2012-0050)
1834 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1836 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1837 of the Vaudenay padding oracle attack on CBC mode encryption
1838 which enables an efficient plaintext recovery attack against
1839 the OpenSSL implementation of DTLS. Their attack exploits timing
1840 differences arising during decryption processing. A research
1841 paper describing this attack can be found at:
1842 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1843 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1844 Security Group at Royal Holloway, University of London
1845 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1846 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1847 for preparing the fix. (CVE-2011-4108)
1848 [Robin Seggelmann, Michael Tuexen]
1850 *) Clear bytes used for block padding of SSL 3.0 records.
1852 [Adam Langley (Google)]
1854 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1855 Kadianakis <desnacked@gmail.com> for discovering this issue and
1856 Adam Langley for preparing the fix. (CVE-2011-4619)
1857 [Adam Langley (Google)]
1859 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1860 [Andrey Kulikov <amdeich@gmail.com>]
1862 *) Prevent malformed RFC3779 data triggering an assertion failure.
1863 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1864 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1865 [Rob Austein <sra@hactrn.net>]
1867 *) Improved PRNG seeding for VOS.
1868 [Paul Green <Paul.Green@stratus.com>]
1870 *) Fix ssl_ciph.c set-up race.
1871 [Adam Langley (Google)]
1873 *) Fix spurious failures in ecdsatest.c.
1874 [Emilia Käsper (Google)]
1876 *) Fix the BIO_f_buffer() implementation (which was mixing different
1877 interpretations of the '..._len' fields).
1878 [Adam Langley (Google)]
1880 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1881 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1882 threads won't reuse the same blinding coefficients.
1884 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1885 lock to call BN_BLINDING_invert_ex, and avoids one use of
1886 BN_BLINDING_update for each BN_BLINDING structure (previously,
1887 the last update always remained unused).
1888 [Emilia Käsper (Google)]
1890 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1891 [Bob Buckholz (Google)]
1893 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1895 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1896 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1897 [Kaspar Brand <ossl@velox.ch>]
1899 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1900 for multi-threaded use of ECDH. (CVE-2011-3210)
1901 [Adam Langley (Google)]
1903 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1906 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1907 signature public key algorithm by using OID xref utilities instead.
1908 Before this you could only use some ECC ciphersuites with SHA1 only.
1911 *) Add protection against ECDSA timing attacks as mentioned in the paper
1912 by Billy Bob Brumley and Nicola Tuveri, see:
1914 http://eprint.iacr.org/2011/232.pdf
1916 [Billy Bob Brumley and Nicola Tuveri]
1918 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1920 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1921 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1923 *) Fix bug in string printing code: if *any* escaping is enabled we must
1924 escape the escape character (backslash) or the resulting string is
1928 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1930 *) Disable code workaround for ancient and obsolete Netscape browsers
1931 and servers: an attacker can use it in a ciphersuite downgrade attack.
1932 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1935 *) Fixed J-PAKE implementation error, originally discovered by
1936 Sebastien Martini, further info and confirmation from Stefan
1937 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1940 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1942 *) Fix extension code to avoid race conditions which can result in a buffer
1943 overrun vulnerability: resumed sessions must not be modified as they can
1944 be shared by multiple threads. CVE-2010-3864
1947 *) Fix WIN32 build system to correctly link an ENGINE directory into
1951 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1953 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1955 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1957 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1959 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1960 context. The operation can be customised via the ctrl mechanism in
1961 case ENGINEs want to include additional functionality.
1964 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1967 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1968 output hashes compatible with older versions of OpenSSL.
1969 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1971 *) Fix compression algorithm handling: if resuming a session use the
1972 compression algorithm of the resumed session instead of determining
1973 it from client hello again. Don't allow server to change algorithm.
1976 *) Add load_crls() function to apps tidying load_certs() too. Add option
1977 to verify utility to allow additional CRLs to be included.
1980 *) Update OCSP request code to permit adding custom headers to the request:
1981 some responders need this.
1984 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1986 [Julia Lawall <julia@diku.dk>]
1988 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1989 needlessly dereferenced structures, used obsolete functions and
1990 didn't handle all updated verify codes correctly.
1993 *) Disable MD2 in the default configuration.
1996 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1997 indicate the initial BIO being pushed or popped. This makes it possible
1998 to determine whether the BIO is the one explicitly called or as a result
1999 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
2000 it handles reference counts correctly and doesn't zero out the I/O bio
2001 when it is not being explicitly popped. WARNING: applications which
2002 included workarounds for the old buggy behaviour will need to be modified
2003 or they could free up already freed BIOs.
2006 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
2007 renaming to all platforms (within the 0.9.8 branch, this was
2008 done conditionally on Netware platforms to avoid a name clash).
2009 [Guenter <lists@gknw.net>]
2011 *) Add ECDHE and PSK support to DTLS.
2012 [Michael Tuexen <tuexen@fh-muenster.de>]
2014 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
2018 *) Add "missing" function EVP_MD_flags() (without this the only way to
2019 retrieve a digest flags is by accessing the structure directly. Update
2020 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
2021 or cipher is registered as in the "from" argument. Print out all
2022 registered digests in the dgst usage message instead of manually
2023 attempting to work them out.
2026 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
2027 this allows the use of compression and extensions. Change default cipher
2028 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
2029 by default unless an application cipher string requests it.
2032 *) Alter match criteria in PKCS12_parse(). It used to try to use local
2033 key ids to find matching certificates and keys but some PKCS#12 files
2034 don't follow the (somewhat unwritten) rules and this strategy fails.
2035 Now just gather all certificates together and the first private key
2036 then look for the first certificate that matches the key.
2039 *) Support use of registered digest and cipher names for dgst and cipher
2040 commands instead of having to add each one as a special case. So now
2047 openssl dgst -sha256 foo
2049 and this works for ENGINE based algorithms too.
2053 *) Update Gost ENGINE to support parameter files.
2054 [Victor B. Wagner <vitus@cryptocom.ru>]
2056 *) Support GeneralizedTime in ca utility.
2057 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
2059 *) Enhance the hash format used for certificate directory links. The new
2060 form uses the canonical encoding (meaning equivalent names will work
2061 even if they aren't identical) and uses SHA1 instead of MD5. This form
2062 is incompatible with the older format and as a result c_rehash should
2063 be used to rebuild symbolic links.
2066 *) Make PKCS#8 the default write format for private keys, replacing the
2067 traditional format. This form is standardised, more secure and doesn't
2068 include an implicit MD5 dependency.
2071 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
2072 committed to OpenSSL should pass this lot as a minimum.
2075 *) Add session ticket override functionality for use by EAP-FAST.
2076 [Jouni Malinen <j@w1.fi>]
2078 *) Modify HMAC functions to return a value. Since these can be implemented
2079 in an ENGINE errors can occur.
2082 *) Type-checked OBJ_bsearch_ex.
2085 *) Type-checked OBJ_bsearch. Also some constification necessitated
2086 by type-checking. Still to come: TXT_DB, bsearch(?),
2087 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
2091 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
2092 seconds to a tm structure directly, instead of going through OS
2093 specific date routines. This avoids any issues with OS routines such
2094 as the year 2038 bug. New *_adj() functions for ASN1 time structures
2095 and X509_time_adj_ex() to cover the extended range. The existing
2096 X509_time_adj() is still usable and will no longer have any date issues.
2099 *) Delta CRL support. New use deltas option which will attempt to locate
2100 and search any appropriate delta CRLs available.
2102 This work was sponsored by Google.
2105 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
2106 code and add additional score elements. Validate alternate CRL paths
2107 as part of the CRL checking and indicate a new error "CRL path validation
2108 error" in this case. Applications wanting additional details can use
2109 the verify callback and check the new "parent" field. If this is not
2110 NULL CRL path validation is taking place. Existing applications wont
2111 see this because it requires extended CRL support which is off by
2114 This work was sponsored by Google.
2117 *) Support for freshest CRL extension.
2119 This work was sponsored by Google.
2122 *) Initial indirect CRL support. Currently only supported in the CRLs
2123 passed directly and not via lookup. Process certificate issuer
2124 CRL entry extension and lookup CRL entries by bother issuer name
2125 and serial number. Check and process CRL issuer entry in IDP extension.
2127 This work was sponsored by Google.
2130 *) Add support for distinct certificate and CRL paths. The CRL issuer
2131 certificate is validated separately in this case. Only enabled if
2132 an extended CRL support flag is set: this flag will enable additional
2133 CRL functionality in future.
2135 This work was sponsored by Google.
2138 *) Add support for policy mappings extension.
2140 This work was sponsored by Google.
2143 *) Fixes to pathlength constraint, self issued certificate handling,
2144 policy processing to align with RFC3280 and PKITS tests.
2146 This work was sponsored by Google.
2149 *) Support for name constraints certificate extension. DN, email, DNS
2150 and URI types are currently supported.
2152 This work was sponsored by Google.
2155 *) To cater for systems that provide a pointer-based thread ID rather
2156 than numeric, deprecate the current numeric thread ID mechanism and
2157 replace it with a structure and associated callback type. This
2158 mechanism allows a numeric "hash" to be extracted from a thread ID in
2159 either case, and on platforms where pointers are larger than 'long',
2160 mixing is done to help ensure the numeric 'hash' is usable even if it
2161 can't be guaranteed unique. The default mechanism is to use "&errno"
2162 as a pointer-based thread ID to distinguish between threads.
2164 Applications that want to provide their own thread IDs should now use
2165 CRYPTO_THREADID_set_callback() to register a callback that will call
2166 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
2168 Note that ERR_remove_state() is now deprecated, because it is tied
2169 to the assumption that thread IDs are numeric. ERR_remove_state(0)
2170 to free the current thread's error state should be replaced by
2171 ERR_remove_thread_state(NULL).
2173 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
2174 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
2175 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
2176 application was previously providing a numeric thread callback that
2177 was inappropriate for distinguishing threads, then uniqueness might
2178 have been obtained with &errno that happened immediately in the
2179 intermediate development versions of OpenSSL; this is no longer the
2180 case, the numeric thread callback will now override the automatic use
2182 [Geoff Thorpe, with help from Bodo Moeller]
2184 *) Initial support for different CRL issuing certificates. This covers a
2185 simple case where the self issued certificates in the chain exist and
2186 the real CRL issuer is higher in the existing chain.
2188 This work was sponsored by Google.
2191 *) Removed effectively defunct crypto/store from the build.
2194 *) Revamp of STACK to provide stronger type-checking. Still to come:
2195 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
2196 ASN1_STRING, CONF_VALUE.
2199 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
2200 RAM on SSL connections. This option can save about 34k per idle SSL.
2203 *) Revamp of LHASH to provide stronger type-checking. Still to come:
2204 STACK, TXT_DB, bsearch, qsort.
2207 *) Initial support for Cryptographic Message Syntax (aka CMS) based
2208 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
2209 support for data, signedData, compressedData, digestedData and
2210 encryptedData, envelopedData types included. Scripts to check against
2211 RFC4134 examples draft and interop and consistency checks of many
2212 content types and variants.
2215 *) Add options to enc utility to support use of zlib compression BIO.
2218 *) Extend mk1mf to support importing of options and assembly language
2219 files from Configure script, currently only included in VC-WIN32.
2220 The assembly language rules can now optionally generate the source
2221 files from the associated perl scripts.
2224 *) Implement remaining functionality needed to support GOST ciphersuites.
2225 Interop testing has been performed using CryptoPro implementations.
2226 [Victor B. Wagner <vitus@cryptocom.ru>]
2228 *) s390x assembler pack.
2231 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
2235 *) Implement Opaque PRF Input TLS extension as specified in
2236 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
2237 official specification yet and no extension type assignment by
2238 IANA exists, this extension (for now) will have to be explicitly
2239 enabled when building OpenSSL by providing the extension number
2240 to use. For example, specify an option
2242 -DTLSEXT_TYPE_opaque_prf_input=0x9527
2244 to the "config" or "Configure" script to enable the extension,
2245 assuming extension number 0x9527 (which is a completely arbitrary
2246 and unofficial assignment based on the MD5 hash of the Internet
2247 Draft). Note that by doing so, you potentially lose
2248 interoperability with other TLS implementations since these might
2249 be using the same extension number for other purposes.
2251 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
2252 opaque PRF input value to use in the handshake. This will create
2253 an interal copy of the length-'len' string at 'src', and will
2254 return non-zero for success.
2256 To get more control and flexibility, provide a callback function
2259 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
2260 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
2264 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
2267 Callback function 'cb' will be called in handshakes, and is
2268 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
2269 Argument 'arg' is for application purposes (the value as given to
2270 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
2271 be provided to the callback function). The callback function
2272 has to return non-zero to report success: usually 1 to use opaque
2273 PRF input just if possible, or 2 to enforce use of the opaque PRF
2274 input. In the latter case, the library will abort the handshake
2275 if opaque PRF input is not successfully negotiated.
2277 Arguments 'peerinput' and 'len' given to the callback function
2278 will always be NULL and 0 in the case of a client. A server will
2279 see the client's opaque PRF input through these variables if
2280 available (NULL and 0 otherwise). Note that if the server
2281 provides an opaque PRF input, the length must be the same as the
2282 length of the client's opaque PRF input.
2284 Note that the callback function will only be called when creating
2285 a new session (session resumption can resume whatever was
2286 previously negotiated), and will not be called in SSL 2.0
2287 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
2288 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
2289 for applications that need to enforce opaque PRF input.
2293 *) Update ssl code to support digests other than SHA1+MD5 for handshake
2296 [Victor B. Wagner <vitus@cryptocom.ru>]
2298 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2299 RFC4507bis. The encrypted ticket format is an encrypted encoded
2300 SSL_SESSION structure, that way new session features are automatically
2303 If a client application caches session in an SSL_SESSION structure
2304 support is transparent because tickets are now stored in the encoded
2307 The SSL_CTX structure automatically generates keys for ticket
2308 protection in servers so again support should be possible
2309 with no application modification.
2311 If a client or server wishes to disable RFC4507 support then the option
2312 SSL_OP_NO_TICKET can be set.
2314 Add a TLS extension debugging callback to allow the contents of any client
2315 or server extensions to be examined.
2317 This work was sponsored by Google.
2320 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
2321 OpenSSL should now compile cleanly on gcc 4.2
2322 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
2324 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
2325 support including streaming MAC support: this is required for GOST
2326 ciphersuite support.
2327 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
2329 *) Add option -stream to use PKCS#7 streaming in smime utility. New
2330 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
2331 to output in BER and PEM format.
2334 *) Experimental support for use of HMAC via EVP_PKEY interface. This
2335 allows HMAC to be handled via the EVP_DigestSign*() interface. The
2336 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
2337 ENGINE support for HMAC keys which are unextractable. New -mac and
2338 -macopt options to dgst utility.
2341 *) New option -sigopt to dgst utility. Update dgst to use
2342 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
2343 alternative signing paramaters such as X9.31 or PSS in the dgst
2347 *) Change ssl_cipher_apply_rule(), the internal function that does
2348 the work each time a ciphersuite string requests enabling
2349 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
2350 removing ("!foo+bar") a class of ciphersuites: Now it maintains
2351 the order of disabled ciphersuites such that those ciphersuites
2352 that most recently went from enabled to disabled not only stay
2353 in order with respect to each other, but also have higher priority
2354 than other disabled ciphersuites the next time ciphersuites are
2357 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
2358 the same ciphersuites as with "HIGH" alone, but in a specific
2359 order where the PSK ciphersuites come first (since they are the
2360 most recently disabled ciphersuites when "HIGH" is parsed).
2362 Also, change ssl_create_cipher_list() (using this new
2363 funcionality) such that between otherwise identical
2364 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
2368 *) Change ssl_create_cipher_list() so that it automatically
2369 arranges the ciphersuites in reasonable order before starting
2370 to process the rule string. Thus, the definition for "DEFAULT"
2371 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
2372 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
2373 This makes it much easier to arrive at a reasonable default order
2374 in applications for which anonymous ciphers are OK (meaning
2375 that you can't actually use DEFAULT).
2376 [Bodo Moeller; suggested by Victor Duchovni]
2378 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
2379 processing) into multiple integers instead of setting
2380 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
2381 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
2382 (These masks as well as the individual bit definitions are hidden
2383 away into the non-exported interface ssl/ssl_locl.h, so this
2384 change to the definition of the SSL_CIPHER structure shouldn't
2385 affect applications.) This give us more bits for each of these
2386 categories, so there is no longer a need to coagulate AES128 and
2387 AES256 into a single algorithm bit, and to coagulate Camellia128
2388 and Camellia256 into a single algorithm bit, which has led to all
2391 Thus, among other things, the kludge introduced in 0.9.7m and
2392 0.9.8e for masking out AES256 independently of AES128 or masking
2393 out Camellia256 independently of AES256 is not needed here in 0.9.9.
2395 With the change, we also introduce new ciphersuite aliases that
2396 so far were missing: "AES128", "AES256", "CAMELLIA128", and
2400 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
2401 Use the leftmost N bytes of the signature input if the input is
2402 larger than the prime q (with N being the size in bytes of q).
2405 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
2406 it yet and it is largely untested.
2409 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
2412 *) Initial incomplete changes to avoid need for function casts in OpenSSL
2413 some compilers (gcc 4.2 and later) reject their use. Safestack is
2414 reimplemented. Update ASN1 to avoid use of legacy functions.
2417 *) Win32/64 targets are linked with Winsock2.
2420 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
2421 to external functions. This can be used to increase CRL handling
2422 efficiency especially when CRLs are very large by (for example) storing
2423 the CRL revoked certificates in a database.
2426 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
2427 new CRLs added to a directory can be used. New command line option
2428 -verify_return_error to s_client and s_server. This causes real errors
2429 to be returned by the verify callback instead of carrying on no matter
2430 what. This reflects the way a "real world" verify callback would behave.
2433 *) GOST engine, supporting several GOST algorithms and public key formats.
2434 Kindly donated by Cryptocom.
2437 *) Partial support for Issuing Distribution Point CRL extension. CRLs
2438 partitioned by DP are handled but no indirect CRL or reason partitioning
2439 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
2440 selected via a scoring technique which handles IDP and AKID in CRLs.
2443 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
2444 will ultimately be used for all verify operations: this will remove the
2445 X509_STORE dependency on certificate verification and allow alternative
2446 lookup methods. X509_STORE based implementations of these two callbacks.
2449 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2450 Modify get_crl() to find a valid (unexpired) CRL if possible.
2453 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2454 this would be called X509_CRL_cmp() but that name is already used by
2455 a function that just compares CRL issuer names. Cache several CRL
2456 extensions in X509_CRL structure and cache CRLDP in X509.
2459 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2460 this maps equivalent X509_NAME structures into a consistent structure.
2461 Name comparison can then be performed rapidly using memcmp().
2464 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2468 *) Allow digests to supply their own micalg string for S/MIME type using
2469 the ctrl EVP_MD_CTRL_MICALG.
2472 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2473 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2474 ctrl. It can then customise the structure before and/or after signing
2478 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2479 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2480 to free up any added signature OIDs.
2483 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2484 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2485 digest and cipher tables. New options added to openssl utility:
2486 list-message-digest-algorithms and list-cipher-algorithms.
2489 *) Change the array representation of binary polynomials: the list
2490 of degrees of non-zero coefficients is now terminated with -1.
2491 Previously it was terminated with 0, which was also part of the
2492 value; thus, the array representation was not applicable to
2493 polynomials where t^0 has coefficient zero. This change makes
2494 the array representation useful in a more general context.
2497 *) Various modifications and fixes to SSL/TLS cipher string
2498 handling. For ECC, the code now distinguishes between fixed ECDH
2499 with RSA certificates on the one hand and with ECDSA certificates
2500 on the other hand, since these are separate ciphersuites. The
2501 unused code for Fortezza ciphersuites has been removed.
2503 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2504 (not "ECDHE"). For consistency with the code for DH
2505 certificates, use of ECDH certificates is now considered ECDH
2506 authentication, not RSA or ECDSA authentication (the latter is
2507 merely the CA's signing algorithm and not actively used in the
2510 The temporary ciphersuite alias "ECCdraft" is no longer
2511 available, and ECC ciphersuites are no longer excluded from "ALL"
2512 and "DEFAULT". The following aliases now exist for RFC 4492
2513 ciphersuites, most of these by analogy with the DH case:
2515 kECDHr - ECDH cert, signed with RSA
2516 kECDHe - ECDH cert, signed with ECDSA
2517 kECDH - ECDH cert (signed with either RSA or ECDSA)
2518 kEECDH - ephemeral ECDH
2519 ECDH - ECDH cert or ephemeral ECDH
2525 AECDH - anonymous ECDH
2526 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2530 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2531 Use correct micalg parameters depending on digest(s) in signed message.
2534 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2535 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2538 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2539 an engine to register a method. Add ENGINE lookups for methods and
2540 functional reference processing.
2543 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2544 EVP_{Sign,Verify}* which allow an application to customise the signature
2548 *) New -resign option to smime utility. This adds one or more signers
2549 to an existing PKCS#7 signedData structure. Also -md option to use an
2550 alternative message digest algorithm for signing.
2553 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2554 create PKCS7 structures containing multiple signers. Update smime
2555 application to support multiple signers.
2558 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2562 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2563 Reorganize PBE internals to lookup from a static table using NIDs,
2564 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2565 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
2566 PRF which will be automatically used with PBES2.
2569 *) Replace the algorithm specific calls to generate keys in "req" with the
2573 *) Update PKCS#7 enveloped data routines to use new API. This is now
2574 supported by any public key method supporting the encrypt operation. A
2575 ctrl is added to allow the public key algorithm to examine or modify
2576 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
2580 *) Add a ctrl to asn1 method to allow a public key algorithm to express
2581 a default digest type to use. In most cases this will be SHA1 but some
2582 algorithms (such as GOST) need to specify an alternative digest. The
2583 return value indicates how strong the preference is 1 means optional and
2584 2 is mandatory (that is it is the only supported type). Modify
2585 ASN1_item_sign() to accept a NULL digest argument to indicate it should
2586 use the default md. Update openssl utilities to use the default digest
2587 type for signing if it is not explicitly indicated.
2590 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
2591 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
2592 signing method from the key type. This effectively removes the link
2593 between digests and public key types.
2596 *) Add an OID cross reference table and utility functions. Its purpose is to
2597 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
2598 rsaEncryption. This will allow some of the algorithm specific hackery
2599 needed to use the correct OID to be removed.
2602 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
2603 structures for PKCS7_sign(). They are now set up by the relevant public
2607 *) Add provisional EC pkey method with support for ECDSA and ECDH.
2610 *) Add support for key derivation (agreement) in the API, DH method and
2614 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
2615 public and private key formats. As a side effect these add additional
2616 command line functionality not previously available: DSA signatures can be
2617 generated and verified using pkeyutl and DH key support and generation in
2622 [Oliver Tappe <zooey@hirschkaefer.de>]
2624 *) New make target "install_html_docs" installs HTML renditions of the
2626 [Oliver Tappe <zooey@hirschkaefer.de>]
2628 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
2629 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
2630 support key and parameter generation and add initial key generation
2631 functionality for RSA.
2634 *) Add functions for main EVP_PKEY_method operations. The undocumented
2635 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
2636 EVP_PKEY_{encrypt,decrypt}_old.
2639 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
2640 key API, doesn't do much yet.
2643 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
2644 public key algorithms. New option to openssl utility:
2645 "list-public-key-algorithms" to print out info.
2648 *) Implement the Supported Elliptic Curves Extension for
2649 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2652 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
2653 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
2656 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
2657 utilities such as rsa, dsa, dsaparam etc except they process any key
2661 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
2662 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
2663 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
2667 *) Initial support for pluggable public key ASN1.
2668 De-spaghettify the public key ASN1 handling. Move public and private
2669 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
2670 algorithm specific handling to a single module within the relevant
2671 algorithm directory. Add functions to allow (near) opaque processing
2672 of public and private key structures.
2675 *) Implement the Supported Point Formats Extension for
2676 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2679 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
2680 for the psk identity [hint] and the psk callback functions to the
2681 SSL_SESSION, SSL and SSL_CTX structure.
2684 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
2688 SSL_CTX_use_psk_identity_hint
2689 SSL_get_psk_identity_hint
2690 SSL_get_psk_identity
2691 SSL_use_psk_identity_hint
2693 [Mika Kousa and Pasi Eronen of Nokia Corporation]
2695 *) Add RFC 3161 compliant time stamp request creation, response generation
2696 and response verification functionality.
2697 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
2699 *) Add initial support for TLS extensions, specifically for the server_name
2700 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2701 have new members for a host name. The SSL data structure has an
2702 additional member SSL_CTX *initial_ctx so that new sessions can be
2703 stored in that context to allow for session resumption, even after the
2704 SSL has been switched to a new SSL_CTX in reaction to a client's
2705 server_name extension.
2707 New functions (subject to change):
2709 SSL_get_servername()
2710 SSL_get_servername_type()
2713 New CTRL codes and macros (subject to change):
2715 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2716 - SSL_CTX_set_tlsext_servername_callback()
2717 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2718 - SSL_CTX_set_tlsext_servername_arg()
2719 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2721 openssl s_client has a new '-servername ...' option.
2723 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2724 '-key2 ...', '-servername_fatal' (subject to change). This allows
2725 testing the HostName extension for a specific single host name ('-cert'
2726 and '-key' remain fallbacks for handshakes without HostName
2727 negotiation). If the unrecognized_name alert has to be sent, this by
2728 default is a warning; it becomes fatal with the '-servername_fatal'
2731 [Peter Sylvester, Remy Allais, Christophe Renou]
2733 *) Whirlpool hash implementation is added.
2736 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
2737 bn(64,32). Because of instruction set limitations it doesn't have
2738 any negative impact on performance. This was done mostly in order
2739 to make it possible to share assembler modules, such as bn_mul_mont
2740 implementations, between 32- and 64-bit builds without hassle.
2743 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
2744 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
2748 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
2749 dedicated Montgomery multiplication procedure, is introduced.
2750 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
2751 "64-bit" performance on certain 32-bit targets.
2754 *) New option SSL_OP_NO_COMP to disable use of compression selectively
2755 in SSL structures. New SSL ctrl to set maximum send fragment size.
2756 Save memory by seeting the I/O buffer sizes dynamically instead of
2757 using the maximum available value.
2760 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
2761 in addition to the text details.
2764 *) Very, very preliminary EXPERIMENTAL support for printing of general
2765 ASN1 structures. This currently produces rather ugly output and doesn't
2766 handle several customised structures at all.
2769 *) Integrated support for PVK file format and some related formats such
2770 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
2771 these in the 'rsa' and 'dsa' utilities.
2774 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
2777 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
2778 place for the (very old) "NETSCAPE" format certificates which are now
2779 handled using new ASN1 code equivalents.
2782 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
2783 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
2784 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
2787 *) Modify CRL distribution points extension code to print out previously
2788 unsupported fields. Enhance extension setting code to allow setting of
2792 *) Add print and set support for Issuing Distribution Point CRL extension.
2795 *) Change 'Configure' script to enable Camellia by default.
2798 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2800 *) When rejecting SSL/TLS records due to an incorrect version number, never
2801 update s->server with a new major version number. As of
2802 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2803 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2804 the previous behavior could result in a read attempt at NULL when
2805 receiving specific incorrect SSL/TLS records once record payload
2806 protection is active. (CVE-2010-0740)
2807 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2809 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2810 could be crashed if the relevant tables were not present (e.g. chrooted).
2811 [Tomas Hoger <thoger@redhat.com>]
2813 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2815 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2816 [Martin Olsson, Neel Mehta]
2818 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2819 accommodate for stack sorting, always a write lock!).
2822 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2823 excessive delays in the RAND_poll(): over a minute. As a workaround
2824 include a time check in the inner Heap32Next loop too.
2827 *) The code that handled flushing of data in SSL/TLS originally used the
2828 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2829 the problem outlined in PR#1949. The fix suggested there however can
2830 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2831 of Apache). So instead simplify the code to flush unconditionally.
2832 This should be fine since flushing with no data to flush is a no op.
2835 *) Handle TLS versions 2.0 and later properly and correctly use the
2836 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2837 off ancient servers have a habit of sticking around for a while...
2840 *) Modify compression code so it frees up structures without using the
2841 ex_data callbacks. This works around a problem where some applications
2842 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2843 restarting) then use compression (e.g. SSL with compression) later.
2844 This results in significant per-connection memory leaks and
2845 has caused some security issues including CVE-2008-1678 and
2849 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2850 change when encrypting or decrypting.
2853 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2854 connect and renegotiate with servers which do not support RI.
2855 Until RI is more widely deployed this option is enabled by default.
2858 *) Add "missing" ssl ctrls to clear options and mode.
2861 *) If client attempts to renegotiate and doesn't support RI respond with
2862 a no_renegotiation alert as required by RFC5746. Some renegotiating
2863 TLS clients will continue a connection gracefully when they receive
2864 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2865 waiting for a server hello which it will never receive. Now we treat a
2866 received no_renegotiation alert as a fatal error. This is because
2867 applications requesting a renegotiation might well expect it to succeed
2868 and would have no code in place to handle the server denying it so the
2869 only safe thing to do is to terminate the connection.
2872 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2873 peer supports secure renegotiation and 0 otherwise. Print out peer
2874 renegotiation support in s_client/s_server.
2877 *) Replace the highly broken and deprecated SPKAC certification method with
2878 the updated NID creation version. This should correctly handle UTF8.
2881 *) Implement RFC5746. Re-enable renegotiation but require the extension
2882 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2883 turns out to be a bad idea. It has been replaced by
2884 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2885 SSL_CTX_set_options(). This is really not recommended unless you
2886 know what you are doing.
2887 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2889 *) Fixes to stateless session resumption handling. Use initial_ctx when
2890 issuing and attempting to decrypt tickets in case it has changed during
2891 servername handling. Use a non-zero length session ID when attempting
2892 stateless session resumption: this makes it possible to determine if
2893 a resumption has occurred immediately after receiving server hello
2894 (several places in OpenSSL subtly assume this) instead of later in
2898 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2899 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2900 fixes for a few places where the return code is not checked
2902 [Julia Lawall <julia@diku.dk>]
2904 *) Add --strict-warnings option to Configure script to include devteam
2905 warnings in other configurations.
2908 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2909 makes it possible to install openssl libraries in locations which
2910 have names other than "lib", for example "/usr/lib64" which some
2912 [Steve Henson, based on patch from Jeremy Utley]
2914 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2915 X690 8.9.12 and can produce some misleading textual output of OIDs.
2916 [Steve Henson, reported by Dan Kaminsky]
2918 *) Delete MD2 from algorithm tables. This follows the recommendation in
2919 several standards that it is not used in new applications due to
2920 several cryptographic weaknesses. For binary compatibility reasons
2921 the MD2 API is still compiled in by default.
2924 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2928 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2929 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2931 [Guenter <lists@gknw.net>]
2933 *) Fix the server certificate chain building code to use X509_verify_cert(),
2934 it used to have an ad-hoc builder which was unable to cope with anything
2935 other than a simple chain.
2936 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2938 *) Don't check self signed certificate signatures in X509_verify_cert()
2939 by default (a flag can override this): it just wastes time without
2940 adding any security. As a useful side effect self signed root CAs
2941 with non-FIPS digests are now usable in FIPS mode.
2944 *) In dtls1_process_out_of_seq_message() the check if the current message
2945 is already buffered was missing. For every new message was memory
2946 allocated, allowing an attacker to perform an denial of service attack
2947 with sending out of seq handshake messages until there is no memory
2948 left. Additionally every future messege was buffered, even if the
2949 sequence number made no sense and would be part of another handshake.
2950 So only messages with sequence numbers less than 10 in advance will be
2951 buffered. (CVE-2009-1378)
2952 [Robin Seggelmann, discovered by Daniel Mentz]
2954 *) Records are buffered if they arrive with a future epoch to be
2955 processed after finishing the corresponding handshake. There is
2956 currently no limitation to this buffer allowing an attacker to perform
2957 a DOS attack with sending records with future epochs until there is no
2958 memory left. This patch adds the pqueue_size() function to determine
2959 the size of a buffer and limits the record buffer to 100 entries.
2961 [Robin Seggelmann, discovered by Daniel Mentz]
2963 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2964 parent structure is freed. (CVE-2009-1379)
2967 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2968 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2971 [Ilya O. <vrghost@gmail.com>]
2973 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2975 *) Disable renegotiation completely - this fixes a severe security
2976 problem (CVE-2009-3555) at the cost of breaking all
2977 renegotiation. Renegotiation can be re-enabled by setting
2978 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2979 run-time. This is really not recommended unless you know what
2983 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2985 *) Don't set val to NULL when freeing up structures, it is freed up by
2986 underlying code. If sizeof(void *) > sizeof(long) this can result in
2987 zeroing past the valid field. (CVE-2009-0789)
2988 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2990 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2991 checked correctly. This would allow some invalid signed attributes to
2992 appear to verify correctly. (CVE-2009-0591)
2993 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2995 *) Reject UniversalString and BMPString types with invalid lengths. This
2996 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2997 a legal length. (CVE-2009-0590)
3000 *) Set S/MIME signing as the default purpose rather than setting it
3001 unconditionally. This allows applications to override it at the store
3005 *) Permit restricted recursion of ASN1 strings. This is needed in practice
3006 to handle some structures.
3009 *) Improve efficiency of mem_gets: don't search whole buffer each time
3011 [Jeremy Shapiro <jnshapir@us.ibm.com>]
3013 *) New -hex option for openssl rand.
3016 *) Print out UTF8String and NumericString when parsing ASN1.
3019 *) Support NumericString type for name components.
3022 *) Allow CC in the environment to override the automatically chosen
3023 compiler. Note that nothing is done to ensure flags work with the
3027 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
3029 *) Properly check EVP_VerifyFinal() and similar return values
3031 [Ben Laurie, Bodo Moeller, Google Security Team]
3033 *) Enable TLS extensions by default.
3036 *) Allow the CHIL engine to be loaded, whether the application is
3037 multithreaded or not. (This does not release the developer from the
3038 obligation to set up the dynamic locking callbacks.)
3039 [Sander Temme <sander@temme.net>]
3041 *) Use correct exit code if there is an error in dgst command.
3042 [Steve Henson; problem pointed out by Roland Dirlewanger]
3044 *) Tweak Configure so that you need to say "experimental-jpake" to enable
3045 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
3048 *) Add experimental JPAKE support, including demo authentication in
3049 s_client and s_server.
3052 *) Set the comparison function in v3_addr_canonize().
3053 [Rob Austein <sra@hactrn.net>]
3055 *) Add support for XMPP STARTTLS in s_client.
3056 [Philip Paeps <philip@freebsd.org>]
3058 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
3059 to ensure that even with this option, only ciphersuites in the
3060 server's preference list will be accepted. (Note that the option
3061 applies only when resuming a session, so the earlier behavior was
3062 just about the algorithm choice for symmetric cryptography.)
3065 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
3067 *) Fix NULL pointer dereference if a DTLS server received
3068 ChangeCipherSpec as first record (CVE-2009-1386).
3071 *) Fix a state transition in s3_srvr.c and d1_srvr.c
3072 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
3075 *) The fix in 0.9.8c that supposedly got rid of unsafe
3076 double-checked locking was incomplete for RSA blinding,
3077 addressing just one layer of what turns out to have been
3078 doubly unsafe triple-checked locking.
3080 So now fix this for real by retiring the MONT_HELPER macro
3081 in crypto/rsa/rsa_eay.c.
3083 [Bodo Moeller; problem pointed out by Marius Schilder]
3085 *) Various precautionary measures:
3087 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
3089 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
3090 (NB: This would require knowledge of the secret session ticket key
3091 to exploit, in which case you'd be SOL either way.)
3093 - Change bn_nist.c so that it will properly handle input BIGNUMs
3094 outside the expected range.
3096 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
3099 [Neel Mehta, Bodo Moeller]
3101 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
3102 the load fails. Useful for distros.
3103 [Ben Laurie and the FreeBSD team]
3105 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
3108 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
3111 *) Expand ENGINE to support engine supplied SSL client certificate functions.
3113 This work was sponsored by Logica.
3116 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
3117 keystores. Support for SSL/TLS client authentication too.
3118 Not compiled unless enable-capieng specified to Configure.
3120 This work was sponsored by Logica.
3123 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
3124 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
3125 attribute creation routines such as certifcate requests and PKCS#12
3129 Changes between 0.9.8g and 0.9.8h [28 May 2008]
3131 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
3132 handshake which could lead to a cilent crash as found using the
3133 Codenomicon TLS test suite (CVE-2008-1672)
3134 [Steve Henson, Mark Cox]
3136 *) Fix double free in TLS server name extensions which could lead to
3137 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
3140 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
3142 Clear the error queue to ensure that error entries left from
3143 older function calls do not interfere with the correct operation.
3144 [Lutz Jaenicke, Erik de Castro Lopo]
3146 *) Remove root CA certificates of commercial CAs:
3148 The OpenSSL project does not recommend any specific CA and does not
3149 have any policy with respect to including or excluding any CA.
3150 Therefore it does not make any sense to ship an arbitrary selection
3151 of root CA certificates with the OpenSSL software.
3154 *) RSA OAEP patches to fix two separate invalid memory reads.
3155 The first one involves inputs when 'lzero' is greater than
3156 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
3157 before the beginning of from). The second one involves inputs where
3158 the 'db' section contains nothing but zeroes (there is a one-byte
3159 invalid read after the end of 'db').
3160 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3162 *) Partial backport from 0.9.9-dev:
3164 Introduce bn_mul_mont (dedicated Montgomery multiplication
3165 procedure) as a candidate for BIGNUM assembler implementation.
3166 While 0.9.9-dev uses assembler for various architectures, only
3167 x86_64 is available by default here in the 0.9.8 branch, and
3168 32-bit x86 is available through a compile-time setting.
3170 To try the 32-bit x86 assembler implementation, use Configure
3171 option "enable-montasm" (which exists only for this backport).
3173 As "enable-montasm" for 32-bit x86 disclaims code stability
3174 anyway, in this constellation we activate additional code
3175 backported from 0.9.9-dev for further performance improvements,
3176 namely BN_from_montgomery_word. (To enable this otherwise,
3177 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
3179 [Andy Polyakov (backport partially by Bodo Moeller)]
3181 *) Add TLS session ticket callback. This allows an application to set
3182 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
3183 values. This is useful for key rollover for example where several key
3184 sets may exist with different names.
3187 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
3188 This was broken until now in 0.9.8 releases, such that the only way
3189 a registered ENGINE could be used (assuming it initialises
3190 successfully on the host) was to explicitly set it as the default
3191 for the relevant algorithms. This is in contradiction with 0.9.7
3192 behaviour and the documentation. With this fix, when an ENGINE is
3193 registered into a given algorithm's table of implementations, the
3194 'uptodate' flag is reset so that auto-discovery will be used next
3195 time a new context for that algorithm attempts to select an
3197 [Ian Lister (tweaked by Geoff Thorpe)]
3199 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
3200 implemention in the following ways:
3202 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
3205 Lack of BER streaming support means one pass streaming processing is
3206 only supported if data is detached: setting the streaming flag is
3207 ignored for embedded content.
3209 CMS support is disabled by default and must be explicitly enabled
3210 with the enable-cms configuration option.
3213 *) Update the GMP engine glue to do direct copies between BIGNUM and
3214 mpz_t when openssl and GMP use the same limb size. Otherwise the
3215 existing "conversion via a text string export" trick is still used.
3216 [Paul Sheer <paulsheer@gmail.com>]
3218 *) Zlib compression BIO. This is a filter BIO which compressed and
3219 uncompresses any data passed through it.
3222 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
3223 RFC3394 compatible AES key wrapping.
3226 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3227 sets string data without copying. X509_ALGOR_set0() and
3228 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3229 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3230 from an X509_ATTRIBUTE structure optionally checking it occurs only
3231 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3235 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3236 to get the expected BN_FLG_CONSTTIME behavior.
3237 [Bodo Moeller (Google)]
3241 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3242 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3243 - added some more tests to do_tests.pl
3244 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3245 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3246 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3247 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3248 - various changes to netware.pl to enable gcc-cross builds on Win32
3250 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3251 - various changes to fix missing prototype warnings
3252 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3253 - added AES, WHIRLPOOL and CPUID assembler code to build files
3254 - added missing AES assembler make rules to mk1mf.pl
3255 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3256 [Guenter Knauf <eflash@gmx.net>]
3258 *) Implement certificate status request TLS extension defined in RFC3546.
3259 A client can set the appropriate parameters and receive the encoded
3260 OCSP response via a callback. A server can query the supplied parameters
3261 and set the encoded OCSP response in the callback. Add simplified examples
3262 to s_client and s_server.
3265 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3267 *) Fix various bugs:
3268 + Binary incompatibility of ssl_ctx_st structure
3269 + DTLS interoperation with non-compliant servers
3270 + Don't call get_session_cb() without proposed session
3271 + Fix ia64 assembler code
3272 [Andy Polyakov, Steve Henson]
3274 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3276 *) DTLS Handshake overhaul. There were longstanding issues with
3277 OpenSSL DTLS implementation, which were making it impossible for
3278 RFC 4347 compliant client to communicate with OpenSSL server.
3279 Unfortunately just fixing these incompatibilities would "cut off"
3280 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3281 server keeps tolerating non RFC compliant syntax. The opposite is
3282 not true, 0.9.8f client can not communicate with earlier server.
3283 This update even addresses CVE-2007-4995.
3286 *) Changes to avoid need for function casts in OpenSSL: some compilers
3287 (gcc 4.2 and later) reject their use.
3288 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3291 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3292 RFC4507bis. The encrypted ticket format is an encrypted encoded
3293 SSL_SESSION structure, that way new session features are automatically
3296 If a client application caches session in an SSL_SESSION structure
3297 support is transparent because tickets are now stored in the encoded
3300 The SSL_CTX structure automatically generates keys for ticket
3301 protection in servers so again support should be possible
3302 with no application modification.
3304 If a client or server wishes to disable RFC4507 support then the option
3305 SSL_OP_NO_TICKET can be set.
3307 Add a TLS extension debugging callback to allow the contents of any client
3308 or server extensions to be examined.
3310 This work was sponsored by Google.
3313 *) Add initial support for TLS extensions, specifically for the server_name
3314 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3315 have new members for a host name. The SSL data structure has an
3316 additional member SSL_CTX *initial_ctx so that new sessions can be
3317 stored in that context to allow for session resumption, even after the
3318 SSL has been switched to a new SSL_CTX in reaction to a client's
3319 server_name extension.
3321 New functions (subject to change):
3323 SSL_get_servername()
3324 SSL_get_servername_type()
3327 New CTRL codes and macros (subject to change):
3329 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3330 - SSL_CTX_set_tlsext_servername_callback()
3331 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3332 - SSL_CTX_set_tlsext_servername_arg()
3333 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3335 openssl s_client has a new '-servername ...' option.
3337 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3338 '-key2 ...', '-servername_fatal' (subject to change). This allows
3339 testing the HostName extension for a specific single host name ('-cert'
3340 and '-key' remain fallbacks for handshakes without HostName
3341 negotiation). If the unrecognized_name alert has to be sent, this by
3342 default is a warning; it becomes fatal with the '-servername_fatal'
3345 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3347 *) Add AES and SSE2 assembly language support to VC++ build.
3350 *) Mitigate attack on final subtraction in Montgomery reduction.
3353 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3354 (which previously caused an internal error).
3357 *) Squeeze another 10% out of IGE mode when in != out.
3360 *) AES IGE mode speedup.
3361 [Dean Gaudet (Google)]
3363 *) Add the Korean symmetric 128-bit cipher SEED (see
3364 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3365 add SEED ciphersuites from RFC 4162:
3367 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3368 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3369 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3370 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3372 To minimize changes between patchlevels in the OpenSSL 0.9.8
3373 series, SEED remains excluded from compilation unless OpenSSL
3374 is configured with 'enable-seed'.
3375 [KISA, Bodo Moeller]
3377 *) Mitigate branch prediction attacks, which can be practical if a
3378 single processor is shared, allowing a spy process to extract
3379 information. For detailed background information, see
3380 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3381 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3382 and Necessary Software Countermeasures"). The core of the change
3383 are new versions BN_div_no_branch() and
3384 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3385 respectively, which are slower, but avoid the security-relevant
3386 conditional branches. These are automatically called by BN_div()
3387 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3388 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3389 remove a conditional branch.
3391 BN_FLG_CONSTTIME is the new name for the previous
3392 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3393 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3394 in the exponent causes BN_mod_exp_mont() to use the alternative
3395 implementation in BN_mod_exp_mont_consttime().) The old name
3396 remains as a deprecated alias.
3398 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3399 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3400 constant-time implementations for more than just exponentiation.
3401 Here too the old name is kept as a deprecated alias.
3403 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3404 the BN_BLINDING structure gets an independent copy of the
3405 modulus. This means that the previous "BIGNUM *m" argument to
3406 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3407 essentially becomes "const BIGNUM *m", although we can't actually
3408 change this in the header file before 0.9.9. It allows
3409 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3410 enable BN_FLG_CONSTTIME.
3412 [Matthew D Wood (Intel Corp)]
3414 *) In the SSL/TLS server implementation, be strict about session ID
3415 context matching (which matters if an application uses a single
3416 external cache for different purposes). Previously,
3417 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3418 set. This did ensure strict client verification, but meant that,
3419 with applications using a single external cache for quite
3420 different requirements, clients could circumvent ciphersuite
3421 restrictions for a given session ID context by starting a session
3422 in a different context.
3425 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3426 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3427 authentication-only ciphersuites.
3430 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3431 not complete and could lead to a possible single byte overflow
3432 (CVE-2007-5135) [Ben Laurie]
3434 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3436 *) Since AES128 and AES256 (and similarly Camellia128 and
3437 Camellia256) share a single mask bit in the logic of
3438 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3439 kludge to work properly if AES128 is available and AES256 isn't
3440 (or if Camellia128 is available and Camellia256 isn't).
3443 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3444 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3445 When a point or a seed is encoded in a BIT STRING, we need to
3446 prevent the removal of trailing zero bits to get the proper DER
3447 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3448 of a NamedBitList, for which trailing 0 bits need to be removed.)
3451 *) Have SSL/TLS server implementation tolerate "mismatched" record
3452 protocol version while receiving ClientHello even if the
3453 ClientHello is fragmented. (The server can't insist on the
3454 particular protocol version it has chosen before the ServerHello
3455 message has informed the client about his choice.)
3458 *) Add RFC 3779 support.
3459 [Rob Austein for ARIN, Ben Laurie]
3461 *) Load error codes if they are not already present instead of using a
3462 static variable. This allows them to be cleanly unloaded and reloaded.
3463 Improve header file function name parsing.
3466 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3467 or CAPABILITY handshake as required by RFCs.
3470 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3472 *) Introduce limits to prevent malicious keys being able to
3473 cause a denial of service. (CVE-2006-2940)
3474 [Steve Henson, Bodo Moeller]
3476 *) Fix ASN.1 parsing of certain invalid structures that can result
3477 in a denial of service. (CVE-2006-2937) [Steve Henson]
3479 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3480 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3482 *) Fix SSL client code which could crash if connecting to a
3483 malicious SSLv2 server. (CVE-2006-4343)
3484 [Tavis Ormandy and Will Drewry, Google Security Team]
3486 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3487 match only those. Before that, "AES256-SHA" would be interpreted
3488 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3489 the same strength classification in 0.9.7h) as we currently only
3490 have a single AES bit in the ciphersuite description bitmap.
3491 That change, however, also applied to ciphersuite strings such as
3492 "RC4-MD5" that intentionally matched multiple ciphersuites --
3493 namely, SSL 2.0 ciphersuites in addition to the more common ones
3494 from SSL 3.0/TLS 1.0.
3496 So we change the selection algorithm again: Naming an explicit
3497 ciphersuite selects this one ciphersuite, and any other similar
3498 ciphersuite (same bitmap) from *other* protocol versions.
3499 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3500 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3502 Since SSL 2.0 does not have any ciphersuites for which the
3503 128/256 bit distinction would be relevant, this works for now.
3504 The proper fix will be to use different bits for AES128 and
3505 AES256, which would have avoided the problems from the beginning;
3506 however, bits are scarce, so we can only do this in a new release
3507 (not just a patchlevel) when we can change the SSL_CIPHER
3508 definition to split the single 'unsigned long mask' bitmap into
3509 multiple values to extend the available space.
3513 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3515 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3516 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3518 *) Add AES IGE and biIGE modes.
3521 *) Change the Unix randomness entropy gathering to use poll() when
3522 possible instead of select(), since the latter has some
3523 undesirable limitations.
3524 [Darryl Miles via Richard Levitte and Bodo Moeller]
3526 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3527 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3528 cannot be implicitly activated as part of, e.g., the "AES" alias.
3529 However, please upgrade to OpenSSL 0.9.9[-dev] for
3530 non-experimental use of the ECC ciphersuites to get TLS extension
3531 support, which is required for curve and point format negotiation
3532 to avoid potential handshake problems.
3535 *) Disable rogue ciphersuites:
3537 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3538 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3539 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3541 The latter two were purportedly from
3542 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3545 Also deactivate the remaining ciphersuites from
3546 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3547 unofficial, and the ID has long expired.
3550 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3551 dual-core machines) and other potential thread-safety issues.
3554 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3555 versions), which is now available for royalty-free use
3556 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3557 Also, add Camellia TLS ciphersuites from RFC 4132.
3559 To minimize changes between patchlevels in the OpenSSL 0.9.8
3560 series, Camellia remains excluded from compilation unless OpenSSL
3561 is configured with 'enable-camellia'.
3564 *) Disable the padding bug check when compression is in use. The padding
3565 bug check assumes the first packet is of even length, this is not
3566 necessarily true if compresssion is enabled and can result in false
3567 positives causing handshake failure. The actual bug test is ancient
3568 code so it is hoped that implementations will either have fixed it by
3569 now or any which still have the bug do not support compression.
3572 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3574 *) When applying a cipher rule check to see if string match is an explicit
3575 cipher suite and only match that one cipher suite if it is.
3578 *) Link in manifests for VC++ if needed.
3579 [Austin Ziegler <halostatue@gmail.com>]
3581 *) Update support for ECC-based TLS ciphersuites according to
3582 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3583 TLS extensions, which are supported starting with the 0.9.9
3584 branch, not in the OpenSSL 0.9.8 branch).
3587 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3588 opaque EVP_CIPHER_CTX handling.
3591 *) Fixes and enhancements to zlib compression code. We now only use
3592 "zlib1.dll" and use the default __cdecl calling convention on Win32
3593 to conform with the standards mentioned here:
3594 http://www.zlib.net/DLL_FAQ.txt
3595 Static zlib linking now works on Windows and the new --with-zlib-include
3596 --with-zlib-lib options to Configure can be used to supply the location
3597 of the headers and library. Gracefully handle case where zlib library
3601 *) Several fixes and enhancements to the OID generation code. The old code
3602 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
3603 handle numbers larger than ULONG_MAX, truncated printing and had a
3604 non standard OBJ_obj2txt() behaviour.
3607 *) Add support for building of engines under engine/ as shared libraries
3608 under VC++ build system.
3611 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
3612 Hopefully, we will not see any false combination of paths any more.
3615 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
3617 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3618 (part of SSL_OP_ALL). This option used to disable the
3619 countermeasure against man-in-the-middle protocol-version
3620 rollback in the SSL 2.0 server implementation, which is a bad
3621 idea. (CVE-2005-2969)
3623 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3624 for Information Security, National Institute of Advanced Industrial
3625 Science and Technology [AIST], Japan)]
3627 *) Add two function to clear and return the verify parameter flags.
3630 *) Keep cipherlists sorted in the source instead of sorting them at
3631 runtime, thus removing the need for a lock.
3634 *) Avoid some small subgroup attacks in Diffie-Hellman.
3635 [Nick Mathewson and Ben Laurie]
3637 *) Add functions for well-known primes.
3640 *) Extended Windows CE support.
3641 [Satoshi Nakamura and Andy Polyakov]
3643 *) Initialize SSL_METHOD structures at compile time instead of during
3644 runtime, thus removing the need for a lock.
3647 *) Make PKCS7_decrypt() work even if no certificate is supplied by
3648 attempting to decrypt each encrypted key in turn. Add support to
3652 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
3654 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
3657 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
3660 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
3661 key into the same file any more.
3664 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
3667 *) Add -utf8 command line and config file option to 'ca'.
3668 [Stefan <stf@udoma.org]
3670 *) Removed the macro des_crypt(), as it seems to conflict with some
3671 libraries. Use DES_crypt().
3674 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
3675 involves renaming the source and generated shared-libs for
3676 both. The engines will accept the corrected or legacy ids
3677 ('ncipher' and '4758_cca' respectively) when binding. NB,
3678 this only applies when building 'shared'.
3679 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
3681 *) Add attribute functions to EVP_PKEY structure. Modify
3682 PKCS12_create() to recognize a CSP name attribute and
3683 use it. Make -CSP option work again in pkcs12 utility.
3686 *) Add new functionality to the bn blinding code:
3687 - automatic re-creation of the BN_BLINDING parameters after
3688 a fixed number of uses (currently 32)
3689 - add new function for parameter creation
3690 - introduce flags to control the update behaviour of the
3691 BN_BLINDING parameters
3692 - hide BN_BLINDING structure
3693 Add a second BN_BLINDING slot to the RSA structure to improve
3694 performance when a single RSA object is shared among several
3698 *) Add support for DTLS.
3699 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
3701 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
3702 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
3705 *) Remove buggy and incomplete DH cert support from
3706 ssl/ssl_rsa.c and ssl/s3_both.c
3709 *) Use SHA-1 instead of MD5 as the default digest algorithm for
3710 the apps/openssl applications.
3713 *) Compile clean with "-Wall -Wmissing-prototypes
3714 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
3715 DEBUG_SAFESTACK must also be set.
3718 *) Change ./Configure so that certain algorithms can be disabled by default.
3719 The new counterpiece to "no-xxx" is "enable-xxx".
3721 The patented RC5 and MDC2 algorithms will now be disabled unless
3722 "enable-rc5" and "enable-mdc2", respectively, are specified.
3724 (IDEA remains enabled despite being patented. This is because IDEA
3725 is frequently required for interoperability, and there is no license
3726 fee for non-commercial use. As before, "no-idea" can be used to
3727 avoid this algorithm.)
3731 *) Add processing of proxy certificates (see RFC 3820). This work was
3732 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3733 EGEE (Enabling Grids for E-science in Europe).
3736 *) RC4 performance overhaul on modern architectures/implementations, such
3737 as Intel P4, IA-64 and AMD64.
3740 *) New utility extract-section.pl. This can be used specify an alternative
3741 section number in a pod file instead of having to treat each file as
3742 a separate case in Makefile. This can be done by adding two lines to the
3745 =for comment openssl_section:XXX
3747 The blank line is mandatory.
3751 *) New arguments -certform, -keyform and -pass for s_client and s_server
3752 to allow alternative format key and certificate files and passphrase
3756 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3757 update associated structures and add various utility functions.
3759 Add new policy related verify parameters, include policy checking in
3760 standard verify code. Enhance 'smime' application with extra parameters
3761 to support policy checking and print out.
3764 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3765 Nehemiah processors. These extensions support AES encryption in hardware
3766 as well as RNG (though RNG support is currently disabled).
3767 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3769 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3772 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3773 [Andy Polyakov and a number of other people]
3775 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3776 implementation contributed by IBM.
3777 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3779 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3780 exponent rather than 'unsigned long'. There is a corresponding change to
3781 the new 'rsa_keygen' element of the RSA_METHOD structure.
3782 [Jelte Jansen, Geoff Thorpe]
3784 *) Functionality for creating the initial serial number file is now
3785 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3787 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3788 number file to 1, which is bound to cause problems. To avoid
3789 the problems while respecting compatibility between different 0.9.7
3790 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3791 CA.pl for serial number initialization. With the new release 0.9.8,
3792 we can fix the problem directly in the 'ca' utility.)
3795 *) Reduced header interdepencies by declaring more opaque objects in
3796 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3797 give fewer recursive includes, which could break lazy source code - so
3798 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3799 developers should define this symbol when building and using openssl to
3800 ensure they track the recommended behaviour, interfaces, [etc], but
3801 backwards-compatible behaviour prevails when this isn't defined.
3804 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3807 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3808 This will generate a random key of the appropriate length based on the
3809 cipher context. The EVP_CIPHER can provide its own random key generation
3810 routine to support keys of a specific form. This is used in the des and
3811 3des routines to generate a key of the correct parity. Update S/MIME
3812 code to use new functions and hence generate correct parity DES keys.
3813 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3814 valid (weak or incorrect parity).
3817 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3818 as looking them up. This is useful when the verified structure may contain
3819 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3820 present unless the new PKCS7_NO_CRL flag is asserted.
3823 *) Extend ASN1 oid configuration module. It now additionally accepts the
3826 shortName = some long name, 1.2.3.4
3829 *) Reimplemented the BN_CTX implementation. There is now no more static
3830 limitation on the number of variables it can handle nor the depth of the
3831 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3832 information can now expand as required, and rather than having a single
3833 static array of bignums, BN_CTX now uses a linked-list of such arrays
3834 allowing it to expand on demand whilst maintaining the usefulness of
3835 BN_CTX's "bundling".
3838 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3839 to allow all RSA operations to function using a single BN_CTX.
3842 *) Preliminary support for certificate policy evaluation and checking. This
3843 is initially intended to pass the tests outlined in "Conformance Testing
3844 of Relying Party Client Certificate Path Processing Logic" v1.07.
3847 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3848 remained unused and not that useful. A variety of other little bignum
3849 tweaks and fixes have also been made continuing on from the audit (see
3853 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3854 associated ASN1, EVP and SSL functions and old ASN1 macros.
3857 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3858 and this should never fail. So the return value from the use of
3859 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3860 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3863 *) BN_CTX_get() should return zero-valued bignums, providing the same
3864 initialised value as BN_new().
3865 [Geoff Thorpe, suggested by Ulf Möller]
3867 *) Support for inhibitAnyPolicy certificate extension.
3870 *) An audit of the BIGNUM code is underway, for which debugging code is
3871 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3872 is considered valid when processing BIGNUMs, and causes execution to
3873 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3874 further steps are taken to deliberately pollute unused data in BIGNUM
3875 structures to try and expose faulty code further on. For now, openssl will
3876 (in its default mode of operation) continue to tolerate the inconsistent
3877 forms that it has tolerated in the past, but authors and packagers should
3878 consider trying openssl and their own applications when compiled with
3879 these debugging symbols defined. It will help highlight potential bugs in
3880 their own code, and will improve the test coverage for OpenSSL itself. At
3881 some point, these tighter rules will become openssl's default to improve
3882 maintainability, though the assert()s and other overheads will remain only
3883 in debugging configurations. See bn.h for more details.
3884 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3886 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3887 that can only be obtained through BN_CTX_new() (which implicitly
3888 initialises it). The presence of this function only made it possible
3889 to overwrite an existing structure (and cause memory leaks).
3892 *) Because of the callback-based approach for implementing LHASH as a
3893 template type, lh_insert() adds opaque objects to hash-tables and
3894 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3895 to clean up those corresponding objects before destroying the hash table
3896 (and losing the object pointers). So some over-zealous constifications in
3897 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3898 objects as "const" and the lh_doall[_arg] callback wrappers are not
3899 prototyped to have "const" restrictions on the object pointers they are
3900 given (and so aren't required to cast them away any more).
3903 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3904 (speed) prefers to use its own implementation. The two implementations
3905 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3906 its object type properly exposed (MS_TM) instead of casting to/from "char
3907 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3908 aren't necessarily the greatest nomenclatures - but this is what was used
3909 internally to the implementation so I've used that for now.
3912 *) Ensure that deprecated functions do not get compiled when
3913 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3914 the self-tests were still using deprecated key-generation functions so
3915 these have been updated also.
3918 *) Reorganise PKCS#7 code to separate the digest location functionality
3919 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
3920 New function PKCS7_set_digest() to set the digest type for PKCS#7
3921 digestedData type. Add additional code to correctly generate the
3922 digestedData type and add support for this type in PKCS7 initialization
3926 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3927 structure of type "other".
3930 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3931 sure the loop does correctly stop and breaking ("division by zero")
3932 modulus operations are not performed. The (pre-generated) prime
3933 table crypto/bn/bn_prime.h was already correct, but it could not be
3934 re-generated on some platforms because of the "division by zero"
3935 situation in the script.
3936 [Ralf S. Engelschall]
3938 *) Update support for ECC-based TLS ciphersuites according to
3939 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3940 SHA-1 now is only used for "small" curves (where the
3941 representation of a field element takes up to 24 bytes); for
3942 larger curves, the field element resulting from ECDH is directly
3943 used as premaster secret.
3944 [Douglas Stebila (Sun Microsystems Laboratories)]
3946 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3947 curve secp160r1 to the tests.
3948 [Douglas Stebila (Sun Microsystems Laboratories)]
3950 *) Add the possibility to load symbols globally with DSO.
3951 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3953 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3954 control of the error stack.
3957 *) Add support for STORE in ENGINE.
3960 *) Add the STORE type. The intention is to provide a common interface
3961 to certificate and key stores, be they simple file-based stores, or
3962 HSM-type store, or LDAP stores, or...
3963 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3966 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3967 pass a list of arguments to any function as well as provide a way
3968 for a function to pass data back to the caller.
3971 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3972 works like BUF_strdup() but can be used to duplicate a portion of
3973 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3977 *) Add the function sk_find_ex() which works like sk_find(), but will
3978 return an index to an element even if an exact match couldn't be
3979 found. The index is guaranteed to point at the element where the
3980 searched-for key would be inserted to preserve sorting order.
3983 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3984 takes an extra flags argument for optional functionality. Currently,
3985 the following flags are defined:
3987 OBJ_BSEARCH_VALUE_ON_NOMATCH
3988 This one gets OBJ_bsearch_ex() to return a pointer to the first
3989 element where the comparing function returns a negative or zero
3992 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3993 This one gets OBJ_bsearch_ex() to return a pointer to the first
3994 element where the comparing function returns zero. This is useful
3995 if there are more than one element where the comparing function
3999 *) Make it possible to create self-signed certificates with 'openssl ca'
4000 in such a way that the self-signed certificate becomes part of the
4001 CA database and uses the same mechanisms for serial number generation
4002 as all other certificate signing. The new flag '-selfsign' enables
4003 this functionality. Adapt CA.sh and CA.pl.in.
4006 *) Add functionality to check the public key of a certificate request
4007 against a given private. This is useful to check that a certificate
4008 request can be signed by that key (self-signing).
4011 *) Make it possible to have multiple active certificates with the same
4012 subject in the CA index file. This is done only if the keyword
4013 'unique_subject' is set to 'no' in the main CA section (default
4014 if 'CA_default') of the configuration file. The value is saved
4015 with the database itself in a separate index attribute file,
4016 named like the index file with '.attr' appended to the name.
4019 *) Generate muti valued AVAs using '+' notation in config files for
4023 *) Support for nameConstraints certificate extension.
4026 *) Support for policyConstraints certificate extension.
4029 *) Support for policyMappings certificate extension.
4032 *) Make sure the default DSA_METHOD implementation only uses its
4033 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
4034 and change its own handlers to be NULL so as to remove unnecessary
4035 indirection. This lets alternative implementations fallback to the
4036 default implementation more easily.
4039 *) Support for directoryName in GeneralName related extensions
4043 *) Make it possible to link applications using Makefile.shared.
4044 Make that possible even when linking against static libraries!
4047 *) Support for single pass processing for S/MIME signing. This now
4048 means that S/MIME signing can be done from a pipe, in addition
4049 cleartext signing (multipart/signed type) is effectively streaming
4050 and the signed data does not need to be all held in memory.
4052 This is done with a new flag PKCS7_STREAM. When this flag is set
4053 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
4054 is done after the data is output (and digests calculated) in
4055 SMIME_write_PKCS7().
4058 *) Add full support for -rpath/-R, both in shared libraries and
4059 applications, at least on the platforms where it's known how
4063 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
4064 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
4065 will now compute a table of multiples of the generator that
4066 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
4067 faster (notably in the case of a single point multiplication,
4068 scalar * generator).
4069 [Nils Larsch, Bodo Moeller]
4071 *) IPv6 support for certificate extensions. The various extensions
4072 which use the IP:a.b.c.d can now take IPv6 addresses using the
4073 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
4077 *) Added an ENGINE that implements RSA by performing private key
4078 exponentiations with the GMP library. The conversions to and from
4079 GMP's mpz_t format aren't optimised nor are any montgomery forms
4080 cached, and on x86 it appears OpenSSL's own performance has caught up.
4081 However there are likely to be other architectures where GMP could
4082 provide a boost. This ENGINE is not built in by default, but it can be
4083 specified at Configure time and should be accompanied by the necessary
4084 linker additions, eg;
4085 ./config -DOPENSSL_USE_GMP -lgmp
4088 *) "openssl engine" will not display ENGINE/DSO load failure errors when
4089 testing availability of engines with "-t" - the old behaviour is
4090 produced by increasing the feature's verbosity with "-tt".
4093 *) ECDSA routines: under certain error conditions uninitialized BN objects
4094 could be freed. Solution: make sure initialization is performed early
4095 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
4099 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
4100 and DH_METHOD (eg. by ENGINE implementations) to override the normal
4101 software implementations. For DSA and DH, parameter generation can
4102 also be overriden by providing the appropriate method callbacks.
4105 *) Change the "progress" mechanism used in key-generation and
4106 primality testing to functions that take a new BN_GENCB pointer in
4107 place of callback/argument pairs. The new API functions have "_ex"
4108 postfixes and the older functions are reimplemented as wrappers for
4109 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
4110 declarations of the old functions to help (graceful) attempts to
4111 migrate to the new functions. Also, the new key-generation API
4112 functions operate on a caller-supplied key-structure and return
4113 success/failure rather than returning a key or NULL - this is to
4114 help make "keygen" another member function of RSA_METHOD etc.
4116 Example for using the new callback interface:
4118 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
4122 BN_GENCB_set(&my_cb, my_callback, my_arg);
4124 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
4125 /* For the meaning of a, b in calls to my_callback(), see the
4126 * documentation of the function that calls the callback.
4127 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
4128 * my_callback should return 1 if it wants BN_is_prime_ex()
4129 * to continue, or 0 to stop.
4134 *) Change the ZLIB compression method to be stateful, and make it
4135 available to TLS with the number defined in
4136 draft-ietf-tls-compression-04.txt.
4139 *) Add the ASN.1 structures and functions for CertificatePair, which
4140 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
4142 CertificatePair ::= SEQUENCE {
4143 forward [0] Certificate OPTIONAL,
4144 reverse [1] Certificate OPTIONAL,
4145 -- at least one of the pair shall be present -- }
4147 Also implement the PEM functions to read and write certificate
4148 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
4150 This needed to be defined, mostly for the sake of the LDAP
4151 attribute crossCertificatePair, but may prove useful elsewhere as
4155 *) Make it possible to inhibit symlinking of shared libraries in
4156 Makefile.shared, for Cygwin's sake.
4159 *) Extend the BIGNUM API by creating a function
4160 void BN_set_negative(BIGNUM *a, int neg);
4161 and a macro that behave like
4162 int BN_is_negative(const BIGNUM *a);
4164 to avoid the need to access 'a->neg' directly in applications.
4167 *) Implement fast modular reduction for pseudo-Mersenne primes
4168 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
4169 EC_GROUP_new_curve_GFp() will now automatically use this
4171 [Nils Larsch <nla@trustcenter.de>]
4173 *) Add new lock type (CRYPTO_LOCK_BN).
4176 *) Change the ENGINE framework to automatically load engines
4177 dynamically from specific directories unless they could be
4178 found to already be built in or loaded. Move all the
4179 current engines except for the cryptodev one to a new
4181 The engines in engines/ are built as shared libraries if
4182 the "shared" options was given to ./Configure or ./config.
4183 Otherwise, they are inserted in libcrypto.a.
4184 /usr/local/ssl/engines is the default directory for dynamic
4185 engines, but that can be overriden at configure time through
4186 the usual use of --prefix and/or --openssldir, and at run
4187 time with the environment variable OPENSSL_ENGINES.
4188 [Geoff Thorpe and Richard Levitte]
4190 *) Add Makefile.shared, a helper makefile to build shared
4191 libraries. Adapt Makefile.org.
4194 *) Add version info to Win32 DLLs.
4195 [Peter 'Luna' Runestig" <peter@runestig.com>]
4197 *) Add new 'medium level' PKCS#12 API. Certificates and keys
4198 can be added using this API to created arbitrary PKCS#12
4199 files while avoiding the low level API.
4201 New options to PKCS12_create(), key or cert can be NULL and
4202 will then be omitted from the output file. The encryption
4203 algorithm NIDs can be set to -1 for no encryption, the mac
4204 iteration count can be set to 0 to omit the mac.
4206 Enhance pkcs12 utility by making the -nokeys and -nocerts
4207 options work when creating a PKCS#12 file. New option -nomac
4208 to omit the mac, NONE can be set for an encryption algorithm.
4209 New code is modified to use the enhanced PKCS12_create()
4210 instead of the low level API.
4213 *) Extend ASN1 encoder to support indefinite length constructed
4214 encoding. This can output sequences tags and octet strings in
4215 this form. Modify pk7_asn1.c to support indefinite length
4216 encoding. This is experimental and needs additional code to
4217 be useful, such as an ASN1 bio and some enhanced streaming
4220 Extend template encode functionality so that tagging is passed
4221 down to the template encoder.
4224 *) Let 'openssl req' fail if an argument to '-newkey' is not
4225 recognized instead of using RSA as a default.
4228 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4229 As these are not official, they are not included in "ALL";
4230 the "ECCdraft" ciphersuite group alias can be used to select them.
4231 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4233 *) Add ECDH engine support.
4234 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4236 *) Add ECDH in new directory crypto/ecdh/.
4237 [Douglas Stebila (Sun Microsystems Laboratories)]
4239 *) Let BN_rand_range() abort with an error after 100 iterations
4240 without success (which indicates a broken PRNG).
4243 *) Change BN_mod_sqrt() so that it verifies that the input value
4244 is really the square of the return value. (Previously,
4245 BN_mod_sqrt would show GIGO behaviour.)
4248 *) Add named elliptic curves over binary fields from X9.62, SECG,
4249 and WAP/WTLS; add OIDs that were still missing.
4251 [Sheueling Chang Shantz and Douglas Stebila
4252 (Sun Microsystems Laboratories)]
4254 *) Extend the EC library for elliptic curves over binary fields
4255 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4258 EC_GF2m_simple_method
4262 EC_GROUP_new_curve_GF2m
4263 EC_GROUP_set_curve_GF2m
4264 EC_GROUP_get_curve_GF2m
4265 EC_POINT_set_affine_coordinates_GF2m
4266 EC_POINT_get_affine_coordinates_GF2m
4267 EC_POINT_set_compressed_coordinates_GF2m
4269 Point compression for binary fields is disabled by default for
4270 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4273 As binary polynomials are represented as BIGNUMs, various members
4274 of the EC_GROUP and EC_POINT data structures can be shared
4275 between the implementations for prime fields and binary fields;
4276 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4277 are essentially identical to their ..._GFp counterparts.
4278 (For simplicity, the '..._GFp' prefix has been dropped from
4279 various internal method names.)
4281 An internal 'field_div' method (similar to 'field_mul' and
4282 'field_sqr') has been added; this is used only for binary fields.
4284 [Sheueling Chang Shantz and Douglas Stebila
4285 (Sun Microsystems Laboratories)]
4287 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4288 through methods ('mul', 'precompute_mult').
4290 The generic implementations (now internally called 'ec_wNAF_mul'
4291 and 'ec_wNAF_precomputed_mult') remain the default if these
4292 methods are undefined.
4294 [Sheueling Chang Shantz and Douglas Stebila
4295 (Sun Microsystems Laboratories)]
4297 *) New function EC_GROUP_get_degree, which is defined through
4298 EC_METHOD. For curves over prime fields, this returns the bit
4299 length of the modulus.
4301 [Sheueling Chang Shantz and Douglas Stebila
4302 (Sun Microsystems Laboratories)]
4304 *) New functions EC_GROUP_dup, EC_POINT_dup.
4305 (These simply call ..._new and ..._copy).
4307 [Sheueling Chang Shantz and Douglas Stebila
4308 (Sun Microsystems Laboratories)]
4310 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4311 Polynomials are represented as BIGNUMs (where the sign bit is not
4312 used) in the following functions [macros]:
4315 BN_GF2m_sub [= BN_GF2m_add]
4316 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4317 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4318 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4320 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4321 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4322 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4323 BN_GF2m_cmp [= BN_ucmp]
4325 (Note that only the 'mod' functions are actually for fields GF(2^m).
4326 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4328 For some functions, an the irreducible polynomial defining a
4329 field can be given as an 'unsigned int[]' with strictly
4330 decreasing elements giving the indices of those bits that are set;
4331 i.e., p[] represents the polynomial
4332 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4334 p[0] > p[1] > ... > p[k] = 0.
4335 This applies to the following functions:
4340 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4341 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4343 BN_GF2m_mod_sqrt_arr
4344 BN_GF2m_mod_solve_quad_arr
4348 Conversion can be performed by the following functions:
4353 bntest.c has additional tests for binary polynomial arithmetic.
4355 Two implementations for BN_GF2m_mod_div() are available.
4356 The default algorithm simply uses BN_GF2m_mod_inv() and
4357 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4358 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4359 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4361 [Sheueling Chang Shantz and Douglas Stebila
4362 (Sun Microsystems Laboratories)]
4364 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4365 functionality is disabled at compile-time.
4366 [Douglas Stebila <douglas.stebila@sun.com>]
4368 *) Change default behaviour of 'openssl asn1parse' so that more
4369 information is visible when viewing, e.g., a certificate:
4371 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4372 mode the content of non-printable OCTET STRINGs is output in a
4373 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4374 avoid the appearance of a printable string.
4375 [Nils Larsch <nla@trustcenter.de>]
4377 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4379 EC_GROUP_set_asn1_flag()
4380 EC_GROUP_get_asn1_flag()
4381 EC_GROUP_set_point_conversion_form()
4382 EC_GROUP_get_point_conversion_form()
4383 These control ASN1 encoding details:
4384 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4385 has been set to OPENSSL_EC_NAMED_CURVE.
4386 - Points are encoded in uncompressed form by default; options for
4387 asn1_for are as for point2oct, namely
4388 POINT_CONVERSION_COMPRESSED
4389 POINT_CONVERSION_UNCOMPRESSED
4390 POINT_CONVERSION_HYBRID
4392 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4395 EC_GROUP_get0_seed()
4396 EC_GROUP_get_seed_len()
4397 This is used only for ASN1 purposes (so far).
4398 [Nils Larsch <nla@trustcenter.de>]
4400 *) Add 'field_type' member to EC_METHOD, which holds the NID
4401 of the appropriate field type OID. The new function
4402 EC_METHOD_get_field_type() returns this value.
4403 [Nils Larsch <nla@trustcenter.de>]
4408 EC_POINT_point2hex()
4409 EC_POINT_hex2point()
4410 providing useful interfaces to EC_POINT_point2oct() and
4411 EC_POINT_oct2point().
4412 [Nils Larsch <nla@trustcenter.de>]
4414 *) Change internals of the EC library so that the functions
4415 EC_GROUP_set_generator()
4416 EC_GROUP_get_generator()
4417 EC_GROUP_get_order()
4418 EC_GROUP_get_cofactor()
4419 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4420 to methods, which would lead to unnecessary code duplication when
4421 adding different types of curves.
4422 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4424 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4425 arithmetic, and such that modified wNAFs are generated
4426 (which avoid length expansion in many cases).
4429 *) Add a function EC_GROUP_check_discriminant() (defined via
4430 EC_METHOD) that verifies that the curve discriminant is non-zero.
4432 Add a function EC_GROUP_check() that makes some sanity tests
4433 on a EC_GROUP, its generator and order. This includes
4434 EC_GROUP_check_discriminant().
4435 [Nils Larsch <nla@trustcenter.de>]
4437 *) Add ECDSA in new directory crypto/ecdsa/.
4439 Add applications 'openssl ecparam' and 'openssl ecdsa'
4440 (these are based on 'openssl dsaparam' and 'openssl dsa').
4442 ECDSA support is also included in various other files across the
4443 library. Most notably,
4444 - 'openssl req' now has a '-newkey ecdsa:file' option;
4445 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4446 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4447 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4448 them suitable for ECDSA where domain parameters must be
4449 extracted before the specific public key;
4450 - ECDSA engine support has been added.
4451 [Nils Larsch <nla@trustcenter.de>]
4453 *) Include some named elliptic curves, and add OIDs from X9.62,
4454 SECG, and WAP/WTLS. Each curve can be obtained from the new
4456 EC_GROUP_new_by_curve_name(),
4457 and the list of available named curves can be obtained with
4458 EC_get_builtin_curves().
4459 Also add a 'curve_name' member to EC_GROUP objects, which can be
4461 EC_GROUP_set_curve_name()
4462 EC_GROUP_get_curve_name()
4463 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4465 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4466 was actually never needed) and in BN_mul(). The removal in BN_mul()
4467 required a small change in bn_mul_part_recursive() and the addition
4468 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4469 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4470 bn_sub_words() and bn_add_words() except they take arrays with
4474 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4476 *) Cleanse PEM buffers before freeing them since they may contain
4478 [Benjamin Bennett <ben@psc.edu>]
4480 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4481 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4482 authentication-only ciphersuites.
4485 *) Since AES128 and AES256 share a single mask bit in the logic of
4486 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4487 kludge to work properly if AES128 is available and AES256 isn't.
4490 *) Expand security boundary to match 1.1.1 module.
4493 *) Remove redundant features: hash file source, editing of test vectors
4494 modify fipsld to use external fips_premain.c signature.
4497 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4498 run algorithm test programs.
4501 *) Make algorithm test programs more tolerant of whitespace.
4504 *) Have SSL/TLS server implementation tolerate "mismatched" record
4505 protocol version while receiving ClientHello even if the
4506 ClientHello is fragmented. (The server can't insist on the
4507 particular protocol version it has chosen before the ServerHello
4508 message has informed the client about his choice.)
4511 *) Load error codes if they are not already present instead of using a
4512 static variable. This allows them to be cleanly unloaded and reloaded.
4515 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4517 *) Introduce limits to prevent malicious keys being able to
4518 cause a denial of service. (CVE-2006-2940)
4519 [Steve Henson, Bodo Moeller]
4521 *) Fix ASN.1 parsing of certain invalid structures that can result
4522 in a denial of service. (CVE-2006-2937) [Steve Henson]
4524 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4525 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4527 *) Fix SSL client code which could crash if connecting to a
4528 malicious SSLv2 server. (CVE-2006-4343)
4529 [Tavis Ormandy and Will Drewry, Google Security Team]
4531 *) Change ciphersuite string processing so that an explicit
4532 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4533 will no longer include "AES128-SHA"), and any other similar
4534 ciphersuite (same bitmap) from *other* protocol versions (so that
4535 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4536 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4537 changes from 0.9.8b and 0.9.8d.
4540 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4542 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4543 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4545 *) Change the Unix randomness entropy gathering to use poll() when
4546 possible instead of select(), since the latter has some
4547 undesirable limitations.
4548 [Darryl Miles via Richard Levitte and Bodo Moeller]
4550 *) Disable rogue ciphersuites:
4552 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4553 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4554 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4556 The latter two were purportedly from
4557 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4560 Also deactive the remaining ciphersuites from
4561 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4562 unofficial, and the ID has long expired.
4565 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4566 dual-core machines) and other potential thread-safety issues.
4569 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4571 *) Adapt fipsld and the build system to link against the validated FIPS
4572 module in FIPS mode.
4575 *) Fixes for VC++ 2005 build under Windows.
4578 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4579 from a Windows bash shell such as MSYS. It is autodetected from the
4580 "config" script when run from a VC++ environment. Modify standard VC++
4581 build to use fipscanister.o from the GNU make build.
4584 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4586 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4587 The value now differs depending on if you build for FIPS or not.
4588 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4589 safely run with a non-FIPSed libcrypto, as it may crash because of
4590 the difference induced by this change.
4593 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4595 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4596 (part of SSL_OP_ALL). This option used to disable the
4597 countermeasure against man-in-the-middle protocol-version
4598 rollback in the SSL 2.0 server implementation, which is a bad
4599 idea. (CVE-2005-2969)
4601 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4602 for Information Security, National Institute of Advanced Industrial
4603 Science and Technology [AIST], Japan)]
4605 *) Minimal support for X9.31 signatures and PSS padding modes. This is
4606 mainly for FIPS compliance and not fully integrated at this stage.
4609 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
4610 the exponentiation using a fixed-length exponent. (Otherwise,
4611 the information leaked through timing could expose the secret key
4612 after many signatures; cf. Bleichenbacher's attack on DSA with
4616 *) Make a new fixed-window mod_exp implementation the default for
4617 RSA, DSA, and DH private-key operations so that the sequence of
4618 squares and multiplies and the memory access pattern are
4619 independent of the particular secret key. This will mitigate
4620 cache-timing and potential related attacks.
4622 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
4623 and this is automatically used by BN_mod_exp_mont() if the new flag
4624 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
4625 will use this BN flag for private exponents unless the flag
4626 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
4627 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
4629 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
4631 *) Change the client implementation for SSLv23_method() and
4632 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
4633 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
4634 (Previously, the SSL 2.0 backwards compatible Client Hello
4635 message format would be used even with SSL_OP_NO_SSLv2.)
4638 *) Add support for smime-type MIME parameter in S/MIME messages which some
4642 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
4643 a threadsafe manner. Modify rsa code to use new function and add calls
4644 to dsa and dh code (which had race conditions before).
4647 *) Include the fixed error library code in the C error file definitions
4648 instead of fixing them up at runtime. This keeps the error code
4649 structures constant.
4652 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
4654 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
4657 *) Fixes for newer kerberos headers. NB: the casts are needed because
4658 the 'length' field is signed on one version and unsigned on another
4659 with no (?) obvious way to tell the difference, without these VC++
4660 complains. Also the "definition" of FAR (blank) is no longer included
4661 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
4662 some needed definitions.
4665 *) Undo Cygwin change.
4668 *) Added support for proxy certificates according to RFC 3820.
4669 Because they may be a security thread to unaware applications,
4670 they must be explicitely allowed in run-time. See
4671 docs/HOWTO/proxy_certificates.txt for further information.
4674 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
4676 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
4677 server and client random values. Previously
4678 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
4679 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
4681 This change has negligible security impact because:
4683 1. Server and client random values still have 24 bytes of pseudo random
4686 2. Server and client random values are sent in the clear in the initial
4689 3. The master secret is derived using the premaster secret (48 bytes in
4690 size for static RSA ciphersuites) as well as client server and random
4693 The OpenSSL team would like to thank the UK NISCC for bringing this issue
4696 [Stephen Henson, reported by UK NISCC]
4698 *) Use Windows randomness collection on Cygwin.
4701 *) Fix hang in EGD/PRNGD query when communication socket is closed
4702 prematurely by EGD/PRNGD.
4703 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4705 *) Prompt for pass phrases when appropriate for PKCS12 input format.
4708 *) Back-port of selected performance improvements from development
4709 branch, as well as improved support for PowerPC platforms.
4712 *) Add lots of checks for memory allocation failure, error codes to indicate
4713 failure and freeing up memory if a failure occurs.
4714 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
4716 *) Add new -passin argument to dgst.
4719 *) Perform some character comparisons of different types in X509_NAME_cmp:
4720 this is needed for some certificates that reencode DNs into UTF8Strings
4721 (in violation of RFC3280) and can't or wont issue name rollover
4725 *) Make an explicit check during certificate validation to see that
4726 the CA setting in each certificate on the chain is correct. As a
4727 side effect always do the following basic checks on extensions,
4728 not just when there's an associated purpose to the check:
4730 - if there is an unhandled critical extension (unless the user
4731 has chosen to ignore this fault)
4732 - if the path length has been exceeded (if one is set at all)
4733 - that certain extensions fit the associated purpose (if one has
4737 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4739 *) Avoid a race condition when CRLs are checked in a multi threaded
4740 environment. This would happen due to the reordering of the revoked
4741 entries during signature checking and serial number lookup. Now the
4742 encoding is cached and the serial number sort performed under a lock.
4743 Add new STACK function sk_is_sorted().
4746 *) Add Delta CRL to the extension code.
4749 *) Various fixes to s3_pkt.c so alerts are sent properly.
4750 [David Holmes <d.holmes@f5.com>]
4752 *) Reduce the chances of duplicate issuer name and serial numbers (in
4753 violation of RFC3280) using the OpenSSL certificate creation utilities.
4754 This is done by creating a random 64 bit value for the initial serial
4755 number when a serial number file is created or when a self signed
4756 certificate is created using 'openssl req -x509'. The initial serial
4757 number file is created using 'openssl x509 -next_serial' in CA.pl
4758 rather than being initialized to 1.
4761 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4763 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4764 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4765 [Joe Orton, Steve Henson]
4767 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4769 [Joe Orton, Steve Henson]
4771 *) Make it possible to have multiple active certificates with the same
4772 subject in the CA index file. This is done only if the keyword
4773 'unique_subject' is set to 'no' in the main CA section (default
4774 if 'CA_default') of the configuration file. The value is saved
4775 with the database itself in a separate index attribute file,
4776 named like the index file with '.attr' appended to the name.
4779 *) X509 verify fixes. Disable broken certificate workarounds when
4780 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4781 keyUsage extension present. Don't accept CRLs with unhandled critical
4782 extensions: since verify currently doesn't process CRL extensions this
4783 rejects a CRL with *any* critical extensions. Add new verify error codes
4787 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4788 A clarification of RFC2560 will require the use of OCTET STRINGs and
4789 some implementations cannot handle the current raw format. Since OpenSSL
4790 copies and compares OCSP nonces as opaque blobs without any attempt at
4791 parsing them this should not create any compatibility issues.
4794 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4795 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4796 this HMAC (and other) operations are several times slower than OpenSSL
4800 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4801 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4803 *) Use the correct content when signing type "other".
4806 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4808 *) Fix various bugs revealed by running the NISCC test suite:
4810 Stop out of bounds reads in the ASN1 code when presented with
4811 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4813 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4815 If verify callback ignores invalid public key errors don't try to check
4816 certificate signature with the NULL public key.
4820 *) New -ignore_err option in ocsp application to stop the server
4821 exiting on the first error in a request.
4824 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4825 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4829 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4830 extra data after the compression methods not only for TLS 1.0
4831 but also for SSL 3.0 (as required by the specification).
4832 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4834 *) Change X509_certificate_type() to mark the key as exported/exportable
4835 when it's 512 *bits* long, not 512 bytes.
4838 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4839 blocks during encryption.
4842 *) Various fixes to base64 BIO and non blocking I/O. On write
4843 flushes were not handled properly if the BIO retried. On read
4844 data was not being buffered properly and had various logic bugs.
4845 This also affects blocking I/O when the data being decoded is a
4849 *) Various S/MIME bugfixes and compatibility changes:
4850 output correct application/pkcs7 MIME type if
4851 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4852 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4853 of files as .eml work). Correctly handle very long lines in MIME
4857 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4859 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4860 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4861 a protocol version number mismatch like a decryption error
4862 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4865 *) Turn on RSA blinding by default in the default implementation
4866 to avoid a timing attack. Applications that don't want it can call
4867 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4868 They would be ill-advised to do so in most cases.
4869 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4871 *) Change RSA blinding code so that it works when the PRNG is not
4872 seeded (in this case, the secret RSA exponent is abused as
4873 an unpredictable seed -- if it is not unpredictable, there
4874 is no point in blinding anyway). Make RSA blinding thread-safe
4875 by remembering the creator's thread ID in rsa->blinding and
4876 having all other threads use local one-time blinding factors
4877 (this requires more computation than sharing rsa->blinding, but
4878 avoids excessive locking; and if an RSA object is not shared
4879 between threads, blinding will still be very fast).
4882 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4883 ENGINE as defaults for all supported algorithms irrespective of
4884 the 'flags' parameter. 'flags' is now honoured, so applications
4885 should make sure they are passing it correctly.
4888 *) Target "mingw" now allows native Windows code to be generated in
4889 the Cygwin environment as well as with the MinGW compiler.
4892 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4894 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4895 via timing by performing a MAC computation even if incorrect
4896 block cipher padding has been found. This is a countermeasure
4897 against active attacks where the attacker has to distinguish
4898 between bad padding and a MAC verification error. (CVE-2003-0078)
4900 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4901 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4902 Martin Vuagnoux (EPFL, Ilion)]
4904 *) Make the no-err option work as intended. The intention with no-err
4905 is not to have the whole error stack handling routines removed from
4906 libcrypto, it's only intended to remove all the function name and
4907 reason texts, thereby removing some of the footprint that may not
4908 be interesting if those errors aren't displayed anyway.
4910 NOTE: it's still possible for any application or module to have it's
4911 own set of error texts inserted. The routines are there, just not
4912 used by default when no-err is given.
4915 *) Add support for FreeBSD on IA64.
4916 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4918 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4919 Kerberos function mit_des_cbc_cksum(). Before this change,
4920 the value returned by DES_cbc_cksum() was like the one from
4921 mit_des_cbc_cksum(), except the bytes were swapped.
4922 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4924 *) Allow an application to disable the automatic SSL chain building.
4925 Before this a rather primitive chain build was always performed in
4926 ssl3_output_cert_chain(): an application had no way to send the
4927 correct chain if the automatic operation produced an incorrect result.
4929 Now the chain builder is disabled if either:
4931 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4933 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4935 The reasoning behind this is that an application would not want the
4936 auto chain building to take place if extra chain certificates are
4937 present and it might also want a means of sending no additional
4938 certificates (for example the chain has two certificates and the
4942 *) Add the possibility to build without the ENGINE framework.
4943 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4945 *) Under Win32 gmtime() can return NULL: check return value in
4946 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4949 *) DSA routines: under certain error conditions uninitialized BN objects
4950 could be freed. Solution: make sure initialization is performed early
4951 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4952 Nils Larsch <nla@trustcenter.de> via PR#459)
4955 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4956 checked on reconnect on the client side, therefore session resumption
4957 could still fail with a "ssl session id is different" error. This
4958 behaviour is masked when SSL_OP_ALL is used due to
4959 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4960 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4961 followup to PR #377.
4964 *) IA-32 assembler support enhancements: unified ELF targets, support
4965 for SCO/Caldera platforms, fix for Cygwin shared build.
4968 *) Add support for FreeBSD on sparc64. As a consequence, support for
4969 FreeBSD on non-x86 processors is separate from x86 processors on
4970 the config script, much like the NetBSD support.
4971 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4973 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4975 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4978 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4979 code (06) was taken as the first octet of the session ID and the last
4980 octet was ignored consequently. As a result SSLv2 client side session
4981 caching could not have worked due to the session ID mismatch between
4983 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4987 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4988 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4992 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4993 seems that in spite of existing for more than a year, many application
4994 author have done nothing to provide the necessary callbacks, which
4995 means that this particular engine will not work properly anywhere.
4996 This is a very unfortunate situation which forces us, in the name
4997 of usability, to give the hw_ncipher.c a static lock, which is part
4999 NOTE: This is for the 0.9.7 series ONLY. This hack will never
5000 appear in 0.9.8 or later. We EXPECT application authors to have
5001 dealt properly with this when 0.9.8 is released (unless we actually
5002 make such changes in the libcrypto locking code that changes will
5003 have to be made anyway).
5006 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
5007 octets have been read, EOF or an error occurs. Without this change
5008 some truncated ASN1 structures will not produce an error.
5011 *) Disable Heimdal support, since it hasn't been fully implemented.
5012 Still give the possibility to force the use of Heimdal, but with
5013 warnings and a request that patches get sent to openssl-dev.
5016 *) Add the VC-CE target, introduce the WINCE sysname, and add
5017 INSTALL.WCE and appropriate conditionals to make it build.
5018 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5020 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
5021 cygssl-x.y.z.dll, where x, y and z are the major, minor and
5022 edit numbers of the version.
5023 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5025 *) Introduce safe string copy and catenation functions
5026 (BUF_strlcpy() and BUF_strlcat()).
5027 [Ben Laurie (CHATS) and Richard Levitte]
5029 *) Avoid using fixed-size buffers for one-line DNs.
5030 [Ben Laurie (CHATS)]
5032 *) Add BUF_MEM_grow_clean() to avoid information leakage when
5033 resizing buffers containing secrets, and use where appropriate.
5034 [Ben Laurie (CHATS)]
5036 *) Avoid using fixed size buffers for configuration file location.
5037 [Ben Laurie (CHATS)]
5039 *) Avoid filename truncation for various CA files.
5040 [Ben Laurie (CHATS)]
5042 *) Use sizeof in preference to magic numbers.
5043 [Ben Laurie (CHATS)]
5045 *) Avoid filename truncation in cert requests.
5046 [Ben Laurie (CHATS)]
5048 *) Add assertions to check for (supposedly impossible) buffer
5050 [Ben Laurie (CHATS)]
5052 *) Don't cache truncated DNS entries in the local cache (this could
5053 potentially lead to a spoofing attack).
5054 [Ben Laurie (CHATS)]
5056 *) Fix various buffers to be large enough for hex/decimal
5057 representations in a platform independent manner.
5058 [Ben Laurie (CHATS)]
5060 *) Add CRYPTO_realloc_clean() to avoid information leakage when
5061 resizing buffers containing secrets, and use where appropriate.
5062 [Ben Laurie (CHATS)]
5064 *) Add BIO_indent() to avoid much slightly worrying code to do
5066 [Ben Laurie (CHATS)]
5068 *) Convert sprintf()/BIO_puts() to BIO_printf().
5069 [Ben Laurie (CHATS)]
5071 *) buffer_gets() could terminate with the buffer only half
5073 [Ben Laurie (CHATS)]
5075 *) Add assertions to prevent user-supplied crypto functions from
5076 overflowing internal buffers by having large block sizes, etc.
5077 [Ben Laurie (CHATS)]
5079 *) New OPENSSL_assert() macro (similar to assert(), but enabled
5081 [Ben Laurie (CHATS)]
5083 *) Eliminate unused copy of key in RC4.
5084 [Ben Laurie (CHATS)]
5086 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
5087 [Ben Laurie (CHATS)]
5089 *) Fix off-by-one error in EGD path.
5090 [Ben Laurie (CHATS)]
5092 *) If RANDFILE path is too long, ignore instead of truncating.
5093 [Ben Laurie (CHATS)]
5095 *) Eliminate unused and incorrectly sized X.509 structure
5097 [Ben Laurie (CHATS)]
5099 *) Eliminate unused and dangerous function knumber().
5100 [Ben Laurie (CHATS)]
5102 *) Eliminate unused and dangerous structure, KSSL_ERR.
5103 [Ben Laurie (CHATS)]
5105 *) Protect against overlong session ID context length in an encoded
5106 session object. Since these are local, this does not appear to be
5108 [Ben Laurie (CHATS)]
5110 *) Change from security patch (see 0.9.6e below) that did not affect
5111 the 0.9.6 release series:
5113 Remote buffer overflow in SSL3 protocol - an attacker could
5114 supply an oversized master key in Kerberos-enabled versions.
5116 [Ben Laurie (CHATS)]
5118 *) Change the SSL kerb5 codes to match RFC 2712.
5121 *) Make -nameopt work fully for req and add -reqopt switch.
5122 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
5124 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
5125 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
5127 *) Make sure tests can be performed even if the corresponding algorithms
5128 have been removed entirely. This was also the last step to make
5129 OpenSSL compilable with DJGPP under all reasonable conditions.
5130 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
5132 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
5133 to allow version independent disabling of normally unselected ciphers,
5134 which may be activated as a side-effect of selecting a single cipher.
5136 (E.g., cipher list string "RSA" enables ciphersuites that are left
5137 out of "ALL" because they do not provide symmetric encryption.
5138 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
5139 [Lutz Jaenicke, Bodo Moeller]
5141 *) Add appropriate support for separate platform-dependent build
5142 directories. The recommended way to make a platform-dependent
5143 build directory is the following (tested on Linux), maybe with
5146 # Place yourself outside of the OpenSSL source tree. In
5147 # this example, the environment variable OPENSSL_SOURCE
5148 # is assumed to contain the absolute OpenSSL source directory.
5149 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
5150 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
5151 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
5152 mkdir -p `dirname $F`
5153 ln -s $OPENSSL_SOURCE/$F $F
5156 To be absolutely sure not to disturb the source tree, a "make clean"
5157 is a good thing. If it isn't successful, don't worry about it,
5158 it probably means the source directory is very clean.
5161 *) Make sure any ENGINE control commands make local copies of string
5162 pointers passed to them whenever necessary. Otherwise it is possible
5163 the caller may have overwritten (or deallocated) the original string
5164 data when a later ENGINE operation tries to use the stored values.
5165 [Götz Babin-Ebell <babinebell@trustcenter.de>]
5167 *) Improve diagnostics in file reading and command-line digests.
5168 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
5170 *) Add AES modes CFB and OFB to the object database. Correct an
5171 error in AES-CFB decryption.
5174 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
5175 allows existing EVP_CIPHER_CTX structures to be reused after
5176 calling EVP_*Final(). This behaviour is used by encryption
5177 BIOs and some applications. This has the side effect that
5178 applications must explicitly clean up cipher contexts with
5179 EVP_CIPHER_CTX_cleanup() or they will leak memory.
5182 *) Check the values of dna and dnb in bn_mul_recursive before calling
5183 bn_mul_comba (a non zero value means the a or b arrays do not contain
5184 n2 elements) and fallback to bn_mul_normal if either is not zero.
5187 *) Fix escaping of non-ASCII characters when using the -subj option
5188 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
5191 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
5192 form for "surname", serialNumber has no short form.
5193 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
5194 therefore remove "mail" short name for "internet 7".
5195 The OID for unique identifiers in X509 certificates is
5196 x500UniqueIdentifier, not uniqueIdentifier.
5197 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
5200 *) Add an "init" command to the ENGINE config module and auto initialize
5201 ENGINEs. Without any "init" command the ENGINE will be initialized
5202 after all ctrl commands have been executed on it. If init=1 the
5203 ENGINE is initailized at that point (ctrls before that point are run
5204 on the uninitialized ENGINE and after on the initialized one). If
5205 init=0 then the ENGINE will not be iniatialized at all.
5208 *) Fix the 'app_verify_callback' interface so that the user-defined
5209 argument is actually passed to the callback: In the
5210 SSL_CTX_set_cert_verify_callback() prototype, the callback
5211 declaration has been changed from
5214 int (*cb)(X509_STORE_CTX *,void *);
5215 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
5216 i=s->ctx->app_verify_callback(&ctx)
5217 has been changed into
5218 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
5220 To update applications using SSL_CTX_set_cert_verify_callback(),
5221 a dummy argument can be added to their callback functions.
5222 [D. K. Smetters <smetters@parc.xerox.com>]
5224 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5225 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5227 *) Add and OPENSSL_LOAD_CONF define which will cause
5228 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5229 This allows older applications to transparently support certain
5230 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5231 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5232 load the config file and OPENSSL_add_all_algorithms_conf() which will
5233 always load it have also been added.
5236 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5237 Adjust NIDs and EVP layer.
5238 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5240 *) Config modules support in openssl utility.
5242 Most commands now load modules from the config file,
5243 though in a few (such as version) this isn't done
5244 because it couldn't be used for anything.
5246 In the case of ca and req the config file used is
5247 the same as the utility itself: that is the -config
5248 command line option can be used to specify an
5252 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5253 use "openssl_conf" if filename is NULL use default openssl config file.
5256 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5257 config section name. Add a new flag to tolerate a missing config file
5258 and move code to CONF_modules_load_file().
5261 *) Support for crypto accelerator cards from Accelerated Encryption
5262 Processing, www.aep.ie. (Use engine 'aep')
5263 The support was copied from 0.9.6c [engine] and adapted/corrected
5264 to work with the new engine framework.
5265 [AEP Inc. and Richard Levitte]
5267 *) Support for SureWare crypto accelerator cards from Baltimore
5268 Technologies. (Use engine 'sureware')
5269 The support was copied from 0.9.6c [engine] and adapted
5270 to work with the new engine framework.
5273 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5274 make the newer ENGINE framework commands for the CHIL engine work.
5275 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5277 *) Make it possible to produce shared libraries on ReliantUNIX.
5278 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5280 *) Add the configuration target debug-linux-ppro.
5281 Make 'openssl rsa' use the general key loading routines
5282 implemented in apps.c, and make those routines able to
5283 handle the key format FORMAT_NETSCAPE and the variant
5285 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5287 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5288 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5290 *) Add -keyform to rsautl, and document -engine.
5291 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5293 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5294 BIO_R_NO_SUCH_FILE error code rather than the generic
5295 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5298 *) Add new functions
5300 ERR_peek_last_error_line
5301 ERR_peek_last_error_line_data.
5302 These are similar to
5305 ERR_peek_error_line_data,
5306 but report on the latest error recorded rather than the first one
5307 still in the error queue.
5308 [Ben Laurie, Bodo Moeller]
5310 *) default_algorithms option in ENGINE config module. This allows things
5312 default_algorithms = ALL
5313 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5316 *) Preliminary ENGINE config module.
5319 *) New experimental application configuration code.
5322 *) Change the AES code to follow the same name structure as all other
5323 symmetric ciphers, and behave the same way. Move everything to
5324 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5325 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5327 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5328 [Ben Laurie and Theo de Raadt]
5330 *) Add option to output public keys in req command.
5331 [Massimiliano Pala madwolf@openca.org]
5333 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5334 (up to about 10% better than before for P-192 and P-224).
5337 *) New functions/macros
5339 SSL_CTX_set_msg_callback(ctx, cb)
5340 SSL_CTX_set_msg_callback_arg(ctx, arg)
5341 SSL_set_msg_callback(ssl, cb)
5342 SSL_set_msg_callback_arg(ssl, arg)
5344 to request calling a callback function
5346 void cb(int write_p, int version, int content_type,
5347 const void *buf, size_t len, SSL *ssl, void *arg)
5349 whenever a protocol message has been completely received
5350 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5351 protocol version according to which the SSL library interprets
5352 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5353 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5354 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5355 specification (change_cipher_spec(20), alert(21), handshake(22)).
5356 'buf' and 'len' point to the actual message, 'ssl' to the
5357 SSL object, and 'arg' is the application-defined value set by
5358 SSL[_CTX]_set_msg_callback_arg().
5360 'openssl s_client' and 'openssl s_server' have new '-msg' options
5361 to enable a callback that displays all protocol messages.
5364 *) Change the shared library support so shared libraries are built as
5365 soon as the corresponding static library is finished, and thereby get
5366 openssl and the test programs linked against the shared library.
5367 This still only happens when the keyword "shard" has been given to
5368 the configuration scripts.
5370 NOTE: shared library support is still an experimental thing, and
5371 backward binary compatibility is still not guaranteed.
5372 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5374 *) Add support for Subject Information Access extension.
5375 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5377 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5378 additional bytes when new memory had to be allocated, not just
5379 when reusing an existing buffer.
5382 *) New command line and configuration option 'utf8' for the req command.
5383 This allows field values to be specified as UTF8 strings.
5386 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5387 runs for the former and machine-readable output for the latter.
5390 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5391 of the e-mail address in the DN (i.e., it will go into a certificate
5392 extension only). The new configuration file option 'email_in_dn = no'
5393 has the same effect.
5394 [Massimiliano Pala madwolf@openca.org]
5396 *) Change all functions with names starting with des_ to be starting
5397 with DES_ instead. Add wrappers that are compatible with libdes,
5398 but are named _ossl_old_des_*. Finally, add macros that map the
5399 des_* symbols to the corresponding _ossl_old_des_* if libdes
5400 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5401 desired, the des_* symbols will be mapped to DES_*, with one
5404 Since we provide two compatibility mappings, the user needs to
5405 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5406 compatibility is desired. The default (i.e., when that macro
5407 isn't defined) is OpenSSL 0.9.6c compatibility.
5409 There are also macros that enable and disable the support of old
5410 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5411 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5412 are defined, the default will apply: to support the old des routines.
5414 In either case, one must include openssl/des.h to get the correct
5415 definitions. Do not try to just include openssl/des_old.h, that
5418 NOTE: This is a major break of an old API into a new one. Software
5419 authors are encouraged to switch to the DES_ style functions. Some
5420 time in the future, des_old.h and the libdes compatibility functions
5421 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5422 default), and then completely removed.
5425 *) Test for certificates which contain unsupported critical extensions.
5426 If such a certificate is found during a verify operation it is
5427 rejected by default: this behaviour can be overridden by either
5428 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5429 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5430 X509_supported_extension() has also been added which returns 1 if a
5431 particular extension is supported.
5434 *) Modify the behaviour of EVP cipher functions in similar way to digests
5435 to retain compatibility with existing code.
5438 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5439 compatibility with existing code. In particular the 'ctx' parameter does
5440 not have to be to be initialized before the call to EVP_DigestInit() and
5441 it is tidied up after a call to EVP_DigestFinal(). New function
5442 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5443 EVP_MD_CTX_copy() changed to not require the destination to be
5444 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5445 requires the destination to be valid.
5447 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5448 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5451 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5452 so that complete 'Handshake' protocol structures are kept in memory
5453 instead of overwriting 'msg_type' and 'length' with 'body' data.
5456 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5457 [Massimo Santin via Richard Levitte]
5459 *) Major restructuring to the underlying ENGINE code. This includes
5460 reduction of linker bloat, separation of pure "ENGINE" manipulation
5461 (initialisation, etc) from functionality dealing with implementations
5462 of specific crypto iterfaces. This change also introduces integrated
5463 support for symmetric ciphers and digest implementations - so ENGINEs
5464 can now accelerate these by providing EVP_CIPHER and EVP_MD
5465 implementations of their own. This is detailed in crypto/engine/README
5466 as it couldn't be adequately described here. However, there are a few
5467 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5468 were changed in the original introduction of ENGINE code have now
5469 reverted back - the hooking from this code to ENGINE is now a good
5470 deal more passive and at run-time, operations deal directly with
5471 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5472 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5473 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5474 they were not being used by the framework as there is no concept of a
5475 BIGNUM_METHOD and they could not be generalised to the new
5476 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5477 ENGINE_cpy() has been removed as it cannot be consistently defined in
5481 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5484 *) Change mkdef.pl to sort symbols that get the same entry number,
5485 and make sure the automatically generated functions ERR_load_*
5486 become part of libeay.num as well.
5489 *) New function SSL_renegotiate_pending(). This returns true once
5490 renegotiation has been requested (either SSL_renegotiate() call
5491 or HelloRequest/ClientHello received from the peer) and becomes
5492 false once a handshake has been completed.
5493 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5494 sends a HelloRequest, but does not ensure that a handshake takes
5495 place. SSL_renegotiate_pending() is useful for checking if the
5496 client has followed the request.)
5499 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5500 By default, clients may request session resumption even during
5501 renegotiation (if session ID contexts permit); with this option,
5502 session resumption is possible only in the first handshake.
5504 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5505 more bits available for options that should not be part of
5506 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5509 *) Add some demos for certificate and certificate request creation.
5512 *) Make maximum certificate chain size accepted from the peer application
5513 settable (SSL*_get/set_max_cert_list()), as proposed by
5514 "Douglas E. Engert" <deengert@anl.gov>.
5517 *) Add support for shared libraries for Unixware-7
5518 (Boyd Lynn Gerber <gerberb@zenez.com>).
5521 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5522 be done prior to destruction. Use this to unload error strings from
5523 ENGINEs that load their own error strings. NB: This adds two new API
5524 functions to "get" and "set" this destroy handler in an ENGINE.
5527 *) Alter all existing ENGINE implementations (except "openssl" and
5528 "openbsd") to dynamically instantiate their own error strings. This
5529 makes them more flexible to be built both as statically-linked ENGINEs
5530 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5531 Also, add stub code to each that makes building them as self-contained
5532 shared-libraries easier (see README.ENGINE).
5535 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5536 implementations into applications that are completely implemented in
5537 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5538 commands that can be used to configure what shared-library to load and
5539 to control aspects of the way it is handled. Also, made an update to
5540 the README.ENGINE file that brings its information up-to-date and
5541 provides some information and instructions on the "dynamic" ENGINE
5542 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5545 *) Make it possible to unload ranges of ERR strings with a new
5546 "ERR_unload_strings" function.
5549 *) Add a copy() function to EVP_MD.
5552 *) Make EVP_MD routines take a context pointer instead of just the
5553 md_data void pointer.
5556 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5557 that the digest can only process a single chunk of data
5558 (typically because it is provided by a piece of
5559 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5560 is only going to provide a single chunk of data, and hence the
5561 framework needn't accumulate the data for oneshot drivers.
5564 *) As with "ERR", make it possible to replace the underlying "ex_data"
5565 functions. This change also alters the storage and management of global
5566 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5567 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5568 index counters. The API functions that use this state have been changed
5569 to take a "class_index" rather than pointers to the class's local STACK
5570 and counter, and there is now an API function to dynamically create new
5571 classes. This centralisation allows us to (a) plug a lot of the
5572 thread-safety problems that existed, and (b) makes it possible to clean
5573 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5574 such data would previously have always leaked in application code and
5575 workarounds were in place to make the memory debugging turn a blind eye
5576 to it. Application code that doesn't use this new function will still
5577 leak as before, but their memory debugging output will announce it now
5578 rather than letting it slide.
5580 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5581 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5582 has a return value to indicate success or failure.
5585 *) Make it possible to replace the underlying "ERR" functions such that the
5586 global state (2 LHASH tables and 2 locks) is only used by the "default"
5587 implementation. This change also adds two functions to "get" and "set"
5588 the implementation prior to it being automatically set the first time
5589 any other ERR function takes place. Ie. an application can call "get",
5590 pass the return value to a module it has just loaded, and that module
5591 can call its own "set" function using that value. This means the
5592 module's "ERR" operations will use (and modify) the error state in the
5593 application and not in its own statically linked copy of OpenSSL code.
5596 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5597 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5598 the operation, and provides a more encapsulated way for external code
5599 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5600 to use these functions rather than manually incrementing the counts.
5602 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5605 *) Add EVP test program.
5608 *) Add symmetric cipher support to ENGINE. Expect the API to change!
5611 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
5612 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
5613 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
5614 These allow a CRL to be built without having to access X509_CRL fields
5615 directly. Modify 'ca' application to use new functions.
5618 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5619 bug workarounds. Rollback attack detection is a security feature.
5620 The problem will only arise on OpenSSL servers when TLSv1 is not
5621 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
5622 Software authors not wanting to support TLSv1 will have special reasons
5623 for their choice and can explicitly enable this option.
5624 [Bodo Moeller, Lutz Jaenicke]
5626 *) Rationalise EVP so it can be extended: don't include a union of
5627 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
5628 (similar to those existing for EVP_CIPHER_CTX).
5633 EVP_MD_CTX_init(&md); /* new function call */
5634 EVP_DigestInit(&md, EVP_sha1());
5635 EVP_DigestUpdate(&md, in, len);
5636 EVP_DigestFinal(&md, out, NULL);
5637 EVP_MD_CTX_cleanup(&md); /* new function call */
5641 *) Make DES key schedule conform to the usual scheme, as well as
5642 correcting its structure. This means that calls to DES functions
5643 now have to pass a pointer to a des_key_schedule instead of a
5644 plain des_key_schedule (which was actually always a pointer
5647 des_key_schedule ks;
5649 des_set_key_checked(..., &ks);
5650 des_ncbc_encrypt(..., &ks, ...);
5652 (Note that a later change renames 'des_...' into 'DES_...'.)
5655 *) Initial reduction of linker bloat: the use of some functions, such as
5656 PEM causes large amounts of unused functions to be linked in due to
5657 poor organisation. For example pem_all.c contains every PEM function
5658 which has a knock on effect of linking in large amounts of (unused)
5659 ASN1 code. Grouping together similar functions and splitting unrelated
5660 functions prevents this.
5663 *) Cleanup of EVP macros.
5666 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5667 correct _ecb suffix.
5670 *) Add initial OCSP responder support to ocsp application. The
5671 revocation information is handled using the text based index
5672 use by the ca application. The responder can either handle
5673 requests generated internally, supplied in files (for example
5674 via a CGI script) or using an internal minimal server.
5677 *) Add configuration choices to get zlib compression for TLS.
5680 *) Changes to Kerberos SSL for RFC 2712 compliance:
5681 1. Implemented real KerberosWrapper, instead of just using
5682 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
5683 2. Implemented optional authenticator field of KerberosWrapper.
5685 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
5686 and authenticator structs; see crypto/krb5/.
5688 Generalized Kerberos calls to support multiple Kerberos libraries.
5689 [Vern Staats <staatsvr@asc.hpc.mil>,
5690 Jeffrey Altman <jaltman@columbia.edu>
5691 via Richard Levitte]
5693 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5694 already does with RSA. testdsa.h now has 'priv_key/pub_key'
5695 values for each of the key sizes rather than having just
5696 parameters (and 'speed' generating keys each time).
5699 *) Speed up EVP routines.
5702 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
5703 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
5704 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
5705 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
5707 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
5708 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
5709 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
5712 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
5714 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
5717 *) Added the OS2-EMX target.
5718 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5720 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5721 to support NCONF routines in extension code. New function CONF_set_nconf()
5722 to allow functions which take an NCONF to also handle the old LHASH
5723 structure: this means that the old CONF compatible routines can be
5724 retained (in particular wrt extensions) without having to duplicate the
5725 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5728 *) Enhance the general user interface with mechanisms for inner control
5729 and with possibilities to have yes/no kind of prompts.
5732 *) Change all calls to low level digest routines in the library and
5733 applications to use EVP. Add missing calls to HMAC_cleanup() and
5734 don't assume HMAC_CTX can be copied using memcpy().
5735 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5737 *) Add the possibility to control engines through control names but with
5738 arbitrary arguments instead of just a string.
5739 Change the key loaders to take a UI_METHOD instead of a callback
5740 function pointer. NOTE: this breaks binary compatibility with earlier
5741 versions of OpenSSL [engine].
5742 Adapt the nCipher code for these new conditions and add a card insertion
5746 *) Enhance the general user interface with mechanisms to better support
5747 dialog box interfaces, application-defined prompts, the possibility
5748 to use defaults (for example default passwords from somewhere else)
5749 and interrupts/cancellations.
5752 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5753 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5756 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5757 tidy up some unnecessarily weird code in 'sk_new()').
5758 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5760 *) Change the key loading routines for ENGINEs to use the same kind
5761 callback (pem_password_cb) as all other routines that need this
5765 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5766 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5767 than this minimum value is recommended.
5770 *) New random seeder for OpenVMS, using the system process statistics
5771 that are easily reachable.
5774 *) Windows apparently can't transparently handle global
5775 variables defined in DLLs. Initialisations such as:
5777 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5779 wont compile. This is used by the any applications that need to
5780 declare their own ASN1 modules. This was fixed by adding the option
5781 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5782 needed for static libraries under Win32.
5785 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5786 setting of purpose and trust fields. New X509_STORE trust and
5787 purpose functions and tidy up setting in other SSL functions.
5790 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5791 structure. These are inherited by X509_STORE_CTX when it is
5792 initialised. This allows various defaults to be set in the
5793 X509_STORE structure (such as flags for CRL checking and custom
5794 purpose or trust settings) for functions which only use X509_STORE_CTX
5795 internally such as S/MIME.
5797 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5798 trust settings if they are not set in X509_STORE. This allows X509_STORE
5799 purposes and trust (in S/MIME for example) to override any set by default.
5801 Add command line options for CRL checking to smime, s_client and s_server
5805 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5806 are set then the CRL is looked up in the X509_STORE structure and
5807 its validity and signature checked, then if the certificate is found
5808 in the CRL the verify fails with a revoked error.
5810 Various new CRL related callbacks added to X509_STORE_CTX structure.
5812 Command line options added to 'verify' application to support this.
5814 This needs some additional work, such as being able to handle multiple
5815 CRLs with different times, extension based lookup (rather than just
5816 by subject name) and ultimately more complete V2 CRL extension
5820 *) Add a general user interface API (crypto/ui/). This is designed
5821 to replace things like des_read_password and friends (backward
5822 compatibility functions using this new API are provided).
5823 The purpose is to remove prompting functions from the DES code
5824 section as well as provide for prompting through dialog boxes in
5825 a window system and the like.
5828 *) Add "ex_data" support to ENGINE so implementations can add state at a
5829 per-structure level rather than having to store it globally.
5832 *) Make it possible for ENGINE structures to be copied when retrieved by
5833 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5834 This causes the "original" ENGINE structure to act like a template,
5835 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5836 operational state can be localised to each ENGINE structure, despite the
5837 fact they all share the same "methods". New ENGINE structures returned in
5838 this case have no functional references and the return value is the single
5839 structural reference. This matches the single structural reference returned
5840 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5844 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5845 needs to match any other type at all we need to manually clear the
5849 *) Changes to the "openssl engine" utility to include;
5850 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5851 about an ENGINE's available control commands.
5852 - executing control commands from command line arguments using the
5853 '-pre' and '-post' switches. '-post' is only used if '-t' is
5854 specified and the ENGINE is successfully initialised. The syntax for
5855 the individual commands are colon-separated, for example;
5856 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5859 *) New dynamic control command support for ENGINEs. ENGINEs can now
5860 declare their own commands (numbers), names (strings), descriptions,
5861 and input types for run-time discovery by calling applications. A
5862 subset of these commands are implicitly classed as "executable"
5863 depending on their input type, and only these can be invoked through
5864 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5865 can be based on user input, config files, etc). The distinction is
5866 that "executable" commands cannot return anything other than a boolean
5867 result and can only support numeric or string input, whereas some
5868 discoverable commands may only be for direct use through
5869 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5870 pointers, or other custom uses. The "executable" commands are to
5871 support parameterisations of ENGINE behaviour that can be
5872 unambiguously defined by ENGINEs and used consistently across any
5873 OpenSSL-based application. Commands have been added to all the
5874 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5875 control over shared-library paths without source code alterations.
5878 *) Changed all ENGINE implementations to dynamically allocate their
5879 ENGINEs rather than declaring them statically. Apart from this being
5880 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5881 this also allows the implementations to compile without using the
5882 internal engine_int.h header.
5885 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5886 'const' value. Any code that should be able to modify a RAND_METHOD
5887 should already have non-const pointers to it (ie. they should only
5888 modify their own ones).
5891 *) Made a variety of little tweaks to the ENGINE code.
5892 - "atalla" and "ubsec" string definitions were moved from header files
5893 to C code. "nuron" string definitions were placed in variables
5894 rather than hard-coded - allowing parameterisation of these values
5895 later on via ctrl() commands.
5896 - Removed unused "#if 0"'d code.
5897 - Fixed engine list iteration code so it uses ENGINE_free() to release
5898 structural references.
5899 - Constified the RAND_METHOD element of ENGINE structures.
5900 - Constified various get/set functions as appropriate and added
5901 missing functions (including a catch-all ENGINE_cpy that duplicates
5902 all ENGINE values onto a new ENGINE except reference counts/state).
5903 - Removed NULL parameter checks in get/set functions. Setting a method
5904 or function to NULL is a way of cancelling out a previously set
5905 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5906 and doesn't justify the extra error symbols and code.
5907 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5908 flags from engine_int.h to engine.h.
5909 - Changed prototypes for ENGINE handler functions (init(), finish(),
5910 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5913 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5914 to the algorithm using long division. The binary algorithm can be
5915 used only if the modulus is odd. On 32-bit systems, it is faster
5916 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5917 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5918 up to 450 bits. In 64-bit environments, the binary algorithm
5919 appears to be advantageous for much longer moduli; here we use it
5920 for moduli up to 2048 bits.
5923 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5924 could not support the combine flag in choice fields.
5927 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5928 extensions from a certificate request to the certificate.
5931 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5932 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5933 file: this allows the display of the certificate about to be
5934 signed to be customised, to allow certain fields to be included
5935 or excluded and extension details. The old system didn't display
5936 multicharacter strings properly, omitted fields not in the policy
5937 and couldn't display additional details such as extensions.
5940 *) Function EC_POINTs_mul for multiple scalar multiplication
5941 of an arbitrary number of elliptic curve points
5942 \sum scalars[i]*points[i],
5943 optionally including the generator defined for the EC_GROUP:
5944 scalar*generator + \sum scalars[i]*points[i].
5946 EC_POINT_mul is a simple wrapper function for the typical case
5947 that the point list has just one item (besides the optional
5951 *) First EC_METHODs for curves over GF(p):
5953 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5954 operations and provides various method functions that can also
5955 operate with faster implementations of modular arithmetic.
5957 EC_GFp_mont_method() reuses most functions that are part of
5958 EC_GFp_simple_method, but uses Montgomery arithmetic.
5960 [Bodo Moeller; point addition and point doubling
5961 implementation directly derived from source code provided by
5962 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5964 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5965 crypto/ec/ec_lib.c):
5967 Curves are EC_GROUP objects (with an optional group generator)
5968 based on EC_METHODs that are built into the library.
5970 Points are EC_POINT objects based on EC_GROUP objects.
5972 Most of the framework would be able to handle curves over arbitrary
5973 finite fields, but as there are no obvious types for fields other
5974 than GF(p), some functions are limited to that for now.
5977 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5978 that the file contains a complete HTTP response.
5981 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5982 change the def and num file printf format specifier from "%-40sXXX"
5983 to "%-39s XXX". The latter will always guarantee a space after the
5984 field while the former will cause them to run together if the field
5985 is 40 of more characters long.
5988 *) Constify the cipher and digest 'method' functions and structures
5989 and modify related functions to take constant EVP_MD and EVP_CIPHER
5993 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5994 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5997 *) Modify EVP_Digest*() routines so they now return values. Although the
5998 internal software routines can never fail additional hardware versions
6002 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
6004 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
6005 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
6008 ERR_R_NESTED_ASN1_ERROR
6010 ERR_R_MISSING_ASN1_EOS
6011 were 4 .. 9, conflicting with
6012 ERR_LIB_RSA (= ERR_R_RSA_LIB)
6014 ERR_LIB_PEM (= ERR_R_PEM_LIB).
6015 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
6017 Add new error code 'ERR_R_INTERNAL_ERROR'.
6020 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
6024 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
6025 sets the subject name for a new request or supersedes the
6026 subject name in a given request. Formats that can be parsed are
6027 'CN=Some Name, OU=myOU, C=IT'
6029 'CN=Some Name/OU=myOU/C=IT'.
6031 Add options '-batch' and '-verbose' to 'openssl req'.
6032 [Massimiliano Pala <madwolf@hackmasters.net>]
6034 *) Introduce the possibility to access global variables through
6035 functions on platform were that's the best way to handle exporting
6036 global variables in shared libraries. To enable this functionality,
6037 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
6038 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
6039 is normally done by Configure or something similar).
6041 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
6042 in the source file (foo.c) like this:
6044 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
6045 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
6047 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
6048 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
6050 OPENSSL_DECLARE_GLOBAL(int,foo);
6051 #define foo OPENSSL_GLOBAL_REF(foo)
6052 OPENSSL_DECLARE_GLOBAL(double,bar);
6053 #define bar OPENSSL_GLOBAL_REF(bar)
6055 The #defines are very important, and therefore so is including the
6056 header file everywhere where the defined globals are used.
6058 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
6059 of ASN.1 items, but that structure is a bit different.
6061 The largest change is in util/mkdef.pl which has been enhanced with
6062 better and easier to understand logic to choose which symbols should
6063 go into the Windows .def files as well as a number of fixes and code
6064 cleanup (among others, algorithm keywords are now sorted
6065 lexicographically to avoid constant rewrites).
6068 *) In BN_div() keep a copy of the sign of 'num' before writing the
6069 result to 'rm' because if rm==num the value will be overwritten
6070 and produce the wrong result if 'num' is negative: this caused
6071 problems with BN_mod() and BN_nnmod().
6074 *) Function OCSP_request_verify(). This checks the signature on an
6075 OCSP request and verifies the signer certificate. The signer
6076 certificate is just checked for a generic purpose and OCSP request
6080 *) Add OCSP_check_validity() function to check the validity of OCSP
6081 responses. OCSP responses are prepared in real time and may only
6082 be a few seconds old. Simply checking that the current time lies
6083 between thisUpdate and nextUpdate max reject otherwise valid responses
6084 caused by either OCSP responder or client clock inaccuracy. Instead
6085 we allow thisUpdate and nextUpdate to fall within a certain period of
6086 the current time. The age of the response can also optionally be
6087 checked. Two new options -validity_period and -status_age added to
6091 *) If signature or public key algorithm is unrecognized print out its
6092 OID rather that just UNKNOWN.
6095 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
6096 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
6097 ID to be generated from the issuer certificate alone which can then be
6098 passed to OCSP_id_issuer_cmp().
6101 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
6102 ASN1 modules to export functions returning ASN1_ITEM pointers
6103 instead of the ASN1_ITEM structures themselves. This adds several
6104 new macros which allow the underlying ASN1 function/structure to
6105 be accessed transparently. As a result code should not use ASN1_ITEM
6106 references directly (such as &X509_it) but instead use the relevant
6107 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
6108 use of the new ASN1 code on platforms where exporting structures
6109 is problematical (for example in shared libraries) but exporting
6110 functions returning pointers to structures is not.
6113 *) Add support for overriding the generation of SSL/TLS session IDs.
6114 These callbacks can be registered either in an SSL_CTX or per SSL.
6115 The purpose of this is to allow applications to control, if they wish,
6116 the arbitrary values chosen for use as session IDs, particularly as it
6117 can be useful for session caching in multiple-server environments. A
6118 command-line switch for testing this (and any client code that wishes
6119 to use such a feature) has been added to "s_server".
6120 [Geoff Thorpe, Lutz Jaenicke]
6122 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
6123 of the form '#if defined(...) || defined(...) || ...' and
6124 '#if !defined(...) && !defined(...) && ...'. This also avoids
6125 the growing number of special cases it was previously handling.
6128 *) Make all configuration macros available for application by making
6129 sure they are available in opensslconf.h, by giving them names starting
6130 with "OPENSSL_" to avoid conflicts with other packages and by making
6131 sure e_os2.h will cover all platform-specific cases together with
6133 Additionally, it is now possible to define configuration/platform-
6134 specific names (called "system identities"). In the C code, these
6135 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
6136 macro with the name beginning with "OPENSSL_SYS_", which is determined
6137 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
6141 *) New option -set_serial to 'req' and 'x509' this allows the serial
6142 number to use to be specified on the command line. Previously self
6143 signed certificates were hard coded with serial number 0 and the
6144 CA options of 'x509' had to use a serial number in a file which was
6148 *) New options to 'ca' utility to support V2 CRL entry extensions.
6149 Currently CRL reason, invalidity date and hold instruction are
6150 supported. Add new CRL extensions to V3 code and some new objects.
6153 *) New function EVP_CIPHER_CTX_set_padding() this is used to
6154 disable standard block padding (aka PKCS#5 padding) in the EVP
6155 API, which was previously mandatory. This means that the data is
6156 not padded in any way and so the total length much be a multiple
6157 of the block size, otherwise an error occurs.
6160 *) Initial (incomplete) OCSP SSL support.
6163 *) New function OCSP_parse_url(). This splits up a URL into its host,
6164 port and path components: primarily to parse OCSP URLs. New -url
6165 option to ocsp utility.
6168 *) New nonce behavior. The return value of OCSP_check_nonce() now
6169 reflects the various checks performed. Applications can decide
6170 whether to tolerate certain situations such as an absent nonce
6171 in a response when one was present in a request: the ocsp application
6172 just prints out a warning. New function OCSP_add1_basic_nonce()
6173 this is to allow responders to include a nonce in a response even if
6174 the request is nonce-less.
6177 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
6178 skipped when using openssl x509 multiple times on a single input file,
6179 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
6182 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
6183 set string type: to handle setting ASN1_TIME structures. Fix ca
6184 utility to correctly initialize revocation date of CRLs.
6187 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
6188 the clients preferred ciphersuites and rather use its own preferences.
6189 Should help to work around M$ SGC (Server Gated Cryptography) bug in
6190 Internet Explorer by ensuring unchanged hash method during stepup.
6191 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
6194 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
6195 to aes and add a new 'exist' option to print out symbols that don't
6199 *) Additional options to ocsp utility to allow flags to be set and
6200 additional certificates supplied.
6203 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
6204 OCSP client a number of certificate to only verify the response
6208 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
6209 handle the new API. Currently only ECB, CBC modes supported. Add new
6212 Add TLS AES ciphersuites as described in RFC3268, "Advanced
6213 Encryption Standard (AES) Ciphersuites for Transport Layer
6214 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
6215 not enabled by default and were not part of the "ALL" ciphersuite
6216 alias because they were not yet official; they could be
6217 explicitly requested by specifying the "AESdraft" ciphersuite
6218 group alias. In the final release of OpenSSL 0.9.7, the group
6219 alias is called "AES" and is part of "ALL".)
6220 [Ben Laurie, Steve Henson, Bodo Moeller]
6222 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6223 request to response.
6226 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6227 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6228 extract information from a certificate request. OCSP_response_create()
6229 creates a response and optionally adds a basic response structure.
6230 OCSP_basic_add1_status() adds a complete single response to a basic
6231 response and returns the OCSP_SINGLERESP structure just added (to allow
6232 extensions to be included for example). OCSP_basic_add1_cert() adds a
6233 certificate to a basic response and OCSP_basic_sign() signs a basic
6234 response with various flags. New helper functions ASN1_TIME_check()
6235 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6236 (converts ASN1_TIME to GeneralizedTime).
6239 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6240 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6241 structure from a certificate. X509_pubkey_digest() digests the public_key
6242 contents: this is used in various key identifiers.
6245 *) Make sk_sort() tolerate a NULL argument.
6246 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6248 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6249 passed by the function are trusted implicitly. If any of them signed the
6250 response then it is assumed to be valid and is not verified.
6253 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6254 to data. This was previously part of the PKCS7 ASN1 code. This
6255 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6256 [Steve Henson, reported by Kenneth R. Robinette
6257 <support@securenetterm.com>]
6259 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6260 routines: without these tracing memory leaks is very painful.
6261 Fix leaks in PKCS12 and PKCS7 routines.
6264 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6265 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6266 effectively meant GeneralizedTime would never be used. Now it
6267 is initialised to -1 but X509_time_adj() now has to check the value
6268 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6269 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6270 [Steve Henson, reported by Kenneth R. Robinette
6271 <support@securenetterm.com>]
6273 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6274 result in a zero length in the ASN1_INTEGER structure which was
6275 not consistent with the structure when d2i_ASN1_INTEGER() was used
6276 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6277 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6278 where it did not print out a minus for negative ASN1_INTEGER.
6281 *) Add summary printout to ocsp utility. The various functions which
6282 convert status values to strings have been renamed to:
6283 OCSP_response_status_str(), OCSP_cert_status_str() and
6284 OCSP_crl_reason_str() and are no longer static. New options
6285 to verify nonce values and to disable verification. OCSP response
6286 printout format cleaned up.
6289 *) Add additional OCSP certificate checks. These are those specified
6290 in RFC2560. This consists of two separate checks: the CA of the
6291 certificate being checked must either be the OCSP signer certificate
6292 or the issuer of the OCSP signer certificate. In the latter case the
6293 OCSP signer certificate must contain the OCSP signing extended key
6294 usage. This check is performed by attempting to match the OCSP
6295 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6296 in the OCSP_CERTID structures of the response.
6299 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6300 and related routines. This uses the standard OpenSSL certificate
6301 verify routines to perform initial checks (just CA validity) and
6302 to obtain the certificate chain. Then additional checks will be
6303 performed on the chain. Currently the root CA is checked to see
6304 if it is explicitly trusted for OCSP signing. This is used to set
6305 a root CA as a global signing root: that is any certificate that
6306 chains to that CA is an acceptable OCSP signing certificate.
6309 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6310 extensions from a separate configuration file.
6311 As when reading extensions from the main configuration file,
6312 the '-extensions ...' option may be used for specifying the
6314 [Massimiliano Pala <madwolf@comune.modena.it>]
6316 *) New OCSP utility. Allows OCSP requests to be generated or
6317 read. The request can be sent to a responder and the output
6318 parsed, outputed or printed in text form. Not complete yet:
6319 still needs to check the OCSP response validity.
6322 *) New subcommands for 'openssl ca':
6323 'openssl ca -status <serial>' prints the status of the cert with
6324 the given serial number (according to the index file).
6325 'openssl ca -updatedb' updates the expiry status of certificates
6327 [Massimiliano Pala <madwolf@comune.modena.it>]
6329 *) New '-newreq-nodes' command option to CA.pl. This is like
6330 '-newreq', but calls 'openssl req' with the '-nodes' option
6331 so that the resulting key is not encrypted.
6332 [Damien Miller <djm@mindrot.org>]
6334 *) New configuration for the GNU Hurd.
6335 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6337 *) Initial code to implement OCSP basic response verify. This
6338 is currently incomplete. Currently just finds the signer's
6339 certificate and verifies the signature on the response.
6342 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6343 value of OPENSSLDIR. This is available via the new '-d' option
6344 to 'openssl version', and is also included in 'openssl version -a'.
6347 *) Allowing defining memory allocation callbacks that will be given
6348 file name and line number information in additional arguments
6349 (a const char* and an int). The basic functionality remains, as
6350 well as the original possibility to just replace malloc(),
6351 realloc() and free() by functions that do not know about these
6352 additional arguments. To register and find out the current
6353 settings for extended allocation functions, the following
6354 functions are provided:
6356 CRYPTO_set_mem_ex_functions
6357 CRYPTO_set_locked_mem_ex_functions
6358 CRYPTO_get_mem_ex_functions
6359 CRYPTO_get_locked_mem_ex_functions
6361 These work the same way as CRYPTO_set_mem_functions and friends.
6362 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6363 extended allocation function is enabled.
6364 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6365 a conventional allocation function is enabled.
6366 [Richard Levitte, Bodo Moeller]
6368 *) Finish off removing the remaining LHASH function pointer casts.
6369 There should no longer be any prototype-casting required when using
6370 the LHASH abstraction, and any casts that remain are "bugs". See
6371 the callback types and macros at the head of lhash.h for details
6372 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6375 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6376 If /dev/[u]random devices are not available or do not return enough
6377 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6379 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6380 /etc/entropy will be queried once each in this sequence, quering stops
6381 when enough entropy was collected without querying more sockets.
6384 *) Change the Unix RAND_poll() variant to be able to poll several
6385 random devices, as specified by DEVRANDOM, until a sufficient amount
6386 of data has been collected. We spend at most 10 ms on each file
6387 (select timeout) and read in non-blocking mode. DEVRANDOM now
6388 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6389 (previously it was just the string "/dev/urandom"), so on typical
6390 platforms the 10 ms delay will never occur.
6391 Also separate out the Unix variant to its own file, rand_unix.c.
6392 For VMS, there's a currently-empty rand_vms.c.
6395 *) Move OCSP client related routines to ocsp_cl.c. These
6396 provide utility functions which an application needing
6397 to issue a request to an OCSP responder and analyse the
6398 response will typically need: as opposed to those which an
6399 OCSP responder itself would need which will be added later.
6401 OCSP_request_sign() signs an OCSP request with an API similar
6402 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6403 response. OCSP_response_get1_basic() extracts basic response
6404 from response. OCSP_resp_find_status(): finds and extracts status
6405 information from an OCSP_CERTID structure (which will be created
6406 when the request structure is built). These are built from lower
6407 level functions which work on OCSP_SINGLERESP structures but
6408 wont normally be used unless the application wishes to examine
6409 extensions in the OCSP response for example.
6411 Replace nonce routines with a pair of functions.
6412 OCSP_request_add1_nonce() adds a nonce value and optionally
6413 generates a random value. OCSP_check_nonce() checks the
6414 validity of the nonce in an OCSP response.
6417 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6418 This doesn't copy the supplied OCSP_CERTID and avoids the
6419 need to free up the newly created id. Change return type
6420 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6421 This can then be used to add extensions to the request.
6422 Deleted OCSP_request_new(), since most of its functionality
6423 is now in OCSP_REQUEST_new() (and the case insensitive name
6424 clash) apart from the ability to set the request name which
6425 will be added elsewhere.
6428 *) Update OCSP API. Remove obsolete extensions argument from
6429 various functions. Extensions are now handled using the new
6430 OCSP extension code. New simple OCSP HTTP function which
6431 can be used to send requests and parse the response.
6434 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6435 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6436 uses the special reorder version of SET OF to sort the attributes
6437 and reorder them to match the encoded order. This resolves a long
6438 standing problem: a verify on a PKCS7 structure just after signing
6439 it used to fail because the attribute order did not match the
6440 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6441 it uses the received order. This is necessary to tolerate some broken
6442 software that does not order SET OF. This is handled by encoding
6443 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6444 to produce the required SET OF.
6447 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6448 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6449 files to get correct declarations of the ASN.1 item variables.
6452 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6453 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6454 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6455 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6456 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6457 ASN1_ITEM and no wrapper functions.
6460 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6461 replace the old function pointer based I/O routines. Change most of
6462 the *_d2i_bio() and *_d2i_fp() functions to use these.
6465 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6466 lines, recognice more "algorithms" that can be deselected, and make
6467 it complain about algorithm deselection that isn't recognised.
6470 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6471 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6472 to use new functions. Add NO_ASN1_OLD which can be set to remove
6473 some old style ASN1 functions: this can be used to determine if old
6474 code will still work when these eventually go away.
6477 *) New extension functions for OCSP structures, these follow the
6478 same conventions as certificates and CRLs.
6481 *) New function X509V3_add1_i2d(). This automatically encodes and
6482 adds an extension. Its behaviour can be customised with various
6483 flags to append, replace or delete. Various wrappers added for
6484 certifcates and CRLs.
6487 *) Fix to avoid calling the underlying ASN1 print routine when
6488 an extension cannot be parsed. Correct a typo in the
6489 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6492 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6493 entries for variables.
6496 *) Add functionality to apps/openssl.c for detecting locking
6497 problems: As the program is single-threaded, all we have
6498 to do is register a locking callback using an array for
6499 storing which locks are currently held by the program.
6502 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6503 SSL_get_ex_data_X509_STORE_idx(), which is used in
6504 ssl_verify_cert_chain() and thus can be called at any time
6505 during TLS/SSL handshakes so that thread-safety is essential.
6506 Unfortunately, the ex_data design is not at all suited
6507 for multi-threaded use, so it probably should be abolished.
6510 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6511 [Broadcom, tweaked and integrated by Geoff Thorpe]
6513 *) Move common extension printing code to new function
6514 X509V3_print_extensions(). Reorganise OCSP print routines and
6515 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6518 *) New function X509_signature_print() to remove duplication in some
6522 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6523 set (this was treated exactly the same as SET OF previously). This
6524 is used to reorder the STACK representing the structure to match the
6525 encoding. This will be used to get round a problem where a PKCS7
6526 structure which was signed could not be verified because the STACK
6527 order did not reflect the encoded order.
6530 *) Reimplement the OCSP ASN1 module using the new code.
6533 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6534 for its ASN1 operations. The old style function pointers still exist
6535 for now but they will eventually go away.
6538 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6539 completely replaces the old ASN1 functionality with a table driven
6540 encoder and decoder which interprets an ASN1_ITEM structure describing
6541 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6542 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6543 has also been converted to the new form.
6546 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6547 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6548 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6549 for negative moduli.
6552 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6553 of not touching the result's sign bit.
6556 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6560 *) Changed the LHASH code to use prototypes for callbacks, and created
6561 macros to declare and implement thin (optionally static) functions
6562 that provide type-safety and avoid function pointer casting for the
6563 type-specific callbacks.
6566 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6568 [Veers Staats <staatsvr@asc.hpc.mil>,
6569 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6571 *) Reformat the FAQ so the different questions and answers can be divided
6572 in sections depending on the subject.
6575 *) Have the zlib compression code load ZLIB.DLL dynamically under
6579 *) New function BN_mod_sqrt for computing square roots modulo a prime
6580 (using the probabilistic Tonelli-Shanks algorithm unless
6581 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6582 be handled deterministically).
6583 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6585 *) Make BN_mod_inverse faster by explicitly handling small quotients
6586 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6587 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6590 *) New function BN_kronecker.
6593 *) Fix BN_gcd so that it works on negative inputs; the result is
6594 positive unless both parameters are zero.
6595 Previously something reasonably close to an infinite loop was
6596 possible because numbers could be growing instead of shrinking
6597 in the implementation of Euclid's algorithm.
6600 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6601 sign of the number in question.
6603 Fix BN_is_word(a,w) to work correctly for w == 0.
6605 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
6606 because its test if the absolute value of 'a' equals 'w'.
6607 Note that BN_abs_is_word does *not* handle w == 0 reliably;
6608 it exists mostly for use in the implementations of BN_is_zero(),
6609 BN_is_one(), and BN_is_word().
6612 *) New function BN_swap.
6615 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
6616 the exponentiation functions are more likely to produce reasonable
6617 results on negative inputs.
6620 *) Change BN_mod_mul so that the result is always non-negative.
6621 Previously, it could be negative if one of the factors was negative;
6622 I don't think anyone really wanted that behaviour.
6625 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
6626 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
6627 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
6628 and add new functions:
6637 BN_mod_lshift1_quick
6641 These functions always generate non-negative results.
6643 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
6644 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
6646 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
6647 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
6648 be reduced modulo m.
6649 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6652 The following entry accidentally appeared in the CHANGES file
6653 distributed with OpenSSL 0.9.7. The modifications described in
6654 it do *not* apply to OpenSSL 0.9.7.
6656 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6657 was actually never needed) and in BN_mul(). The removal in BN_mul()
6658 required a small change in bn_mul_part_recursive() and the addition
6659 of the functions bn_cmp_part_words(), bn_sub_part_words() and
6660 bn_add_part_words(), which do the same thing as bn_cmp_words(),
6661 bn_sub_words() and bn_add_words() except they take arrays with
6666 *) In 'openssl passwd', verify passwords read from the terminal
6667 unless the '-salt' option is used (which usually means that
6668 verification would just waste user's time since the resulting
6669 hash is going to be compared with some given password hash)
6670 or the new '-noverify' option is used.
6672 This is an incompatible change, but it does not affect
6673 non-interactive use of 'openssl passwd' (passwords on the command
6674 line, '-stdin' option, '-in ...' option) and thus should not
6678 *) Remove all references to RSAref, since there's no more need for it.
6681 *) Make DSO load along a path given through an environment variable
6682 (SHLIB_PATH) with shl_load().
6685 *) Constify the ENGINE code as a result of BIGNUM constification.
6686 Also constify the RSA code and most things related to it. In a
6687 few places, most notable in the depth of the ASN.1 code, ugly
6688 casts back to non-const were required (to be solved at a later
6692 *) Make it so the openssl application has all engines loaded by default.
6695 *) Constify the BIGNUM routines a little more.
6698 *) Add the following functions:
6700 ENGINE_load_cswift()
6702 ENGINE_load_atalla()
6704 ENGINE_load_builtin_engines()
6706 That way, an application can itself choose if external engines that
6707 are built-in in OpenSSL shall ever be used or not. The benefit is
6708 that applications won't have to be linked with libdl or other dso
6709 libraries unless it's really needed.
6711 Changed 'openssl engine' to load all engines on demand.
6712 Changed the engine header files to avoid the duplication of some
6713 declarations (they differed!).
6716 *) 'openssl engine' can now list capabilities.
6719 *) Better error reporting in 'openssl engine'.
6722 *) Never call load_dh_param(NULL) in s_server.
6725 *) Add engine application. It can currently list engines by name and
6726 identity, and test if they are actually available.
6729 *) Improve RPM specification file by forcing symbolic linking and making
6730 sure the installed documentation is also owned by root.root.
6731 [Damien Miller <djm@mindrot.org>]
6733 *) Give the OpenSSL applications more possibilities to make use of
6734 keys (public as well as private) handled by engines.
6737 *) Add OCSP code that comes from CertCo.
6740 *) Add VMS support for the Rijndael code.
6743 *) Added untested support for Nuron crypto accelerator.
6746 *) Add support for external cryptographic devices. This code was
6747 previously distributed separately as the "engine" branch.
6748 [Geoff Thorpe, Richard Levitte]
6750 *) Rework the filename-translation in the DSO code. It is now possible to
6751 have far greater control over how a "name" is turned into a filename
6752 depending on the operating environment and any oddities about the
6753 different shared library filenames on each system.
6756 *) Support threads on FreeBSD-elf in Configure.
6759 *) Fix for SHA1 assembly problem with MASM: it produces
6760 warnings about corrupt line number information when assembling
6761 with debugging information. This is caused by the overlapping
6763 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6766 NCONF_get_number() has no error checking at all. As a replacement,
6767 NCONF_get_number_e() is defined (_e for "error checking") and is
6768 promoted strongly. The old NCONF_get_number is kept around for
6769 binary backward compatibility.
6770 Make it possible for methods to load from something other than a BIO,
6771 by providing a function pointer that is given a name instead of a BIO.
6772 For example, this could be used to load configuration data from an
6776 *) Fix for non blocking accept BIOs. Added new I/O special reason
6777 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6778 with non blocking I/O was not possible because no retry code was
6779 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6783 *) Added the beginnings of Rijndael support.
6786 *) Fix for bug in DirectoryString mask setting. Add support for
6787 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6788 to allow certificate printing to more controllable, additional
6789 'certopt' option to 'x509' to allow new printing options to be
6793 *) Clean old EAY MD5 hack from e_os.h.
6796 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6798 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6799 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6800 [Joe Orton, Steve Henson]
6802 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6804 *) Fix additional bug revealed by the NISCC test suite:
6806 Stop bug triggering large recursion when presented with
6807 certain ASN.1 tags (CVE-2003-0851)
6810 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6812 *) Fix various bugs revealed by running the NISCC test suite:
6814 Stop out of bounds reads in the ASN1 code when presented with
6815 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6817 If verify callback ignores invalid public key errors don't try to check
6818 certificate signature with the NULL public key.
6822 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6823 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6827 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6828 extra data after the compression methods not only for TLS 1.0
6829 but also for SSL 3.0 (as required by the specification).
6830 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6832 *) Change X509_certificate_type() to mark the key as exported/exportable
6833 when it's 512 *bits* long, not 512 bytes.
6836 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6838 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6839 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6840 a protocol version number mismatch like a decryption error
6841 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6844 *) Turn on RSA blinding by default in the default implementation
6845 to avoid a timing attack. Applications that don't want it can call
6846 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6847 They would be ill-advised to do so in most cases.
6848 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6850 *) Change RSA blinding code so that it works when the PRNG is not
6851 seeded (in this case, the secret RSA exponent is abused as
6852 an unpredictable seed -- if it is not unpredictable, there
6853 is no point in blinding anyway). Make RSA blinding thread-safe
6854 by remembering the creator's thread ID in rsa->blinding and
6855 having all other threads use local one-time blinding factors
6856 (this requires more computation than sharing rsa->blinding, but
6857 avoids excessive locking; and if an RSA object is not shared
6858 between threads, blinding will still be very fast).
6861 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6863 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6864 via timing by performing a MAC computation even if incorrrect
6865 block cipher padding has been found. This is a countermeasure
6866 against active attacks where the attacker has to distinguish
6867 between bad padding and a MAC verification error. (CVE-2003-0078)
6869 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6870 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6871 Martin Vuagnoux (EPFL, Ilion)]
6873 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6875 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6876 memory from it's contents. This is done with a counter that will
6877 place alternating values in each byte. This can be used to solve
6878 two issues: 1) the removal of calls to memset() by highly optimizing
6879 compilers, and 2) cleansing with other values than 0, since those can
6880 be read through on certain media, for example a swap space on disk.
6883 *) Bugfix: client side session caching did not work with external caching,
6884 because the session->cipher setting was not restored when reloading
6885 from the external cache. This problem was masked, when
6886 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6887 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6890 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6891 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6892 [Zeev Lieber <zeev-l@yahoo.com>]
6894 *) Undo an undocumented change introduced in 0.9.6e which caused
6895 repeated calls to OpenSSL_add_all_ciphers() and
6896 OpenSSL_add_all_digests() to be ignored, even after calling
6900 *) Change the default configuration reader to deal with last line not
6901 being properly terminated.
6904 *) Change X509_NAME_cmp() so it applies the special rules on handling
6905 DN values that are of type PrintableString, as well as RDNs of type
6906 emailAddress where the value has the type ia5String.
6907 [stefank@valicert.com via Richard Levitte]
6909 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6910 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6911 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6912 the bitwise-OR of the two for use by the majority of applications
6913 wanting this behaviour, and update the docs. The documented
6914 behaviour and actual behaviour were inconsistent and had been
6915 changing anyway, so this is more a bug-fix than a behavioural
6917 [Geoff Thorpe, diagnosed by Nadav Har'El]
6919 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6920 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6923 *) Fix initialization code race conditions in
6924 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6925 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6926 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6927 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6928 ssl2_get_cipher_by_char(),
6929 ssl3_get_cipher_by_char().
6930 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6932 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6933 the cached sessions are flushed, as the remove_cb() might use ex_data
6934 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6935 (see [openssl.org #212]).
6936 [Geoff Thorpe, Lutz Jaenicke]
6938 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6939 length, instead of the encoding length to d2i_ASN1_OBJECT.
6942 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6944 *) [In 0.9.6g-engine release:]
6945 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6946 [Lynn Gazis <lgazis@rainbow.com>]
6948 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6950 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6951 and get fix the header length calculation.
6952 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6953 Alon Kantor <alonk@checkpoint.com> (and others),
6956 *) Use proper error handling instead of 'assertions' in buffer
6957 overflow checks added in 0.9.6e. This prevents DoS (the
6958 assertions could call abort()).
6959 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6961 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6963 *) Add various sanity checks to asn1_get_length() to reject
6964 the ASN1 length bytes if they exceed sizeof(long), will appear
6965 negative or the content length exceeds the length of the
6967 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6969 *) Fix cipher selection routines: ciphers without encryption had no flags
6970 for the cipher strength set and where therefore not handled correctly
6971 by the selection routines (PR #130).
6974 *) Fix EVP_dsa_sha macro.
6978 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6979 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6980 that was added in OpenSSL 0.9.6d.
6982 As the countermeasure turned out to be incompatible with some
6983 broken SSL implementations, the new option is part of SSL_OP_ALL.
6984 SSL_OP_ALL is usually employed when compatibility with weird SSL
6985 implementations is desired (e.g. '-bugs' option to 's_client' and
6986 's_server'), so the new option is automatically set in many
6990 *) Changes in security patch:
6992 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6993 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6994 Air Force Materiel Command, USAF, under agreement number
6997 *) Add various sanity checks to asn1_get_length() to reject
6998 the ASN1 length bytes if they exceed sizeof(long), will appear
6999 negative or the content length exceeds the length of the
7000 supplied buffer. (CVE-2002-0659)
7001 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7003 *) Assertions for various potential buffer overflows, not known to
7005 [Ben Laurie (CHATS)]
7007 *) Various temporary buffers to hold ASCII versions of integers were
7008 too small for 64 bit platforms. (CVE-2002-0655)
7009 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
7011 *) Remote buffer overflow in SSL3 protocol - an attacker could
7012 supply an oversized session ID to a client. (CVE-2002-0656)
7013 [Ben Laurie (CHATS)]
7015 *) Remote buffer overflow in SSL2 protocol - an attacker could
7016 supply an oversized client master key. (CVE-2002-0656)
7017 [Ben Laurie (CHATS)]
7019 Changes between 0.9.6c and 0.9.6d [9 May 2002]
7021 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
7022 encoded as NULL) with id-dsa-with-sha1.
7023 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
7025 *) Check various X509_...() return values in apps/req.c.
7026 [Nils Larsch <nla@trustcenter.de>]
7028 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
7029 an end-of-file condition would erronously be flagged, when the CRLF
7030 was just at the end of a processed block. The bug was discovered when
7031 processing data through a buffering memory BIO handing the data to a
7032 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
7033 <ptsekov@syntrex.com> and Nedelcho Stanev.
7036 *) Implement a countermeasure against a vulnerability recently found
7037 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
7038 before application data chunks to avoid the use of known IVs
7039 with data potentially chosen by the attacker.
7042 *) Fix length checks in ssl3_get_client_hello().
7045 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
7046 to prevent ssl3_read_internal() from incorrectly assuming that
7047 ssl3_read_bytes() found application data while handshake
7048 processing was enabled when in fact s->s3->in_read_app_data was
7049 merely automatically cleared during the initial handshake.
7050 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
7052 *) Fix object definitions for Private and Enterprise: they were not
7053 recognized in their shortname (=lowercase) representation. Extend
7054 obj_dat.pl to issue an error when using undefined keywords instead
7055 of silently ignoring the problem (Svenning Sorensen
7056 <sss@sss.dnsalias.net>).
7059 *) Fix DH_generate_parameters() so that it works for 'non-standard'
7060 generators, i.e. generators other than 2 and 5. (Previously, the
7061 code did not properly initialise the 'add' and 'rem' values to
7062 BN_generate_prime().)
7064 In the new general case, we do not insist that 'generator' is
7065 actually a primitive root: This requirement is rather pointless;
7066 a generator of the order-q subgroup is just as good, if not
7070 *) Map new X509 verification errors to alerts. Discovered and submitted by
7071 Tom Wu <tom@arcot.com>.
7074 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
7075 returning non-zero before the data has been completely received
7076 when using non-blocking I/O.
7077 [Bodo Moeller; problem pointed out by John Hughes]
7079 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
7080 [Ben Laurie, Lutz Jaenicke]
7082 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
7083 Yoram Zahavi <YoramZ@gilian.com>).
7086 *) Add information about CygWin 1.3 and on, and preserve proper
7087 configuration for the versions before that.
7088 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
7090 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
7091 check whether we deal with a copy of a session and do not delete from
7092 the cache in this case. Problem reported by "Izhar Shoshani Levi"
7093 <izhar@checkpoint.com>.
7096 *) Do not store session data into the internal session cache, if it
7097 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
7098 flag is set). Proposed by Aslam <aslam@funk.com>.
7101 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
7105 *) [In 0.9.6d-engine release:]
7106 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
7107 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
7109 *) Add the configuration target linux-s390x.
7110 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
7112 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
7113 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
7114 variable as an indication that a ClientHello message has been
7115 received. As the flag value will be lost between multiple
7116 invocations of ssl3_accept when using non-blocking I/O, the
7117 function may not be aware that a handshake has actually taken
7118 place, thus preventing a new session from being added to the
7121 To avoid this problem, we now set s->new_session to 2 instead of
7122 using a local variable.
7123 [Lutz Jaenicke, Bodo Moeller]
7125 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
7126 if the SSL_R_LENGTH_MISMATCH error is detected.
7127 [Geoff Thorpe, Bodo Moeller]
7129 *) New 'shared_ldflag' column in Configure platform table.
7132 *) Fix EVP_CIPHER_mode macro.
7133 ["Dan S. Camper" <dan@bti.net>]
7135 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
7136 type, we must throw them away by setting rr->length to 0.
7137 [D P Chang <dpc@qualys.com>]
7139 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
7141 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
7142 <Dominikus.Scherkl@biodata.com>. (The previous implementation
7143 worked incorrectly for those cases where range = 10..._2 and
7144 3*range is two bits longer than range.)
7147 *) Only add signing time to PKCS7 structures if it is not already
7151 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
7152 OBJ_ld_ce should be OBJ_id_ce.
7153 Also some ip-pda OIDs in crypto/objects/objects.txt were
7154 incorrect (cf. RFC 3039).
7155 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
7157 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
7158 returns early because it has nothing to do.
7159 [Andy Schneider <andy.schneider@bjss.co.uk>]
7161 *) [In 0.9.6c-engine release:]
7162 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
7163 [Andy Schneider <andy.schneider@bjss.co.uk>]
7165 *) [In 0.9.6c-engine release:]
7166 Add support for Cryptographic Appliance's keyserver technology.
7167 (Use engine 'keyclient')
7168 [Cryptographic Appliances and Geoff Thorpe]
7170 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
7171 is called via tools/c89.sh because arguments have to be
7172 rearranged (all '-L' options must appear before the first object
7174 [Richard Shapiro <rshapiro@abinitio.com>]
7176 *) [In 0.9.6c-engine release:]
7177 Add support for Broadcom crypto accelerator cards, backported
7179 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
7181 *) [In 0.9.6c-engine release:]
7182 Add support for SureWare crypto accelerator cards from
7183 Baltimore Technologies. (Use engine 'sureware')
7184 [Baltimore Technologies and Mark Cox]
7186 *) [In 0.9.6c-engine release:]
7187 Add support for crypto accelerator cards from Accelerated
7188 Encryption Processing, www.aep.ie. (Use engine 'aep')
7189 [AEP Inc. and Mark Cox]
7191 *) Add a configuration entry for gcc on UnixWare.
7192 [Gary Benson <gbenson@redhat.com>]
7194 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
7195 messages are stored in a single piece (fixed-length part and
7196 variable-length part combined) and fix various bugs found on the way.
7199 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
7200 instead. BIO_gethostbyname() does not know what timeouts are
7201 appropriate, so entries would stay in cache even when they have
7203 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
7205 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
7206 faced with a pathologically small ClientHello fragment that does
7207 not contain client_version: Instead of aborting with an error,
7208 simply choose the highest available protocol version (i.e.,
7209 TLS 1.0 unless it is disabled). In practice, ClientHello
7210 messages are never sent like this, but this change gives us
7211 strictly correct behaviour at least for TLS.
7214 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
7215 never resets s->method to s->ctx->method when called from within
7216 one of the SSL handshake functions.
7217 [Bodo Moeller; problem pointed out by Niko Baric]
7219 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
7220 (sent using the client's version number) if client_version is
7221 smaller than the protocol version in use. Also change
7222 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
7223 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
7224 the client will at least see that alert.
7227 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7231 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7232 client receives HelloRequest while in a handshake.
7233 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7235 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7236 should end in 'break', not 'goto end' which circumvents various
7237 cleanups done in state SSL_ST_OK. But session related stuff
7238 must be disabled for SSL_ST_OK in the case that we just sent a
7241 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7242 before just sending a HelloRequest.
7243 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7245 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7246 reveal whether illegal block cipher padding was found or a MAC
7247 verification error occured. (Neither SSLerr() codes nor alerts
7248 are directly visible to potential attackers, but the information
7249 may leak via logfiles.)
7251 Similar changes are not required for the SSL 2.0 implementation
7252 because the number of padding bytes is sent in clear for SSL 2.0,
7253 and the extra bytes are just ignored. However ssl/s2_pkt.c
7254 failed to verify that the purported number of padding bytes is in
7258 *) Add OpenUNIX-8 support including shared libraries
7259 (Boyd Lynn Gerber <gerberb@zenez.com>).
7262 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7263 'wristwatch attack' using huge encoding parameters (cf.
7264 James H. Manger's CRYPTO 2001 paper). Note that the
7265 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7266 encoding parameters and hence was not vulnerable.
7269 *) BN_sqr() bug fix.
7270 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7272 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7273 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7274 followed by modular reduction.
7275 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7277 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7278 equivalent based on BN_pseudo_rand() instead of BN_rand().
7281 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7282 This function was broken, as the check for a new client hello message
7283 to handle SGC did not allow these large messages.
7284 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7287 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7290 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7291 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7294 *) Rework the configuration and shared library support for Tru64 Unix.
7295 The configuration part makes use of modern compiler features and
7296 still retains old compiler behavior for those that run older versions
7297 of the OS. The shared library support part includes a variant that
7298 uses the RPATH feature, and is available through the special
7299 configuration target "alpha-cc-rpath", which will never be selected
7301 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7303 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7304 with the same message size as in ssl3_get_certificate_request().
7305 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7306 messages might inadvertently be reject as too long.
7307 [Petr Lampa <lampa@fee.vutbr.cz>]
7309 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7312 *) Modified SSL library such that the verify_callback that has been set
7313 specificly for an SSL object with SSL_set_verify() is actually being
7314 used. Before the change, a verify_callback set with this function was
7315 ignored and the verify_callback() set in the SSL_CTX at the time of
7316 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7317 to allow the necessary settings.
7320 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7321 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7322 done automatically (in contradiction to the requirements of the C
7323 standard). This made problems when used from OpenSSH.
7326 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7327 dh->length and always used
7329 BN_rand_range(priv_key, dh->p).
7331 BN_rand_range() is not necessary for Diffie-Hellman, and this
7332 specific range makes Diffie-Hellman unnecessarily inefficient if
7333 dh->length (recommended exponent length) is much smaller than the
7334 length of dh->p. We could use BN_rand_range() if the order of
7335 the subgroup was stored in the DH structure, but we only have
7340 BN_rand(priv_key, l, ...)
7342 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7348 RSA_eay_public_encrypt
7349 RSA_eay_private_decrypt
7350 RSA_eay_private_encrypt (signing)
7351 RSA_eay_public_decrypt (signature verification)
7353 (default implementations for RSA_public_encrypt,
7354 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7355 always reject numbers >= n.
7358 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7359 to synchronize access to 'locking_thread'. This is necessary on
7360 systems where access to 'locking_thread' (an 'unsigned long'
7361 variable) is not atomic.
7364 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7365 *before* setting the 'crypto_lock_rand' flag. The previous code had
7366 a race condition if 0 is a valid thread ID.
7367 [Travis Vitek <vitek@roguewave.com>]
7369 *) Add support for shared libraries under Irix.
7370 [Albert Chin-A-Young <china@thewrittenword.com>]
7372 *) Add configuration option to build on Linux on both big-endian and
7374 [Ralf Baechle <ralf@uni-koblenz.de>]
7376 *) Add the possibility to create shared libraries on HP-UX.
7379 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7381 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7382 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7383 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7384 PRNG state recovery was possible based on the output of
7385 one PRNG request appropriately sized to gain knowledge on
7386 'md' followed by enough consecutive 1-byte PRNG requests
7387 to traverse all of 'state'.
7389 1. When updating 'md_local' (the current thread's copy of 'md')
7390 during PRNG output generation, hash all of the previous
7391 'md_local' value, not just the half used for PRNG output.
7393 2. Make the number of bytes from 'state' included into the hash
7394 independent from the number of PRNG bytes requested.
7396 The first measure alone would be sufficient to avoid
7397 Markku-Juhani's attack. (Actually it had never occurred
7398 to me that the half of 'md_local' used for chaining was the
7399 half from which PRNG output bytes were taken -- I had always
7400 assumed that the secret half would be used.) The second
7401 measure makes sure that additional data from 'state' is never
7402 mixed into 'md_local' in small portions; this heuristically
7403 further strengthens the PRNG.
7406 *) Fix crypto/bn/asm/mips3.s.
7409 *) When only the key is given to "enc", the IV is undefined. Print out
7410 an error message in this case.
7413 *) Handle special case when X509_NAME is empty in X509 printing routines.
7416 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7417 positive and less than q.
7420 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7421 used: it isn't thread safe and the add_lock_callback should handle
7423 [Paul Rose <Paul.Rose@bridge.com>]
7425 *) Verify that incoming data obeys the block size in
7426 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7430 [Ulf Möller, Bodo Möller]
7432 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7433 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7434 when fixing the server behaviour for backwards-compatible 'client
7435 hello' messages. (Note that the attack is impractical against
7436 SSL 3.0 and TLS 1.0 anyway because length and version checking
7437 means that the probability of guessing a valid ciphertext is
7438 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7441 Before 0.9.5, the countermeasure (hide the error by generating a
7442 random 'decryption result') did not work properly because
7443 ERR_clear_error() was missing, meaning that SSL_get_error() would
7444 detect the supposedly ignored error.
7446 Both problems are now fixed.
7449 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7450 (previously it was 1024).
7453 *) Fix for compatibility mode trust settings: ignore trust settings
7454 unless some valid trust or reject settings are present.
7457 *) Fix for blowfish EVP: its a variable length cipher.
7460 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7461 parameters in DSA public key structures and return an error in the
7462 DSA routines if parameters are absent.
7465 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7466 in the current directory if neither $RANDFILE nor $HOME was set.
7467 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7468 caused some confusion to Windows users who haven't defined $HOME.
7469 Thus RAND_file_name() is changed again: e_os.h can define a
7470 DEFAULT_HOME, which will be used if $HOME is not set.
7471 For Windows, we use "C:"; on other platforms, we still require
7472 environment variables.
7474 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7475 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7476 having multiple threads call RAND_poll() concurrently.
7479 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7480 combination of a flag and a thread ID variable.
7481 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7482 flag), *other* threads can enter ssleay_add_bytes without obeying
7483 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7484 that they do not hold after the first thread unsets add_do_not_lock).
7487 *) Change bctest again: '-x' expressions are not available in all
7491 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7493 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7494 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7496 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7497 the default extension for executables, if any. Also, make the perl
7498 scripts that use symlink() to test if it really exists and use "cp"
7499 if it doesn't. All this made OpenSSL compilable and installable in
7503 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7504 If SEQUENCE is length is indefinite just set c->slen to the total
7505 amount of data available.
7506 [Steve Henson, reported by shige@FreeBSD.org]
7507 [This change does not apply to 0.9.7.]
7509 *) Change bctest to avoid here-documents inside command substitution
7510 (workaround for FreeBSD /bin/sh bug).
7511 For compatibility with Ultrix, avoid shell functions (introduced
7512 in the bctest version that searches along $PATH).
7515 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7516 with des_encrypt() defined on some operating systems, like Solaris
7520 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7521 On the Importance of Eliminating Errors in Cryptographic
7522 Computations, J. Cryptology 14 (2001) 2, 101-119,
7523 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7526 *) MIPS assembler BIGNUM division bug fix.
7529 *) Disabled incorrect Alpha assembler code.
7532 *) Fix PKCS#7 decode routines so they correctly update the length
7533 after reading an EOC for the EXPLICIT tag.
7535 [This change does not apply to 0.9.7.]
7537 *) Fix bug in PKCS#12 key generation routines. This was triggered
7538 if a 3DES key was generated with a 0 initial byte. Include
7539 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7540 (but broken) behaviour.
7543 *) Enhance bctest to search for a working bc along $PATH and print
7545 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7547 *) Fix memory leaks in err.c: free err_data string if necessary;
7548 don't write to the wrong index in ERR_set_error_data.
7551 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7555 *) Replace rdtsc with _emit statements for VC++ version 5.
7556 [Jeremy Cooper <jeremy@baymoo.org>]
7558 *) Make it possible to reuse SSLv2 sessions.
7561 *) In copy_email() check for >= 0 as a return value for
7562 X509_NAME_get_index_by_NID() since 0 is a valid index.
7563 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7565 *) Avoid coredump with unsupported or invalid public keys by checking if
7566 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7567 PKCS7_verify() fails with non detached data.
7570 *) Don't use getenv in library functions when run as setuid/setgid.
7571 New function OPENSSL_issetugid().
7574 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7575 due to incorrect handling of multi-threading:
7577 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7579 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7581 3. Count how many times MemCheck_off() has been called so that
7582 nested use can be treated correctly. This also avoids
7583 inband-signalling in the previous code (which relied on the
7584 assumption that thread ID 0 is impossible).
7587 *) Add "-rand" option also to s_client and s_server.
7590 *) Fix CPU detection on Irix 6.x.
7591 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7592 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7594 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7597 [This change does not apply to 0.9.7.]
7599 *) Use the cached encoding of an X509_NAME structure rather than
7600 copying it. This is apparently the reason for the libsafe "errors"
7601 but the code is actually correct.
7604 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7605 Bleichenbacher's DSA attack.
7606 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
7607 to be set and top=0 forces the highest bit to be set; top=-1 is new
7608 and leaves the highest bit random.
7609 [Ulf Moeller, Bodo Moeller]
7611 *) In the NCONF_...-based implementations for CONF_... queries
7612 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
7613 a temporary CONF structure with the data component set to NULL
7614 (which gives segmentation faults in lh_retrieve).
7615 Instead, use NULL for the CONF pointer in CONF_get_string and
7616 CONF_get_number (which may use environment variables) and directly
7617 return NULL from CONF_get_section.
7620 *) Fix potential buffer overrun for EBCDIC.
7623 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
7624 keyUsage if basicConstraints absent for a CA.
7627 *) Make SMIME_write_PKCS7() write mail header values with a format that
7628 is more generally accepted (no spaces before the semicolon), since
7629 some programs can't parse those values properly otherwise. Also make
7630 sure BIO's that break lines after each write do not create invalid
7634 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
7635 macros previously used would not encode an empty SEQUENCE OF
7636 and break the signature.
7638 [This change does not apply to 0.9.7.]
7640 *) Zero the premaster secret after deriving the master secret in
7644 *) Add some EVP_add_digest_alias registrations (as found in
7645 OpenSSL_add_all_digests()) to SSL_library_init()
7646 aka OpenSSL_add_ssl_algorithms(). This provides improved
7647 compatibility with peers using X.509 certificates
7648 with unconventional AlgorithmIdentifier OIDs.
7651 *) Fix for Irix with NO_ASM.
7652 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7654 *) ./config script fixes.
7655 [Ulf Moeller, Richard Levitte]
7657 *) Fix 'openssl passwd -1'.
7660 *) Change PKCS12_key_gen_asc() so it can cope with non null
7661 terminated strings whose length is passed in the passlen
7662 parameter, for example from PEM callbacks. This was done
7663 by adding an extra length parameter to asc2uni().
7664 [Steve Henson, reported by <oddissey@samsung.co.kr>]
7666 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
7667 call failed, free the DSA structure.
7670 *) Fix to uni2asc() to cope with zero length Unicode strings.
7671 These are present in some PKCS#12 files.
7674 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
7675 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
7676 when writing a 32767 byte record.
7677 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
7679 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
7680 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
7682 (RSA objects have a reference count access to which is protected
7683 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
7684 so they are meant to be shared between threads.)
7685 [Bodo Moeller, Geoff Thorpe; original patch submitted by
7686 "Reddie, Steven" <Steven.Reddie@ca.com>]
7688 *) Fix a deadlock in CRYPTO_mem_leaks().
7691 *) Use better test patterns in bntest.
7694 *) rand_win.c fix for Borland C.
7697 *) BN_rshift bugfix for n == 0.
7700 *) Add a 'bctest' script that checks for some known 'bc' bugs
7701 so that 'make test' does not abort just because 'bc' is broken.
7704 *) Store verify_result within SSL_SESSION also for client side to
7705 avoid potential security hole. (Re-used sessions on the client side
7706 always resulted in verify_result==X509_V_OK, not using the original
7707 result of the server certificate verification.)
7710 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
7711 SSL3_RT_APPLICATION_DATA, return 0.
7712 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
7716 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
7717 releases, have been re-implemented by renaming the previous
7718 implementations of ssl2_read and ssl3_read to ssl2_read_internal
7719 and ssl3_read_internal, respectively, and adding 'peek' parameters
7720 to them. The new ssl[23]_{read,peek} functions are calls to
7721 ssl[23]_read_internal with the 'peek' flag set appropriately.
7722 A 'peek' parameter has also been added to ssl3_read_bytes, which
7723 does the actual work for ssl3_read_internal.
7726 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7727 the method-specific "init()" handler. Also clean up ex_data after
7728 calling the method-specific "finish()" handler. Previously, this was
7729 happening the other way round.
7732 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7733 The previous value, 12, was not always sufficient for BN_mod_exp().
7736 *) Make sure that shared libraries get the internal name engine with
7737 the full version number and not just 0. This should mark the
7738 shared libraries as not backward compatible. Of course, this should
7739 be changed again when we can guarantee backward binary compatibility.
7742 *) Fix typo in get_cert_by_subject() in by_dir.c
7743 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7745 *) Rework the system to generate shared libraries:
7747 - Make note of the expected extension for the shared libraries and
7748 if there is a need for symbolic links from for example libcrypto.so.0
7749 to libcrypto.so.0.9.7. There is extended info in Configure for
7752 - Make as few rebuilds of the shared libraries as possible.
7754 - Still avoid linking the OpenSSL programs with the shared libraries.
7756 - When installing, install the shared libraries separately from the
7760 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7762 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7763 and not in SSL_clear because the latter is also used by the
7764 accept/connect functions; previously, the settings made by
7765 SSL_set_read_ahead would be lost during the handshake.
7766 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7768 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7769 Previously, it would create entries for disabled algorithms no
7773 *) Added several new manual pages for SSL_* function.
7776 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7778 *) In ssl23_get_client_hello, generate an error message when faced
7779 with an initial SSL 3.0/TLS record that is too small to contain the
7780 first two bytes of the ClientHello message, i.e. client_version.
7781 (Note that this is a pathologic case that probably has never happened
7782 in real life.) The previous approach was to use the version number
7783 from the record header as a substitute; but our protocol choice
7784 should not depend on that one because it is not authenticated
7785 by the Finished messages.
7788 *) More robust randomness gathering functions for Windows.
7789 [Jeffrey Altman <jaltman@columbia.edu>]
7791 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7792 not set then we don't setup the error code for issuer check errors
7793 to avoid possibly overwriting other errors which the callback does
7794 handle. If an application does set the flag then we assume it knows
7795 what it is doing and can handle the new informational codes
7799 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7800 a general "ANY" type, as such it should be able to decode anything
7801 including tagged types. However it didn't check the class so it would
7802 wrongly interpret tagged types in the same way as their universal
7803 counterpart and unknown types were just rejected. Changed so that the
7804 tagged and unknown types are handled in the same way as a SEQUENCE:
7805 that is the encoding is stored intact. There is also a new type
7806 "V_ASN1_OTHER" which is used when the class is not universal, in this
7807 case we have no idea what the actual type is so we just lump them all
7811 *) On VMS, stdout may very well lead to a file that is written to
7812 in a record-oriented fashion. That means that every write() will
7813 write a separate record, which will be read separately by the
7814 programs trying to read from it. This can be very confusing.
7816 The solution is to put a BIO filter in the way that will buffer
7817 text until a linefeed is reached, and then write everything a
7818 line at a time, so every record written will be an actual line,
7819 not chunks of lines and not (usually doesn't happen, but I've
7820 seen it once) several lines in one record. BIO_f_linebuffer() is
7823 Currently, it's a VMS-only method, because that's where it has
7824 been tested well enough.
7827 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7828 it can return incorrect results.
7829 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7830 but it was in 0.9.6-beta[12].)
7833 *) Disable the check for content being present when verifying detached
7834 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7835 include zero length content when signing messages.
7838 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7839 BIO_ctrl (for BIO pairs).
7842 *) Add DSO method for VMS.
7845 *) Bug fix: Montgomery multiplication could produce results with the
7849 *) Add RPM specification openssl.spec and modify it to build three
7850 packages. The default package contains applications, application
7851 documentation and run-time libraries. The devel package contains
7852 include files, static libraries and function documentation. The
7853 doc package contains the contents of the doc directory. The original
7854 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7857 *) Add a large number of documentation files for many SSL routines.
7858 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7860 *) Add a configuration entry for Sony News 4.
7861 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7863 *) Don't set the two most significant bits to one when generating a
7864 random number < q in the DSA library.
7867 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7868 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7869 the underlying transport is blocking) if a handshake took place.
7870 (The default behaviour is needed by applications such as s_client
7871 and s_server that use select() to determine when to use SSL_read;
7872 but for applications that know in advance when to expect data, it
7873 just makes things more complicated.)
7876 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7880 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7881 work better on such systems.
7882 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7884 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7885 Update PKCS12_parse() so it copies the friendlyName and the
7886 keyid to the certificates aux info.
7889 *) Fix bug in PKCS7_verify() which caused an infinite loop
7890 if there was more than one signature.
7891 [Sven Uszpelkat <su@celocom.de>]
7893 *) Major change in util/mkdef.pl to include extra information
7894 about each symbol, as well as presenting variables as well
7895 as functions. This change means that there's n more need
7896 to rebuild the .num files when some algorithms are excluded.
7899 *) Allow the verify time to be set by an application,
7900 rather than always using the current time.
7903 *) Phase 2 verify code reorganisation. The certificate
7904 verify code now looks up an issuer certificate by a
7905 number of criteria: subject name, authority key id
7906 and key usage. It also verifies self signed certificates
7907 by the same criteria. The main comparison function is
7908 X509_check_issued() which performs these checks.
7910 Lot of changes were necessary in order to support this
7911 without completely rewriting the lookup code.
7913 Authority and subject key identifier are now cached.
7915 The LHASH 'certs' is X509_STORE has now been replaced
7916 by a STACK_OF(X509_OBJECT). This is mainly because an
7917 LHASH can't store or retrieve multiple objects with
7918 the same hash value.
7920 As a result various functions (which were all internal
7921 use only) have changed to handle the new X509_STORE
7922 structure. This will break anything that messed round
7923 with X509_STORE internally.
7925 The functions X509_STORE_add_cert() now checks for an
7926 exact match, rather than just subject name.
7928 The X509_STORE API doesn't directly support the retrieval
7929 of multiple certificates matching a given criteria, however
7930 this can be worked round by performing a lookup first
7931 (which will fill the cache with candidate certificates)
7932 and then examining the cache for matches. This is probably
7933 the best we can do without throwing out X509_LOOKUP
7934 entirely (maybe later...).
7936 The X509_VERIFY_CTX structure has been enhanced considerably.
7938 All certificate lookup operations now go via a get_issuer()
7939 callback. Although this currently uses an X509_STORE it
7940 can be replaced by custom lookups. This is a simple way
7941 to bypass the X509_STORE hackery necessary to make this
7942 work and makes it possible to use more efficient techniques
7943 in future. A very simple version which uses a simple
7944 STACK for its trusted certificate store is also provided
7945 using X509_STORE_CTX_trusted_stack().
7947 The verify_cb() and verify() callbacks now have equivalents
7948 in the X509_STORE_CTX structure.
7950 X509_STORE_CTX also has a 'flags' field which can be used
7951 to customise the verify behaviour.
7954 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7955 excludes S/MIME capabilities.
7958 *) When a certificate request is read in keep a copy of the
7959 original encoding of the signed data and use it when outputing
7960 again. Signatures then use the original encoding rather than
7961 a decoded, encoded version which may cause problems if the
7962 request is improperly encoded.
7965 *) For consistency with other BIO_puts implementations, call
7966 buffer_write(b, ...) directly in buffer_puts instead of calling
7969 In BIO_puts, increment b->num_write as in BIO_write.
7970 [Peter.Sylvester@EdelWeb.fr]
7972 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7973 BN_zero, we may not return a BIGNUM with an array consisting of
7977 *) Avoid calling abort() from within the library when problems are
7978 detected, except if preprocessor symbols have been defined
7979 (such as REF_CHECK, BN_DEBUG etc.).
7982 *) New openssl application 'rsautl'. This utility can be
7983 used for low level RSA operations. DER public key
7984 BIO/fp routines also added.
7987 *) New Configure entry and patches for compiling on QNX 4.
7988 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7990 *) A demo state-machine implementation was sponsored by
7991 Nuron (http://www.nuron.com/) and is now available in
7992 demos/state_machine.
7995 *) New options added to the 'dgst' utility for signature
7996 generation and verification.
7999 *) Unrecognized PKCS#7 content types are now handled via a
8000 catch all ASN1_TYPE structure. This allows unsupported
8001 types to be stored as a "blob" and an application can
8002 encode and decode it manually.
8005 *) Fix various signed/unsigned issues to make a_strex.c
8007 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
8009 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
8010 length if passed a buffer. ASN1_INTEGER_to_BN failed
8011 if passed a NULL BN and its argument was negative.
8012 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
8014 *) Modification to PKCS#7 encoding routines to output definite
8015 length encoding. Since currently the whole structures are in
8016 memory there's not real point in using indefinite length
8017 constructed encoding. However if OpenSSL is compiled with
8018 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
8021 *) Added BIO_vprintf() and BIO_vsnprintf().
8024 *) Added more prefixes to parse for in the the strings written
8025 through a logging bio, to cover all the levels that are available
8026 through syslog. The prefixes are now:
8028 PANIC, EMERG, EMR => LOG_EMERG
8029 ALERT, ALR => LOG_ALERT
8030 CRIT, CRI => LOG_CRIT
8031 ERROR, ERR => LOG_ERR
8032 WARNING, WARN, WAR => LOG_WARNING
8033 NOTICE, NOTE, NOT => LOG_NOTICE
8034 INFO, INF => LOG_INFO
8035 DEBUG, DBG => LOG_DEBUG
8037 and as before, if none of those prefixes are present at the
8038 beginning of the string, LOG_ERR is chosen.
8040 On Win32, the LOG_* levels are mapped according to this:
8042 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
8043 LOG_WARNING => EVENTLOG_WARNING_TYPE
8044 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
8048 *) Made it possible to reconfigure with just the configuration
8049 argument "reconf" or "reconfigure". The command line arguments
8050 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
8051 and are retrieved from there when reconfiguring.
8055 [Assar Westerlund <assar@sics.se>, Richard Levitte]
8057 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
8060 *) The obj_dat.pl script was messing up the sorting of object
8061 names. The reason was that it compared the quoted version
8062 of strings as a result "OCSP" > "OCSP Signing" because
8063 " > SPACE. Changed script to store unquoted versions of
8064 names and add quotes on output. It was also omitting some
8065 names from the lookup table if they were given a default
8066 value (that is if SN is missing it is given the same
8067 value as LN and vice versa), these are now added on the
8068 grounds that if an object has a name we should be able to
8069 look it up. Finally added warning output when duplicate
8070 short or long names are found.
8073 *) Changes needed for Tandem NSK.
8074 [Scott Uroff <scott@xypro.com>]
8076 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
8077 RSA_padding_check_SSLv23(), special padding was never detected
8078 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
8079 version rollback attacks was not effective.
8081 In s23_clnt.c, don't use special rollback-attack detection padding
8082 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
8083 client; similarly, in s23_srvr.c, don't do the rollback check if
8084 SSL 2.0 is the only protocol enabled in the server.
8087 *) Make it possible to get hexdumps of unprintable data with 'openssl
8088 asn1parse'. By implication, the functions ASN1_parse_dump() and
8089 BIO_dump_indent() are added.
8092 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
8093 these print out strings and name structures based on various
8094 flags including RFC2253 support and proper handling of
8095 multibyte characters. Added options to the 'x509' utility
8096 to allow the various flags to be set.
8099 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
8100 Also change the functions X509_cmp_current_time() and
8101 X509_gmtime_adj() work with an ASN1_TIME structure,
8102 this will enable certificates using GeneralizedTime in validity
8103 dates to be checked.
8106 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
8107 negative public key encodings) on by default,
8108 NO_NEG_PUBKEY_BUG can be set to disable it.
8111 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
8112 content octets. An i2c_ASN1_OBJECT is unnecessary because
8113 the encoding can be trivially obtained from the structure.
8116 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
8117 not read locks (CRYPTO_r_[un]lock).
8120 *) A first attempt at creating official support for shared
8121 libraries through configuration. I've kept it so the
8122 default is static libraries only, and the OpenSSL programs
8123 are always statically linked for now, but there are
8124 preparations for dynamic linking in place.
8125 This has been tested on Linux and Tru64.
8128 *) Randomness polling function for Win9x, as described in:
8129 Peter Gutmann, Software Generation of Practically Strong
8133 *) Fix so PRNG is seeded in req if using an already existing
8137 *) New options to smime application. -inform and -outform
8138 allow alternative formats for the S/MIME message including
8139 PEM and DER. The -content option allows the content to be
8140 specified separately. This should allow things like Netscape
8141 form signing output easier to verify.
8144 *) Fix the ASN1 encoding of tags using the 'long form'.
8147 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
8148 STRING types. These convert content octets to and from the
8149 underlying type. The actual tag and length octets are
8150 already assumed to have been read in and checked. These
8151 are needed because all other string types have virtually
8152 identical handling apart from the tag. By having versions
8153 of the ASN1 functions that just operate on content octets
8154 IMPLICIT tagging can be handled properly. It also allows
8155 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
8156 and ASN1_INTEGER are identical apart from the tag.
8159 *) Change the handling of OID objects as follows:
8161 - New object identifiers are inserted in objects.txt, following
8162 the syntax given in objects.README.
8163 - objects.pl is used to process obj_mac.num and create a new
8165 - obj_dat.pl is used to create a new obj_dat.h, using the data in
8168 This is currently kind of a hack, and the perl code in objects.pl
8169 isn't very elegant, but it works as I intended. The simplest way
8170 to check that it worked correctly is to look in obj_dat.h and
8171 check the array nid_objs and make sure the objects haven't moved
8172 around (this is important!). Additions are OK, as well as
8173 consistent name changes.
8176 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
8179 *) Addition of the command line parameter '-rand file' to 'openssl req'.
8180 The given file adds to whatever has already been seeded into the
8181 random pool through the RANDFILE configuration file option or
8182 environment variable, or the default random state file.
8185 *) mkstack.pl now sorts each macro group into lexical order.
8186 Previously the output order depended on the order the files
8187 appeared in the directory, resulting in needless rewriting
8191 *) Patches to make OpenSSL compile under Win32 again. Mostly
8192 work arounds for the VC++ problem that it treats func() as
8193 func(void). Also stripped out the parts of mkdef.pl that
8194 added extra typesafe functions: these no longer exist.
8197 *) Reorganisation of the stack code. The macros are now all
8198 collected in safestack.h . Each macro is defined in terms of
8199 a "stack macro" of the form SKM_<name>(type, a, b). The
8200 DEBUG_SAFESTACK is now handled in terms of function casts,
8201 this has the advantage of retaining type safety without the
8202 use of additional functions. If DEBUG_SAFESTACK is not defined
8203 then the non typesafe macros are used instead. Also modified the
8204 mkstack.pl script to handle the new form. Needs testing to see
8205 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
8206 the default if no major problems. Similar behaviour for ASN1_SET_OF
8207 and PKCS12_STACK_OF.
8210 *) When some versions of IIS use the 'NET' form of private key the
8211 key derivation algorithm is different. Normally MD5(password) is
8212 used as a 128 bit RC4 key. In the modified case
8213 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
8214 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
8215 as the old Netscape_RSA functions except they have an additional
8216 'sgckey' parameter which uses the modified algorithm. Also added
8217 an -sgckey command line option to the rsa utility. Thanks to
8218 Adrian Peck <bertie@ncipher.com> for posting details of the modified
8219 algorithm to openssl-dev.
8222 *) The evp_local.h macros were using 'c.##kname' which resulted in
8223 invalid expansion on some systems (SCO 5.0.5 for example).
8224 Corrected to 'c.kname'.
8225 [Phillip Porch <root@theporch.com>]
8227 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8228 a STACK of email addresses from a certificate or request, these look
8229 in the subject name and the subject alternative name extensions and
8230 omit any duplicate addresses.
8233 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8234 This makes DSA verification about 2 % faster.
8237 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8238 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8239 plus overhead for 1024 bit moduli).
8240 This makes exponentiations about 0.5 % faster for 1024 bit
8241 exponents (as measured by "openssl speed rsa2048").
8244 *) Rename memory handling macros to avoid conflicts with other
8246 Malloc => OPENSSL_malloc
8247 Malloc_locked => OPENSSL_malloc_locked
8248 Realloc => OPENSSL_realloc
8249 Free => OPENSSL_free
8252 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8253 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8256 *) CygWin32 support.
8257 [John Jarvie <jjarvie@newsguy.com>]
8259 *) The type-safe stack code has been rejigged. It is now only compiled
8260 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8261 by default all type-specific stack functions are "#define"d back to
8262 standard stack functions. This results in more streamlined output
8263 but retains the type-safety checking possibilities of the original
8267 *) The STACK code has been cleaned up, and certain type declarations
8268 that didn't make a lot of sense have been brought in line. This has
8269 also involved a cleanup of sorts in safestack.h to more correctly
8270 map type-safe stack functions onto their plain stack counterparts.
8271 This work has also resulted in a variety of "const"ifications of
8272 lots of the code, especially "_cmp" operations which should normally
8273 be prototyped with "const" parameters anyway.
8276 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8277 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8278 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8279 where all of 'md' is used each time the PRNG is used, but 'state'
8280 is used only indexed by a cyclic counter. As entropy may not be
8281 well distributed from the beginning, 'md' is important as a
8282 chaining variable. However, the output function chains only half
8283 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8284 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8285 in all of 'state' being rewritten, with the new values depending
8286 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8289 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8290 the handshake is continued after ssl_verify_cert_chain();
8291 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8292 can lead to 'unexplainable' connection aborts later.
8293 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8295 *) Major EVP API cipher revision.
8296 Add hooks for extra EVP features. This allows various cipher
8297 parameters to be set in the EVP interface. Support added for variable
8298 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8299 setting of RC2 and RC5 parameters.
8301 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8304 Remove lots of duplicated code from the EVP library. For example *every*
8305 cipher init() function handles the 'iv' in the same way according to the
8306 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8307 for CFB and OFB modes they zero ctx->num.
8309 New functionality allows removal of S/MIME code RC2 hack.
8311 Most of the routines have the same form and so can be declared in terms
8314 By shifting this to the top level EVP_CipherInit() it can be removed from
8315 all individual ciphers. If the cipher wants to handle IVs or keys
8316 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8319 Change lots of functions like EVP_EncryptUpdate() to now return a
8320 value: although software versions of the algorithms cannot fail
8321 any installed hardware versions can.
8324 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8325 this option is set, tolerate broken clients that send the negotiated
8326 protocol version number instead of the requested protocol version
8330 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8331 i.e. non-zero for export ciphersuites, zero otherwise.
8332 Previous versions had this flag inverted, inconsistent with
8333 rsa_tmp_cb (..._TMP_RSA_CB).
8334 [Bodo Moeller; problem reported by Amit Chopra]
8336 *) Add missing DSA library text string. Work around for some IIS
8337 key files with invalid SEQUENCE encoding.
8340 *) Add a document (doc/standards.txt) that list all kinds of standards
8341 and so on that are implemented in OpenSSL.
8344 *) Enhance c_rehash script. Old version would mishandle certificates
8345 with the same subject name hash and wouldn't handle CRLs at all.
8346 Added -fingerprint option to crl utility, to support new c_rehash
8350 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8353 *) Fix for SSL server purpose checking. Server checking was
8354 rejecting certificates which had extended key usage present
8355 but no ssl client purpose.
8356 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8358 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8359 is a little unclear about how a blank password is handled.
8360 Since the password in encoded as a BMPString with terminating
8361 double NULL a zero length password would end up as just the
8362 double NULL. However no password at all is different and is
8363 handled differently in the PKCS#12 key generation code. NS
8364 treats a blank password as zero length. MSIE treats it as no
8365 password on export: but it will try both on import. We now do
8366 the same: PKCS12_parse() tries zero length and no password if
8367 the password is set to "" or NULL (NULL is now a valid password:
8368 it wasn't before) as does the pkcs12 application.
8371 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8372 perror when PEM_read_bio_X509_REQ fails, the error message must
8373 be obtained from the error queue.
8376 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8377 it in ERR_remove_state if appropriate, and change ERR_get_state
8378 accordingly to avoid race conditions (this is necessary because
8379 thread_hash is no longer constant once set).
8382 *) Bugfix for linux-elf makefile.one.
8385 *) RSA_get_default_method() will now cause a default
8386 RSA_METHOD to be chosen if one doesn't exist already.
8387 Previously this was only set during a call to RSA_new()
8388 or RSA_new_method(NULL) meaning it was possible for
8389 RSA_get_default_method() to return NULL.
8392 *) Added native name translation to the existing DSO code
8393 that will convert (if the flag to do so is set) filenames
8394 that are sufficiently small and have no path information
8395 into a canonical native form. Eg. "blah" converted to
8396 "libblah.so" or "blah.dll" etc.
8399 *) New function ERR_error_string_n(e, buf, len) which is like
8400 ERR_error_string(e, buf), but writes at most 'len' bytes
8401 including the 0 terminator. For ERR_error_string_n, 'buf'
8403 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8405 *) CONF library reworked to become more general. A new CONF
8406 configuration file reader "class" is implemented as well as a
8407 new functions (NCONF_*, for "New CONF") to handle it. The now
8408 old CONF_* functions are still there, but are reimplemented to
8409 work in terms of the new functions. Also, a set of functions
8410 to handle the internal storage of the configuration data is
8411 provided to make it easier to write new configuration file
8412 reader "classes" (I can definitely see something reading a
8413 configuration file in XML format, for example), called _CONF_*,
8414 or "the configuration storage API"...
8416 The new configuration file reading functions are:
8418 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8419 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8421 NCONF_default, NCONF_WIN32
8423 NCONF_dump_fp, NCONF_dump_bio
8425 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8426 NCONF_new creates a new CONF object. This works in the same way
8427 as other interfaces in OpenSSL, like the BIO interface.
8428 NCONF_dump_* dump the internal storage of the configuration file,
8429 which is useful for debugging. All other functions take the same
8430 arguments as the old CONF_* functions wth the exception of the
8431 first that must be a `CONF *' instead of a `LHASH *'.
8433 To make it easer to use the new classes with the old CONF_* functions,
8434 the function CONF_set_default_method is provided.
8437 *) Add '-tls1' option to 'openssl ciphers', which was already
8438 mentioned in the documentation but had not been implemented.
8439 (This option is not yet really useful because even the additional
8440 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8443 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8444 OpenSSL-based applications) load shared libraries and bind to
8445 them in a portable way.
8446 [Geoff Thorpe, with contributions from Richard Levitte]
8448 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8450 *) Make sure _lrotl and _lrotr are only used with MSVC.
8452 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8453 (the default implementation of RAND_status).
8455 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8456 to '-clrext' (= clear extensions), as intended and documented.
8457 [Bodo Moeller; inconsistency pointed out by Michael Attili
8460 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8461 was larger than the MD block size.
8462 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8464 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8465 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8466 using the passed key: if the passed key was a private key the result
8467 of X509_print(), for example, would be to print out all the private key
8471 *) des_quad_cksum() byte order bug fix.
8472 [Ulf Möller, using the problem description in krb4-0.9.7, where
8473 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8475 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8477 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8479 *) For easily testing in shell scripts whether some command
8480 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8481 returns with exit code 0 iff no command of the given name is available.
8482 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8483 the output goes to stdout and nothing is printed to stderr.
8484 Additional arguments are always ignored.
8486 Since for each cipher there is a command of the same name,
8487 the 'no-cipher' compilation switches can be tested this way.
8489 ('openssl no-XXX' is not able to detect pseudo-commands such
8490 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8493 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8496 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8497 is set; it will be thrown away anyway because each handshake creates
8499 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8500 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8501 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8502 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8505 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8506 'Q' and 'R' lose their special meanings (quit/renegotiate).
8507 This is part of what -quiet does; unlike -quiet, -ign_eof
8508 does not suppress any output.
8511 *) Add compatibility options to the purpose and trust code. The
8512 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8513 accepts a certificate or CA, this was the previous behaviour,
8514 with all the associated security issues.
8516 X509_TRUST_COMPAT is the old trust behaviour: only and
8517 automatically trust self signed roots in certificate store. A
8518 new trust setting X509_TRUST_DEFAULT is used to specify that
8519 a purpose has no associated trust setting and it should instead
8520 use the value in the default purpose.
8523 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8524 and fix a memory leak.
8527 *) In util/mkerr.pl (which implements 'make errors'), preserve
8528 reason strings from the previous version of the .c file, as
8529 the default to have only downcase letters (and digits) in
8530 automatically generated reasons codes is not always appropriate.
8533 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8534 using strerror. Previously, ERR_reason_error_string() returned
8535 library names as reason strings for SYSerr; but SYSerr is a special
8536 case where small numbers are errno values, not library numbers.
8539 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8540 converts DSA parameters into DH parameters. (When creating parameters,
8541 DSA_generate_parameters is used.)
8544 *) Include 'length' (recommended exponent length) in C code generated
8545 by 'openssl dhparam -C'.
8548 *) The second argument to set_label in perlasm was already being used
8549 so couldn't be used as a "file scope" flag. Moved to third argument
8553 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8554 instead of RAND_bytes for encryption IVs and salts.
8557 *) Include RAND_status() into RAND_METHOD instead of implementing
8558 it only for md_rand.c Otherwise replacing the PRNG by calling
8559 RAND_set_rand_method would be impossible.
8562 *) Don't let DSA_generate_key() enter an infinite loop if the random
8563 number generation fails.
8566 *) New 'rand' application for creating pseudo-random output.
8569 *) Added configuration support for Linux/IA64
8570 [Rolf Haberrecker <rolf@suse.de>]
8572 *) Assembler module support for Mingw32.
8575 *) Shared library support for HPUX (in shlib/).
8576 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8578 *) Shared library support for Solaris gcc.
8579 [Lutz Behnke <behnke@trustcenter.de>]
8581 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8583 *) PKCS7_encrypt() was adding text MIME headers twice because they
8584 were added manually and by SMIME_crlf_copy().
8587 *) In bntest.c don't call BN_rand with zero bits argument.
8588 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8590 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8591 case was implemented. This caused BN_div_recp() to fail occasionally.
8594 *) Add an optional second argument to the set_label() in the perl
8595 assembly language builder. If this argument exists and is set
8596 to 1 it signals that the assembler should use a symbol whose
8597 scope is the entire file, not just the current function. This
8598 is needed with MASM which uses the format label:: for this scope.
8599 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8601 *) Change the ASN1 types so they are typedefs by default. Before
8602 almost all types were #define'd to ASN1_STRING which was causing
8603 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
8607 *) Change names of new functions to the new get1/get0 naming
8608 convention: After 'get1', the caller owns a reference count
8609 and has to call ..._free; 'get0' returns a pointer to some
8610 data structure without incrementing reference counters.
8611 (Some of the existing 'get' functions increment a reference
8612 counter, some don't.)
8613 Similarly, 'set1' and 'add1' functions increase reference
8614 counters or duplicate objects.
8617 *) Allow for the possibility of temp RSA key generation failure:
8618 the code used to assume it always worked and crashed on failure.
8621 *) Fix potential buffer overrun problem in BIO_printf().
8622 [Ulf Möller, using public domain code by Patrick Powell; problem
8623 pointed out by David Sacerdote <das33@cornell.edu>]
8625 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
8626 RAND_egd() and RAND_status(). In the command line application,
8627 the EGD socket can be specified like a seed file using RANDFILE
8631 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
8632 Some CAs (e.g. Verisign) distribute certificates in this form.
8635 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
8636 list to exclude them. This means that no special compilation option
8637 is needed to use anonymous DH: it just needs to be included in the
8641 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
8642 EVP_MD_type. The old functionality is available in a new macro called
8643 EVP_MD_md(). Change code that uses it and update docs.
8646 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
8647 where the 'void *' argument is replaced by a function pointer argument.
8648 Previously 'void *' was abused to point to functions, which works on
8649 many platforms, but is not correct. As these functions are usually
8650 called by macros defined in OpenSSL header files, most source code
8651 should work without changes.
8654 *) <openssl/opensslconf.h> (which is created by Configure) now contains
8655 sections with information on -D... compiler switches used for
8656 compiling the library so that applications can see them. To enable
8657 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
8658 must be defined. E.g.,
8659 #define OPENSSL_ALGORITHM_DEFINES
8660 #include <openssl/opensslconf.h>
8661 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8662 [Richard Levitte, Ulf and Bodo Möller]
8664 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
8668 *) Change the 'other' type in certificate aux info to a STACK_OF
8669 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
8670 the required ASN1 format: arbitrary types determined by an OID.
8673 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
8674 argument to 'req'. This is not because the function is newer or
8675 better than others it just uses the work 'NEW' in the certificate
8676 request header lines. Some software needs this.
8679 *) Reorganise password command line arguments: now passwords can be
8680 obtained from various sources. Delete the PEM_cb function and make
8681 it the default behaviour: i.e. if the callback is NULL and the
8682 usrdata argument is not NULL interpret it as a null terminated pass
8683 phrase. If usrdata and the callback are NULL then the pass phrase
8684 is prompted for as usual.
8687 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
8688 the support is automatically enabled. The resulting binaries will
8689 autodetect the card and use it if present.
8690 [Ben Laurie and Compaq Inc.]
8692 *) Work around for Netscape hang bug. This sends certificate request
8693 and server done in one record. Since this is perfectly legal in the
8694 SSL/TLS protocol it isn't a "bug" option and is on by default. See
8695 the bugs/SSLv3 entry for more info.
8698 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
8701 *) Add -rand argument to smime and pkcs12 applications and read/write
8705 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
8708 *) Add command line password options to the remaining applications.
8711 *) Bug fix for BN_div_recp() for numerators with an even number of
8715 *) More tests in bntest.c, and changed test_bn output.
8718 *) ./config recognizes MacOS X now.
8721 *) Bug fix for BN_div() when the first words of num and divsor are
8722 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8725 *) Add support for various broken PKCS#8 formats, and command line
8726 options to produce them.
8729 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8730 get temporary BIGNUMs from a BN_CTX.
8733 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8737 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8738 include a #define from the old name to the new. The original intent
8739 was that statically linked binaries could for example just call
8740 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8741 link with digests. This never worked because SSLeay_add_all_digests()
8742 and SSLeay_add_all_ciphers() were in the same source file so calling
8743 one would link with the other. They are now in separate source files.
8746 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8749 *) Use a less unusual form of the Miller-Rabin primality test (it used
8750 a binary algorithm for exponentiation integrated into the Miller-Rabin
8751 loop, our standard modexp algorithms are faster).
8754 *) Support for the EBCDIC character set completed.
8755 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8757 *) Source code cleanups: use const where appropriate, eliminate casts,
8758 use void * instead of char * in lhash.
8761 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8762 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8763 this the server could overwrite ephemeral keys that the client
8767 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8768 using 50 iterations of the Rabin-Miller test.
8770 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8771 iterations of the Rabin-Miller test as required by the appendix
8772 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8773 As BN_is_prime_fasttest includes trial division, DSA parameter
8774 generation becomes much faster.
8776 This implies a change for the callback functions in DSA_is_prime
8777 and DSA_generate_parameters: The callback function is called once
8778 for each positive witness in the Rabin-Miller test, not just
8779 occasionally in the inner loop; and the parameters to the
8780 callback function now provide an iteration count for the outer
8781 loop rather than for the current invocation of the inner loop.
8782 DSA_generate_parameters additionally can call the callback
8783 function with an 'iteration count' of -1, meaning that a
8784 candidate has passed the trial division test (when q is generated
8785 from an application-provided seed, trial division is skipped).
8788 *) New function BN_is_prime_fasttest that optionally does trial
8789 division before starting the Rabin-Miller test and has
8790 an additional BN_CTX * argument (whereas BN_is_prime always
8791 has to allocate at least one BN_CTX).
8792 'callback(1, -1, cb_arg)' is called when a number has passed the
8793 trial division stage.
8796 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8800 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8803 *) New function BN_pseudo_rand().
8806 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8807 bignum version of BN_from_montgomery() with the working code from
8808 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8812 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8813 made it impossible to use the same SSL_SESSION data structure in
8814 SSL2 clients in multiple threads.
8817 *) The return value of RAND_load_file() no longer counts bytes obtained
8818 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8819 to seed the PRNG (previously an explicit byte count was required).
8820 [Ulf Möller, Bodo Möller]
8822 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8823 used (char *) instead of (void *) and had casts all over the place.
8826 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8829 *) Retain source code compatibility for BN_prime_checks macro:
8830 BN_is_prime(..., BN_prime_checks, ...) now uses
8831 BN_prime_checks_for_size to determine the appropriate number of
8832 Rabin-Miller iterations.
8835 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8836 DH_CHECK_P_NOT_SAFE_PRIME.
8837 (Check if this is true? OpenPGP calls them "strong".)
8840 *) Merge the functionality of "dh" and "gendh" programs into a new program
8841 "dhparam". The old programs are retained for now but will handle DH keys
8842 (instead of parameters) in future.
8845 *) Make the ciphers, s_server and s_client programs check the return values
8846 when a new cipher list is set.
8849 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8850 ciphers. Before when the 56bit ciphers were enabled the sorting was
8853 The syntax for the cipher sorting has been extended to support sorting by
8854 cipher-strength (using the strength_bits hard coded in the tables).
8855 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8857 Fix a bug in the cipher-command parser: when supplying a cipher command
8858 string with an "undefined" symbol (neither command nor alphanumeric
8859 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8860 an error is flagged.
8862 Due to the strength-sorting extension, the code of the
8863 ssl_create_cipher_list() function was completely rearranged. I hope that
8864 the readability was also increased :-)
8865 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8867 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8868 for the first serial number and places 2 in the serial number file. This
8869 avoids problems when the root CA is created with serial number zero and
8870 the first user certificate has the same issuer name and serial number
8874 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8875 the new code. Add documentation for this stuff.
8878 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8879 X509_*() to X509at_*() on the grounds that they don't handle X509
8880 structures and behave in an analogous way to the X509v3 functions:
8881 they shouldn't be called directly but wrapper functions should be used
8884 So we also now have some wrapper functions that call the X509at functions
8885 when passed certificate requests. (TO DO: similar things can be done with
8886 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8887 things. Some of these need some d2i or i2d and print functionality
8888 because they handle more complex structures.)
8891 *) Add missing #ifndefs that caused missing symbols when building libssl
8892 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8893 NO_RSA in ssl/s2*.c.
8894 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8896 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8897 has a return value which indicates the quality of the random data
8898 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8899 error queue. New function RAND_pseudo_bytes() generates output that is
8900 guaranteed to be unique but not unpredictable. RAND_add is like
8901 RAND_seed, but takes an extra argument for an entropy estimate
8902 (RAND_seed always assumes full entropy).
8905 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8906 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8907 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8908 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8909 false-positive rate of at most 2^-80 for random input.
8912 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8915 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8916 in the 0.9.5 release), this returns the chain
8917 from an X509_CTX structure with a dup of the stack and all
8918 the X509 reference counts upped: so the stack will exist
8919 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8922 Also make SSL_SESSION_print() print out the verify return
8926 *) Add manpage for the pkcs12 command. Also change the default
8927 behaviour so MAC iteration counts are used unless the new
8928 -nomaciter option is used. This improves file security and
8929 only older versions of MSIE (4.0 for example) need it.
8932 *) Honor the no-xxx Configure options when creating .DEF files.
8935 *) Add PKCS#10 attributes to field table: challengePassword,
8936 unstructuredName and unstructuredAddress. These are taken from
8937 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8938 international characters are used.
8940 More changes to X509_ATTRIBUTE code: allow the setting of types
8941 based on strings. Remove the 'loc' parameter when adding
8942 attributes because these will be a SET OF encoding which is sorted
8946 *) Initial changes to the 'req' utility to allow request generation
8947 automation. This will allow an application to just generate a template
8948 file containing all the field values and have req construct the
8951 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8952 used all over the place including certificate requests and PKCS#7
8953 structures. They are currently handled manually where necessary with
8954 some primitive wrappers for PKCS#7. The new functions behave in a
8955 manner analogous to the X509 extension functions: they allow
8956 attributes to be looked up by NID and added.
8958 Later something similar to the X509V3 code would be desirable to
8959 automatically handle the encoding, decoding and printing of the
8960 more complex types. The string types like challengePassword can
8961 be handled by the string table functions.
8963 Also modified the multi byte string table handling. Now there is
8964 a 'global mask' which masks out certain types. The table itself
8965 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8966 is useful when for example there is only one permissible type
8967 (as in countryName) and using the mask might result in no valid
8971 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8972 SSL_get_peer_finished to allow applications to obtain the latest
8973 Finished messages sent to the peer or expected from the peer,
8974 respectively. (SSL_get_peer_finished is usually the Finished message
8975 actually received from the peer, otherwise the protocol will be aborted.)
8977 As the Finished message are message digests of the complete handshake
8978 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8979 be used for external authentication procedures when the authentication
8980 provided by SSL/TLS is not desired or is not enough.
8983 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8984 the host supports BWX extension and if Compaq C is present on the
8985 $PATH. Just exploiting of the BWX extension results in 20-30%
8986 performance kick for some algorithms, e.g. DES and RC4 to mention
8987 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8991 *) Add support for MS "fast SGC". This is arguably a violation of the
8992 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8993 weak crypto and after checking the certificate is SGC a second one
8994 with strong crypto. MS SGC stops the first handshake after receiving
8995 the server certificate message and sends a second client hello. Since
8996 a server will typically do all the time consuming operations before
8997 expecting any further messages from the client (server key exchange
8998 is the most expensive) there is little difference between the two.
9000 To get OpenSSL to support MS SGC we have to permit a second client
9001 hello message after we have sent server done. In addition we have to
9002 reset the MAC if we do get this second client hello.
9005 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
9006 if a DER encoded private key is RSA or DSA traditional format. Changed
9007 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
9008 format DER encoded private key. Newer code should use PKCS#8 format which
9009 has the key type encoded in the ASN1 structure. Added DER private key
9010 support to pkcs8 application.
9013 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
9014 ciphersuites has been selected (as required by the SSL 3/TLS 1
9015 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
9016 is set, we interpret this as a request to violate the specification
9017 (the worst that can happen is a handshake failure, and 'correct'
9018 behaviour would result in a handshake failure anyway).
9021 *) In SSL_CTX_add_session, take into account that there might be multiple
9022 SSL_SESSION structures with the same session ID (e.g. when two threads
9023 concurrently obtain them from an external cache).
9024 The internal cache can handle only one SSL_SESSION with a given ID,
9025 so if there's a conflict, we now throw out the old one to achieve
9029 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
9030 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
9031 some routines that use cipher OIDs: some ciphers do not have OIDs
9032 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
9036 *) Simplify the trust setting structure and code. Now we just have
9037 two sequences of OIDs for trusted and rejected settings. These will
9038 typically have values the same as the extended key usage extension
9039 and any application specific purposes.
9041 The trust checking code now has a default behaviour: it will just
9042 check for an object with the same NID as the passed id. Functions can
9043 be provided to override either the default behaviour or the behaviour
9044 for a given id. SSL client, server and email already have functions
9045 in place for compatibility: they check the NID and also return "trusted"
9046 if the certificate is self signed.
9049 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
9050 traditional format into an EVP_PKEY structure.
9053 *) Add a password callback function PEM_cb() which either prompts for
9054 a password if usr_data is NULL or otherwise assumes it is a null
9055 terminated password. Allow passwords to be passed on command line
9056 environment or config files in a few more utilities.
9059 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
9060 keys. Add some short names for PKCS#8 PBE algorithms and allow them
9061 to be specified on the command line for the pkcs8 and pkcs12 utilities.
9062 Update documentation.
9065 *) Support for ASN1 "NULL" type. This could be handled before by using
9066 ASN1_TYPE but there wasn't any function that would try to read a NULL
9067 and produce an error if it couldn't. For compatibility we also have
9068 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
9069 don't allocate anything because they don't need to.
9072 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
9074 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
9076 *) Rebuild of the memory allocation routines used by OpenSSL code and
9077 possibly others as well. The purpose is to make an interface that
9078 provide hooks so anyone can build a separate set of allocation and
9079 deallocation routines to be used by OpenSSL, for example memory
9080 pool implementations, or something else, which was previously hard
9081 since Malloc(), Realloc() and Free() were defined as macros having
9082 the values malloc, realloc and free, respectively (except for Win32
9083 compilations). The same is provided for memory debugging code.
9084 OpenSSL already comes with functionality to find memory leaks, but
9085 this gives people a chance to debug other memory problems.
9087 With these changes, a new set of functions and macros have appeared:
9089 CRYPTO_set_mem_debug_functions() [F]
9090 CRYPTO_get_mem_debug_functions() [F]
9091 CRYPTO_dbg_set_options() [F]
9092 CRYPTO_dbg_get_options() [F]
9093 CRYPTO_malloc_debug_init() [M]
9095 The memory debug functions are NULL by default, unless the library
9096 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
9097 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
9098 gives the standard debugging functions that come with OpenSSL) or
9099 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
9100 provided by the library user) must be used. When the standard
9101 debugging functions are used, CRYPTO_dbg_set_options can be used to
9102 request additional information:
9103 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
9104 the CRYPTO_MDEBUG_xxx macro when compiling the library.
9106 Also, things like CRYPTO_set_mem_functions will always give the
9107 expected result (the new set of functions is used for allocation
9108 and deallocation) at all times, regardless of platform and compiler
9111 To finish it up, some functions that were never use in any other
9112 way than through macros have a new API and new semantic:
9115 CRYPTO_dbg_realloc()
9118 All macros of value have retained their old syntax.
9119 [Richard Levitte and Bodo Moeller]
9121 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
9122 ordering of SMIMECapabilities wasn't in "strength order" and there
9123 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
9127 *) Some ASN1 types with illegal zero length encoding (INTEGER,
9128 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
9129 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
9131 *) Merge in my S/MIME library for OpenSSL. This provides a simple
9132 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
9133 functionality to handle multipart/signed properly) and a utility
9134 called 'smime' to call all this stuff. This is based on code I
9135 originally wrote for Celo who have kindly allowed it to be
9136 included in OpenSSL.
9139 *) Add variants des_set_key_checked and des_set_key_unchecked of
9140 des_set_key (aka des_key_sched). Global variable des_check_key
9141 decides which of these is called by des_set_key; this way
9142 des_check_key behaves as it always did, but applications and
9143 the library itself, which was buggy for des_check_key == 1,
9144 have a cleaner way to pick the version they need.
9147 *) New function PKCS12_newpass() which changes the password of a
9151 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
9152 dynamic mix. In both cases the ids can be used as an index into the
9153 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
9154 functions so they accept a list of the field values and the
9155 application doesn't need to directly manipulate the X509_TRUST
9159 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
9163 *) Modify the way the V3 extension code looks up extensions. This now
9164 works in a similar way to the object code: we have some "standard"
9165 extensions in a static table which is searched with OBJ_bsearch()
9166 and the application can add dynamic ones if needed. The file
9167 crypto/x509v3/ext_dat.h now has the info: this file needs to be
9168 updated whenever a new extension is added to the core code and kept
9169 in ext_nid order. There is a simple program 'tabtest.c' which checks
9170 this. New extensions are not added too often so this file can readily
9171 be maintained manually.
9173 There are two big advantages in doing things this way. The extensions
9174 can be looked up immediately and no longer need to be "added" using
9175 X509V3_add_standard_extensions(): this function now does nothing.
9176 [Side note: I get *lots* of email saying the extension code doesn't
9177 work because people forget to call this function]
9178 Also no dynamic allocation is done unless new extensions are added:
9179 so if we don't add custom extensions there is no need to call
9180 X509V3_EXT_cleanup().
9183 *) Modify enc utility's salting as follows: make salting the default. Add a
9184 magic header, so unsalted files fail gracefully instead of just decrypting
9185 to garbage. This is because not salting is a big security hole, so people
9186 should be discouraged from doing it.
9189 *) Fixes and enhancements to the 'x509' utility. It allowed a message
9190 digest to be passed on the command line but it only used this
9191 parameter when signing a certificate. Modified so all relevant
9192 operations are affected by the digest parameter including the
9193 -fingerprint and -x509toreq options. Also -x509toreq choked if a
9194 DSA key was used because it didn't fix the digest.
9197 *) Initial certificate chain verify code. Currently tests the untrusted
9198 certificates for consistency with the verify purpose (which is set
9199 when the X509_STORE_CTX structure is set up) and checks the pathlength.
9201 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
9202 this is because it will reject chains with invalid extensions whereas
9203 every previous version of OpenSSL and SSLeay made no checks at all.
9205 Trust code: checks the root CA for the relevant trust settings. Trust
9206 settings have an initial value consistent with the verify purpose: e.g.
9207 if the verify purpose is for SSL client use it expects the CA to be
9208 trusted for SSL client use. However the default value can be changed to
9209 permit custom trust settings: one example of this would be to only trust
9210 certificates from a specific "secure" set of CAs.
9212 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
9213 which should be used for version portability: especially since the
9214 verify structure is likely to change more often now.
9216 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
9217 to set them. If not set then assume SSL clients will verify SSL servers
9220 Two new options to the verify program: -untrusted allows a set of
9221 untrusted certificates to be passed in and -purpose which sets the
9222 intended purpose of the certificate. If a purpose is set then the
9223 new chain verify code is used to check extension consistency.
9226 *) Support for the authority information access extension.
9229 *) Modify RSA and DSA PEM read routines to transparently handle
9230 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9231 public keys in a format compatible with certificate
9232 SubjectPublicKeyInfo structures. Unfortunately there were already
9233 functions called *_PublicKey_* which used various odd formats so
9234 these are retained for compatibility: however the DSA variants were
9235 never in a public release so they have been deleted. Changed dsa/rsa
9236 utilities to handle the new format: note no releases ever handled public
9237 keys so we should be OK.
9239 The primary motivation for this change is to avoid the same fiasco
9240 that dogs private keys: there are several incompatible private key
9241 formats some of which are standard and some OpenSSL specific and
9242 require various evil hacks to allow partial transparent handling and
9243 even then it doesn't work with DER formats. Given the option anything
9244 other than PKCS#8 should be dumped: but the other formats have to
9245 stay in the name of compatibility.
9247 With public keys and the benefit of hindsight one standard format
9248 is used which works with EVP_PKEY, RSA or DSA structures: though
9249 it clearly returns an error if you try to read the wrong kind of key.
9251 Added a -pubkey option to the 'x509' utility to output the public key.
9252 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9253 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9254 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9255 that do the same as the EVP_PKEY_assign_*() except they up the
9256 reference count of the added key (they don't "swallow" the
9260 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9261 CRLs would fail if the file contained no certificates or no CRLs:
9262 added a new function to read in both types and return the number
9263 read: this means that if none are read it will be an error. The
9264 DER versions of the certificate and CRL reader would always fail
9265 because it isn't possible to mix certificates and CRLs in DER format
9266 without choking one or the other routine. Changed this to just read
9267 a certificate: this is the best we can do. Also modified the code
9268 in apps/verify.c to take notice of return codes: it was previously
9269 attempting to read in certificates from NULL pointers and ignoring
9270 any errors: this is one reason why the cert and CRL reader seemed
9271 to work. It doesn't check return codes from the default certificate
9272 routines: these may well fail if the certificates aren't installed.
9275 *) Code to support otherName option in GeneralName.
9278 *) First update to verify code. Change the verify utility
9279 so it warns if it is passed a self signed certificate:
9280 for consistency with the normal behaviour. X509_verify
9281 has been modified to it will now verify a self signed
9282 certificate if *exactly* the same certificate appears
9283 in the store: it was previously impossible to trust a
9284 single self signed certificate. This means that:
9285 openssl verify ss.pem
9286 now gives a warning about a self signed certificate but
9287 openssl verify -CAfile ss.pem ss.pem
9291 *) For servers, store verify_result in SSL_SESSION data structure
9292 (and add it to external session representation).
9293 This is needed when client certificate verifications fails,
9294 but an application-provided verification callback (set by
9295 SSL_CTX_set_cert_verify_callback) allows accepting the session
9296 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9297 but returns 1): When the session is reused, we have to set
9298 ssl->verify_result to the appropriate error code to avoid
9300 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9302 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9303 case in PKCS7_dataInit() where the signed PKCS7 structure
9304 didn't contain any existing data because it was being created.
9305 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9307 *) Add a salt to the key derivation routines in enc.c. This
9308 forms the first 8 bytes of the encrypted file. Also add a
9309 -S option to allow a salt to be input on the command line.
9312 *) New function X509_cmp(). Oddly enough there wasn't a function
9313 to compare two certificates. We do this by working out the SHA1
9314 hash and comparing that. X509_cmp() will be needed by the trust
9318 *) SSL_get1_session() is like SSL_get_session(), but increments
9319 the reference count in the SSL_SESSION returned.
9320 [Geoff Thorpe <geoff@eu.c2.net>]
9322 *) Fix for 'req': it was adding a null to request attributes.
9323 Also change the X509_LOOKUP and X509_INFO code to handle
9324 certificate auxiliary information.
9327 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9331 *) Add the possibility to add extra information to the memory leak
9332 detecting output, to form tracebacks, showing from where each
9333 allocation was originated: CRYPTO_push_info("constant string") adds
9334 the string plus current file name and line number to a per-thread
9335 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9336 is like calling CYRPTO_pop_info() until the stack is empty.
9337 Also updated memory leak detection code to be multi-thread-safe.
9340 *) Add options -text and -noout to pkcs7 utility and delete the
9341 encryption options which never did anything. Update docs.
9344 *) Add options to some of the utilities to allow the pass phrase
9345 to be included on either the command line (not recommended on
9346 OSes like Unix) or read from the environment. Update the
9347 manpages and fix a few bugs.
9350 *) Add a few manpages for some of the openssl commands.
9353 *) Fix the -revoke option in ca. It was freeing up memory twice,
9354 leaking and not finding already revoked certificates.
9357 *) Extensive changes to support certificate auxiliary information.
9358 This involves the use of X509_CERT_AUX structure and X509_AUX
9359 functions. An X509_AUX function such as PEM_read_X509_AUX()
9360 can still read in a certificate file in the usual way but it
9361 will also read in any additional "auxiliary information". By
9362 doing things this way a fair degree of compatibility can be
9363 retained: existing certificates can have this information added
9364 using the new 'x509' options.
9366 Current auxiliary information includes an "alias" and some trust
9367 settings. The trust settings will ultimately be used in enhanced
9368 certificate chain verification routines: currently a certificate
9369 can only be trusted if it is self signed and then it is trusted
9373 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9374 The problem was that one of the replacement routines had not been working
9375 since SSLeay releases. For now the offending routine has been replaced
9376 with non-optimised assembler. Even so, this now gives around 95%
9377 performance improvement for 1024 bit RSA signs.
9380 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9381 handling. Most clients have the effective key size in bits equal to
9382 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9383 A few however don't do this and instead use the size of the decrypted key
9384 to determine the RC2 key length and the AlgorithmIdentifier to determine
9385 the effective key length. In this case the effective key length can still
9386 be 40 bits but the key length can be 168 bits for example. This is fixed
9387 by manually forcing an RC2 key into the EVP_PKEY structure because the
9388 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9389 the key length and effective key length are equal.
9392 *) Add a bunch of functions that should simplify the creation of
9393 X509_NAME structures. Now you should be able to do:
9394 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9395 and have it automatically work out the correct field type and fill in
9396 the structures. The more adventurous can try:
9397 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9398 and it will (hopefully) work out the correct multibyte encoding.
9401 *) Change the 'req' utility to use the new field handling and multibyte
9402 copy routines. Before the DN field creation was handled in an ad hoc
9403 way in req, ca, and x509 which was rather broken and didn't support
9404 BMPStrings or UTF8Strings. Since some software doesn't implement
9405 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9406 using the dirstring_type option. See the new comment in the default
9407 openssl.cnf for more info.
9410 *) Make crypto/rand/md_rand.c more robust:
9411 - Assure unique random numbers after fork().
9412 - Make sure that concurrent threads access the global counter and
9413 md serializably so that we never lose entropy in them
9414 or use exactly the same state in multiple threads.
9415 Access to the large state is not always serializable because
9416 the additional locking could be a performance killer, and
9417 md should be large enough anyway.
9420 *) New file apps/app_rand.c with commonly needed functionality
9421 for handling the random seed file.
9423 Use the random seed file in some applications that previously did not:
9425 dsaparam -genkey (which also ignored its '-rand' option),
9428 x509 (when signing).
9429 Except on systems with /dev/urandom, it is crucial to have a random
9430 seed file at least for key creation, DSA signing, and for DH exchanges;
9431 for RSA signatures we could do without one.
9433 gendh and gendsa (unlike genrsa) used to read only the first byte
9434 of each file listed in the '-rand' option. The function as previously
9435 found in genrsa is now in app_rand.c and is used by all programs
9436 that support '-rand'.
9439 *) In RAND_write_file, use mode 0600 for creating files;
9440 don't just chmod when it may be too late.
9443 *) Report an error from X509_STORE_load_locations
9444 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9447 *) New function ASN1_mbstring_copy() this copies a string in either
9448 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9449 into an ASN1_STRING type. A mask of permissible types is passed
9450 and it chooses the "minimal" type to use or an error if not type
9454 *) Add function equivalents to the various macros in asn1.h. The old
9455 macros are retained with an M_ prefix. Code inside the library can
9456 use the M_ macros. External code (including the openssl utility)
9457 should *NOT* in order to be "shared library friendly".
9460 *) Add various functions that can check a certificate's extensions
9461 to see if it usable for various purposes such as SSL client,
9462 server or S/MIME and CAs of these types. This is currently
9463 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9464 verification. Also added a -purpose flag to x509 utility to
9465 print out all the purposes.
9468 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9472 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9473 for, obtain and decode and extension and obtain its critical flag.
9474 This allows all the necessary extension code to be handled in a
9475 single function call.
9478 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9479 platforms. See crypto/rc4/rc4_enc.c for further details.
9482 *) New -noout option to asn1parse. This causes no output to be produced
9483 its main use is when combined with -strparse and -out to extract data
9484 from a file (which may not be in ASN.1 format).
9487 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9488 when producing the local key id.
9489 [Richard Levitte <levitte@stacken.kth.se>]
9491 *) New option -dhparam in s_server. This allows a DH parameter file to be
9492 stated explicitly. If it is not stated then it tries the first server
9493 certificate file. The previous behaviour hard coded the filename
9497 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9498 a public key to be input or output. For example:
9499 openssl rsa -in key.pem -pubout -out pubkey.pem
9500 Also added necessary DSA public key functions to handle this.
9503 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9504 in the message. This was handled by allowing
9505 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9506 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9508 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9509 to the end of the strings whereas this didn't. This would cause problems
9510 if strings read with d2i_ASN1_bytes() were later modified.
9511 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9513 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9514 data and it contains EOF it will end up returning an error. This is
9515 caused by input 46 bytes long. The cause is due to the way base64
9516 BIOs find the start of base64 encoded data. They do this by trying a
9517 trial decode on each line until they find one that works. When they
9518 do a flag is set and it starts again knowing it can pass all the
9519 data directly through the decoder. Unfortunately it doesn't reset
9520 the context it uses. This means that if EOF is reached an attempt
9521 is made to pass two EOFs through the context and this causes the
9522 resulting error. This can also cause other problems as well. As is
9523 usual with these problems it takes *ages* to find and the fix is
9524 trivial: move one line.
9525 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9527 *) Ugly workaround to get s_client and s_server working under Windows. The
9528 old code wouldn't work because it needed to select() on sockets and the
9529 tty (for keypresses and to see if data could be written). Win32 only
9530 supports select() on sockets so we select() with a 1s timeout on the
9531 sockets and then see if any characters are waiting to be read, if none
9532 are present then we retry, we also assume we can always write data to
9533 the tty. This isn't nice because the code then blocks until we've
9534 received a complete line of data and it is effectively polling the
9535 keyboard at 1s intervals: however it's quite a bit better than not
9536 working at all :-) A dedicated Windows application might handle this
9537 with an event loop for example.
9540 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9541 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9542 will be called when RSA_sign() and RSA_verify() are used. This is useful
9543 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9544 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9545 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9546 This necessitated the support of an extra signature type NID_md5_sha1
9547 for SSL signatures and modifications to the SSL library to use it instead
9548 of calling RSA_public_decrypt() and RSA_private_encrypt().
9551 *) Add new -verify -CAfile and -CApath options to the crl program, these
9552 will lookup a CRL issuers certificate and verify the signature in a
9553 similar way to the verify program. Tidy up the crl program so it
9554 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9555 less strict. It will now permit CRL extensions even if it is not
9556 a V2 CRL: this will allow it to tolerate some broken CRLs.
9559 *) Initialize all non-automatic variables each time one of the openssl
9560 sub-programs is started (this is necessary as they may be started
9561 multiple times from the "OpenSSL>" prompt).
9562 [Lennart Bang, Bodo Moeller]
9564 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9565 removing all other RSA functionality (this is what NO_RSA does). This
9566 is so (for example) those in the US can disable those operations covered
9567 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9571 *) Non-copying interface to BIO pairs.
9572 (still largely untested)
9575 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9576 ASCII string. This was handled independently in various places before.
9579 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9580 UTF8 strings a character at a time.
9583 *) Use client_version from client hello to select the protocol
9584 (s23_srvr.c) and for RSA client key exchange verification
9585 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9588 *) Add various utility functions to handle SPKACs, these were previously
9589 handled by poking round in the structure internals. Added new function
9590 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9591 print, verify and generate SPKACs. Based on an original idea from
9592 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9595 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9598 *) Allow the config file extension section to be overwritten on the
9599 command line. Based on an original idea from Massimiliano Pala
9600 <madwolf@comune.modena.it>. The new option is called -extensions
9601 and can be applied to ca, req and x509. Also -reqexts to override
9602 the request extensions in req and -crlexts to override the crl extensions
9606 *) Add new feature to the SPKAC handling in ca. Now you can include
9607 the same field multiple times by preceding it by "XXXX." for example:
9610 this is the same syntax as used in the req config file.
9613 *) Allow certificate extensions to be added to certificate requests. These
9614 are specified in a 'req_extensions' option of the req section of the
9615 config file. They can be printed out with the -text option to req but
9616 are otherwise ignored at present.
9619 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9620 data read consists of only the final block it would not decrypted because
9621 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
9622 A misplaced 'break' also meant the decrypted final block might not be
9623 copied until the next read.
9626 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
9627 a few extra parameters to the DH structure: these will be useful if
9628 for example we want the value of 'q' or implement X9.42 DH.
9631 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
9632 provides hooks that allow the default DSA functions or functions on a
9633 "per key" basis to be replaced. This allows hardware acceleration and
9634 hardware key storage to be handled without major modification to the
9635 library. Also added low level modexp hooks and CRYPTO_EX structure and
9636 associated functions.
9639 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
9640 as "read only": it can't be written to and the buffer it points to will
9641 not be freed. Reading from a read only BIO is much more efficient than
9642 a normal memory BIO. This was added because there are several times when
9643 an area of memory needs to be read from a BIO. The previous method was
9644 to create a memory BIO and write the data to it, this results in two
9645 copies of the data and an O(n^2) reading algorithm. There is a new
9646 function BIO_new_mem_buf() which creates a read only memory BIO from
9647 an area of memory. Also modified the PKCS#7 routines to use read only
9651 *) Bugfix: ssl23_get_client_hello did not work properly when called in
9652 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
9653 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
9654 but a retry condition occured while trying to read the rest.
9657 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
9658 NID_pkcs7_encrypted by default: this was wrong since this should almost
9659 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
9660 the encrypted data type: this is a more sensible place to put it and it
9661 allows the PKCS#12 code to be tidied up that duplicated this
9665 *) Changed obj_dat.pl script so it takes its input and output files on
9666 the command line. This should avoid shell escape redirection problems
9670 *) Initial support for certificate extension requests, these are included
9671 in things like Xenroll certificate requests. Included functions to allow
9672 extensions to be obtained and added.
9675 *) -crlf option to s_client and s_server for sending newlines as
9676 CRLF (as required by many protocols).
9679 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
9681 *) Install libRSAglue.a when OpenSSL is built with RSAref.
9682 [Ralf S. Engelschall]
9684 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
9685 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
9687 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
9691 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
9692 DH parameters/keys (q is lost during that conversion, but the resulting
9693 DH parameters contain its length).
9695 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
9696 much faster than DH_generate_parameters (which creates parameters
9697 where p = 2*q + 1), and also the smaller q makes DH computations
9698 much more efficient (160-bit exponentiation instead of 1024-bit
9699 exponentiation); so this provides a convenient way to support DHE
9700 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
9701 utter importance to use
9702 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9704 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9705 when such DH parameters are used, because otherwise small subgroup
9706 attacks may become possible!
9709 *) Avoid memory leak in i2d_DHparams.
9712 *) Allow the -k option to be used more than once in the enc program:
9713 this allows the same encrypted message to be read by multiple recipients.
9716 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
9717 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
9718 it will always use the numerical form of the OID, even if it has a short
9722 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9723 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9724 otherwise bn_mod_exp was called. In the case of hardware keys for example
9725 no private key components need be present and it might store extra data
9726 in the RSA structure, which cannot be accessed from bn_mod_exp.
9727 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9728 private key operations.
9731 *) Added support for SPARC Linux.
9734 *) pem_password_cb function type incompatibly changed from
9735 typedef int pem_password_cb(char *buf, int size, int rwflag);
9737 ....(char *buf, int size, int rwflag, void *userdata);
9738 so that applications can pass data to their callbacks:
9739 The PEM[_ASN1]_{read,write}... functions and macros now take an
9740 additional void * argument, which is just handed through whenever
9741 the password callback is called.
9742 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9744 New function SSL_CTX_set_default_passwd_cb_userdata.
9746 Compatibility note: As many C implementations push function arguments
9747 onto the stack in reverse order, the new library version is likely to
9748 interoperate with programs that have been compiled with the old
9749 pem_password_cb definition (PEM_whatever takes some data that
9750 happens to be on the stack as its last argument, and the callback
9751 just ignores this garbage); but there is no guarantee whatsoever that
9754 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9755 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9756 problems not only on Windows, but also on some Unix platforms.
9757 To avoid problematic command lines, these definitions are now in an
9758 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9759 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9762 *) MIPS III/IV assembler module is reimplemented.
9765 *) More DES library cleanups: remove references to srand/rand and
9766 delete an unused file.
9769 *) Add support for the the free Netwide assembler (NASM) under Win32,
9770 since not many people have MASM (ml) and it can be hard to obtain.
9771 This is currently experimental but it seems to work OK and pass all
9772 the tests. Check out INSTALL.W32 for info.
9775 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9776 without temporary keys kept an extra copy of the server key,
9777 and connections with temporary keys did not free everything in case
9781 *) New function RSA_check_key and new openssl rsa option -check
9782 for verifying the consistency of RSA keys.
9783 [Ulf Moeller, Bodo Moeller]
9785 *) Various changes to make Win32 compile work:
9786 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9787 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9788 comparison" warnings.
9789 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9792 *) Add a debugging option to PKCS#5 v2 key generation function: when
9793 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9794 derived keys are printed to stderr.
9797 *) Copy the flags in ASN1_STRING_dup().
9798 [Roman E. Pavlov <pre@mo.msk.ru>]
9800 *) The x509 application mishandled signing requests containing DSA
9801 keys when the signing key was also DSA and the parameters didn't match.
9803 It was supposed to omit the parameters when they matched the signing key:
9804 the verifying software was then supposed to automatically use the CA's
9805 parameters if they were absent from the end user certificate.
9807 Omitting parameters is no longer recommended. The test was also
9808 the wrong way round! This was probably due to unusual behaviour in
9809 EVP_cmp_parameters() which returns 1 if the parameters match.
9810 This meant that parameters were omitted when they *didn't* match and
9811 the certificate was useless. Certificates signed with 'ca' didn't have
9813 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9815 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9816 The interface is as follows:
9817 Applications can use
9818 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9819 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9820 "off" is now the default.
9821 The library internally uses
9822 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9823 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9824 to disable memory-checking temporarily.
9826 Some inconsistent states that previously were possible (and were
9827 even the default) are now avoided.
9829 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9830 with each memory chunk allocated; this is occasionally more helpful
9831 than just having a counter.
9833 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9835 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9839 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9840 which largely parallels "options", but is for changing API behaviour,
9841 whereas "options" are about protocol behaviour.
9842 Initial "mode" flags are:
9844 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9845 a single record has been written.
9846 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9847 retries use the same buffer location.
9848 (But all of the contents must be
9852 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9855 *) Fix problems with no-hmac etc.
9856 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9858 *) New functions RSA_get_default_method(), RSA_set_method() and
9859 RSA_get_method(). These allows replacement of RSA_METHODs without having
9860 to mess around with the internals of an RSA structure.
9863 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9864 Also really enable memory leak checks in openssl.c and in some
9866 [Chad C. Mulligan, Bodo Moeller]
9868 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9869 up the length of negative integers. This has now been simplified to just
9870 store the length when it is first determined and use it later, rather
9871 than trying to keep track of where data is copied and updating it to
9873 [Steve Henson, reported by Brien Wheeler
9874 <bwheeler@authentica-security.com>]
9876 *) Add a new function PKCS7_signatureVerify. This allows the verification
9877 of a PKCS#7 signature but with the signing certificate passed to the
9878 function itself. This contrasts with PKCS7_dataVerify which assumes the
9879 certificate is present in the PKCS#7 structure. This isn't always the
9880 case: certificates can be omitted from a PKCS#7 structure and be
9881 distributed by "out of band" means (such as a certificate database).
9884 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9885 function prototypes in pem.h, also change util/mkdef.pl to add the
9886 necessary function names.
9889 *) mk1mf.pl (used by Windows builds) did not properly read the
9890 options set by Configure in the top level Makefile, and Configure
9891 was not even able to write more than one option correctly.
9892 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9895 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9896 file to be loaded from a BIO or FILE pointer. The BIO version will
9897 for example allow memory BIOs to contain config info.
9900 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9901 Whoever hopes to achieve shared-library compatibility across versions
9902 must use this, not the compile-time macro.
9903 (Exercise 0.9.4: Which is the minimum library version required by
9905 Note: All this applies only to multi-threaded programs, others don't
9909 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9910 through a BIO pair triggered the default case, i.e.
9911 SSLerr(...,SSL_R_UNKNOWN_STATE).
9914 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9915 can use the SSL library even if none of the specific BIOs is
9919 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9920 for the encoded length.
9921 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9923 *) Add initial documentation of the X509V3 functions.
9926 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9927 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9928 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9929 secure PKCS#8 private key format with a high iteration count.
9932 *) Fix determination of Perl interpreter: A perl or perl5
9933 _directory_ in $PATH was also accepted as the interpreter.
9934 [Ralf S. Engelschall]
9936 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9937 wrong with it but it was very old and did things like calling
9938 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9942 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9943 to use the new extension code.
9946 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9947 with macros. This should make it easier to change their form, add extra
9948 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9952 *) Add to configuration table a new entry that can specify an alternative
9953 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9954 according to Mark Crispin <MRC@Panda.COM>.
9958 *) DES CBC did not update the IV. Weird.
9961 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9962 Changing the behaviour of the former might break existing programs --
9963 where IV updating is needed, des_ncbc_encrypt can be used.
9966 *) When bntest is run from "make test" it drives bc to check its
9967 calculations, as well as internally checking them. If an internal check
9968 fails, it needs to cause bc to give a non-zero result or make test carries
9969 on without noticing the failure. Fixed.
9972 *) DES library cleanups.
9975 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9976 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9977 ciphers. NOTE: although the key derivation function has been verified
9978 against some published test vectors it has not been extensively tested
9979 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9983 *) Instead of "mkdir -p", which is not fully portable, use new
9984 Perl script "util/mkdir-p.pl".
9987 *) Rewrite the way password based encryption (PBE) is handled. It used to
9988 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9989 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9990 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9991 the 'parameter' field of the AlgorithmIdentifier is passed to the
9992 underlying key generation function so it must do its own ASN1 parsing.
9993 This has also changed the EVP_PBE_CipherInit() function which now has a
9994 'parameter' argument instead of literal salt and iteration count values
9995 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9998 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9999 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
10000 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
10001 KEY" because this clashed with PKCS#8 unencrypted string. Since this
10002 value was just used as a "magic string" and not used directly its
10003 value doesn't matter.
10006 *) Introduce some semblance of const correctness to BN. Shame C doesn't
10010 *) "linux-sparc64" configuration (ultrapenguin).
10011 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
10012 "linux-sparc" configuration.
10013 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
10015 *) config now generates no-xxx options for missing ciphers.
10018 *) Support the EBCDIC character set (work in progress).
10019 File ebcdic.c not yet included because it has a different license.
10020 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10022 *) Support BS2000/OSD-POSIX.
10023 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10025 *) Make callbacks for key generation use void * instead of char *.
10028 *) Make S/MIME samples compile (not yet tested).
10031 *) Additional typesafe stacks.
10034 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
10038 Changes between 0.9.3 and 0.9.3a [29 May 1999]
10040 *) New configuration variant "sco5-gcc".
10042 *) Updated some demos.
10043 [Sean O Riordain, Wade Scholine]
10045 *) Add missing BIO_free at exit of pkcs12 application.
10048 *) Fix memory leak in conf.c.
10051 *) Updates for Win32 to assembler version of MD5.
10054 *) Set #! path to perl in apps/der_chop to where we found it
10055 instead of using a fixed path.
10058 *) SHA library changes for irix64-mips4-cc.
10061 *) Improvements for VMS support.
10065 Changes between 0.9.2b and 0.9.3 [24 May 1999]
10067 *) Bignum library bug fix. IRIX 6 passes "make test" now!
10068 This also avoids the problems with SC4.2 and unpatched SC5.
10069 [Andy Polyakov <appro@fy.chalmers.se>]
10071 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
10072 These are required because of the typesafe stack would otherwise break
10073 existing code. If old code used a structure member which used to be STACK
10074 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
10075 sk_num or sk_value it would produce an error because the num, data members
10076 are not present in STACK_OF. Now it just produces a warning. sk_set
10077 replaces the old method of assigning a value to sk_value
10078 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
10079 that does this will no longer work (and should use sk_set instead) but
10080 this could be regarded as a "questionable" behaviour anyway.
10083 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
10084 correctly handle encrypted S/MIME data.
10087 *) Change type of various DES function arguments from des_cblock
10088 (which means, in function argument declarations, pointer to char)
10089 to des_cblock * (meaning pointer to array with 8 char elements),
10090 which allows the compiler to do more typechecking; it was like
10091 that back in SSLeay, but with lots of ugly casts.
10093 Introduce new type const_des_cblock.
10096 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
10097 problems: find RecipientInfo structure that matches recipient certificate
10098 and initialise the ASN1 structures properly based on passed cipher.
10101 *) Belatedly make the BN tests actually check the results.
10104 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
10105 to and from BNs: it was completely broken. New compilation option
10106 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
10107 key elements as negative integers.
10110 *) Reorganize and speed up MD5.
10111 [Andy Polyakov <appro@fy.chalmers.se>]
10114 [Richard Levitte <richard@levitte.org>]
10116 *) New option -out to asn1parse to allow the parsed structure to be
10117 output to a file. This is most useful when combined with the -strparse
10118 option to examine the output of things like OCTET STRINGS.
10121 *) Make SSL library a little more fool-proof by not requiring any longer
10122 that SSL_set_{accept,connect}_state be called before
10123 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
10124 in many applications because usually everything *appeared* to work as
10125 intended anyway -- now it really works as intended).
10128 *) Move openssl.cnf out of lib/.
10131 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
10132 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
10133 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
10134 [Ralf S. Engelschall]
10136 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
10137 handle PKCS#7 enveloped data properly.
10138 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
10140 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
10141 copying pointers. The cert_st handling is changed by this in
10142 various ways (and thus what used to be known as ctx->default_cert
10143 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
10144 any longer when s->cert does not give us what we need).
10145 ssl_cert_instantiate becomes obsolete by this change.
10146 As soon as we've got the new code right (possibly it already is?),
10147 we have solved a couple of bugs of the earlier code where s->cert
10148 was used as if it could not have been shared with other SSL structures.
10150 Note that using the SSL API in certain dirty ways now will result
10151 in different behaviour than observed with earlier library versions:
10152 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
10153 does not influence s as it used to.
10155 In order to clean up things more thoroughly, inside SSL_SESSION
10156 we don't use CERT any longer, but a new structure SESS_CERT
10157 that holds per-session data (if available); currently, this is
10158 the peer's certificate chain and, for clients, the server's certificate
10159 and temporary key. CERT holds only those values that can have
10160 meaningful defaults in an SSL_CTX.
10163 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
10164 from the internal representation. Various PKCS#7 fixes: remove some
10165 evil casts and set the enc_dig_alg field properly based on the signing
10169 *) Allow PKCS#12 password to be set from the command line or the
10170 environment. Let 'ca' get its config file name from the environment
10171 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
10175 *) Allow certificate policies extension to use an IA5STRING for the
10176 organization field. This is contrary to the PKIX definition but
10177 VeriSign uses it and IE5 only recognises this form. Document 'x509'
10181 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
10182 without disallowing inline assembler and the like for non-pedantic builds.
10185 *) Support Borland C++ builder.
10186 [Janez Jere <jj@void.si>, modified by Ulf Möller]
10188 *) Support Mingw32.
10191 *) SHA-1 cleanups and performance enhancements.
10192 [Andy Polyakov <appro@fy.chalmers.se>]
10194 *) Sparc v8plus assembler for the bignum library.
10195 [Andy Polyakov <appro@fy.chalmers.se>]
10197 *) Accept any -xxx and +xxx compiler options in Configure.
10200 *) Update HPUX configuration.
10203 *) Add missing sk_<type>_unshift() function to safestack.h
10204 [Ralf S. Engelschall]
10206 *) New function SSL_CTX_use_certificate_chain_file that sets the
10207 "extra_cert"s in addition to the certificate. (This makes sense
10208 only for "PEM" format files, as chains as a whole are not
10212 *) Support verify_depth from the SSL API.
10213 x509_vfy.c had what can be considered an off-by-one-error:
10214 Its depth (which was not part of the external interface)
10215 was actually counting the number of certificates in a chain;
10216 now it really counts the depth.
10219 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
10220 instead of X509err, which often resulted in confusing error
10221 messages since the error codes are not globally unique
10222 (e.g. an alleged error in ssl3_accept when a certificate
10223 didn't match the private key).
10225 *) New function SSL_CTX_set_session_id_context that allows to set a default
10226 value (so that you don't need SSL_set_session_id_context for each
10227 connection using the SSL_CTX).
10230 *) OAEP decoding bug fix.
10233 *) Support INSTALL_PREFIX for package builders, as proposed by
10237 *) New Configure options "threads" and "no-threads". For systems
10238 where the proper compiler options are known (currently Solaris
10239 and Linux), "threads" is the default.
10242 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10245 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10246 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10247 such as /usr/local/bin.
10250 *) "make linux-shared" to build shared libraries.
10251 [Niels Poppe <niels@netbox.org>]
10253 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10256 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10257 extension adding in x509 utility.
10260 *) Remove NOPROTO sections and error code comments.
10263 *) Partial rewrite of the DEF file generator to now parse the ANSI
10267 *) New Configure options --prefix=DIR and --openssldir=DIR.
10270 *) Complete rewrite of the error code script(s). It is all now handled
10271 by one script at the top level which handles error code gathering,
10272 header rewriting and C source file generation. It should be much better
10273 than the old method: it now uses a modified version of Ulf's parser to
10274 read the ANSI prototypes in all header files (thus the old K&R definitions
10275 aren't needed for error creation any more) and do a better job of
10276 translating function codes into names. The old 'ASN1 error code imbedded
10277 in a comment' is no longer necessary and it doesn't use .err files which
10278 have now been deleted. Also the error code call doesn't have to appear all
10279 on one line (which resulted in some large lines...).
10282 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10285 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10286 0 (which usually indicates a closed connection), but continue reading.
10289 *) Fix some race conditions.
10292 *) Add support for CRL distribution points extension. Add Certificate
10293 Policies and CRL distribution points documentation.
10296 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10299 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10300 8 of keying material. Merlin has also confirmed interop with this fix
10301 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10302 [Merlin Hughes <merlin@baltimore.ie>]
10304 *) Fix lots of warnings.
10305 [Richard Levitte <levitte@stacken.kth.se>]
10307 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10308 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10309 [Richard Levitte <levitte@stacken.kth.se>]
10311 *) Fix problems with sizeof(long) == 8.
10312 [Andy Polyakov <appro@fy.chalmers.se>]
10314 *) Change functions to ANSI C.
10317 *) Fix typos in error codes.
10318 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10320 *) Remove defunct assembler files from Configure.
10323 *) SPARC v8 assembler BIGNUM implementation.
10324 [Andy Polyakov <appro@fy.chalmers.se>]
10326 *) Support for Certificate Policies extension: both print and set.
10327 Various additions to support the r2i method this uses.
10330 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10331 return a const string when you are expecting an allocated buffer.
10334 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10335 types DirectoryString and DisplayText.
10338 *) Add code to allow r2i extensions to access the configuration database,
10339 add an LHASH database driver and add several ctx helper functions.
10342 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10343 fail when they extended the size of a BIGNUM.
10346 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10347 support typesafe stack.
10350 *) Fix typo in SSL_[gs]et_options().
10351 [Nils Frostberg <nils@medcom.se>]
10353 *) Delete various functions and files that belonged to the (now obsolete)
10354 old X509V3 handling code.
10357 *) New Configure option "rsaref".
10360 *) Don't auto-generate pem.h.
10363 *) Introduce type-safe ASN.1 SETs.
10366 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10367 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10369 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10370 that links with OpenSSL (well at least cause lots of warnings), but fear
10371 not: the conversion is trivial, and it eliminates loads of evil casts. A
10372 few STACKed things have been converted already. Feel free to convert more.
10373 In the fullness of time, I'll do away with the STACK type altogether.
10376 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10377 specified in <certfile> by updating the entry in the index.txt file.
10378 This way one no longer has to edit the index.txt file manually for
10379 revoking a certificate. The -revoke option does the gory details now.
10380 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10382 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10383 `-text' option at all and this way the `-noout -text' combination was
10384 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10385 [Ralf S. Engelschall]
10387 *) Make sure a corresponding plain text error message exists for the
10388 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10389 verify callback function determined that a certificate was revoked.
10390 [Ralf S. Engelschall]
10392 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10393 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10394 all available cipers including rc5, which was forgotten until now.
10395 In order to let the testing shell script know which algorithms
10396 are available, a new (up to now undocumented) command
10397 "openssl list-cipher-commands" is used.
10400 *) Bugfix: s_client occasionally would sleep in select() when
10401 it should have checked SSL_pending() first.
10404 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10405 the raw DSA values prior to ASN.1 encoding.
10408 *) Tweaks to Configure
10409 [Niels Poppe <niels@netbox.org>]
10411 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10415 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10418 *) New config option to avoid instructions that are illegal on the 80386.
10419 The default code is faster, but requires at least a 486.
10422 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10423 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10424 same as SSL2_VERSION anyway.
10427 *) New "-showcerts" option for s_client.
10430 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10431 application. Various cleanups and fixes.
10434 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10435 modify error routines to work internally. Add error codes and PBE init
10436 to library startup routines.
10439 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10440 packing functions to asn1 and evp. Changed function names and error
10441 codes along the way.
10444 *) PKCS12 integration: and so it begins... First of several patches to
10445 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10446 objects to objects.h
10449 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10450 and display support for Thawte strong extranet extension.
10453 *) Add LinuxPPC support.
10454 [Jeff Dubrule <igor@pobox.org>]
10456 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10457 bn_div_words in alpha.s.
10458 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10460 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10461 OAEP isn't supported when OpenSSL is built with RSAref.
10462 [Ulf Moeller <ulf@fitug.de>]
10464 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10465 so they no longer are missing under -DNOPROTO.
10466 [Soren S. Jorvang <soren@t.dk>]
10469 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10471 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10472 doesn't work when the session is reused. Coming soon!
10475 *) Fix a security hole, that allows sessions to be reused in the wrong
10476 context thus bypassing client cert protection! All software that uses
10477 client certs and session caches in multiple contexts NEEDS PATCHING to
10478 allow session reuse! A fuller solution is in the works.
10479 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10481 *) Some more source tree cleanups (removed obsolete files
10482 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10483 permission on "config" script to be executable) and a fix for the INSTALL
10485 [Ulf Moeller <ulf@fitug.de>]
10487 *) Remove some legacy and erroneous uses of malloc, free instead of
10489 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10491 *) Make rsa_oaep_test return non-zero on error.
10492 [Ulf Moeller <ulf@fitug.de>]
10494 *) Add support for native Solaris shared libraries. Configure
10495 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10496 if someone would make that last step automatic.
10497 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10499 *) ctx_size was not built with the right compiler during "make links". Fixed.
10502 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10503 except NULL ciphers". This means the default cipher list will no longer
10504 enable NULL ciphers. They need to be specifically enabled e.g. with
10505 the string "DEFAULT:eNULL".
10508 *) Fix to RSA private encryption routines: if p < q then it would
10509 occasionally produce an invalid result. This will only happen with
10510 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10513 *) Be less restrictive and allow also `perl util/perlpath.pl
10514 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10515 because this way one can also use an interpreter named `perl5' (which is
10516 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10517 installed as `perl').
10518 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10520 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10521 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10523 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10524 advapi32.lib to Win32 build and change the pem test comparison
10525 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10526 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10527 and crypto/des/ede_cbcm_enc.c.
10530 *) DES quad checksum was broken on big-endian architectures. Fixed.
10533 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10534 Win32 test batch file so it (might) work again. The Win32 test batch file
10535 is horrible: I feel ill....
10538 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10539 in e_os.h. Audit of header files to check ANSI and non ANSI
10540 sections: 10 functions were absent from non ANSI section and not exported
10541 from Windows DLLs. Fixed up libeay.num for new functions.
10544 *) Make `openssl version' output lines consistent.
10545 [Ralf S. Engelschall]
10547 *) Fix Win32 symbol export lists for BIO functions: Added
10548 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10549 to ms/libeay{16,32}.def.
10550 [Ralf S. Engelschall]
10552 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10553 fine under Unix and passes some trivial tests I've now added. But the
10554 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10555 added to make sure no one expects that this stuff really works in the
10556 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10557 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10559 [Ralf S. Engelschall]
10561 *) Fix the generation of two part addresses in perl.
10562 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10564 *) Add config entry for Linux on MIPS.
10565 [John Tobey <jtobey@channel1.com>]
10567 *) Make links whenever Configure is run, unless we are on Windoze.
10570 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10571 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10575 *) Add a useful kludge to allow package maintainers to specify compiler and
10576 other platforms details on the command line without having to patch the
10577 Configure script everytime: One now can use ``perl Configure
10578 <id>:<details>'', i.e. platform ids are allowed to have details appended
10579 to them (separated by colons). This is treated as there would be a static
10580 pre-configured entry in Configure's %table under key <id> with value
10581 <details> and ``perl Configure <id>'' is called. So, when you want to
10582 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10583 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10584 now, which overrides the FreeBSD-elf entry on-the-fly.
10585 [Ralf S. Engelschall]
10587 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10590 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10591 on the `perl Configure ...' command line. This way one can compile
10592 OpenSSL libraries with Position Independent Code (PIC) which is needed
10593 for linking it into DSOs.
10594 [Ralf S. Engelschall]
10596 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10600 *) Cleaned up the LICENSE document: The official contact for any license
10601 questions now is the OpenSSL core team under openssl-core@openssl.org.
10602 And add a paragraph about the dual-license situation to make sure people
10603 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
10604 to the OpenSSL toolkit.
10605 [Ralf S. Engelschall]
10607 *) General source tree makefile cleanups: Made `making xxx in yyy...'
10608 display consistent in the source tree and replaced `/bin/rm' by `rm'.
10609 Additionally cleaned up the `make links' target: Remove unnecessary
10610 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
10611 to speed processing and no longer clutter the display with confusing
10612 stuff. Instead only the actually done links are displayed.
10613 [Ralf S. Engelschall]
10615 *) Permit null encryption ciphersuites, used for authentication only. It used
10616 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
10617 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
10621 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
10622 signed attributes when verifying signatures (this would break them),
10623 the detached data encoding was wrong and public keys obtained using
10624 X509_get_pubkey() weren't freed.
10627 *) Add text documentation for the BUFFER functions. Also added a work around
10628 to a Win95 console bug. This was triggered by the password read stuff: the
10629 last character typed gets carried over to the next fread(). If you were
10630 generating a new cert request using 'req' for example then the last
10631 character of the passphrase would be CR which would then enter the first
10635 *) Added the new `Includes OpenSSL Cryptography Software' button as
10636 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
10637 button and can be used by applications based on OpenSSL to show the
10638 relationship to the OpenSSL project.
10639 [Ralf S. Engelschall]
10641 *) Remove confusing variables in function signatures in files
10642 ssl/ssl_lib.c and ssl/ssl.h.
10643 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10645 *) Don't install bss_file.c under PREFIX/include/
10646 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10648 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
10649 functions that return function pointers and has support for NT specific
10650 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
10651 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
10652 unsigned to signed types: this was killing the Win32 compile.
10655 *) Add new certificate file to stack functions,
10656 SSL_add_dir_cert_subjects_to_stack() and
10657 SSL_add_file_cert_subjects_to_stack(). These largely supplant
10658 SSL_load_client_CA_file(), and can be used to add multiple certs easily
10659 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10660 This means that Apache-SSL and similar packages don't have to mess around
10661 to add as many CAs as they want to the preferred list.
10664 *) Experiment with doxygen documentation. Currently only partially applied to
10666 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
10667 openssl.doxy as the configuration file.
10670 *) Get rid of remaining C++-style comments which strict C compilers hate.
10671 [Ralf S. Engelschall, pointed out by Carlos Amengual]
10673 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
10674 compiled in by default: it has problems with large keys.
10677 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
10678 DH private keys and/or callback functions which directly correspond to
10679 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
10680 is needed for applications which have to configure certificates on a
10681 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
10683 For the RSA certificate situation is makes no difference, but
10684 for the DSA certificate situation this fixes the "no shared cipher"
10685 problem where the OpenSSL cipher selection procedure failed because the
10686 temporary keys were not overtaken from the context and the API provided
10687 no way to reconfigure them.
10688 The new functions now let applications reconfigure the stuff and they
10689 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
10690 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
10691 non-public-API function ssl_cert_instantiate() is used as a helper
10692 function and also to reduce code redundancy inside ssl_rsa.c.
10693 [Ralf S. Engelschall]
10695 *) Move s_server -dcert and -dkey options out of the undocumented feature
10696 area because they are useful for the DSA situation and should be
10697 recognized by the users.
10698 [Ralf S. Engelschall]
10700 *) Fix the cipher decision scheme for export ciphers: the export bits are
10701 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
10702 SSL_EXP_MASK. So, the original variable has to be used instead of the
10703 already masked variable.
10704 [Richard Levitte <levitte@stacken.kth.se>]
10706 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
10707 [Richard Levitte <levitte@stacken.kth.se>]
10709 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
10710 from `int' to `unsigned int' because it's a length and initialized by
10711 EVP_DigestFinal() which expects an `unsigned int *'.
10712 [Richard Levitte <levitte@stacken.kth.se>]
10714 *) Don't hard-code path to Perl interpreter on shebang line of Configure
10715 script. Instead use the usual Shell->Perl transition trick.
10716 [Ralf S. Engelschall]
10718 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
10719 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10720 -noout -modulus' as it's already the case for `openssl rsa -noout
10721 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10722 currently the public key is printed (a decision which was already done by
10723 `openssl dsa -modulus' in the past) which serves a similar purpose.
10724 Additionally the NO_RSA no longer completely removes the whole -modulus
10725 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10727 [Ralf S. Engelschall]
10729 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10730 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10731 [Arne Ansper <arne@ats.cyber.ee>]
10733 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10734 to be added. Now both 'req' and 'ca' can use new objects defined in the
10738 *) Add cool BIO that does syslog (or event log on NT).
10739 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10741 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10742 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10743 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10744 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10747 *) Add preliminary config info for new extension code.
10750 *) Make RSA_NO_PADDING really use no padding.
10751 [Ulf Moeller <ulf@fitug.de>]
10753 *) Generate errors when private/public key check is done.
10756 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10757 for some CRL extensions and new objects added.
10760 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10761 key usage extension and fuller support for authority key id.
10764 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10765 padding method for RSA, which is recommended for new applications in PKCS
10766 #1 v2.0 (RFC 2437, October 1998).
10767 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10768 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10769 against Bleichbacher's attack on RSA.
10770 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10773 *) Updates to the new SSL compression code
10774 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10776 *) Fix so that the version number in the master secret, when passed
10777 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10778 (because the server will not accept higher), that the version number
10779 is 0x03,0x01, not 0x03,0x00
10780 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10782 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10783 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10784 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10787 *) Support for RAW extensions where an arbitrary extension can be
10788 created by including its DER encoding. See apps/openssl.cnf for
10792 *) Make sure latest Perl versions don't interpret some generated C array
10793 code as Perl array code in the crypto/err/err_genc.pl script.
10794 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10796 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10797 not many people have the assembler. Various Win32 compilation fixes and
10798 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10799 build instructions.
10802 *) Modify configure script 'Configure' to automatically create crypto/date.h
10803 file under Win32 and also build pem.h from pem.org. New script
10804 util/mkfiles.pl to create the MINFO file on environments that can't do a
10805 'make files': perl util/mkfiles.pl >MINFO should work.
10808 *) Major rework of DES function declarations, in the pursuit of correctness
10809 and purity. As a result, many evil casts evaporated, and some weirdness,
10810 too. You may find this causes warnings in your code. Zapping your evil
10811 casts will probably fix them. Mostly.
10814 *) Fix for a typo in asn1.h. Bug fix to object creation script
10815 obj_dat.pl. It considered a zero in an object definition to mean
10816 "end of object": none of the objects in objects.h have any zeros
10817 so it wasn't spotted.
10818 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10820 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10821 Masking (CBCM). In the absence of test vectors, the best I have been able
10822 to do is check that the decrypt undoes the encrypt, so far. Send me test
10823 vectors if you have them.
10826 *) Correct calculation of key length for export ciphers (too much space was
10827 allocated for null ciphers). This has not been tested!
10830 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10831 message is now correct (it understands "crypto" and "ssl" on its
10832 command line). There is also now an "update" option. This will update
10833 the util/ssleay.num and util/libeay.num files with any new functions.
10835 perl util/mkdef.pl crypto ssl update
10836 it will update them.
10839 *) Overhauled the Perl interface (perl/*):
10840 - ported BN stuff to OpenSSL's different BN library
10841 - made the perl/ source tree CVS-aware
10842 - renamed the package from SSLeay to OpenSSL (the files still contain
10843 their history because I've copied them in the repository)
10844 - removed obsolete files (the test scripts will be replaced
10845 by better Test::Harness variants in the future)
10846 [Ralf S. Engelschall]
10848 *) First cut for a very conservative source tree cleanup:
10849 1. merge various obsolete readme texts into doc/ssleay.txt
10850 where we collect the old documents and readme texts.
10851 2. remove the first part of files where I'm already sure that we no
10852 longer need them because of three reasons: either they are just temporary
10853 files which were left by Eric or they are preserved original files where
10854 I've verified that the diff is also available in the CVS via "cvs diff
10855 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10856 the crypto/md/ stuff).
10857 [Ralf S. Engelschall]
10859 *) More extension code. Incomplete support for subject and issuer alt
10860 name, issuer and authority key id. Change the i2v function parameters
10861 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10862 what that's for :-) Fix to ASN1 macro which messed up
10863 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10866 *) Preliminary support for ENUMERATED type. This is largely copied from the
10870 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10871 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10873 *) Make sure `make rehash' target really finds the `openssl' program.
10874 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10876 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10877 like to hear about it if this slows down other processors.
10880 *) Add CygWin32 platform information to Configure script.
10881 [Alan Batie <batie@aahz.jf.intel.com>]
10883 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10884 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10886 *) New program nseq to manipulate netscape certificate sequences
10889 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10893 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10894 but the BN code had some problems that would cause failures when
10895 doing certificate verification and some other functions.
10896 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10898 *) Add ASN1 and PEM code to support netscape certificate sequences.
10901 *) Add ASN1 and PEM code to support netscape certificate sequences.
10904 *) Add several PKIX and private extended key usage OIDs.
10907 *) Modify the 'ca' program to handle the new extension code. Modify
10908 openssl.cnf for new extension format, add comments.
10911 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10912 and add a sample to openssl.cnf so req -x509 now adds appropriate
10916 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10917 error code, add initial support to X509_print() and x509 application.
10920 *) Takes a deep breath and start adding X509 V3 extension support code. Add
10921 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10922 stuff is currently isolated and isn't even compiled yet.
10925 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10926 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10927 Removed the versions check from X509 routines when loading extensions:
10928 this allows certain broken certificates that don't set the version
10929 properly to be processed.
10932 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10933 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10934 can still be regenerated with "make depend".
10937 *) Spelling mistake in C version of CAST-128.
10938 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10940 *) Changes to the error generation code. The perl script err-code.pl
10941 now reads in the old error codes and retains the old numbers, only
10942 adding new ones if necessary. It also only changes the .err files if new
10943 codes are added. The makefiles have been modified to only insert errors
10944 when needed (to avoid needlessly modifying header files). This is done
10945 by only inserting errors if the .err file is newer than the auto generated
10946 C file. To rebuild all the error codes from scratch (the old behaviour)
10947 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10948 or delete all the .err files.
10951 *) CAST-128 was incorrectly implemented for short keys. The C version has
10952 been fixed, but is untested. The assembler versions are also fixed, but
10953 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10954 to regenerate it if needed.
10955 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10956 Hagino <itojun@kame.net>]
10958 *) File was opened incorrectly in randfile.c.
10959 [Ulf Möller <ulf@fitug.de>]
10961 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10962 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10963 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10964 al: it's just almost always a UTCTime. Note this patch adds new error
10965 codes so do a "make errors" if there are problems.
10968 *) Correct Linux 1 recognition in config.
10969 [Ulf Möller <ulf@fitug.de>]
10971 *) Remove pointless MD5 hash when using DSA keys in ca.
10972 [Anonymous <nobody@replay.com>]
10974 *) Generate an error if given an empty string as a cert directory. Also
10975 generate an error if handed NULL (previously returned 0 to indicate an
10976 error, but didn't set one).
10977 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10979 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10982 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10983 parameters. This was causing a warning which killed off the Win32 compile.
10986 *) Remove C++ style comments from crypto/bn/bn_local.h.
10987 [Neil Costigan <neil.costigan@celocom.com>]
10989 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10990 based on a text string, looking up short and long names and finally
10991 "dot" format. The "dot" format stuff didn't work. Added new function
10992 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10993 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10994 OID is not part of the table.
10997 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10998 X509_LOOKUP_by_alias().
11001 *) Sort openssl functions by name.
11004 *) Get the gendsa program working (hopefully) and add it to app list. Remove
11005 encryption from sample DSA keys (in case anyone is interested the password
11009 *) Make _all_ *_free functions accept a NULL pointer.
11010 [Frans Heymans <fheymans@isaserver.be>]
11012 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
11014 [Anonymous <nobody@replay.com>]
11016 *) s_server should send the CAfile as acceptable CAs, not its own cert.
11017 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11019 *) Don't blow it for numeric -newkey arguments to apps/req.
11020 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11022 *) Temp key "for export" tests were wrong in s3_srvr.c.
11023 [Anonymous <nobody@replay.com>]
11025 *) Add prototype for temp key callback functions
11026 SSL_CTX_set_tmp_{rsa,dh}_callback().
11029 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
11030 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
11033 *) X509_name_add_entry() freed the wrong thing after an error.
11034 [Arne Ansper <arne@ats.cyber.ee>]
11036 *) rsa_eay.c would attempt to free a NULL context.
11037 [Arne Ansper <arne@ats.cyber.ee>]
11039 *) BIO_s_socket() had a broken should_retry() on Windoze.
11040 [Arne Ansper <arne@ats.cyber.ee>]
11042 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
11043 [Arne Ansper <arne@ats.cyber.ee>]
11045 *) Make sure the already existing X509_STORE->depth variable is initialized
11046 in X509_STORE_new(), but document the fact that this variable is still
11047 unused in the certificate verification process.
11048 [Ralf S. Engelschall]
11050 *) Fix the various library and apps files to free up pkeys obtained from
11051 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
11054 *) Fix reference counting in X509_PUBKEY_get(). This makes
11055 demos/maurice/example2.c work, amongst others, probably.
11056 [Steve Henson and Ben Laurie]
11058 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
11059 `openssl' and second, the shortcut symlinks for the `openssl <command>'
11060 are no longer created. This way we have a single and consistent command
11061 line interface `openssl <command>', similar to `cvs <command>'.
11062 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
11064 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
11065 BIT STRING wrapper always have zero unused bits.
11068 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
11071 *) Make the top-level INSTALL documentation easier to understand.
11074 *) Makefiles updated to exit if an error occurs in a sub-directory
11075 make (including if user presses ^C) [Paul Sutton]
11077 *) Make Montgomery context stuff explicit in RSA data structure.
11080 *) Fix build order of pem and err to allow for generated pem.h.
11083 *) Fix renumbering bug in X509_NAME_delete_entry().
11086 *) Enhanced the err-ins.pl script so it makes the error library number
11087 global and can add a library name. This is needed for external ASN1 and
11088 other error libraries.
11091 *) Fixed sk_insert which never worked properly.
11094 *) Fix ASN1 macros so they can handle indefinite length constructed
11095 EXPLICIT tags. Some non standard certificates use these: they can now
11099 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
11100 into a single doc/ssleay.txt bundle. This way the information is still
11101 preserved but no longer messes up this directory. Now it's new room for
11102 the new set of documentation files.
11103 [Ralf S. Engelschall]
11105 *) SETs were incorrectly DER encoded. This was a major pain, because they
11106 shared code with SEQUENCEs, which aren't coded the same. This means that
11107 almost everything to do with SETs or SEQUENCEs has either changed name or
11108 number of arguments.
11109 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
11111 *) Fix test data to work with the above.
11114 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
11115 was already fixed by Eric for 0.9.1 it seems.
11116 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
11118 *) Autodetect FreeBSD3.
11121 *) Fix various bugs in Configure. This affects the following platforms:
11125 unixware-2.0-pentium
11129 *) Eliminate generated files from CVS. Reorder tests to regenerate files
11130 before they are needed.
11133 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
11137 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
11139 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
11140 changed SSLeay to OpenSSL in version strings.
11141 [Ralf S. Engelschall]
11143 *) Some fixups to the top-level documents.
11146 *) Fixed the nasty bug where rsaref.h was not found under compile-time
11147 because the symlink to include/ was missing.
11148 [Ralf S. Engelschall]
11150 *) Incorporated the popular no-RSA/DSA-only patches
11151 which allow to compile a RSA-free SSLeay.
11152 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
11154 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
11155 when "ssleay" is still not found.
11156 [Ralf S. Engelschall]
11158 *) Added more platforms to Configure: Cray T3E, HPUX 11,
11159 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
11161 *) Updated the README file.
11162 [Ralf S. Engelschall]
11164 *) Added various .cvsignore files in the CVS repository subdirs
11165 to make a "cvs update" really silent.
11166 [Ralf S. Engelschall]
11168 *) Recompiled the error-definition header files and added
11169 missing symbols to the Win32 linker tables.
11170 [Ralf S. Engelschall]
11172 *) Cleaned up the top-level documents;
11173 o new files: CHANGES and LICENSE
11174 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
11175 o merged COPYRIGHT into LICENSE
11176 o removed obsolete TODO file
11177 o renamed MICROSOFT to INSTALL.W32
11178 [Ralf S. Engelschall]
11180 *) Removed dummy files from the 0.9.1b source tree:
11181 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
11182 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
11183 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
11184 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
11185 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
11186 [Ralf S. Engelschall]
11188 *) Added various platform portability fixes.
11191 *) The Genesis of the OpenSSL rpject:
11192 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
11193 Young and Tim J. Hudson created while they were working for C2Net until
11195 [The OpenSSL Project]
11198 Changes between 0.9.0b and 0.9.1b [not released]
11200 *) Updated a few CA certificates under certs/
11203 *) Changed some BIGNUM api stuff.
11206 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
11207 DGUX x86, Linux Alpha, etc.
11210 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
11211 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
11215 *) Add -strparse option to asn1pars program which parses nested
11217 [Dr Stephen Henson <shenson@bigfoot.com>]
11219 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
11222 *) DSA fix for "ca" program.
11225 *) Added "-genkey" option to "dsaparam" program.
11228 *) Added RIPE MD160 (rmd160) message digest.
11231 *) Added -a (all) option to "ssleay version" command.
11234 *) Added PLATFORM define which is the id given to Configure.
11237 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11240 *) Extended the ASN.1 parser routines.
11243 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11246 *) Added a BN_CTX to the BN library.
11249 *) Fixed the weak key values in DES library
11252 *) Changed API in EVP library for cipher aliases.
11255 *) Added support for RC2/64bit cipher.
11258 *) Converted the lhash library to the crypto/mem.c functions.
11261 *) Added more recognized ASN.1 object ids.
11264 *) Added more RSA padding checks for SSL/TLS.
11267 *) Added BIO proxy/filter functionality.
11270 *) Added extra_certs to SSL_CTX which can be used
11271 send extra CA certificates to the client in the CA cert chain sending
11272 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11275 *) Now Fortezza is denied in the authentication phase because
11276 this is key exchange mechanism is not supported by SSLeay at all.
11279 *) Additional PKCS1 checks.
11282 *) Support the string "TLSv1" for all TLS v1 ciphers.
11285 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11286 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11289 *) Fixed a few memory leaks.
11292 *) Fixed various code and comment typos.
11295 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11296 bytes sent in the client random.
11297 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob