5 Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
7 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
8 Access to deprecated functions can be re-enabled by running config with
9 "enable-deprecated". In addition applications wishing to use deprecated
10 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
11 will, by default, disable some transitive includes that previously existed
12 in the header files (e.g. ec.h will no longer, by default, include bn.h)
15 *) Added support for OCB mode. OpenSSL has been granted a patent license
16 compatible with the OpenSSL license for use of OCB. Details are available
17 at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
18 for OCB can be removed by calling config with no-ocb.
21 *) SSLv2 support has been removed. It still supports receiving a SSLv2
22 compatible client hello.
25 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
26 done while fixing the error code for the key-too-small case.
27 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
29 *) Remove various unsupported platforms:
35 Sinix/ReliantUNIX RM400
39 *) Experimental support for a new, fast, unbiased prime candidate generator,
40 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
41 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
43 *) New output format NSS in the sess_id command line tool. This allows
44 exporting the session id and the master key in NSS keylog format.
45 [Martin Kaiser <martin@kaiser.cx>]
47 *) Harmonize version and its documentation. -f flag is used to display
49 [mancha <mancha1@zoho.com>]
51 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
53 [mancha <mancha1@zoho.com>]
55 *) Fix some double frees. These are not thought to be exploitable.
56 [mancha <mancha1@zoho.com>]
58 *) A missing bounds check in the handling of the TLS heartbeat extension
59 can be used to reveal up to 64k of memory to a connected client or
62 Thanks for Neel Mehta of Google Security for discovering this bug and to
63 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
64 preparing the fix (CVE-2014-0160)
65 [Adam Langley, Bodo Moeller]
67 *) Fix for the attack described in the paper "Recovering OpenSSL
68 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
69 by Yuval Yarom and Naomi Benger. Details can be obtained from:
70 http://eprint.iacr.org/2014/140
72 Thanks to Yuval Yarom and Naomi Benger for discovering this
73 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
74 [Yuval Yarom and Naomi Benger]
76 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
77 this fixes a limitation in previous versions of OpenSSL.
80 *) Experimental encrypt-then-mac support.
82 Experimental support for encrypt then mac from
83 draft-gutmann-tls-encrypt-then-mac-02.txt
85 To enable it set the appropriate extension number (0x42 for the test
86 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
88 For non-compliant peers (i.e. just about everything) this should have no
91 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
95 *) Add EVP support for key wrapping algorithms, to avoid problems with
96 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
97 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
98 algorithms and include tests cases.
101 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
105 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
106 MGF1 digest and OAEP label.
109 *) Make openssl verify return errors.
110 [Chris Palmer <palmer@google.com> and Ben Laurie]
112 *) New function ASN1_TIME_diff to calculate the difference between two
113 ASN1_TIME structures or one structure and the current time.
116 *) Update fips_test_suite to support multiple command line options. New
117 test to induce all self test errors in sequence and check expected
121 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
122 sign or verify all in one operation.
125 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
126 test programs and fips_test_suite. Includes functionality to parse
127 the minimal script output of fipsalgest.pl directly.
130 *) Add authorisation parameter to FIPS_module_mode_set().
133 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
136 *) Use separate DRBG fields for internal and external flags. New function
137 FIPS_drbg_health_check() to perform on demand health checking. Add
138 generation tests to fips_test_suite with reduced health check interval to
139 demonstrate periodic health checking. Add "nodh" option to
140 fips_test_suite to skip very slow DH test.
143 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
147 *) More extensive health check for DRBG checking many more failure modes.
148 New function FIPS_selftest_drbg_all() to handle every possible DRBG
149 combination: call this in fips_test_suite.
152 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
153 and POST to handle Dual EC cases.
156 *) Add support for canonical generation of DSA parameter 'g'. See
159 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
160 POST to handle HMAC cases.
163 *) Add functions FIPS_module_version() and FIPS_module_version_text()
164 to return numerical and string versions of the FIPS module number.
167 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
168 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
169 outside the validated module in the FIPS capable OpenSSL.
172 *) Minor change to DRBG entropy callback semantics. In some cases
173 there is no multiple of the block length between min_len and
174 max_len. Allow the callback to return more than max_len bytes
175 of entropy but discard any extra: it is the callback's responsibility
176 to ensure that the extra data discarded does not impact the
177 requested amount of entropy.
180 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
181 information in FIPS186-3, SP800-57 and SP800-131A.
184 *) CCM support via EVP. Interface is very similar to GCM case except we
185 must supply all data in one chunk (i.e. no update, final) and the
186 message length must be supplied if AAD is used. Add algorithm test
190 *) Initial version of POST overhaul. Add POST callback to allow the status
191 of POST to be monitored and/or failures induced. Modify fips_test_suite
192 to use callback. Always run all selftests even if one fails.
195 *) XTS support including algorithm test driver in the fips_gcmtest program.
196 Note: this does increase the maximum key length from 32 to 64 bytes but
197 there should be no binary compatibility issues as existing applications
198 will never use XTS mode.
201 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
202 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
203 performs algorithm blocking for unapproved PRNG types. Also do not
204 set PRNG type in FIPS_mode_set(): leave this to the application.
205 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
206 the standard OpenSSL PRNG: set additional data to a date time vector.
209 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
210 This shouldn't present any incompatibility problems because applications
211 shouldn't be using these directly and any that are will need to rethink
212 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
215 *) Extensive self tests and health checking required by SP800-90 DRBG.
216 Remove strength parameter from FIPS_drbg_instantiate and always
217 instantiate at maximum supported strength.
220 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
223 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
226 *) New function DH_compute_key_padded() to compute a DH key and pad with
227 leading zeroes if needed: this complies with SP800-56A et al.
230 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
231 anything, incomplete, subject to change and largely untested at present.
234 *) Modify fipscanisteronly build option to only build the necessary object
235 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
238 *) Add experimental option FIPSSYMS to give all symbols in
239 fipscanister.o and FIPS or fips prefix. This will avoid
240 conflicts with future versions of OpenSSL. Add perl script
241 util/fipsas.pl to preprocess assembly language source files
242 and rename any affected symbols.
245 *) Add selftest checks and algorithm block of non-fips algorithms in
246 FIPS mode. Remove DES2 from selftests.
249 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
250 return internal method without any ENGINE dependencies. Add new
251 tiny fips sign and verify functions.
254 *) New build option no-ec2m to disable characteristic 2 code.
257 *) New build option "fipscanisteronly". This only builds fipscanister.o
258 and (currently) associated fips utilities. Uses the file Makefile.fips
259 instead of Makefile.org as the prototype.
262 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
263 Update fips_gcmtest to use IV generator.
266 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
267 setting output buffer to NULL. The *Final function must be
268 called although it will not retrieve any additional data. The tag
269 can be set or retrieved with a ctrl. The IV length is by default 12
270 bytes (96 bits) but can be set to an alternative value. If the IV
271 length exceeds the maximum IV length (currently 16 bytes) it cannot be
275 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
276 underlying do_cipher function handles all cipher semantics itself
277 including padding and finalisation. This is useful if (for example)
278 an ENGINE cipher handles block padding itself. The behaviour of
279 do_cipher is subtly changed if this flag is set: the return value
280 is the number of characters written to the output buffer (zero is
281 no longer an error code) or a negative error code. Also if the
282 input buffer is NULL and length 0 finalisation should be performed.
285 *) If a candidate issuer certificate is already part of the constructed
286 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
289 *) Improve forward-security support: add functions
291 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
292 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
294 for use by SSL/TLS servers; the callback function will be called whenever a
295 new session is created, and gets to decide whether the session may be
296 cached to make it resumable (return 0) or not (return 1). (As by the
297 SSL/TLS protocol specifications, the session_id sent by the server will be
298 empty to indicate that the session is not resumable; also, the server will
299 not generate RFC 4507 (RFC 5077) session tickets.)
301 A simple reasonable callback implementation is to return is_forward_secure.
302 This parameter will be set to 1 or 0 depending on the ciphersuite selected
303 by the SSL/TLS server library, indicating whether it can provide forward
305 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
307 *) New -verify_name option in command line utilities to set verification
311 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
312 Add CMAC pkey methods.
315 *) Experimental renegotiation in s_server -www mode. If the client
316 browses /reneg connection is renegotiated. If /renegcert it is
317 renegotiated requesting a certificate.
320 *) Add an "external" session cache for debugging purposes to s_server. This
321 should help trace issues which normally are only apparent in deployed
322 multi-process servers.
325 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
326 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
327 BIO_set_cipher() and some obscure PEM functions were changed so they
328 can now return an error. The RAND changes required a change to the
329 RAND_METHOD structure.
332 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
333 a gcc attribute to warn if the result of a function is ignored. This
334 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
335 whose return value is often ignored.
338 Changes between 1.0.1k and 1.0.2 [xx XXX xxxx]
340 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
341 ARMv5 through ARMv8, as opposite to "locking" it to single one.
342 So far those who have to target multiple plaforms would compromise
343 and argue that binary targeting say ARMv5 would still execute on
344 ARMv8. "Universal" build resolves this compromise by providing
345 near-optimal performance even on newer platforms.
348 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
349 (other platforms pending).
350 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
352 *) Add support for the SignedCertificateTimestampList certificate and
353 OCSP response extensions from RFC6962.
356 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
357 for corner cases. (Certain input points at infinity could lead to
358 bogus results, with non-infinity inputs mapped to infinity too.)
361 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
362 This covers AES, SHA256/512 and GHASH. "Initial" means that most
363 common cases are optimized and there still is room for further
364 improvements. Vector Permutation AES for Altivec is also added.
367 *) Add support for little-endian ppc64 Linux target.
368 [Marcelo Cerri (IBM)]
370 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
371 SHA1, SHA256 and GHASH. "Initial" means that most common cases
372 are optimized and there still is room for further improvements.
373 Both 32- and 64-bit modes are supported.
374 [Andy Polyakov, Ard Biesheuvel (Linaro)]
376 *) Improved ARMv7 NEON support.
379 *) Support for SPARC Architecture 2011 crypto extensions, first
380 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
381 SHA256/512, MD5, GHASH and modular exponentiation.
382 [Andy Polyakov, David Miller]
384 *) Accelerated modular exponentiation for Intel processors, a.k.a.
386 [Shay Gueron & Vlad Krasnov (Intel Corp)]
388 *) Support for new and upcoming Intel processors, including AVX2,
389 BMI and SHA ISA extensions. This includes additional "stitched"
390 implementations, AESNI-SHA256 and GCM, and multi-buffer support
393 This work was sponsored by Intel Corp.
396 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
397 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
398 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
401 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
402 this fixes a limiation in previous versions of OpenSSL.
405 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
406 MGF1 digest and OAEP label.
409 *) Add EVP support for key wrapping algorithms, to avoid problems with
410 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
411 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
412 algorithms and include tests cases.
415 *) Add functions to allocate and set the fields of an ECDSA_METHOD
417 [Douglas E. Engert, Steve Henson]
419 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
420 difference in days and seconds between two tm or ASN1_TIME structures.
423 *) Add -rev test option to s_server to just reverse order of characters
424 received by client and send back to server. Also prints an abbreviated
425 summary of the connection parameters.
428 *) New option -brief for s_client and s_server to print out a brief summary
429 of connection parameters.
432 *) Add callbacks for arbitrary TLS extensions.
433 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
435 *) New option -crl_download in several openssl utilities to download CRLs
436 from CRLDP extension in certificates.
439 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
442 *) New function X509_CRL_diff to generate a delta CRL from the difference
443 of two full CRLs. Add support to "crl" utility.
446 *) New functions to set lookup_crls function and to retrieve
447 X509_STORE from X509_STORE_CTX.
450 *) Print out deprecated issuer and subject unique ID fields in
454 *) Extend OCSP I/O functions so they can be used for simple general purpose
455 HTTP as well as OCSP. New wrapper function which can be used to download
456 CRLs using the OCSP API.
459 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
462 *) SSL_CONF* functions. These provide a common framework for application
463 configuration using configuration files or command lines.
466 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
467 message callback and prints the results. Needs compile time option
468 "enable-ssl-trace". New options to s_client and s_server to enable
472 *) New ctrl and macro to retrieve supported points extensions.
473 Print out extension in s_server and s_client.
476 *) New functions to retrieve certificate signature and signature
480 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
484 *) New Suite B modes for TLS code. These use and enforce the requirements
485 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
486 only use Suite B curves. The Suite B modes can be set by using the
487 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
490 *) New chain verification flags for Suite B levels of security. Check
491 algorithms are acceptable when flags are set in X509_verify_cert.
494 *) Make tls1_check_chain return a set of flags indicating checks passed
495 by a certificate chain. Add additional tests to handle client
496 certificates: checks for matching certificate type and issuer name
500 *) If an attempt is made to use a signature algorithm not in the peer
501 preference list abort the handshake. If client has no suitable
502 signature algorithms in response to a certificate request do not
506 *) If server EC tmp key is not in client preference list abort handshake.
509 *) Add support for certificate stores in CERT structure. This makes it
510 possible to have different stores per SSL structure or one store in
511 the parent SSL_CTX. Include distint stores for certificate chain
512 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
513 to build and store a certificate chain in CERT structure: returing
514 an error if the chain cannot be built: this will allow applications
515 to test if a chain is correctly configured.
517 Note: if the CERT based stores are not set then the parent SSL_CTX
518 store is used to retain compatibility with existing behaviour.
522 *) New function ssl_set_client_disabled to set a ciphersuite disabled
523 mask based on the current session, check mask when sending client
524 hello and checking the requested ciphersuite.
527 *) New ctrls to retrieve and set certificate types in a certificate
528 request message. Print out received values in s_client. If certificate
529 types is not set with custom values set sensible values based on
530 supported signature algorithms.
533 *) Support for distinct client and server supported signature algorithms.
536 *) Add certificate callback. If set this is called whenever a certificate
537 is required by client or server. An application can decide which
538 certificate chain to present based on arbitrary criteria: for example
539 supported signature algorithms. Add very simple example to s_server.
540 This fixes many of the problems and restrictions of the existing client
541 certificate callback: for example you can now clear an existing
542 certificate and specify the whole chain.
545 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
546 the certificate can be used for (if anything). Set valid_flags field
547 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
548 to have similar checks in it.
550 Add new "cert_flags" field to CERT structure and include a "strict mode".
551 This enforces some TLS certificate requirements (such as only permitting
552 certificate signature algorithms contained in the supported algorithms
553 extension) which some implementations ignore: this option should be used
554 with caution as it could cause interoperability issues.
557 *) Update and tidy signature algorithm extension processing. Work out
558 shared signature algorithms based on preferences and peer algorithms
559 and print them out in s_client and s_server. Abort handshake if no
560 shared signature algorithms.
563 *) Add new functions to allow customised supported signature algorithms
564 for SSL and SSL_CTX structures. Add options to s_client and s_server
568 *) New function SSL_certs_clear() to delete all references to certificates
569 from an SSL structure. Before this once a certificate had been added
570 it couldn't be removed.
573 *) Integrate hostname, email address and IP address checking with certificate
574 verification. New verify options supporting checking in opensl utility.
577 *) Fixes and wildcard matching support to hostname and email checking
578 functions. Add manual page.
579 [Florian Weimer (Red Hat Product Security Team)]
581 *) New functions to check a hostname email or IP address against a
582 certificate. Add options x509 utility to print results of checks against
586 *) Fix OCSP checking.
587 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
589 *) Initial experimental support for explicitly trusted non-root CAs.
590 OpenSSL still tries to build a complete chain to a root but if an
591 intermediate CA has a trust setting included that is used. The first
592 setting is used: whether to trust (e.g., -addtrust option to the x509
596 *) Add -trusted_first option which attempts to find certificates in the
597 trusted store even if an untrusted chain is also supplied.
600 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
601 platform support for Linux and Android.
604 *) Support for linux-x32, ILP32 environment in x86_64 framework.
607 *) Experimental multi-implementation support for FIPS capable OpenSSL.
608 When in FIPS mode the approved implementations are used as normal,
609 when not in FIPS mode the internal unapproved versions are used instead.
610 This means that the FIPS capable OpenSSL isn't forced to use the
611 (often lower performance) FIPS implementations outside FIPS mode.
614 *) Transparently support X9.42 DH parameters when calling
615 PEM_read_bio_DHparameters. This means existing applications can handle
616 the new parameter format automatically.
619 *) Initial experimental support for X9.42 DH parameter format: mainly
620 to support use of 'q' parameter for RFC5114 parameters.
623 *) Add DH parameters from RFC5114 including test data to dhtest.
626 *) Support for automatic EC temporary key parameter selection. If enabled
627 the most preferred EC parameters are automatically used instead of
628 hardcoded fixed parameters. Now a server just has to call:
629 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
630 support ECDH and use the most appropriate parameters.
633 *) Enhance and tidy EC curve and point format TLS extension code. Use
634 static structures instead of allocation if default values are used.
635 New ctrls to set curves we wish to support and to retrieve shared curves.
636 Print out shared curves in s_server. New options to s_server and s_client
637 to set list of supported curves.
640 *) New ctrls to retrieve supported signature algorithms and
641 supported curve values as an array of NIDs. Extend openssl utility
642 to print out received values.
645 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
646 between NIDs and the more common NIST names such as "P-256". Enhance
647 ecparam utility and ECC method to recognise the NIST names for curves.
650 *) Enhance SSL/TLS certificate chain handling to support different
651 chains for each certificate instead of one chain in the parent SSL_CTX.
654 *) Support for fixed DH ciphersuite client authentication: where both
655 server and client use DH certificates with common parameters.
658 *) Support for fixed DH ciphersuites: those requiring DH server
662 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
664 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
665 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
666 X509_CINF_get_signature were reverted post internal team review.
668 Changes between 1.0.1j and 1.0.1k [xx XXX xxxx]
670 *) Abort handshake if server key exchange message is omitted for ephemeral
673 Thanks to Karthikeyan Bhargavan for reporting this issue.
677 *) Remove non-export ephemeral RSA code on client and server. This code
678 violated the TLS standard by allowing the use of temporary RSA keys in
679 non-export ciphersuites and could be used by a server to effectively
680 downgrade the RSA key length used to a value smaller than the server
681 certificate. Thanks for Karthikeyan Bhargavan for reporting this issue.
685 *) Ensure that the session ID context of an SSL is updated when its
686 SSL_CTX is updated via SSL_set_SSL_CTX.
688 The session ID context is typically set from the parent SSL_CTX,
689 and can vary with the CTX.
692 *) Fix various certificate fingerprint issues.
694 By using non-DER or invalid encodings outside the signed portion of a
695 certificate the fingerprint can be changed without breaking the signature.
696 Although no details of the signed portion of the certificate can be changed
697 this can cause problems with some applications: e.g. those using the
698 certificate fingerprint for blacklists.
700 1. Reject signatures with non zero unused bits.
702 If the BIT STRING containing the signature has non zero unused bits reject
703 the signature. All current signature algorithms require zero unused bits.
705 2. Check certificate algorithm consistency.
707 Check the AlgorithmIdentifier inside TBS matches the one in the
708 certificate signature. NB: this will result in signature failure
709 errors for some broken certificates.
711 Thanks to Konrad Kraszewski from Google for reporting this issue.
713 3. Check DSA/ECDSA signatures use DER.
715 Reencode DSA/ECDSA signatures and compare with the original received
716 signature. Return an error if there is a mismatch.
718 This will reject various cases including garbage after signature
719 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
720 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
721 (negative or with leading zeroes).
723 Further analysis was conducted and fixes were developed by Stephen Henson
724 of the OpenSSL core team.
729 *) Do not resume sessions on the server if the negotiated protocol
730 version does not match the session's version. Resuming with a different
731 version, while not strictly forbidden by the RFC, is of questionable
732 sanity and breaks all known clients.
733 [David Benjamin, Emilia Käsper]
735 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
736 early CCS messages during renegotiation. (Note that because
737 renegotiation is encrypted, this early CCS was not exploitable.)
740 *) Tighten client-side session ticket handling during renegotiation:
741 ensure that the client only accepts a session ticket if the server sends
742 the extension anew in the ServerHello. Previously, a TLS client would
743 reuse the old extension state and thus accept a session ticket if one was
744 announced in the initial ServerHello.
746 Similarly, ensure that the client requires a session ticket if one
747 was advertised in the ServerHello. Previously, a TLS client would
748 ignore a missing NewSessionTicket message.
751 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
755 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
756 sends a carefully crafted handshake message, to cause OpenSSL to fail
757 to free up to 64k of memory causing a memory leak. This could be
758 exploited in a Denial Of Service attack. This issue affects OpenSSL
759 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
760 whether SRTP is used or configured. Implementations of OpenSSL that
761 have been compiled with OPENSSL_NO_SRTP defined are not affected.
763 The fix was developed by the OpenSSL team.
767 *) Session Ticket Memory Leak.
769 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
770 integrity of that ticket is first verified. In the event of a session
771 ticket integrity check failing, OpenSSL will fail to free memory
772 causing a memory leak. By sending a large number of invalid session
773 tickets an attacker could exploit this issue in a Denial Of Service
778 *) Build option no-ssl3 is incomplete.
780 When OpenSSL is configured with "no-ssl3" as a build option, servers
781 could accept and complete a SSL 3.0 handshake, and clients could be
782 configured to send them.
784 [Akamai and the OpenSSL team]
786 *) Add support for TLS_FALLBACK_SCSV.
787 Client applications doing fallback retries should call
788 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
790 [Adam Langley, Bodo Moeller]
792 *) Add additional DigestInfo checks.
794 Reencode DigestInto in DER and check against the original when
795 verifying RSA signature: this will reject any improperly encoded
796 DigestInfo structures.
798 Note: this is a precautionary measure and no attacks are currently known.
802 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
804 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
805 SRP code can be overrun an internal buffer. Add sanity check that
806 g, A, B < N to SRP code.
808 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
809 Group for discovering this issue.
813 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
814 TLS 1.0 instead of higher protocol versions when the ClientHello message
815 is badly fragmented. This allows a man-in-the-middle attacker to force a
816 downgrade to TLS 1.0 even if both the server and the client support a
817 higher protocol version, by modifying the client's TLS records.
819 Thanks to David Benjamin and Adam Langley (Google) for discovering and
820 researching this issue.
824 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
825 to a denial of service attack. A malicious server can crash the client
826 with a null pointer dereference (read) by specifying an anonymous (EC)DH
827 ciphersuite and sending carefully crafted handshake messages.
829 Thanks to Felix Gröbert (Google) for discovering and researching this
834 *) By sending carefully crafted DTLS packets an attacker could cause openssl
835 to leak memory. This can be exploited through a Denial of Service attack.
836 Thanks to Adam Langley for discovering and researching this issue.
840 *) An attacker can force openssl to consume large amounts of memory whilst
841 processing DTLS handshake messages. This can be exploited through a
842 Denial of Service attack.
843 Thanks to Adam Langley for discovering and researching this issue.
847 *) An attacker can force an error condition which causes openssl to crash
848 whilst processing DTLS packets due to memory being freed twice. This
849 can be exploited through a Denial of Service attack.
850 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
855 *) If a multithreaded client connects to a malicious server using a resumed
856 session and the server sends an ec point format extension it could write
857 up to 255 bytes to freed memory.
859 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
864 *) A malicious server can crash an OpenSSL client with a null pointer
865 dereference (read) by specifying an SRP ciphersuite even though it was not
866 properly negotiated with the client. This can be exploited through a
867 Denial of Service attack.
869 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
870 discovering and researching this issue.
874 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
875 X509_name_oneline, X509_name_print_ex et al. to leak some information
876 from the stack. Applications may be affected if they echo pretty printing
877 output to the attacker.
879 Thanks to Ivan Fratric (Google) for discovering this issue.
881 [Emilia Käsper, and Steve Henson]
883 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
884 for corner cases. (Certain input points at infinity could lead to
885 bogus results, with non-infinity inputs mapped to infinity too.)
888 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
890 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
891 handshake can force the use of weak keying material in OpenSSL
892 SSL/TLS clients and servers.
894 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
895 researching this issue. (CVE-2014-0224)
896 [KIKUCHI Masashi, Steve Henson]
898 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
899 OpenSSL DTLS client the code can be made to recurse eventually crashing
902 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
904 [Imre Rad, Steve Henson]
906 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
907 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
908 client or server. This is potentially exploitable to run arbitrary
909 code on a vulnerable client or server.
911 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
912 [Jüri Aedla, Steve Henson]
914 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
915 are subject to a denial of service attack.
917 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
918 this issue. (CVE-2014-3470)
919 [Felix Gröbert, Ivan Fratric, Steve Henson]
921 *) Harmonize version and its documentation. -f flag is used to display
923 [mancha <mancha1@zoho.com>]
925 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
927 [mancha <mancha1@zoho.com>]
929 *) Fix some double frees. These are not thought to be exploitable.
930 [mancha <mancha1@zoho.com>]
932 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
934 *) A missing bounds check in the handling of the TLS heartbeat extension
935 can be used to reveal up to 64k of memory to a connected client or
938 Thanks for Neel Mehta of Google Security for discovering this bug and to
939 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
940 preparing the fix (CVE-2014-0160)
941 [Adam Langley, Bodo Moeller]
943 *) Fix for the attack described in the paper "Recovering OpenSSL
944 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
945 by Yuval Yarom and Naomi Benger. Details can be obtained from:
946 http://eprint.iacr.org/2014/140
948 Thanks to Yuval Yarom and Naomi Benger for discovering this
949 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
950 [Yuval Yarom and Naomi Benger]
952 *) TLS pad extension: draft-agl-tls-padding-03
954 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
955 TLS client Hello record length value would otherwise be > 255 and
956 less that 512 pad with a dummy extension containing zeroes so it
957 is at least 512 bytes long.
959 [Adam Langley, Steve Henson]
961 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
963 *) Fix for TLS record tampering bug. A carefully crafted invalid
964 handshake could crash OpenSSL with a NULL pointer exception.
965 Thanks to Anton Johansson for reporting this issues.
968 *) Keep original DTLS digest and encryption contexts in retransmission
969 structures so we can use the previous session parameters if they need
970 to be resent. (CVE-2013-6450)
973 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
974 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
975 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
976 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
977 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
978 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
979 [Rob Stradling, Adam Langley]
981 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
983 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
984 supporting platforms or when small records were transferred.
985 [Andy Polyakov, Steve Henson]
987 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
989 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
991 This addresses the flaw in CBC record processing discovered by
992 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
993 at: http://www.isg.rhul.ac.uk/tls/
995 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
996 Security Group at Royal Holloway, University of London
997 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
998 Emilia Käsper for the initial patch.
1000 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1002 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
1003 ciphersuites which can be exploited in a denial of service attack.
1004 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
1005 and detecting this bug and to Wolfgang Ettlinger
1006 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
1010 *) Return an error when checking OCSP signatures when key is NULL.
1011 This fixes a DoS attack. (CVE-2013-0166)
1014 *) Make openssl verify return errors.
1015 [Chris Palmer <palmer@google.com> and Ben Laurie]
1017 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1018 the right response is stapled. Also change SSL_get_certificate()
1019 so it returns the certificate actually sent.
1020 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1021 [Rob Stradling <rob.stradling@comodo.com>]
1023 *) Fix possible deadlock when decoding public keys.
1026 *) Don't use TLS 1.0 record version number in initial client hello
1030 Changes between 1.0.1b and 1.0.1c [10 May 2012]
1032 *) Sanity check record length before skipping explicit IV in TLS
1033 1.2, 1.1 and DTLS to fix DoS attack.
1035 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1036 fuzzing as a service testing platform.
1040 *) Initialise tkeylen properly when encrypting CMS messages.
1041 Thanks to Solar Designer of Openwall for reporting this issue.
1044 *) In FIPS mode don't try to use composite ciphers as they are not
1048 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
1050 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
1051 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
1052 mean any application compiled against OpenSSL 1.0.0 headers setting
1053 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
1054 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
1055 0x10000000L Any application which was previously compiled against
1056 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
1057 will need to be recompiled as a result. Letting be results in
1058 inability to disable specifically TLS 1.1 and in client context,
1059 in unlike event, limit maximum offered version to TLS 1.0 [see below].
1062 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
1063 disable just protocol X, but all protocols above X *if* there are
1064 protocols *below* X still enabled. In more practical terms it means
1065 that if application wants to disable TLS1.0 in favor of TLS1.1 and
1066 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
1067 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
1071 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
1073 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1074 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1075 in CRYPTO_realloc_clean.
1077 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1078 issue and to Adam Langley <agl@chromium.org> for fixing it.
1080 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1082 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
1085 *) Workarounds for some broken servers that "hang" if a client hello
1086 record length exceeds 255 bytes.
1088 1. Do not use record version number > TLS 1.0 in initial client
1089 hello: some (but not all) hanging servers will now work.
1090 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
1091 the number of ciphers sent in the client hello. This should be
1092 set to an even number, such as 50, for example by passing:
1093 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
1094 Most broken servers should now work.
1095 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
1096 TLS 1.2 client support entirely.
1099 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
1102 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
1104 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
1105 STRING form instead of a DigestInfo.
1108 *) The format used for MDC2 RSA signatures is inconsistent between EVP
1109 and the RSA_sign/RSA_verify functions. This was made more apparent when
1110 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
1111 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
1112 the correct format in RSA_verify so both forms transparently work.
1115 *) Some servers which support TLS 1.0 can choke if we initially indicate
1116 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1117 encrypted premaster secret. As a workaround use the maximum permitted
1118 client version in client hello, this should keep such servers happy
1119 and still work with previous versions of OpenSSL.
1122 *) Add support for TLS/DTLS heartbeats.
1123 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1125 *) Add support for SCTP.
1126 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1128 *) Improved PRNG seeding for VOS.
1129 [Paul Green <Paul.Green@stratus.com>]
1131 *) Extensive assembler packs updates, most notably:
1133 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1134 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1135 - x86_64: bit-sliced AES implementation;
1136 - ARM: NEON support, contemporary platforms optimizations;
1137 - s390x: z196 support;
1138 - *: GHASH and GF(2^m) multiplication implementations;
1142 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
1143 (removal of unnecessary code)
1144 [Peter Sylvester <peter.sylvester@edelweb.fr>]
1146 *) Add TLS key material exporter from RFC 5705.
1149 *) Add DTLS-SRTP negotiation from RFC 5764.
1152 *) Add Next Protocol Negotiation,
1153 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
1154 disabled with a no-npn flag to config or Configure. Code donated
1156 [Adam Langley <agl@google.com> and Ben Laurie]
1158 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
1159 NIST-P256, NIST-P521, with constant-time single point multiplication on
1160 typical inputs. Compiler support for the nonstandard type __uint128_t is
1161 required to use this (present in gcc 4.4 and later, for 64-bit builds).
1162 Code made available under Apache License version 2.0.
1164 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
1165 line to include this in your build of OpenSSL, and run "make depend" (or
1166 "make update"). This enables the following EC_METHODs:
1168 EC_GFp_nistp224_method()
1169 EC_GFp_nistp256_method()
1170 EC_GFp_nistp521_method()
1172 EC_GROUP_new_by_curve_name() will automatically use these (while
1173 EC_GROUP_new_curve_GFp() currently prefers the more flexible
1175 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1177 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
1178 all platforms. Move ssize_t definition from e_os.h to the public
1179 header file e_os2.h as it now appears in public header file cms.h
1182 *) New -sigopt option to the ca, req and x509 utilities. Additional
1183 signature parameters can be passed using this option and in
1187 *) Add RSA PSS signing function. This will generate and set the
1188 appropriate AlgorithmIdentifiers for PSS based on those in the
1189 corresponding EVP_MD_CTX structure. No application support yet.
1192 *) Support for companion algorithm specific ASN1 signing routines.
1193 New function ASN1_item_sign_ctx() signs a pre-initialised
1194 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
1195 the appropriate parameters.
1198 *) Add new algorithm specific ASN1 verification initialisation function
1199 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
1200 handling will be the same no matter what EVP_PKEY_METHOD is used.
1201 Add a PSS handler to support verification of PSS signatures: checked
1202 against a number of sample certificates.
1205 *) Add signature printing for PSS. Add PSS OIDs.
1206 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
1208 *) Add algorithm specific signature printing. An individual ASN1 method
1209 can now print out signatures instead of the standard hex dump.
1211 More complex signatures (e.g. PSS) can print out more meaningful
1212 information. Include DSA version that prints out the signature
1216 *) Password based recipient info support for CMS library: implementing
1220 *) Split password based encryption into PBES2 and PBKDF2 functions. This
1221 neatly separates the code into cipher and PBE sections and is required
1222 for some algorithms that split PBES2 into separate pieces (such as
1223 password based CMS).
1226 *) Session-handling fixes:
1227 - Fix handling of connections that are resuming with a session ID,
1228 but also support Session Tickets.
1229 - Fix a bug that suppressed issuing of a new ticket if the client
1230 presented a ticket with an expired session.
1231 - Try to set the ticket lifetime hint to something reasonable.
1232 - Make tickets shorter by excluding irrelevant information.
1233 - On the client side, don't ignore renewed tickets.
1234 [Adam Langley, Bodo Moeller (Google)]
1236 *) Fix PSK session representation.
1239 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
1241 This work was sponsored by Intel.
1244 *) Add GCM support to TLS library. Some custom code is needed to split
1245 the IV between the fixed (from PRF) and explicit (from TLS record)
1246 portions. This adds all GCM ciphersuites supported by RFC5288 and
1247 RFC5289. Generalise some AES* cipherstrings to include GCM and
1248 add a special AESGCM string for GCM only.
1251 *) Expand range of ctrls for AES GCM. Permit setting invocation
1252 field on decrypt and retrieval of invocation field only on encrypt.
1255 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
1256 As required by RFC5289 these ciphersuites cannot be used if for
1257 versions of TLS earlier than 1.2.
1260 *) For FIPS capable OpenSSL interpret a NULL default public key method
1261 as unset and return the appropriate default but do *not* set the default.
1262 This means we can return the appropriate method in applications that
1263 switch between FIPS and non-FIPS modes.
1266 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
1267 ENGINE is used then we cannot handle that in the FIPS module so we
1268 keep original code iff non-FIPS operations are allowed.
1271 *) Add -attime option to openssl utilities.
1272 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
1274 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
1277 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
1278 FIPS EC methods unconditionally for now.
1281 *) New build option no-ec2m to disable characteristic 2 code.
1284 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
1285 all cases can be covered as some introduce binary incompatibilities.
1288 *) Redirect RSA operations to FIPS module including keygen,
1289 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
1292 *) Add similar low level API blocking to ciphers.
1295 *) Low level digest APIs are not approved in FIPS mode: any attempt
1296 to use these will cause a fatal error. Applications that *really* want
1297 to use them can use the private_* version instead.
1300 *) Redirect cipher operations to FIPS module for FIPS builds.
1303 *) Redirect digest operations to FIPS module for FIPS builds.
1306 *) Update build system to add "fips" flag which will link in fipscanister.o
1307 for static and shared library builds embedding a signature if needed.
1310 *) Output TLS supported curves in preference order instead of numerical
1311 order. This is currently hardcoded for the highest order curves first.
1312 This should be configurable so applications can judge speed vs strength.
1315 *) Add TLS v1.2 server support for client authentication.
1318 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
1322 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
1323 FIPS modules versions.
1326 *) Add TLS v1.2 client side support for client authentication. Keep cache
1327 of handshake records longer as we don't know the hash algorithm to use
1328 until after the certificate request message is received.
1331 *) Initial TLS v1.2 client support. Add a default signature algorithms
1332 extension including all the algorithms we support. Parse new signature
1333 format in client key exchange. Relax some ECC signing restrictions for
1334 TLS v1.2 as indicated in RFC5246.
1337 *) Add server support for TLS v1.2 signature algorithms extension. Switch
1338 to new signature format when needed using client digest preference.
1339 All server ciphersuites should now work correctly in TLS v1.2. No client
1340 support yet and no support for client certificates.
1343 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
1344 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
1345 ciphersuites. At present only RSA key exchange ciphersuites work with
1346 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
1347 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
1348 and version checking.
1351 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
1352 with this defined it will not be affected by any changes to ssl internal
1353 structures. Add several utility functions to allow openssl application
1354 to work with OPENSSL_NO_SSL_INTERN defined.
1358 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
1360 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
1363 *) Permit abbreviated handshakes when renegotiating using the function
1364 SSL_renegotiate_abbreviated().
1365 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1367 *) Add call to ENGINE_register_all_complete() to
1368 ENGINE_load_builtin_engines(), so some implementations get used
1369 automatically instead of needing explicit application support.
1372 *) Add support for TLS key exporter as described in RFC5705.
1373 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
1375 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
1376 a few changes are required:
1378 Add SSL_OP_NO_TLSv1_1 flag.
1379 Add TLSv1_1 methods.
1380 Update version checking logic to handle version 1.1.
1381 Add explicit IV handling (ported from DTLS code).
1382 Add command line options to s_client/s_server.
1385 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
1387 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1389 This addresses the flaw in CBC record processing discovered by
1390 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1391 at: http://www.isg.rhul.ac.uk/tls/
1393 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1394 Security Group at Royal Holloway, University of London
1395 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1396 Emilia Käsper for the initial patch.
1398 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1400 *) Return an error when checking OCSP signatures when key is NULL.
1401 This fixes a DoS attack. (CVE-2013-0166)
1404 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1405 the right response is stapled. Also change SSL_get_certificate()
1406 so it returns the certificate actually sent.
1407 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1408 (This is a backport)
1409 [Rob Stradling <rob.stradling@comodo.com>]
1411 *) Fix possible deadlock when decoding public keys.
1414 Changes between 1.0.0i and 1.0.0j [10 May 2012]
1416 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
1419 *) Sanity check record length before skipping explicit IV in DTLS
1422 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1423 fuzzing as a service testing platform.
1427 *) Initialise tkeylen properly when encrypting CMS messages.
1428 Thanks to Solar Designer of Openwall for reporting this issue.
1431 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
1433 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1434 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1435 in CRYPTO_realloc_clean.
1437 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1438 issue and to Adam Langley <agl@chromium.org> for fixing it.
1440 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1442 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1444 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1445 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1446 content decryption and always return the same error. Note: this attack
1447 needs on average 2^20 messages so it only affects automated senders. The
1448 old behaviour can be reenabled in the CMS code by setting the
1449 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1450 an MMA defence is not necessary.
1451 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1452 this issue. (CVE-2012-0884)
1455 *) Fix CVE-2011-4619: make sure we really are receiving a
1456 client hello before rejecting multiple SGC restarts. Thanks to
1457 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1460 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1462 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1463 Thanks to Antonio Martin, Enterprise Secure Access Research and
1464 Development, Cisco Systems, Inc. for discovering this bug and
1465 preparing a fix. (CVE-2012-0050)
1468 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1470 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1471 of the Vaudenay padding oracle attack on CBC mode encryption
1472 which enables an efficient plaintext recovery attack against
1473 the OpenSSL implementation of DTLS. Their attack exploits timing
1474 differences arising during decryption processing. A research
1475 paper describing this attack can be found at:
1476 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1477 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1478 Security Group at Royal Holloway, University of London
1479 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1480 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1481 for preparing the fix. (CVE-2011-4108)
1482 [Robin Seggelmann, Michael Tuexen]
1484 *) Clear bytes used for block padding of SSL 3.0 records.
1486 [Adam Langley (Google)]
1488 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1489 Kadianakis <desnacked@gmail.com> for discovering this issue and
1490 Adam Langley for preparing the fix. (CVE-2011-4619)
1491 [Adam Langley (Google)]
1493 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1494 [Andrey Kulikov <amdeich@gmail.com>]
1496 *) Prevent malformed RFC3779 data triggering an assertion failure.
1497 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1498 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1499 [Rob Austein <sra@hactrn.net>]
1501 *) Improved PRNG seeding for VOS.
1502 [Paul Green <Paul.Green@stratus.com>]
1504 *) Fix ssl_ciph.c set-up race.
1505 [Adam Langley (Google)]
1507 *) Fix spurious failures in ecdsatest.c.
1508 [Emilia Käsper (Google)]
1510 *) Fix the BIO_f_buffer() implementation (which was mixing different
1511 interpretations of the '..._len' fields).
1512 [Adam Langley (Google)]
1514 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1515 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1516 threads won't reuse the same blinding coefficients.
1518 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1519 lock to call BN_BLINDING_invert_ex, and avoids one use of
1520 BN_BLINDING_update for each BN_BLINDING structure (previously,
1521 the last update always remained unused).
1522 [Emilia Käsper (Google)]
1524 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1525 [Bob Buckholz (Google)]
1527 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1529 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1530 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1531 [Kaspar Brand <ossl@velox.ch>]
1533 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1534 for multi-threaded use of ECDH. (CVE-2011-3210)
1535 [Adam Langley (Google)]
1537 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1540 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1541 signature public key algorithm by using OID xref utilities instead.
1542 Before this you could only use some ECC ciphersuites with SHA1 only.
1545 *) Add protection against ECDSA timing attacks as mentioned in the paper
1546 by Billy Bob Brumley and Nicola Tuveri, see:
1548 http://eprint.iacr.org/2011/232.pdf
1550 [Billy Bob Brumley and Nicola Tuveri]
1552 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1554 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1555 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1557 *) Fix bug in string printing code: if *any* escaping is enabled we must
1558 escape the escape character (backslash) or the resulting string is
1562 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1564 *) Disable code workaround for ancient and obsolete Netscape browsers
1565 and servers: an attacker can use it in a ciphersuite downgrade attack.
1566 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1569 *) Fixed J-PAKE implementation error, originally discovered by
1570 Sebastien Martini, further info and confirmation from Stefan
1571 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1574 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1576 *) Fix extension code to avoid race conditions which can result in a buffer
1577 overrun vulnerability: resumed sessions must not be modified as they can
1578 be shared by multiple threads. CVE-2010-3864
1581 *) Fix WIN32 build system to correctly link an ENGINE directory into
1585 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1587 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1589 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1591 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1593 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1594 context. The operation can be customised via the ctrl mechanism in
1595 case ENGINEs want to include additional functionality.
1598 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1601 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1602 output hashes compatible with older versions of OpenSSL.
1603 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1605 *) Fix compression algorithm handling: if resuming a session use the
1606 compression algorithm of the resumed session instead of determining
1607 it from client hello again. Don't allow server to change algorithm.
1610 *) Add load_crls() function to apps tidying load_certs() too. Add option
1611 to verify utility to allow additional CRLs to be included.
1614 *) Update OCSP request code to permit adding custom headers to the request:
1615 some responders need this.
1618 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1620 [Julia Lawall <julia@diku.dk>]
1622 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1623 needlessly dereferenced structures, used obsolete functions and
1624 didn't handle all updated verify codes correctly.
1627 *) Disable MD2 in the default configuration.
1630 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1631 indicate the initial BIO being pushed or popped. This makes it possible
1632 to determine whether the BIO is the one explicitly called or as a result
1633 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1634 it handles reference counts correctly and doesn't zero out the I/O bio
1635 when it is not being explicitly popped. WARNING: applications which
1636 included workarounds for the old buggy behaviour will need to be modified
1637 or they could free up already freed BIOs.
1640 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1641 renaming to all platforms (within the 0.9.8 branch, this was
1642 done conditionally on Netware platforms to avoid a name clash).
1643 [Guenter <lists@gknw.net>]
1645 *) Add ECDHE and PSK support to DTLS.
1646 [Michael Tuexen <tuexen@fh-muenster.de>]
1648 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1652 *) Add "missing" function EVP_MD_flags() (without this the only way to
1653 retrieve a digest flags is by accessing the structure directly. Update
1654 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1655 or cipher is registered as in the "from" argument. Print out all
1656 registered digests in the dgst usage message instead of manually
1657 attempting to work them out.
1660 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1661 this allows the use of compression and extensions. Change default cipher
1662 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1663 by default unless an application cipher string requests it.
1666 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1667 key ids to find matching certificates and keys but some PKCS#12 files
1668 don't follow the (somewhat unwritten) rules and this strategy fails.
1669 Now just gather all certificates together and the first private key
1670 then look for the first certificate that matches the key.
1673 *) Support use of registered digest and cipher names for dgst and cipher
1674 commands instead of having to add each one as a special case. So now
1681 openssl dgst -sha256 foo
1683 and this works for ENGINE based algorithms too.
1687 *) Update Gost ENGINE to support parameter files.
1688 [Victor B. Wagner <vitus@cryptocom.ru>]
1690 *) Support GeneralizedTime in ca utility.
1691 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1693 *) Enhance the hash format used for certificate directory links. The new
1694 form uses the canonical encoding (meaning equivalent names will work
1695 even if they aren't identical) and uses SHA1 instead of MD5. This form
1696 is incompatible with the older format and as a result c_rehash should
1697 be used to rebuild symbolic links.
1700 *) Make PKCS#8 the default write format for private keys, replacing the
1701 traditional format. This form is standardised, more secure and doesn't
1702 include an implicit MD5 dependency.
1705 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1706 committed to OpenSSL should pass this lot as a minimum.
1709 *) Add session ticket override functionality for use by EAP-FAST.
1710 [Jouni Malinen <j@w1.fi>]
1712 *) Modify HMAC functions to return a value. Since these can be implemented
1713 in an ENGINE errors can occur.
1716 *) Type-checked OBJ_bsearch_ex.
1719 *) Type-checked OBJ_bsearch. Also some constification necessitated
1720 by type-checking. Still to come: TXT_DB, bsearch(?),
1721 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1725 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1726 seconds to a tm structure directly, instead of going through OS
1727 specific date routines. This avoids any issues with OS routines such
1728 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1729 and X509_time_adj_ex() to cover the extended range. The existing
1730 X509_time_adj() is still usable and will no longer have any date issues.
1733 *) Delta CRL support. New use deltas option which will attempt to locate
1734 and search any appropriate delta CRLs available.
1736 This work was sponsored by Google.
1739 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1740 code and add additional score elements. Validate alternate CRL paths
1741 as part of the CRL checking and indicate a new error "CRL path validation
1742 error" in this case. Applications wanting additional details can use
1743 the verify callback and check the new "parent" field. If this is not
1744 NULL CRL path validation is taking place. Existing applications wont
1745 see this because it requires extended CRL support which is off by
1748 This work was sponsored by Google.
1751 *) Support for freshest CRL extension.
1753 This work was sponsored by Google.
1756 *) Initial indirect CRL support. Currently only supported in the CRLs
1757 passed directly and not via lookup. Process certificate issuer
1758 CRL entry extension and lookup CRL entries by bother issuer name
1759 and serial number. Check and process CRL issuer entry in IDP extension.
1761 This work was sponsored by Google.
1764 *) Add support for distinct certificate and CRL paths. The CRL issuer
1765 certificate is validated separately in this case. Only enabled if
1766 an extended CRL support flag is set: this flag will enable additional
1767 CRL functionality in future.
1769 This work was sponsored by Google.
1772 *) Add support for policy mappings extension.
1774 This work was sponsored by Google.
1777 *) Fixes to pathlength constraint, self issued certificate handling,
1778 policy processing to align with RFC3280 and PKITS tests.
1780 This work was sponsored by Google.
1783 *) Support for name constraints certificate extension. DN, email, DNS
1784 and URI types are currently supported.
1786 This work was sponsored by Google.
1789 *) To cater for systems that provide a pointer-based thread ID rather
1790 than numeric, deprecate the current numeric thread ID mechanism and
1791 replace it with a structure and associated callback type. This
1792 mechanism allows a numeric "hash" to be extracted from a thread ID in
1793 either case, and on platforms where pointers are larger than 'long',
1794 mixing is done to help ensure the numeric 'hash' is usable even if it
1795 can't be guaranteed unique. The default mechanism is to use "&errno"
1796 as a pointer-based thread ID to distinguish between threads.
1798 Applications that want to provide their own thread IDs should now use
1799 CRYPTO_THREADID_set_callback() to register a callback that will call
1800 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1802 Note that ERR_remove_state() is now deprecated, because it is tied
1803 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1804 to free the current thread's error state should be replaced by
1805 ERR_remove_thread_state(NULL).
1807 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1808 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1809 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1810 application was previously providing a numeric thread callback that
1811 was inappropriate for distinguishing threads, then uniqueness might
1812 have been obtained with &errno that happened immediately in the
1813 intermediate development versions of OpenSSL; this is no longer the
1814 case, the numeric thread callback will now override the automatic use
1816 [Geoff Thorpe, with help from Bodo Moeller]
1818 *) Initial support for different CRL issuing certificates. This covers a
1819 simple case where the self issued certificates in the chain exist and
1820 the real CRL issuer is higher in the existing chain.
1822 This work was sponsored by Google.
1825 *) Removed effectively defunct crypto/store from the build.
1828 *) Revamp of STACK to provide stronger type-checking. Still to come:
1829 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1830 ASN1_STRING, CONF_VALUE.
1833 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1834 RAM on SSL connections. This option can save about 34k per idle SSL.
1837 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1838 STACK, TXT_DB, bsearch, qsort.
1841 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1842 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1843 support for data, signedData, compressedData, digestedData and
1844 encryptedData, envelopedData types included. Scripts to check against
1845 RFC4134 examples draft and interop and consistency checks of many
1846 content types and variants.
1849 *) Add options to enc utility to support use of zlib compression BIO.
1852 *) Extend mk1mf to support importing of options and assembly language
1853 files from Configure script, currently only included in VC-WIN32.
1854 The assembly language rules can now optionally generate the source
1855 files from the associated perl scripts.
1858 *) Implement remaining functionality needed to support GOST ciphersuites.
1859 Interop testing has been performed using CryptoPro implementations.
1860 [Victor B. Wagner <vitus@cryptocom.ru>]
1862 *) s390x assembler pack.
1865 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1869 *) Implement Opaque PRF Input TLS extension as specified in
1870 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1871 official specification yet and no extension type assignment by
1872 IANA exists, this extension (for now) will have to be explicitly
1873 enabled when building OpenSSL by providing the extension number
1874 to use. For example, specify an option
1876 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1878 to the "config" or "Configure" script to enable the extension,
1879 assuming extension number 0x9527 (which is a completely arbitrary
1880 and unofficial assignment based on the MD5 hash of the Internet
1881 Draft). Note that by doing so, you potentially lose
1882 interoperability with other TLS implementations since these might
1883 be using the same extension number for other purposes.
1885 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1886 opaque PRF input value to use in the handshake. This will create
1887 an interal copy of the length-'len' string at 'src', and will
1888 return non-zero for success.
1890 To get more control and flexibility, provide a callback function
1893 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1894 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1898 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1901 Callback function 'cb' will be called in handshakes, and is
1902 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1903 Argument 'arg' is for application purposes (the value as given to
1904 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1905 be provided to the callback function). The callback function
1906 has to return non-zero to report success: usually 1 to use opaque
1907 PRF input just if possible, or 2 to enforce use of the opaque PRF
1908 input. In the latter case, the library will abort the handshake
1909 if opaque PRF input is not successfully negotiated.
1911 Arguments 'peerinput' and 'len' given to the callback function
1912 will always be NULL and 0 in the case of a client. A server will
1913 see the client's opaque PRF input through these variables if
1914 available (NULL and 0 otherwise). Note that if the server
1915 provides an opaque PRF input, the length must be the same as the
1916 length of the client's opaque PRF input.
1918 Note that the callback function will only be called when creating
1919 a new session (session resumption can resume whatever was
1920 previously negotiated), and will not be called in SSL 2.0
1921 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1922 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1923 for applications that need to enforce opaque PRF input.
1927 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1930 [Victor B. Wagner <vitus@cryptocom.ru>]
1932 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1933 RFC4507bis. The encrypted ticket format is an encrypted encoded
1934 SSL_SESSION structure, that way new session features are automatically
1937 If a client application caches session in an SSL_SESSION structure
1938 support is transparent because tickets are now stored in the encoded
1941 The SSL_CTX structure automatically generates keys for ticket
1942 protection in servers so again support should be possible
1943 with no application modification.
1945 If a client or server wishes to disable RFC4507 support then the option
1946 SSL_OP_NO_TICKET can be set.
1948 Add a TLS extension debugging callback to allow the contents of any client
1949 or server extensions to be examined.
1951 This work was sponsored by Google.
1954 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1955 OpenSSL should now compile cleanly on gcc 4.2
1956 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1958 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1959 support including streaming MAC support: this is required for GOST
1960 ciphersuite support.
1961 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1963 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1964 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1965 to output in BER and PEM format.
1968 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1969 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1970 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1971 ENGINE support for HMAC keys which are unextractable. New -mac and
1972 -macopt options to dgst utility.
1975 *) New option -sigopt to dgst utility. Update dgst to use
1976 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1977 alternative signing paramaters such as X9.31 or PSS in the dgst
1981 *) Change ssl_cipher_apply_rule(), the internal function that does
1982 the work each time a ciphersuite string requests enabling
1983 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1984 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1985 the order of disabled ciphersuites such that those ciphersuites
1986 that most recently went from enabled to disabled not only stay
1987 in order with respect to each other, but also have higher priority
1988 than other disabled ciphersuites the next time ciphersuites are
1991 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1992 the same ciphersuites as with "HIGH" alone, but in a specific
1993 order where the PSK ciphersuites come first (since they are the
1994 most recently disabled ciphersuites when "HIGH" is parsed).
1996 Also, change ssl_create_cipher_list() (using this new
1997 funcionality) such that between otherwise identical
1998 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
2002 *) Change ssl_create_cipher_list() so that it automatically
2003 arranges the ciphersuites in reasonable order before starting
2004 to process the rule string. Thus, the definition for "DEFAULT"
2005 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
2006 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
2007 This makes it much easier to arrive at a reasonable default order
2008 in applications for which anonymous ciphers are OK (meaning
2009 that you can't actually use DEFAULT).
2010 [Bodo Moeller; suggested by Victor Duchovni]
2012 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
2013 processing) into multiple integers instead of setting
2014 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
2015 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
2016 (These masks as well as the individual bit definitions are hidden
2017 away into the non-exported interface ssl/ssl_locl.h, so this
2018 change to the definition of the SSL_CIPHER structure shouldn't
2019 affect applications.) This give us more bits for each of these
2020 categories, so there is no longer a need to coagulate AES128 and
2021 AES256 into a single algorithm bit, and to coagulate Camellia128
2022 and Camellia256 into a single algorithm bit, which has led to all
2025 Thus, among other things, the kludge introduced in 0.9.7m and
2026 0.9.8e for masking out AES256 independently of AES128 or masking
2027 out Camellia256 independently of AES256 is not needed here in 0.9.9.
2029 With the change, we also introduce new ciphersuite aliases that
2030 so far were missing: "AES128", "AES256", "CAMELLIA128", and
2034 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
2035 Use the leftmost N bytes of the signature input if the input is
2036 larger than the prime q (with N being the size in bytes of q).
2039 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
2040 it yet and it is largely untested.
2043 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
2046 *) Initial incomplete changes to avoid need for function casts in OpenSSL
2047 some compilers (gcc 4.2 and later) reject their use. Safestack is
2048 reimplemented. Update ASN1 to avoid use of legacy functions.
2051 *) Win32/64 targets are linked with Winsock2.
2054 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
2055 to external functions. This can be used to increase CRL handling
2056 efficiency especially when CRLs are very large by (for example) storing
2057 the CRL revoked certificates in a database.
2060 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
2061 new CRLs added to a directory can be used. New command line option
2062 -verify_return_error to s_client and s_server. This causes real errors
2063 to be returned by the verify callback instead of carrying on no matter
2064 what. This reflects the way a "real world" verify callback would behave.
2067 *) GOST engine, supporting several GOST algorithms and public key formats.
2068 Kindly donated by Cryptocom.
2071 *) Partial support for Issuing Distribution Point CRL extension. CRLs
2072 partitioned by DP are handled but no indirect CRL or reason partitioning
2073 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
2074 selected via a scoring technique which handles IDP and AKID in CRLs.
2077 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
2078 will ultimately be used for all verify operations: this will remove the
2079 X509_STORE dependency on certificate verification and allow alternative
2080 lookup methods. X509_STORE based implementations of these two callbacks.
2083 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2084 Modify get_crl() to find a valid (unexpired) CRL if possible.
2087 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2088 this would be called X509_CRL_cmp() but that name is already used by
2089 a function that just compares CRL issuer names. Cache several CRL
2090 extensions in X509_CRL structure and cache CRLDP in X509.
2093 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2094 this maps equivalent X509_NAME structures into a consistent structure.
2095 Name comparison can then be performed rapidly using memcmp().
2098 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2102 *) Allow digests to supply their own micalg string for S/MIME type using
2103 the ctrl EVP_MD_CTRL_MICALG.
2106 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2107 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2108 ctrl. It can then customise the structure before and/or after signing
2112 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2113 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2114 to free up any added signature OIDs.
2117 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2118 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2119 digest and cipher tables. New options added to openssl utility:
2120 list-message-digest-algorithms and list-cipher-algorithms.
2123 *) Change the array representation of binary polynomials: the list
2124 of degrees of non-zero coefficients is now terminated with -1.
2125 Previously it was terminated with 0, which was also part of the
2126 value; thus, the array representation was not applicable to
2127 polynomials where t^0 has coefficient zero. This change makes
2128 the array representation useful in a more general context.
2131 *) Various modifications and fixes to SSL/TLS cipher string
2132 handling. For ECC, the code now distinguishes between fixed ECDH
2133 with RSA certificates on the one hand and with ECDSA certificates
2134 on the other hand, since these are separate ciphersuites. The
2135 unused code for Fortezza ciphersuites has been removed.
2137 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2138 (not "ECDHE"). For consistency with the code for DH
2139 certificates, use of ECDH certificates is now considered ECDH
2140 authentication, not RSA or ECDSA authentication (the latter is
2141 merely the CA's signing algorithm and not actively used in the
2144 The temporary ciphersuite alias "ECCdraft" is no longer
2145 available, and ECC ciphersuites are no longer excluded from "ALL"
2146 and "DEFAULT". The following aliases now exist for RFC 4492
2147 ciphersuites, most of these by analogy with the DH case:
2149 kECDHr - ECDH cert, signed with RSA
2150 kECDHe - ECDH cert, signed with ECDSA
2151 kECDH - ECDH cert (signed with either RSA or ECDSA)
2152 kEECDH - ephemeral ECDH
2153 ECDH - ECDH cert or ephemeral ECDH
2159 AECDH - anonymous ECDH
2160 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2164 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2165 Use correct micalg parameters depending on digest(s) in signed message.
2168 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2169 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2172 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2173 an engine to register a method. Add ENGINE lookups for methods and
2174 functional reference processing.
2177 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2178 EVP_{Sign,Verify}* which allow an application to customise the signature
2182 *) New -resign option to smime utility. This adds one or more signers
2183 to an existing PKCS#7 signedData structure. Also -md option to use an
2184 alternative message digest algorithm for signing.
2187 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2188 create PKCS7 structures containing multiple signers. Update smime
2189 application to support multiple signers.
2192 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2196 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2197 Reorganize PBE internals to lookup from a static table using NIDs,
2198 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2199 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
2200 PRF which will be automatically used with PBES2.
2203 *) Replace the algorithm specific calls to generate keys in "req" with the
2207 *) Update PKCS#7 enveloped data routines to use new API. This is now
2208 supported by any public key method supporting the encrypt operation. A
2209 ctrl is added to allow the public key algorithm to examine or modify
2210 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
2214 *) Add a ctrl to asn1 method to allow a public key algorithm to express
2215 a default digest type to use. In most cases this will be SHA1 but some
2216 algorithms (such as GOST) need to specify an alternative digest. The
2217 return value indicates how strong the preference is 1 means optional and
2218 2 is mandatory (that is it is the only supported type). Modify
2219 ASN1_item_sign() to accept a NULL digest argument to indicate it should
2220 use the default md. Update openssl utilities to use the default digest
2221 type for signing if it is not explicitly indicated.
2224 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
2225 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
2226 signing method from the key type. This effectively removes the link
2227 between digests and public key types.
2230 *) Add an OID cross reference table and utility functions. Its purpose is to
2231 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
2232 rsaEncryption. This will allow some of the algorithm specific hackery
2233 needed to use the correct OID to be removed.
2236 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
2237 structures for PKCS7_sign(). They are now set up by the relevant public
2241 *) Add provisional EC pkey method with support for ECDSA and ECDH.
2244 *) Add support for key derivation (agreement) in the API, DH method and
2248 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
2249 public and private key formats. As a side effect these add additional
2250 command line functionality not previously available: DSA signatures can be
2251 generated and verified using pkeyutl and DH key support and generation in
2256 [Oliver Tappe <zooey@hirschkaefer.de>]
2258 *) New make target "install_html_docs" installs HTML renditions of the
2260 [Oliver Tappe <zooey@hirschkaefer.de>]
2262 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
2263 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
2264 support key and parameter generation and add initial key generation
2265 functionality for RSA.
2268 *) Add functions for main EVP_PKEY_method operations. The undocumented
2269 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
2270 EVP_PKEY_{encrypt,decrypt}_old.
2273 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
2274 key API, doesn't do much yet.
2277 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
2278 public key algorithms. New option to openssl utility:
2279 "list-public-key-algorithms" to print out info.
2282 *) Implement the Supported Elliptic Curves Extension for
2283 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2286 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
2287 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
2290 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
2291 utilities such as rsa, dsa, dsaparam etc except they process any key
2295 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
2296 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
2297 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
2301 *) Initial support for pluggable public key ASN1.
2302 De-spaghettify the public key ASN1 handling. Move public and private
2303 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
2304 algorithm specific handling to a single module within the relevant
2305 algorithm directory. Add functions to allow (near) opaque processing
2306 of public and private key structures.
2309 *) Implement the Supported Point Formats Extension for
2310 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2313 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
2314 for the psk identity [hint] and the psk callback functions to the
2315 SSL_SESSION, SSL and SSL_CTX structure.
2318 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
2322 SSL_CTX_use_psk_identity_hint
2323 SSL_get_psk_identity_hint
2324 SSL_get_psk_identity
2325 SSL_use_psk_identity_hint
2327 [Mika Kousa and Pasi Eronen of Nokia Corporation]
2329 *) Add RFC 3161 compliant time stamp request creation, response generation
2330 and response verification functionality.
2331 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
2333 *) Add initial support for TLS extensions, specifically for the server_name
2334 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2335 have new members for a host name. The SSL data structure has an
2336 additional member SSL_CTX *initial_ctx so that new sessions can be
2337 stored in that context to allow for session resumption, even after the
2338 SSL has been switched to a new SSL_CTX in reaction to a client's
2339 server_name extension.
2341 New functions (subject to change):
2343 SSL_get_servername()
2344 SSL_get_servername_type()
2347 New CTRL codes and macros (subject to change):
2349 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2350 - SSL_CTX_set_tlsext_servername_callback()
2351 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2352 - SSL_CTX_set_tlsext_servername_arg()
2353 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2355 openssl s_client has a new '-servername ...' option.
2357 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2358 '-key2 ...', '-servername_fatal' (subject to change). This allows
2359 testing the HostName extension for a specific single host name ('-cert'
2360 and '-key' remain fallbacks for handshakes without HostName
2361 negotiation). If the unrecognized_name alert has to be sent, this by
2362 default is a warning; it becomes fatal with the '-servername_fatal'
2365 [Peter Sylvester, Remy Allais, Christophe Renou]
2367 *) Whirlpool hash implementation is added.
2370 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
2371 bn(64,32). Because of instruction set limitations it doesn't have
2372 any negative impact on performance. This was done mostly in order
2373 to make it possible to share assembler modules, such as bn_mul_mont
2374 implementations, between 32- and 64-bit builds without hassle.
2377 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
2378 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
2382 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
2383 dedicated Montgomery multiplication procedure, is introduced.
2384 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
2385 "64-bit" performance on certain 32-bit targets.
2388 *) New option SSL_OP_NO_COMP to disable use of compression selectively
2389 in SSL structures. New SSL ctrl to set maximum send fragment size.
2390 Save memory by seeting the I/O buffer sizes dynamically instead of
2391 using the maximum available value.
2394 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
2395 in addition to the text details.
2398 *) Very, very preliminary EXPERIMENTAL support for printing of general
2399 ASN1 structures. This currently produces rather ugly output and doesn't
2400 handle several customised structures at all.
2403 *) Integrated support for PVK file format and some related formats such
2404 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
2405 these in the 'rsa' and 'dsa' utilities.
2408 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
2411 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
2412 place for the (very old) "NETSCAPE" format certificates which are now
2413 handled using new ASN1 code equivalents.
2416 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
2417 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
2418 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
2421 *) Modify CRL distribution points extension code to print out previously
2422 unsupported fields. Enhance extension setting code to allow setting of
2426 *) Add print and set support for Issuing Distribution Point CRL extension.
2429 *) Change 'Configure' script to enable Camellia by default.
2432 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
2434 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
2436 This addresses the flaw in CBC record processing discovered by
2437 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
2438 at: http://www.isg.rhul.ac.uk/tls/
2440 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2441 Security Group at Royal Holloway, University of London
2442 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
2443 Emilia Käsper for the initial patch.
2445 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
2447 *) Return an error when checking OCSP signatures when key is NULL.
2448 This fixes a DoS attack. (CVE-2013-0166)
2451 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
2452 the right response is stapled. Also change SSL_get_certificate()
2453 so it returns the certificate actually sent.
2454 See http://rt.openssl.org/Ticket/Display.html?id=2836.
2455 (This is a backport)
2456 [Rob Stradling <rob.stradling@comodo.com>]
2458 *) Fix possible deadlock when decoding public keys.
2461 Changes between 0.9.8w and 0.9.8x [10 May 2012]
2463 *) Sanity check record length before skipping explicit IV in DTLS
2466 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
2467 fuzzing as a service testing platform.
2471 *) Initialise tkeylen properly when encrypting CMS messages.
2472 Thanks to Solar Designer of Openwall for reporting this issue.
2475 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
2477 *) The fix for CVE-2012-2110 did not take into account that the
2478 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
2479 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
2480 rejecting negative len parameter. (CVE-2012-2131)
2481 [Tomas Hoger <thoger@redhat.com>]
2483 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
2485 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
2486 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
2487 in CRYPTO_realloc_clean.
2489 Thanks to Tavis Ormandy, Google Security Team, for discovering this
2490 issue and to Adam Langley <agl@chromium.org> for fixing it.
2492 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
2494 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
2496 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2497 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2498 content decryption and always return the same error. Note: this attack
2499 needs on average 2^20 messages so it only affects automated senders. The
2500 old behaviour can be reenabled in the CMS code by setting the
2501 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2502 an MMA defence is not necessary.
2503 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2504 this issue. (CVE-2012-0884)
2507 *) Fix CVE-2011-4619: make sure we really are receiving a
2508 client hello before rejecting multiple SGC restarts. Thanks to
2509 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2512 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
2514 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2515 Thanks to Antonio Martin, Enterprise Secure Access Research and
2516 Development, Cisco Systems, Inc. for discovering this bug and
2517 preparing a fix. (CVE-2012-0050)
2520 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
2522 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2523 of the Vaudenay padding oracle attack on CBC mode encryption
2524 which enables an efficient plaintext recovery attack against
2525 the OpenSSL implementation of DTLS. Their attack exploits timing
2526 differences arising during decryption processing. A research
2527 paper describing this attack can be found at:
2528 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2529 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2530 Security Group at Royal Holloway, University of London
2531 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2532 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2533 for preparing the fix. (CVE-2011-4108)
2534 [Robin Seggelmann, Michael Tuexen]
2536 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
2537 [Ben Laurie, Kasper <ekasper@google.com>]
2539 *) Clear bytes used for block padding of SSL 3.0 records.
2541 [Adam Langley (Google)]
2543 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2544 Kadianakis <desnacked@gmail.com> for discovering this issue and
2545 Adam Langley for preparing the fix. (CVE-2011-4619)
2546 [Adam Langley (Google)]
2548 *) Prevent malformed RFC3779 data triggering an assertion failure.
2549 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2550 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2551 [Rob Austein <sra@hactrn.net>]
2553 *) Fix ssl_ciph.c set-up race.
2554 [Adam Langley (Google)]
2556 *) Fix spurious failures in ecdsatest.c.
2557 [Emilia Käsper (Google)]
2559 *) Fix the BIO_f_buffer() implementation (which was mixing different
2560 interpretations of the '..._len' fields).
2561 [Adam Langley (Google)]
2563 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2564 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2565 threads won't reuse the same blinding coefficients.
2567 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2568 lock to call BN_BLINDING_invert_ex, and avoids one use of
2569 BN_BLINDING_update for each BN_BLINDING structure (previously,
2570 the last update always remained unused).
2571 [Emilia Käsper (Google)]
2573 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2574 for multi-threaded use of ECDH.
2575 [Adam Langley (Google)]
2577 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2580 *) Add protection against ECDSA timing attacks as mentioned in the paper
2581 by Billy Bob Brumley and Nicola Tuveri, see:
2583 http://eprint.iacr.org/2011/232.pdf
2585 [Billy Bob Brumley and Nicola Tuveri]
2587 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
2589 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2590 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2592 *) Fix bug in string printing code: if *any* escaping is enabled we must
2593 escape the escape character (backslash) or the resulting string is
2597 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
2599 *) Disable code workaround for ancient and obsolete Netscape browsers
2600 and servers: an attacker can use it in a ciphersuite downgrade attack.
2601 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2604 *) Fixed J-PAKE implementation error, originally discovered by
2605 Sebastien Martini, further info and confirmation from Stefan
2606 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2609 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
2611 *) Fix extension code to avoid race conditions which can result in a buffer
2612 overrun vulnerability: resumed sessions must not be modified as they can
2613 be shared by multiple threads. CVE-2010-3864
2616 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
2619 *) Don't reencode certificate when calculating signature: cache and use
2620 the original encoding instead. This makes signature verification of
2621 some broken encodings work correctly.
2624 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
2625 is also one of the inputs.
2626 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
2628 *) Don't repeatedly append PBE algorithms to table if they already exist.
2629 Sort table on each new add. This effectively makes the table read only
2630 after all algorithms are added and subsequent calls to PKCS12_pbe_add
2634 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
2636 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
2639 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
2640 access or freeing data twice (CVE-2010-0742)
2641 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
2643 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
2644 common in certificates and some applications which only call
2645 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2649 Reduce copying into .apps and .test in makevms.com
2650 Don't try to use blank CA certificate in CA.com
2651 Allow use of C files from original directories in maketests.com
2652 [Steven M. Schweda" <sms@antinode.info>]
2654 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2656 *) When rejecting SSL/TLS records due to an incorrect version number, never
2657 update s->server with a new major version number. As of
2658 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2659 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2660 the previous behavior could result in a read attempt at NULL when
2661 receiving specific incorrect SSL/TLS records once record payload
2662 protection is active. (CVE-2010-0740)
2663 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2665 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2666 could be crashed if the relevant tables were not present (e.g. chrooted).
2667 [Tomas Hoger <thoger@redhat.com>]
2669 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2671 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2672 [Martin Olsson, Neel Mehta]
2674 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2675 accommodate for stack sorting, always a write lock!).
2678 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2679 excessive delays in the RAND_poll(): over a minute. As a workaround
2680 include a time check in the inner Heap32Next loop too.
2683 *) The code that handled flushing of data in SSL/TLS originally used the
2684 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2685 the problem outlined in PR#1949. The fix suggested there however can
2686 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2687 of Apache). So instead simplify the code to flush unconditionally.
2688 This should be fine since flushing with no data to flush is a no op.
2691 *) Handle TLS versions 2.0 and later properly and correctly use the
2692 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2693 off ancient servers have a habit of sticking around for a while...
2696 *) Modify compression code so it frees up structures without using the
2697 ex_data callbacks. This works around a problem where some applications
2698 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2699 restarting) then use compression (e.g. SSL with compression) later.
2700 This results in significant per-connection memory leaks and
2701 has caused some security issues including CVE-2008-1678 and
2705 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2706 change when encrypting or decrypting.
2709 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2710 connect and renegotiate with servers which do not support RI.
2711 Until RI is more widely deployed this option is enabled by default.
2714 *) Add "missing" ssl ctrls to clear options and mode.
2717 *) If client attempts to renegotiate and doesn't support RI respond with
2718 a no_renegotiation alert as required by RFC5746. Some renegotiating
2719 TLS clients will continue a connection gracefully when they receive
2720 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2721 waiting for a server hello which it will never receive. Now we treat a
2722 received no_renegotiation alert as a fatal error. This is because
2723 applications requesting a renegotiation might well expect it to succeed
2724 and would have no code in place to handle the server denying it so the
2725 only safe thing to do is to terminate the connection.
2728 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2729 peer supports secure renegotiation and 0 otherwise. Print out peer
2730 renegotiation support in s_client/s_server.
2733 *) Replace the highly broken and deprecated SPKAC certification method with
2734 the updated NID creation version. This should correctly handle UTF8.
2737 *) Implement RFC5746. Re-enable renegotiation but require the extension
2738 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2739 turns out to be a bad idea. It has been replaced by
2740 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2741 SSL_CTX_set_options(). This is really not recommended unless you
2742 know what you are doing.
2743 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2745 *) Fixes to stateless session resumption handling. Use initial_ctx when
2746 issuing and attempting to decrypt tickets in case it has changed during
2747 servername handling. Use a non-zero length session ID when attempting
2748 stateless session resumption: this makes it possible to determine if
2749 a resumption has occurred immediately after receiving server hello
2750 (several places in OpenSSL subtly assume this) instead of later in
2754 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2755 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2756 fixes for a few places where the return code is not checked
2758 [Julia Lawall <julia@diku.dk>]
2760 *) Add --strict-warnings option to Configure script to include devteam
2761 warnings in other configurations.
2764 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2765 makes it possible to install openssl libraries in locations which
2766 have names other than "lib", for example "/usr/lib64" which some
2768 [Steve Henson, based on patch from Jeremy Utley]
2770 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2771 X690 8.9.12 and can produce some misleading textual output of OIDs.
2772 [Steve Henson, reported by Dan Kaminsky]
2774 *) Delete MD2 from algorithm tables. This follows the recommendation in
2775 several standards that it is not used in new applications due to
2776 several cryptographic weaknesses. For binary compatibility reasons
2777 the MD2 API is still compiled in by default.
2780 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2784 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2785 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2787 [Guenter <lists@gknw.net>]
2789 *) Fix the server certificate chain building code to use X509_verify_cert(),
2790 it used to have an ad-hoc builder which was unable to cope with anything
2791 other than a simple chain.
2792 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2794 *) Don't check self signed certificate signatures in X509_verify_cert()
2795 by default (a flag can override this): it just wastes time without
2796 adding any security. As a useful side effect self signed root CAs
2797 with non-FIPS digests are now usable in FIPS mode.
2800 *) In dtls1_process_out_of_seq_message() the check if the current message
2801 is already buffered was missing. For every new message was memory
2802 allocated, allowing an attacker to perform an denial of service attack
2803 with sending out of seq handshake messages until there is no memory
2804 left. Additionally every future messege was buffered, even if the
2805 sequence number made no sense and would be part of another handshake.
2806 So only messages with sequence numbers less than 10 in advance will be
2807 buffered. (CVE-2009-1378)
2808 [Robin Seggelmann, discovered by Daniel Mentz]
2810 *) Records are buffered if they arrive with a future epoch to be
2811 processed after finishing the corresponding handshake. There is
2812 currently no limitation to this buffer allowing an attacker to perform
2813 a DOS attack with sending records with future epochs until there is no
2814 memory left. This patch adds the pqueue_size() function to determine
2815 the size of a buffer and limits the record buffer to 100 entries.
2817 [Robin Seggelmann, discovered by Daniel Mentz]
2819 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2820 parent structure is freed. (CVE-2009-1379)
2823 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2824 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2827 [Ilya O. <vrghost@gmail.com>]
2829 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2831 *) Disable renegotiation completely - this fixes a severe security
2832 problem (CVE-2009-3555) at the cost of breaking all
2833 renegotiation. Renegotiation can be re-enabled by setting
2834 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2835 run-time. This is really not recommended unless you know what
2839 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2841 *) Don't set val to NULL when freeing up structures, it is freed up by
2842 underlying code. If sizeof(void *) > sizeof(long) this can result in
2843 zeroing past the valid field. (CVE-2009-0789)
2844 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2846 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2847 checked correctly. This would allow some invalid signed attributes to
2848 appear to verify correctly. (CVE-2009-0591)
2849 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2851 *) Reject UniversalString and BMPString types with invalid lengths. This
2852 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2853 a legal length. (CVE-2009-0590)
2856 *) Set S/MIME signing as the default purpose rather than setting it
2857 unconditionally. This allows applications to override it at the store
2861 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2862 to handle some structures.
2865 *) Improve efficiency of mem_gets: don't search whole buffer each time
2867 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2869 *) New -hex option for openssl rand.
2872 *) Print out UTF8String and NumericString when parsing ASN1.
2875 *) Support NumericString type for name components.
2878 *) Allow CC in the environment to override the automatically chosen
2879 compiler. Note that nothing is done to ensure flags work with the
2883 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2885 *) Properly check EVP_VerifyFinal() and similar return values
2887 [Ben Laurie, Bodo Moeller, Google Security Team]
2889 *) Enable TLS extensions by default.
2892 *) Allow the CHIL engine to be loaded, whether the application is
2893 multithreaded or not. (This does not release the developer from the
2894 obligation to set up the dynamic locking callbacks.)
2895 [Sander Temme <sander@temme.net>]
2897 *) Use correct exit code if there is an error in dgst command.
2898 [Steve Henson; problem pointed out by Roland Dirlewanger]
2900 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2901 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2904 *) Add experimental JPAKE support, including demo authentication in
2905 s_client and s_server.
2908 *) Set the comparison function in v3_addr_canonize().
2909 [Rob Austein <sra@hactrn.net>]
2911 *) Add support for XMPP STARTTLS in s_client.
2912 [Philip Paeps <philip@freebsd.org>]
2914 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2915 to ensure that even with this option, only ciphersuites in the
2916 server's preference list will be accepted. (Note that the option
2917 applies only when resuming a session, so the earlier behavior was
2918 just about the algorithm choice for symmetric cryptography.)
2921 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2923 *) Fix NULL pointer dereference if a DTLS server received
2924 ChangeCipherSpec as first record (CVE-2009-1386).
2927 *) Fix a state transition in s3_srvr.c and d1_srvr.c
2928 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2931 *) The fix in 0.9.8c that supposedly got rid of unsafe
2932 double-checked locking was incomplete for RSA blinding,
2933 addressing just one layer of what turns out to have been
2934 doubly unsafe triple-checked locking.
2936 So now fix this for real by retiring the MONT_HELPER macro
2937 in crypto/rsa/rsa_eay.c.
2939 [Bodo Moeller; problem pointed out by Marius Schilder]
2941 *) Various precautionary measures:
2943 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2945 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2946 (NB: This would require knowledge of the secret session ticket key
2947 to exploit, in which case you'd be SOL either way.)
2949 - Change bn_nist.c so that it will properly handle input BIGNUMs
2950 outside the expected range.
2952 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2955 [Neel Mehta, Bodo Moeller]
2957 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2958 the load fails. Useful for distros.
2959 [Ben Laurie and the FreeBSD team]
2961 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2964 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2967 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2969 This work was sponsored by Logica.
2972 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2973 keystores. Support for SSL/TLS client authentication too.
2974 Not compiled unless enable-capieng specified to Configure.
2976 This work was sponsored by Logica.
2979 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2980 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2981 attribute creation routines such as certifcate requests and PKCS#12
2985 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2987 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2988 handshake which could lead to a cilent crash as found using the
2989 Codenomicon TLS test suite (CVE-2008-1672)
2990 [Steve Henson, Mark Cox]
2992 *) Fix double free in TLS server name extensions which could lead to
2993 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2996 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2998 Clear the error queue to ensure that error entries left from
2999 older function calls do not interfere with the correct operation.
3000 [Lutz Jaenicke, Erik de Castro Lopo]
3002 *) Remove root CA certificates of commercial CAs:
3004 The OpenSSL project does not recommend any specific CA and does not
3005 have any policy with respect to including or excluding any CA.
3006 Therefore it does not make any sense to ship an arbitrary selection
3007 of root CA certificates with the OpenSSL software.
3010 *) RSA OAEP patches to fix two separate invalid memory reads.
3011 The first one involves inputs when 'lzero' is greater than
3012 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
3013 before the beginning of from). The second one involves inputs where
3014 the 'db' section contains nothing but zeroes (there is a one-byte
3015 invalid read after the end of 'db').
3016 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3018 *) Partial backport from 0.9.9-dev:
3020 Introduce bn_mul_mont (dedicated Montgomery multiplication
3021 procedure) as a candidate for BIGNUM assembler implementation.
3022 While 0.9.9-dev uses assembler for various architectures, only
3023 x86_64 is available by default here in the 0.9.8 branch, and
3024 32-bit x86 is available through a compile-time setting.
3026 To try the 32-bit x86 assembler implementation, use Configure
3027 option "enable-montasm" (which exists only for this backport).
3029 As "enable-montasm" for 32-bit x86 disclaims code stability
3030 anyway, in this constellation we activate additional code
3031 backported from 0.9.9-dev for further performance improvements,
3032 namely BN_from_montgomery_word. (To enable this otherwise,
3033 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
3035 [Andy Polyakov (backport partially by Bodo Moeller)]
3037 *) Add TLS session ticket callback. This allows an application to set
3038 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
3039 values. This is useful for key rollover for example where several key
3040 sets may exist with different names.
3043 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
3044 This was broken until now in 0.9.8 releases, such that the only way
3045 a registered ENGINE could be used (assuming it initialises
3046 successfully on the host) was to explicitly set it as the default
3047 for the relevant algorithms. This is in contradiction with 0.9.7
3048 behaviour and the documentation. With this fix, when an ENGINE is
3049 registered into a given algorithm's table of implementations, the
3050 'uptodate' flag is reset so that auto-discovery will be used next
3051 time a new context for that algorithm attempts to select an
3053 [Ian Lister (tweaked by Geoff Thorpe)]
3055 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
3056 implemention in the following ways:
3058 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
3061 Lack of BER streaming support means one pass streaming processing is
3062 only supported if data is detached: setting the streaming flag is
3063 ignored for embedded content.
3065 CMS support is disabled by default and must be explicitly enabled
3066 with the enable-cms configuration option.
3069 *) Update the GMP engine glue to do direct copies between BIGNUM and
3070 mpz_t when openssl and GMP use the same limb size. Otherwise the
3071 existing "conversion via a text string export" trick is still used.
3072 [Paul Sheer <paulsheer@gmail.com>]
3074 *) Zlib compression BIO. This is a filter BIO which compressed and
3075 uncompresses any data passed through it.
3078 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
3079 RFC3394 compatible AES key wrapping.
3082 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3083 sets string data without copying. X509_ALGOR_set0() and
3084 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3085 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3086 from an X509_ATTRIBUTE structure optionally checking it occurs only
3087 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3091 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3092 to get the expected BN_FLG_CONSTTIME behavior.
3093 [Bodo Moeller (Google)]
3097 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3098 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3099 - added some more tests to do_tests.pl
3100 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3101 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3102 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3103 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3104 - various changes to netware.pl to enable gcc-cross builds on Win32
3106 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3107 - various changes to fix missing prototype warnings
3108 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3109 - added AES, WHIRLPOOL and CPUID assembler code to build files
3110 - added missing AES assembler make rules to mk1mf.pl
3111 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3112 [Guenter Knauf <eflash@gmx.net>]
3114 *) Implement certificate status request TLS extension defined in RFC3546.
3115 A client can set the appropriate parameters and receive the encoded
3116 OCSP response via a callback. A server can query the supplied parameters
3117 and set the encoded OCSP response in the callback. Add simplified examples
3118 to s_client and s_server.
3121 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3123 *) Fix various bugs:
3124 + Binary incompatibility of ssl_ctx_st structure
3125 + DTLS interoperation with non-compliant servers
3126 + Don't call get_session_cb() without proposed session
3127 + Fix ia64 assembler code
3128 [Andy Polyakov, Steve Henson]
3130 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3132 *) DTLS Handshake overhaul. There were longstanding issues with
3133 OpenSSL DTLS implementation, which were making it impossible for
3134 RFC 4347 compliant client to communicate with OpenSSL server.
3135 Unfortunately just fixing these incompatibilities would "cut off"
3136 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3137 server keeps tolerating non RFC compliant syntax. The opposite is
3138 not true, 0.9.8f client can not communicate with earlier server.
3139 This update even addresses CVE-2007-4995.
3142 *) Changes to avoid need for function casts in OpenSSL: some compilers
3143 (gcc 4.2 and later) reject their use.
3144 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3147 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3148 RFC4507bis. The encrypted ticket format is an encrypted encoded
3149 SSL_SESSION structure, that way new session features are automatically
3152 If a client application caches session in an SSL_SESSION structure
3153 support is transparent because tickets are now stored in the encoded
3156 The SSL_CTX structure automatically generates keys for ticket
3157 protection in servers so again support should be possible
3158 with no application modification.
3160 If a client or server wishes to disable RFC4507 support then the option
3161 SSL_OP_NO_TICKET can be set.
3163 Add a TLS extension debugging callback to allow the contents of any client
3164 or server extensions to be examined.
3166 This work was sponsored by Google.
3169 *) Add initial support for TLS extensions, specifically for the server_name
3170 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3171 have new members for a host name. The SSL data structure has an
3172 additional member SSL_CTX *initial_ctx so that new sessions can be
3173 stored in that context to allow for session resumption, even after the
3174 SSL has been switched to a new SSL_CTX in reaction to a client's
3175 server_name extension.
3177 New functions (subject to change):
3179 SSL_get_servername()
3180 SSL_get_servername_type()
3183 New CTRL codes and macros (subject to change):
3185 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3186 - SSL_CTX_set_tlsext_servername_callback()
3187 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3188 - SSL_CTX_set_tlsext_servername_arg()
3189 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3191 openssl s_client has a new '-servername ...' option.
3193 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3194 '-key2 ...', '-servername_fatal' (subject to change). This allows
3195 testing the HostName extension for a specific single host name ('-cert'
3196 and '-key' remain fallbacks for handshakes without HostName
3197 negotiation). If the unrecognized_name alert has to be sent, this by
3198 default is a warning; it becomes fatal with the '-servername_fatal'
3201 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3203 *) Add AES and SSE2 assembly language support to VC++ build.
3206 *) Mitigate attack on final subtraction in Montgomery reduction.
3209 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3210 (which previously caused an internal error).
3213 *) Squeeze another 10% out of IGE mode when in != out.
3216 *) AES IGE mode speedup.
3217 [Dean Gaudet (Google)]
3219 *) Add the Korean symmetric 128-bit cipher SEED (see
3220 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3221 add SEED ciphersuites from RFC 4162:
3223 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3224 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3225 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3226 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3228 To minimize changes between patchlevels in the OpenSSL 0.9.8
3229 series, SEED remains excluded from compilation unless OpenSSL
3230 is configured with 'enable-seed'.
3231 [KISA, Bodo Moeller]
3233 *) Mitigate branch prediction attacks, which can be practical if a
3234 single processor is shared, allowing a spy process to extract
3235 information. For detailed background information, see
3236 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3237 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3238 and Necessary Software Countermeasures"). The core of the change
3239 are new versions BN_div_no_branch() and
3240 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3241 respectively, which are slower, but avoid the security-relevant
3242 conditional branches. These are automatically called by BN_div()
3243 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3244 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3245 remove a conditional branch.
3247 BN_FLG_CONSTTIME is the new name for the previous
3248 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3249 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3250 in the exponent causes BN_mod_exp_mont() to use the alternative
3251 implementation in BN_mod_exp_mont_consttime().) The old name
3252 remains as a deprecated alias.
3254 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3255 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3256 constant-time implementations for more than just exponentiation.
3257 Here too the old name is kept as a deprecated alias.
3259 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3260 the BN_BLINDING structure gets an independent copy of the
3261 modulus. This means that the previous "BIGNUM *m" argument to
3262 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3263 essentially becomes "const BIGNUM *m", although we can't actually
3264 change this in the header file before 0.9.9. It allows
3265 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3266 enable BN_FLG_CONSTTIME.
3268 [Matthew D Wood (Intel Corp)]
3270 *) In the SSL/TLS server implementation, be strict about session ID
3271 context matching (which matters if an application uses a single
3272 external cache for different purposes). Previously,
3273 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3274 set. This did ensure strict client verification, but meant that,
3275 with applications using a single external cache for quite
3276 different requirements, clients could circumvent ciphersuite
3277 restrictions for a given session ID context by starting a session
3278 in a different context.
3281 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3282 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3283 authentication-only ciphersuites.
3286 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3287 not complete and could lead to a possible single byte overflow
3288 (CVE-2007-5135) [Ben Laurie]
3290 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3292 *) Since AES128 and AES256 (and similarly Camellia128 and
3293 Camellia256) share a single mask bit in the logic of
3294 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3295 kludge to work properly if AES128 is available and AES256 isn't
3296 (or if Camellia128 is available and Camellia256 isn't).
3299 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3300 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3301 When a point or a seed is encoded in a BIT STRING, we need to
3302 prevent the removal of trailing zero bits to get the proper DER
3303 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3304 of a NamedBitList, for which trailing 0 bits need to be removed.)
3307 *) Have SSL/TLS server implementation tolerate "mismatched" record
3308 protocol version while receiving ClientHello even if the
3309 ClientHello is fragmented. (The server can't insist on the
3310 particular protocol version it has chosen before the ServerHello
3311 message has informed the client about his choice.)
3314 *) Add RFC 3779 support.
3315 [Rob Austein for ARIN, Ben Laurie]
3317 *) Load error codes if they are not already present instead of using a
3318 static variable. This allows them to be cleanly unloaded and reloaded.
3319 Improve header file function name parsing.
3322 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3323 or CAPABILITY handshake as required by RFCs.
3326 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3328 *) Introduce limits to prevent malicious keys being able to
3329 cause a denial of service. (CVE-2006-2940)
3330 [Steve Henson, Bodo Moeller]
3332 *) Fix ASN.1 parsing of certain invalid structures that can result
3333 in a denial of service. (CVE-2006-2937) [Steve Henson]
3335 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3336 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3338 *) Fix SSL client code which could crash if connecting to a
3339 malicious SSLv2 server. (CVE-2006-4343)
3340 [Tavis Ormandy and Will Drewry, Google Security Team]
3342 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3343 match only those. Before that, "AES256-SHA" would be interpreted
3344 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3345 the same strength classification in 0.9.7h) as we currently only
3346 have a single AES bit in the ciphersuite description bitmap.
3347 That change, however, also applied to ciphersuite strings such as
3348 "RC4-MD5" that intentionally matched multiple ciphersuites --
3349 namely, SSL 2.0 ciphersuites in addition to the more common ones
3350 from SSL 3.0/TLS 1.0.
3352 So we change the selection algorithm again: Naming an explicit
3353 ciphersuite selects this one ciphersuite, and any other similar
3354 ciphersuite (same bitmap) from *other* protocol versions.
3355 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3356 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3358 Since SSL 2.0 does not have any ciphersuites for which the
3359 128/256 bit distinction would be relevant, this works for now.
3360 The proper fix will be to use different bits for AES128 and
3361 AES256, which would have avoided the problems from the beginning;
3362 however, bits are scarce, so we can only do this in a new release
3363 (not just a patchlevel) when we can change the SSL_CIPHER
3364 definition to split the single 'unsigned long mask' bitmap into
3365 multiple values to extend the available space.
3369 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3371 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3372 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3374 *) Add AES IGE and biIGE modes.
3377 *) Change the Unix randomness entropy gathering to use poll() when
3378 possible instead of select(), since the latter has some
3379 undesirable limitations.
3380 [Darryl Miles via Richard Levitte and Bodo Moeller]
3382 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3383 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3384 cannot be implicitly activated as part of, e.g., the "AES" alias.
3385 However, please upgrade to OpenSSL 0.9.9[-dev] for
3386 non-experimental use of the ECC ciphersuites to get TLS extension
3387 support, which is required for curve and point format negotiation
3388 to avoid potential handshake problems.
3391 *) Disable rogue ciphersuites:
3393 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3394 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3395 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3397 The latter two were purportedly from
3398 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3401 Also deactivate the remaining ciphersuites from
3402 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3403 unofficial, and the ID has long expired.
3406 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3407 dual-core machines) and other potential thread-safety issues.
3410 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3411 versions), which is now available for royalty-free use
3412 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3413 Also, add Camellia TLS ciphersuites from RFC 4132.
3415 To minimize changes between patchlevels in the OpenSSL 0.9.8
3416 series, Camellia remains excluded from compilation unless OpenSSL
3417 is configured with 'enable-camellia'.
3420 *) Disable the padding bug check when compression is in use. The padding
3421 bug check assumes the first packet is of even length, this is not
3422 necessarily true if compresssion is enabled and can result in false
3423 positives causing handshake failure. The actual bug test is ancient
3424 code so it is hoped that implementations will either have fixed it by
3425 now or any which still have the bug do not support compression.
3428 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3430 *) When applying a cipher rule check to see if string match is an explicit
3431 cipher suite and only match that one cipher suite if it is.
3434 *) Link in manifests for VC++ if needed.
3435 [Austin Ziegler <halostatue@gmail.com>]
3437 *) Update support for ECC-based TLS ciphersuites according to
3438 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3439 TLS extensions, which are supported starting with the 0.9.9
3440 branch, not in the OpenSSL 0.9.8 branch).
3443 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3444 opaque EVP_CIPHER_CTX handling.
3447 *) Fixes and enhancements to zlib compression code. We now only use
3448 "zlib1.dll" and use the default __cdecl calling convention on Win32
3449 to conform with the standards mentioned here:
3450 http://www.zlib.net/DLL_FAQ.txt
3451 Static zlib linking now works on Windows and the new --with-zlib-include
3452 --with-zlib-lib options to Configure can be used to supply the location
3453 of the headers and library. Gracefully handle case where zlib library
3457 *) Several fixes and enhancements to the OID generation code. The old code
3458 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
3459 handle numbers larger than ULONG_MAX, truncated printing and had a
3460 non standard OBJ_obj2txt() behaviour.
3463 *) Add support for building of engines under engine/ as shared libraries
3464 under VC++ build system.
3467 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
3468 Hopefully, we will not see any false combination of paths any more.
3471 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
3473 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3474 (part of SSL_OP_ALL). This option used to disable the
3475 countermeasure against man-in-the-middle protocol-version
3476 rollback in the SSL 2.0 server implementation, which is a bad
3477 idea. (CVE-2005-2969)
3479 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3480 for Information Security, National Institute of Advanced Industrial
3481 Science and Technology [AIST], Japan)]
3483 *) Add two function to clear and return the verify parameter flags.
3486 *) Keep cipherlists sorted in the source instead of sorting them at
3487 runtime, thus removing the need for a lock.
3490 *) Avoid some small subgroup attacks in Diffie-Hellman.
3491 [Nick Mathewson and Ben Laurie]
3493 *) Add functions for well-known primes.
3496 *) Extended Windows CE support.
3497 [Satoshi Nakamura and Andy Polyakov]
3499 *) Initialize SSL_METHOD structures at compile time instead of during
3500 runtime, thus removing the need for a lock.
3503 *) Make PKCS7_decrypt() work even if no certificate is supplied by
3504 attempting to decrypt each encrypted key in turn. Add support to
3508 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
3510 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
3513 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
3516 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
3517 key into the same file any more.
3520 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
3523 *) Add -utf8 command line and config file option to 'ca'.
3524 [Stefan <stf@udoma.org]
3526 *) Removed the macro des_crypt(), as it seems to conflict with some
3527 libraries. Use DES_crypt().
3530 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
3531 involves renaming the source and generated shared-libs for
3532 both. The engines will accept the corrected or legacy ids
3533 ('ncipher' and '4758_cca' respectively) when binding. NB,
3534 this only applies when building 'shared'.
3535 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
3537 *) Add attribute functions to EVP_PKEY structure. Modify
3538 PKCS12_create() to recognize a CSP name attribute and
3539 use it. Make -CSP option work again in pkcs12 utility.
3542 *) Add new functionality to the bn blinding code:
3543 - automatic re-creation of the BN_BLINDING parameters after
3544 a fixed number of uses (currently 32)
3545 - add new function for parameter creation
3546 - introduce flags to control the update behaviour of the
3547 BN_BLINDING parameters
3548 - hide BN_BLINDING structure
3549 Add a second BN_BLINDING slot to the RSA structure to improve
3550 performance when a single RSA object is shared among several
3554 *) Add support for DTLS.
3555 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
3557 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
3558 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
3561 *) Remove buggy and incomplete DH cert support from
3562 ssl/ssl_rsa.c and ssl/s3_both.c
3565 *) Use SHA-1 instead of MD5 as the default digest algorithm for
3566 the apps/openssl applications.
3569 *) Compile clean with "-Wall -Wmissing-prototypes
3570 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
3571 DEBUG_SAFESTACK must also be set.
3574 *) Change ./Configure so that certain algorithms can be disabled by default.
3575 The new counterpiece to "no-xxx" is "enable-xxx".
3577 The patented RC5 and MDC2 algorithms will now be disabled unless
3578 "enable-rc5" and "enable-mdc2", respectively, are specified.
3580 (IDEA remains enabled despite being patented. This is because IDEA
3581 is frequently required for interoperability, and there is no license
3582 fee for non-commercial use. As before, "no-idea" can be used to
3583 avoid this algorithm.)
3587 *) Add processing of proxy certificates (see RFC 3820). This work was
3588 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3589 EGEE (Enabling Grids for E-science in Europe).
3592 *) RC4 performance overhaul on modern architectures/implementations, such
3593 as Intel P4, IA-64 and AMD64.
3596 *) New utility extract-section.pl. This can be used specify an alternative
3597 section number in a pod file instead of having to treat each file as
3598 a separate case in Makefile. This can be done by adding two lines to the
3601 =for comment openssl_section:XXX
3603 The blank line is mandatory.
3607 *) New arguments -certform, -keyform and -pass for s_client and s_server
3608 to allow alternative format key and certificate files and passphrase
3612 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3613 update associated structures and add various utility functions.
3615 Add new policy related verify parameters, include policy checking in
3616 standard verify code. Enhance 'smime' application with extra parameters
3617 to support policy checking and print out.
3620 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3621 Nehemiah processors. These extensions support AES encryption in hardware
3622 as well as RNG (though RNG support is currently disabled).
3623 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3625 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3628 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3629 [Andy Polyakov and a number of other people]
3631 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3632 implementation contributed by IBM.
3633 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3635 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3636 exponent rather than 'unsigned long'. There is a corresponding change to
3637 the new 'rsa_keygen' element of the RSA_METHOD structure.
3638 [Jelte Jansen, Geoff Thorpe]
3640 *) Functionality for creating the initial serial number file is now
3641 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3643 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3644 number file to 1, which is bound to cause problems. To avoid
3645 the problems while respecting compatibility between different 0.9.7
3646 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3647 CA.pl for serial number initialization. With the new release 0.9.8,
3648 we can fix the problem directly in the 'ca' utility.)
3651 *) Reduced header interdepencies by declaring more opaque objects in
3652 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3653 give fewer recursive includes, which could break lazy source code - so
3654 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3655 developers should define this symbol when building and using openssl to
3656 ensure they track the recommended behaviour, interfaces, [etc], but
3657 backwards-compatible behaviour prevails when this isn't defined.
3660 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3663 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3664 This will generate a random key of the appropriate length based on the
3665 cipher context. The EVP_CIPHER can provide its own random key generation
3666 routine to support keys of a specific form. This is used in the des and
3667 3des routines to generate a key of the correct parity. Update S/MIME
3668 code to use new functions and hence generate correct parity DES keys.
3669 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3670 valid (weak or incorrect parity).
3673 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3674 as looking them up. This is useful when the verified structure may contain
3675 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3676 present unless the new PKCS7_NO_CRL flag is asserted.
3679 *) Extend ASN1 oid configuration module. It now additionally accepts the
3682 shortName = some long name, 1.2.3.4
3685 *) Reimplemented the BN_CTX implementation. There is now no more static
3686 limitation on the number of variables it can handle nor the depth of the
3687 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3688 information can now expand as required, and rather than having a single
3689 static array of bignums, BN_CTX now uses a linked-list of such arrays
3690 allowing it to expand on demand whilst maintaining the usefulness of
3691 BN_CTX's "bundling".
3694 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3695 to allow all RSA operations to function using a single BN_CTX.
3698 *) Preliminary support for certificate policy evaluation and checking. This
3699 is initially intended to pass the tests outlined in "Conformance Testing
3700 of Relying Party Client Certificate Path Processing Logic" v1.07.
3703 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3704 remained unused and not that useful. A variety of other little bignum
3705 tweaks and fixes have also been made continuing on from the audit (see
3709 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3710 associated ASN1, EVP and SSL functions and old ASN1 macros.
3713 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3714 and this should never fail. So the return value from the use of
3715 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3716 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3719 *) BN_CTX_get() should return zero-valued bignums, providing the same
3720 initialised value as BN_new().
3721 [Geoff Thorpe, suggested by Ulf Möller]
3723 *) Support for inhibitAnyPolicy certificate extension.
3726 *) An audit of the BIGNUM code is underway, for which debugging code is
3727 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3728 is considered valid when processing BIGNUMs, and causes execution to
3729 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3730 further steps are taken to deliberately pollute unused data in BIGNUM
3731 structures to try and expose faulty code further on. For now, openssl will
3732 (in its default mode of operation) continue to tolerate the inconsistent
3733 forms that it has tolerated in the past, but authors and packagers should
3734 consider trying openssl and their own applications when compiled with
3735 these debugging symbols defined. It will help highlight potential bugs in
3736 their own code, and will improve the test coverage for OpenSSL itself. At
3737 some point, these tighter rules will become openssl's default to improve
3738 maintainability, though the assert()s and other overheads will remain only
3739 in debugging configurations. See bn.h for more details.
3740 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3742 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3743 that can only be obtained through BN_CTX_new() (which implicitly
3744 initialises it). The presence of this function only made it possible
3745 to overwrite an existing structure (and cause memory leaks).
3748 *) Because of the callback-based approach for implementing LHASH as a
3749 template type, lh_insert() adds opaque objects to hash-tables and
3750 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3751 to clean up those corresponding objects before destroying the hash table
3752 (and losing the object pointers). So some over-zealous constifications in
3753 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3754 objects as "const" and the lh_doall[_arg] callback wrappers are not
3755 prototyped to have "const" restrictions on the object pointers they are
3756 given (and so aren't required to cast them away any more).
3759 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3760 (speed) prefers to use its own implementation. The two implementations
3761 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3762 its object type properly exposed (MS_TM) instead of casting to/from "char
3763 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3764 aren't necessarily the greatest nomenclatures - but this is what was used
3765 internally to the implementation so I've used that for now.
3768 *) Ensure that deprecated functions do not get compiled when
3769 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3770 the self-tests were still using deprecated key-generation functions so
3771 these have been updated also.
3774 *) Reorganise PKCS#7 code to separate the digest location functionality
3775 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
3776 New function PKCS7_set_digest() to set the digest type for PKCS#7
3777 digestedData type. Add additional code to correctly generate the
3778 digestedData type and add support for this type in PKCS7 initialization
3782 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3783 structure of type "other".
3786 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3787 sure the loop does correctly stop and breaking ("division by zero")
3788 modulus operations are not performed. The (pre-generated) prime
3789 table crypto/bn/bn_prime.h was already correct, but it could not be
3790 re-generated on some platforms because of the "division by zero"
3791 situation in the script.
3792 [Ralf S. Engelschall]
3794 *) Update support for ECC-based TLS ciphersuites according to
3795 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3796 SHA-1 now is only used for "small" curves (where the
3797 representation of a field element takes up to 24 bytes); for
3798 larger curves, the field element resulting from ECDH is directly
3799 used as premaster secret.
3800 [Douglas Stebila (Sun Microsystems Laboratories)]
3802 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3803 curve secp160r1 to the tests.
3804 [Douglas Stebila (Sun Microsystems Laboratories)]
3806 *) Add the possibility to load symbols globally with DSO.
3807 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3809 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3810 control of the error stack.
3813 *) Add support for STORE in ENGINE.
3816 *) Add the STORE type. The intention is to provide a common interface
3817 to certificate and key stores, be they simple file-based stores, or
3818 HSM-type store, or LDAP stores, or...
3819 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3822 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3823 pass a list of arguments to any function as well as provide a way
3824 for a function to pass data back to the caller.
3827 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3828 works like BUF_strdup() but can be used to duplicate a portion of
3829 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3833 *) Add the function sk_find_ex() which works like sk_find(), but will
3834 return an index to an element even if an exact match couldn't be
3835 found. The index is guaranteed to point at the element where the
3836 searched-for key would be inserted to preserve sorting order.
3839 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3840 takes an extra flags argument for optional functionality. Currently,
3841 the following flags are defined:
3843 OBJ_BSEARCH_VALUE_ON_NOMATCH
3844 This one gets OBJ_bsearch_ex() to return a pointer to the first
3845 element where the comparing function returns a negative or zero
3848 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3849 This one gets OBJ_bsearch_ex() to return a pointer to the first
3850 element where the comparing function returns zero. This is useful
3851 if there are more than one element where the comparing function
3855 *) Make it possible to create self-signed certificates with 'openssl ca'
3856 in such a way that the self-signed certificate becomes part of the
3857 CA database and uses the same mechanisms for serial number generation
3858 as all other certificate signing. The new flag '-selfsign' enables
3859 this functionality. Adapt CA.sh and CA.pl.in.
3862 *) Add functionality to check the public key of a certificate request
3863 against a given private. This is useful to check that a certificate
3864 request can be signed by that key (self-signing).
3867 *) Make it possible to have multiple active certificates with the same
3868 subject in the CA index file. This is done only if the keyword
3869 'unique_subject' is set to 'no' in the main CA section (default
3870 if 'CA_default') of the configuration file. The value is saved
3871 with the database itself in a separate index attribute file,
3872 named like the index file with '.attr' appended to the name.
3875 *) Generate muti valued AVAs using '+' notation in config files for
3879 *) Support for nameConstraints certificate extension.
3882 *) Support for policyConstraints certificate extension.
3885 *) Support for policyMappings certificate extension.
3888 *) Make sure the default DSA_METHOD implementation only uses its
3889 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3890 and change its own handlers to be NULL so as to remove unnecessary
3891 indirection. This lets alternative implementations fallback to the
3892 default implementation more easily.
3895 *) Support for directoryName in GeneralName related extensions
3899 *) Make it possible to link applications using Makefile.shared.
3900 Make that possible even when linking against static libraries!
3903 *) Support for single pass processing for S/MIME signing. This now
3904 means that S/MIME signing can be done from a pipe, in addition
3905 cleartext signing (multipart/signed type) is effectively streaming
3906 and the signed data does not need to be all held in memory.
3908 This is done with a new flag PKCS7_STREAM. When this flag is set
3909 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3910 is done after the data is output (and digests calculated) in
3911 SMIME_write_PKCS7().
3914 *) Add full support for -rpath/-R, both in shared libraries and
3915 applications, at least on the platforms where it's known how
3919 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3920 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3921 will now compute a table of multiples of the generator that
3922 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3923 faster (notably in the case of a single point multiplication,
3924 scalar * generator).
3925 [Nils Larsch, Bodo Moeller]
3927 *) IPv6 support for certificate extensions. The various extensions
3928 which use the IP:a.b.c.d can now take IPv6 addresses using the
3929 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3933 *) Added an ENGINE that implements RSA by performing private key
3934 exponentiations with the GMP library. The conversions to and from
3935 GMP's mpz_t format aren't optimised nor are any montgomery forms
3936 cached, and on x86 it appears OpenSSL's own performance has caught up.
3937 However there are likely to be other architectures where GMP could
3938 provide a boost. This ENGINE is not built in by default, but it can be
3939 specified at Configure time and should be accompanied by the necessary
3940 linker additions, eg;
3941 ./config -DOPENSSL_USE_GMP -lgmp
3944 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3945 testing availability of engines with "-t" - the old behaviour is
3946 produced by increasing the feature's verbosity with "-tt".
3949 *) ECDSA routines: under certain error conditions uninitialized BN objects
3950 could be freed. Solution: make sure initialization is performed early
3951 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3955 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3956 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3957 software implementations. For DSA and DH, parameter generation can
3958 also be overriden by providing the appropriate method callbacks.
3961 *) Change the "progress" mechanism used in key-generation and
3962 primality testing to functions that take a new BN_GENCB pointer in
3963 place of callback/argument pairs. The new API functions have "_ex"
3964 postfixes and the older functions are reimplemented as wrappers for
3965 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3966 declarations of the old functions to help (graceful) attempts to
3967 migrate to the new functions. Also, the new key-generation API
3968 functions operate on a caller-supplied key-structure and return
3969 success/failure rather than returning a key or NULL - this is to
3970 help make "keygen" another member function of RSA_METHOD etc.
3972 Example for using the new callback interface:
3974 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3978 BN_GENCB_set(&my_cb, my_callback, my_arg);
3980 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3981 /* For the meaning of a, b in calls to my_callback(), see the
3982 * documentation of the function that calls the callback.
3983 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3984 * my_callback should return 1 if it wants BN_is_prime_ex()
3985 * to continue, or 0 to stop.
3990 *) Change the ZLIB compression method to be stateful, and make it
3991 available to TLS with the number defined in
3992 draft-ietf-tls-compression-04.txt.
3995 *) Add the ASN.1 structures and functions for CertificatePair, which
3996 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3998 CertificatePair ::= SEQUENCE {
3999 forward [0] Certificate OPTIONAL,
4000 reverse [1] Certificate OPTIONAL,
4001 -- at least one of the pair shall be present -- }
4003 Also implement the PEM functions to read and write certificate
4004 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
4006 This needed to be defined, mostly for the sake of the LDAP
4007 attribute crossCertificatePair, but may prove useful elsewhere as
4011 *) Make it possible to inhibit symlinking of shared libraries in
4012 Makefile.shared, for Cygwin's sake.
4015 *) Extend the BIGNUM API by creating a function
4016 void BN_set_negative(BIGNUM *a, int neg);
4017 and a macro that behave like
4018 int BN_is_negative(const BIGNUM *a);
4020 to avoid the need to access 'a->neg' directly in applications.
4023 *) Implement fast modular reduction for pseudo-Mersenne primes
4024 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
4025 EC_GROUP_new_curve_GFp() will now automatically use this
4027 [Nils Larsch <nla@trustcenter.de>]
4029 *) Add new lock type (CRYPTO_LOCK_BN).
4032 *) Change the ENGINE framework to automatically load engines
4033 dynamically from specific directories unless they could be
4034 found to already be built in or loaded. Move all the
4035 current engines except for the cryptodev one to a new
4037 The engines in engines/ are built as shared libraries if
4038 the "shared" options was given to ./Configure or ./config.
4039 Otherwise, they are inserted in libcrypto.a.
4040 /usr/local/ssl/engines is the default directory for dynamic
4041 engines, but that can be overriden at configure time through
4042 the usual use of --prefix and/or --openssldir, and at run
4043 time with the environment variable OPENSSL_ENGINES.
4044 [Geoff Thorpe and Richard Levitte]
4046 *) Add Makefile.shared, a helper makefile to build shared
4047 libraries. Adapt Makefile.org.
4050 *) Add version info to Win32 DLLs.
4051 [Peter 'Luna' Runestig" <peter@runestig.com>]
4053 *) Add new 'medium level' PKCS#12 API. Certificates and keys
4054 can be added using this API to created arbitrary PKCS#12
4055 files while avoiding the low level API.
4057 New options to PKCS12_create(), key or cert can be NULL and
4058 will then be omitted from the output file. The encryption
4059 algorithm NIDs can be set to -1 for no encryption, the mac
4060 iteration count can be set to 0 to omit the mac.
4062 Enhance pkcs12 utility by making the -nokeys and -nocerts
4063 options work when creating a PKCS#12 file. New option -nomac
4064 to omit the mac, NONE can be set for an encryption algorithm.
4065 New code is modified to use the enhanced PKCS12_create()
4066 instead of the low level API.
4069 *) Extend ASN1 encoder to support indefinite length constructed
4070 encoding. This can output sequences tags and octet strings in
4071 this form. Modify pk7_asn1.c to support indefinite length
4072 encoding. This is experimental and needs additional code to
4073 be useful, such as an ASN1 bio and some enhanced streaming
4076 Extend template encode functionality so that tagging is passed
4077 down to the template encoder.
4080 *) Let 'openssl req' fail if an argument to '-newkey' is not
4081 recognized instead of using RSA as a default.
4084 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4085 As these are not official, they are not included in "ALL";
4086 the "ECCdraft" ciphersuite group alias can be used to select them.
4087 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4089 *) Add ECDH engine support.
4090 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4092 *) Add ECDH in new directory crypto/ecdh/.
4093 [Douglas Stebila (Sun Microsystems Laboratories)]
4095 *) Let BN_rand_range() abort with an error after 100 iterations
4096 without success (which indicates a broken PRNG).
4099 *) Change BN_mod_sqrt() so that it verifies that the input value
4100 is really the square of the return value. (Previously,
4101 BN_mod_sqrt would show GIGO behaviour.)
4104 *) Add named elliptic curves over binary fields from X9.62, SECG,
4105 and WAP/WTLS; add OIDs that were still missing.
4107 [Sheueling Chang Shantz and Douglas Stebila
4108 (Sun Microsystems Laboratories)]
4110 *) Extend the EC library for elliptic curves over binary fields
4111 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4114 EC_GF2m_simple_method
4118 EC_GROUP_new_curve_GF2m
4119 EC_GROUP_set_curve_GF2m
4120 EC_GROUP_get_curve_GF2m
4121 EC_POINT_set_affine_coordinates_GF2m
4122 EC_POINT_get_affine_coordinates_GF2m
4123 EC_POINT_set_compressed_coordinates_GF2m
4125 Point compression for binary fields is disabled by default for
4126 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4129 As binary polynomials are represented as BIGNUMs, various members
4130 of the EC_GROUP and EC_POINT data structures can be shared
4131 between the implementations for prime fields and binary fields;
4132 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4133 are essentially identical to their ..._GFp counterparts.
4134 (For simplicity, the '..._GFp' prefix has been dropped from
4135 various internal method names.)
4137 An internal 'field_div' method (similar to 'field_mul' and
4138 'field_sqr') has been added; this is used only for binary fields.
4140 [Sheueling Chang Shantz and Douglas Stebila
4141 (Sun Microsystems Laboratories)]
4143 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4144 through methods ('mul', 'precompute_mult').
4146 The generic implementations (now internally called 'ec_wNAF_mul'
4147 and 'ec_wNAF_precomputed_mult') remain the default if these
4148 methods are undefined.
4150 [Sheueling Chang Shantz and Douglas Stebila
4151 (Sun Microsystems Laboratories)]
4153 *) New function EC_GROUP_get_degree, which is defined through
4154 EC_METHOD. For curves over prime fields, this returns the bit
4155 length of the modulus.
4157 [Sheueling Chang Shantz and Douglas Stebila
4158 (Sun Microsystems Laboratories)]
4160 *) New functions EC_GROUP_dup, EC_POINT_dup.
4161 (These simply call ..._new and ..._copy).
4163 [Sheueling Chang Shantz and Douglas Stebila
4164 (Sun Microsystems Laboratories)]
4166 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4167 Polynomials are represented as BIGNUMs (where the sign bit is not
4168 used) in the following functions [macros]:
4171 BN_GF2m_sub [= BN_GF2m_add]
4172 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4173 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4174 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4176 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4177 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4178 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4179 BN_GF2m_cmp [= BN_ucmp]
4181 (Note that only the 'mod' functions are actually for fields GF(2^m).
4182 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4184 For some functions, an the irreducible polynomial defining a
4185 field can be given as an 'unsigned int[]' with strictly
4186 decreasing elements giving the indices of those bits that are set;
4187 i.e., p[] represents the polynomial
4188 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4190 p[0] > p[1] > ... > p[k] = 0.
4191 This applies to the following functions:
4196 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4197 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4199 BN_GF2m_mod_sqrt_arr
4200 BN_GF2m_mod_solve_quad_arr
4204 Conversion can be performed by the following functions:
4209 bntest.c has additional tests for binary polynomial arithmetic.
4211 Two implementations for BN_GF2m_mod_div() are available.
4212 The default algorithm simply uses BN_GF2m_mod_inv() and
4213 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4214 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4215 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4217 [Sheueling Chang Shantz and Douglas Stebila
4218 (Sun Microsystems Laboratories)]
4220 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4221 functionality is disabled at compile-time.
4222 [Douglas Stebila <douglas.stebila@sun.com>]
4224 *) Change default behaviour of 'openssl asn1parse' so that more
4225 information is visible when viewing, e.g., a certificate:
4227 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4228 mode the content of non-printable OCTET STRINGs is output in a
4229 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4230 avoid the appearance of a printable string.
4231 [Nils Larsch <nla@trustcenter.de>]
4233 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4235 EC_GROUP_set_asn1_flag()
4236 EC_GROUP_get_asn1_flag()
4237 EC_GROUP_set_point_conversion_form()
4238 EC_GROUP_get_point_conversion_form()
4239 These control ASN1 encoding details:
4240 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4241 has been set to OPENSSL_EC_NAMED_CURVE.
4242 - Points are encoded in uncompressed form by default; options for
4243 asn1_for are as for point2oct, namely
4244 POINT_CONVERSION_COMPRESSED
4245 POINT_CONVERSION_UNCOMPRESSED
4246 POINT_CONVERSION_HYBRID
4248 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4251 EC_GROUP_get0_seed()
4252 EC_GROUP_get_seed_len()
4253 This is used only for ASN1 purposes (so far).
4254 [Nils Larsch <nla@trustcenter.de>]
4256 *) Add 'field_type' member to EC_METHOD, which holds the NID
4257 of the appropriate field type OID. The new function
4258 EC_METHOD_get_field_type() returns this value.
4259 [Nils Larsch <nla@trustcenter.de>]
4264 EC_POINT_point2hex()
4265 EC_POINT_hex2point()
4266 providing useful interfaces to EC_POINT_point2oct() and
4267 EC_POINT_oct2point().
4268 [Nils Larsch <nla@trustcenter.de>]
4270 *) Change internals of the EC library so that the functions
4271 EC_GROUP_set_generator()
4272 EC_GROUP_get_generator()
4273 EC_GROUP_get_order()
4274 EC_GROUP_get_cofactor()
4275 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4276 to methods, which would lead to unnecessary code duplication when
4277 adding different types of curves.
4278 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4280 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4281 arithmetic, and such that modified wNAFs are generated
4282 (which avoid length expansion in many cases).
4285 *) Add a function EC_GROUP_check_discriminant() (defined via
4286 EC_METHOD) that verifies that the curve discriminant is non-zero.
4288 Add a function EC_GROUP_check() that makes some sanity tests
4289 on a EC_GROUP, its generator and order. This includes
4290 EC_GROUP_check_discriminant().
4291 [Nils Larsch <nla@trustcenter.de>]
4293 *) Add ECDSA in new directory crypto/ecdsa/.
4295 Add applications 'openssl ecparam' and 'openssl ecdsa'
4296 (these are based on 'openssl dsaparam' and 'openssl dsa').
4298 ECDSA support is also included in various other files across the
4299 library. Most notably,
4300 - 'openssl req' now has a '-newkey ecdsa:file' option;
4301 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4302 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4303 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4304 them suitable for ECDSA where domain parameters must be
4305 extracted before the specific public key;
4306 - ECDSA engine support has been added.
4307 [Nils Larsch <nla@trustcenter.de>]
4309 *) Include some named elliptic curves, and add OIDs from X9.62,
4310 SECG, and WAP/WTLS. Each curve can be obtained from the new
4312 EC_GROUP_new_by_curve_name(),
4313 and the list of available named curves can be obtained with
4314 EC_get_builtin_curves().
4315 Also add a 'curve_name' member to EC_GROUP objects, which can be
4317 EC_GROUP_set_curve_name()
4318 EC_GROUP_get_curve_name()
4319 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4321 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4322 was actually never needed) and in BN_mul(). The removal in BN_mul()
4323 required a small change in bn_mul_part_recursive() and the addition
4324 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4325 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4326 bn_sub_words() and bn_add_words() except they take arrays with
4330 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4332 *) Cleanse PEM buffers before freeing them since they may contain
4334 [Benjamin Bennett <ben@psc.edu>]
4336 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4337 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4338 authentication-only ciphersuites.
4341 *) Since AES128 and AES256 share a single mask bit in the logic of
4342 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4343 kludge to work properly if AES128 is available and AES256 isn't.
4346 *) Expand security boundary to match 1.1.1 module.
4349 *) Remove redundant features: hash file source, editing of test vectors
4350 modify fipsld to use external fips_premain.c signature.
4353 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4354 run algorithm test programs.
4357 *) Make algorithm test programs more tolerant of whitespace.
4360 *) Have SSL/TLS server implementation tolerate "mismatched" record
4361 protocol version while receiving ClientHello even if the
4362 ClientHello is fragmented. (The server can't insist on the
4363 particular protocol version it has chosen before the ServerHello
4364 message has informed the client about his choice.)
4367 *) Load error codes if they are not already present instead of using a
4368 static variable. This allows them to be cleanly unloaded and reloaded.
4371 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4373 *) Introduce limits to prevent malicious keys being able to
4374 cause a denial of service. (CVE-2006-2940)
4375 [Steve Henson, Bodo Moeller]
4377 *) Fix ASN.1 parsing of certain invalid structures that can result
4378 in a denial of service. (CVE-2006-2937) [Steve Henson]
4380 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4381 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4383 *) Fix SSL client code which could crash if connecting to a
4384 malicious SSLv2 server. (CVE-2006-4343)
4385 [Tavis Ormandy and Will Drewry, Google Security Team]
4387 *) Change ciphersuite string processing so that an explicit
4388 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4389 will no longer include "AES128-SHA"), and any other similar
4390 ciphersuite (same bitmap) from *other* protocol versions (so that
4391 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4392 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4393 changes from 0.9.8b and 0.9.8d.
4396 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4398 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4399 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4401 *) Change the Unix randomness entropy gathering to use poll() when
4402 possible instead of select(), since the latter has some
4403 undesirable limitations.
4404 [Darryl Miles via Richard Levitte and Bodo Moeller]
4406 *) Disable rogue ciphersuites:
4408 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4409 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4410 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4412 The latter two were purportedly from
4413 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4416 Also deactive the remaining ciphersuites from
4417 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4418 unofficial, and the ID has long expired.
4421 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4422 dual-core machines) and other potential thread-safety issues.
4425 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4427 *) Adapt fipsld and the build system to link against the validated FIPS
4428 module in FIPS mode.
4431 *) Fixes for VC++ 2005 build under Windows.
4434 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4435 from a Windows bash shell such as MSYS. It is autodetected from the
4436 "config" script when run from a VC++ environment. Modify standard VC++
4437 build to use fipscanister.o from the GNU make build.
4440 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4442 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4443 The value now differs depending on if you build for FIPS or not.
4444 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4445 safely run with a non-FIPSed libcrypto, as it may crash because of
4446 the difference induced by this change.
4449 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4451 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4452 (part of SSL_OP_ALL). This option used to disable the
4453 countermeasure against man-in-the-middle protocol-version
4454 rollback in the SSL 2.0 server implementation, which is a bad
4455 idea. (CVE-2005-2969)
4457 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4458 for Information Security, National Institute of Advanced Industrial
4459 Science and Technology [AIST], Japan)]
4461 *) Minimal support for X9.31 signatures and PSS padding modes. This is
4462 mainly for FIPS compliance and not fully integrated at this stage.
4465 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
4466 the exponentiation using a fixed-length exponent. (Otherwise,
4467 the information leaked through timing could expose the secret key
4468 after many signatures; cf. Bleichenbacher's attack on DSA with
4472 *) Make a new fixed-window mod_exp implementation the default for
4473 RSA, DSA, and DH private-key operations so that the sequence of
4474 squares and multiplies and the memory access pattern are
4475 independent of the particular secret key. This will mitigate
4476 cache-timing and potential related attacks.
4478 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
4479 and this is automatically used by BN_mod_exp_mont() if the new flag
4480 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
4481 will use this BN flag for private exponents unless the flag
4482 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
4483 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
4485 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
4487 *) Change the client implementation for SSLv23_method() and
4488 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
4489 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
4490 (Previously, the SSL 2.0 backwards compatible Client Hello
4491 message format would be used even with SSL_OP_NO_SSLv2.)
4494 *) Add support for smime-type MIME parameter in S/MIME messages which some
4498 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
4499 a threadsafe manner. Modify rsa code to use new function and add calls
4500 to dsa and dh code (which had race conditions before).
4503 *) Include the fixed error library code in the C error file definitions
4504 instead of fixing them up at runtime. This keeps the error code
4505 structures constant.
4508 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
4510 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
4513 *) Fixes for newer kerberos headers. NB: the casts are needed because
4514 the 'length' field is signed on one version and unsigned on another
4515 with no (?) obvious way to tell the difference, without these VC++
4516 complains. Also the "definition" of FAR (blank) is no longer included
4517 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
4518 some needed definitions.
4521 *) Undo Cygwin change.
4524 *) Added support for proxy certificates according to RFC 3820.
4525 Because they may be a security thread to unaware applications,
4526 they must be explicitely allowed in run-time. See
4527 docs/HOWTO/proxy_certificates.txt for further information.
4530 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
4532 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
4533 server and client random values. Previously
4534 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
4535 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
4537 This change has negligible security impact because:
4539 1. Server and client random values still have 24 bytes of pseudo random
4542 2. Server and client random values are sent in the clear in the initial
4545 3. The master secret is derived using the premaster secret (48 bytes in
4546 size for static RSA ciphersuites) as well as client server and random
4549 The OpenSSL team would like to thank the UK NISCC for bringing this issue
4552 [Stephen Henson, reported by UK NISCC]
4554 *) Use Windows randomness collection on Cygwin.
4557 *) Fix hang in EGD/PRNGD query when communication socket is closed
4558 prematurely by EGD/PRNGD.
4559 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4561 *) Prompt for pass phrases when appropriate for PKCS12 input format.
4564 *) Back-port of selected performance improvements from development
4565 branch, as well as improved support for PowerPC platforms.
4568 *) Add lots of checks for memory allocation failure, error codes to indicate
4569 failure and freeing up memory if a failure occurs.
4570 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
4572 *) Add new -passin argument to dgst.
4575 *) Perform some character comparisons of different types in X509_NAME_cmp:
4576 this is needed for some certificates that reencode DNs into UTF8Strings
4577 (in violation of RFC3280) and can't or wont issue name rollover
4581 *) Make an explicit check during certificate validation to see that
4582 the CA setting in each certificate on the chain is correct. As a
4583 side effect always do the following basic checks on extensions,
4584 not just when there's an associated purpose to the check:
4586 - if there is an unhandled critical extension (unless the user
4587 has chosen to ignore this fault)
4588 - if the path length has been exceeded (if one is set at all)
4589 - that certain extensions fit the associated purpose (if one has
4593 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4595 *) Avoid a race condition when CRLs are checked in a multi threaded
4596 environment. This would happen due to the reordering of the revoked
4597 entries during signature checking and serial number lookup. Now the
4598 encoding is cached and the serial number sort performed under a lock.
4599 Add new STACK function sk_is_sorted().
4602 *) Add Delta CRL to the extension code.
4605 *) Various fixes to s3_pkt.c so alerts are sent properly.
4606 [David Holmes <d.holmes@f5.com>]
4608 *) Reduce the chances of duplicate issuer name and serial numbers (in
4609 violation of RFC3280) using the OpenSSL certificate creation utilities.
4610 This is done by creating a random 64 bit value for the initial serial
4611 number when a serial number file is created or when a self signed
4612 certificate is created using 'openssl req -x509'. The initial serial
4613 number file is created using 'openssl x509 -next_serial' in CA.pl
4614 rather than being initialized to 1.
4617 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4619 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4620 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4621 [Joe Orton, Steve Henson]
4623 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4625 [Joe Orton, Steve Henson]
4627 *) Make it possible to have multiple active certificates with the same
4628 subject in the CA index file. This is done only if the keyword
4629 'unique_subject' is set to 'no' in the main CA section (default
4630 if 'CA_default') of the configuration file. The value is saved
4631 with the database itself in a separate index attribute file,
4632 named like the index file with '.attr' appended to the name.
4635 *) X509 verify fixes. Disable broken certificate workarounds when
4636 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4637 keyUsage extension present. Don't accept CRLs with unhandled critical
4638 extensions: since verify currently doesn't process CRL extensions this
4639 rejects a CRL with *any* critical extensions. Add new verify error codes
4643 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4644 A clarification of RFC2560 will require the use of OCTET STRINGs and
4645 some implementations cannot handle the current raw format. Since OpenSSL
4646 copies and compares OCSP nonces as opaque blobs without any attempt at
4647 parsing them this should not create any compatibility issues.
4650 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4651 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4652 this HMAC (and other) operations are several times slower than OpenSSL
4656 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4657 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4659 *) Use the correct content when signing type "other".
4662 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4664 *) Fix various bugs revealed by running the NISCC test suite:
4666 Stop out of bounds reads in the ASN1 code when presented with
4667 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4669 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4671 If verify callback ignores invalid public key errors don't try to check
4672 certificate signature with the NULL public key.
4676 *) New -ignore_err option in ocsp application to stop the server
4677 exiting on the first error in a request.
4680 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4681 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4685 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4686 extra data after the compression methods not only for TLS 1.0
4687 but also for SSL 3.0 (as required by the specification).
4688 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4690 *) Change X509_certificate_type() to mark the key as exported/exportable
4691 when it's 512 *bits* long, not 512 bytes.
4694 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4695 blocks during encryption.
4698 *) Various fixes to base64 BIO and non blocking I/O. On write
4699 flushes were not handled properly if the BIO retried. On read
4700 data was not being buffered properly and had various logic bugs.
4701 This also affects blocking I/O when the data being decoded is a
4705 *) Various S/MIME bugfixes and compatibility changes:
4706 output correct application/pkcs7 MIME type if
4707 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4708 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4709 of files as .eml work). Correctly handle very long lines in MIME
4713 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4715 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4716 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4717 a protocol version number mismatch like a decryption error
4718 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4721 *) Turn on RSA blinding by default in the default implementation
4722 to avoid a timing attack. Applications that don't want it can call
4723 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4724 They would be ill-advised to do so in most cases.
4725 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4727 *) Change RSA blinding code so that it works when the PRNG is not
4728 seeded (in this case, the secret RSA exponent is abused as
4729 an unpredictable seed -- if it is not unpredictable, there
4730 is no point in blinding anyway). Make RSA blinding thread-safe
4731 by remembering the creator's thread ID in rsa->blinding and
4732 having all other threads use local one-time blinding factors
4733 (this requires more computation than sharing rsa->blinding, but
4734 avoids excessive locking; and if an RSA object is not shared
4735 between threads, blinding will still be very fast).
4738 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4739 ENGINE as defaults for all supported algorithms irrespective of
4740 the 'flags' parameter. 'flags' is now honoured, so applications
4741 should make sure they are passing it correctly.
4744 *) Target "mingw" now allows native Windows code to be generated in
4745 the Cygwin environment as well as with the MinGW compiler.
4748 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4750 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4751 via timing by performing a MAC computation even if incorrect
4752 block cipher padding has been found. This is a countermeasure
4753 against active attacks where the attacker has to distinguish
4754 between bad padding and a MAC verification error. (CVE-2003-0078)
4756 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4757 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4758 Martin Vuagnoux (EPFL, Ilion)]
4760 *) Make the no-err option work as intended. The intention with no-err
4761 is not to have the whole error stack handling routines removed from
4762 libcrypto, it's only intended to remove all the function name and
4763 reason texts, thereby removing some of the footprint that may not
4764 be interesting if those errors aren't displayed anyway.
4766 NOTE: it's still possible for any application or module to have it's
4767 own set of error texts inserted. The routines are there, just not
4768 used by default when no-err is given.
4771 *) Add support for FreeBSD on IA64.
4772 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4774 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4775 Kerberos function mit_des_cbc_cksum(). Before this change,
4776 the value returned by DES_cbc_cksum() was like the one from
4777 mit_des_cbc_cksum(), except the bytes were swapped.
4778 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4780 *) Allow an application to disable the automatic SSL chain building.
4781 Before this a rather primitive chain build was always performed in
4782 ssl3_output_cert_chain(): an application had no way to send the
4783 correct chain if the automatic operation produced an incorrect result.
4785 Now the chain builder is disabled if either:
4787 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4789 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4791 The reasoning behind this is that an application would not want the
4792 auto chain building to take place if extra chain certificates are
4793 present and it might also want a means of sending no additional
4794 certificates (for example the chain has two certificates and the
4798 *) Add the possibility to build without the ENGINE framework.
4799 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4801 *) Under Win32 gmtime() can return NULL: check return value in
4802 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4805 *) DSA routines: under certain error conditions uninitialized BN objects
4806 could be freed. Solution: make sure initialization is performed early
4807 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4808 Nils Larsch <nla@trustcenter.de> via PR#459)
4811 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4812 checked on reconnect on the client side, therefore session resumption
4813 could still fail with a "ssl session id is different" error. This
4814 behaviour is masked when SSL_OP_ALL is used due to
4815 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4816 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4817 followup to PR #377.
4820 *) IA-32 assembler support enhancements: unified ELF targets, support
4821 for SCO/Caldera platforms, fix for Cygwin shared build.
4824 *) Add support for FreeBSD on sparc64. As a consequence, support for
4825 FreeBSD on non-x86 processors is separate from x86 processors on
4826 the config script, much like the NetBSD support.
4827 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4829 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4831 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4834 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4835 code (06) was taken as the first octet of the session ID and the last
4836 octet was ignored consequently. As a result SSLv2 client side session
4837 caching could not have worked due to the session ID mismatch between
4839 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4843 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4844 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4848 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4849 seems that in spite of existing for more than a year, many application
4850 author have done nothing to provide the necessary callbacks, which
4851 means that this particular engine will not work properly anywhere.
4852 This is a very unfortunate situation which forces us, in the name
4853 of usability, to give the hw_ncipher.c a static lock, which is part
4855 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4856 appear in 0.9.8 or later. We EXPECT application authors to have
4857 dealt properly with this when 0.9.8 is released (unless we actually
4858 make such changes in the libcrypto locking code that changes will
4859 have to be made anyway).
4862 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4863 octets have been read, EOF or an error occurs. Without this change
4864 some truncated ASN1 structures will not produce an error.
4867 *) Disable Heimdal support, since it hasn't been fully implemented.
4868 Still give the possibility to force the use of Heimdal, but with
4869 warnings and a request that patches get sent to openssl-dev.
4872 *) Add the VC-CE target, introduce the WINCE sysname, and add
4873 INSTALL.WCE and appropriate conditionals to make it build.
4874 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4876 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4877 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4878 edit numbers of the version.
4879 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4881 *) Introduce safe string copy and catenation functions
4882 (BUF_strlcpy() and BUF_strlcat()).
4883 [Ben Laurie (CHATS) and Richard Levitte]
4885 *) Avoid using fixed-size buffers for one-line DNs.
4886 [Ben Laurie (CHATS)]
4888 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4889 resizing buffers containing secrets, and use where appropriate.
4890 [Ben Laurie (CHATS)]
4892 *) Avoid using fixed size buffers for configuration file location.
4893 [Ben Laurie (CHATS)]
4895 *) Avoid filename truncation for various CA files.
4896 [Ben Laurie (CHATS)]
4898 *) Use sizeof in preference to magic numbers.
4899 [Ben Laurie (CHATS)]
4901 *) Avoid filename truncation in cert requests.
4902 [Ben Laurie (CHATS)]
4904 *) Add assertions to check for (supposedly impossible) buffer
4906 [Ben Laurie (CHATS)]
4908 *) Don't cache truncated DNS entries in the local cache (this could
4909 potentially lead to a spoofing attack).
4910 [Ben Laurie (CHATS)]
4912 *) Fix various buffers to be large enough for hex/decimal
4913 representations in a platform independent manner.
4914 [Ben Laurie (CHATS)]
4916 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4917 resizing buffers containing secrets, and use where appropriate.
4918 [Ben Laurie (CHATS)]
4920 *) Add BIO_indent() to avoid much slightly worrying code to do
4922 [Ben Laurie (CHATS)]
4924 *) Convert sprintf()/BIO_puts() to BIO_printf().
4925 [Ben Laurie (CHATS)]
4927 *) buffer_gets() could terminate with the buffer only half
4929 [Ben Laurie (CHATS)]
4931 *) Add assertions to prevent user-supplied crypto functions from
4932 overflowing internal buffers by having large block sizes, etc.
4933 [Ben Laurie (CHATS)]
4935 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4937 [Ben Laurie (CHATS)]
4939 *) Eliminate unused copy of key in RC4.
4940 [Ben Laurie (CHATS)]
4942 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4943 [Ben Laurie (CHATS)]
4945 *) Fix off-by-one error in EGD path.
4946 [Ben Laurie (CHATS)]
4948 *) If RANDFILE path is too long, ignore instead of truncating.
4949 [Ben Laurie (CHATS)]
4951 *) Eliminate unused and incorrectly sized X.509 structure
4953 [Ben Laurie (CHATS)]
4955 *) Eliminate unused and dangerous function knumber().
4956 [Ben Laurie (CHATS)]
4958 *) Eliminate unused and dangerous structure, KSSL_ERR.
4959 [Ben Laurie (CHATS)]
4961 *) Protect against overlong session ID context length in an encoded
4962 session object. Since these are local, this does not appear to be
4964 [Ben Laurie (CHATS)]
4966 *) Change from security patch (see 0.9.6e below) that did not affect
4967 the 0.9.6 release series:
4969 Remote buffer overflow in SSL3 protocol - an attacker could
4970 supply an oversized master key in Kerberos-enabled versions.
4972 [Ben Laurie (CHATS)]
4974 *) Change the SSL kerb5 codes to match RFC 2712.
4977 *) Make -nameopt work fully for req and add -reqopt switch.
4978 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4980 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4981 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4983 *) Make sure tests can be performed even if the corresponding algorithms
4984 have been removed entirely. This was also the last step to make
4985 OpenSSL compilable with DJGPP under all reasonable conditions.
4986 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4988 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4989 to allow version independent disabling of normally unselected ciphers,
4990 which may be activated as a side-effect of selecting a single cipher.
4992 (E.g., cipher list string "RSA" enables ciphersuites that are left
4993 out of "ALL" because they do not provide symmetric encryption.
4994 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4995 [Lutz Jaenicke, Bodo Moeller]
4997 *) Add appropriate support for separate platform-dependent build
4998 directories. The recommended way to make a platform-dependent
4999 build directory is the following (tested on Linux), maybe with
5002 # Place yourself outside of the OpenSSL source tree. In
5003 # this example, the environment variable OPENSSL_SOURCE
5004 # is assumed to contain the absolute OpenSSL source directory.
5005 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
5006 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
5007 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
5008 mkdir -p `dirname $F`
5009 ln -s $OPENSSL_SOURCE/$F $F
5012 To be absolutely sure not to disturb the source tree, a "make clean"
5013 is a good thing. If it isn't successfull, don't worry about it,
5014 it probably means the source directory is very clean.
5017 *) Make sure any ENGINE control commands make local copies of string
5018 pointers passed to them whenever necessary. Otherwise it is possible
5019 the caller may have overwritten (or deallocated) the original string
5020 data when a later ENGINE operation tries to use the stored values.
5021 [Götz Babin-Ebell <babinebell@trustcenter.de>]
5023 *) Improve diagnostics in file reading and command-line digests.
5024 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
5026 *) Add AES modes CFB and OFB to the object database. Correct an
5027 error in AES-CFB decryption.
5030 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
5031 allows existing EVP_CIPHER_CTX structures to be reused after
5032 calling EVP_*Final(). This behaviour is used by encryption
5033 BIOs and some applications. This has the side effect that
5034 applications must explicitly clean up cipher contexts with
5035 EVP_CIPHER_CTX_cleanup() or they will leak memory.
5038 *) Check the values of dna and dnb in bn_mul_recursive before calling
5039 bn_mul_comba (a non zero value means the a or b arrays do not contain
5040 n2 elements) and fallback to bn_mul_normal if either is not zero.
5043 *) Fix escaping of non-ASCII characters when using the -subj option
5044 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
5047 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
5048 form for "surname", serialNumber has no short form.
5049 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
5050 therefore remove "mail" short name for "internet 7".
5051 The OID for unique identifiers in X509 certificates is
5052 x500UniqueIdentifier, not uniqueIdentifier.
5053 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
5056 *) Add an "init" command to the ENGINE config module and auto initialize
5057 ENGINEs. Without any "init" command the ENGINE will be initialized
5058 after all ctrl commands have been executed on it. If init=1 the
5059 ENGINE is initailized at that point (ctrls before that point are run
5060 on the uninitialized ENGINE and after on the initialized one). If
5061 init=0 then the ENGINE will not be iniatialized at all.
5064 *) Fix the 'app_verify_callback' interface so that the user-defined
5065 argument is actually passed to the callback: In the
5066 SSL_CTX_set_cert_verify_callback() prototype, the callback
5067 declaration has been changed from
5070 int (*cb)(X509_STORE_CTX *,void *);
5071 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
5072 i=s->ctx->app_verify_callback(&ctx)
5073 has been changed into
5074 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
5076 To update applications using SSL_CTX_set_cert_verify_callback(),
5077 a dummy argument can be added to their callback functions.
5078 [D. K. Smetters <smetters@parc.xerox.com>]
5080 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5081 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5083 *) Add and OPENSSL_LOAD_CONF define which will cause
5084 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5085 This allows older applications to transparently support certain
5086 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5087 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5088 load the config file and OPENSSL_add_all_algorithms_conf() which will
5089 always load it have also been added.
5092 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5093 Adjust NIDs and EVP layer.
5094 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5096 *) Config modules support in openssl utility.
5098 Most commands now load modules from the config file,
5099 though in a few (such as version) this isn't done
5100 because it couldn't be used for anything.
5102 In the case of ca and req the config file used is
5103 the same as the utility itself: that is the -config
5104 command line option can be used to specify an
5108 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5109 use "openssl_conf" if filename is NULL use default openssl config file.
5112 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5113 config section name. Add a new flag to tolerate a missing config file
5114 and move code to CONF_modules_load_file().
5117 *) Support for crypto accelerator cards from Accelerated Encryption
5118 Processing, www.aep.ie. (Use engine 'aep')
5119 The support was copied from 0.9.6c [engine] and adapted/corrected
5120 to work with the new engine framework.
5121 [AEP Inc. and Richard Levitte]
5123 *) Support for SureWare crypto accelerator cards from Baltimore
5124 Technologies. (Use engine 'sureware')
5125 The support was copied from 0.9.6c [engine] and adapted
5126 to work with the new engine framework.
5129 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5130 make the newer ENGINE framework commands for the CHIL engine work.
5131 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5133 *) Make it possible to produce shared libraries on ReliantUNIX.
5134 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5136 *) Add the configuration target debug-linux-ppro.
5137 Make 'openssl rsa' use the general key loading routines
5138 implemented in apps.c, and make those routines able to
5139 handle the key format FORMAT_NETSCAPE and the variant
5141 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5143 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5144 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5146 *) Add -keyform to rsautl, and document -engine.
5147 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5149 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5150 BIO_R_NO_SUCH_FILE error code rather than the generic
5151 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5154 *) Add new functions
5156 ERR_peek_last_error_line
5157 ERR_peek_last_error_line_data.
5158 These are similar to
5161 ERR_peek_error_line_data,
5162 but report on the latest error recorded rather than the first one
5163 still in the error queue.
5164 [Ben Laurie, Bodo Moeller]
5166 *) default_algorithms option in ENGINE config module. This allows things
5168 default_algorithms = ALL
5169 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5172 *) Preliminary ENGINE config module.
5175 *) New experimental application configuration code.
5178 *) Change the AES code to follow the same name structure as all other
5179 symmetric ciphers, and behave the same way. Move everything to
5180 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5181 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5183 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5184 [Ben Laurie and Theo de Raadt]
5186 *) Add option to output public keys in req command.
5187 [Massimiliano Pala madwolf@openca.org]
5189 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5190 (up to about 10% better than before for P-192 and P-224).
5193 *) New functions/macros
5195 SSL_CTX_set_msg_callback(ctx, cb)
5196 SSL_CTX_set_msg_callback_arg(ctx, arg)
5197 SSL_set_msg_callback(ssl, cb)
5198 SSL_set_msg_callback_arg(ssl, arg)
5200 to request calling a callback function
5202 void cb(int write_p, int version, int content_type,
5203 const void *buf, size_t len, SSL *ssl, void *arg)
5205 whenever a protocol message has been completely received
5206 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5207 protocol version according to which the SSL library interprets
5208 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5209 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5210 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5211 specification (change_cipher_spec(20), alert(21), handshake(22)).
5212 'buf' and 'len' point to the actual message, 'ssl' to the
5213 SSL object, and 'arg' is the application-defined value set by
5214 SSL[_CTX]_set_msg_callback_arg().
5216 'openssl s_client' and 'openssl s_server' have new '-msg' options
5217 to enable a callback that displays all protocol messages.
5220 *) Change the shared library support so shared libraries are built as
5221 soon as the corresponding static library is finished, and thereby get
5222 openssl and the test programs linked against the shared library.
5223 This still only happens when the keyword "shard" has been given to
5224 the configuration scripts.
5226 NOTE: shared library support is still an experimental thing, and
5227 backward binary compatibility is still not guaranteed.
5228 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5230 *) Add support for Subject Information Access extension.
5231 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5233 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5234 additional bytes when new memory had to be allocated, not just
5235 when reusing an existing buffer.
5238 *) New command line and configuration option 'utf8' for the req command.
5239 This allows field values to be specified as UTF8 strings.
5242 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5243 runs for the former and machine-readable output for the latter.
5246 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5247 of the e-mail address in the DN (i.e., it will go into a certificate
5248 extension only). The new configuration file option 'email_in_dn = no'
5249 has the same effect.
5250 [Massimiliano Pala madwolf@openca.org]
5252 *) Change all functions with names starting with des_ to be starting
5253 with DES_ instead. Add wrappers that are compatible with libdes,
5254 but are named _ossl_old_des_*. Finally, add macros that map the
5255 des_* symbols to the corresponding _ossl_old_des_* if libdes
5256 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5257 desired, the des_* symbols will be mapped to DES_*, with one
5260 Since we provide two compatibility mappings, the user needs to
5261 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5262 compatibility is desired. The default (i.e., when that macro
5263 isn't defined) is OpenSSL 0.9.6c compatibility.
5265 There are also macros that enable and disable the support of old
5266 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5267 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5268 are defined, the default will apply: to support the old des routines.
5270 In either case, one must include openssl/des.h to get the correct
5271 definitions. Do not try to just include openssl/des_old.h, that
5274 NOTE: This is a major break of an old API into a new one. Software
5275 authors are encouraged to switch to the DES_ style functions. Some
5276 time in the future, des_old.h and the libdes compatibility functions
5277 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5278 default), and then completely removed.
5281 *) Test for certificates which contain unsupported critical extensions.
5282 If such a certificate is found during a verify operation it is
5283 rejected by default: this behaviour can be overridden by either
5284 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5285 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5286 X509_supported_extension() has also been added which returns 1 if a
5287 particular extension is supported.
5290 *) Modify the behaviour of EVP cipher functions in similar way to digests
5291 to retain compatibility with existing code.
5294 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5295 compatibility with existing code. In particular the 'ctx' parameter does
5296 not have to be to be initialized before the call to EVP_DigestInit() and
5297 it is tidied up after a call to EVP_DigestFinal(). New function
5298 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5299 EVP_MD_CTX_copy() changed to not require the destination to be
5300 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5301 requires the destination to be valid.
5303 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5304 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5307 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5308 so that complete 'Handshake' protocol structures are kept in memory
5309 instead of overwriting 'msg_type' and 'length' with 'body' data.
5312 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5313 [Massimo Santin via Richard Levitte]
5315 *) Major restructuring to the underlying ENGINE code. This includes
5316 reduction of linker bloat, separation of pure "ENGINE" manipulation
5317 (initialisation, etc) from functionality dealing with implementations
5318 of specific crypto iterfaces. This change also introduces integrated
5319 support for symmetric ciphers and digest implementations - so ENGINEs
5320 can now accelerate these by providing EVP_CIPHER and EVP_MD
5321 implementations of their own. This is detailed in crypto/engine/README
5322 as it couldn't be adequately described here. However, there are a few
5323 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5324 were changed in the original introduction of ENGINE code have now
5325 reverted back - the hooking from this code to ENGINE is now a good
5326 deal more passive and at run-time, operations deal directly with
5327 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5328 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5329 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5330 they were not being used by the framework as there is no concept of a
5331 BIGNUM_METHOD and they could not be generalised to the new
5332 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5333 ENGINE_cpy() has been removed as it cannot be consistently defined in
5337 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5340 *) Change mkdef.pl to sort symbols that get the same entry number,
5341 and make sure the automatically generated functions ERR_load_*
5342 become part of libeay.num as well.
5345 *) New function SSL_renegotiate_pending(). This returns true once
5346 renegotiation has been requested (either SSL_renegotiate() call
5347 or HelloRequest/ClientHello received from the peer) and becomes
5348 false once a handshake has been completed.
5349 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5350 sends a HelloRequest, but does not ensure that a handshake takes
5351 place. SSL_renegotiate_pending() is useful for checking if the
5352 client has followed the request.)
5355 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5356 By default, clients may request session resumption even during
5357 renegotiation (if session ID contexts permit); with this option,
5358 session resumption is possible only in the first handshake.
5360 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5361 more bits available for options that should not be part of
5362 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5365 *) Add some demos for certificate and certificate request creation.
5368 *) Make maximum certificate chain size accepted from the peer application
5369 settable (SSL*_get/set_max_cert_list()), as proposed by
5370 "Douglas E. Engert" <deengert@anl.gov>.
5373 *) Add support for shared libraries for Unixware-7
5374 (Boyd Lynn Gerber <gerberb@zenez.com>).
5377 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5378 be done prior to destruction. Use this to unload error strings from
5379 ENGINEs that load their own error strings. NB: This adds two new API
5380 functions to "get" and "set" this destroy handler in an ENGINE.
5383 *) Alter all existing ENGINE implementations (except "openssl" and
5384 "openbsd") to dynamically instantiate their own error strings. This
5385 makes them more flexible to be built both as statically-linked ENGINEs
5386 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5387 Also, add stub code to each that makes building them as self-contained
5388 shared-libraries easier (see README.ENGINE).
5391 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5392 implementations into applications that are completely implemented in
5393 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5394 commands that can be used to configure what shared-library to load and
5395 to control aspects of the way it is handled. Also, made an update to
5396 the README.ENGINE file that brings its information up-to-date and
5397 provides some information and instructions on the "dynamic" ENGINE
5398 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5401 *) Make it possible to unload ranges of ERR strings with a new
5402 "ERR_unload_strings" function.
5405 *) Add a copy() function to EVP_MD.
5408 *) Make EVP_MD routines take a context pointer instead of just the
5409 md_data void pointer.
5412 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5413 that the digest can only process a single chunk of data
5414 (typically because it is provided by a piece of
5415 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5416 is only going to provide a single chunk of data, and hence the
5417 framework needn't accumulate the data for oneshot drivers.
5420 *) As with "ERR", make it possible to replace the underlying "ex_data"
5421 functions. This change also alters the storage and management of global
5422 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5423 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5424 index counters. The API functions that use this state have been changed
5425 to take a "class_index" rather than pointers to the class's local STACK
5426 and counter, and there is now an API function to dynamically create new
5427 classes. This centralisation allows us to (a) plug a lot of the
5428 thread-safety problems that existed, and (b) makes it possible to clean
5429 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5430 such data would previously have always leaked in application code and
5431 workarounds were in place to make the memory debugging turn a blind eye
5432 to it. Application code that doesn't use this new function will still
5433 leak as before, but their memory debugging output will announce it now
5434 rather than letting it slide.
5436 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5437 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5438 has a return value to indicate success or failure.
5441 *) Make it possible to replace the underlying "ERR" functions such that the
5442 global state (2 LHASH tables and 2 locks) is only used by the "default"
5443 implementation. This change also adds two functions to "get" and "set"
5444 the implementation prior to it being automatically set the first time
5445 any other ERR function takes place. Ie. an application can call "get",
5446 pass the return value to a module it has just loaded, and that module
5447 can call its own "set" function using that value. This means the
5448 module's "ERR" operations will use (and modify) the error state in the
5449 application and not in its own statically linked copy of OpenSSL code.
5452 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5453 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5454 the operation, and provides a more encapsulated way for external code
5455 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5456 to use these functions rather than manually incrementing the counts.
5458 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5461 *) Add EVP test program.
5464 *) Add symmetric cipher support to ENGINE. Expect the API to change!
5467 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
5468 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
5469 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
5470 These allow a CRL to be built without having to access X509_CRL fields
5471 directly. Modify 'ca' application to use new functions.
5474 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5475 bug workarounds. Rollback attack detection is a security feature.
5476 The problem will only arise on OpenSSL servers when TLSv1 is not
5477 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
5478 Software authors not wanting to support TLSv1 will have special reasons
5479 for their choice and can explicitly enable this option.
5480 [Bodo Moeller, Lutz Jaenicke]
5482 *) Rationalise EVP so it can be extended: don't include a union of
5483 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
5484 (similar to those existing for EVP_CIPHER_CTX).
5489 EVP_MD_CTX_init(&md); /* new function call */
5490 EVP_DigestInit(&md, EVP_sha1());
5491 EVP_DigestUpdate(&md, in, len);
5492 EVP_DigestFinal(&md, out, NULL);
5493 EVP_MD_CTX_cleanup(&md); /* new function call */
5497 *) Make DES key schedule conform to the usual scheme, as well as
5498 correcting its structure. This means that calls to DES functions
5499 now have to pass a pointer to a des_key_schedule instead of a
5500 plain des_key_schedule (which was actually always a pointer
5503 des_key_schedule ks;
5505 des_set_key_checked(..., &ks);
5506 des_ncbc_encrypt(..., &ks, ...);
5508 (Note that a later change renames 'des_...' into 'DES_...'.)
5511 *) Initial reduction of linker bloat: the use of some functions, such as
5512 PEM causes large amounts of unused functions to be linked in due to
5513 poor organisation. For example pem_all.c contains every PEM function
5514 which has a knock on effect of linking in large amounts of (unused)
5515 ASN1 code. Grouping together similar functions and splitting unrelated
5516 functions prevents this.
5519 *) Cleanup of EVP macros.
5522 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5523 correct _ecb suffix.
5526 *) Add initial OCSP responder support to ocsp application. The
5527 revocation information is handled using the text based index
5528 use by the ca application. The responder can either handle
5529 requests generated internally, supplied in files (for example
5530 via a CGI script) or using an internal minimal server.
5533 *) Add configuration choices to get zlib compression for TLS.
5536 *) Changes to Kerberos SSL for RFC 2712 compliance:
5537 1. Implemented real KerberosWrapper, instead of just using
5538 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
5539 2. Implemented optional authenticator field of KerberosWrapper.
5541 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
5542 and authenticator structs; see crypto/krb5/.
5544 Generalized Kerberos calls to support multiple Kerberos libraries.
5545 [Vern Staats <staatsvr@asc.hpc.mil>,
5546 Jeffrey Altman <jaltman@columbia.edu>
5547 via Richard Levitte]
5549 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5550 already does with RSA. testdsa.h now has 'priv_key/pub_key'
5551 values for each of the key sizes rather than having just
5552 parameters (and 'speed' generating keys each time).
5555 *) Speed up EVP routines.
5558 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
5559 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
5560 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
5561 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
5563 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
5564 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
5565 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
5568 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
5570 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
5573 *) Added the OS2-EMX target.
5574 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5576 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5577 to support NCONF routines in extension code. New function CONF_set_nconf()
5578 to allow functions which take an NCONF to also handle the old LHASH
5579 structure: this means that the old CONF compatible routines can be
5580 retained (in particular wrt extensions) without having to duplicate the
5581 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5584 *) Enhance the general user interface with mechanisms for inner control
5585 and with possibilities to have yes/no kind of prompts.
5588 *) Change all calls to low level digest routines in the library and
5589 applications to use EVP. Add missing calls to HMAC_cleanup() and
5590 don't assume HMAC_CTX can be copied using memcpy().
5591 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5593 *) Add the possibility to control engines through control names but with
5594 arbitrary arguments instead of just a string.
5595 Change the key loaders to take a UI_METHOD instead of a callback
5596 function pointer. NOTE: this breaks binary compatibility with earlier
5597 versions of OpenSSL [engine].
5598 Adapt the nCipher code for these new conditions and add a card insertion
5602 *) Enhance the general user interface with mechanisms to better support
5603 dialog box interfaces, application-defined prompts, the possibility
5604 to use defaults (for example default passwords from somewhere else)
5605 and interrupts/cancellations.
5608 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5609 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5612 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5613 tidy up some unnecessarily weird code in 'sk_new()').
5614 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5616 *) Change the key loading routines for ENGINEs to use the same kind
5617 callback (pem_password_cb) as all other routines that need this
5621 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5622 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5623 than this minimum value is recommended.
5626 *) New random seeder for OpenVMS, using the system process statistics
5627 that are easily reachable.
5630 *) Windows apparently can't transparently handle global
5631 variables defined in DLLs. Initialisations such as:
5633 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5635 wont compile. This is used by the any applications that need to
5636 declare their own ASN1 modules. This was fixed by adding the option
5637 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5638 needed for static libraries under Win32.
5641 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5642 setting of purpose and trust fields. New X509_STORE trust and
5643 purpose functions and tidy up setting in other SSL functions.
5646 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5647 structure. These are inherited by X509_STORE_CTX when it is
5648 initialised. This allows various defaults to be set in the
5649 X509_STORE structure (such as flags for CRL checking and custom
5650 purpose or trust settings) for functions which only use X509_STORE_CTX
5651 internally such as S/MIME.
5653 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5654 trust settings if they are not set in X509_STORE. This allows X509_STORE
5655 purposes and trust (in S/MIME for example) to override any set by default.
5657 Add command line options for CRL checking to smime, s_client and s_server
5661 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5662 are set then the CRL is looked up in the X509_STORE structure and
5663 its validity and signature checked, then if the certificate is found
5664 in the CRL the verify fails with a revoked error.
5666 Various new CRL related callbacks added to X509_STORE_CTX structure.
5668 Command line options added to 'verify' application to support this.
5670 This needs some additional work, such as being able to handle multiple
5671 CRLs with different times, extension based lookup (rather than just
5672 by subject name) and ultimately more complete V2 CRL extension
5676 *) Add a general user interface API (crypto/ui/). This is designed
5677 to replace things like des_read_password and friends (backward
5678 compatibility functions using this new API are provided).
5679 The purpose is to remove prompting functions from the DES code
5680 section as well as provide for prompting through dialog boxes in
5681 a window system and the like.
5684 *) Add "ex_data" support to ENGINE so implementations can add state at a
5685 per-structure level rather than having to store it globally.
5688 *) Make it possible for ENGINE structures to be copied when retrieved by
5689 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5690 This causes the "original" ENGINE structure to act like a template,
5691 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5692 operational state can be localised to each ENGINE structure, despite the
5693 fact they all share the same "methods". New ENGINE structures returned in
5694 this case have no functional references and the return value is the single
5695 structural reference. This matches the single structural reference returned
5696 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5700 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5701 needs to match any other type at all we need to manually clear the
5705 *) Changes to the "openssl engine" utility to include;
5706 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5707 about an ENGINE's available control commands.
5708 - executing control commands from command line arguments using the
5709 '-pre' and '-post' switches. '-post' is only used if '-t' is
5710 specified and the ENGINE is successfully initialised. The syntax for
5711 the individual commands are colon-separated, for example;
5712 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5715 *) New dynamic control command support for ENGINEs. ENGINEs can now
5716 declare their own commands (numbers), names (strings), descriptions,
5717 and input types for run-time discovery by calling applications. A
5718 subset of these commands are implicitly classed as "executable"
5719 depending on their input type, and only these can be invoked through
5720 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5721 can be based on user input, config files, etc). The distinction is
5722 that "executable" commands cannot return anything other than a boolean
5723 result and can only support numeric or string input, whereas some
5724 discoverable commands may only be for direct use through
5725 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5726 pointers, or other custom uses. The "executable" commands are to
5727 support parameterisations of ENGINE behaviour that can be
5728 unambiguously defined by ENGINEs and used consistently across any
5729 OpenSSL-based application. Commands have been added to all the
5730 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5731 control over shared-library paths without source code alterations.
5734 *) Changed all ENGINE implementations to dynamically allocate their
5735 ENGINEs rather than declaring them statically. Apart from this being
5736 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5737 this also allows the implementations to compile without using the
5738 internal engine_int.h header.
5741 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5742 'const' value. Any code that should be able to modify a RAND_METHOD
5743 should already have non-const pointers to it (ie. they should only
5744 modify their own ones).
5747 *) Made a variety of little tweaks to the ENGINE code.
5748 - "atalla" and "ubsec" string definitions were moved from header files
5749 to C code. "nuron" string definitions were placed in variables
5750 rather than hard-coded - allowing parameterisation of these values
5751 later on via ctrl() commands.
5752 - Removed unused "#if 0"'d code.
5753 - Fixed engine list iteration code so it uses ENGINE_free() to release
5754 structural references.
5755 - Constified the RAND_METHOD element of ENGINE structures.
5756 - Constified various get/set functions as appropriate and added
5757 missing functions (including a catch-all ENGINE_cpy that duplicates
5758 all ENGINE values onto a new ENGINE except reference counts/state).
5759 - Removed NULL parameter checks in get/set functions. Setting a method
5760 or function to NULL is a way of cancelling out a previously set
5761 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5762 and doesn't justify the extra error symbols and code.
5763 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5764 flags from engine_int.h to engine.h.
5765 - Changed prototypes for ENGINE handler functions (init(), finish(),
5766 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5769 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5770 to the algorithm using long division. The binary algorithm can be
5771 used only if the modulus is odd. On 32-bit systems, it is faster
5772 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5773 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5774 up to 450 bits. In 64-bit environments, the binary algorithm
5775 appears to be advantageous for much longer moduli; here we use it
5776 for moduli up to 2048 bits.
5779 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5780 could not support the combine flag in choice fields.
5783 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5784 extensions from a certificate request to the certificate.
5787 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5788 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5789 file: this allows the display of the certificate about to be
5790 signed to be customised, to allow certain fields to be included
5791 or excluded and extension details. The old system didn't display
5792 multicharacter strings properly, omitted fields not in the policy
5793 and couldn't display additional details such as extensions.
5796 *) Function EC_POINTs_mul for multiple scalar multiplication
5797 of an arbitrary number of elliptic curve points
5798 \sum scalars[i]*points[i],
5799 optionally including the generator defined for the EC_GROUP:
5800 scalar*generator + \sum scalars[i]*points[i].
5802 EC_POINT_mul is a simple wrapper function for the typical case
5803 that the point list has just one item (besides the optional
5807 *) First EC_METHODs for curves over GF(p):
5809 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5810 operations and provides various method functions that can also
5811 operate with faster implementations of modular arithmetic.
5813 EC_GFp_mont_method() reuses most functions that are part of
5814 EC_GFp_simple_method, but uses Montgomery arithmetic.
5816 [Bodo Moeller; point addition and point doubling
5817 implementation directly derived from source code provided by
5818 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5820 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5821 crypto/ec/ec_lib.c):
5823 Curves are EC_GROUP objects (with an optional group generator)
5824 based on EC_METHODs that are built into the library.
5826 Points are EC_POINT objects based on EC_GROUP objects.
5828 Most of the framework would be able to handle curves over arbitrary
5829 finite fields, but as there are no obvious types for fields other
5830 than GF(p), some functions are limited to that for now.
5833 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5834 that the file contains a complete HTTP response.
5837 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5838 change the def and num file printf format specifier from "%-40sXXX"
5839 to "%-39s XXX". The latter will always guarantee a space after the
5840 field while the former will cause them to run together if the field
5841 is 40 of more characters long.
5844 *) Constify the cipher and digest 'method' functions and structures
5845 and modify related functions to take constant EVP_MD and EVP_CIPHER
5849 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5850 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5853 *) Modify EVP_Digest*() routines so they now return values. Although the
5854 internal software routines can never fail additional hardware versions
5858 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5860 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5861 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5864 ERR_R_NESTED_ASN1_ERROR
5866 ERR_R_MISSING_ASN1_EOS
5867 were 4 .. 9, conflicting with
5868 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5870 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5871 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5873 Add new error code 'ERR_R_INTERNAL_ERROR'.
5876 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5880 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5881 sets the subject name for a new request or supersedes the
5882 subject name in a given request. Formats that can be parsed are
5883 'CN=Some Name, OU=myOU, C=IT'
5885 'CN=Some Name/OU=myOU/C=IT'.
5887 Add options '-batch' and '-verbose' to 'openssl req'.
5888 [Massimiliano Pala <madwolf@hackmasters.net>]
5890 *) Introduce the possibility to access global variables through
5891 functions on platform were that's the best way to handle exporting
5892 global variables in shared libraries. To enable this functionality,
5893 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5894 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5895 is normally done by Configure or something similar).
5897 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5898 in the source file (foo.c) like this:
5900 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5901 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5903 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5904 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5906 OPENSSL_DECLARE_GLOBAL(int,foo);
5907 #define foo OPENSSL_GLOBAL_REF(foo)
5908 OPENSSL_DECLARE_GLOBAL(double,bar);
5909 #define bar OPENSSL_GLOBAL_REF(bar)
5911 The #defines are very important, and therefore so is including the
5912 header file everywhere where the defined globals are used.
5914 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5915 of ASN.1 items, but that structure is a bit different.
5917 The largest change is in util/mkdef.pl which has been enhanced with
5918 better and easier to understand logic to choose which symbols should
5919 go into the Windows .def files as well as a number of fixes and code
5920 cleanup (among others, algorithm keywords are now sorted
5921 lexicographically to avoid constant rewrites).
5924 *) In BN_div() keep a copy of the sign of 'num' before writing the
5925 result to 'rm' because if rm==num the value will be overwritten
5926 and produce the wrong result if 'num' is negative: this caused
5927 problems with BN_mod() and BN_nnmod().
5930 *) Function OCSP_request_verify(). This checks the signature on an
5931 OCSP request and verifies the signer certificate. The signer
5932 certificate is just checked for a generic purpose and OCSP request
5936 *) Add OCSP_check_validity() function to check the validity of OCSP
5937 responses. OCSP responses are prepared in real time and may only
5938 be a few seconds old. Simply checking that the current time lies
5939 between thisUpdate and nextUpdate max reject otherwise valid responses
5940 caused by either OCSP responder or client clock inaccuracy. Instead
5941 we allow thisUpdate and nextUpdate to fall within a certain period of
5942 the current time. The age of the response can also optionally be
5943 checked. Two new options -validity_period and -status_age added to
5947 *) If signature or public key algorithm is unrecognized print out its
5948 OID rather that just UNKNOWN.
5951 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5952 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5953 ID to be generated from the issuer certificate alone which can then be
5954 passed to OCSP_id_issuer_cmp().
5957 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5958 ASN1 modules to export functions returning ASN1_ITEM pointers
5959 instead of the ASN1_ITEM structures themselves. This adds several
5960 new macros which allow the underlying ASN1 function/structure to
5961 be accessed transparently. As a result code should not use ASN1_ITEM
5962 references directly (such as &X509_it) but instead use the relevant
5963 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5964 use of the new ASN1 code on platforms where exporting structures
5965 is problematical (for example in shared libraries) but exporting
5966 functions returning pointers to structures is not.
5969 *) Add support for overriding the generation of SSL/TLS session IDs.
5970 These callbacks can be registered either in an SSL_CTX or per SSL.
5971 The purpose of this is to allow applications to control, if they wish,
5972 the arbitrary values chosen for use as session IDs, particularly as it
5973 can be useful for session caching in multiple-server environments. A
5974 command-line switch for testing this (and any client code that wishes
5975 to use such a feature) has been added to "s_server".
5976 [Geoff Thorpe, Lutz Jaenicke]
5978 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5979 of the form '#if defined(...) || defined(...) || ...' and
5980 '#if !defined(...) && !defined(...) && ...'. This also avoids
5981 the growing number of special cases it was previously handling.
5984 *) Make all configuration macros available for application by making
5985 sure they are available in opensslconf.h, by giving them names starting
5986 with "OPENSSL_" to avoid conflicts with other packages and by making
5987 sure e_os2.h will cover all platform-specific cases together with
5989 Additionally, it is now possible to define configuration/platform-
5990 specific names (called "system identities"). In the C code, these
5991 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5992 macro with the name beginning with "OPENSSL_SYS_", which is determined
5993 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5997 *) New option -set_serial to 'req' and 'x509' this allows the serial
5998 number to use to be specified on the command line. Previously self
5999 signed certificates were hard coded with serial number 0 and the
6000 CA options of 'x509' had to use a serial number in a file which was
6004 *) New options to 'ca' utility to support V2 CRL entry extensions.
6005 Currently CRL reason, invalidity date and hold instruction are
6006 supported. Add new CRL extensions to V3 code and some new objects.
6009 *) New function EVP_CIPHER_CTX_set_padding() this is used to
6010 disable standard block padding (aka PKCS#5 padding) in the EVP
6011 API, which was previously mandatory. This means that the data is
6012 not padded in any way and so the total length much be a multiple
6013 of the block size, otherwise an error occurs.
6016 *) Initial (incomplete) OCSP SSL support.
6019 *) New function OCSP_parse_url(). This splits up a URL into its host,
6020 port and path components: primarily to parse OCSP URLs. New -url
6021 option to ocsp utility.
6024 *) New nonce behavior. The return value of OCSP_check_nonce() now
6025 reflects the various checks performed. Applications can decide
6026 whether to tolerate certain situations such as an absent nonce
6027 in a response when one was present in a request: the ocsp application
6028 just prints out a warning. New function OCSP_add1_basic_nonce()
6029 this is to allow responders to include a nonce in a response even if
6030 the request is nonce-less.
6033 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
6034 skipped when using openssl x509 multiple times on a single input file,
6035 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
6038 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
6039 set string type: to handle setting ASN1_TIME structures. Fix ca
6040 utility to correctly initialize revocation date of CRLs.
6043 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
6044 the clients preferred ciphersuites and rather use its own preferences.
6045 Should help to work around M$ SGC (Server Gated Cryptography) bug in
6046 Internet Explorer by ensuring unchanged hash method during stepup.
6047 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
6050 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
6051 to aes and add a new 'exist' option to print out symbols that don't
6055 *) Additional options to ocsp utility to allow flags to be set and
6056 additional certificates supplied.
6059 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
6060 OCSP client a number of certificate to only verify the response
6064 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
6065 handle the new API. Currently only ECB, CBC modes supported. Add new
6068 Add TLS AES ciphersuites as described in RFC3268, "Advanced
6069 Encryption Standard (AES) Ciphersuites for Transport Layer
6070 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
6071 not enabled by default and were not part of the "ALL" ciphersuite
6072 alias because they were not yet official; they could be
6073 explicitly requested by specifying the "AESdraft" ciphersuite
6074 group alias. In the final release of OpenSSL 0.9.7, the group
6075 alias is called "AES" and is part of "ALL".)
6076 [Ben Laurie, Steve Henson, Bodo Moeller]
6078 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6079 request to response.
6082 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6083 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6084 extract information from a certificate request. OCSP_response_create()
6085 creates a response and optionally adds a basic response structure.
6086 OCSP_basic_add1_status() adds a complete single response to a basic
6087 response and returns the OCSP_SINGLERESP structure just added (to allow
6088 extensions to be included for example). OCSP_basic_add1_cert() adds a
6089 certificate to a basic response and OCSP_basic_sign() signs a basic
6090 response with various flags. New helper functions ASN1_TIME_check()
6091 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6092 (converts ASN1_TIME to GeneralizedTime).
6095 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6096 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6097 structure from a certificate. X509_pubkey_digest() digests the public_key
6098 contents: this is used in various key identifiers.
6101 *) Make sk_sort() tolerate a NULL argument.
6102 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6104 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6105 passed by the function are trusted implicitly. If any of them signed the
6106 response then it is assumed to be valid and is not verified.
6109 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6110 to data. This was previously part of the PKCS7 ASN1 code. This
6111 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6112 [Steve Henson, reported by Kenneth R. Robinette
6113 <support@securenetterm.com>]
6115 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6116 routines: without these tracing memory leaks is very painful.
6117 Fix leaks in PKCS12 and PKCS7 routines.
6120 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6121 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6122 effectively meant GeneralizedTime would never be used. Now it
6123 is initialised to -1 but X509_time_adj() now has to check the value
6124 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6125 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6126 [Steve Henson, reported by Kenneth R. Robinette
6127 <support@securenetterm.com>]
6129 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6130 result in a zero length in the ASN1_INTEGER structure which was
6131 not consistent with the structure when d2i_ASN1_INTEGER() was used
6132 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6133 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6134 where it did not print out a minus for negative ASN1_INTEGER.
6137 *) Add summary printout to ocsp utility. The various functions which
6138 convert status values to strings have been renamed to:
6139 OCSP_response_status_str(), OCSP_cert_status_str() and
6140 OCSP_crl_reason_str() and are no longer static. New options
6141 to verify nonce values and to disable verification. OCSP response
6142 printout format cleaned up.
6145 *) Add additional OCSP certificate checks. These are those specified
6146 in RFC2560. This consists of two separate checks: the CA of the
6147 certificate being checked must either be the OCSP signer certificate
6148 or the issuer of the OCSP signer certificate. In the latter case the
6149 OCSP signer certificate must contain the OCSP signing extended key
6150 usage. This check is performed by attempting to match the OCSP
6151 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6152 in the OCSP_CERTID structures of the response.
6155 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6156 and related routines. This uses the standard OpenSSL certificate
6157 verify routines to perform initial checks (just CA validity) and
6158 to obtain the certificate chain. Then additional checks will be
6159 performed on the chain. Currently the root CA is checked to see
6160 if it is explicitly trusted for OCSP signing. This is used to set
6161 a root CA as a global signing root: that is any certificate that
6162 chains to that CA is an acceptable OCSP signing certificate.
6165 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6166 extensions from a separate configuration file.
6167 As when reading extensions from the main configuration file,
6168 the '-extensions ...' option may be used for specifying the
6170 [Massimiliano Pala <madwolf@comune.modena.it>]
6172 *) New OCSP utility. Allows OCSP requests to be generated or
6173 read. The request can be sent to a responder and the output
6174 parsed, outputed or printed in text form. Not complete yet:
6175 still needs to check the OCSP response validity.
6178 *) New subcommands for 'openssl ca':
6179 'openssl ca -status <serial>' prints the status of the cert with
6180 the given serial number (according to the index file).
6181 'openssl ca -updatedb' updates the expiry status of certificates
6183 [Massimiliano Pala <madwolf@comune.modena.it>]
6185 *) New '-newreq-nodes' command option to CA.pl. This is like
6186 '-newreq', but calls 'openssl req' with the '-nodes' option
6187 so that the resulting key is not encrypted.
6188 [Damien Miller <djm@mindrot.org>]
6190 *) New configuration for the GNU Hurd.
6191 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6193 *) Initial code to implement OCSP basic response verify. This
6194 is currently incomplete. Currently just finds the signer's
6195 certificate and verifies the signature on the response.
6198 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6199 value of OPENSSLDIR. This is available via the new '-d' option
6200 to 'openssl version', and is also included in 'openssl version -a'.
6203 *) Allowing defining memory allocation callbacks that will be given
6204 file name and line number information in additional arguments
6205 (a const char* and an int). The basic functionality remains, as
6206 well as the original possibility to just replace malloc(),
6207 realloc() and free() by functions that do not know about these
6208 additional arguments. To register and find out the current
6209 settings for extended allocation functions, the following
6210 functions are provided:
6212 CRYPTO_set_mem_ex_functions
6213 CRYPTO_set_locked_mem_ex_functions
6214 CRYPTO_get_mem_ex_functions
6215 CRYPTO_get_locked_mem_ex_functions
6217 These work the same way as CRYPTO_set_mem_functions and friends.
6218 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6219 extended allocation function is enabled.
6220 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6221 a conventional allocation function is enabled.
6222 [Richard Levitte, Bodo Moeller]
6224 *) Finish off removing the remaining LHASH function pointer casts.
6225 There should no longer be any prototype-casting required when using
6226 the LHASH abstraction, and any casts that remain are "bugs". See
6227 the callback types and macros at the head of lhash.h for details
6228 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6231 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6232 If /dev/[u]random devices are not available or do not return enough
6233 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6235 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6236 /etc/entropy will be queried once each in this sequence, quering stops
6237 when enough entropy was collected without querying more sockets.
6240 *) Change the Unix RAND_poll() variant to be able to poll several
6241 random devices, as specified by DEVRANDOM, until a sufficient amount
6242 of data has been collected. We spend at most 10 ms on each file
6243 (select timeout) and read in non-blocking mode. DEVRANDOM now
6244 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6245 (previously it was just the string "/dev/urandom"), so on typical
6246 platforms the 10 ms delay will never occur.
6247 Also separate out the Unix variant to its own file, rand_unix.c.
6248 For VMS, there's a currently-empty rand_vms.c.
6251 *) Move OCSP client related routines to ocsp_cl.c. These
6252 provide utility functions which an application needing
6253 to issue a request to an OCSP responder and analyse the
6254 response will typically need: as opposed to those which an
6255 OCSP responder itself would need which will be added later.
6257 OCSP_request_sign() signs an OCSP request with an API similar
6258 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6259 response. OCSP_response_get1_basic() extracts basic response
6260 from response. OCSP_resp_find_status(): finds and extracts status
6261 information from an OCSP_CERTID structure (which will be created
6262 when the request structure is built). These are built from lower
6263 level functions which work on OCSP_SINGLERESP structures but
6264 wont normally be used unless the application wishes to examine
6265 extensions in the OCSP response for example.
6267 Replace nonce routines with a pair of functions.
6268 OCSP_request_add1_nonce() adds a nonce value and optionally
6269 generates a random value. OCSP_check_nonce() checks the
6270 validity of the nonce in an OCSP response.
6273 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6274 This doesn't copy the supplied OCSP_CERTID and avoids the
6275 need to free up the newly created id. Change return type
6276 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6277 This can then be used to add extensions to the request.
6278 Deleted OCSP_request_new(), since most of its functionality
6279 is now in OCSP_REQUEST_new() (and the case insensitive name
6280 clash) apart from the ability to set the request name which
6281 will be added elsewhere.
6284 *) Update OCSP API. Remove obsolete extensions argument from
6285 various functions. Extensions are now handled using the new
6286 OCSP extension code. New simple OCSP HTTP function which
6287 can be used to send requests and parse the response.
6290 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6291 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6292 uses the special reorder version of SET OF to sort the attributes
6293 and reorder them to match the encoded order. This resolves a long
6294 standing problem: a verify on a PKCS7 structure just after signing
6295 it used to fail because the attribute order did not match the
6296 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6297 it uses the received order. This is necessary to tolerate some broken
6298 software that does not order SET OF. This is handled by encoding
6299 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6300 to produce the required SET OF.
6303 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6304 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6305 files to get correct declarations of the ASN.1 item variables.
6308 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6309 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6310 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6311 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6312 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6313 ASN1_ITEM and no wrapper functions.
6316 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6317 replace the old function pointer based I/O routines. Change most of
6318 the *_d2i_bio() and *_d2i_fp() functions to use these.
6321 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6322 lines, recognice more "algorithms" that can be deselected, and make
6323 it complain about algorithm deselection that isn't recognised.
6326 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6327 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6328 to use new functions. Add NO_ASN1_OLD which can be set to remove
6329 some old style ASN1 functions: this can be used to determine if old
6330 code will still work when these eventually go away.
6333 *) New extension functions for OCSP structures, these follow the
6334 same conventions as certificates and CRLs.
6337 *) New function X509V3_add1_i2d(). This automatically encodes and
6338 adds an extension. Its behaviour can be customised with various
6339 flags to append, replace or delete. Various wrappers added for
6340 certifcates and CRLs.
6343 *) Fix to avoid calling the underlying ASN1 print routine when
6344 an extension cannot be parsed. Correct a typo in the
6345 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6348 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6349 entries for variables.
6352 *) Add functionality to apps/openssl.c for detecting locking
6353 problems: As the program is single-threaded, all we have
6354 to do is register a locking callback using an array for
6355 storing which locks are currently held by the program.
6358 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6359 SSL_get_ex_data_X509_STORE_idx(), which is used in
6360 ssl_verify_cert_chain() and thus can be called at any time
6361 during TLS/SSL handshakes so that thread-safety is essential.
6362 Unfortunately, the ex_data design is not at all suited
6363 for multi-threaded use, so it probably should be abolished.
6366 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6367 [Broadcom, tweaked and integrated by Geoff Thorpe]
6369 *) Move common extension printing code to new function
6370 X509V3_print_extensions(). Reorganise OCSP print routines and
6371 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6374 *) New function X509_signature_print() to remove duplication in some
6378 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6379 set (this was treated exactly the same as SET OF previously). This
6380 is used to reorder the STACK representing the structure to match the
6381 encoding. This will be used to get round a problem where a PKCS7
6382 structure which was signed could not be verified because the STACK
6383 order did not reflect the encoded order.
6386 *) Reimplement the OCSP ASN1 module using the new code.
6389 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6390 for its ASN1 operations. The old style function pointers still exist
6391 for now but they will eventually go away.
6394 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6395 completely replaces the old ASN1 functionality with a table driven
6396 encoder and decoder which interprets an ASN1_ITEM structure describing
6397 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6398 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6399 has also been converted to the new form.
6402 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6403 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6404 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6405 for negative moduli.
6408 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6409 of not touching the result's sign bit.
6412 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6416 *) Changed the LHASH code to use prototypes for callbacks, and created
6417 macros to declare and implement thin (optionally static) functions
6418 that provide type-safety and avoid function pointer casting for the
6419 type-specific callbacks.
6422 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6424 [Veers Staats <staatsvr@asc.hpc.mil>,
6425 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6427 *) Reformat the FAQ so the different questions and answers can be divided
6428 in sections depending on the subject.
6431 *) Have the zlib compression code load ZLIB.DLL dynamically under
6435 *) New function BN_mod_sqrt for computing square roots modulo a prime
6436 (using the probabilistic Tonelli-Shanks algorithm unless
6437 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6438 be handled deterministically).
6439 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6441 *) Make BN_mod_inverse faster by explicitly handling small quotients
6442 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6443 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6446 *) New function BN_kronecker.
6449 *) Fix BN_gcd so that it works on negative inputs; the result is
6450 positive unless both parameters are zero.
6451 Previously something reasonably close to an infinite loop was
6452 possible because numbers could be growing instead of shrinking
6453 in the implementation of Euclid's algorithm.
6456 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6457 sign of the number in question.
6459 Fix BN_is_word(a,w) to work correctly for w == 0.
6461 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
6462 because its test if the absolute value of 'a' equals 'w'.
6463 Note that BN_abs_is_word does *not* handle w == 0 reliably;
6464 it exists mostly for use in the implementations of BN_is_zero(),
6465 BN_is_one(), and BN_is_word().
6468 *) New function BN_swap.
6471 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
6472 the exponentiation functions are more likely to produce reasonable
6473 results on negative inputs.
6476 *) Change BN_mod_mul so that the result is always non-negative.
6477 Previously, it could be negative if one of the factors was negative;
6478 I don't think anyone really wanted that behaviour.
6481 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
6482 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
6483 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
6484 and add new functions:
6493 BN_mod_lshift1_quick
6497 These functions always generate non-negative results.
6499 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
6500 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
6502 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
6503 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
6504 be reduced modulo m.
6505 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6508 The following entry accidentally appeared in the CHANGES file
6509 distributed with OpenSSL 0.9.7. The modifications described in
6510 it do *not* apply to OpenSSL 0.9.7.
6512 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6513 was actually never needed) and in BN_mul(). The removal in BN_mul()
6514 required a small change in bn_mul_part_recursive() and the addition
6515 of the functions bn_cmp_part_words(), bn_sub_part_words() and
6516 bn_add_part_words(), which do the same thing as bn_cmp_words(),
6517 bn_sub_words() and bn_add_words() except they take arrays with
6522 *) In 'openssl passwd', verify passwords read from the terminal
6523 unless the '-salt' option is used (which usually means that
6524 verification would just waste user's time since the resulting
6525 hash is going to be compared with some given password hash)
6526 or the new '-noverify' option is used.
6528 This is an incompatible change, but it does not affect
6529 non-interactive use of 'openssl passwd' (passwords on the command
6530 line, '-stdin' option, '-in ...' option) and thus should not
6534 *) Remove all references to RSAref, since there's no more need for it.
6537 *) Make DSO load along a path given through an environment variable
6538 (SHLIB_PATH) with shl_load().
6541 *) Constify the ENGINE code as a result of BIGNUM constification.
6542 Also constify the RSA code and most things related to it. In a
6543 few places, most notable in the depth of the ASN.1 code, ugly
6544 casts back to non-const were required (to be solved at a later
6548 *) Make it so the openssl application has all engines loaded by default.
6551 *) Constify the BIGNUM routines a little more.
6554 *) Add the following functions:
6556 ENGINE_load_cswift()
6558 ENGINE_load_atalla()
6560 ENGINE_load_builtin_engines()
6562 That way, an application can itself choose if external engines that
6563 are built-in in OpenSSL shall ever be used or not. The benefit is
6564 that applications won't have to be linked with libdl or other dso
6565 libraries unless it's really needed.
6567 Changed 'openssl engine' to load all engines on demand.
6568 Changed the engine header files to avoid the duplication of some
6569 declarations (they differed!).
6572 *) 'openssl engine' can now list capabilities.
6575 *) Better error reporting in 'openssl engine'.
6578 *) Never call load_dh_param(NULL) in s_server.
6581 *) Add engine application. It can currently list engines by name and
6582 identity, and test if they are actually available.
6585 *) Improve RPM specification file by forcing symbolic linking and making
6586 sure the installed documentation is also owned by root.root.
6587 [Damien Miller <djm@mindrot.org>]
6589 *) Give the OpenSSL applications more possibilities to make use of
6590 keys (public as well as private) handled by engines.
6593 *) Add OCSP code that comes from CertCo.
6596 *) Add VMS support for the Rijndael code.
6599 *) Added untested support for Nuron crypto accelerator.
6602 *) Add support for external cryptographic devices. This code was
6603 previously distributed separately as the "engine" branch.
6604 [Geoff Thorpe, Richard Levitte]
6606 *) Rework the filename-translation in the DSO code. It is now possible to
6607 have far greater control over how a "name" is turned into a filename
6608 depending on the operating environment and any oddities about the
6609 different shared library filenames on each system.
6612 *) Support threads on FreeBSD-elf in Configure.
6615 *) Fix for SHA1 assembly problem with MASM: it produces
6616 warnings about corrupt line number information when assembling
6617 with debugging information. This is caused by the overlapping
6619 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6622 NCONF_get_number() has no error checking at all. As a replacement,
6623 NCONF_get_number_e() is defined (_e for "error checking") and is
6624 promoted strongly. The old NCONF_get_number is kept around for
6625 binary backward compatibility.
6626 Make it possible for methods to load from something other than a BIO,
6627 by providing a function pointer that is given a name instead of a BIO.
6628 For example, this could be used to load configuration data from an
6632 *) Fix for non blocking accept BIOs. Added new I/O special reason
6633 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6634 with non blocking I/O was not possible because no retry code was
6635 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6639 *) Added the beginnings of Rijndael support.
6642 *) Fix for bug in DirectoryString mask setting. Add support for
6643 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6644 to allow certificate printing to more controllable, additional
6645 'certopt' option to 'x509' to allow new printing options to be
6649 *) Clean old EAY MD5 hack from e_os.h.
6652 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6654 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6655 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6656 [Joe Orton, Steve Henson]
6658 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6660 *) Fix additional bug revealed by the NISCC test suite:
6662 Stop bug triggering large recursion when presented with
6663 certain ASN.1 tags (CVE-2003-0851)
6666 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6668 *) Fix various bugs revealed by running the NISCC test suite:
6670 Stop out of bounds reads in the ASN1 code when presented with
6671 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6673 If verify callback ignores invalid public key errors don't try to check
6674 certificate signature with the NULL public key.
6678 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6679 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6683 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6684 extra data after the compression methods not only for TLS 1.0
6685 but also for SSL 3.0 (as required by the specification).
6686 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6688 *) Change X509_certificate_type() to mark the key as exported/exportable
6689 when it's 512 *bits* long, not 512 bytes.
6692 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6694 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6695 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6696 a protocol version number mismatch like a decryption error
6697 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6700 *) Turn on RSA blinding by default in the default implementation
6701 to avoid a timing attack. Applications that don't want it can call
6702 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6703 They would be ill-advised to do so in most cases.
6704 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6706 *) Change RSA blinding code so that it works when the PRNG is not
6707 seeded (in this case, the secret RSA exponent is abused as
6708 an unpredictable seed -- if it is not unpredictable, there
6709 is no point in blinding anyway). Make RSA blinding thread-safe
6710 by remembering the creator's thread ID in rsa->blinding and
6711 having all other threads use local one-time blinding factors
6712 (this requires more computation than sharing rsa->blinding, but
6713 avoids excessive locking; and if an RSA object is not shared
6714 between threads, blinding will still be very fast).
6717 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6719 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6720 via timing by performing a MAC computation even if incorrrect
6721 block cipher padding has been found. This is a countermeasure
6722 against active attacks where the attacker has to distinguish
6723 between bad padding and a MAC verification error. (CVE-2003-0078)
6725 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6726 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6727 Martin Vuagnoux (EPFL, Ilion)]
6729 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6731 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6732 memory from it's contents. This is done with a counter that will
6733 place alternating values in each byte. This can be used to solve
6734 two issues: 1) the removal of calls to memset() by highly optimizing
6735 compilers, and 2) cleansing with other values than 0, since those can
6736 be read through on certain media, for example a swap space on disk.
6739 *) Bugfix: client side session caching did not work with external caching,
6740 because the session->cipher setting was not restored when reloading
6741 from the external cache. This problem was masked, when
6742 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6743 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6746 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6747 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6748 [Zeev Lieber <zeev-l@yahoo.com>]
6750 *) Undo an undocumented change introduced in 0.9.6e which caused
6751 repeated calls to OpenSSL_add_all_ciphers() and
6752 OpenSSL_add_all_digests() to be ignored, even after calling
6756 *) Change the default configuration reader to deal with last line not
6757 being properly terminated.
6760 *) Change X509_NAME_cmp() so it applies the special rules on handling
6761 DN values that are of type PrintableString, as well as RDNs of type
6762 emailAddress where the value has the type ia5String.
6763 [stefank@valicert.com via Richard Levitte]
6765 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6766 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6767 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6768 the bitwise-OR of the two for use by the majority of applications
6769 wanting this behaviour, and update the docs. The documented
6770 behaviour and actual behaviour were inconsistent and had been
6771 changing anyway, so this is more a bug-fix than a behavioural
6773 [Geoff Thorpe, diagnosed by Nadav Har'El]
6775 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6776 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6779 *) Fix initialization code race conditions in
6780 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6781 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6782 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6783 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6784 ssl2_get_cipher_by_char(),
6785 ssl3_get_cipher_by_char().
6786 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6788 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6789 the cached sessions are flushed, as the remove_cb() might use ex_data
6790 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6791 (see [openssl.org #212]).
6792 [Geoff Thorpe, Lutz Jaenicke]
6794 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6795 length, instead of the encoding length to d2i_ASN1_OBJECT.
6798 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6800 *) [In 0.9.6g-engine release:]
6801 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6802 [Lynn Gazis <lgazis@rainbow.com>]
6804 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6806 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6807 and get fix the header length calculation.
6808 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6809 Alon Kantor <alonk@checkpoint.com> (and others),
6812 *) Use proper error handling instead of 'assertions' in buffer
6813 overflow checks added in 0.9.6e. This prevents DoS (the
6814 assertions could call abort()).
6815 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6817 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6819 *) Add various sanity checks to asn1_get_length() to reject
6820 the ASN1 length bytes if they exceed sizeof(long), will appear
6821 negative or the content length exceeds the length of the
6823 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6825 *) Fix cipher selection routines: ciphers without encryption had no flags
6826 for the cipher strength set and where therefore not handled correctly
6827 by the selection routines (PR #130).
6830 *) Fix EVP_dsa_sha macro.
6834 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6835 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6836 that was added in OpenSSL 0.9.6d.
6838 As the countermeasure turned out to be incompatible with some
6839 broken SSL implementations, the new option is part of SSL_OP_ALL.
6840 SSL_OP_ALL is usually employed when compatibility with weird SSL
6841 implementations is desired (e.g. '-bugs' option to 's_client' and
6842 's_server'), so the new option is automatically set in many
6846 *) Changes in security patch:
6848 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6849 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6850 Air Force Materiel Command, USAF, under agreement number
6853 *) Add various sanity checks to asn1_get_length() to reject
6854 the ASN1 length bytes if they exceed sizeof(long), will appear
6855 negative or the content length exceeds the length of the
6856 supplied buffer. (CVE-2002-0659)
6857 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6859 *) Assertions for various potential buffer overflows, not known to
6861 [Ben Laurie (CHATS)]
6863 *) Various temporary buffers to hold ASCII versions of integers were
6864 too small for 64 bit platforms. (CVE-2002-0655)
6865 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6867 *) Remote buffer overflow in SSL3 protocol - an attacker could
6868 supply an oversized session ID to a client. (CVE-2002-0656)
6869 [Ben Laurie (CHATS)]
6871 *) Remote buffer overflow in SSL2 protocol - an attacker could
6872 supply an oversized client master key. (CVE-2002-0656)
6873 [Ben Laurie (CHATS)]
6875 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6877 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6878 encoded as NULL) with id-dsa-with-sha1.
6879 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6881 *) Check various X509_...() return values in apps/req.c.
6882 [Nils Larsch <nla@trustcenter.de>]
6884 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6885 an end-of-file condition would erronously be flagged, when the CRLF
6886 was just at the end of a processed block. The bug was discovered when
6887 processing data through a buffering memory BIO handing the data to a
6888 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6889 <ptsekov@syntrex.com> and Nedelcho Stanev.
6892 *) Implement a countermeasure against a vulnerability recently found
6893 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6894 before application data chunks to avoid the use of known IVs
6895 with data potentially chosen by the attacker.
6898 *) Fix length checks in ssl3_get_client_hello().
6901 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6902 to prevent ssl3_read_internal() from incorrectly assuming that
6903 ssl3_read_bytes() found application data while handshake
6904 processing was enabled when in fact s->s3->in_read_app_data was
6905 merely automatically cleared during the initial handshake.
6906 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6908 *) Fix object definitions for Private and Enterprise: they were not
6909 recognized in their shortname (=lowercase) representation. Extend
6910 obj_dat.pl to issue an error when using undefined keywords instead
6911 of silently ignoring the problem (Svenning Sorensen
6912 <sss@sss.dnsalias.net>).
6915 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6916 generators, i.e. generators other than 2 and 5. (Previously, the
6917 code did not properly initialise the 'add' and 'rem' values to
6918 BN_generate_prime().)
6920 In the new general case, we do not insist that 'generator' is
6921 actually a primitive root: This requirement is rather pointless;
6922 a generator of the order-q subgroup is just as good, if not
6926 *) Map new X509 verification errors to alerts. Discovered and submitted by
6927 Tom Wu <tom@arcot.com>.
6930 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6931 returning non-zero before the data has been completely received
6932 when using non-blocking I/O.
6933 [Bodo Moeller; problem pointed out by John Hughes]
6935 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6936 [Ben Laurie, Lutz Jaenicke]
6938 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6939 Yoram Zahavi <YoramZ@gilian.com>).
6942 *) Add information about CygWin 1.3 and on, and preserve proper
6943 configuration for the versions before that.
6944 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6946 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6947 check whether we deal with a copy of a session and do not delete from
6948 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6949 <izhar@checkpoint.com>.
6952 *) Do not store session data into the internal session cache, if it
6953 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6954 flag is set). Proposed by Aslam <aslam@funk.com>.
6957 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6961 *) [In 0.9.6d-engine release:]
6962 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6963 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6965 *) Add the configuration target linux-s390x.
6966 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6968 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6969 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6970 variable as an indication that a ClientHello message has been
6971 received. As the flag value will be lost between multiple
6972 invocations of ssl3_accept when using non-blocking I/O, the
6973 function may not be aware that a handshake has actually taken
6974 place, thus preventing a new session from being added to the
6977 To avoid this problem, we now set s->new_session to 2 instead of
6978 using a local variable.
6979 [Lutz Jaenicke, Bodo Moeller]
6981 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6982 if the SSL_R_LENGTH_MISMATCH error is detected.
6983 [Geoff Thorpe, Bodo Moeller]
6985 *) New 'shared_ldflag' column in Configure platform table.
6988 *) Fix EVP_CIPHER_mode macro.
6989 ["Dan S. Camper" <dan@bti.net>]
6991 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6992 type, we must throw them away by setting rr->length to 0.
6993 [D P Chang <dpc@qualys.com>]
6995 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6997 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6998 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6999 worked incorrectly for those cases where range = 10..._2 and
7000 3*range is two bits longer than range.)
7003 *) Only add signing time to PKCS7 structures if it is not already
7007 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
7008 OBJ_ld_ce should be OBJ_id_ce.
7009 Also some ip-pda OIDs in crypto/objects/objects.txt were
7010 incorrect (cf. RFC 3039).
7011 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
7013 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
7014 returns early because it has nothing to do.
7015 [Andy Schneider <andy.schneider@bjss.co.uk>]
7017 *) [In 0.9.6c-engine release:]
7018 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
7019 [Andy Schneider <andy.schneider@bjss.co.uk>]
7021 *) [In 0.9.6c-engine release:]
7022 Add support for Cryptographic Appliance's keyserver technology.
7023 (Use engine 'keyclient')
7024 [Cryptographic Appliances and Geoff Thorpe]
7026 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
7027 is called via tools/c89.sh because arguments have to be
7028 rearranged (all '-L' options must appear before the first object
7030 [Richard Shapiro <rshapiro@abinitio.com>]
7032 *) [In 0.9.6c-engine release:]
7033 Add support for Broadcom crypto accelerator cards, backported
7035 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
7037 *) [In 0.9.6c-engine release:]
7038 Add support for SureWare crypto accelerator cards from
7039 Baltimore Technologies. (Use engine 'sureware')
7040 [Baltimore Technologies and Mark Cox]
7042 *) [In 0.9.6c-engine release:]
7043 Add support for crypto accelerator cards from Accelerated
7044 Encryption Processing, www.aep.ie. (Use engine 'aep')
7045 [AEP Inc. and Mark Cox]
7047 *) Add a configuration entry for gcc on UnixWare.
7048 [Gary Benson <gbenson@redhat.com>]
7050 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
7051 messages are stored in a single piece (fixed-length part and
7052 variable-length part combined) and fix various bugs found on the way.
7055 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
7056 instead. BIO_gethostbyname() does not know what timeouts are
7057 appropriate, so entries would stay in cache even when they have
7059 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
7061 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
7062 faced with a pathologically small ClientHello fragment that does
7063 not contain client_version: Instead of aborting with an error,
7064 simply choose the highest available protocol version (i.e.,
7065 TLS 1.0 unless it is disabled). In practice, ClientHello
7066 messages are never sent like this, but this change gives us
7067 strictly correct behaviour at least for TLS.
7070 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
7071 never resets s->method to s->ctx->method when called from within
7072 one of the SSL handshake functions.
7073 [Bodo Moeller; problem pointed out by Niko Baric]
7075 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
7076 (sent using the client's version number) if client_version is
7077 smaller than the protocol version in use. Also change
7078 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
7079 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
7080 the client will at least see that alert.
7083 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7087 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7088 client receives HelloRequest while in a handshake.
7089 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7091 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7092 should end in 'break', not 'goto end' which circumvents various
7093 cleanups done in state SSL_ST_OK. But session related stuff
7094 must be disabled for SSL_ST_OK in the case that we just sent a
7097 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7098 before just sending a HelloRequest.
7099 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7101 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7102 reveal whether illegal block cipher padding was found or a MAC
7103 verification error occured. (Neither SSLerr() codes nor alerts
7104 are directly visible to potential attackers, but the information
7105 may leak via logfiles.)
7107 Similar changes are not required for the SSL 2.0 implementation
7108 because the number of padding bytes is sent in clear for SSL 2.0,
7109 and the extra bytes are just ignored. However ssl/s2_pkt.c
7110 failed to verify that the purported number of padding bytes is in
7114 *) Add OpenUNIX-8 support including shared libraries
7115 (Boyd Lynn Gerber <gerberb@zenez.com>).
7118 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7119 'wristwatch attack' using huge encoding parameters (cf.
7120 James H. Manger's CRYPTO 2001 paper). Note that the
7121 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7122 encoding parameters and hence was not vulnerable.
7125 *) BN_sqr() bug fix.
7126 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7128 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7129 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7130 followed by modular reduction.
7131 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7133 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7134 equivalent based on BN_pseudo_rand() instead of BN_rand().
7137 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7138 This function was broken, as the check for a new client hello message
7139 to handle SGC did not allow these large messages.
7140 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7143 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7146 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7147 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7150 *) Rework the configuration and shared library support for Tru64 Unix.
7151 The configuration part makes use of modern compiler features and
7152 still retains old compiler behavior for those that run older versions
7153 of the OS. The shared library support part includes a variant that
7154 uses the RPATH feature, and is available through the special
7155 configuration target "alpha-cc-rpath", which will never be selected
7157 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7159 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7160 with the same message size as in ssl3_get_certificate_request().
7161 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7162 messages might inadvertently be reject as too long.
7163 [Petr Lampa <lampa@fee.vutbr.cz>]
7165 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7168 *) Modified SSL library such that the verify_callback that has been set
7169 specificly for an SSL object with SSL_set_verify() is actually being
7170 used. Before the change, a verify_callback set with this function was
7171 ignored and the verify_callback() set in the SSL_CTX at the time of
7172 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7173 to allow the necessary settings.
7176 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7177 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7178 done automatically (in contradiction to the requirements of the C
7179 standard). This made problems when used from OpenSSH.
7182 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7183 dh->length and always used
7185 BN_rand_range(priv_key, dh->p).
7187 BN_rand_range() is not necessary for Diffie-Hellman, and this
7188 specific range makes Diffie-Hellman unnecessarily inefficient if
7189 dh->length (recommended exponent length) is much smaller than the
7190 length of dh->p. We could use BN_rand_range() if the order of
7191 the subgroup was stored in the DH structure, but we only have
7196 BN_rand(priv_key, l, ...)
7198 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7204 RSA_eay_public_encrypt
7205 RSA_eay_private_decrypt
7206 RSA_eay_private_encrypt (signing)
7207 RSA_eay_public_decrypt (signature verification)
7209 (default implementations for RSA_public_encrypt,
7210 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7211 always reject numbers >= n.
7214 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7215 to synchronize access to 'locking_thread'. This is necessary on
7216 systems where access to 'locking_thread' (an 'unsigned long'
7217 variable) is not atomic.
7220 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7221 *before* setting the 'crypto_lock_rand' flag. The previous code had
7222 a race condition if 0 is a valid thread ID.
7223 [Travis Vitek <vitek@roguewave.com>]
7225 *) Add support for shared libraries under Irix.
7226 [Albert Chin-A-Young <china@thewrittenword.com>]
7228 *) Add configuration option to build on Linux on both big-endian and
7230 [Ralf Baechle <ralf@uni-koblenz.de>]
7232 *) Add the possibility to create shared libraries on HP-UX.
7235 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7237 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7238 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7239 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7240 PRNG state recovery was possible based on the output of
7241 one PRNG request appropriately sized to gain knowledge on
7242 'md' followed by enough consecutive 1-byte PRNG requests
7243 to traverse all of 'state'.
7245 1. When updating 'md_local' (the current thread's copy of 'md')
7246 during PRNG output generation, hash all of the previous
7247 'md_local' value, not just the half used for PRNG output.
7249 2. Make the number of bytes from 'state' included into the hash
7250 independent from the number of PRNG bytes requested.
7252 The first measure alone would be sufficient to avoid
7253 Markku-Juhani's attack. (Actually it had never occurred
7254 to me that the half of 'md_local' used for chaining was the
7255 half from which PRNG output bytes were taken -- I had always
7256 assumed that the secret half would be used.) The second
7257 measure makes sure that additional data from 'state' is never
7258 mixed into 'md_local' in small portions; this heuristically
7259 further strengthens the PRNG.
7262 *) Fix crypto/bn/asm/mips3.s.
7265 *) When only the key is given to "enc", the IV is undefined. Print out
7266 an error message in this case.
7269 *) Handle special case when X509_NAME is empty in X509 printing routines.
7272 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7273 positive and less than q.
7276 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7277 used: it isn't thread safe and the add_lock_callback should handle
7279 [Paul Rose <Paul.Rose@bridge.com>]
7281 *) Verify that incoming data obeys the block size in
7282 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7286 [Ulf Möller, Bodo Möller]
7288 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7289 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7290 when fixing the server behaviour for backwards-compatible 'client
7291 hello' messages. (Note that the attack is impractical against
7292 SSL 3.0 and TLS 1.0 anyway because length and version checking
7293 means that the probability of guessing a valid ciphertext is
7294 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7297 Before 0.9.5, the countermeasure (hide the error by generating a
7298 random 'decryption result') did not work properly because
7299 ERR_clear_error() was missing, meaning that SSL_get_error() would
7300 detect the supposedly ignored error.
7302 Both problems are now fixed.
7305 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7306 (previously it was 1024).
7309 *) Fix for compatibility mode trust settings: ignore trust settings
7310 unless some valid trust or reject settings are present.
7313 *) Fix for blowfish EVP: its a variable length cipher.
7316 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7317 parameters in DSA public key structures and return an error in the
7318 DSA routines if parameters are absent.
7321 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7322 in the current directory if neither $RANDFILE nor $HOME was set.
7323 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7324 caused some confusion to Windows users who haven't defined $HOME.
7325 Thus RAND_file_name() is changed again: e_os.h can define a
7326 DEFAULT_HOME, which will be used if $HOME is not set.
7327 For Windows, we use "C:"; on other platforms, we still require
7328 environment variables.
7330 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7331 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7332 having multiple threads call RAND_poll() concurrently.
7335 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7336 combination of a flag and a thread ID variable.
7337 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7338 flag), *other* threads can enter ssleay_add_bytes without obeying
7339 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7340 that they do not hold after the first thread unsets add_do_not_lock).
7343 *) Change bctest again: '-x' expressions are not available in all
7347 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7349 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7350 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7352 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7353 the default extension for executables, if any. Also, make the perl
7354 scripts that use symlink() to test if it really exists and use "cp"
7355 if it doesn't. All this made OpenSSL compilable and installable in
7359 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7360 If SEQUENCE is length is indefinite just set c->slen to the total
7361 amount of data available.
7362 [Steve Henson, reported by shige@FreeBSD.org]
7363 [This change does not apply to 0.9.7.]
7365 *) Change bctest to avoid here-documents inside command substitution
7366 (workaround for FreeBSD /bin/sh bug).
7367 For compatibility with Ultrix, avoid shell functions (introduced
7368 in the bctest version that searches along $PATH).
7371 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7372 with des_encrypt() defined on some operating systems, like Solaris
7376 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7377 On the Importance of Eliminating Errors in Cryptographic
7378 Computations, J. Cryptology 14 (2001) 2, 101-119,
7379 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7382 *) MIPS assembler BIGNUM division bug fix.
7385 *) Disabled incorrect Alpha assembler code.
7388 *) Fix PKCS#7 decode routines so they correctly update the length
7389 after reading an EOC for the EXPLICIT tag.
7391 [This change does not apply to 0.9.7.]
7393 *) Fix bug in PKCS#12 key generation routines. This was triggered
7394 if a 3DES key was generated with a 0 initial byte. Include
7395 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7396 (but broken) behaviour.
7399 *) Enhance bctest to search for a working bc along $PATH and print
7401 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7403 *) Fix memory leaks in err.c: free err_data string if necessary;
7404 don't write to the wrong index in ERR_set_error_data.
7407 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7411 *) Replace rdtsc with _emit statements for VC++ version 5.
7412 [Jeremy Cooper <jeremy@baymoo.org>]
7414 *) Make it possible to reuse SSLv2 sessions.
7417 *) In copy_email() check for >= 0 as a return value for
7418 X509_NAME_get_index_by_NID() since 0 is a valid index.
7419 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7421 *) Avoid coredump with unsupported or invalid public keys by checking if
7422 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7423 PKCS7_verify() fails with non detached data.
7426 *) Don't use getenv in library functions when run as setuid/setgid.
7427 New function OPENSSL_issetugid().
7430 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7431 due to incorrect handling of multi-threading:
7433 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7435 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7437 3. Count how many times MemCheck_off() has been called so that
7438 nested use can be treated correctly. This also avoids
7439 inband-signalling in the previous code (which relied on the
7440 assumption that thread ID 0 is impossible).
7443 *) Add "-rand" option also to s_client and s_server.
7446 *) Fix CPU detection on Irix 6.x.
7447 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7448 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7450 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7453 [This change does not apply to 0.9.7.]
7455 *) Use the cached encoding of an X509_NAME structure rather than
7456 copying it. This is apparently the reason for the libsafe "errors"
7457 but the code is actually correct.
7460 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7461 Bleichenbacher's DSA attack.
7462 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
7463 to be set and top=0 forces the highest bit to be set; top=-1 is new
7464 and leaves the highest bit random.
7465 [Ulf Moeller, Bodo Moeller]
7467 *) In the NCONF_...-based implementations for CONF_... queries
7468 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
7469 a temporary CONF structure with the data component set to NULL
7470 (which gives segmentation faults in lh_retrieve).
7471 Instead, use NULL for the CONF pointer in CONF_get_string and
7472 CONF_get_number (which may use environment variables) and directly
7473 return NULL from CONF_get_section.
7476 *) Fix potential buffer overrun for EBCDIC.
7479 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
7480 keyUsage if basicConstraints absent for a CA.
7483 *) Make SMIME_write_PKCS7() write mail header values with a format that
7484 is more generally accepted (no spaces before the semicolon), since
7485 some programs can't parse those values properly otherwise. Also make
7486 sure BIO's that break lines after each write do not create invalid
7490 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
7491 macros previously used would not encode an empty SEQUENCE OF
7492 and break the signature.
7494 [This change does not apply to 0.9.7.]
7496 *) Zero the premaster secret after deriving the master secret in
7500 *) Add some EVP_add_digest_alias registrations (as found in
7501 OpenSSL_add_all_digests()) to SSL_library_init()
7502 aka OpenSSL_add_ssl_algorithms(). This provides improved
7503 compatibility with peers using X.509 certificates
7504 with unconventional AlgorithmIdentifier OIDs.
7507 *) Fix for Irix with NO_ASM.
7508 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7510 *) ./config script fixes.
7511 [Ulf Moeller, Richard Levitte]
7513 *) Fix 'openssl passwd -1'.
7516 *) Change PKCS12_key_gen_asc() so it can cope with non null
7517 terminated strings whose length is passed in the passlen
7518 parameter, for example from PEM callbacks. This was done
7519 by adding an extra length parameter to asc2uni().
7520 [Steve Henson, reported by <oddissey@samsung.co.kr>]
7522 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
7523 call failed, free the DSA structure.
7526 *) Fix to uni2asc() to cope with zero length Unicode strings.
7527 These are present in some PKCS#12 files.
7530 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
7531 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
7532 when writing a 32767 byte record.
7533 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
7535 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
7536 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
7538 (RSA objects have a reference count access to which is protected
7539 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
7540 so they are meant to be shared between threads.)
7541 [Bodo Moeller, Geoff Thorpe; original patch submitted by
7542 "Reddie, Steven" <Steven.Reddie@ca.com>]
7544 *) Fix a deadlock in CRYPTO_mem_leaks().
7547 *) Use better test patterns in bntest.
7550 *) rand_win.c fix for Borland C.
7553 *) BN_rshift bugfix for n == 0.
7556 *) Add a 'bctest' script that checks for some known 'bc' bugs
7557 so that 'make test' does not abort just because 'bc' is broken.
7560 *) Store verify_result within SSL_SESSION also for client side to
7561 avoid potential security hole. (Re-used sessions on the client side
7562 always resulted in verify_result==X509_V_OK, not using the original
7563 result of the server certificate verification.)
7566 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
7567 SSL3_RT_APPLICATION_DATA, return 0.
7568 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
7572 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
7573 releases, have been re-implemented by renaming the previous
7574 implementations of ssl2_read and ssl3_read to ssl2_read_internal
7575 and ssl3_read_internal, respectively, and adding 'peek' parameters
7576 to them. The new ssl[23]_{read,peek} functions are calls to
7577 ssl[23]_read_internal with the 'peek' flag set appropriately.
7578 A 'peek' parameter has also been added to ssl3_read_bytes, which
7579 does the actual work for ssl3_read_internal.
7582 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7583 the method-specific "init()" handler. Also clean up ex_data after
7584 calling the method-specific "finish()" handler. Previously, this was
7585 happening the other way round.
7588 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7589 The previous value, 12, was not always sufficient for BN_mod_exp().
7592 *) Make sure that shared libraries get the internal name engine with
7593 the full version number and not just 0. This should mark the
7594 shared libraries as not backward compatible. Of course, this should
7595 be changed again when we can guarantee backward binary compatibility.
7598 *) Fix typo in get_cert_by_subject() in by_dir.c
7599 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7601 *) Rework the system to generate shared libraries:
7603 - Make note of the expected extension for the shared libraries and
7604 if there is a need for symbolic links from for example libcrypto.so.0
7605 to libcrypto.so.0.9.7. There is extended info in Configure for
7608 - Make as few rebuilds of the shared libraries as possible.
7610 - Still avoid linking the OpenSSL programs with the shared libraries.
7612 - When installing, install the shared libraries separately from the
7616 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7618 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7619 and not in SSL_clear because the latter is also used by the
7620 accept/connect functions; previously, the settings made by
7621 SSL_set_read_ahead would be lost during the handshake.
7622 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7624 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7625 Previously, it would create entries for disableed algorithms no
7629 *) Added several new manual pages for SSL_* function.
7632 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7634 *) In ssl23_get_client_hello, generate an error message when faced
7635 with an initial SSL 3.0/TLS record that is too small to contain the
7636 first two bytes of the ClientHello message, i.e. client_version.
7637 (Note that this is a pathologic case that probably has never happened
7638 in real life.) The previous approach was to use the version number
7639 from the record header as a substitute; but our protocol choice
7640 should not depend on that one because it is not authenticated
7641 by the Finished messages.
7644 *) More robust randomness gathering functions for Windows.
7645 [Jeffrey Altman <jaltman@columbia.edu>]
7647 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7648 not set then we don't setup the error code for issuer check errors
7649 to avoid possibly overwriting other errors which the callback does
7650 handle. If an application does set the flag then we assume it knows
7651 what it is doing and can handle the new informational codes
7655 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7656 a general "ANY" type, as such it should be able to decode anything
7657 including tagged types. However it didn't check the class so it would
7658 wrongly interpret tagged types in the same way as their universal
7659 counterpart and unknown types were just rejected. Changed so that the
7660 tagged and unknown types are handled in the same way as a SEQUENCE:
7661 that is the encoding is stored intact. There is also a new type
7662 "V_ASN1_OTHER" which is used when the class is not universal, in this
7663 case we have no idea what the actual type is so we just lump them all
7667 *) On VMS, stdout may very well lead to a file that is written to
7668 in a record-oriented fashion. That means that every write() will
7669 write a separate record, which will be read separately by the
7670 programs trying to read from it. This can be very confusing.
7672 The solution is to put a BIO filter in the way that will buffer
7673 text until a linefeed is reached, and then write everything a
7674 line at a time, so every record written will be an actual line,
7675 not chunks of lines and not (usually doesn't happen, but I've
7676 seen it once) several lines in one record. BIO_f_linebuffer() is
7679 Currently, it's a VMS-only method, because that's where it has
7680 been tested well enough.
7683 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7684 it can return incorrect results.
7685 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7686 but it was in 0.9.6-beta[12].)
7689 *) Disable the check for content being present when verifying detached
7690 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7691 include zero length content when signing messages.
7694 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7695 BIO_ctrl (for BIO pairs).
7698 *) Add DSO method for VMS.
7701 *) Bug fix: Montgomery multiplication could produce results with the
7705 *) Add RPM specification openssl.spec and modify it to build three
7706 packages. The default package contains applications, application
7707 documentation and run-time libraries. The devel package contains
7708 include files, static libraries and function documentation. The
7709 doc package contains the contents of the doc directory. The original
7710 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7713 *) Add a large number of documentation files for many SSL routines.
7714 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7716 *) Add a configuration entry for Sony News 4.
7717 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7719 *) Don't set the two most significant bits to one when generating a
7720 random number < q in the DSA library.
7723 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7724 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7725 the underlying transport is blocking) if a handshake took place.
7726 (The default behaviour is needed by applications such as s_client
7727 and s_server that use select() to determine when to use SSL_read;
7728 but for applications that know in advance when to expect data, it
7729 just makes things more complicated.)
7732 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7736 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7737 work better on such systems.
7738 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7740 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7741 Update PKCS12_parse() so it copies the friendlyName and the
7742 keyid to the certificates aux info.
7745 *) Fix bug in PKCS7_verify() which caused an infinite loop
7746 if there was more than one signature.
7747 [Sven Uszpelkat <su@celocom.de>]
7749 *) Major change in util/mkdef.pl to include extra information
7750 about each symbol, as well as presenting variables as well
7751 as functions. This change means that there's n more need
7752 to rebuild the .num files when some algorithms are excluded.
7755 *) Allow the verify time to be set by an application,
7756 rather than always using the current time.
7759 *) Phase 2 verify code reorganisation. The certificate
7760 verify code now looks up an issuer certificate by a
7761 number of criteria: subject name, authority key id
7762 and key usage. It also verifies self signed certificates
7763 by the same criteria. The main comparison function is
7764 X509_check_issued() which performs these checks.
7766 Lot of changes were necessary in order to support this
7767 without completely rewriting the lookup code.
7769 Authority and subject key identifier are now cached.
7771 The LHASH 'certs' is X509_STORE has now been replaced
7772 by a STACK_OF(X509_OBJECT). This is mainly because an
7773 LHASH can't store or retrieve multiple objects with
7774 the same hash value.
7776 As a result various functions (which were all internal
7777 use only) have changed to handle the new X509_STORE
7778 structure. This will break anything that messed round
7779 with X509_STORE internally.
7781 The functions X509_STORE_add_cert() now checks for an
7782 exact match, rather than just subject name.
7784 The X509_STORE API doesn't directly support the retrieval
7785 of multiple certificates matching a given criteria, however
7786 this can be worked round by performing a lookup first
7787 (which will fill the cache with candidate certificates)
7788 and then examining the cache for matches. This is probably
7789 the best we can do without throwing out X509_LOOKUP
7790 entirely (maybe later...).
7792 The X509_VERIFY_CTX structure has been enhanced considerably.
7794 All certificate lookup operations now go via a get_issuer()
7795 callback. Although this currently uses an X509_STORE it
7796 can be replaced by custom lookups. This is a simple way
7797 to bypass the X509_STORE hackery necessary to make this
7798 work and makes it possible to use more efficient techniques
7799 in future. A very simple version which uses a simple
7800 STACK for its trusted certificate store is also provided
7801 using X509_STORE_CTX_trusted_stack().
7803 The verify_cb() and verify() callbacks now have equivalents
7804 in the X509_STORE_CTX structure.
7806 X509_STORE_CTX also has a 'flags' field which can be used
7807 to customise the verify behaviour.
7810 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7811 excludes S/MIME capabilities.
7814 *) When a certificate request is read in keep a copy of the
7815 original encoding of the signed data and use it when outputing
7816 again. Signatures then use the original encoding rather than
7817 a decoded, encoded version which may cause problems if the
7818 request is improperly encoded.
7821 *) For consistency with other BIO_puts implementations, call
7822 buffer_write(b, ...) directly in buffer_puts instead of calling
7825 In BIO_puts, increment b->num_write as in BIO_write.
7826 [Peter.Sylvester@EdelWeb.fr]
7828 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7829 BN_zero, we may not return a BIGNUM with an array consisting of
7833 *) Avoid calling abort() from within the library when problems are
7834 detected, except if preprocessor symbols have been defined
7835 (such as REF_CHECK, BN_DEBUG etc.).
7838 *) New openssl application 'rsautl'. This utility can be
7839 used for low level RSA operations. DER public key
7840 BIO/fp routines also added.
7843 *) New Configure entry and patches for compiling on QNX 4.
7844 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7846 *) A demo state-machine implementation was sponsored by
7847 Nuron (http://www.nuron.com/) and is now available in
7848 demos/state_machine.
7851 *) New options added to the 'dgst' utility for signature
7852 generation and verification.
7855 *) Unrecognized PKCS#7 content types are now handled via a
7856 catch all ASN1_TYPE structure. This allows unsupported
7857 types to be stored as a "blob" and an application can
7858 encode and decode it manually.
7861 *) Fix various signed/unsigned issues to make a_strex.c
7863 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7865 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7866 length if passed a buffer. ASN1_INTEGER_to_BN failed
7867 if passed a NULL BN and its argument was negative.
7868 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7870 *) Modification to PKCS#7 encoding routines to output definite
7871 length encoding. Since currently the whole structures are in
7872 memory there's not real point in using indefinite length
7873 constructed encoding. However if OpenSSL is compiled with
7874 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7877 *) Added BIO_vprintf() and BIO_vsnprintf().
7880 *) Added more prefixes to parse for in the the strings written
7881 through a logging bio, to cover all the levels that are available
7882 through syslog. The prefixes are now:
7884 PANIC, EMERG, EMR => LOG_EMERG
7885 ALERT, ALR => LOG_ALERT
7886 CRIT, CRI => LOG_CRIT
7887 ERROR, ERR => LOG_ERR
7888 WARNING, WARN, WAR => LOG_WARNING
7889 NOTICE, NOTE, NOT => LOG_NOTICE
7890 INFO, INF => LOG_INFO
7891 DEBUG, DBG => LOG_DEBUG
7893 and as before, if none of those prefixes are present at the
7894 beginning of the string, LOG_ERR is chosen.
7896 On Win32, the LOG_* levels are mapped according to this:
7898 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7899 LOG_WARNING => EVENTLOG_WARNING_TYPE
7900 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7904 *) Made it possible to reconfigure with just the configuration
7905 argument "reconf" or "reconfigure". The command line arguments
7906 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7907 and are retrieved from there when reconfiguring.
7911 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7913 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7916 *) The obj_dat.pl script was messing up the sorting of object
7917 names. The reason was that it compared the quoted version
7918 of strings as a result "OCSP" > "OCSP Signing" because
7919 " > SPACE. Changed script to store unquoted versions of
7920 names and add quotes on output. It was also omitting some
7921 names from the lookup table if they were given a default
7922 value (that is if SN is missing it is given the same
7923 value as LN and vice versa), these are now added on the
7924 grounds that if an object has a name we should be able to
7925 look it up. Finally added warning output when duplicate
7926 short or long names are found.
7929 *) Changes needed for Tandem NSK.
7930 [Scott Uroff <scott@xypro.com>]
7932 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7933 RSA_padding_check_SSLv23(), special padding was never detected
7934 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7935 version rollback attacks was not effective.
7937 In s23_clnt.c, don't use special rollback-attack detection padding
7938 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7939 client; similarly, in s23_srvr.c, don't do the rollback check if
7940 SSL 2.0 is the only protocol enabled in the server.
7943 *) Make it possible to get hexdumps of unprintable data with 'openssl
7944 asn1parse'. By implication, the functions ASN1_parse_dump() and
7945 BIO_dump_indent() are added.
7948 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7949 these print out strings and name structures based on various
7950 flags including RFC2253 support and proper handling of
7951 multibyte characters. Added options to the 'x509' utility
7952 to allow the various flags to be set.
7955 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7956 Also change the functions X509_cmp_current_time() and
7957 X509_gmtime_adj() work with an ASN1_TIME structure,
7958 this will enable certificates using GeneralizedTime in validity
7959 dates to be checked.
7962 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7963 negative public key encodings) on by default,
7964 NO_NEG_PUBKEY_BUG can be set to disable it.
7967 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7968 content octets. An i2c_ASN1_OBJECT is unnecessary because
7969 the encoding can be trivially obtained from the structure.
7972 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7973 not read locks (CRYPTO_r_[un]lock).
7976 *) A first attempt at creating official support for shared
7977 libraries through configuration. I've kept it so the
7978 default is static libraries only, and the OpenSSL programs
7979 are always statically linked for now, but there are
7980 preparations for dynamic linking in place.
7981 This has been tested on Linux and Tru64.
7984 *) Randomness polling function for Win9x, as described in:
7985 Peter Gutmann, Software Generation of Practically Strong
7989 *) Fix so PRNG is seeded in req if using an already existing
7993 *) New options to smime application. -inform and -outform
7994 allow alternative formats for the S/MIME message including
7995 PEM and DER. The -content option allows the content to be
7996 specified separately. This should allow things like Netscape
7997 form signing output easier to verify.
8000 *) Fix the ASN1 encoding of tags using the 'long form'.
8003 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
8004 STRING types. These convert content octets to and from the
8005 underlying type. The actual tag and length octets are
8006 already assumed to have been read in and checked. These
8007 are needed because all other string types have virtually
8008 identical handling apart from the tag. By having versions
8009 of the ASN1 functions that just operate on content octets
8010 IMPLICIT tagging can be handled properly. It also allows
8011 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
8012 and ASN1_INTEGER are identical apart from the tag.
8015 *) Change the handling of OID objects as follows:
8017 - New object identifiers are inserted in objects.txt, following
8018 the syntax given in objects.README.
8019 - objects.pl is used to process obj_mac.num and create a new
8021 - obj_dat.pl is used to create a new obj_dat.h, using the data in
8024 This is currently kind of a hack, and the perl code in objects.pl
8025 isn't very elegant, but it works as I intended. The simplest way
8026 to check that it worked correctly is to look in obj_dat.h and
8027 check the array nid_objs and make sure the objects haven't moved
8028 around (this is important!). Additions are OK, as well as
8029 consistent name changes.
8032 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
8035 *) Addition of the command line parameter '-rand file' to 'openssl req'.
8036 The given file adds to whatever has already been seeded into the
8037 random pool through the RANDFILE configuration file option or
8038 environment variable, or the default random state file.
8041 *) mkstack.pl now sorts each macro group into lexical order.
8042 Previously the output order depended on the order the files
8043 appeared in the directory, resulting in needless rewriting
8047 *) Patches to make OpenSSL compile under Win32 again. Mostly
8048 work arounds for the VC++ problem that it treats func() as
8049 func(void). Also stripped out the parts of mkdef.pl that
8050 added extra typesafe functions: these no longer exist.
8053 *) Reorganisation of the stack code. The macros are now all
8054 collected in safestack.h . Each macro is defined in terms of
8055 a "stack macro" of the form SKM_<name>(type, a, b). The
8056 DEBUG_SAFESTACK is now handled in terms of function casts,
8057 this has the advantage of retaining type safety without the
8058 use of additional functions. If DEBUG_SAFESTACK is not defined
8059 then the non typesafe macros are used instead. Also modified the
8060 mkstack.pl script to handle the new form. Needs testing to see
8061 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
8062 the default if no major problems. Similar behaviour for ASN1_SET_OF
8063 and PKCS12_STACK_OF.
8066 *) When some versions of IIS use the 'NET' form of private key the
8067 key derivation algorithm is different. Normally MD5(password) is
8068 used as a 128 bit RC4 key. In the modified case
8069 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
8070 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
8071 as the old Netscape_RSA functions except they have an additional
8072 'sgckey' parameter which uses the modified algorithm. Also added
8073 an -sgckey command line option to the rsa utility. Thanks to
8074 Adrian Peck <bertie@ncipher.com> for posting details of the modified
8075 algorithm to openssl-dev.
8078 *) The evp_local.h macros were using 'c.##kname' which resulted in
8079 invalid expansion on some systems (SCO 5.0.5 for example).
8080 Corrected to 'c.kname'.
8081 [Phillip Porch <root@theporch.com>]
8083 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8084 a STACK of email addresses from a certificate or request, these look
8085 in the subject name and the subject alternative name extensions and
8086 omit any duplicate addresses.
8089 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8090 This makes DSA verification about 2 % faster.
8093 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8094 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8095 plus overhead for 1024 bit moduli).
8096 This makes exponentiations about 0.5 % faster for 1024 bit
8097 exponents (as measured by "openssl speed rsa2048").
8100 *) Rename memory handling macros to avoid conflicts with other
8102 Malloc => OPENSSL_malloc
8103 Malloc_locked => OPENSSL_malloc_locked
8104 Realloc => OPENSSL_realloc
8105 Free => OPENSSL_free
8108 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8109 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8112 *) CygWin32 support.
8113 [John Jarvie <jjarvie@newsguy.com>]
8115 *) The type-safe stack code has been rejigged. It is now only compiled
8116 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8117 by default all type-specific stack functions are "#define"d back to
8118 standard stack functions. This results in more streamlined output
8119 but retains the type-safety checking possibilities of the original
8123 *) The STACK code has been cleaned up, and certain type declarations
8124 that didn't make a lot of sense have been brought in line. This has
8125 also involved a cleanup of sorts in safestack.h to more correctly
8126 map type-safe stack functions onto their plain stack counterparts.
8127 This work has also resulted in a variety of "const"ifications of
8128 lots of the code, especially "_cmp" operations which should normally
8129 be prototyped with "const" parameters anyway.
8132 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8133 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8134 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8135 where all of 'md' is used each time the PRNG is used, but 'state'
8136 is used only indexed by a cyclic counter. As entropy may not be
8137 well distributed from the beginning, 'md' is important as a
8138 chaining variable. However, the output function chains only half
8139 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8140 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8141 in all of 'state' being rewritten, with the new values depending
8142 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8145 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8146 the handshake is continued after ssl_verify_cert_chain();
8147 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8148 can lead to 'unexplainable' connection aborts later.
8149 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8151 *) Major EVP API cipher revision.
8152 Add hooks for extra EVP features. This allows various cipher
8153 parameters to be set in the EVP interface. Support added for variable
8154 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8155 setting of RC2 and RC5 parameters.
8157 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8160 Remove lots of duplicated code from the EVP library. For example *every*
8161 cipher init() function handles the 'iv' in the same way according to the
8162 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8163 for CFB and OFB modes they zero ctx->num.
8165 New functionality allows removal of S/MIME code RC2 hack.
8167 Most of the routines have the same form and so can be declared in terms
8170 By shifting this to the top level EVP_CipherInit() it can be removed from
8171 all individual ciphers. If the cipher wants to handle IVs or keys
8172 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8175 Change lots of functions like EVP_EncryptUpdate() to now return a
8176 value: although software versions of the algorithms cannot fail
8177 any installed hardware versions can.
8180 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8181 this option is set, tolerate broken clients that send the negotiated
8182 protocol version number instead of the requested protocol version
8186 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8187 i.e. non-zero for export ciphersuites, zero otherwise.
8188 Previous versions had this flag inverted, inconsistent with
8189 rsa_tmp_cb (..._TMP_RSA_CB).
8190 [Bodo Moeller; problem reported by Amit Chopra]
8192 *) Add missing DSA library text string. Work around for some IIS
8193 key files with invalid SEQUENCE encoding.
8196 *) Add a document (doc/standards.txt) that list all kinds of standards
8197 and so on that are implemented in OpenSSL.
8200 *) Enhance c_rehash script. Old version would mishandle certificates
8201 with the same subject name hash and wouldn't handle CRLs at all.
8202 Added -fingerprint option to crl utility, to support new c_rehash
8206 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8209 *) Fix for SSL server purpose checking. Server checking was
8210 rejecting certificates which had extended key usage present
8211 but no ssl client purpose.
8212 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8214 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8215 is a little unclear about how a blank password is handled.
8216 Since the password in encoded as a BMPString with terminating
8217 double NULL a zero length password would end up as just the
8218 double NULL. However no password at all is different and is
8219 handled differently in the PKCS#12 key generation code. NS
8220 treats a blank password as zero length. MSIE treats it as no
8221 password on export: but it will try both on import. We now do
8222 the same: PKCS12_parse() tries zero length and no password if
8223 the password is set to "" or NULL (NULL is now a valid password:
8224 it wasn't before) as does the pkcs12 application.
8227 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8228 perror when PEM_read_bio_X509_REQ fails, the error message must
8229 be obtained from the error queue.
8232 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8233 it in ERR_remove_state if appropriate, and change ERR_get_state
8234 accordingly to avoid race conditions (this is necessary because
8235 thread_hash is no longer constant once set).
8238 *) Bugfix for linux-elf makefile.one.
8241 *) RSA_get_default_method() will now cause a default
8242 RSA_METHOD to be chosen if one doesn't exist already.
8243 Previously this was only set during a call to RSA_new()
8244 or RSA_new_method(NULL) meaning it was possible for
8245 RSA_get_default_method() to return NULL.
8248 *) Added native name translation to the existing DSO code
8249 that will convert (if the flag to do so is set) filenames
8250 that are sufficiently small and have no path information
8251 into a canonical native form. Eg. "blah" converted to
8252 "libblah.so" or "blah.dll" etc.
8255 *) New function ERR_error_string_n(e, buf, len) which is like
8256 ERR_error_string(e, buf), but writes at most 'len' bytes
8257 including the 0 terminator. For ERR_error_string_n, 'buf'
8259 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8261 *) CONF library reworked to become more general. A new CONF
8262 configuration file reader "class" is implemented as well as a
8263 new functions (NCONF_*, for "New CONF") to handle it. The now
8264 old CONF_* functions are still there, but are reimplemented to
8265 work in terms of the new functions. Also, a set of functions
8266 to handle the internal storage of the configuration data is
8267 provided to make it easier to write new configuration file
8268 reader "classes" (I can definitely see something reading a
8269 configuration file in XML format, for example), called _CONF_*,
8270 or "the configuration storage API"...
8272 The new configuration file reading functions are:
8274 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8275 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8277 NCONF_default, NCONF_WIN32
8279 NCONF_dump_fp, NCONF_dump_bio
8281 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8282 NCONF_new creates a new CONF object. This works in the same way
8283 as other interfaces in OpenSSL, like the BIO interface.
8284 NCONF_dump_* dump the internal storage of the configuration file,
8285 which is useful for debugging. All other functions take the same
8286 arguments as the old CONF_* functions wth the exception of the
8287 first that must be a `CONF *' instead of a `LHASH *'.
8289 To make it easer to use the new classes with the old CONF_* functions,
8290 the function CONF_set_default_method is provided.
8293 *) Add '-tls1' option to 'openssl ciphers', which was already
8294 mentioned in the documentation but had not been implemented.
8295 (This option is not yet really useful because even the additional
8296 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8299 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8300 OpenSSL-based applications) load shared libraries and bind to
8301 them in a portable way.
8302 [Geoff Thorpe, with contributions from Richard Levitte]
8304 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8306 *) Make sure _lrotl and _lrotr are only used with MSVC.
8308 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8309 (the default implementation of RAND_status).
8311 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8312 to '-clrext' (= clear extensions), as intended and documented.
8313 [Bodo Moeller; inconsistency pointed out by Michael Attili
8316 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8317 was larger than the MD block size.
8318 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8320 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8321 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8322 using the passed key: if the passed key was a private key the result
8323 of X509_print(), for example, would be to print out all the private key
8327 *) des_quad_cksum() byte order bug fix.
8328 [Ulf Möller, using the problem description in krb4-0.9.7, where
8329 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8331 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8333 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8335 *) For easily testing in shell scripts whether some command
8336 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8337 returns with exit code 0 iff no command of the given name is available.
8338 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8339 the output goes to stdout and nothing is printed to stderr.
8340 Additional arguments are always ignored.
8342 Since for each cipher there is a command of the same name,
8343 the 'no-cipher' compilation switches can be tested this way.
8345 ('openssl no-XXX' is not able to detect pseudo-commands such
8346 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8349 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8352 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8353 is set; it will be thrown away anyway because each handshake creates
8355 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8356 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8357 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8358 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8361 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8362 'Q' and 'R' lose their special meanings (quit/renegotiate).
8363 This is part of what -quiet does; unlike -quiet, -ign_eof
8364 does not suppress any output.
8367 *) Add compatibility options to the purpose and trust code. The
8368 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8369 accepts a certificate or CA, this was the previous behaviour,
8370 with all the associated security issues.
8372 X509_TRUST_COMPAT is the old trust behaviour: only and
8373 automatically trust self signed roots in certificate store. A
8374 new trust setting X509_TRUST_DEFAULT is used to specify that
8375 a purpose has no associated trust setting and it should instead
8376 use the value in the default purpose.
8379 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8380 and fix a memory leak.
8383 *) In util/mkerr.pl (which implements 'make errors'), preserve
8384 reason strings from the previous version of the .c file, as
8385 the default to have only downcase letters (and digits) in
8386 automatically generated reasons codes is not always appropriate.
8389 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8390 using strerror. Previously, ERR_reason_error_string() returned
8391 library names as reason strings for SYSerr; but SYSerr is a special
8392 case where small numbers are errno values, not library numbers.
8395 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8396 converts DSA parameters into DH parameters. (When creating parameters,
8397 DSA_generate_parameters is used.)
8400 *) Include 'length' (recommended exponent length) in C code generated
8401 by 'openssl dhparam -C'.
8404 *) The second argument to set_label in perlasm was already being used
8405 so couldn't be used as a "file scope" flag. Moved to third argument
8409 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8410 instead of RAND_bytes for encryption IVs and salts.
8413 *) Include RAND_status() into RAND_METHOD instead of implementing
8414 it only for md_rand.c Otherwise replacing the PRNG by calling
8415 RAND_set_rand_method would be impossible.
8418 *) Don't let DSA_generate_key() enter an infinite loop if the random
8419 number generation fails.
8422 *) New 'rand' application for creating pseudo-random output.
8425 *) Added configuration support for Linux/IA64
8426 [Rolf Haberrecker <rolf@suse.de>]
8428 *) Assembler module support for Mingw32.
8431 *) Shared library support for HPUX (in shlib/).
8432 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8434 *) Shared library support for Solaris gcc.
8435 [Lutz Behnke <behnke@trustcenter.de>]
8437 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8439 *) PKCS7_encrypt() was adding text MIME headers twice because they
8440 were added manually and by SMIME_crlf_copy().
8443 *) In bntest.c don't call BN_rand with zero bits argument.
8444 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8446 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8447 case was implemented. This caused BN_div_recp() to fail occasionally.
8450 *) Add an optional second argument to the set_label() in the perl
8451 assembly language builder. If this argument exists and is set
8452 to 1 it signals that the assembler should use a symbol whose
8453 scope is the entire file, not just the current function. This
8454 is needed with MASM which uses the format label:: for this scope.
8455 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8457 *) Change the ASN1 types so they are typedefs by default. Before
8458 almost all types were #define'd to ASN1_STRING which was causing
8459 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
8463 *) Change names of new functions to the new get1/get0 naming
8464 convention: After 'get1', the caller owns a reference count
8465 and has to call ..._free; 'get0' returns a pointer to some
8466 data structure without incrementing reference counters.
8467 (Some of the existing 'get' functions increment a reference
8468 counter, some don't.)
8469 Similarly, 'set1' and 'add1' functions increase reference
8470 counters or duplicate objects.
8473 *) Allow for the possibility of temp RSA key generation failure:
8474 the code used to assume it always worked and crashed on failure.
8477 *) Fix potential buffer overrun problem in BIO_printf().
8478 [Ulf Möller, using public domain code by Patrick Powell; problem
8479 pointed out by David Sacerdote <das33@cornell.edu>]
8481 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
8482 RAND_egd() and RAND_status(). In the command line application,
8483 the EGD socket can be specified like a seed file using RANDFILE
8487 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
8488 Some CAs (e.g. Verisign) distribute certificates in this form.
8491 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
8492 list to exclude them. This means that no special compilation option
8493 is needed to use anonymous DH: it just needs to be included in the
8497 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
8498 EVP_MD_type. The old functionality is available in a new macro called
8499 EVP_MD_md(). Change code that uses it and update docs.
8502 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
8503 where the 'void *' argument is replaced by a function pointer argument.
8504 Previously 'void *' was abused to point to functions, which works on
8505 many platforms, but is not correct. As these functions are usually
8506 called by macros defined in OpenSSL header files, most source code
8507 should work without changes.
8510 *) <openssl/opensslconf.h> (which is created by Configure) now contains
8511 sections with information on -D... compiler switches used for
8512 compiling the library so that applications can see them. To enable
8513 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
8514 must be defined. E.g.,
8515 #define OPENSSL_ALGORITHM_DEFINES
8516 #include <openssl/opensslconf.h>
8517 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8518 [Richard Levitte, Ulf and Bodo Möller]
8520 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
8524 *) Change the 'other' type in certificate aux info to a STACK_OF
8525 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
8526 the required ASN1 format: arbitrary types determined by an OID.
8529 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
8530 argument to 'req'. This is not because the function is newer or
8531 better than others it just uses the work 'NEW' in the certificate
8532 request header lines. Some software needs this.
8535 *) Reorganise password command line arguments: now passwords can be
8536 obtained from various sources. Delete the PEM_cb function and make
8537 it the default behaviour: i.e. if the callback is NULL and the
8538 usrdata argument is not NULL interpret it as a null terminated pass
8539 phrase. If usrdata and the callback are NULL then the pass phrase
8540 is prompted for as usual.
8543 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
8544 the support is automatically enabled. The resulting binaries will
8545 autodetect the card and use it if present.
8546 [Ben Laurie and Compaq Inc.]
8548 *) Work around for Netscape hang bug. This sends certificate request
8549 and server done in one record. Since this is perfectly legal in the
8550 SSL/TLS protocol it isn't a "bug" option and is on by default. See
8551 the bugs/SSLv3 entry for more info.
8554 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
8557 *) Add -rand argument to smime and pkcs12 applications and read/write
8561 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
8564 *) Add command line password options to the remaining applications.
8567 *) Bug fix for BN_div_recp() for numerators with an even number of
8571 *) More tests in bntest.c, and changed test_bn output.
8574 *) ./config recognizes MacOS X now.
8577 *) Bug fix for BN_div() when the first words of num and divsor are
8578 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8581 *) Add support for various broken PKCS#8 formats, and command line
8582 options to produce them.
8585 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8586 get temporary BIGNUMs from a BN_CTX.
8589 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8593 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8594 include a #define from the old name to the new. The original intent
8595 was that statically linked binaries could for example just call
8596 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8597 link with digests. This never worked because SSLeay_add_all_digests()
8598 and SSLeay_add_all_ciphers() were in the same source file so calling
8599 one would link with the other. They are now in separate source files.
8602 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8605 *) Use a less unusual form of the Miller-Rabin primality test (it used
8606 a binary algorithm for exponentiation integrated into the Miller-Rabin
8607 loop, our standard modexp algorithms are faster).
8610 *) Support for the EBCDIC character set completed.
8611 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8613 *) Source code cleanups: use const where appropriate, eliminate casts,
8614 use void * instead of char * in lhash.
8617 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8618 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8619 this the server could overwrite ephemeral keys that the client
8623 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8624 using 50 iterations of the Rabin-Miller test.
8626 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8627 iterations of the Rabin-Miller test as required by the appendix
8628 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8629 As BN_is_prime_fasttest includes trial division, DSA parameter
8630 generation becomes much faster.
8632 This implies a change for the callback functions in DSA_is_prime
8633 and DSA_generate_parameters: The callback function is called once
8634 for each positive witness in the Rabin-Miller test, not just
8635 occasionally in the inner loop; and the parameters to the
8636 callback function now provide an iteration count for the outer
8637 loop rather than for the current invocation of the inner loop.
8638 DSA_generate_parameters additionally can call the callback
8639 function with an 'iteration count' of -1, meaning that a
8640 candidate has passed the trial division test (when q is generated
8641 from an application-provided seed, trial division is skipped).
8644 *) New function BN_is_prime_fasttest that optionally does trial
8645 division before starting the Rabin-Miller test and has
8646 an additional BN_CTX * argument (whereas BN_is_prime always
8647 has to allocate at least one BN_CTX).
8648 'callback(1, -1, cb_arg)' is called when a number has passed the
8649 trial division stage.
8652 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8656 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8659 *) New function BN_pseudo_rand().
8662 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8663 bignum version of BN_from_montgomery() with the working code from
8664 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8668 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8669 made it impossible to use the same SSL_SESSION data structure in
8670 SSL2 clients in multiple threads.
8673 *) The return value of RAND_load_file() no longer counts bytes obtained
8674 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8675 to seed the PRNG (previously an explicit byte count was required).
8676 [Ulf Möller, Bodo Möller]
8678 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8679 used (char *) instead of (void *) and had casts all over the place.
8682 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8685 *) Retain source code compatibility for BN_prime_checks macro:
8686 BN_is_prime(..., BN_prime_checks, ...) now uses
8687 BN_prime_checks_for_size to determine the appropriate number of
8688 Rabin-Miller iterations.
8691 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8692 DH_CHECK_P_NOT_SAFE_PRIME.
8693 (Check if this is true? OpenPGP calls them "strong".)
8696 *) Merge the functionality of "dh" and "gendh" programs into a new program
8697 "dhparam". The old programs are retained for now but will handle DH keys
8698 (instead of parameters) in future.
8701 *) Make the ciphers, s_server and s_client programs check the return values
8702 when a new cipher list is set.
8705 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8706 ciphers. Before when the 56bit ciphers were enabled the sorting was
8709 The syntax for the cipher sorting has been extended to support sorting by
8710 cipher-strength (using the strength_bits hard coded in the tables).
8711 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8713 Fix a bug in the cipher-command parser: when supplying a cipher command
8714 string with an "undefined" symbol (neither command nor alphanumeric
8715 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8716 an error is flagged.
8718 Due to the strength-sorting extension, the code of the
8719 ssl_create_cipher_list() function was completely rearranged. I hope that
8720 the readability was also increased :-)
8721 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8723 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8724 for the first serial number and places 2 in the serial number file. This
8725 avoids problems when the root CA is created with serial number zero and
8726 the first user certificate has the same issuer name and serial number
8730 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8731 the new code. Add documentation for this stuff.
8734 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8735 X509_*() to X509at_*() on the grounds that they don't handle X509
8736 structures and behave in an analogous way to the X509v3 functions:
8737 they shouldn't be called directly but wrapper functions should be used
8740 So we also now have some wrapper functions that call the X509at functions
8741 when passed certificate requests. (TO DO: similar things can be done with
8742 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8743 things. Some of these need some d2i or i2d and print functionality
8744 because they handle more complex structures.)
8747 *) Add missing #ifndefs that caused missing symbols when building libssl
8748 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8749 NO_RSA in ssl/s2*.c.
8750 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8752 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8753 has a return value which indicates the quality of the random data
8754 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8755 error queue. New function RAND_pseudo_bytes() generates output that is
8756 guaranteed to be unique but not unpredictable. RAND_add is like
8757 RAND_seed, but takes an extra argument for an entropy estimate
8758 (RAND_seed always assumes full entropy).
8761 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8762 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8763 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8764 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8765 false-positive rate of at most 2^-80 for random input.
8768 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8771 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8772 in the 0.9.5 release), this returns the chain
8773 from an X509_CTX structure with a dup of the stack and all
8774 the X509 reference counts upped: so the stack will exist
8775 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8778 Also make SSL_SESSION_print() print out the verify return
8782 *) Add manpage for the pkcs12 command. Also change the default
8783 behaviour so MAC iteration counts are used unless the new
8784 -nomaciter option is used. This improves file security and
8785 only older versions of MSIE (4.0 for example) need it.
8788 *) Honor the no-xxx Configure options when creating .DEF files.
8791 *) Add PKCS#10 attributes to field table: challengePassword,
8792 unstructuredName and unstructuredAddress. These are taken from
8793 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8794 international characters are used.
8796 More changes to X509_ATTRIBUTE code: allow the setting of types
8797 based on strings. Remove the 'loc' parameter when adding
8798 attributes because these will be a SET OF encoding which is sorted
8802 *) Initial changes to the 'req' utility to allow request generation
8803 automation. This will allow an application to just generate a template
8804 file containing all the field values and have req construct the
8807 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8808 used all over the place including certificate requests and PKCS#7
8809 structures. They are currently handled manually where necessary with
8810 some primitive wrappers for PKCS#7. The new functions behave in a
8811 manner analogous to the X509 extension functions: they allow
8812 attributes to be looked up by NID and added.
8814 Later something similar to the X509V3 code would be desirable to
8815 automatically handle the encoding, decoding and printing of the
8816 more complex types. The string types like challengePassword can
8817 be handled by the string table functions.
8819 Also modified the multi byte string table handling. Now there is
8820 a 'global mask' which masks out certain types. The table itself
8821 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8822 is useful when for example there is only one permissible type
8823 (as in countryName) and using the mask might result in no valid
8827 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8828 SSL_get_peer_finished to allow applications to obtain the latest
8829 Finished messages sent to the peer or expected from the peer,
8830 respectively. (SSL_get_peer_finished is usually the Finished message
8831 actually received from the peer, otherwise the protocol will be aborted.)
8833 As the Finished message are message digests of the complete handshake
8834 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8835 be used for external authentication procedures when the authentication
8836 provided by SSL/TLS is not desired or is not enough.
8839 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8840 the host supports BWX extension and if Compaq C is present on the
8841 $PATH. Just exploiting of the BWX extension results in 20-30%
8842 performance kick for some algorithms, e.g. DES and RC4 to mention
8843 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8847 *) Add support for MS "fast SGC". This is arguably a violation of the
8848 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8849 weak crypto and after checking the certificate is SGC a second one
8850 with strong crypto. MS SGC stops the first handshake after receiving
8851 the server certificate message and sends a second client hello. Since
8852 a server will typically do all the time consuming operations before
8853 expecting any further messages from the client (server key exchange
8854 is the most expensive) there is little difference between the two.
8856 To get OpenSSL to support MS SGC we have to permit a second client
8857 hello message after we have sent server done. In addition we have to
8858 reset the MAC if we do get this second client hello.
8861 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8862 if a DER encoded private key is RSA or DSA traditional format. Changed
8863 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8864 format DER encoded private key. Newer code should use PKCS#8 format which
8865 has the key type encoded in the ASN1 structure. Added DER private key
8866 support to pkcs8 application.
8869 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8870 ciphersuites has been selected (as required by the SSL 3/TLS 1
8871 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8872 is set, we interpret this as a request to violate the specification
8873 (the worst that can happen is a handshake failure, and 'correct'
8874 behaviour would result in a handshake failure anyway).
8877 *) In SSL_CTX_add_session, take into account that there might be multiple
8878 SSL_SESSION structures with the same session ID (e.g. when two threads
8879 concurrently obtain them from an external cache).
8880 The internal cache can handle only one SSL_SESSION with a given ID,
8881 so if there's a conflict, we now throw out the old one to achieve
8885 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8886 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8887 some routines that use cipher OIDs: some ciphers do not have OIDs
8888 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8892 *) Simplify the trust setting structure and code. Now we just have
8893 two sequences of OIDs for trusted and rejected settings. These will
8894 typically have values the same as the extended key usage extension
8895 and any application specific purposes.
8897 The trust checking code now has a default behaviour: it will just
8898 check for an object with the same NID as the passed id. Functions can
8899 be provided to override either the default behaviour or the behaviour
8900 for a given id. SSL client, server and email already have functions
8901 in place for compatibility: they check the NID and also return "trusted"
8902 if the certificate is self signed.
8905 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8906 traditional format into an EVP_PKEY structure.
8909 *) Add a password callback function PEM_cb() which either prompts for
8910 a password if usr_data is NULL or otherwise assumes it is a null
8911 terminated password. Allow passwords to be passed on command line
8912 environment or config files in a few more utilities.
8915 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8916 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8917 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8918 Update documentation.
8921 *) Support for ASN1 "NULL" type. This could be handled before by using
8922 ASN1_TYPE but there wasn't any function that would try to read a NULL
8923 and produce an error if it couldn't. For compatibility we also have
8924 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8925 don't allocate anything because they don't need to.
8928 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8930 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8932 *) Rebuild of the memory allocation routines used by OpenSSL code and
8933 possibly others as well. The purpose is to make an interface that
8934 provide hooks so anyone can build a separate set of allocation and
8935 deallocation routines to be used by OpenSSL, for example memory
8936 pool implementations, or something else, which was previously hard
8937 since Malloc(), Realloc() and Free() were defined as macros having
8938 the values malloc, realloc and free, respectively (except for Win32
8939 compilations). The same is provided for memory debugging code.
8940 OpenSSL already comes with functionality to find memory leaks, but
8941 this gives people a chance to debug other memory problems.
8943 With these changes, a new set of functions and macros have appeared:
8945 CRYPTO_set_mem_debug_functions() [F]
8946 CRYPTO_get_mem_debug_functions() [F]
8947 CRYPTO_dbg_set_options() [F]
8948 CRYPTO_dbg_get_options() [F]
8949 CRYPTO_malloc_debug_init() [M]
8951 The memory debug functions are NULL by default, unless the library
8952 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8953 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8954 gives the standard debugging functions that come with OpenSSL) or
8955 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8956 provided by the library user) must be used. When the standard
8957 debugging functions are used, CRYPTO_dbg_set_options can be used to
8958 request additional information:
8959 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8960 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8962 Also, things like CRYPTO_set_mem_functions will always give the
8963 expected result (the new set of functions is used for allocation
8964 and deallocation) at all times, regardless of platform and compiler
8967 To finish it up, some functions that were never use in any other
8968 way than through macros have a new API and new semantic:
8971 CRYPTO_dbg_realloc()
8974 All macros of value have retained their old syntax.
8975 [Richard Levitte and Bodo Moeller]
8977 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8978 ordering of SMIMECapabilities wasn't in "strength order" and there
8979 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8983 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8984 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8985 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8987 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8988 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8989 functionality to handle multipart/signed properly) and a utility
8990 called 'smime' to call all this stuff. This is based on code I
8991 originally wrote for Celo who have kindly allowed it to be
8992 included in OpenSSL.
8995 *) Add variants des_set_key_checked and des_set_key_unchecked of
8996 des_set_key (aka des_key_sched). Global variable des_check_key
8997 decides which of these is called by des_set_key; this way
8998 des_check_key behaves as it always did, but applications and
8999 the library itself, which was buggy for des_check_key == 1,
9000 have a cleaner way to pick the version they need.
9003 *) New function PKCS12_newpass() which changes the password of a
9007 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
9008 dynamic mix. In both cases the ids can be used as an index into the
9009 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
9010 functions so they accept a list of the field values and the
9011 application doesn't need to directly manipulate the X509_TRUST
9015 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
9019 *) Modify the way the V3 extension code looks up extensions. This now
9020 works in a similar way to the object code: we have some "standard"
9021 extensions in a static table which is searched with OBJ_bsearch()
9022 and the application can add dynamic ones if needed. The file
9023 crypto/x509v3/ext_dat.h now has the info: this file needs to be
9024 updated whenever a new extension is added to the core code and kept
9025 in ext_nid order. There is a simple program 'tabtest.c' which checks
9026 this. New extensions are not added too often so this file can readily
9027 be maintained manually.
9029 There are two big advantages in doing things this way. The extensions
9030 can be looked up immediately and no longer need to be "added" using
9031 X509V3_add_standard_extensions(): this function now does nothing.
9032 [Side note: I get *lots* of email saying the extension code doesn't
9033 work because people forget to call this function]
9034 Also no dynamic allocation is done unless new extensions are added:
9035 so if we don't add custom extensions there is no need to call
9036 X509V3_EXT_cleanup().
9039 *) Modify enc utility's salting as follows: make salting the default. Add a
9040 magic header, so unsalted files fail gracefully instead of just decrypting
9041 to garbage. This is because not salting is a big security hole, so people
9042 should be discouraged from doing it.
9045 *) Fixes and enhancements to the 'x509' utility. It allowed a message
9046 digest to be passed on the command line but it only used this
9047 parameter when signing a certificate. Modified so all relevant
9048 operations are affected by the digest parameter including the
9049 -fingerprint and -x509toreq options. Also -x509toreq choked if a
9050 DSA key was used because it didn't fix the digest.
9053 *) Initial certificate chain verify code. Currently tests the untrusted
9054 certificates for consistency with the verify purpose (which is set
9055 when the X509_STORE_CTX structure is set up) and checks the pathlength.
9057 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
9058 this is because it will reject chains with invalid extensions whereas
9059 every previous version of OpenSSL and SSLeay made no checks at all.
9061 Trust code: checks the root CA for the relevant trust settings. Trust
9062 settings have an initial value consistent with the verify purpose: e.g.
9063 if the verify purpose is for SSL client use it expects the CA to be
9064 trusted for SSL client use. However the default value can be changed to
9065 permit custom trust settings: one example of this would be to only trust
9066 certificates from a specific "secure" set of CAs.
9068 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
9069 which should be used for version portability: especially since the
9070 verify structure is likely to change more often now.
9072 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
9073 to set them. If not set then assume SSL clients will verify SSL servers
9076 Two new options to the verify program: -untrusted allows a set of
9077 untrusted certificates to be passed in and -purpose which sets the
9078 intended purpose of the certificate. If a purpose is set then the
9079 new chain verify code is used to check extension consistency.
9082 *) Support for the authority information access extension.
9085 *) Modify RSA and DSA PEM read routines to transparently handle
9086 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9087 public keys in a format compatible with certificate
9088 SubjectPublicKeyInfo structures. Unfortunately there were already
9089 functions called *_PublicKey_* which used various odd formats so
9090 these are retained for compatibility: however the DSA variants were
9091 never in a public release so they have been deleted. Changed dsa/rsa
9092 utilities to handle the new format: note no releases ever handled public
9093 keys so we should be OK.
9095 The primary motivation for this change is to avoid the same fiasco
9096 that dogs private keys: there are several incompatible private key
9097 formats some of which are standard and some OpenSSL specific and
9098 require various evil hacks to allow partial transparent handling and
9099 even then it doesn't work with DER formats. Given the option anything
9100 other than PKCS#8 should be dumped: but the other formats have to
9101 stay in the name of compatibility.
9103 With public keys and the benefit of hindsight one standard format
9104 is used which works with EVP_PKEY, RSA or DSA structures: though
9105 it clearly returns an error if you try to read the wrong kind of key.
9107 Added a -pubkey option to the 'x509' utility to output the public key.
9108 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9109 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9110 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9111 that do the same as the EVP_PKEY_assign_*() except they up the
9112 reference count of the added key (they don't "swallow" the
9116 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9117 CRLs would fail if the file contained no certificates or no CRLs:
9118 added a new function to read in both types and return the number
9119 read: this means that if none are read it will be an error. The
9120 DER versions of the certificate and CRL reader would always fail
9121 because it isn't possible to mix certificates and CRLs in DER format
9122 without choking one or the other routine. Changed this to just read
9123 a certificate: this is the best we can do. Also modified the code
9124 in apps/verify.c to take notice of return codes: it was previously
9125 attempting to read in certificates from NULL pointers and ignoring
9126 any errors: this is one reason why the cert and CRL reader seemed
9127 to work. It doesn't check return codes from the default certificate
9128 routines: these may well fail if the certificates aren't installed.
9131 *) Code to support otherName option in GeneralName.
9134 *) First update to verify code. Change the verify utility
9135 so it warns if it is passed a self signed certificate:
9136 for consistency with the normal behaviour. X509_verify
9137 has been modified to it will now verify a self signed
9138 certificate if *exactly* the same certificate appears
9139 in the store: it was previously impossible to trust a
9140 single self signed certificate. This means that:
9141 openssl verify ss.pem
9142 now gives a warning about a self signed certificate but
9143 openssl verify -CAfile ss.pem ss.pem
9147 *) For servers, store verify_result in SSL_SESSION data structure
9148 (and add it to external session representation).
9149 This is needed when client certificate verifications fails,
9150 but an application-provided verification callback (set by
9151 SSL_CTX_set_cert_verify_callback) allows accepting the session
9152 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9153 but returns 1): When the session is reused, we have to set
9154 ssl->verify_result to the appropriate error code to avoid
9156 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9158 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9159 case in PKCS7_dataInit() where the signed PKCS7 structure
9160 didn't contain any existing data because it was being created.
9161 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9163 *) Add a salt to the key derivation routines in enc.c. This
9164 forms the first 8 bytes of the encrypted file. Also add a
9165 -S option to allow a salt to be input on the command line.
9168 *) New function X509_cmp(). Oddly enough there wasn't a function
9169 to compare two certificates. We do this by working out the SHA1
9170 hash and comparing that. X509_cmp() will be needed by the trust
9174 *) SSL_get1_session() is like SSL_get_session(), but increments
9175 the reference count in the SSL_SESSION returned.
9176 [Geoff Thorpe <geoff@eu.c2.net>]
9178 *) Fix for 'req': it was adding a null to request attributes.
9179 Also change the X509_LOOKUP and X509_INFO code to handle
9180 certificate auxiliary information.
9183 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9187 *) Add the possibility to add extra information to the memory leak
9188 detecting output, to form tracebacks, showing from where each
9189 allocation was originated: CRYPTO_push_info("constant string") adds
9190 the string plus current file name and line number to a per-thread
9191 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9192 is like calling CYRPTO_pop_info() until the stack is empty.
9193 Also updated memory leak detection code to be multi-thread-safe.
9196 *) Add options -text and -noout to pkcs7 utility and delete the
9197 encryption options which never did anything. Update docs.
9200 *) Add options to some of the utilities to allow the pass phrase
9201 to be included on either the command line (not recommended on
9202 OSes like Unix) or read from the environment. Update the
9203 manpages and fix a few bugs.
9206 *) Add a few manpages for some of the openssl commands.
9209 *) Fix the -revoke option in ca. It was freeing up memory twice,
9210 leaking and not finding already revoked certificates.
9213 *) Extensive changes to support certificate auxiliary information.
9214 This involves the use of X509_CERT_AUX structure and X509_AUX
9215 functions. An X509_AUX function such as PEM_read_X509_AUX()
9216 can still read in a certificate file in the usual way but it
9217 will also read in any additional "auxiliary information". By
9218 doing things this way a fair degree of compatibility can be
9219 retained: existing certificates can have this information added
9220 using the new 'x509' options.
9222 Current auxiliary information includes an "alias" and some trust
9223 settings. The trust settings will ultimately be used in enhanced
9224 certificate chain verification routines: currently a certificate
9225 can only be trusted if it is self signed and then it is trusted
9229 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9230 The problem was that one of the replacement routines had not been working
9231 since SSLeay releases. For now the offending routine has been replaced
9232 with non-optimised assembler. Even so, this now gives around 95%
9233 performance improvement for 1024 bit RSA signs.
9236 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9237 handling. Most clients have the effective key size in bits equal to
9238 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9239 A few however don't do this and instead use the size of the decrypted key
9240 to determine the RC2 key length and the AlgorithmIdentifier to determine
9241 the effective key length. In this case the effective key length can still
9242 be 40 bits but the key length can be 168 bits for example. This is fixed
9243 by manually forcing an RC2 key into the EVP_PKEY structure because the
9244 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9245 the key length and effective key length are equal.
9248 *) Add a bunch of functions that should simplify the creation of
9249 X509_NAME structures. Now you should be able to do:
9250 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9251 and have it automatically work out the correct field type and fill in
9252 the structures. The more adventurous can try:
9253 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9254 and it will (hopefully) work out the correct multibyte encoding.
9257 *) Change the 'req' utility to use the new field handling and multibyte
9258 copy routines. Before the DN field creation was handled in an ad hoc
9259 way in req, ca, and x509 which was rather broken and didn't support
9260 BMPStrings or UTF8Strings. Since some software doesn't implement
9261 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9262 using the dirstring_type option. See the new comment in the default
9263 openssl.cnf for more info.
9266 *) Make crypto/rand/md_rand.c more robust:
9267 - Assure unique random numbers after fork().
9268 - Make sure that concurrent threads access the global counter and
9269 md serializably so that we never lose entropy in them
9270 or use exactly the same state in multiple threads.
9271 Access to the large state is not always serializable because
9272 the additional locking could be a performance killer, and
9273 md should be large enough anyway.
9276 *) New file apps/app_rand.c with commonly needed functionality
9277 for handling the random seed file.
9279 Use the random seed file in some applications that previously did not:
9281 dsaparam -genkey (which also ignored its '-rand' option),
9284 x509 (when signing).
9285 Except on systems with /dev/urandom, it is crucial to have a random
9286 seed file at least for key creation, DSA signing, and for DH exchanges;
9287 for RSA signatures we could do without one.
9289 gendh and gendsa (unlike genrsa) used to read only the first byte
9290 of each file listed in the '-rand' option. The function as previously
9291 found in genrsa is now in app_rand.c and is used by all programs
9292 that support '-rand'.
9295 *) In RAND_write_file, use mode 0600 for creating files;
9296 don't just chmod when it may be too late.
9299 *) Report an error from X509_STORE_load_locations
9300 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9303 *) New function ASN1_mbstring_copy() this copies a string in either
9304 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9305 into an ASN1_STRING type. A mask of permissible types is passed
9306 and it chooses the "minimal" type to use or an error if not type
9310 *) Add function equivalents to the various macros in asn1.h. The old
9311 macros are retained with an M_ prefix. Code inside the library can
9312 use the M_ macros. External code (including the openssl utility)
9313 should *NOT* in order to be "shared library friendly".
9316 *) Add various functions that can check a certificate's extensions
9317 to see if it usable for various purposes such as SSL client,
9318 server or S/MIME and CAs of these types. This is currently
9319 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9320 verification. Also added a -purpose flag to x509 utility to
9321 print out all the purposes.
9324 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9328 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9329 for, obtain and decode and extension and obtain its critical flag.
9330 This allows all the necessary extension code to be handled in a
9331 single function call.
9334 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9335 platforms. See crypto/rc4/rc4_enc.c for further details.
9338 *) New -noout option to asn1parse. This causes no output to be produced
9339 its main use is when combined with -strparse and -out to extract data
9340 from a file (which may not be in ASN.1 format).
9343 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9344 when producing the local key id.
9345 [Richard Levitte <levitte@stacken.kth.se>]
9347 *) New option -dhparam in s_server. This allows a DH parameter file to be
9348 stated explicitly. If it is not stated then it tries the first server
9349 certificate file. The previous behaviour hard coded the filename
9353 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9354 a public key to be input or output. For example:
9355 openssl rsa -in key.pem -pubout -out pubkey.pem
9356 Also added necessary DSA public key functions to handle this.
9359 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9360 in the message. This was handled by allowing
9361 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9362 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9364 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9365 to the end of the strings whereas this didn't. This would cause problems
9366 if strings read with d2i_ASN1_bytes() were later modified.
9367 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9369 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9370 data and it contains EOF it will end up returning an error. This is
9371 caused by input 46 bytes long. The cause is due to the way base64
9372 BIOs find the start of base64 encoded data. They do this by trying a
9373 trial decode on each line until they find one that works. When they
9374 do a flag is set and it starts again knowing it can pass all the
9375 data directly through the decoder. Unfortunately it doesn't reset
9376 the context it uses. This means that if EOF is reached an attempt
9377 is made to pass two EOFs through the context and this causes the
9378 resulting error. This can also cause other problems as well. As is
9379 usual with these problems it takes *ages* to find and the fix is
9380 trivial: move one line.
9381 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9383 *) Ugly workaround to get s_client and s_server working under Windows. The
9384 old code wouldn't work because it needed to select() on sockets and the
9385 tty (for keypresses and to see if data could be written). Win32 only
9386 supports select() on sockets so we select() with a 1s timeout on the
9387 sockets and then see if any characters are waiting to be read, if none
9388 are present then we retry, we also assume we can always write data to
9389 the tty. This isn't nice because the code then blocks until we've
9390 received a complete line of data and it is effectively polling the
9391 keyboard at 1s intervals: however it's quite a bit better than not
9392 working at all :-) A dedicated Windows application might handle this
9393 with an event loop for example.
9396 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9397 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9398 will be called when RSA_sign() and RSA_verify() are used. This is useful
9399 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9400 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9401 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9402 This necessitated the support of an extra signature type NID_md5_sha1
9403 for SSL signatures and modifications to the SSL library to use it instead
9404 of calling RSA_public_decrypt() and RSA_private_encrypt().
9407 *) Add new -verify -CAfile and -CApath options to the crl program, these
9408 will lookup a CRL issuers certificate and verify the signature in a
9409 similar way to the verify program. Tidy up the crl program so it
9410 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9411 less strict. It will now permit CRL extensions even if it is not
9412 a V2 CRL: this will allow it to tolerate some broken CRLs.
9415 *) Initialize all non-automatic variables each time one of the openssl
9416 sub-programs is started (this is necessary as they may be started
9417 multiple times from the "OpenSSL>" prompt).
9418 [Lennart Bang, Bodo Moeller]
9420 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9421 removing all other RSA functionality (this is what NO_RSA does). This
9422 is so (for example) those in the US can disable those operations covered
9423 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9427 *) Non-copying interface to BIO pairs.
9428 (still largely untested)
9431 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9432 ASCII string. This was handled independently in various places before.
9435 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9436 UTF8 strings a character at a time.
9439 *) Use client_version from client hello to select the protocol
9440 (s23_srvr.c) and for RSA client key exchange verification
9441 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9444 *) Add various utility functions to handle SPKACs, these were previously
9445 handled by poking round in the structure internals. Added new function
9446 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9447 print, verify and generate SPKACs. Based on an original idea from
9448 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9451 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9454 *) Allow the config file extension section to be overwritten on the
9455 command line. Based on an original idea from Massimiliano Pala
9456 <madwolf@comune.modena.it>. The new option is called -extensions
9457 and can be applied to ca, req and x509. Also -reqexts to override
9458 the request extensions in req and -crlexts to override the crl extensions
9462 *) Add new feature to the SPKAC handling in ca. Now you can include
9463 the same field multiple times by preceding it by "XXXX." for example:
9466 this is the same syntax as used in the req config file.
9469 *) Allow certificate extensions to be added to certificate requests. These
9470 are specified in a 'req_extensions' option of the req section of the
9471 config file. They can be printed out with the -text option to req but
9472 are otherwise ignored at present.
9475 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9476 data read consists of only the final block it would not decrypted because
9477 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
9478 A misplaced 'break' also meant the decrypted final block might not be
9479 copied until the next read.
9482 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
9483 a few extra parameters to the DH structure: these will be useful if
9484 for example we want the value of 'q' or implement X9.42 DH.
9487 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
9488 provides hooks that allow the default DSA functions or functions on a
9489 "per key" basis to be replaced. This allows hardware acceleration and
9490 hardware key storage to be handled without major modification to the
9491 library. Also added low level modexp hooks and CRYPTO_EX structure and
9492 associated functions.
9495 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
9496 as "read only": it can't be written to and the buffer it points to will
9497 not be freed. Reading from a read only BIO is much more efficient than
9498 a normal memory BIO. This was added because there are several times when
9499 an area of memory needs to be read from a BIO. The previous method was
9500 to create a memory BIO and write the data to it, this results in two
9501 copies of the data and an O(n^2) reading algorithm. There is a new
9502 function BIO_new_mem_buf() which creates a read only memory BIO from
9503 an area of memory. Also modified the PKCS#7 routines to use read only
9507 *) Bugfix: ssl23_get_client_hello did not work properly when called in
9508 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
9509 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
9510 but a retry condition occured while trying to read the rest.
9513 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
9514 NID_pkcs7_encrypted by default: this was wrong since this should almost
9515 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
9516 the encrypted data type: this is a more sensible place to put it and it
9517 allows the PKCS#12 code to be tidied up that duplicated this
9521 *) Changed obj_dat.pl script so it takes its input and output files on
9522 the command line. This should avoid shell escape redirection problems
9526 *) Initial support for certificate extension requests, these are included
9527 in things like Xenroll certificate requests. Included functions to allow
9528 extensions to be obtained and added.
9531 *) -crlf option to s_client and s_server for sending newlines as
9532 CRLF (as required by many protocols).
9535 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
9537 *) Install libRSAglue.a when OpenSSL is built with RSAref.
9538 [Ralf S. Engelschall]
9540 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
9541 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
9543 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
9547 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
9548 DH parameters/keys (q is lost during that conversion, but the resulting
9549 DH parameters contain its length).
9551 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
9552 much faster than DH_generate_parameters (which creates parameters
9553 where p = 2*q + 1), and also the smaller q makes DH computations
9554 much more efficient (160-bit exponentiation instead of 1024-bit
9555 exponentiation); so this provides a convenient way to support DHE
9556 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
9557 utter importance to use
9558 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9560 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9561 when such DH parameters are used, because otherwise small subgroup
9562 attacks may become possible!
9565 *) Avoid memory leak in i2d_DHparams.
9568 *) Allow the -k option to be used more than once in the enc program:
9569 this allows the same encrypted message to be read by multiple recipients.
9572 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
9573 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
9574 it will always use the numerical form of the OID, even if it has a short
9578 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9579 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9580 otherwise bn_mod_exp was called. In the case of hardware keys for example
9581 no private key components need be present and it might store extra data
9582 in the RSA structure, which cannot be accessed from bn_mod_exp.
9583 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9584 private key operations.
9587 *) Added support for SPARC Linux.
9590 *) pem_password_cb function type incompatibly changed from
9591 typedef int pem_password_cb(char *buf, int size, int rwflag);
9593 ....(char *buf, int size, int rwflag, void *userdata);
9594 so that applications can pass data to their callbacks:
9595 The PEM[_ASN1]_{read,write}... functions and macros now take an
9596 additional void * argument, which is just handed through whenever
9597 the password callback is called.
9598 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9600 New function SSL_CTX_set_default_passwd_cb_userdata.
9602 Compatibility note: As many C implementations push function arguments
9603 onto the stack in reverse order, the new library version is likely to
9604 interoperate with programs that have been compiled with the old
9605 pem_password_cb definition (PEM_whatever takes some data that
9606 happens to be on the stack as its last argument, and the callback
9607 just ignores this garbage); but there is no guarantee whatsoever that
9610 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9611 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9612 problems not only on Windows, but also on some Unix platforms.
9613 To avoid problematic command lines, these definitions are now in an
9614 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9615 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9618 *) MIPS III/IV assembler module is reimplemented.
9621 *) More DES library cleanups: remove references to srand/rand and
9622 delete an unused file.
9625 *) Add support for the the free Netwide assembler (NASM) under Win32,
9626 since not many people have MASM (ml) and it can be hard to obtain.
9627 This is currently experimental but it seems to work OK and pass all
9628 the tests. Check out INSTALL.W32 for info.
9631 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9632 without temporary keys kept an extra copy of the server key,
9633 and connections with temporary keys did not free everything in case
9637 *) New function RSA_check_key and new openssl rsa option -check
9638 for verifying the consistency of RSA keys.
9639 [Ulf Moeller, Bodo Moeller]
9641 *) Various changes to make Win32 compile work:
9642 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9643 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9644 comparison" warnings.
9645 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9648 *) Add a debugging option to PKCS#5 v2 key generation function: when
9649 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9650 derived keys are printed to stderr.
9653 *) Copy the flags in ASN1_STRING_dup().
9654 [Roman E. Pavlov <pre@mo.msk.ru>]
9656 *) The x509 application mishandled signing requests containing DSA
9657 keys when the signing key was also DSA and the parameters didn't match.
9659 It was supposed to omit the parameters when they matched the signing key:
9660 the verifying software was then supposed to automatically use the CA's
9661 parameters if they were absent from the end user certificate.
9663 Omitting parameters is no longer recommended. The test was also
9664 the wrong way round! This was probably due to unusual behaviour in
9665 EVP_cmp_parameters() which returns 1 if the parameters match.
9666 This meant that parameters were omitted when they *didn't* match and
9667 the certificate was useless. Certificates signed with 'ca' didn't have
9669 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9671 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9672 The interface is as follows:
9673 Applications can use
9674 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9675 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9676 "off" is now the default.
9677 The library internally uses
9678 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9679 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9680 to disable memory-checking temporarily.
9682 Some inconsistent states that previously were possible (and were
9683 even the default) are now avoided.
9685 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9686 with each memory chunk allocated; this is occasionally more helpful
9687 than just having a counter.
9689 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9691 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9695 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9696 which largely parallels "options", but is for changing API behaviour,
9697 whereas "options" are about protocol behaviour.
9698 Initial "mode" flags are:
9700 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9701 a single record has been written.
9702 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9703 retries use the same buffer location.
9704 (But all of the contents must be
9708 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9711 *) Fix problems with no-hmac etc.
9712 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9714 *) New functions RSA_get_default_method(), RSA_set_method() and
9715 RSA_get_method(). These allows replacement of RSA_METHODs without having
9716 to mess around with the internals of an RSA structure.
9719 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9720 Also really enable memory leak checks in openssl.c and in some
9722 [Chad C. Mulligan, Bodo Moeller]
9724 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9725 up the length of negative integers. This has now been simplified to just
9726 store the length when it is first determined and use it later, rather
9727 than trying to keep track of where data is copied and updating it to
9729 [Steve Henson, reported by Brien Wheeler
9730 <bwheeler@authentica-security.com>]
9732 *) Add a new function PKCS7_signatureVerify. This allows the verification
9733 of a PKCS#7 signature but with the signing certificate passed to the
9734 function itself. This contrasts with PKCS7_dataVerify which assumes the
9735 certificate is present in the PKCS#7 structure. This isn't always the
9736 case: certificates can be omitted from a PKCS#7 structure and be
9737 distributed by "out of band" means (such as a certificate database).
9740 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9741 function prototypes in pem.h, also change util/mkdef.pl to add the
9742 necessary function names.
9745 *) mk1mf.pl (used by Windows builds) did not properly read the
9746 options set by Configure in the top level Makefile, and Configure
9747 was not even able to write more than one option correctly.
9748 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9751 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9752 file to be loaded from a BIO or FILE pointer. The BIO version will
9753 for example allow memory BIOs to contain config info.
9756 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9757 Whoever hopes to achieve shared-library compatibility across versions
9758 must use this, not the compile-time macro.
9759 (Exercise 0.9.4: Which is the minimum library version required by
9761 Note: All this applies only to multi-threaded programs, others don't
9765 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9766 through a BIO pair triggered the default case, i.e.
9767 SSLerr(...,SSL_R_UNKNOWN_STATE).
9770 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9771 can use the SSL library even if none of the specific BIOs is
9775 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9776 for the encoded length.
9777 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9779 *) Add initial documentation of the X509V3 functions.
9782 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9783 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9784 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9785 secure PKCS#8 private key format with a high iteration count.
9788 *) Fix determination of Perl interpreter: A perl or perl5
9789 _directory_ in $PATH was also accepted as the interpreter.
9790 [Ralf S. Engelschall]
9792 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9793 wrong with it but it was very old and did things like calling
9794 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9798 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9799 to use the new extension code.
9802 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9803 with macros. This should make it easier to change their form, add extra
9804 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9808 *) Add to configuration table a new entry that can specify an alternative
9809 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9810 according to Mark Crispin <MRC@Panda.COM>.
9814 *) DES CBC did not update the IV. Weird.
9817 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9818 Changing the behaviour of the former might break existing programs --
9819 where IV updating is needed, des_ncbc_encrypt can be used.
9822 *) When bntest is run from "make test" it drives bc to check its
9823 calculations, as well as internally checking them. If an internal check
9824 fails, it needs to cause bc to give a non-zero result or make test carries
9825 on without noticing the failure. Fixed.
9828 *) DES library cleanups.
9831 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9832 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9833 ciphers. NOTE: although the key derivation function has been verified
9834 against some published test vectors it has not been extensively tested
9835 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9839 *) Instead of "mkdir -p", which is not fully portable, use new
9840 Perl script "util/mkdir-p.pl".
9843 *) Rewrite the way password based encryption (PBE) is handled. It used to
9844 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9845 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9846 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9847 the 'parameter' field of the AlgorithmIdentifier is passed to the
9848 underlying key generation function so it must do its own ASN1 parsing.
9849 This has also changed the EVP_PBE_CipherInit() function which now has a
9850 'parameter' argument instead of literal salt and iteration count values
9851 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9854 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9855 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9856 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9857 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9858 value was just used as a "magic string" and not used directly its
9859 value doesn't matter.
9862 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9866 *) "linux-sparc64" configuration (ultrapenguin).
9867 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9868 "linux-sparc" configuration.
9869 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9871 *) config now generates no-xxx options for missing ciphers.
9874 *) Support the EBCDIC character set (work in progress).
9875 File ebcdic.c not yet included because it has a different license.
9876 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9878 *) Support BS2000/OSD-POSIX.
9879 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9881 *) Make callbacks for key generation use void * instead of char *.
9884 *) Make S/MIME samples compile (not yet tested).
9887 *) Additional typesafe stacks.
9890 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9894 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9896 *) New configuration variant "sco5-gcc".
9898 *) Updated some demos.
9899 [Sean O Riordain, Wade Scholine]
9901 *) Add missing BIO_free at exit of pkcs12 application.
9904 *) Fix memory leak in conf.c.
9907 *) Updates for Win32 to assembler version of MD5.
9910 *) Set #! path to perl in apps/der_chop to where we found it
9911 instead of using a fixed path.
9914 *) SHA library changes for irix64-mips4-cc.
9917 *) Improvements for VMS support.
9921 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9923 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9924 This also avoids the problems with SC4.2 and unpatched SC5.
9925 [Andy Polyakov <appro@fy.chalmers.se>]
9927 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9928 These are required because of the typesafe stack would otherwise break
9929 existing code. If old code used a structure member which used to be STACK
9930 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9931 sk_num or sk_value it would produce an error because the num, data members
9932 are not present in STACK_OF. Now it just produces a warning. sk_set
9933 replaces the old method of assigning a value to sk_value
9934 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9935 that does this will no longer work (and should use sk_set instead) but
9936 this could be regarded as a "questionable" behaviour anyway.
9939 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9940 correctly handle encrypted S/MIME data.
9943 *) Change type of various DES function arguments from des_cblock
9944 (which means, in function argument declarations, pointer to char)
9945 to des_cblock * (meaning pointer to array with 8 char elements),
9946 which allows the compiler to do more typechecking; it was like
9947 that back in SSLeay, but with lots of ugly casts.
9949 Introduce new type const_des_cblock.
9952 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9953 problems: find RecipientInfo structure that matches recipient certificate
9954 and initialise the ASN1 structures properly based on passed cipher.
9957 *) Belatedly make the BN tests actually check the results.
9960 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9961 to and from BNs: it was completely broken. New compilation option
9962 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9963 key elements as negative integers.
9966 *) Reorganize and speed up MD5.
9967 [Andy Polyakov <appro@fy.chalmers.se>]
9970 [Richard Levitte <richard@levitte.org>]
9972 *) New option -out to asn1parse to allow the parsed structure to be
9973 output to a file. This is most useful when combined with the -strparse
9974 option to examine the output of things like OCTET STRINGS.
9977 *) Make SSL library a little more fool-proof by not requiring any longer
9978 that SSL_set_{accept,connect}_state be called before
9979 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9980 in many applications because usually everything *appeared* to work as
9981 intended anyway -- now it really works as intended).
9984 *) Move openssl.cnf out of lib/.
9987 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9988 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9989 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9990 [Ralf S. Engelschall]
9992 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9993 handle PKCS#7 enveloped data properly.
9994 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9996 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9997 copying pointers. The cert_st handling is changed by this in
9998 various ways (and thus what used to be known as ctx->default_cert
9999 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
10000 any longer when s->cert does not give us what we need).
10001 ssl_cert_instantiate becomes obsolete by this change.
10002 As soon as we've got the new code right (possibly it already is?),
10003 we have solved a couple of bugs of the earlier code where s->cert
10004 was used as if it could not have been shared with other SSL structures.
10006 Note that using the SSL API in certain dirty ways now will result
10007 in different behaviour than observed with earlier library versions:
10008 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
10009 does not influence s as it used to.
10011 In order to clean up things more thoroughly, inside SSL_SESSION
10012 we don't use CERT any longer, but a new structure SESS_CERT
10013 that holds per-session data (if available); currently, this is
10014 the peer's certificate chain and, for clients, the server's certificate
10015 and temporary key. CERT holds only those values that can have
10016 meaningful defaults in an SSL_CTX.
10019 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
10020 from the internal representation. Various PKCS#7 fixes: remove some
10021 evil casts and set the enc_dig_alg field properly based on the signing
10025 *) Allow PKCS#12 password to be set from the command line or the
10026 environment. Let 'ca' get its config file name from the environment
10027 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
10031 *) Allow certificate policies extension to use an IA5STRING for the
10032 organization field. This is contrary to the PKIX definition but
10033 VeriSign uses it and IE5 only recognises this form. Document 'x509'
10037 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
10038 without disallowing inline assembler and the like for non-pedantic builds.
10041 *) Support Borland C++ builder.
10042 [Janez Jere <jj@void.si>, modified by Ulf Möller]
10044 *) Support Mingw32.
10047 *) SHA-1 cleanups and performance enhancements.
10048 [Andy Polyakov <appro@fy.chalmers.se>]
10050 *) Sparc v8plus assembler for the bignum library.
10051 [Andy Polyakov <appro@fy.chalmers.se>]
10053 *) Accept any -xxx and +xxx compiler options in Configure.
10056 *) Update HPUX configuration.
10059 *) Add missing sk_<type>_unshift() function to safestack.h
10060 [Ralf S. Engelschall]
10062 *) New function SSL_CTX_use_certificate_chain_file that sets the
10063 "extra_cert"s in addition to the certificate. (This makes sense
10064 only for "PEM" format files, as chains as a whole are not
10068 *) Support verify_depth from the SSL API.
10069 x509_vfy.c had what can be considered an off-by-one-error:
10070 Its depth (which was not part of the external interface)
10071 was actually counting the number of certificates in a chain;
10072 now it really counts the depth.
10075 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
10076 instead of X509err, which often resulted in confusing error
10077 messages since the error codes are not globally unique
10078 (e.g. an alleged error in ssl3_accept when a certificate
10079 didn't match the private key).
10081 *) New function SSL_CTX_set_session_id_context that allows to set a default
10082 value (so that you don't need SSL_set_session_id_context for each
10083 connection using the SSL_CTX).
10086 *) OAEP decoding bug fix.
10089 *) Support INSTALL_PREFIX for package builders, as proposed by
10093 *) New Configure options "threads" and "no-threads". For systems
10094 where the proper compiler options are known (currently Solaris
10095 and Linux), "threads" is the default.
10098 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10101 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10102 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10103 such as /usr/local/bin.
10106 *) "make linux-shared" to build shared libraries.
10107 [Niels Poppe <niels@netbox.org>]
10109 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10112 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10113 extension adding in x509 utility.
10116 *) Remove NOPROTO sections and error code comments.
10119 *) Partial rewrite of the DEF file generator to now parse the ANSI
10123 *) New Configure options --prefix=DIR and --openssldir=DIR.
10126 *) Complete rewrite of the error code script(s). It is all now handled
10127 by one script at the top level which handles error code gathering,
10128 header rewriting and C source file generation. It should be much better
10129 than the old method: it now uses a modified version of Ulf's parser to
10130 read the ANSI prototypes in all header files (thus the old K&R definitions
10131 aren't needed for error creation any more) and do a better job of
10132 translating function codes into names. The old 'ASN1 error code imbedded
10133 in a comment' is no longer necessary and it doesn't use .err files which
10134 have now been deleted. Also the error code call doesn't have to appear all
10135 on one line (which resulted in some large lines...).
10138 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10141 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10142 0 (which usually indicates a closed connection), but continue reading.
10145 *) Fix some race conditions.
10148 *) Add support for CRL distribution points extension. Add Certificate
10149 Policies and CRL distribution points documentation.
10152 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10155 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10156 8 of keying material. Merlin has also confirmed interop with this fix
10157 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10158 [Merlin Hughes <merlin@baltimore.ie>]
10160 *) Fix lots of warnings.
10161 [Richard Levitte <levitte@stacken.kth.se>]
10163 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10164 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10165 [Richard Levitte <levitte@stacken.kth.se>]
10167 *) Fix problems with sizeof(long) == 8.
10168 [Andy Polyakov <appro@fy.chalmers.se>]
10170 *) Change functions to ANSI C.
10173 *) Fix typos in error codes.
10174 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10176 *) Remove defunct assembler files from Configure.
10179 *) SPARC v8 assembler BIGNUM implementation.
10180 [Andy Polyakov <appro@fy.chalmers.se>]
10182 *) Support for Certificate Policies extension: both print and set.
10183 Various additions to support the r2i method this uses.
10186 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10187 return a const string when you are expecting an allocated buffer.
10190 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10191 types DirectoryString and DisplayText.
10194 *) Add code to allow r2i extensions to access the configuration database,
10195 add an LHASH database driver and add several ctx helper functions.
10198 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10199 fail when they extended the size of a BIGNUM.
10202 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10203 support typesafe stack.
10206 *) Fix typo in SSL_[gs]et_options().
10207 [Nils Frostberg <nils@medcom.se>]
10209 *) Delete various functions and files that belonged to the (now obsolete)
10210 old X509V3 handling code.
10213 *) New Configure option "rsaref".
10216 *) Don't auto-generate pem.h.
10219 *) Introduce type-safe ASN.1 SETs.
10222 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10223 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10225 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10226 that links with OpenSSL (well at least cause lots of warnings), but fear
10227 not: the conversion is trivial, and it eliminates loads of evil casts. A
10228 few STACKed things have been converted already. Feel free to convert more.
10229 In the fullness of time, I'll do away with the STACK type altogether.
10232 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10233 specified in <certfile> by updating the entry in the index.txt file.
10234 This way one no longer has to edit the index.txt file manually for
10235 revoking a certificate. The -revoke option does the gory details now.
10236 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10238 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10239 `-text' option at all and this way the `-noout -text' combination was
10240 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10241 [Ralf S. Engelschall]
10243 *) Make sure a corresponding plain text error message exists for the
10244 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10245 verify callback function determined that a certificate was revoked.
10246 [Ralf S. Engelschall]
10248 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10249 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10250 all available cipers including rc5, which was forgotten until now.
10251 In order to let the testing shell script know which algorithms
10252 are available, a new (up to now undocumented) command
10253 "openssl list-cipher-commands" is used.
10256 *) Bugfix: s_client occasionally would sleep in select() when
10257 it should have checked SSL_pending() first.
10260 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10261 the raw DSA values prior to ASN.1 encoding.
10264 *) Tweaks to Configure
10265 [Niels Poppe <niels@netbox.org>]
10267 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10271 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10274 *) New config option to avoid instructions that are illegal on the 80386.
10275 The default code is faster, but requires at least a 486.
10278 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10279 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10280 same as SSL2_VERSION anyway.
10283 *) New "-showcerts" option for s_client.
10286 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10287 application. Various cleanups and fixes.
10290 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10291 modify error routines to work internally. Add error codes and PBE init
10292 to library startup routines.
10295 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10296 packing functions to asn1 and evp. Changed function names and error
10297 codes along the way.
10300 *) PKCS12 integration: and so it begins... First of several patches to
10301 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10302 objects to objects.h
10305 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10306 and display support for Thawte strong extranet extension.
10309 *) Add LinuxPPC support.
10310 [Jeff Dubrule <igor@pobox.org>]
10312 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10313 bn_div_words in alpha.s.
10314 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10316 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10317 OAEP isn't supported when OpenSSL is built with RSAref.
10318 [Ulf Moeller <ulf@fitug.de>]
10320 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10321 so they no longer are missing under -DNOPROTO.
10322 [Soren S. Jorvang <soren@t.dk>]
10325 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10327 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10328 doesn't work when the session is reused. Coming soon!
10331 *) Fix a security hole, that allows sessions to be reused in the wrong
10332 context thus bypassing client cert protection! All software that uses
10333 client certs and session caches in multiple contexts NEEDS PATCHING to
10334 allow session reuse! A fuller solution is in the works.
10335 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10337 *) Some more source tree cleanups (removed obsolete files
10338 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10339 permission on "config" script to be executable) and a fix for the INSTALL
10341 [Ulf Moeller <ulf@fitug.de>]
10343 *) Remove some legacy and erroneous uses of malloc, free instead of
10345 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10347 *) Make rsa_oaep_test return non-zero on error.
10348 [Ulf Moeller <ulf@fitug.de>]
10350 *) Add support for native Solaris shared libraries. Configure
10351 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10352 if someone would make that last step automatic.
10353 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10355 *) ctx_size was not built with the right compiler during "make links". Fixed.
10358 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10359 except NULL ciphers". This means the default cipher list will no longer
10360 enable NULL ciphers. They need to be specifically enabled e.g. with
10361 the string "DEFAULT:eNULL".
10364 *) Fix to RSA private encryption routines: if p < q then it would
10365 occasionally produce an invalid result. This will only happen with
10366 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10369 *) Be less restrictive and allow also `perl util/perlpath.pl
10370 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10371 because this way one can also use an interpreter named `perl5' (which is
10372 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10373 installed as `perl').
10374 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10376 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10377 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10379 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10380 advapi32.lib to Win32 build and change the pem test comparison
10381 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10382 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10383 and crypto/des/ede_cbcm_enc.c.
10386 *) DES quad checksum was broken on big-endian architectures. Fixed.
10389 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10390 Win32 test batch file so it (might) work again. The Win32 test batch file
10391 is horrible: I feel ill....
10394 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10395 in e_os.h. Audit of header files to check ANSI and non ANSI
10396 sections: 10 functions were absent from non ANSI section and not exported
10397 from Windows DLLs. Fixed up libeay.num for new functions.
10400 *) Make `openssl version' output lines consistent.
10401 [Ralf S. Engelschall]
10403 *) Fix Win32 symbol export lists for BIO functions: Added
10404 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10405 to ms/libeay{16,32}.def.
10406 [Ralf S. Engelschall]
10408 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10409 fine under Unix and passes some trivial tests I've now added. But the
10410 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10411 added to make sure no one expects that this stuff really works in the
10412 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10413 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10415 [Ralf S. Engelschall]
10417 *) Fix the generation of two part addresses in perl.
10418 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10420 *) Add config entry for Linux on MIPS.
10421 [John Tobey <jtobey@channel1.com>]
10423 *) Make links whenever Configure is run, unless we are on Windoze.
10426 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10427 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10431 *) Add a useful kludge to allow package maintainers to specify compiler and
10432 other platforms details on the command line without having to patch the
10433 Configure script everytime: One now can use ``perl Configure
10434 <id>:<details>'', i.e. platform ids are allowed to have details appended
10435 to them (separated by colons). This is treated as there would be a static
10436 pre-configured entry in Configure's %table under key <id> with value
10437 <details> and ``perl Configure <id>'' is called. So, when you want to
10438 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10439 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10440 now, which overrides the FreeBSD-elf entry on-the-fly.
10441 [Ralf S. Engelschall]
10443 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10446 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10447 on the `perl Configure ...' command line. This way one can compile
10448 OpenSSL libraries with Position Independent Code (PIC) which is needed
10449 for linking it into DSOs.
10450 [Ralf S. Engelschall]
10452 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10456 *) Cleaned up the LICENSE document: The official contact for any license
10457 questions now is the OpenSSL core team under openssl-core@openssl.org.
10458 And add a paragraph about the dual-license situation to make sure people
10459 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
10460 to the OpenSSL toolkit.
10461 [Ralf S. Engelschall]
10463 *) General source tree makefile cleanups: Made `making xxx in yyy...'
10464 display consistent in the source tree and replaced `/bin/rm' by `rm'.
10465 Additionally cleaned up the `make links' target: Remove unnecessary
10466 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
10467 to speed processing and no longer clutter the display with confusing
10468 stuff. Instead only the actually done links are displayed.
10469 [Ralf S. Engelschall]
10471 *) Permit null encryption ciphersuites, used for authentication only. It used
10472 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
10473 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
10477 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
10478 signed attributes when verifying signatures (this would break them),
10479 the detached data encoding was wrong and public keys obtained using
10480 X509_get_pubkey() weren't freed.
10483 *) Add text documentation for the BUFFER functions. Also added a work around
10484 to a Win95 console bug. This was triggered by the password read stuff: the
10485 last character typed gets carried over to the next fread(). If you were
10486 generating a new cert request using 'req' for example then the last
10487 character of the passphrase would be CR which would then enter the first
10491 *) Added the new `Includes OpenSSL Cryptography Software' button as
10492 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
10493 button and can be used by applications based on OpenSSL to show the
10494 relationship to the OpenSSL project.
10495 [Ralf S. Engelschall]
10497 *) Remove confusing variables in function signatures in files
10498 ssl/ssl_lib.c and ssl/ssl.h.
10499 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10501 *) Don't install bss_file.c under PREFIX/include/
10502 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10504 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
10505 functions that return function pointers and has support for NT specific
10506 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
10507 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
10508 unsigned to signed types: this was killing the Win32 compile.
10511 *) Add new certificate file to stack functions,
10512 SSL_add_dir_cert_subjects_to_stack() and
10513 SSL_add_file_cert_subjects_to_stack(). These largely supplant
10514 SSL_load_client_CA_file(), and can be used to add multiple certs easily
10515 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10516 This means that Apache-SSL and similar packages don't have to mess around
10517 to add as many CAs as they want to the preferred list.
10520 *) Experiment with doxygen documentation. Currently only partially applied to
10522 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
10523 openssl.doxy as the configuration file.
10526 *) Get rid of remaining C++-style comments which strict C compilers hate.
10527 [Ralf S. Engelschall, pointed out by Carlos Amengual]
10529 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
10530 compiled in by default: it has problems with large keys.
10533 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
10534 DH private keys and/or callback functions which directly correspond to
10535 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
10536 is needed for applications which have to configure certificates on a
10537 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
10539 For the RSA certificate situation is makes no difference, but
10540 for the DSA certificate situation this fixes the "no shared cipher"
10541 problem where the OpenSSL cipher selection procedure failed because the
10542 temporary keys were not overtaken from the context and the API provided
10543 no way to reconfigure them.
10544 The new functions now let applications reconfigure the stuff and they
10545 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
10546 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
10547 non-public-API function ssl_cert_instantiate() is used as a helper
10548 function and also to reduce code redundancy inside ssl_rsa.c.
10549 [Ralf S. Engelschall]
10551 *) Move s_server -dcert and -dkey options out of the undocumented feature
10552 area because they are useful for the DSA situation and should be
10553 recognized by the users.
10554 [Ralf S. Engelschall]
10556 *) Fix the cipher decision scheme for export ciphers: the export bits are
10557 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
10558 SSL_EXP_MASK. So, the original variable has to be used instead of the
10559 already masked variable.
10560 [Richard Levitte <levitte@stacken.kth.se>]
10562 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
10563 [Richard Levitte <levitte@stacken.kth.se>]
10565 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
10566 from `int' to `unsigned int' because it's a length and initialized by
10567 EVP_DigestFinal() which expects an `unsigned int *'.
10568 [Richard Levitte <levitte@stacken.kth.se>]
10570 *) Don't hard-code path to Perl interpreter on shebang line of Configure
10571 script. Instead use the usual Shell->Perl transition trick.
10572 [Ralf S. Engelschall]
10574 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
10575 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10576 -noout -modulus' as it's already the case for `openssl rsa -noout
10577 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10578 currently the public key is printed (a decision which was already done by
10579 `openssl dsa -modulus' in the past) which serves a similar purpose.
10580 Additionally the NO_RSA no longer completely removes the whole -modulus
10581 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10583 [Ralf S. Engelschall]
10585 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10586 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10587 [Arne Ansper <arne@ats.cyber.ee>]
10589 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10590 to be added. Now both 'req' and 'ca' can use new objects defined in the
10594 *) Add cool BIO that does syslog (or event log on NT).
10595 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10597 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10598 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10599 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10600 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10603 *) Add preliminary config info for new extension code.
10606 *) Make RSA_NO_PADDING really use no padding.
10607 [Ulf Moeller <ulf@fitug.de>]
10609 *) Generate errors when private/public key check is done.
10612 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10613 for some CRL extensions and new objects added.
10616 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10617 key usage extension and fuller support for authority key id.
10620 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10621 padding method for RSA, which is recommended for new applications in PKCS
10622 #1 v2.0 (RFC 2437, October 1998).
10623 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10624 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10625 against Bleichbacher's attack on RSA.
10626 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10629 *) Updates to the new SSL compression code
10630 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10632 *) Fix so that the version number in the master secret, when passed
10633 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10634 (because the server will not accept higher), that the version number
10635 is 0x03,0x01, not 0x03,0x00
10636 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10638 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10639 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10640 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10643 *) Support for RAW extensions where an arbitrary extension can be
10644 created by including its DER encoding. See apps/openssl.cnf for
10648 *) Make sure latest Perl versions don't interpret some generated C array
10649 code as Perl array code in the crypto/err/err_genc.pl script.
10650 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10652 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10653 not many people have the assembler. Various Win32 compilation fixes and
10654 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10655 build instructions.
10658 *) Modify configure script 'Configure' to automatically create crypto/date.h
10659 file under Win32 and also build pem.h from pem.org. New script
10660 util/mkfiles.pl to create the MINFO file on environments that can't do a
10661 'make files': perl util/mkfiles.pl >MINFO should work.
10664 *) Major rework of DES function declarations, in the pursuit of correctness
10665 and purity. As a result, many evil casts evaporated, and some weirdness,
10666 too. You may find this causes warnings in your code. Zapping your evil
10667 casts will probably fix them. Mostly.
10670 *) Fix for a typo in asn1.h. Bug fix to object creation script
10671 obj_dat.pl. It considered a zero in an object definition to mean
10672 "end of object": none of the objects in objects.h have any zeros
10673 so it wasn't spotted.
10674 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10676 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10677 Masking (CBCM). In the absence of test vectors, the best I have been able
10678 to do is check that the decrypt undoes the encrypt, so far. Send me test
10679 vectors if you have them.
10682 *) Correct calculation of key length for export ciphers (too much space was
10683 allocated for null ciphers). This has not been tested!
10686 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10687 message is now correct (it understands "crypto" and "ssl" on its
10688 command line). There is also now an "update" option. This will update
10689 the util/ssleay.num and util/libeay.num files with any new functions.
10691 perl util/mkdef.pl crypto ssl update
10692 it will update them.
10695 *) Overhauled the Perl interface (perl/*):
10696 - ported BN stuff to OpenSSL's different BN library
10697 - made the perl/ source tree CVS-aware
10698 - renamed the package from SSLeay to OpenSSL (the files still contain
10699 their history because I've copied them in the repository)
10700 - removed obsolete files (the test scripts will be replaced
10701 by better Test::Harness variants in the future)
10702 [Ralf S. Engelschall]
10704 *) First cut for a very conservative source tree cleanup:
10705 1. merge various obsolete readme texts into doc/ssleay.txt
10706 where we collect the old documents and readme texts.
10707 2. remove the first part of files where I'm already sure that we no
10708 longer need them because of three reasons: either they are just temporary
10709 files which were left by Eric or they are preserved original files where
10710 I've verified that the diff is also available in the CVS via "cvs diff
10711 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10712 the crypto/md/ stuff).
10713 [Ralf S. Engelschall]
10715 *) More extension code. Incomplete support for subject and issuer alt
10716 name, issuer and authority key id. Change the i2v function parameters
10717 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10718 what that's for :-) Fix to ASN1 macro which messed up
10719 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10722 *) Preliminary support for ENUMERATED type. This is largely copied from the
10726 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10727 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10729 *) Make sure `make rehash' target really finds the `openssl' program.
10730 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10732 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10733 like to hear about it if this slows down other processors.
10736 *) Add CygWin32 platform information to Configure script.
10737 [Alan Batie <batie@aahz.jf.intel.com>]
10739 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10740 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10742 *) New program nseq to manipulate netscape certificate sequences
10745 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10749 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10750 but the BN code had some problems that would cause failures when
10751 doing certificate verification and some other functions.
10752 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10754 *) Add ASN1 and PEM code to support netscape certificate sequences.
10757 *) Add ASN1 and PEM code to support netscape certificate sequences.
10760 *) Add several PKIX and private extended key usage OIDs.
10763 *) Modify the 'ca' program to handle the new extension code. Modify
10764 openssl.cnf for new extension format, add comments.
10767 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10768 and add a sample to openssl.cnf so req -x509 now adds appropriate
10772 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10773 error code, add initial support to X509_print() and x509 application.
10776 *) Takes a deep breath and start adding X509 V3 extension support code. Add
10777 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10778 stuff is currently isolated and isn't even compiled yet.
10781 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10782 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10783 Removed the versions check from X509 routines when loading extensions:
10784 this allows certain broken certificates that don't set the version
10785 properly to be processed.
10788 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10789 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10790 can still be regenerated with "make depend".
10793 *) Spelling mistake in C version of CAST-128.
10794 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10796 *) Changes to the error generation code. The perl script err-code.pl
10797 now reads in the old error codes and retains the old numbers, only
10798 adding new ones if necessary. It also only changes the .err files if new
10799 codes are added. The makefiles have been modified to only insert errors
10800 when needed (to avoid needlessly modifying header files). This is done
10801 by only inserting errors if the .err file is newer than the auto generated
10802 C file. To rebuild all the error codes from scratch (the old behaviour)
10803 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10804 or delete all the .err files.
10807 *) CAST-128 was incorrectly implemented for short keys. The C version has
10808 been fixed, but is untested. The assembler versions are also fixed, but
10809 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10810 to regenerate it if needed.
10811 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10812 Hagino <itojun@kame.net>]
10814 *) File was opened incorrectly in randfile.c.
10815 [Ulf Möller <ulf@fitug.de>]
10817 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10818 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10819 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10820 al: it's just almost always a UTCTime. Note this patch adds new error
10821 codes so do a "make errors" if there are problems.
10824 *) Correct Linux 1 recognition in config.
10825 [Ulf Möller <ulf@fitug.de>]
10827 *) Remove pointless MD5 hash when using DSA keys in ca.
10828 [Anonymous <nobody@replay.com>]
10830 *) Generate an error if given an empty string as a cert directory. Also
10831 generate an error if handed NULL (previously returned 0 to indicate an
10832 error, but didn't set one).
10833 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10835 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10838 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10839 parameters. This was causing a warning which killed off the Win32 compile.
10842 *) Remove C++ style comments from crypto/bn/bn_local.h.
10843 [Neil Costigan <neil.costigan@celocom.com>]
10845 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10846 based on a text string, looking up short and long names and finally
10847 "dot" format. The "dot" format stuff didn't work. Added new function
10848 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10849 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10850 OID is not part of the table.
10853 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10854 X509_LOOKUP_by_alias().
10857 *) Sort openssl functions by name.
10860 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10861 encryption from sample DSA keys (in case anyone is interested the password
10865 *) Make _all_ *_free functions accept a NULL pointer.
10866 [Frans Heymans <fheymans@isaserver.be>]
10868 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10870 [Anonymous <nobody@replay.com>]
10872 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10873 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10875 *) Don't blow it for numeric -newkey arguments to apps/req.
10876 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10878 *) Temp key "for export" tests were wrong in s3_srvr.c.
10879 [Anonymous <nobody@replay.com>]
10881 *) Add prototype for temp key callback functions
10882 SSL_CTX_set_tmp_{rsa,dh}_callback().
10885 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10886 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10889 *) X509_name_add_entry() freed the wrong thing after an error.
10890 [Arne Ansper <arne@ats.cyber.ee>]
10892 *) rsa_eay.c would attempt to free a NULL context.
10893 [Arne Ansper <arne@ats.cyber.ee>]
10895 *) BIO_s_socket() had a broken should_retry() on Windoze.
10896 [Arne Ansper <arne@ats.cyber.ee>]
10898 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10899 [Arne Ansper <arne@ats.cyber.ee>]
10901 *) Make sure the already existing X509_STORE->depth variable is initialized
10902 in X509_STORE_new(), but document the fact that this variable is still
10903 unused in the certificate verification process.
10904 [Ralf S. Engelschall]
10906 *) Fix the various library and apps files to free up pkeys obtained from
10907 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10910 *) Fix reference counting in X509_PUBKEY_get(). This makes
10911 demos/maurice/example2.c work, amongst others, probably.
10912 [Steve Henson and Ben Laurie]
10914 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10915 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10916 are no longer created. This way we have a single and consistent command
10917 line interface `openssl <command>', similar to `cvs <command>'.
10918 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10920 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10921 BIT STRING wrapper always have zero unused bits.
10924 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10927 *) Make the top-level INSTALL documentation easier to understand.
10930 *) Makefiles updated to exit if an error occurs in a sub-directory
10931 make (including if user presses ^C) [Paul Sutton]
10933 *) Make Montgomery context stuff explicit in RSA data structure.
10936 *) Fix build order of pem and err to allow for generated pem.h.
10939 *) Fix renumbering bug in X509_NAME_delete_entry().
10942 *) Enhanced the err-ins.pl script so it makes the error library number
10943 global and can add a library name. This is needed for external ASN1 and
10944 other error libraries.
10947 *) Fixed sk_insert which never worked properly.
10950 *) Fix ASN1 macros so they can handle indefinite length constructed
10951 EXPLICIT tags. Some non standard certificates use these: they can now
10955 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10956 into a single doc/ssleay.txt bundle. This way the information is still
10957 preserved but no longer messes up this directory. Now it's new room for
10958 the new set of documentation files.
10959 [Ralf S. Engelschall]
10961 *) SETs were incorrectly DER encoded. This was a major pain, because they
10962 shared code with SEQUENCEs, which aren't coded the same. This means that
10963 almost everything to do with SETs or SEQUENCEs has either changed name or
10964 number of arguments.
10965 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10967 *) Fix test data to work with the above.
10970 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10971 was already fixed by Eric for 0.9.1 it seems.
10972 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10974 *) Autodetect FreeBSD3.
10977 *) Fix various bugs in Configure. This affects the following platforms:
10981 unixware-2.0-pentium
10985 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10986 before they are needed.
10989 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10993 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10995 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10996 changed SSLeay to OpenSSL in version strings.
10997 [Ralf S. Engelschall]
10999 *) Some fixups to the top-level documents.
11002 *) Fixed the nasty bug where rsaref.h was not found under compile-time
11003 because the symlink to include/ was missing.
11004 [Ralf S. Engelschall]
11006 *) Incorporated the popular no-RSA/DSA-only patches
11007 which allow to compile a RSA-free SSLeay.
11008 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
11010 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
11011 when "ssleay" is still not found.
11012 [Ralf S. Engelschall]
11014 *) Added more platforms to Configure: Cray T3E, HPUX 11,
11015 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
11017 *) Updated the README file.
11018 [Ralf S. Engelschall]
11020 *) Added various .cvsignore files in the CVS repository subdirs
11021 to make a "cvs update" really silent.
11022 [Ralf S. Engelschall]
11024 *) Recompiled the error-definition header files and added
11025 missing symbols to the Win32 linker tables.
11026 [Ralf S. Engelschall]
11028 *) Cleaned up the top-level documents;
11029 o new files: CHANGES and LICENSE
11030 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
11031 o merged COPYRIGHT into LICENSE
11032 o removed obsolete TODO file
11033 o renamed MICROSOFT to INSTALL.W32
11034 [Ralf S. Engelschall]
11036 *) Removed dummy files from the 0.9.1b source tree:
11037 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
11038 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
11039 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
11040 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
11041 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
11042 [Ralf S. Engelschall]
11044 *) Added various platform portability fixes.
11047 *) The Genesis of the OpenSSL rpject:
11048 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
11049 Young and Tim J. Hudson created while they were working for C2Net until
11051 [The OpenSSL Project]
11054 Changes between 0.9.0b and 0.9.1b [not released]
11056 *) Updated a few CA certificates under certs/
11059 *) Changed some BIGNUM api stuff.
11062 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
11063 DGUX x86, Linux Alpha, etc.
11066 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
11067 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
11071 *) Add -strparse option to asn1pars program which parses nested
11073 [Dr Stephen Henson <shenson@bigfoot.com>]
11075 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
11078 *) DSA fix for "ca" program.
11081 *) Added "-genkey" option to "dsaparam" program.
11084 *) Added RIPE MD160 (rmd160) message digest.
11087 *) Added -a (all) option to "ssleay version" command.
11090 *) Added PLATFORM define which is the id given to Configure.
11093 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11096 *) Extended the ASN.1 parser routines.
11099 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11102 *) Added a BN_CTX to the BN library.
11105 *) Fixed the weak key values in DES library
11108 *) Changed API in EVP library for cipher aliases.
11111 *) Added support for RC2/64bit cipher.
11114 *) Converted the lhash library to the crypto/mem.c functions.
11117 *) Added more recognized ASN.1 object ids.
11120 *) Added more RSA padding checks for SSL/TLS.
11123 *) Added BIO proxy/filter functionality.
11126 *) Added extra_certs to SSL_CTX which can be used
11127 send extra CA certificates to the client in the CA cert chain sending
11128 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11131 *) Now Fortezza is denied in the authentication phase because
11132 this is key exchange mechanism is not supported by SSLeay at all.
11135 *) Additional PKCS1 checks.
11138 *) Support the string "TLSv1" for all TLS v1 ciphers.
11141 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11142 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11145 *) Fixed a few memory leaks.
11148 *) Fixed various code and comment typos.
11151 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11152 bytes sent in the client random.
11153 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob