5 Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
7 *) Experimental support for a new, fast, unbiased prime candidate generator,
8 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
9 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
11 *) New output format NSS in the sess_id command line tool. This allows
12 exporting the session id and the master key in NSS keylog format.
13 [Martin Kaiser <martin@kaiser.cx>]
15 *) Harmonize version and its documentation. -f flag is used to display
17 [mancha <mancha1@zoho.com>]
19 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
21 [mancha <mancha1@zoho.com>]
23 *) Fix some double frees. These are not thought to be exploitable.
24 [mancha <mancha1@zoho.com>]
26 *) A missing bounds check in the handling of the TLS heartbeat extension
27 can be used to reveal up to 64k of memory to a connected client or
30 Thanks for Neel Mehta of Google Security for discovering this bug and to
31 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
32 preparing the fix (CVE-2014-0160)
33 [Adam Langley, Bodo Moeller]
35 *) Fix for the attack described in the paper "Recovering OpenSSL
36 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
37 by Yuval Yarom and Naomi Benger. Details can be obtained from:
38 http://eprint.iacr.org/2014/140
40 Thanks to Yuval Yarom and Naomi Benger for discovering this
41 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
42 [Yuval Yarom and Naomi Benger]
44 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
45 this fixes a limitation in previous versions of OpenSSL.
48 *) Experimental encrypt-then-mac support.
50 Experimental support for encrypt then mac from
51 draft-gutmann-tls-encrypt-then-mac-02.txt
53 To enable it set the appropriate extension number (0x42 for the test
54 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
56 For non-compliant peers (i.e. just about everything) this should have no
59 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
63 *) Add EVP support for key wrapping algorithms, to avoid problems with
64 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
65 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
66 algorithms and include tests cases.
69 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
73 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
74 MGF1 digest and OAEP label.
77 *) Make openssl verify return errors.
78 [Chris Palmer <palmer@google.com> and Ben Laurie]
80 *) New function ASN1_TIME_diff to calculate the difference between two
81 ASN1_TIME structures or one structure and the current time.
84 *) Update fips_test_suite to support multiple command line options. New
85 test to induce all self test errors in sequence and check expected
89 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
90 sign or verify all in one operation.
93 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
94 test programs and fips_test_suite. Includes functionality to parse
95 the minimal script output of fipsalgest.pl directly.
98 *) Add authorisation parameter to FIPS_module_mode_set().
101 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
104 *) Use separate DRBG fields for internal and external flags. New function
105 FIPS_drbg_health_check() to perform on demand health checking. Add
106 generation tests to fips_test_suite with reduced health check interval to
107 demonstrate periodic health checking. Add "nodh" option to
108 fips_test_suite to skip very slow DH test.
111 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
115 *) More extensive health check for DRBG checking many more failure modes.
116 New function FIPS_selftest_drbg_all() to handle every possible DRBG
117 combination: call this in fips_test_suite.
120 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
121 and POST to handle Dual EC cases.
124 *) Add support for canonical generation of DSA parameter 'g'. See
127 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
128 POST to handle HMAC cases.
131 *) Add functions FIPS_module_version() and FIPS_module_version_text()
132 to return numerical and string versions of the FIPS module number.
135 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
136 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
137 outside the validated module in the FIPS capable OpenSSL.
140 *) Minor change to DRBG entropy callback semantics. In some cases
141 there is no multiple of the block length between min_len and
142 max_len. Allow the callback to return more than max_len bytes
143 of entropy but discard any extra: it is the callback's responsibility
144 to ensure that the extra data discarded does not impact the
145 requested amount of entropy.
148 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
149 information in FIPS186-3, SP800-57 and SP800-131A.
152 *) CCM support via EVP. Interface is very similar to GCM case except we
153 must supply all data in one chunk (i.e. no update, final) and the
154 message length must be supplied if AAD is used. Add algorithm test
158 *) Initial version of POST overhaul. Add POST callback to allow the status
159 of POST to be monitored and/or failures induced. Modify fips_test_suite
160 to use callback. Always run all selftests even if one fails.
163 *) XTS support including algorithm test driver in the fips_gcmtest program.
164 Note: this does increase the maximum key length from 32 to 64 bytes but
165 there should be no binary compatibility issues as existing applications
166 will never use XTS mode.
169 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
170 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
171 performs algorithm blocking for unapproved PRNG types. Also do not
172 set PRNG type in FIPS_mode_set(): leave this to the application.
173 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
174 the standard OpenSSL PRNG: set additional data to a date time vector.
177 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
178 This shouldn't present any incompatibility problems because applications
179 shouldn't be using these directly and any that are will need to rethink
180 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
183 *) Extensive self tests and health checking required by SP800-90 DRBG.
184 Remove strength parameter from FIPS_drbg_instantiate and always
185 instantiate at maximum supported strength.
188 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
191 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
194 *) New function DH_compute_key_padded() to compute a DH key and pad with
195 leading zeroes if needed: this complies with SP800-56A et al.
198 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
199 anything, incomplete, subject to change and largely untested at present.
202 *) Modify fipscanisteronly build option to only build the necessary object
203 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
206 *) Add experimental option FIPSSYMS to give all symbols in
207 fipscanister.o and FIPS or fips prefix. This will avoid
208 conflicts with future versions of OpenSSL. Add perl script
209 util/fipsas.pl to preprocess assembly language source files
210 and rename any affected symbols.
213 *) Add selftest checks and algorithm block of non-fips algorithms in
214 FIPS mode. Remove DES2 from selftests.
217 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
218 return internal method without any ENGINE dependencies. Add new
219 tiny fips sign and verify functions.
222 *) New build option no-ec2m to disable characteristic 2 code.
225 *) New build option "fipscanisteronly". This only builds fipscanister.o
226 and (currently) associated fips utilities. Uses the file Makefile.fips
227 instead of Makefile.org as the prototype.
230 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
231 Update fips_gcmtest to use IV generator.
234 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
235 setting output buffer to NULL. The *Final function must be
236 called although it will not retrieve any additional data. The tag
237 can be set or retrieved with a ctrl. The IV length is by default 12
238 bytes (96 bits) but can be set to an alternative value. If the IV
239 length exceeds the maximum IV length (currently 16 bytes) it cannot be
243 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
244 underlying do_cipher function handles all cipher semantics itself
245 including padding and finalisation. This is useful if (for example)
246 an ENGINE cipher handles block padding itself. The behaviour of
247 do_cipher is subtly changed if this flag is set: the return value
248 is the number of characters written to the output buffer (zero is
249 no longer an error code) or a negative error code. Also if the
250 input buffer is NULL and length 0 finalisation should be performed.
253 *) If a candidate issuer certificate is already part of the constructed
254 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
257 *) Improve forward-security support: add functions
259 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
260 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
262 for use by SSL/TLS servers; the callback function will be called whenever a
263 new session is created, and gets to decide whether the session may be
264 cached to make it resumable (return 0) or not (return 1). (As by the
265 SSL/TLS protocol specifications, the session_id sent by the server will be
266 empty to indicate that the session is not resumable; also, the server will
267 not generate RFC 4507 (RFC 5077) session tickets.)
269 A simple reasonable callback implementation is to return is_forward_secure.
270 This parameter will be set to 1 or 0 depending on the ciphersuite selected
271 by the SSL/TLS server library, indicating whether it can provide forward
273 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
275 *) New -verify_name option in command line utilities to set verification
279 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
280 Add CMAC pkey methods.
283 *) Experimental renegotiation in s_server -www mode. If the client
284 browses /reneg connection is renegotiated. If /renegcert it is
285 renegotiated requesting a certificate.
288 *) Add an "external" session cache for debugging purposes to s_server. This
289 should help trace issues which normally are only apparent in deployed
290 multi-process servers.
293 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
294 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
295 BIO_set_cipher() and some obscure PEM functions were changed so they
296 can now return an error. The RAND changes required a change to the
297 RAND_METHOD structure.
300 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
301 a gcc attribute to warn if the result of a function is ignored. This
302 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
303 whose return value is often ignored.
306 Changes between 1.0.1j and 1.0.2 [xx XXX xxxx]
308 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
309 (other platforms pending).
310 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
312 *) Add support for the SignedCertificateTimestampList certificate and
313 OCSP response extensions from RFC6962.
316 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
317 for corner cases. (Certain input points at infinity could lead to
318 bogus results, with non-infinity inputs mapped to infinity too.)
321 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
322 This covers AES, SHA256/512 and GHASH. "Initial" means that most
323 common cases are optimized and there still is room for further
324 improvements. Vector Permutation AES for Altivec is also added.
327 *) Add support for little-endian ppc64 Linux target.
328 [Marcelo Cerri (IBM)]
330 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
331 SHA1, SHA256 and GHASH. "Initial" means that most common cases
332 are optimized and there still is room for further improvements.
333 Both 32- and 64-bit modes are supported.
334 [Andy Polyakov, Ard Biesheuvel (Linaro)]
336 *) Improved ARMv7 NEON support.
339 *) Support for SPARC Architecture 2011 crypto extensions, first
340 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
341 SHA256/512, MD5, GHASH and modular exponentiation.
342 [Andy Polyakov, David Miller]
344 *) Accelerated modular exponentiation for Intel processors, a.k.a.
346 [Shay Gueron & Vlad Krasnov (Intel Corp)]
348 *) Support for new and upcoming Intel processors, including AVX2,
349 BMI and SHA ISA extensions. This includes additional "stitched"
350 implementations, AESNI-SHA256 and GCM, and multi-buffer support
353 This work was sponsored by Intel Corp.
356 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
357 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
358 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
361 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
362 this fixes a limiation in previous versions of OpenSSL.
365 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
366 MGF1 digest and OAEP label.
369 *) Add EVP support for key wrapping algorithms, to avoid problems with
370 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
371 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
372 algorithms and include tests cases.
375 *) Add functions to allocate and set the fields of an ECDSA_METHOD
377 [Douglas E. Engert, Steve Henson]
379 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
380 difference in days and seconds between two tm or ASN1_TIME structures.
383 *) Add -rev test option to s_server to just reverse order of characters
384 received by client and send back to server. Also prints an abbreviated
385 summary of the connection parameters.
388 *) New option -brief for s_client and s_server to print out a brief summary
389 of connection parameters.
392 *) Add callbacks for arbitrary TLS extensions.
393 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
395 *) New option -crl_download in several openssl utilities to download CRLs
396 from CRLDP extension in certificates.
399 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
402 *) New function X509_CRL_diff to generate a delta CRL from the difference
403 of two full CRLs. Add support to "crl" utility.
406 *) New functions to set lookup_crls function and to retrieve
407 X509_STORE from X509_STORE_CTX.
410 *) Print out deprecated issuer and subject unique ID fields in
414 *) Extend OCSP I/O functions so they can be used for simple general purpose
415 HTTP as well as OCSP. New wrapper function which can be used to download
416 CRLs using the OCSP API.
419 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
422 *) SSL_CONF* functions. These provide a common framework for application
423 configuration using configuration files or command lines.
426 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
427 message callback and prints the results. Needs compile time option
428 "enable-ssl-trace". New options to s_client and s_server to enable
432 *) New ctrl and macro to retrieve supported points extensions.
433 Print out extension in s_server and s_client.
436 *) New functions to retrieve certificate signature and signature
440 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
444 *) New Suite B modes for TLS code. These use and enforce the requirements
445 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
446 only use Suite B curves. The Suite B modes can be set by using the
447 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
450 *) New chain verification flags for Suite B levels of security. Check
451 algorithms are acceptable when flags are set in X509_verify_cert.
454 *) Make tls1_check_chain return a set of flags indicating checks passed
455 by a certificate chain. Add additional tests to handle client
456 certificates: checks for matching certificate type and issuer name
460 *) If an attempt is made to use a signature algorithm not in the peer
461 preference list abort the handshake. If client has no suitable
462 signature algorithms in response to a certificate request do not
466 *) If server EC tmp key is not in client preference list abort handshake.
469 *) Add support for certificate stores in CERT structure. This makes it
470 possible to have different stores per SSL structure or one store in
471 the parent SSL_CTX. Include distint stores for certificate chain
472 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
473 to build and store a certificate chain in CERT structure: returing
474 an error if the chain cannot be built: this will allow applications
475 to test if a chain is correctly configured.
477 Note: if the CERT based stores are not set then the parent SSL_CTX
478 store is used to retain compatibility with existing behaviour.
482 *) New function ssl_set_client_disabled to set a ciphersuite disabled
483 mask based on the current session, check mask when sending client
484 hello and checking the requested ciphersuite.
487 *) New ctrls to retrieve and set certificate types in a certificate
488 request message. Print out received values in s_client. If certificate
489 types is not set with custom values set sensible values based on
490 supported signature algorithms.
493 *) Support for distinct client and server supported signature algorithms.
496 *) Add certificate callback. If set this is called whenever a certificate
497 is required by client or server. An application can decide which
498 certificate chain to present based on arbitrary criteria: for example
499 supported signature algorithms. Add very simple example to s_server.
500 This fixes many of the problems and restrictions of the existing client
501 certificate callback: for example you can now clear an existing
502 certificate and specify the whole chain.
505 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
506 the certificate can be used for (if anything). Set valid_flags field
507 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
508 to have similar checks in it.
510 Add new "cert_flags" field to CERT structure and include a "strict mode".
511 This enforces some TLS certificate requirements (such as only permitting
512 certificate signature algorithms contained in the supported algorithms
513 extension) which some implementations ignore: this option should be used
514 with caution as it could cause interoperability issues.
517 *) Update and tidy signature algorithm extension processing. Work out
518 shared signature algorithms based on preferences and peer algorithms
519 and print them out in s_client and s_server. Abort handshake if no
520 shared signature algorithms.
523 *) Add new functions to allow customised supported signature algorithms
524 for SSL and SSL_CTX structures. Add options to s_client and s_server
528 *) New function SSL_certs_clear() to delete all references to certificates
529 from an SSL structure. Before this once a certificate had been added
530 it couldn't be removed.
533 *) Integrate hostname, email address and IP address checking with certificate
534 verification. New verify options supporting checking in opensl utility.
537 *) Fixes and wildcard matching support to hostname and email checking
538 functions. Add manual page.
539 [Florian Weimer (Red Hat Product Security Team)]
541 *) New functions to check a hostname email or IP address against a
542 certificate. Add options x509 utility to print results of checks against
546 *) Fix OCSP checking.
547 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
549 *) Initial experimental support for explicitly trusted non-root CAs.
550 OpenSSL still tries to build a complete chain to a root but if an
551 intermediate CA has a trust setting included that is used. The first
552 setting is used: whether to trust (e.g., -addtrust option to the x509
556 *) Add -trusted_first option which attempts to find certificates in the
557 trusted store even if an untrusted chain is also supplied.
560 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
561 platform support for Linux and Android.
564 *) Support for linux-x32, ILP32 environment in x86_64 framework.
567 *) Experimental multi-implementation support for FIPS capable OpenSSL.
568 When in FIPS mode the approved implementations are used as normal,
569 when not in FIPS mode the internal unapproved versions are used instead.
570 This means that the FIPS capable OpenSSL isn't forced to use the
571 (often lower performance) FIPS implementations outside FIPS mode.
574 *) Transparently support X9.42 DH parameters when calling
575 PEM_read_bio_DHparameters. This means existing applications can handle
576 the new parameter format automatically.
579 *) Initial experimental support for X9.42 DH parameter format: mainly
580 to support use of 'q' parameter for RFC5114 parameters.
583 *) Add DH parameters from RFC5114 including test data to dhtest.
586 *) Support for automatic EC temporary key parameter selection. If enabled
587 the most preferred EC parameters are automatically used instead of
588 hardcoded fixed parameters. Now a server just has to call:
589 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
590 support ECDH and use the most appropriate parameters.
593 *) Enhance and tidy EC curve and point format TLS extension code. Use
594 static structures instead of allocation if default values are used.
595 New ctrls to set curves we wish to support and to retrieve shared curves.
596 Print out shared curves in s_server. New options to s_server and s_client
597 to set list of supported curves.
600 *) New ctrls to retrieve supported signature algorithms and
601 supported curve values as an array of NIDs. Extend openssl utility
602 to print out received values.
605 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
606 between NIDs and the more common NIST names such as "P-256". Enhance
607 ecparam utility and ECC method to recognise the NIST names for curves.
610 *) Enhance SSL/TLS certificate chain handling to support different
611 chains for each certificate instead of one chain in the parent SSL_CTX.
614 *) Support for fixed DH ciphersuite client authentication: where both
615 server and client use DH certificates with common parameters.
618 *) Support for fixed DH ciphersuites: those requiring DH server
622 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
624 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
625 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
626 X509_CINF_get_signature were reverted post internal team review.
628 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
632 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
633 sends a carefully crafted handshake message, to cause OpenSSL to fail
634 to free up to 64k of memory causing a memory leak. This could be
635 exploited in a Denial Of Service attack. This issue affects OpenSSL
636 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
637 whether SRTP is used or configured. Implementations of OpenSSL that
638 have been compiled with OPENSSL_NO_SRTP defined are not affected.
640 The fix was developed by the OpenSSL team.
644 *) Session Ticket Memory Leak.
646 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
647 integrity of that ticket is first verified. In the event of a session
648 ticket integrity check failing, OpenSSL will fail to free memory
649 causing a memory leak. By sending a large number of invalid session
650 tickets an attacker could exploit this issue in a Denial Of Service
655 *) Build option no-ssl3 is incomplete.
657 When OpenSSL is configured with "no-ssl3" as a build option, servers
658 could accept and complete a SSL 3.0 handshake, and clients could be
659 configured to send them.
661 [Akamai and the OpenSSL team]
663 *) Add support for TLS_FALLBACK_SCSV.
664 Client applications doing fallback retries should call
665 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
667 [Adam Langley, Bodo Moeller]
669 *) Add additional DigestInfo checks.
671 Reencode DigestInto in DER and check against the original when
672 verifying RSA signature: this will reject any improperly encoded
673 DigestInfo structures.
675 Note: this is a precautionary measure and no attacks are currently known.
679 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
681 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
682 SRP code can be overrun an internal buffer. Add sanity check that
683 g, A, B < N to SRP code.
685 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
686 Group for discovering this issue.
690 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
691 TLS 1.0 instead of higher protocol versions when the ClientHello message
692 is badly fragmented. This allows a man-in-the-middle attacker to force a
693 downgrade to TLS 1.0 even if both the server and the client support a
694 higher protocol version, by modifying the client's TLS records.
696 Thanks to David Benjamin and Adam Langley (Google) for discovering and
697 researching this issue.
701 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
702 to a denial of service attack. A malicious server can crash the client
703 with a null pointer dereference (read) by specifying an anonymous (EC)DH
704 ciphersuite and sending carefully crafted handshake messages.
706 Thanks to Felix Gröbert (Google) for discovering and researching this
711 *) By sending carefully crafted DTLS packets an attacker could cause openssl
712 to leak memory. This can be exploited through a Denial of Service attack.
713 Thanks to Adam Langley for discovering and researching this issue.
717 *) An attacker can force openssl to consume large amounts of memory whilst
718 processing DTLS handshake messages. This can be exploited through a
719 Denial of Service attack.
720 Thanks to Adam Langley for discovering and researching this issue.
724 *) An attacker can force an error condition which causes openssl to crash
725 whilst processing DTLS packets due to memory being freed twice. This
726 can be exploited through a Denial of Service attack.
727 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
732 *) If a multithreaded client connects to a malicious server using a resumed
733 session and the server sends an ec point format extension it could write
734 up to 255 bytes to freed memory.
736 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
741 *) A malicious server can crash an OpenSSL client with a null pointer
742 dereference (read) by specifying an SRP ciphersuite even though it was not
743 properly negotiated with the client. This can be exploited through a
744 Denial of Service attack.
746 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
747 discovering and researching this issue.
751 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
752 X509_name_oneline, X509_name_print_ex et al. to leak some information
753 from the stack. Applications may be affected if they echo pretty printing
754 output to the attacker.
756 Thanks to Ivan Fratric (Google) for discovering this issue.
758 [Emilia Käsper, and Steve Henson]
760 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
761 for corner cases. (Certain input points at infinity could lead to
762 bogus results, with non-infinity inputs mapped to infinity too.)
765 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
767 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
768 handshake can force the use of weak keying material in OpenSSL
769 SSL/TLS clients and servers.
771 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
772 researching this issue. (CVE-2014-0224)
773 [KIKUCHI Masashi, Steve Henson]
775 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
776 OpenSSL DTLS client the code can be made to recurse eventually crashing
779 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
781 [Imre Rad, Steve Henson]
783 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
784 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
785 client or server. This is potentially exploitable to run arbitrary
786 code on a vulnerable client or server.
788 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
789 [Jüri Aedla, Steve Henson]
791 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
792 are subject to a denial of service attack.
794 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
795 this issue. (CVE-2014-3470)
796 [Felix Gröbert, Ivan Fratric, Steve Henson]
798 *) Harmonize version and its documentation. -f flag is used to display
800 [mancha <mancha1@zoho.com>]
802 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
804 [mancha <mancha1@zoho.com>]
806 *) Fix some double frees. These are not thought to be exploitable.
807 [mancha <mancha1@zoho.com>]
809 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
811 *) A missing bounds check in the handling of the TLS heartbeat extension
812 can be used to reveal up to 64k of memory to a connected client or
815 Thanks for Neel Mehta of Google Security for discovering this bug and to
816 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
817 preparing the fix (CVE-2014-0160)
818 [Adam Langley, Bodo Moeller]
820 *) Fix for the attack described in the paper "Recovering OpenSSL
821 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
822 by Yuval Yarom and Naomi Benger. Details can be obtained from:
823 http://eprint.iacr.org/2014/140
825 Thanks to Yuval Yarom and Naomi Benger for discovering this
826 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
827 [Yuval Yarom and Naomi Benger]
829 *) TLS pad extension: draft-agl-tls-padding-03
831 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
832 TLS client Hello record length value would otherwise be > 255 and
833 less that 512 pad with a dummy extension containing zeroes so it
834 is at least 512 bytes long.
836 [Adam Langley, Steve Henson]
838 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
840 *) Fix for TLS record tampering bug. A carefully crafted invalid
841 handshake could crash OpenSSL with a NULL pointer exception.
842 Thanks to Anton Johansson for reporting this issues.
845 *) Keep original DTLS digest and encryption contexts in retransmission
846 structures so we can use the previous session parameters if they need
847 to be resent. (CVE-2013-6450)
850 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
851 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
852 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
853 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
854 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
855 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
856 [Rob Stradling, Adam Langley]
858 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
860 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
861 supporting platforms or when small records were transferred.
862 [Andy Polyakov, Steve Henson]
864 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
866 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
868 This addresses the flaw in CBC record processing discovered by
869 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
870 at: http://www.isg.rhul.ac.uk/tls/
872 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
873 Security Group at Royal Holloway, University of London
874 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
875 Emilia Käsper for the initial patch.
877 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
879 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
880 ciphersuites which can be exploited in a denial of service attack.
881 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
882 and detecting this bug and to Wolfgang Ettlinger
883 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
887 *) Return an error when checking OCSP signatures when key is NULL.
888 This fixes a DoS attack. (CVE-2013-0166)
891 *) Make openssl verify return errors.
892 [Chris Palmer <palmer@google.com> and Ben Laurie]
894 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
895 the right response is stapled. Also change SSL_get_certificate()
896 so it returns the certificate actually sent.
897 See http://rt.openssl.org/Ticket/Display.html?id=2836.
898 [Rob Stradling <rob.stradling@comodo.com>]
900 *) Fix possible deadlock when decoding public keys.
903 *) Don't use TLS 1.0 record version number in initial client hello
907 Changes between 1.0.1b and 1.0.1c [10 May 2012]
909 *) Sanity check record length before skipping explicit IV in TLS
910 1.2, 1.1 and DTLS to fix DoS attack.
912 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
913 fuzzing as a service testing platform.
917 *) Initialise tkeylen properly when encrypting CMS messages.
918 Thanks to Solar Designer of Openwall for reporting this issue.
921 *) In FIPS mode don't try to use composite ciphers as they are not
925 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
927 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
928 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
929 mean any application compiled against OpenSSL 1.0.0 headers setting
930 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
931 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
932 0x10000000L Any application which was previously compiled against
933 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
934 will need to be recompiled as a result. Letting be results in
935 inability to disable specifically TLS 1.1 and in client context,
936 in unlike event, limit maximum offered version to TLS 1.0 [see below].
939 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
940 disable just protocol X, but all protocols above X *if* there are
941 protocols *below* X still enabled. In more practical terms it means
942 that if application wants to disable TLS1.0 in favor of TLS1.1 and
943 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
944 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
948 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
950 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
951 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
952 in CRYPTO_realloc_clean.
954 Thanks to Tavis Ormandy, Google Security Team, for discovering this
955 issue and to Adam Langley <agl@chromium.org> for fixing it.
957 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
959 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
962 *) Workarounds for some broken servers that "hang" if a client hello
963 record length exceeds 255 bytes.
965 1. Do not use record version number > TLS 1.0 in initial client
966 hello: some (but not all) hanging servers will now work.
967 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
968 the number of ciphers sent in the client hello. This should be
969 set to an even number, such as 50, for example by passing:
970 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
971 Most broken servers should now work.
972 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
973 TLS 1.2 client support entirely.
976 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
979 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
981 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
982 STRING form instead of a DigestInfo.
985 *) The format used for MDC2 RSA signatures is inconsistent between EVP
986 and the RSA_sign/RSA_verify functions. This was made more apparent when
987 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
988 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
989 the correct format in RSA_verify so both forms transparently work.
992 *) Some servers which support TLS 1.0 can choke if we initially indicate
993 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
994 encrypted premaster secret. As a workaround use the maximum permitted
995 client version in client hello, this should keep such servers happy
996 and still work with previous versions of OpenSSL.
999 *) Add support for TLS/DTLS heartbeats.
1000 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1002 *) Add support for SCTP.
1003 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1005 *) Improved PRNG seeding for VOS.
1006 [Paul Green <Paul.Green@stratus.com>]
1008 *) Extensive assembler packs updates, most notably:
1010 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1011 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1012 - x86_64: bit-sliced AES implementation;
1013 - ARM: NEON support, contemporary platforms optimizations;
1014 - s390x: z196 support;
1015 - *: GHASH and GF(2^m) multiplication implementations;
1019 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
1020 (removal of unnecessary code)
1021 [Peter Sylvester <peter.sylvester@edelweb.fr>]
1023 *) Add TLS key material exporter from RFC 5705.
1026 *) Add DTLS-SRTP negotiation from RFC 5764.
1029 *) Add Next Protocol Negotiation,
1030 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
1031 disabled with a no-npn flag to config or Configure. Code donated
1033 [Adam Langley <agl@google.com> and Ben Laurie]
1035 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
1036 NIST-P256, NIST-P521, with constant-time single point multiplication on
1037 typical inputs. Compiler support for the nonstandard type __uint128_t is
1038 required to use this (present in gcc 4.4 and later, for 64-bit builds).
1039 Code made available under Apache License version 2.0.
1041 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
1042 line to include this in your build of OpenSSL, and run "make depend" (or
1043 "make update"). This enables the following EC_METHODs:
1045 EC_GFp_nistp224_method()
1046 EC_GFp_nistp256_method()
1047 EC_GFp_nistp521_method()
1049 EC_GROUP_new_by_curve_name() will automatically use these (while
1050 EC_GROUP_new_curve_GFp() currently prefers the more flexible
1052 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1054 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
1055 all platforms. Move ssize_t definition from e_os.h to the public
1056 header file e_os2.h as it now appears in public header file cms.h
1059 *) New -sigopt option to the ca, req and x509 utilities. Additional
1060 signature parameters can be passed using this option and in
1064 *) Add RSA PSS signing function. This will generate and set the
1065 appropriate AlgorithmIdentifiers for PSS based on those in the
1066 corresponding EVP_MD_CTX structure. No application support yet.
1069 *) Support for companion algorithm specific ASN1 signing routines.
1070 New function ASN1_item_sign_ctx() signs a pre-initialised
1071 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
1072 the appropriate parameters.
1075 *) Add new algorithm specific ASN1 verification initialisation function
1076 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
1077 handling will be the same no matter what EVP_PKEY_METHOD is used.
1078 Add a PSS handler to support verification of PSS signatures: checked
1079 against a number of sample certificates.
1082 *) Add signature printing for PSS. Add PSS OIDs.
1083 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
1085 *) Add algorithm specific signature printing. An individual ASN1 method
1086 can now print out signatures instead of the standard hex dump.
1088 More complex signatures (e.g. PSS) can print out more meaningful
1089 information. Include DSA version that prints out the signature
1093 *) Password based recipient info support for CMS library: implementing
1097 *) Split password based encryption into PBES2 and PBKDF2 functions. This
1098 neatly separates the code into cipher and PBE sections and is required
1099 for some algorithms that split PBES2 into separate pieces (such as
1100 password based CMS).
1103 *) Session-handling fixes:
1104 - Fix handling of connections that are resuming with a session ID,
1105 but also support Session Tickets.
1106 - Fix a bug that suppressed issuing of a new ticket if the client
1107 presented a ticket with an expired session.
1108 - Try to set the ticket lifetime hint to something reasonable.
1109 - Make tickets shorter by excluding irrelevant information.
1110 - On the client side, don't ignore renewed tickets.
1111 [Adam Langley, Bodo Moeller (Google)]
1113 *) Fix PSK session representation.
1116 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
1118 This work was sponsored by Intel.
1121 *) Add GCM support to TLS library. Some custom code is needed to split
1122 the IV between the fixed (from PRF) and explicit (from TLS record)
1123 portions. This adds all GCM ciphersuites supported by RFC5288 and
1124 RFC5289. Generalise some AES* cipherstrings to include GCM and
1125 add a special AESGCM string for GCM only.
1128 *) Expand range of ctrls for AES GCM. Permit setting invocation
1129 field on decrypt and retrieval of invocation field only on encrypt.
1132 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
1133 As required by RFC5289 these ciphersuites cannot be used if for
1134 versions of TLS earlier than 1.2.
1137 *) For FIPS capable OpenSSL interpret a NULL default public key method
1138 as unset and return the appropriate default but do *not* set the default.
1139 This means we can return the appropriate method in applications that
1140 switch between FIPS and non-FIPS modes.
1143 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
1144 ENGINE is used then we cannot handle that in the FIPS module so we
1145 keep original code iff non-FIPS operations are allowed.
1148 *) Add -attime option to openssl utilities.
1149 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
1151 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
1154 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
1155 FIPS EC methods unconditionally for now.
1158 *) New build option no-ec2m to disable characteristic 2 code.
1161 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
1162 all cases can be covered as some introduce binary incompatibilities.
1165 *) Redirect RSA operations to FIPS module including keygen,
1166 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
1169 *) Add similar low level API blocking to ciphers.
1172 *) Low level digest APIs are not approved in FIPS mode: any attempt
1173 to use these will cause a fatal error. Applications that *really* want
1174 to use them can use the private_* version instead.
1177 *) Redirect cipher operations to FIPS module for FIPS builds.
1180 *) Redirect digest operations to FIPS module for FIPS builds.
1183 *) Update build system to add "fips" flag which will link in fipscanister.o
1184 for static and shared library builds embedding a signature if needed.
1187 *) Output TLS supported curves in preference order instead of numerical
1188 order. This is currently hardcoded for the highest order curves first.
1189 This should be configurable so applications can judge speed vs strength.
1192 *) Add TLS v1.2 server support for client authentication.
1195 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
1199 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
1200 FIPS modules versions.
1203 *) Add TLS v1.2 client side support for client authentication. Keep cache
1204 of handshake records longer as we don't know the hash algorithm to use
1205 until after the certificate request message is received.
1208 *) Initial TLS v1.2 client support. Add a default signature algorithms
1209 extension including all the algorithms we support. Parse new signature
1210 format in client key exchange. Relax some ECC signing restrictions for
1211 TLS v1.2 as indicated in RFC5246.
1214 *) Add server support for TLS v1.2 signature algorithms extension. Switch
1215 to new signature format when needed using client digest preference.
1216 All server ciphersuites should now work correctly in TLS v1.2. No client
1217 support yet and no support for client certificates.
1220 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
1221 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
1222 ciphersuites. At present only RSA key exchange ciphersuites work with
1223 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
1224 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
1225 and version checking.
1228 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
1229 with this defined it will not be affected by any changes to ssl internal
1230 structures. Add several utility functions to allow openssl application
1231 to work with OPENSSL_NO_SSL_INTERN defined.
1235 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
1237 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
1240 *) Permit abbreviated handshakes when renegotiating using the function
1241 SSL_renegotiate_abbreviated().
1242 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1244 *) Add call to ENGINE_register_all_complete() to
1245 ENGINE_load_builtin_engines(), so some implementations get used
1246 automatically instead of needing explicit application support.
1249 *) Add support for TLS key exporter as described in RFC5705.
1250 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
1252 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
1253 a few changes are required:
1255 Add SSL_OP_NO_TLSv1_1 flag.
1256 Add TLSv1_1 methods.
1257 Update version checking logic to handle version 1.1.
1258 Add explicit IV handling (ported from DTLS code).
1259 Add command line options to s_client/s_server.
1262 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
1264 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1266 This addresses the flaw in CBC record processing discovered by
1267 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1268 at: http://www.isg.rhul.ac.uk/tls/
1270 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1271 Security Group at Royal Holloway, University of London
1272 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1273 Emilia Käsper for the initial patch.
1275 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1277 *) Return an error when checking OCSP signatures when key is NULL.
1278 This fixes a DoS attack. (CVE-2013-0166)
1281 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1282 the right response is stapled. Also change SSL_get_certificate()
1283 so it returns the certificate actually sent.
1284 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1285 (This is a backport)
1286 [Rob Stradling <rob.stradling@comodo.com>]
1288 *) Fix possible deadlock when decoding public keys.
1291 Changes between 1.0.0i and 1.0.0j [10 May 2012]
1293 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
1296 *) Sanity check record length before skipping explicit IV in DTLS
1299 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1300 fuzzing as a service testing platform.
1304 *) Initialise tkeylen properly when encrypting CMS messages.
1305 Thanks to Solar Designer of Openwall for reporting this issue.
1308 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
1310 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1311 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1312 in CRYPTO_realloc_clean.
1314 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1315 issue and to Adam Langley <agl@chromium.org> for fixing it.
1317 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1319 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1321 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1322 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1323 content decryption and always return the same error. Note: this attack
1324 needs on average 2^20 messages so it only affects automated senders. The
1325 old behaviour can be reenabled in the CMS code by setting the
1326 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1327 an MMA defence is not necessary.
1328 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1329 this issue. (CVE-2012-0884)
1332 *) Fix CVE-2011-4619: make sure we really are receiving a
1333 client hello before rejecting multiple SGC restarts. Thanks to
1334 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1337 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1339 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1340 Thanks to Antonio Martin, Enterprise Secure Access Research and
1341 Development, Cisco Systems, Inc. for discovering this bug and
1342 preparing a fix. (CVE-2012-0050)
1345 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1347 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1348 of the Vaudenay padding oracle attack on CBC mode encryption
1349 which enables an efficient plaintext recovery attack against
1350 the OpenSSL implementation of DTLS. Their attack exploits timing
1351 differences arising during decryption processing. A research
1352 paper describing this attack can be found at:
1353 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1354 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1355 Security Group at Royal Holloway, University of London
1356 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1357 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1358 for preparing the fix. (CVE-2011-4108)
1359 [Robin Seggelmann, Michael Tuexen]
1361 *) Clear bytes used for block padding of SSL 3.0 records.
1363 [Adam Langley (Google)]
1365 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1366 Kadianakis <desnacked@gmail.com> for discovering this issue and
1367 Adam Langley for preparing the fix. (CVE-2011-4619)
1368 [Adam Langley (Google)]
1370 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1371 [Andrey Kulikov <amdeich@gmail.com>]
1373 *) Prevent malformed RFC3779 data triggering an assertion failure.
1374 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1375 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1376 [Rob Austein <sra@hactrn.net>]
1378 *) Improved PRNG seeding for VOS.
1379 [Paul Green <Paul.Green@stratus.com>]
1381 *) Fix ssl_ciph.c set-up race.
1382 [Adam Langley (Google)]
1384 *) Fix spurious failures in ecdsatest.c.
1385 [Emilia Käsper (Google)]
1387 *) Fix the BIO_f_buffer() implementation (which was mixing different
1388 interpretations of the '..._len' fields).
1389 [Adam Langley (Google)]
1391 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1392 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1393 threads won't reuse the same blinding coefficients.
1395 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1396 lock to call BN_BLINDING_invert_ex, and avoids one use of
1397 BN_BLINDING_update for each BN_BLINDING structure (previously,
1398 the last update always remained unused).
1399 [Emilia Käsper (Google)]
1401 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1402 [Bob Buckholz (Google)]
1404 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1406 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1407 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1408 [Kaspar Brand <ossl@velox.ch>]
1410 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1411 for multi-threaded use of ECDH. (CVE-2011-3210)
1412 [Adam Langley (Google)]
1414 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1417 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1418 signature public key algorithm by using OID xref utilities instead.
1419 Before this you could only use some ECC ciphersuites with SHA1 only.
1422 *) Add protection against ECDSA timing attacks as mentioned in the paper
1423 by Billy Bob Brumley and Nicola Tuveri, see:
1425 http://eprint.iacr.org/2011/232.pdf
1427 [Billy Bob Brumley and Nicola Tuveri]
1429 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1431 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1432 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1434 *) Fix bug in string printing code: if *any* escaping is enabled we must
1435 escape the escape character (backslash) or the resulting string is
1439 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1441 *) Disable code workaround for ancient and obsolete Netscape browsers
1442 and servers: an attacker can use it in a ciphersuite downgrade attack.
1443 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1446 *) Fixed J-PAKE implementation error, originally discovered by
1447 Sebastien Martini, further info and confirmation from Stefan
1448 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1451 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1453 *) Fix extension code to avoid race conditions which can result in a buffer
1454 overrun vulnerability: resumed sessions must not be modified as they can
1455 be shared by multiple threads. CVE-2010-3864
1458 *) Fix WIN32 build system to correctly link an ENGINE directory into
1462 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1464 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1466 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1468 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1470 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1471 context. The operation can be customised via the ctrl mechanism in
1472 case ENGINEs want to include additional functionality.
1475 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1478 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1479 output hashes compatible with older versions of OpenSSL.
1480 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1482 *) Fix compression algorithm handling: if resuming a session use the
1483 compression algorithm of the resumed session instead of determining
1484 it from client hello again. Don't allow server to change algorithm.
1487 *) Add load_crls() function to apps tidying load_certs() too. Add option
1488 to verify utility to allow additional CRLs to be included.
1491 *) Update OCSP request code to permit adding custom headers to the request:
1492 some responders need this.
1495 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1497 [Julia Lawall <julia@diku.dk>]
1499 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1500 needlessly dereferenced structures, used obsolete functions and
1501 didn't handle all updated verify codes correctly.
1504 *) Disable MD2 in the default configuration.
1507 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1508 indicate the initial BIO being pushed or popped. This makes it possible
1509 to determine whether the BIO is the one explicitly called or as a result
1510 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1511 it handles reference counts correctly and doesn't zero out the I/O bio
1512 when it is not being explicitly popped. WARNING: applications which
1513 included workarounds for the old buggy behaviour will need to be modified
1514 or they could free up already freed BIOs.
1517 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1518 renaming to all platforms (within the 0.9.8 branch, this was
1519 done conditionally on Netware platforms to avoid a name clash).
1520 [Guenter <lists@gknw.net>]
1522 *) Add ECDHE and PSK support to DTLS.
1523 [Michael Tuexen <tuexen@fh-muenster.de>]
1525 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1529 *) Add "missing" function EVP_MD_flags() (without this the only way to
1530 retrieve a digest flags is by accessing the structure directly. Update
1531 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1532 or cipher is registered as in the "from" argument. Print out all
1533 registered digests in the dgst usage message instead of manually
1534 attempting to work them out.
1537 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1538 this allows the use of compression and extensions. Change default cipher
1539 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1540 by default unless an application cipher string requests it.
1543 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1544 key ids to find matching certificates and keys but some PKCS#12 files
1545 don't follow the (somewhat unwritten) rules and this strategy fails.
1546 Now just gather all certificates together and the first private key
1547 then look for the first certificate that matches the key.
1550 *) Support use of registered digest and cipher names for dgst and cipher
1551 commands instead of having to add each one as a special case. So now
1558 openssl dgst -sha256 foo
1560 and this works for ENGINE based algorithms too.
1564 *) Update Gost ENGINE to support parameter files.
1565 [Victor B. Wagner <vitus@cryptocom.ru>]
1567 *) Support GeneralizedTime in ca utility.
1568 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1570 *) Enhance the hash format used for certificate directory links. The new
1571 form uses the canonical encoding (meaning equivalent names will work
1572 even if they aren't identical) and uses SHA1 instead of MD5. This form
1573 is incompatible with the older format and as a result c_rehash should
1574 be used to rebuild symbolic links.
1577 *) Make PKCS#8 the default write format for private keys, replacing the
1578 traditional format. This form is standardised, more secure and doesn't
1579 include an implicit MD5 dependency.
1582 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1583 committed to OpenSSL should pass this lot as a minimum.
1586 *) Add session ticket override functionality for use by EAP-FAST.
1587 [Jouni Malinen <j@w1.fi>]
1589 *) Modify HMAC functions to return a value. Since these can be implemented
1590 in an ENGINE errors can occur.
1593 *) Type-checked OBJ_bsearch_ex.
1596 *) Type-checked OBJ_bsearch. Also some constification necessitated
1597 by type-checking. Still to come: TXT_DB, bsearch(?),
1598 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1602 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1603 seconds to a tm structure directly, instead of going through OS
1604 specific date routines. This avoids any issues with OS routines such
1605 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1606 and X509_time_adj_ex() to cover the extended range. The existing
1607 X509_time_adj() is still usable and will no longer have any date issues.
1610 *) Delta CRL support. New use deltas option which will attempt to locate
1611 and search any appropriate delta CRLs available.
1613 This work was sponsored by Google.
1616 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1617 code and add additional score elements. Validate alternate CRL paths
1618 as part of the CRL checking and indicate a new error "CRL path validation
1619 error" in this case. Applications wanting additional details can use
1620 the verify callback and check the new "parent" field. If this is not
1621 NULL CRL path validation is taking place. Existing applications wont
1622 see this because it requires extended CRL support which is off by
1625 This work was sponsored by Google.
1628 *) Support for freshest CRL extension.
1630 This work was sponsored by Google.
1633 *) Initial indirect CRL support. Currently only supported in the CRLs
1634 passed directly and not via lookup. Process certificate issuer
1635 CRL entry extension and lookup CRL entries by bother issuer name
1636 and serial number. Check and process CRL issuer entry in IDP extension.
1638 This work was sponsored by Google.
1641 *) Add support for distinct certificate and CRL paths. The CRL issuer
1642 certificate is validated separately in this case. Only enabled if
1643 an extended CRL support flag is set: this flag will enable additional
1644 CRL functionality in future.
1646 This work was sponsored by Google.
1649 *) Add support for policy mappings extension.
1651 This work was sponsored by Google.
1654 *) Fixes to pathlength constraint, self issued certificate handling,
1655 policy processing to align with RFC3280 and PKITS tests.
1657 This work was sponsored by Google.
1660 *) Support for name constraints certificate extension. DN, email, DNS
1661 and URI types are currently supported.
1663 This work was sponsored by Google.
1666 *) To cater for systems that provide a pointer-based thread ID rather
1667 than numeric, deprecate the current numeric thread ID mechanism and
1668 replace it with a structure and associated callback type. This
1669 mechanism allows a numeric "hash" to be extracted from a thread ID in
1670 either case, and on platforms where pointers are larger than 'long',
1671 mixing is done to help ensure the numeric 'hash' is usable even if it
1672 can't be guaranteed unique. The default mechanism is to use "&errno"
1673 as a pointer-based thread ID to distinguish between threads.
1675 Applications that want to provide their own thread IDs should now use
1676 CRYPTO_THREADID_set_callback() to register a callback that will call
1677 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1679 Note that ERR_remove_state() is now deprecated, because it is tied
1680 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1681 to free the current thread's error state should be replaced by
1682 ERR_remove_thread_state(NULL).
1684 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1685 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1686 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1687 application was previously providing a numeric thread callback that
1688 was inappropriate for distinguishing threads, then uniqueness might
1689 have been obtained with &errno that happened immediately in the
1690 intermediate development versions of OpenSSL; this is no longer the
1691 case, the numeric thread callback will now override the automatic use
1693 [Geoff Thorpe, with help from Bodo Moeller]
1695 *) Initial support for different CRL issuing certificates. This covers a
1696 simple case where the self issued certificates in the chain exist and
1697 the real CRL issuer is higher in the existing chain.
1699 This work was sponsored by Google.
1702 *) Removed effectively defunct crypto/store from the build.
1705 *) Revamp of STACK to provide stronger type-checking. Still to come:
1706 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1707 ASN1_STRING, CONF_VALUE.
1710 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1711 RAM on SSL connections. This option can save about 34k per idle SSL.
1714 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1715 STACK, TXT_DB, bsearch, qsort.
1718 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1719 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1720 support for data, signedData, compressedData, digestedData and
1721 encryptedData, envelopedData types included. Scripts to check against
1722 RFC4134 examples draft and interop and consistency checks of many
1723 content types and variants.
1726 *) Add options to enc utility to support use of zlib compression BIO.
1729 *) Extend mk1mf to support importing of options and assembly language
1730 files from Configure script, currently only included in VC-WIN32.
1731 The assembly language rules can now optionally generate the source
1732 files from the associated perl scripts.
1735 *) Implement remaining functionality needed to support GOST ciphersuites.
1736 Interop testing has been performed using CryptoPro implementations.
1737 [Victor B. Wagner <vitus@cryptocom.ru>]
1739 *) s390x assembler pack.
1742 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1746 *) Implement Opaque PRF Input TLS extension as specified in
1747 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1748 official specification yet and no extension type assignment by
1749 IANA exists, this extension (for now) will have to be explicitly
1750 enabled when building OpenSSL by providing the extension number
1751 to use. For example, specify an option
1753 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1755 to the "config" or "Configure" script to enable the extension,
1756 assuming extension number 0x9527 (which is a completely arbitrary
1757 and unofficial assignment based on the MD5 hash of the Internet
1758 Draft). Note that by doing so, you potentially lose
1759 interoperability with other TLS implementations since these might
1760 be using the same extension number for other purposes.
1762 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1763 opaque PRF input value to use in the handshake. This will create
1764 an interal copy of the length-'len' string at 'src', and will
1765 return non-zero for success.
1767 To get more control and flexibility, provide a callback function
1770 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1771 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1775 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1778 Callback function 'cb' will be called in handshakes, and is
1779 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1780 Argument 'arg' is for application purposes (the value as given to
1781 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1782 be provided to the callback function). The callback function
1783 has to return non-zero to report success: usually 1 to use opaque
1784 PRF input just if possible, or 2 to enforce use of the opaque PRF
1785 input. In the latter case, the library will abort the handshake
1786 if opaque PRF input is not successfully negotiated.
1788 Arguments 'peerinput' and 'len' given to the callback function
1789 will always be NULL and 0 in the case of a client. A server will
1790 see the client's opaque PRF input through these variables if
1791 available (NULL and 0 otherwise). Note that if the server
1792 provides an opaque PRF input, the length must be the same as the
1793 length of the client's opaque PRF input.
1795 Note that the callback function will only be called when creating
1796 a new session (session resumption can resume whatever was
1797 previously negotiated), and will not be called in SSL 2.0
1798 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1799 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1800 for applications that need to enforce opaque PRF input.
1804 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1807 [Victor B. Wagner <vitus@cryptocom.ru>]
1809 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1810 RFC4507bis. The encrypted ticket format is an encrypted encoded
1811 SSL_SESSION structure, that way new session features are automatically
1814 If a client application caches session in an SSL_SESSION structure
1815 support is transparent because tickets are now stored in the encoded
1818 The SSL_CTX structure automatically generates keys for ticket
1819 protection in servers so again support should be possible
1820 with no application modification.
1822 If a client or server wishes to disable RFC4507 support then the option
1823 SSL_OP_NO_TICKET can be set.
1825 Add a TLS extension debugging callback to allow the contents of any client
1826 or server extensions to be examined.
1828 This work was sponsored by Google.
1831 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1832 OpenSSL should now compile cleanly on gcc 4.2
1833 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1835 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1836 support including streaming MAC support: this is required for GOST
1837 ciphersuite support.
1838 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1840 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1841 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1842 to output in BER and PEM format.
1845 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1846 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1847 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1848 ENGINE support for HMAC keys which are unextractable. New -mac and
1849 -macopt options to dgst utility.
1852 *) New option -sigopt to dgst utility. Update dgst to use
1853 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1854 alternative signing paramaters such as X9.31 or PSS in the dgst
1858 *) Change ssl_cipher_apply_rule(), the internal function that does
1859 the work each time a ciphersuite string requests enabling
1860 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1861 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1862 the order of disabled ciphersuites such that those ciphersuites
1863 that most recently went from enabled to disabled not only stay
1864 in order with respect to each other, but also have higher priority
1865 than other disabled ciphersuites the next time ciphersuites are
1868 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1869 the same ciphersuites as with "HIGH" alone, but in a specific
1870 order where the PSK ciphersuites come first (since they are the
1871 most recently disabled ciphersuites when "HIGH" is parsed).
1873 Also, change ssl_create_cipher_list() (using this new
1874 funcionality) such that between otherwise identical
1875 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1879 *) Change ssl_create_cipher_list() so that it automatically
1880 arranges the ciphersuites in reasonable order before starting
1881 to process the rule string. Thus, the definition for "DEFAULT"
1882 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1883 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1884 This makes it much easier to arrive at a reasonable default order
1885 in applications for which anonymous ciphers are OK (meaning
1886 that you can't actually use DEFAULT).
1887 [Bodo Moeller; suggested by Victor Duchovni]
1889 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1890 processing) into multiple integers instead of setting
1891 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1892 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1893 (These masks as well as the individual bit definitions are hidden
1894 away into the non-exported interface ssl/ssl_locl.h, so this
1895 change to the definition of the SSL_CIPHER structure shouldn't
1896 affect applications.) This give us more bits for each of these
1897 categories, so there is no longer a need to coagulate AES128 and
1898 AES256 into a single algorithm bit, and to coagulate Camellia128
1899 and Camellia256 into a single algorithm bit, which has led to all
1902 Thus, among other things, the kludge introduced in 0.9.7m and
1903 0.9.8e for masking out AES256 independently of AES128 or masking
1904 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1906 With the change, we also introduce new ciphersuite aliases that
1907 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1911 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1912 Use the leftmost N bytes of the signature input if the input is
1913 larger than the prime q (with N being the size in bytes of q).
1916 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1917 it yet and it is largely untested.
1920 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1923 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1924 some compilers (gcc 4.2 and later) reject their use. Safestack is
1925 reimplemented. Update ASN1 to avoid use of legacy functions.
1928 *) Win32/64 targets are linked with Winsock2.
1931 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1932 to external functions. This can be used to increase CRL handling
1933 efficiency especially when CRLs are very large by (for example) storing
1934 the CRL revoked certificates in a database.
1937 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1938 new CRLs added to a directory can be used. New command line option
1939 -verify_return_error to s_client and s_server. This causes real errors
1940 to be returned by the verify callback instead of carrying on no matter
1941 what. This reflects the way a "real world" verify callback would behave.
1944 *) GOST engine, supporting several GOST algorithms and public key formats.
1945 Kindly donated by Cryptocom.
1948 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1949 partitioned by DP are handled but no indirect CRL or reason partitioning
1950 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1951 selected via a scoring technique which handles IDP and AKID in CRLs.
1954 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1955 will ultimately be used for all verify operations: this will remove the
1956 X509_STORE dependency on certificate verification and allow alternative
1957 lookup methods. X509_STORE based implementations of these two callbacks.
1960 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1961 Modify get_crl() to find a valid (unexpired) CRL if possible.
1964 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1965 this would be called X509_CRL_cmp() but that name is already used by
1966 a function that just compares CRL issuer names. Cache several CRL
1967 extensions in X509_CRL structure and cache CRLDP in X509.
1970 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1971 this maps equivalent X509_NAME structures into a consistent structure.
1972 Name comparison can then be performed rapidly using memcmp().
1975 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1979 *) Allow digests to supply their own micalg string for S/MIME type using
1980 the ctrl EVP_MD_CTRL_MICALG.
1983 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1984 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1985 ctrl. It can then customise the structure before and/or after signing
1989 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1990 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1991 to free up any added signature OIDs.
1994 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1995 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1996 digest and cipher tables. New options added to openssl utility:
1997 list-message-digest-algorithms and list-cipher-algorithms.
2000 *) Change the array representation of binary polynomials: the list
2001 of degrees of non-zero coefficients is now terminated with -1.
2002 Previously it was terminated with 0, which was also part of the
2003 value; thus, the array representation was not applicable to
2004 polynomials where t^0 has coefficient zero. This change makes
2005 the array representation useful in a more general context.
2008 *) Various modifications and fixes to SSL/TLS cipher string
2009 handling. For ECC, the code now distinguishes between fixed ECDH
2010 with RSA certificates on the one hand and with ECDSA certificates
2011 on the other hand, since these are separate ciphersuites. The
2012 unused code for Fortezza ciphersuites has been removed.
2014 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2015 (not "ECDHE"). For consistency with the code for DH
2016 certificates, use of ECDH certificates is now considered ECDH
2017 authentication, not RSA or ECDSA authentication (the latter is
2018 merely the CA's signing algorithm and not actively used in the
2021 The temporary ciphersuite alias "ECCdraft" is no longer
2022 available, and ECC ciphersuites are no longer excluded from "ALL"
2023 and "DEFAULT". The following aliases now exist for RFC 4492
2024 ciphersuites, most of these by analogy with the DH case:
2026 kECDHr - ECDH cert, signed with RSA
2027 kECDHe - ECDH cert, signed with ECDSA
2028 kECDH - ECDH cert (signed with either RSA or ECDSA)
2029 kEECDH - ephemeral ECDH
2030 ECDH - ECDH cert or ephemeral ECDH
2036 AECDH - anonymous ECDH
2037 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2041 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2042 Use correct micalg parameters depending on digest(s) in signed message.
2045 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2046 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2049 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2050 an engine to register a method. Add ENGINE lookups for methods and
2051 functional reference processing.
2054 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2055 EVP_{Sign,Verify}* which allow an application to customise the signature
2059 *) New -resign option to smime utility. This adds one or more signers
2060 to an existing PKCS#7 signedData structure. Also -md option to use an
2061 alternative message digest algorithm for signing.
2064 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2065 create PKCS7 structures containing multiple signers. Update smime
2066 application to support multiple signers.
2069 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2073 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2074 Reorganize PBE internals to lookup from a static table using NIDs,
2075 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2076 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
2077 PRF which will be automatically used with PBES2.
2080 *) Replace the algorithm specific calls to generate keys in "req" with the
2084 *) Update PKCS#7 enveloped data routines to use new API. This is now
2085 supported by any public key method supporting the encrypt operation. A
2086 ctrl is added to allow the public key algorithm to examine or modify
2087 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
2091 *) Add a ctrl to asn1 method to allow a public key algorithm to express
2092 a default digest type to use. In most cases this will be SHA1 but some
2093 algorithms (such as GOST) need to specify an alternative digest. The
2094 return value indicates how strong the preference is 1 means optional and
2095 2 is mandatory (that is it is the only supported type). Modify
2096 ASN1_item_sign() to accept a NULL digest argument to indicate it should
2097 use the default md. Update openssl utilities to use the default digest
2098 type for signing if it is not explicitly indicated.
2101 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
2102 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
2103 signing method from the key type. This effectively removes the link
2104 between digests and public key types.
2107 *) Add an OID cross reference table and utility functions. Its purpose is to
2108 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
2109 rsaEncryption. This will allow some of the algorithm specific hackery
2110 needed to use the correct OID to be removed.
2113 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
2114 structures for PKCS7_sign(). They are now set up by the relevant public
2118 *) Add provisional EC pkey method with support for ECDSA and ECDH.
2121 *) Add support for key derivation (agreement) in the API, DH method and
2125 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
2126 public and private key formats. As a side effect these add additional
2127 command line functionality not previously available: DSA signatures can be
2128 generated and verified using pkeyutl and DH key support and generation in
2133 [Oliver Tappe <zooey@hirschkaefer.de>]
2135 *) New make target "install_html_docs" installs HTML renditions of the
2137 [Oliver Tappe <zooey@hirschkaefer.de>]
2139 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
2140 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
2141 support key and parameter generation and add initial key generation
2142 functionality for RSA.
2145 *) Add functions for main EVP_PKEY_method operations. The undocumented
2146 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
2147 EVP_PKEY_{encrypt,decrypt}_old.
2150 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
2151 key API, doesn't do much yet.
2154 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
2155 public key algorithms. New option to openssl utility:
2156 "list-public-key-algorithms" to print out info.
2159 *) Implement the Supported Elliptic Curves Extension for
2160 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2163 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
2164 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
2167 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
2168 utilities such as rsa, dsa, dsaparam etc except they process any key
2172 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
2173 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
2174 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
2178 *) Initial support for pluggable public key ASN1.
2179 De-spaghettify the public key ASN1 handling. Move public and private
2180 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
2181 algorithm specific handling to a single module within the relevant
2182 algorithm directory. Add functions to allow (near) opaque processing
2183 of public and private key structures.
2186 *) Implement the Supported Point Formats Extension for
2187 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2190 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
2191 for the psk identity [hint] and the psk callback functions to the
2192 SSL_SESSION, SSL and SSL_CTX structure.
2195 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
2199 SSL_CTX_use_psk_identity_hint
2200 SSL_get_psk_identity_hint
2201 SSL_get_psk_identity
2202 SSL_use_psk_identity_hint
2204 [Mika Kousa and Pasi Eronen of Nokia Corporation]
2206 *) Add RFC 3161 compliant time stamp request creation, response generation
2207 and response verification functionality.
2208 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
2210 *) Add initial support for TLS extensions, specifically for the server_name
2211 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2212 have new members for a host name. The SSL data structure has an
2213 additional member SSL_CTX *initial_ctx so that new sessions can be
2214 stored in that context to allow for session resumption, even after the
2215 SSL has been switched to a new SSL_CTX in reaction to a client's
2216 server_name extension.
2218 New functions (subject to change):
2220 SSL_get_servername()
2221 SSL_get_servername_type()
2224 New CTRL codes and macros (subject to change):
2226 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2227 - SSL_CTX_set_tlsext_servername_callback()
2228 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2229 - SSL_CTX_set_tlsext_servername_arg()
2230 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2232 openssl s_client has a new '-servername ...' option.
2234 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2235 '-key2 ...', '-servername_fatal' (subject to change). This allows
2236 testing the HostName extension for a specific single host name ('-cert'
2237 and '-key' remain fallbacks for handshakes without HostName
2238 negotiation). If the unrecognized_name alert has to be sent, this by
2239 default is a warning; it becomes fatal with the '-servername_fatal'
2242 [Peter Sylvester, Remy Allais, Christophe Renou]
2244 *) Whirlpool hash implementation is added.
2247 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
2248 bn(64,32). Because of instruction set limitations it doesn't have
2249 any negative impact on performance. This was done mostly in order
2250 to make it possible to share assembler modules, such as bn_mul_mont
2251 implementations, between 32- and 64-bit builds without hassle.
2254 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
2255 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
2259 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
2260 dedicated Montgomery multiplication procedure, is introduced.
2261 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
2262 "64-bit" performance on certain 32-bit targets.
2265 *) New option SSL_OP_NO_COMP to disable use of compression selectively
2266 in SSL structures. New SSL ctrl to set maximum send fragment size.
2267 Save memory by seeting the I/O buffer sizes dynamically instead of
2268 using the maximum available value.
2271 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
2272 in addition to the text details.
2275 *) Very, very preliminary EXPERIMENTAL support for printing of general
2276 ASN1 structures. This currently produces rather ugly output and doesn't
2277 handle several customised structures at all.
2280 *) Integrated support for PVK file format and some related formats such
2281 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
2282 these in the 'rsa' and 'dsa' utilities.
2285 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
2288 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
2289 place for the (very old) "NETSCAPE" format certificates which are now
2290 handled using new ASN1 code equivalents.
2293 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
2294 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
2295 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
2298 *) Modify CRL distribution points extension code to print out previously
2299 unsupported fields. Enhance extension setting code to allow setting of
2303 *) Add print and set support for Issuing Distribution Point CRL extension.
2306 *) Change 'Configure' script to enable Camellia by default.
2309 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
2311 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
2313 This addresses the flaw in CBC record processing discovered by
2314 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
2315 at: http://www.isg.rhul.ac.uk/tls/
2317 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2318 Security Group at Royal Holloway, University of London
2319 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
2320 Emilia Käsper for the initial patch.
2322 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
2324 *) Return an error when checking OCSP signatures when key is NULL.
2325 This fixes a DoS attack. (CVE-2013-0166)
2328 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
2329 the right response is stapled. Also change SSL_get_certificate()
2330 so it returns the certificate actually sent.
2331 See http://rt.openssl.org/Ticket/Display.html?id=2836.
2332 (This is a backport)
2333 [Rob Stradling <rob.stradling@comodo.com>]
2335 *) Fix possible deadlock when decoding public keys.
2338 Changes between 0.9.8w and 0.9.8x [10 May 2012]
2340 *) Sanity check record length before skipping explicit IV in DTLS
2343 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
2344 fuzzing as a service testing platform.
2348 *) Initialise tkeylen properly when encrypting CMS messages.
2349 Thanks to Solar Designer of Openwall for reporting this issue.
2352 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
2354 *) The fix for CVE-2012-2110 did not take into account that the
2355 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
2356 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
2357 rejecting negative len parameter. (CVE-2012-2131)
2358 [Tomas Hoger <thoger@redhat.com>]
2360 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
2362 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
2363 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
2364 in CRYPTO_realloc_clean.
2366 Thanks to Tavis Ormandy, Google Security Team, for discovering this
2367 issue and to Adam Langley <agl@chromium.org> for fixing it.
2369 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
2371 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
2373 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2374 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2375 content decryption and always return the same error. Note: this attack
2376 needs on average 2^20 messages so it only affects automated senders. The
2377 old behaviour can be reenabled in the CMS code by setting the
2378 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2379 an MMA defence is not necessary.
2380 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2381 this issue. (CVE-2012-0884)
2384 *) Fix CVE-2011-4619: make sure we really are receiving a
2385 client hello before rejecting multiple SGC restarts. Thanks to
2386 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2389 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
2391 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2392 Thanks to Antonio Martin, Enterprise Secure Access Research and
2393 Development, Cisco Systems, Inc. for discovering this bug and
2394 preparing a fix. (CVE-2012-0050)
2397 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
2399 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2400 of the Vaudenay padding oracle attack on CBC mode encryption
2401 which enables an efficient plaintext recovery attack against
2402 the OpenSSL implementation of DTLS. Their attack exploits timing
2403 differences arising during decryption processing. A research
2404 paper describing this attack can be found at:
2405 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2406 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2407 Security Group at Royal Holloway, University of London
2408 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2409 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2410 for preparing the fix. (CVE-2011-4108)
2411 [Robin Seggelmann, Michael Tuexen]
2413 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
2414 [Ben Laurie, Kasper <ekasper@google.com>]
2416 *) Clear bytes used for block padding of SSL 3.0 records.
2418 [Adam Langley (Google)]
2420 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2421 Kadianakis <desnacked@gmail.com> for discovering this issue and
2422 Adam Langley for preparing the fix. (CVE-2011-4619)
2423 [Adam Langley (Google)]
2425 *) Prevent malformed RFC3779 data triggering an assertion failure.
2426 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2427 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2428 [Rob Austein <sra@hactrn.net>]
2430 *) Fix ssl_ciph.c set-up race.
2431 [Adam Langley (Google)]
2433 *) Fix spurious failures in ecdsatest.c.
2434 [Emilia Käsper (Google)]
2436 *) Fix the BIO_f_buffer() implementation (which was mixing different
2437 interpretations of the '..._len' fields).
2438 [Adam Langley (Google)]
2440 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2441 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2442 threads won't reuse the same blinding coefficients.
2444 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2445 lock to call BN_BLINDING_invert_ex, and avoids one use of
2446 BN_BLINDING_update for each BN_BLINDING structure (previously,
2447 the last update always remained unused).
2448 [Emilia Käsper (Google)]
2450 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2451 for multi-threaded use of ECDH.
2452 [Adam Langley (Google)]
2454 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2457 *) Add protection against ECDSA timing attacks as mentioned in the paper
2458 by Billy Bob Brumley and Nicola Tuveri, see:
2460 http://eprint.iacr.org/2011/232.pdf
2462 [Billy Bob Brumley and Nicola Tuveri]
2464 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
2466 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2467 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2469 *) Fix bug in string printing code: if *any* escaping is enabled we must
2470 escape the escape character (backslash) or the resulting string is
2474 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
2476 *) Disable code workaround for ancient and obsolete Netscape browsers
2477 and servers: an attacker can use it in a ciphersuite downgrade attack.
2478 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2481 *) Fixed J-PAKE implementation error, originally discovered by
2482 Sebastien Martini, further info and confirmation from Stefan
2483 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2486 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
2488 *) Fix extension code to avoid race conditions which can result in a buffer
2489 overrun vulnerability: resumed sessions must not be modified as they can
2490 be shared by multiple threads. CVE-2010-3864
2493 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
2496 *) Don't reencode certificate when calculating signature: cache and use
2497 the original encoding instead. This makes signature verification of
2498 some broken encodings work correctly.
2501 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
2502 is also one of the inputs.
2503 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
2505 *) Don't repeatedly append PBE algorithms to table if they already exist.
2506 Sort table on each new add. This effectively makes the table read only
2507 after all algorithms are added and subsequent calls to PKCS12_pbe_add
2511 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
2513 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
2516 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
2517 access or freeing data twice (CVE-2010-0742)
2518 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
2520 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
2521 common in certificates and some applications which only call
2522 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2526 Reduce copying into .apps and .test in makevms.com
2527 Don't try to use blank CA certificate in CA.com
2528 Allow use of C files from original directories in maketests.com
2529 [Steven M. Schweda" <sms@antinode.info>]
2531 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2533 *) When rejecting SSL/TLS records due to an incorrect version number, never
2534 update s->server with a new major version number. As of
2535 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2536 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2537 the previous behavior could result in a read attempt at NULL when
2538 receiving specific incorrect SSL/TLS records once record payload
2539 protection is active. (CVE-2010-0740)
2540 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2542 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2543 could be crashed if the relevant tables were not present (e.g. chrooted).
2544 [Tomas Hoger <thoger@redhat.com>]
2546 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2548 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2549 [Martin Olsson, Neel Mehta]
2551 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2552 accommodate for stack sorting, always a write lock!).
2555 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2556 excessive delays in the RAND_poll(): over a minute. As a workaround
2557 include a time check in the inner Heap32Next loop too.
2560 *) The code that handled flushing of data in SSL/TLS originally used the
2561 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2562 the problem outlined in PR#1949. The fix suggested there however can
2563 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2564 of Apache). So instead simplify the code to flush unconditionally.
2565 This should be fine since flushing with no data to flush is a no op.
2568 *) Handle TLS versions 2.0 and later properly and correctly use the
2569 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2570 off ancient servers have a habit of sticking around for a while...
2573 *) Modify compression code so it frees up structures without using the
2574 ex_data callbacks. This works around a problem where some applications
2575 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2576 restarting) then use compression (e.g. SSL with compression) later.
2577 This results in significant per-connection memory leaks and
2578 has caused some security issues including CVE-2008-1678 and
2582 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2583 change when encrypting or decrypting.
2586 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2587 connect and renegotiate with servers which do not support RI.
2588 Until RI is more widely deployed this option is enabled by default.
2591 *) Add "missing" ssl ctrls to clear options and mode.
2594 *) If client attempts to renegotiate and doesn't support RI respond with
2595 a no_renegotiation alert as required by RFC5746. Some renegotiating
2596 TLS clients will continue a connection gracefully when they receive
2597 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2598 waiting for a server hello which it will never receive. Now we treat a
2599 received no_renegotiation alert as a fatal error. This is because
2600 applications requesting a renegotiation might well expect it to succeed
2601 and would have no code in place to handle the server denying it so the
2602 only safe thing to do is to terminate the connection.
2605 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2606 peer supports secure renegotiation and 0 otherwise. Print out peer
2607 renegotiation support in s_client/s_server.
2610 *) Replace the highly broken and deprecated SPKAC certification method with
2611 the updated NID creation version. This should correctly handle UTF8.
2614 *) Implement RFC5746. Re-enable renegotiation but require the extension
2615 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2616 turns out to be a bad idea. It has been replaced by
2617 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2618 SSL_CTX_set_options(). This is really not recommended unless you
2619 know what you are doing.
2620 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2622 *) Fixes to stateless session resumption handling. Use initial_ctx when
2623 issuing and attempting to decrypt tickets in case it has changed during
2624 servername handling. Use a non-zero length session ID when attempting
2625 stateless session resumption: this makes it possible to determine if
2626 a resumption has occurred immediately after receiving server hello
2627 (several places in OpenSSL subtly assume this) instead of later in
2631 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2632 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2633 fixes for a few places where the return code is not checked
2635 [Julia Lawall <julia@diku.dk>]
2637 *) Add --strict-warnings option to Configure script to include devteam
2638 warnings in other configurations.
2641 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2642 makes it possible to install openssl libraries in locations which
2643 have names other than "lib", for example "/usr/lib64" which some
2645 [Steve Henson, based on patch from Jeremy Utley]
2647 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2648 X690 8.9.12 and can produce some misleading textual output of OIDs.
2649 [Steve Henson, reported by Dan Kaminsky]
2651 *) Delete MD2 from algorithm tables. This follows the recommendation in
2652 several standards that it is not used in new applications due to
2653 several cryptographic weaknesses. For binary compatibility reasons
2654 the MD2 API is still compiled in by default.
2657 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2661 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2662 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2664 [Guenter <lists@gknw.net>]
2666 *) Fix the server certificate chain building code to use X509_verify_cert(),
2667 it used to have an ad-hoc builder which was unable to cope with anything
2668 other than a simple chain.
2669 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2671 *) Don't check self signed certificate signatures in X509_verify_cert()
2672 by default (a flag can override this): it just wastes time without
2673 adding any security. As a useful side effect self signed root CAs
2674 with non-FIPS digests are now usable in FIPS mode.
2677 *) In dtls1_process_out_of_seq_message() the check if the current message
2678 is already buffered was missing. For every new message was memory
2679 allocated, allowing an attacker to perform an denial of service attack
2680 with sending out of seq handshake messages until there is no memory
2681 left. Additionally every future messege was buffered, even if the
2682 sequence number made no sense and would be part of another handshake.
2683 So only messages with sequence numbers less than 10 in advance will be
2684 buffered. (CVE-2009-1378)
2685 [Robin Seggelmann, discovered by Daniel Mentz]
2687 *) Records are buffered if they arrive with a future epoch to be
2688 processed after finishing the corresponding handshake. There is
2689 currently no limitation to this buffer allowing an attacker to perform
2690 a DOS attack with sending records with future epochs until there is no
2691 memory left. This patch adds the pqueue_size() function to determine
2692 the size of a buffer and limits the record buffer to 100 entries.
2694 [Robin Seggelmann, discovered by Daniel Mentz]
2696 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2697 parent structure is freed. (CVE-2009-1379)
2700 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2701 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2704 [Ilya O. <vrghost@gmail.com>]
2706 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2708 *) Disable renegotiation completely - this fixes a severe security
2709 problem (CVE-2009-3555) at the cost of breaking all
2710 renegotiation. Renegotiation can be re-enabled by setting
2711 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2712 run-time. This is really not recommended unless you know what
2716 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2718 *) Don't set val to NULL when freeing up structures, it is freed up by
2719 underlying code. If sizeof(void *) > sizeof(long) this can result in
2720 zeroing past the valid field. (CVE-2009-0789)
2721 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2723 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2724 checked correctly. This would allow some invalid signed attributes to
2725 appear to verify correctly. (CVE-2009-0591)
2726 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2728 *) Reject UniversalString and BMPString types with invalid lengths. This
2729 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2730 a legal length. (CVE-2009-0590)
2733 *) Set S/MIME signing as the default purpose rather than setting it
2734 unconditionally. This allows applications to override it at the store
2738 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2739 to handle some structures.
2742 *) Improve efficiency of mem_gets: don't search whole buffer each time
2744 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2746 *) New -hex option for openssl rand.
2749 *) Print out UTF8String and NumericString when parsing ASN1.
2752 *) Support NumericString type for name components.
2755 *) Allow CC in the environment to override the automatically chosen
2756 compiler. Note that nothing is done to ensure flags work with the
2760 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2762 *) Properly check EVP_VerifyFinal() and similar return values
2764 [Ben Laurie, Bodo Moeller, Google Security Team]
2766 *) Enable TLS extensions by default.
2769 *) Allow the CHIL engine to be loaded, whether the application is
2770 multithreaded or not. (This does not release the developer from the
2771 obligation to set up the dynamic locking callbacks.)
2772 [Sander Temme <sander@temme.net>]
2774 *) Use correct exit code if there is an error in dgst command.
2775 [Steve Henson; problem pointed out by Roland Dirlewanger]
2777 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2778 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2781 *) Add experimental JPAKE support, including demo authentication in
2782 s_client and s_server.
2785 *) Set the comparison function in v3_addr_canonize().
2786 [Rob Austein <sra@hactrn.net>]
2788 *) Add support for XMPP STARTTLS in s_client.
2789 [Philip Paeps <philip@freebsd.org>]
2791 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2792 to ensure that even with this option, only ciphersuites in the
2793 server's preference list will be accepted. (Note that the option
2794 applies only when resuming a session, so the earlier behavior was
2795 just about the algorithm choice for symmetric cryptography.)
2798 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2800 *) Fix NULL pointer dereference if a DTLS server received
2801 ChangeCipherSpec as first record (CVE-2009-1386).
2804 *) Fix a state transition in s3_srvr.c and d1_srvr.c
2805 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2808 *) The fix in 0.9.8c that supposedly got rid of unsafe
2809 double-checked locking was incomplete for RSA blinding,
2810 addressing just one layer of what turns out to have been
2811 doubly unsafe triple-checked locking.
2813 So now fix this for real by retiring the MONT_HELPER macro
2814 in crypto/rsa/rsa_eay.c.
2816 [Bodo Moeller; problem pointed out by Marius Schilder]
2818 *) Various precautionary measures:
2820 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2822 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2823 (NB: This would require knowledge of the secret session ticket key
2824 to exploit, in which case you'd be SOL either way.)
2826 - Change bn_nist.c so that it will properly handle input BIGNUMs
2827 outside the expected range.
2829 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2832 [Neel Mehta, Bodo Moeller]
2834 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2835 the load fails. Useful for distros.
2836 [Ben Laurie and the FreeBSD team]
2838 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2841 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2844 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2846 This work was sponsored by Logica.
2849 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2850 keystores. Support for SSL/TLS client authentication too.
2851 Not compiled unless enable-capieng specified to Configure.
2853 This work was sponsored by Logica.
2856 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2857 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2858 attribute creation routines such as certifcate requests and PKCS#12
2862 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2864 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2865 handshake which could lead to a cilent crash as found using the
2866 Codenomicon TLS test suite (CVE-2008-1672)
2867 [Steve Henson, Mark Cox]
2869 *) Fix double free in TLS server name extensions which could lead to
2870 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2873 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2875 Clear the error queue to ensure that error entries left from
2876 older function calls do not interfere with the correct operation.
2877 [Lutz Jaenicke, Erik de Castro Lopo]
2879 *) Remove root CA certificates of commercial CAs:
2881 The OpenSSL project does not recommend any specific CA and does not
2882 have any policy with respect to including or excluding any CA.
2883 Therefore it does not make any sense to ship an arbitrary selection
2884 of root CA certificates with the OpenSSL software.
2887 *) RSA OAEP patches to fix two separate invalid memory reads.
2888 The first one involves inputs when 'lzero' is greater than
2889 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2890 before the beginning of from). The second one involves inputs where
2891 the 'db' section contains nothing but zeroes (there is a one-byte
2892 invalid read after the end of 'db').
2893 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2895 *) Partial backport from 0.9.9-dev:
2897 Introduce bn_mul_mont (dedicated Montgomery multiplication
2898 procedure) as a candidate for BIGNUM assembler implementation.
2899 While 0.9.9-dev uses assembler for various architectures, only
2900 x86_64 is available by default here in the 0.9.8 branch, and
2901 32-bit x86 is available through a compile-time setting.
2903 To try the 32-bit x86 assembler implementation, use Configure
2904 option "enable-montasm" (which exists only for this backport).
2906 As "enable-montasm" for 32-bit x86 disclaims code stability
2907 anyway, in this constellation we activate additional code
2908 backported from 0.9.9-dev for further performance improvements,
2909 namely BN_from_montgomery_word. (To enable this otherwise,
2910 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2912 [Andy Polyakov (backport partially by Bodo Moeller)]
2914 *) Add TLS session ticket callback. This allows an application to set
2915 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2916 values. This is useful for key rollover for example where several key
2917 sets may exist with different names.
2920 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2921 This was broken until now in 0.9.8 releases, such that the only way
2922 a registered ENGINE could be used (assuming it initialises
2923 successfully on the host) was to explicitly set it as the default
2924 for the relevant algorithms. This is in contradiction with 0.9.7
2925 behaviour and the documentation. With this fix, when an ENGINE is
2926 registered into a given algorithm's table of implementations, the
2927 'uptodate' flag is reset so that auto-discovery will be used next
2928 time a new context for that algorithm attempts to select an
2930 [Ian Lister (tweaked by Geoff Thorpe)]
2932 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2933 implemention in the following ways:
2935 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2938 Lack of BER streaming support means one pass streaming processing is
2939 only supported if data is detached: setting the streaming flag is
2940 ignored for embedded content.
2942 CMS support is disabled by default and must be explicitly enabled
2943 with the enable-cms configuration option.
2946 *) Update the GMP engine glue to do direct copies between BIGNUM and
2947 mpz_t when openssl and GMP use the same limb size. Otherwise the
2948 existing "conversion via a text string export" trick is still used.
2949 [Paul Sheer <paulsheer@gmail.com>]
2951 *) Zlib compression BIO. This is a filter BIO which compressed and
2952 uncompresses any data passed through it.
2955 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2956 RFC3394 compatible AES key wrapping.
2959 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2960 sets string data without copying. X509_ALGOR_set0() and
2961 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2962 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2963 from an X509_ATTRIBUTE structure optionally checking it occurs only
2964 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2968 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2969 to get the expected BN_FLG_CONSTTIME behavior.
2970 [Bodo Moeller (Google)]
2974 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2975 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2976 - added some more tests to do_tests.pl
2977 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2978 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2979 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2980 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2981 - various changes to netware.pl to enable gcc-cross builds on Win32
2983 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2984 - various changes to fix missing prototype warnings
2985 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2986 - added AES, WHIRLPOOL and CPUID assembler code to build files
2987 - added missing AES assembler make rules to mk1mf.pl
2988 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2989 [Guenter Knauf <eflash@gmx.net>]
2991 *) Implement certificate status request TLS extension defined in RFC3546.
2992 A client can set the appropriate parameters and receive the encoded
2993 OCSP response via a callback. A server can query the supplied parameters
2994 and set the encoded OCSP response in the callback. Add simplified examples
2995 to s_client and s_server.
2998 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3000 *) Fix various bugs:
3001 + Binary incompatibility of ssl_ctx_st structure
3002 + DTLS interoperation with non-compliant servers
3003 + Don't call get_session_cb() without proposed session
3004 + Fix ia64 assembler code
3005 [Andy Polyakov, Steve Henson]
3007 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3009 *) DTLS Handshake overhaul. There were longstanding issues with
3010 OpenSSL DTLS implementation, which were making it impossible for
3011 RFC 4347 compliant client to communicate with OpenSSL server.
3012 Unfortunately just fixing these incompatibilities would "cut off"
3013 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3014 server keeps tolerating non RFC compliant syntax. The opposite is
3015 not true, 0.9.8f client can not communicate with earlier server.
3016 This update even addresses CVE-2007-4995.
3019 *) Changes to avoid need for function casts in OpenSSL: some compilers
3020 (gcc 4.2 and later) reject their use.
3021 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3024 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3025 RFC4507bis. The encrypted ticket format is an encrypted encoded
3026 SSL_SESSION structure, that way new session features are automatically
3029 If a client application caches session in an SSL_SESSION structure
3030 support is transparent because tickets are now stored in the encoded
3033 The SSL_CTX structure automatically generates keys for ticket
3034 protection in servers so again support should be possible
3035 with no application modification.
3037 If a client or server wishes to disable RFC4507 support then the option
3038 SSL_OP_NO_TICKET can be set.
3040 Add a TLS extension debugging callback to allow the contents of any client
3041 or server extensions to be examined.
3043 This work was sponsored by Google.
3046 *) Add initial support for TLS extensions, specifically for the server_name
3047 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3048 have new members for a host name. The SSL data structure has an
3049 additional member SSL_CTX *initial_ctx so that new sessions can be
3050 stored in that context to allow for session resumption, even after the
3051 SSL has been switched to a new SSL_CTX in reaction to a client's
3052 server_name extension.
3054 New functions (subject to change):
3056 SSL_get_servername()
3057 SSL_get_servername_type()
3060 New CTRL codes and macros (subject to change):
3062 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3063 - SSL_CTX_set_tlsext_servername_callback()
3064 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3065 - SSL_CTX_set_tlsext_servername_arg()
3066 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3068 openssl s_client has a new '-servername ...' option.
3070 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3071 '-key2 ...', '-servername_fatal' (subject to change). This allows
3072 testing the HostName extension for a specific single host name ('-cert'
3073 and '-key' remain fallbacks for handshakes without HostName
3074 negotiation). If the unrecognized_name alert has to be sent, this by
3075 default is a warning; it becomes fatal with the '-servername_fatal'
3078 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3080 *) Add AES and SSE2 assembly language support to VC++ build.
3083 *) Mitigate attack on final subtraction in Montgomery reduction.
3086 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3087 (which previously caused an internal error).
3090 *) Squeeze another 10% out of IGE mode when in != out.
3093 *) AES IGE mode speedup.
3094 [Dean Gaudet (Google)]
3096 *) Add the Korean symmetric 128-bit cipher SEED (see
3097 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3098 add SEED ciphersuites from RFC 4162:
3100 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3101 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3102 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3103 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3105 To minimize changes between patchlevels in the OpenSSL 0.9.8
3106 series, SEED remains excluded from compilation unless OpenSSL
3107 is configured with 'enable-seed'.
3108 [KISA, Bodo Moeller]
3110 *) Mitigate branch prediction attacks, which can be practical if a
3111 single processor is shared, allowing a spy process to extract
3112 information. For detailed background information, see
3113 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3114 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3115 and Necessary Software Countermeasures"). The core of the change
3116 are new versions BN_div_no_branch() and
3117 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3118 respectively, which are slower, but avoid the security-relevant
3119 conditional branches. These are automatically called by BN_div()
3120 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3121 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3122 remove a conditional branch.
3124 BN_FLG_CONSTTIME is the new name for the previous
3125 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3126 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3127 in the exponent causes BN_mod_exp_mont() to use the alternative
3128 implementation in BN_mod_exp_mont_consttime().) The old name
3129 remains as a deprecated alias.
3131 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3132 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3133 constant-time implementations for more than just exponentiation.
3134 Here too the old name is kept as a deprecated alias.
3136 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3137 the BN_BLINDING structure gets an independent copy of the
3138 modulus. This means that the previous "BIGNUM *m" argument to
3139 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3140 essentially becomes "const BIGNUM *m", although we can't actually
3141 change this in the header file before 0.9.9. It allows
3142 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3143 enable BN_FLG_CONSTTIME.
3145 [Matthew D Wood (Intel Corp)]
3147 *) In the SSL/TLS server implementation, be strict about session ID
3148 context matching (which matters if an application uses a single
3149 external cache for different purposes). Previously,
3150 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3151 set. This did ensure strict client verification, but meant that,
3152 with applications using a single external cache for quite
3153 different requirements, clients could circumvent ciphersuite
3154 restrictions for a given session ID context by starting a session
3155 in a different context.
3158 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3159 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3160 authentication-only ciphersuites.
3163 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3164 not complete and could lead to a possible single byte overflow
3165 (CVE-2007-5135) [Ben Laurie]
3167 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3169 *) Since AES128 and AES256 (and similarly Camellia128 and
3170 Camellia256) share a single mask bit in the logic of
3171 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3172 kludge to work properly if AES128 is available and AES256 isn't
3173 (or if Camellia128 is available and Camellia256 isn't).
3176 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3177 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3178 When a point or a seed is encoded in a BIT STRING, we need to
3179 prevent the removal of trailing zero bits to get the proper DER
3180 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3181 of a NamedBitList, for which trailing 0 bits need to be removed.)
3184 *) Have SSL/TLS server implementation tolerate "mismatched" record
3185 protocol version while receiving ClientHello even if the
3186 ClientHello is fragmented. (The server can't insist on the
3187 particular protocol version it has chosen before the ServerHello
3188 message has informed the client about his choice.)
3191 *) Add RFC 3779 support.
3192 [Rob Austein for ARIN, Ben Laurie]
3194 *) Load error codes if they are not already present instead of using a
3195 static variable. This allows them to be cleanly unloaded and reloaded.
3196 Improve header file function name parsing.
3199 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3200 or CAPABILITY handshake as required by RFCs.
3203 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3205 *) Introduce limits to prevent malicious keys being able to
3206 cause a denial of service. (CVE-2006-2940)
3207 [Steve Henson, Bodo Moeller]
3209 *) Fix ASN.1 parsing of certain invalid structures that can result
3210 in a denial of service. (CVE-2006-2937) [Steve Henson]
3212 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3213 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3215 *) Fix SSL client code which could crash if connecting to a
3216 malicious SSLv2 server. (CVE-2006-4343)
3217 [Tavis Ormandy and Will Drewry, Google Security Team]
3219 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3220 match only those. Before that, "AES256-SHA" would be interpreted
3221 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3222 the same strength classification in 0.9.7h) as we currently only
3223 have a single AES bit in the ciphersuite description bitmap.
3224 That change, however, also applied to ciphersuite strings such as
3225 "RC4-MD5" that intentionally matched multiple ciphersuites --
3226 namely, SSL 2.0 ciphersuites in addition to the more common ones
3227 from SSL 3.0/TLS 1.0.
3229 So we change the selection algorithm again: Naming an explicit
3230 ciphersuite selects this one ciphersuite, and any other similar
3231 ciphersuite (same bitmap) from *other* protocol versions.
3232 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3233 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3235 Since SSL 2.0 does not have any ciphersuites for which the
3236 128/256 bit distinction would be relevant, this works for now.
3237 The proper fix will be to use different bits for AES128 and
3238 AES256, which would have avoided the problems from the beginning;
3239 however, bits are scarce, so we can only do this in a new release
3240 (not just a patchlevel) when we can change the SSL_CIPHER
3241 definition to split the single 'unsigned long mask' bitmap into
3242 multiple values to extend the available space.
3246 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3248 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3249 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3251 *) Add AES IGE and biIGE modes.
3254 *) Change the Unix randomness entropy gathering to use poll() when
3255 possible instead of select(), since the latter has some
3256 undesirable limitations.
3257 [Darryl Miles via Richard Levitte and Bodo Moeller]
3259 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3260 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3261 cannot be implicitly activated as part of, e.g., the "AES" alias.
3262 However, please upgrade to OpenSSL 0.9.9[-dev] for
3263 non-experimental use of the ECC ciphersuites to get TLS extension
3264 support, which is required for curve and point format negotiation
3265 to avoid potential handshake problems.
3268 *) Disable rogue ciphersuites:
3270 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3271 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3272 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3274 The latter two were purportedly from
3275 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3278 Also deactivate the remaining ciphersuites from
3279 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3280 unofficial, and the ID has long expired.
3283 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3284 dual-core machines) and other potential thread-safety issues.
3287 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3288 versions), which is now available for royalty-free use
3289 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3290 Also, add Camellia TLS ciphersuites from RFC 4132.
3292 To minimize changes between patchlevels in the OpenSSL 0.9.8
3293 series, Camellia remains excluded from compilation unless OpenSSL
3294 is configured with 'enable-camellia'.
3297 *) Disable the padding bug check when compression is in use. The padding
3298 bug check assumes the first packet is of even length, this is not
3299 necessarily true if compresssion is enabled and can result in false
3300 positives causing handshake failure. The actual bug test is ancient
3301 code so it is hoped that implementations will either have fixed it by
3302 now or any which still have the bug do not support compression.
3305 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3307 *) When applying a cipher rule check to see if string match is an explicit
3308 cipher suite and only match that one cipher suite if it is.
3311 *) Link in manifests for VC++ if needed.
3312 [Austin Ziegler <halostatue@gmail.com>]
3314 *) Update support for ECC-based TLS ciphersuites according to
3315 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3316 TLS extensions, which are supported starting with the 0.9.9
3317 branch, not in the OpenSSL 0.9.8 branch).
3320 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3321 opaque EVP_CIPHER_CTX handling.
3324 *) Fixes and enhancements to zlib compression code. We now only use
3325 "zlib1.dll" and use the default __cdecl calling convention on Win32
3326 to conform with the standards mentioned here:
3327 http://www.zlib.net/DLL_FAQ.txt
3328 Static zlib linking now works on Windows and the new --with-zlib-include
3329 --with-zlib-lib options to Configure can be used to supply the location
3330 of the headers and library. Gracefully handle case where zlib library
3334 *) Several fixes and enhancements to the OID generation code. The old code
3335 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
3336 handle numbers larger than ULONG_MAX, truncated printing and had a
3337 non standard OBJ_obj2txt() behaviour.
3340 *) Add support for building of engines under engine/ as shared libraries
3341 under VC++ build system.
3344 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
3345 Hopefully, we will not see any false combination of paths any more.
3348 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
3350 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3351 (part of SSL_OP_ALL). This option used to disable the
3352 countermeasure against man-in-the-middle protocol-version
3353 rollback in the SSL 2.0 server implementation, which is a bad
3354 idea. (CVE-2005-2969)
3356 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3357 for Information Security, National Institute of Advanced Industrial
3358 Science and Technology [AIST], Japan)]
3360 *) Add two function to clear and return the verify parameter flags.
3363 *) Keep cipherlists sorted in the source instead of sorting them at
3364 runtime, thus removing the need for a lock.
3367 *) Avoid some small subgroup attacks in Diffie-Hellman.
3368 [Nick Mathewson and Ben Laurie]
3370 *) Add functions for well-known primes.
3373 *) Extended Windows CE support.
3374 [Satoshi Nakamura and Andy Polyakov]
3376 *) Initialize SSL_METHOD structures at compile time instead of during
3377 runtime, thus removing the need for a lock.
3380 *) Make PKCS7_decrypt() work even if no certificate is supplied by
3381 attempting to decrypt each encrypted key in turn. Add support to
3385 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
3387 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
3390 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
3393 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
3394 key into the same file any more.
3397 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
3400 *) Add -utf8 command line and config file option to 'ca'.
3401 [Stefan <stf@udoma.org]
3403 *) Removed the macro des_crypt(), as it seems to conflict with some
3404 libraries. Use DES_crypt().
3407 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
3408 involves renaming the source and generated shared-libs for
3409 both. The engines will accept the corrected or legacy ids
3410 ('ncipher' and '4758_cca' respectively) when binding. NB,
3411 this only applies when building 'shared'.
3412 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
3414 *) Add attribute functions to EVP_PKEY structure. Modify
3415 PKCS12_create() to recognize a CSP name attribute and
3416 use it. Make -CSP option work again in pkcs12 utility.
3419 *) Add new functionality to the bn blinding code:
3420 - automatic re-creation of the BN_BLINDING parameters after
3421 a fixed number of uses (currently 32)
3422 - add new function for parameter creation
3423 - introduce flags to control the update behaviour of the
3424 BN_BLINDING parameters
3425 - hide BN_BLINDING structure
3426 Add a second BN_BLINDING slot to the RSA structure to improve
3427 performance when a single RSA object is shared among several
3431 *) Add support for DTLS.
3432 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
3434 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
3435 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
3438 *) Remove buggy and incomplete DH cert support from
3439 ssl/ssl_rsa.c and ssl/s3_both.c
3442 *) Use SHA-1 instead of MD5 as the default digest algorithm for
3443 the apps/openssl applications.
3446 *) Compile clean with "-Wall -Wmissing-prototypes
3447 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
3448 DEBUG_SAFESTACK must also be set.
3451 *) Change ./Configure so that certain algorithms can be disabled by default.
3452 The new counterpiece to "no-xxx" is "enable-xxx".
3454 The patented RC5 and MDC2 algorithms will now be disabled unless
3455 "enable-rc5" and "enable-mdc2", respectively, are specified.
3457 (IDEA remains enabled despite being patented. This is because IDEA
3458 is frequently required for interoperability, and there is no license
3459 fee for non-commercial use. As before, "no-idea" can be used to
3460 avoid this algorithm.)
3464 *) Add processing of proxy certificates (see RFC 3820). This work was
3465 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3466 EGEE (Enabling Grids for E-science in Europe).
3469 *) RC4 performance overhaul on modern architectures/implementations, such
3470 as Intel P4, IA-64 and AMD64.
3473 *) New utility extract-section.pl. This can be used specify an alternative
3474 section number in a pod file instead of having to treat each file as
3475 a separate case in Makefile. This can be done by adding two lines to the
3478 =for comment openssl_section:XXX
3480 The blank line is mandatory.
3484 *) New arguments -certform, -keyform and -pass for s_client and s_server
3485 to allow alternative format key and certificate files and passphrase
3489 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3490 update associated structures and add various utility functions.
3492 Add new policy related verify parameters, include policy checking in
3493 standard verify code. Enhance 'smime' application with extra parameters
3494 to support policy checking and print out.
3497 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3498 Nehemiah processors. These extensions support AES encryption in hardware
3499 as well as RNG (though RNG support is currently disabled).
3500 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3502 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3505 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3506 [Andy Polyakov and a number of other people]
3508 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3509 implementation contributed by IBM.
3510 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3512 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3513 exponent rather than 'unsigned long'. There is a corresponding change to
3514 the new 'rsa_keygen' element of the RSA_METHOD structure.
3515 [Jelte Jansen, Geoff Thorpe]
3517 *) Functionality for creating the initial serial number file is now
3518 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3520 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3521 number file to 1, which is bound to cause problems. To avoid
3522 the problems while respecting compatibility between different 0.9.7
3523 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3524 CA.pl for serial number initialization. With the new release 0.9.8,
3525 we can fix the problem directly in the 'ca' utility.)
3528 *) Reduced header interdepencies by declaring more opaque objects in
3529 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3530 give fewer recursive includes, which could break lazy source code - so
3531 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3532 developers should define this symbol when building and using openssl to
3533 ensure they track the recommended behaviour, interfaces, [etc], but
3534 backwards-compatible behaviour prevails when this isn't defined.
3537 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3540 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3541 This will generate a random key of the appropriate length based on the
3542 cipher context. The EVP_CIPHER can provide its own random key generation
3543 routine to support keys of a specific form. This is used in the des and
3544 3des routines to generate a key of the correct parity. Update S/MIME
3545 code to use new functions and hence generate correct parity DES keys.
3546 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3547 valid (weak or incorrect parity).
3550 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3551 as looking them up. This is useful when the verified structure may contain
3552 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3553 present unless the new PKCS7_NO_CRL flag is asserted.
3556 *) Extend ASN1 oid configuration module. It now additionally accepts the
3559 shortName = some long name, 1.2.3.4
3562 *) Reimplemented the BN_CTX implementation. There is now no more static
3563 limitation on the number of variables it can handle nor the depth of the
3564 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3565 information can now expand as required, and rather than having a single
3566 static array of bignums, BN_CTX now uses a linked-list of such arrays
3567 allowing it to expand on demand whilst maintaining the usefulness of
3568 BN_CTX's "bundling".
3571 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3572 to allow all RSA operations to function using a single BN_CTX.
3575 *) Preliminary support for certificate policy evaluation and checking. This
3576 is initially intended to pass the tests outlined in "Conformance Testing
3577 of Relying Party Client Certificate Path Processing Logic" v1.07.
3580 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3581 remained unused and not that useful. A variety of other little bignum
3582 tweaks and fixes have also been made continuing on from the audit (see
3586 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3587 associated ASN1, EVP and SSL functions and old ASN1 macros.
3590 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3591 and this should never fail. So the return value from the use of
3592 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3593 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3596 *) BN_CTX_get() should return zero-valued bignums, providing the same
3597 initialised value as BN_new().
3598 [Geoff Thorpe, suggested by Ulf Möller]
3600 *) Support for inhibitAnyPolicy certificate extension.
3603 *) An audit of the BIGNUM code is underway, for which debugging code is
3604 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3605 is considered valid when processing BIGNUMs, and causes execution to
3606 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3607 further steps are taken to deliberately pollute unused data in BIGNUM
3608 structures to try and expose faulty code further on. For now, openssl will
3609 (in its default mode of operation) continue to tolerate the inconsistent
3610 forms that it has tolerated in the past, but authors and packagers should
3611 consider trying openssl and their own applications when compiled with
3612 these debugging symbols defined. It will help highlight potential bugs in
3613 their own code, and will improve the test coverage for OpenSSL itself. At
3614 some point, these tighter rules will become openssl's default to improve
3615 maintainability, though the assert()s and other overheads will remain only
3616 in debugging configurations. See bn.h for more details.
3617 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3619 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3620 that can only be obtained through BN_CTX_new() (which implicitly
3621 initialises it). The presence of this function only made it possible
3622 to overwrite an existing structure (and cause memory leaks).
3625 *) Because of the callback-based approach for implementing LHASH as a
3626 template type, lh_insert() adds opaque objects to hash-tables and
3627 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3628 to clean up those corresponding objects before destroying the hash table
3629 (and losing the object pointers). So some over-zealous constifications in
3630 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3631 objects as "const" and the lh_doall[_arg] callback wrappers are not
3632 prototyped to have "const" restrictions on the object pointers they are
3633 given (and so aren't required to cast them away any more).
3636 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3637 (speed) prefers to use its own implementation. The two implementations
3638 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3639 its object type properly exposed (MS_TM) instead of casting to/from "char
3640 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3641 aren't necessarily the greatest nomenclatures - but this is what was used
3642 internally to the implementation so I've used that for now.
3645 *) Ensure that deprecated functions do not get compiled when
3646 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3647 the self-tests were still using deprecated key-generation functions so
3648 these have been updated also.
3651 *) Reorganise PKCS#7 code to separate the digest location functionality
3652 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
3653 New function PKCS7_set_digest() to set the digest type for PKCS#7
3654 digestedData type. Add additional code to correctly generate the
3655 digestedData type and add support for this type in PKCS7 initialization
3659 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3660 structure of type "other".
3663 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3664 sure the loop does correctly stop and breaking ("division by zero")
3665 modulus operations are not performed. The (pre-generated) prime
3666 table crypto/bn/bn_prime.h was already correct, but it could not be
3667 re-generated on some platforms because of the "division by zero"
3668 situation in the script.
3669 [Ralf S. Engelschall]
3671 *) Update support for ECC-based TLS ciphersuites according to
3672 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3673 SHA-1 now is only used for "small" curves (where the
3674 representation of a field element takes up to 24 bytes); for
3675 larger curves, the field element resulting from ECDH is directly
3676 used as premaster secret.
3677 [Douglas Stebila (Sun Microsystems Laboratories)]
3679 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3680 curve secp160r1 to the tests.
3681 [Douglas Stebila (Sun Microsystems Laboratories)]
3683 *) Add the possibility to load symbols globally with DSO.
3684 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3686 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3687 control of the error stack.
3690 *) Add support for STORE in ENGINE.
3693 *) Add the STORE type. The intention is to provide a common interface
3694 to certificate and key stores, be they simple file-based stores, or
3695 HSM-type store, or LDAP stores, or...
3696 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3699 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3700 pass a list of arguments to any function as well as provide a way
3701 for a function to pass data back to the caller.
3704 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3705 works like BUF_strdup() but can be used to duplicate a portion of
3706 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3710 *) Add the function sk_find_ex() which works like sk_find(), but will
3711 return an index to an element even if an exact match couldn't be
3712 found. The index is guaranteed to point at the element where the
3713 searched-for key would be inserted to preserve sorting order.
3716 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3717 takes an extra flags argument for optional functionality. Currently,
3718 the following flags are defined:
3720 OBJ_BSEARCH_VALUE_ON_NOMATCH
3721 This one gets OBJ_bsearch_ex() to return a pointer to the first
3722 element where the comparing function returns a negative or zero
3725 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3726 This one gets OBJ_bsearch_ex() to return a pointer to the first
3727 element where the comparing function returns zero. This is useful
3728 if there are more than one element where the comparing function
3732 *) Make it possible to create self-signed certificates with 'openssl ca'
3733 in such a way that the self-signed certificate becomes part of the
3734 CA database and uses the same mechanisms for serial number generation
3735 as all other certificate signing. The new flag '-selfsign' enables
3736 this functionality. Adapt CA.sh and CA.pl.in.
3739 *) Add functionality to check the public key of a certificate request
3740 against a given private. This is useful to check that a certificate
3741 request can be signed by that key (self-signing).
3744 *) Make it possible to have multiple active certificates with the same
3745 subject in the CA index file. This is done only if the keyword
3746 'unique_subject' is set to 'no' in the main CA section (default
3747 if 'CA_default') of the configuration file. The value is saved
3748 with the database itself in a separate index attribute file,
3749 named like the index file with '.attr' appended to the name.
3752 *) Generate muti valued AVAs using '+' notation in config files for
3756 *) Support for nameConstraints certificate extension.
3759 *) Support for policyConstraints certificate extension.
3762 *) Support for policyMappings certificate extension.
3765 *) Make sure the default DSA_METHOD implementation only uses its
3766 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3767 and change its own handlers to be NULL so as to remove unnecessary
3768 indirection. This lets alternative implementations fallback to the
3769 default implementation more easily.
3772 *) Support for directoryName in GeneralName related extensions
3776 *) Make it possible to link applications using Makefile.shared.
3777 Make that possible even when linking against static libraries!
3780 *) Support for single pass processing for S/MIME signing. This now
3781 means that S/MIME signing can be done from a pipe, in addition
3782 cleartext signing (multipart/signed type) is effectively streaming
3783 and the signed data does not need to be all held in memory.
3785 This is done with a new flag PKCS7_STREAM. When this flag is set
3786 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3787 is done after the data is output (and digests calculated) in
3788 SMIME_write_PKCS7().
3791 *) Add full support for -rpath/-R, both in shared libraries and
3792 applications, at least on the platforms where it's known how
3796 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3797 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3798 will now compute a table of multiples of the generator that
3799 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3800 faster (notably in the case of a single point multiplication,
3801 scalar * generator).
3802 [Nils Larsch, Bodo Moeller]
3804 *) IPv6 support for certificate extensions. The various extensions
3805 which use the IP:a.b.c.d can now take IPv6 addresses using the
3806 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3810 *) Added an ENGINE that implements RSA by performing private key
3811 exponentiations with the GMP library. The conversions to and from
3812 GMP's mpz_t format aren't optimised nor are any montgomery forms
3813 cached, and on x86 it appears OpenSSL's own performance has caught up.
3814 However there are likely to be other architectures where GMP could
3815 provide a boost. This ENGINE is not built in by default, but it can be
3816 specified at Configure time and should be accompanied by the necessary
3817 linker additions, eg;
3818 ./config -DOPENSSL_USE_GMP -lgmp
3821 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3822 testing availability of engines with "-t" - the old behaviour is
3823 produced by increasing the feature's verbosity with "-tt".
3826 *) ECDSA routines: under certain error conditions uninitialized BN objects
3827 could be freed. Solution: make sure initialization is performed early
3828 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3832 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3833 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3834 software implementations. For DSA and DH, parameter generation can
3835 also be overriden by providing the appropriate method callbacks.
3838 *) Change the "progress" mechanism used in key-generation and
3839 primality testing to functions that take a new BN_GENCB pointer in
3840 place of callback/argument pairs. The new API functions have "_ex"
3841 postfixes and the older functions are reimplemented as wrappers for
3842 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3843 declarations of the old functions to help (graceful) attempts to
3844 migrate to the new functions. Also, the new key-generation API
3845 functions operate on a caller-supplied key-structure and return
3846 success/failure rather than returning a key or NULL - this is to
3847 help make "keygen" another member function of RSA_METHOD etc.
3849 Example for using the new callback interface:
3851 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3855 BN_GENCB_set(&my_cb, my_callback, my_arg);
3857 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3858 /* For the meaning of a, b in calls to my_callback(), see the
3859 * documentation of the function that calls the callback.
3860 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3861 * my_callback should return 1 if it wants BN_is_prime_ex()
3862 * to continue, or 0 to stop.
3867 *) Change the ZLIB compression method to be stateful, and make it
3868 available to TLS with the number defined in
3869 draft-ietf-tls-compression-04.txt.
3872 *) Add the ASN.1 structures and functions for CertificatePair, which
3873 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3875 CertificatePair ::= SEQUENCE {
3876 forward [0] Certificate OPTIONAL,
3877 reverse [1] Certificate OPTIONAL,
3878 -- at least one of the pair shall be present -- }
3880 Also implement the PEM functions to read and write certificate
3881 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3883 This needed to be defined, mostly for the sake of the LDAP
3884 attribute crossCertificatePair, but may prove useful elsewhere as
3888 *) Make it possible to inhibit symlinking of shared libraries in
3889 Makefile.shared, for Cygwin's sake.
3892 *) Extend the BIGNUM API by creating a function
3893 void BN_set_negative(BIGNUM *a, int neg);
3894 and a macro that behave like
3895 int BN_is_negative(const BIGNUM *a);
3897 to avoid the need to access 'a->neg' directly in applications.
3900 *) Implement fast modular reduction for pseudo-Mersenne primes
3901 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3902 EC_GROUP_new_curve_GFp() will now automatically use this
3904 [Nils Larsch <nla@trustcenter.de>]
3906 *) Add new lock type (CRYPTO_LOCK_BN).
3909 *) Change the ENGINE framework to automatically load engines
3910 dynamically from specific directories unless they could be
3911 found to already be built in or loaded. Move all the
3912 current engines except for the cryptodev one to a new
3914 The engines in engines/ are built as shared libraries if
3915 the "shared" options was given to ./Configure or ./config.
3916 Otherwise, they are inserted in libcrypto.a.
3917 /usr/local/ssl/engines is the default directory for dynamic
3918 engines, but that can be overriden at configure time through
3919 the usual use of --prefix and/or --openssldir, and at run
3920 time with the environment variable OPENSSL_ENGINES.
3921 [Geoff Thorpe and Richard Levitte]
3923 *) Add Makefile.shared, a helper makefile to build shared
3924 libraries. Adapt Makefile.org.
3927 *) Add version info to Win32 DLLs.
3928 [Peter 'Luna' Runestig" <peter@runestig.com>]
3930 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3931 can be added using this API to created arbitrary PKCS#12
3932 files while avoiding the low level API.
3934 New options to PKCS12_create(), key or cert can be NULL and
3935 will then be omitted from the output file. The encryption
3936 algorithm NIDs can be set to -1 for no encryption, the mac
3937 iteration count can be set to 0 to omit the mac.
3939 Enhance pkcs12 utility by making the -nokeys and -nocerts
3940 options work when creating a PKCS#12 file. New option -nomac
3941 to omit the mac, NONE can be set for an encryption algorithm.
3942 New code is modified to use the enhanced PKCS12_create()
3943 instead of the low level API.
3946 *) Extend ASN1 encoder to support indefinite length constructed
3947 encoding. This can output sequences tags and octet strings in
3948 this form. Modify pk7_asn1.c to support indefinite length
3949 encoding. This is experimental and needs additional code to
3950 be useful, such as an ASN1 bio and some enhanced streaming
3953 Extend template encode functionality so that tagging is passed
3954 down to the template encoder.
3957 *) Let 'openssl req' fail if an argument to '-newkey' is not
3958 recognized instead of using RSA as a default.
3961 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3962 As these are not official, they are not included in "ALL";
3963 the "ECCdraft" ciphersuite group alias can be used to select them.
3964 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3966 *) Add ECDH engine support.
3967 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3969 *) Add ECDH in new directory crypto/ecdh/.
3970 [Douglas Stebila (Sun Microsystems Laboratories)]
3972 *) Let BN_rand_range() abort with an error after 100 iterations
3973 without success (which indicates a broken PRNG).
3976 *) Change BN_mod_sqrt() so that it verifies that the input value
3977 is really the square of the return value. (Previously,
3978 BN_mod_sqrt would show GIGO behaviour.)
3981 *) Add named elliptic curves over binary fields from X9.62, SECG,
3982 and WAP/WTLS; add OIDs that were still missing.
3984 [Sheueling Chang Shantz and Douglas Stebila
3985 (Sun Microsystems Laboratories)]
3987 *) Extend the EC library for elliptic curves over binary fields
3988 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3991 EC_GF2m_simple_method
3995 EC_GROUP_new_curve_GF2m
3996 EC_GROUP_set_curve_GF2m
3997 EC_GROUP_get_curve_GF2m
3998 EC_POINT_set_affine_coordinates_GF2m
3999 EC_POINT_get_affine_coordinates_GF2m
4000 EC_POINT_set_compressed_coordinates_GF2m
4002 Point compression for binary fields is disabled by default for
4003 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4006 As binary polynomials are represented as BIGNUMs, various members
4007 of the EC_GROUP and EC_POINT data structures can be shared
4008 between the implementations for prime fields and binary fields;
4009 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4010 are essentially identical to their ..._GFp counterparts.
4011 (For simplicity, the '..._GFp' prefix has been dropped from
4012 various internal method names.)
4014 An internal 'field_div' method (similar to 'field_mul' and
4015 'field_sqr') has been added; this is used only for binary fields.
4017 [Sheueling Chang Shantz and Douglas Stebila
4018 (Sun Microsystems Laboratories)]
4020 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4021 through methods ('mul', 'precompute_mult').
4023 The generic implementations (now internally called 'ec_wNAF_mul'
4024 and 'ec_wNAF_precomputed_mult') remain the default if these
4025 methods are undefined.
4027 [Sheueling Chang Shantz and Douglas Stebila
4028 (Sun Microsystems Laboratories)]
4030 *) New function EC_GROUP_get_degree, which is defined through
4031 EC_METHOD. For curves over prime fields, this returns the bit
4032 length of the modulus.
4034 [Sheueling Chang Shantz and Douglas Stebila
4035 (Sun Microsystems Laboratories)]
4037 *) New functions EC_GROUP_dup, EC_POINT_dup.
4038 (These simply call ..._new and ..._copy).
4040 [Sheueling Chang Shantz and Douglas Stebila
4041 (Sun Microsystems Laboratories)]
4043 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4044 Polynomials are represented as BIGNUMs (where the sign bit is not
4045 used) in the following functions [macros]:
4048 BN_GF2m_sub [= BN_GF2m_add]
4049 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4050 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4051 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4053 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4054 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4055 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4056 BN_GF2m_cmp [= BN_ucmp]
4058 (Note that only the 'mod' functions are actually for fields GF(2^m).
4059 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4061 For some functions, an the irreducible polynomial defining a
4062 field can be given as an 'unsigned int[]' with strictly
4063 decreasing elements giving the indices of those bits that are set;
4064 i.e., p[] represents the polynomial
4065 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4067 p[0] > p[1] > ... > p[k] = 0.
4068 This applies to the following functions:
4073 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4074 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4076 BN_GF2m_mod_sqrt_arr
4077 BN_GF2m_mod_solve_quad_arr
4081 Conversion can be performed by the following functions:
4086 bntest.c has additional tests for binary polynomial arithmetic.
4088 Two implementations for BN_GF2m_mod_div() are available.
4089 The default algorithm simply uses BN_GF2m_mod_inv() and
4090 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4091 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4092 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4094 [Sheueling Chang Shantz and Douglas Stebila
4095 (Sun Microsystems Laboratories)]
4097 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4098 functionality is disabled at compile-time.
4099 [Douglas Stebila <douglas.stebila@sun.com>]
4101 *) Change default behaviour of 'openssl asn1parse' so that more
4102 information is visible when viewing, e.g., a certificate:
4104 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4105 mode the content of non-printable OCTET STRINGs is output in a
4106 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4107 avoid the appearance of a printable string.
4108 [Nils Larsch <nla@trustcenter.de>]
4110 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4112 EC_GROUP_set_asn1_flag()
4113 EC_GROUP_get_asn1_flag()
4114 EC_GROUP_set_point_conversion_form()
4115 EC_GROUP_get_point_conversion_form()
4116 These control ASN1 encoding details:
4117 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4118 has been set to OPENSSL_EC_NAMED_CURVE.
4119 - Points are encoded in uncompressed form by default; options for
4120 asn1_for are as for point2oct, namely
4121 POINT_CONVERSION_COMPRESSED
4122 POINT_CONVERSION_UNCOMPRESSED
4123 POINT_CONVERSION_HYBRID
4125 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4128 EC_GROUP_get0_seed()
4129 EC_GROUP_get_seed_len()
4130 This is used only for ASN1 purposes (so far).
4131 [Nils Larsch <nla@trustcenter.de>]
4133 *) Add 'field_type' member to EC_METHOD, which holds the NID
4134 of the appropriate field type OID. The new function
4135 EC_METHOD_get_field_type() returns this value.
4136 [Nils Larsch <nla@trustcenter.de>]
4141 EC_POINT_point2hex()
4142 EC_POINT_hex2point()
4143 providing useful interfaces to EC_POINT_point2oct() and
4144 EC_POINT_oct2point().
4145 [Nils Larsch <nla@trustcenter.de>]
4147 *) Change internals of the EC library so that the functions
4148 EC_GROUP_set_generator()
4149 EC_GROUP_get_generator()
4150 EC_GROUP_get_order()
4151 EC_GROUP_get_cofactor()
4152 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4153 to methods, which would lead to unnecessary code duplication when
4154 adding different types of curves.
4155 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4157 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4158 arithmetic, and such that modified wNAFs are generated
4159 (which avoid length expansion in many cases).
4162 *) Add a function EC_GROUP_check_discriminant() (defined via
4163 EC_METHOD) that verifies that the curve discriminant is non-zero.
4165 Add a function EC_GROUP_check() that makes some sanity tests
4166 on a EC_GROUP, its generator and order. This includes
4167 EC_GROUP_check_discriminant().
4168 [Nils Larsch <nla@trustcenter.de>]
4170 *) Add ECDSA in new directory crypto/ecdsa/.
4172 Add applications 'openssl ecparam' and 'openssl ecdsa'
4173 (these are based on 'openssl dsaparam' and 'openssl dsa').
4175 ECDSA support is also included in various other files across the
4176 library. Most notably,
4177 - 'openssl req' now has a '-newkey ecdsa:file' option;
4178 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4179 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4180 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4181 them suitable for ECDSA where domain parameters must be
4182 extracted before the specific public key;
4183 - ECDSA engine support has been added.
4184 [Nils Larsch <nla@trustcenter.de>]
4186 *) Include some named elliptic curves, and add OIDs from X9.62,
4187 SECG, and WAP/WTLS. Each curve can be obtained from the new
4189 EC_GROUP_new_by_curve_name(),
4190 and the list of available named curves can be obtained with
4191 EC_get_builtin_curves().
4192 Also add a 'curve_name' member to EC_GROUP objects, which can be
4194 EC_GROUP_set_curve_name()
4195 EC_GROUP_get_curve_name()
4196 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4198 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4199 was actually never needed) and in BN_mul(). The removal in BN_mul()
4200 required a small change in bn_mul_part_recursive() and the addition
4201 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4202 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4203 bn_sub_words() and bn_add_words() except they take arrays with
4207 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4209 *) Cleanse PEM buffers before freeing them since they may contain
4211 [Benjamin Bennett <ben@psc.edu>]
4213 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4214 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4215 authentication-only ciphersuites.
4218 *) Since AES128 and AES256 share a single mask bit in the logic of
4219 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4220 kludge to work properly if AES128 is available and AES256 isn't.
4223 *) Expand security boundary to match 1.1.1 module.
4226 *) Remove redundant features: hash file source, editing of test vectors
4227 modify fipsld to use external fips_premain.c signature.
4230 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4231 run algorithm test programs.
4234 *) Make algorithm test programs more tolerant of whitespace.
4237 *) Have SSL/TLS server implementation tolerate "mismatched" record
4238 protocol version while receiving ClientHello even if the
4239 ClientHello is fragmented. (The server can't insist on the
4240 particular protocol version it has chosen before the ServerHello
4241 message has informed the client about his choice.)
4244 *) Load error codes if they are not already present instead of using a
4245 static variable. This allows them to be cleanly unloaded and reloaded.
4248 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4250 *) Introduce limits to prevent malicious keys being able to
4251 cause a denial of service. (CVE-2006-2940)
4252 [Steve Henson, Bodo Moeller]
4254 *) Fix ASN.1 parsing of certain invalid structures that can result
4255 in a denial of service. (CVE-2006-2937) [Steve Henson]
4257 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4258 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4260 *) Fix SSL client code which could crash if connecting to a
4261 malicious SSLv2 server. (CVE-2006-4343)
4262 [Tavis Ormandy and Will Drewry, Google Security Team]
4264 *) Change ciphersuite string processing so that an explicit
4265 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4266 will no longer include "AES128-SHA"), and any other similar
4267 ciphersuite (same bitmap) from *other* protocol versions (so that
4268 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4269 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4270 changes from 0.9.8b and 0.9.8d.
4273 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4275 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4276 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4278 *) Change the Unix randomness entropy gathering to use poll() when
4279 possible instead of select(), since the latter has some
4280 undesirable limitations.
4281 [Darryl Miles via Richard Levitte and Bodo Moeller]
4283 *) Disable rogue ciphersuites:
4285 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4286 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4287 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4289 The latter two were purportedly from
4290 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4293 Also deactive the remaining ciphersuites from
4294 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4295 unofficial, and the ID has long expired.
4298 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4299 dual-core machines) and other potential thread-safety issues.
4302 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4304 *) Adapt fipsld and the build system to link against the validated FIPS
4305 module in FIPS mode.
4308 *) Fixes for VC++ 2005 build under Windows.
4311 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4312 from a Windows bash shell such as MSYS. It is autodetected from the
4313 "config" script when run from a VC++ environment. Modify standard VC++
4314 build to use fipscanister.o from the GNU make build.
4317 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4319 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4320 The value now differs depending on if you build for FIPS or not.
4321 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4322 safely run with a non-FIPSed libcrypto, as it may crash because of
4323 the difference induced by this change.
4326 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4328 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4329 (part of SSL_OP_ALL). This option used to disable the
4330 countermeasure against man-in-the-middle protocol-version
4331 rollback in the SSL 2.0 server implementation, which is a bad
4332 idea. (CVE-2005-2969)
4334 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4335 for Information Security, National Institute of Advanced Industrial
4336 Science and Technology [AIST], Japan)]
4338 *) Minimal support for X9.31 signatures and PSS padding modes. This is
4339 mainly for FIPS compliance and not fully integrated at this stage.
4342 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
4343 the exponentiation using a fixed-length exponent. (Otherwise,
4344 the information leaked through timing could expose the secret key
4345 after many signatures; cf. Bleichenbacher's attack on DSA with
4349 *) Make a new fixed-window mod_exp implementation the default for
4350 RSA, DSA, and DH private-key operations so that the sequence of
4351 squares and multiplies and the memory access pattern are
4352 independent of the particular secret key. This will mitigate
4353 cache-timing and potential related attacks.
4355 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
4356 and this is automatically used by BN_mod_exp_mont() if the new flag
4357 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
4358 will use this BN flag for private exponents unless the flag
4359 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
4360 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
4362 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
4364 *) Change the client implementation for SSLv23_method() and
4365 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
4366 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
4367 (Previously, the SSL 2.0 backwards compatible Client Hello
4368 message format would be used even with SSL_OP_NO_SSLv2.)
4371 *) Add support for smime-type MIME parameter in S/MIME messages which some
4375 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
4376 a threadsafe manner. Modify rsa code to use new function and add calls
4377 to dsa and dh code (which had race conditions before).
4380 *) Include the fixed error library code in the C error file definitions
4381 instead of fixing them up at runtime. This keeps the error code
4382 structures constant.
4385 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
4387 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
4390 *) Fixes for newer kerberos headers. NB: the casts are needed because
4391 the 'length' field is signed on one version and unsigned on another
4392 with no (?) obvious way to tell the difference, without these VC++
4393 complains. Also the "definition" of FAR (blank) is no longer included
4394 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
4395 some needed definitions.
4398 *) Undo Cygwin change.
4401 *) Added support for proxy certificates according to RFC 3820.
4402 Because they may be a security thread to unaware applications,
4403 they must be explicitely allowed in run-time. See
4404 docs/HOWTO/proxy_certificates.txt for further information.
4407 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
4409 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
4410 server and client random values. Previously
4411 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
4412 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
4414 This change has negligible security impact because:
4416 1. Server and client random values still have 24 bytes of pseudo random
4419 2. Server and client random values are sent in the clear in the initial
4422 3. The master secret is derived using the premaster secret (48 bytes in
4423 size for static RSA ciphersuites) as well as client server and random
4426 The OpenSSL team would like to thank the UK NISCC for bringing this issue
4429 [Stephen Henson, reported by UK NISCC]
4431 *) Use Windows randomness collection on Cygwin.
4434 *) Fix hang in EGD/PRNGD query when communication socket is closed
4435 prematurely by EGD/PRNGD.
4436 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4438 *) Prompt for pass phrases when appropriate for PKCS12 input format.
4441 *) Back-port of selected performance improvements from development
4442 branch, as well as improved support for PowerPC platforms.
4445 *) Add lots of checks for memory allocation failure, error codes to indicate
4446 failure and freeing up memory if a failure occurs.
4447 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
4449 *) Add new -passin argument to dgst.
4452 *) Perform some character comparisons of different types in X509_NAME_cmp:
4453 this is needed for some certificates that reencode DNs into UTF8Strings
4454 (in violation of RFC3280) and can't or wont issue name rollover
4458 *) Make an explicit check during certificate validation to see that
4459 the CA setting in each certificate on the chain is correct. As a
4460 side effect always do the following basic checks on extensions,
4461 not just when there's an associated purpose to the check:
4463 - if there is an unhandled critical extension (unless the user
4464 has chosen to ignore this fault)
4465 - if the path length has been exceeded (if one is set at all)
4466 - that certain extensions fit the associated purpose (if one has
4470 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4472 *) Avoid a race condition when CRLs are checked in a multi threaded
4473 environment. This would happen due to the reordering of the revoked
4474 entries during signature checking and serial number lookup. Now the
4475 encoding is cached and the serial number sort performed under a lock.
4476 Add new STACK function sk_is_sorted().
4479 *) Add Delta CRL to the extension code.
4482 *) Various fixes to s3_pkt.c so alerts are sent properly.
4483 [David Holmes <d.holmes@f5.com>]
4485 *) Reduce the chances of duplicate issuer name and serial numbers (in
4486 violation of RFC3280) using the OpenSSL certificate creation utilities.
4487 This is done by creating a random 64 bit value for the initial serial
4488 number when a serial number file is created or when a self signed
4489 certificate is created using 'openssl req -x509'. The initial serial
4490 number file is created using 'openssl x509 -next_serial' in CA.pl
4491 rather than being initialized to 1.
4494 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4496 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4497 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4498 [Joe Orton, Steve Henson]
4500 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4502 [Joe Orton, Steve Henson]
4504 *) Make it possible to have multiple active certificates with the same
4505 subject in the CA index file. This is done only if the keyword
4506 'unique_subject' is set to 'no' in the main CA section (default
4507 if 'CA_default') of the configuration file. The value is saved
4508 with the database itself in a separate index attribute file,
4509 named like the index file with '.attr' appended to the name.
4512 *) X509 verify fixes. Disable broken certificate workarounds when
4513 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4514 keyUsage extension present. Don't accept CRLs with unhandled critical
4515 extensions: since verify currently doesn't process CRL extensions this
4516 rejects a CRL with *any* critical extensions. Add new verify error codes
4520 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4521 A clarification of RFC2560 will require the use of OCTET STRINGs and
4522 some implementations cannot handle the current raw format. Since OpenSSL
4523 copies and compares OCSP nonces as opaque blobs without any attempt at
4524 parsing them this should not create any compatibility issues.
4527 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4528 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4529 this HMAC (and other) operations are several times slower than OpenSSL
4533 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4534 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4536 *) Use the correct content when signing type "other".
4539 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4541 *) Fix various bugs revealed by running the NISCC test suite:
4543 Stop out of bounds reads in the ASN1 code when presented with
4544 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4546 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4548 If verify callback ignores invalid public key errors don't try to check
4549 certificate signature with the NULL public key.
4553 *) New -ignore_err option in ocsp application to stop the server
4554 exiting on the first error in a request.
4557 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4558 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4562 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4563 extra data after the compression methods not only for TLS 1.0
4564 but also for SSL 3.0 (as required by the specification).
4565 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4567 *) Change X509_certificate_type() to mark the key as exported/exportable
4568 when it's 512 *bits* long, not 512 bytes.
4571 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4572 blocks during encryption.
4575 *) Various fixes to base64 BIO and non blocking I/O. On write
4576 flushes were not handled properly if the BIO retried. On read
4577 data was not being buffered properly and had various logic bugs.
4578 This also affects blocking I/O when the data being decoded is a
4582 *) Various S/MIME bugfixes and compatibility changes:
4583 output correct application/pkcs7 MIME type if
4584 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4585 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4586 of files as .eml work). Correctly handle very long lines in MIME
4590 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4592 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4593 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4594 a protocol version number mismatch like a decryption error
4595 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4598 *) Turn on RSA blinding by default in the default implementation
4599 to avoid a timing attack. Applications that don't want it can call
4600 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4601 They would be ill-advised to do so in most cases.
4602 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4604 *) Change RSA blinding code so that it works when the PRNG is not
4605 seeded (in this case, the secret RSA exponent is abused as
4606 an unpredictable seed -- if it is not unpredictable, there
4607 is no point in blinding anyway). Make RSA blinding thread-safe
4608 by remembering the creator's thread ID in rsa->blinding and
4609 having all other threads use local one-time blinding factors
4610 (this requires more computation than sharing rsa->blinding, but
4611 avoids excessive locking; and if an RSA object is not shared
4612 between threads, blinding will still be very fast).
4615 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4616 ENGINE as defaults for all supported algorithms irrespective of
4617 the 'flags' parameter. 'flags' is now honoured, so applications
4618 should make sure they are passing it correctly.
4621 *) Target "mingw" now allows native Windows code to be generated in
4622 the Cygwin environment as well as with the MinGW compiler.
4625 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4627 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4628 via timing by performing a MAC computation even if incorrect
4629 block cipher padding has been found. This is a countermeasure
4630 against active attacks where the attacker has to distinguish
4631 between bad padding and a MAC verification error. (CVE-2003-0078)
4633 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4634 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4635 Martin Vuagnoux (EPFL, Ilion)]
4637 *) Make the no-err option work as intended. The intention with no-err
4638 is not to have the whole error stack handling routines removed from
4639 libcrypto, it's only intended to remove all the function name and
4640 reason texts, thereby removing some of the footprint that may not
4641 be interesting if those errors aren't displayed anyway.
4643 NOTE: it's still possible for any application or module to have it's
4644 own set of error texts inserted. The routines are there, just not
4645 used by default when no-err is given.
4648 *) Add support for FreeBSD on IA64.
4649 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4651 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4652 Kerberos function mit_des_cbc_cksum(). Before this change,
4653 the value returned by DES_cbc_cksum() was like the one from
4654 mit_des_cbc_cksum(), except the bytes were swapped.
4655 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4657 *) Allow an application to disable the automatic SSL chain building.
4658 Before this a rather primitive chain build was always performed in
4659 ssl3_output_cert_chain(): an application had no way to send the
4660 correct chain if the automatic operation produced an incorrect result.
4662 Now the chain builder is disabled if either:
4664 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4666 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4668 The reasoning behind this is that an application would not want the
4669 auto chain building to take place if extra chain certificates are
4670 present and it might also want a means of sending no additional
4671 certificates (for example the chain has two certificates and the
4675 *) Add the possibility to build without the ENGINE framework.
4676 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4678 *) Under Win32 gmtime() can return NULL: check return value in
4679 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4682 *) DSA routines: under certain error conditions uninitialized BN objects
4683 could be freed. Solution: make sure initialization is performed early
4684 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4685 Nils Larsch <nla@trustcenter.de> via PR#459)
4688 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4689 checked on reconnect on the client side, therefore session resumption
4690 could still fail with a "ssl session id is different" error. This
4691 behaviour is masked when SSL_OP_ALL is used due to
4692 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4693 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4694 followup to PR #377.
4697 *) IA-32 assembler support enhancements: unified ELF targets, support
4698 for SCO/Caldera platforms, fix for Cygwin shared build.
4701 *) Add support for FreeBSD on sparc64. As a consequence, support for
4702 FreeBSD on non-x86 processors is separate from x86 processors on
4703 the config script, much like the NetBSD support.
4704 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4706 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4708 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4711 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4712 code (06) was taken as the first octet of the session ID and the last
4713 octet was ignored consequently. As a result SSLv2 client side session
4714 caching could not have worked due to the session ID mismatch between
4716 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4720 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4721 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4725 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4726 seems that in spite of existing for more than a year, many application
4727 author have done nothing to provide the necessary callbacks, which
4728 means that this particular engine will not work properly anywhere.
4729 This is a very unfortunate situation which forces us, in the name
4730 of usability, to give the hw_ncipher.c a static lock, which is part
4732 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4733 appear in 0.9.8 or later. We EXPECT application authors to have
4734 dealt properly with this when 0.9.8 is released (unless we actually
4735 make such changes in the libcrypto locking code that changes will
4736 have to be made anyway).
4739 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4740 octets have been read, EOF or an error occurs. Without this change
4741 some truncated ASN1 structures will not produce an error.
4744 *) Disable Heimdal support, since it hasn't been fully implemented.
4745 Still give the possibility to force the use of Heimdal, but with
4746 warnings and a request that patches get sent to openssl-dev.
4749 *) Add the VC-CE target, introduce the WINCE sysname, and add
4750 INSTALL.WCE and appropriate conditionals to make it build.
4751 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4753 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4754 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4755 edit numbers of the version.
4756 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4758 *) Introduce safe string copy and catenation functions
4759 (BUF_strlcpy() and BUF_strlcat()).
4760 [Ben Laurie (CHATS) and Richard Levitte]
4762 *) Avoid using fixed-size buffers for one-line DNs.
4763 [Ben Laurie (CHATS)]
4765 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4766 resizing buffers containing secrets, and use where appropriate.
4767 [Ben Laurie (CHATS)]
4769 *) Avoid using fixed size buffers for configuration file location.
4770 [Ben Laurie (CHATS)]
4772 *) Avoid filename truncation for various CA files.
4773 [Ben Laurie (CHATS)]
4775 *) Use sizeof in preference to magic numbers.
4776 [Ben Laurie (CHATS)]
4778 *) Avoid filename truncation in cert requests.
4779 [Ben Laurie (CHATS)]
4781 *) Add assertions to check for (supposedly impossible) buffer
4783 [Ben Laurie (CHATS)]
4785 *) Don't cache truncated DNS entries in the local cache (this could
4786 potentially lead to a spoofing attack).
4787 [Ben Laurie (CHATS)]
4789 *) Fix various buffers to be large enough for hex/decimal
4790 representations in a platform independent manner.
4791 [Ben Laurie (CHATS)]
4793 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4794 resizing buffers containing secrets, and use where appropriate.
4795 [Ben Laurie (CHATS)]
4797 *) Add BIO_indent() to avoid much slightly worrying code to do
4799 [Ben Laurie (CHATS)]
4801 *) Convert sprintf()/BIO_puts() to BIO_printf().
4802 [Ben Laurie (CHATS)]
4804 *) buffer_gets() could terminate with the buffer only half
4806 [Ben Laurie (CHATS)]
4808 *) Add assertions to prevent user-supplied crypto functions from
4809 overflowing internal buffers by having large block sizes, etc.
4810 [Ben Laurie (CHATS)]
4812 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4814 [Ben Laurie (CHATS)]
4816 *) Eliminate unused copy of key in RC4.
4817 [Ben Laurie (CHATS)]
4819 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4820 [Ben Laurie (CHATS)]
4822 *) Fix off-by-one error in EGD path.
4823 [Ben Laurie (CHATS)]
4825 *) If RANDFILE path is too long, ignore instead of truncating.
4826 [Ben Laurie (CHATS)]
4828 *) Eliminate unused and incorrectly sized X.509 structure
4830 [Ben Laurie (CHATS)]
4832 *) Eliminate unused and dangerous function knumber().
4833 [Ben Laurie (CHATS)]
4835 *) Eliminate unused and dangerous structure, KSSL_ERR.
4836 [Ben Laurie (CHATS)]
4838 *) Protect against overlong session ID context length in an encoded
4839 session object. Since these are local, this does not appear to be
4841 [Ben Laurie (CHATS)]
4843 *) Change from security patch (see 0.9.6e below) that did not affect
4844 the 0.9.6 release series:
4846 Remote buffer overflow in SSL3 protocol - an attacker could
4847 supply an oversized master key in Kerberos-enabled versions.
4849 [Ben Laurie (CHATS)]
4851 *) Change the SSL kerb5 codes to match RFC 2712.
4854 *) Make -nameopt work fully for req and add -reqopt switch.
4855 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4857 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4858 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4860 *) Make sure tests can be performed even if the corresponding algorithms
4861 have been removed entirely. This was also the last step to make
4862 OpenSSL compilable with DJGPP under all reasonable conditions.
4863 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4865 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4866 to allow version independent disabling of normally unselected ciphers,
4867 which may be activated as a side-effect of selecting a single cipher.
4869 (E.g., cipher list string "RSA" enables ciphersuites that are left
4870 out of "ALL" because they do not provide symmetric encryption.
4871 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4872 [Lutz Jaenicke, Bodo Moeller]
4874 *) Add appropriate support for separate platform-dependent build
4875 directories. The recommended way to make a platform-dependent
4876 build directory is the following (tested on Linux), maybe with
4879 # Place yourself outside of the OpenSSL source tree. In
4880 # this example, the environment variable OPENSSL_SOURCE
4881 # is assumed to contain the absolute OpenSSL source directory.
4882 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4883 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4884 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4885 mkdir -p `dirname $F`
4886 ln -s $OPENSSL_SOURCE/$F $F
4889 To be absolutely sure not to disturb the source tree, a "make clean"
4890 is a good thing. If it isn't successfull, don't worry about it,
4891 it probably means the source directory is very clean.
4894 *) Make sure any ENGINE control commands make local copies of string
4895 pointers passed to them whenever necessary. Otherwise it is possible
4896 the caller may have overwritten (or deallocated) the original string
4897 data when a later ENGINE operation tries to use the stored values.
4898 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4900 *) Improve diagnostics in file reading and command-line digests.
4901 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4903 *) Add AES modes CFB and OFB to the object database. Correct an
4904 error in AES-CFB decryption.
4907 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4908 allows existing EVP_CIPHER_CTX structures to be reused after
4909 calling EVP_*Final(). This behaviour is used by encryption
4910 BIOs and some applications. This has the side effect that
4911 applications must explicitly clean up cipher contexts with
4912 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4915 *) Check the values of dna and dnb in bn_mul_recursive before calling
4916 bn_mul_comba (a non zero value means the a or b arrays do not contain
4917 n2 elements) and fallback to bn_mul_normal if either is not zero.
4920 *) Fix escaping of non-ASCII characters when using the -subj option
4921 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4924 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4925 form for "surname", serialNumber has no short form.
4926 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4927 therefore remove "mail" short name for "internet 7".
4928 The OID for unique identifiers in X509 certificates is
4929 x500UniqueIdentifier, not uniqueIdentifier.
4930 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4933 *) Add an "init" command to the ENGINE config module and auto initialize
4934 ENGINEs. Without any "init" command the ENGINE will be initialized
4935 after all ctrl commands have been executed on it. If init=1 the
4936 ENGINE is initailized at that point (ctrls before that point are run
4937 on the uninitialized ENGINE and after on the initialized one). If
4938 init=0 then the ENGINE will not be iniatialized at all.
4941 *) Fix the 'app_verify_callback' interface so that the user-defined
4942 argument is actually passed to the callback: In the
4943 SSL_CTX_set_cert_verify_callback() prototype, the callback
4944 declaration has been changed from
4947 int (*cb)(X509_STORE_CTX *,void *);
4948 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4949 i=s->ctx->app_verify_callback(&ctx)
4950 has been changed into
4951 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4953 To update applications using SSL_CTX_set_cert_verify_callback(),
4954 a dummy argument can be added to their callback functions.
4955 [D. K. Smetters <smetters@parc.xerox.com>]
4957 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4958 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4960 *) Add and OPENSSL_LOAD_CONF define which will cause
4961 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4962 This allows older applications to transparently support certain
4963 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4964 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4965 load the config file and OPENSSL_add_all_algorithms_conf() which will
4966 always load it have also been added.
4969 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4970 Adjust NIDs and EVP layer.
4971 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4973 *) Config modules support in openssl utility.
4975 Most commands now load modules from the config file,
4976 though in a few (such as version) this isn't done
4977 because it couldn't be used for anything.
4979 In the case of ca and req the config file used is
4980 the same as the utility itself: that is the -config
4981 command line option can be used to specify an
4985 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4986 use "openssl_conf" if filename is NULL use default openssl config file.
4989 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4990 config section name. Add a new flag to tolerate a missing config file
4991 and move code to CONF_modules_load_file().
4994 *) Support for crypto accelerator cards from Accelerated Encryption
4995 Processing, www.aep.ie. (Use engine 'aep')
4996 The support was copied from 0.9.6c [engine] and adapted/corrected
4997 to work with the new engine framework.
4998 [AEP Inc. and Richard Levitte]
5000 *) Support for SureWare crypto accelerator cards from Baltimore
5001 Technologies. (Use engine 'sureware')
5002 The support was copied from 0.9.6c [engine] and adapted
5003 to work with the new engine framework.
5006 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5007 make the newer ENGINE framework commands for the CHIL engine work.
5008 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5010 *) Make it possible to produce shared libraries on ReliantUNIX.
5011 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5013 *) Add the configuration target debug-linux-ppro.
5014 Make 'openssl rsa' use the general key loading routines
5015 implemented in apps.c, and make those routines able to
5016 handle the key format FORMAT_NETSCAPE and the variant
5018 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5020 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5021 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5023 *) Add -keyform to rsautl, and document -engine.
5024 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5026 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5027 BIO_R_NO_SUCH_FILE error code rather than the generic
5028 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5031 *) Add new functions
5033 ERR_peek_last_error_line
5034 ERR_peek_last_error_line_data.
5035 These are similar to
5038 ERR_peek_error_line_data,
5039 but report on the latest error recorded rather than the first one
5040 still in the error queue.
5041 [Ben Laurie, Bodo Moeller]
5043 *) default_algorithms option in ENGINE config module. This allows things
5045 default_algorithms = ALL
5046 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5049 *) Preliminary ENGINE config module.
5052 *) New experimental application configuration code.
5055 *) Change the AES code to follow the same name structure as all other
5056 symmetric ciphers, and behave the same way. Move everything to
5057 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5058 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5060 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5061 [Ben Laurie and Theo de Raadt]
5063 *) Add option to output public keys in req command.
5064 [Massimiliano Pala madwolf@openca.org]
5066 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5067 (up to about 10% better than before for P-192 and P-224).
5070 *) New functions/macros
5072 SSL_CTX_set_msg_callback(ctx, cb)
5073 SSL_CTX_set_msg_callback_arg(ctx, arg)
5074 SSL_set_msg_callback(ssl, cb)
5075 SSL_set_msg_callback_arg(ssl, arg)
5077 to request calling a callback function
5079 void cb(int write_p, int version, int content_type,
5080 const void *buf, size_t len, SSL *ssl, void *arg)
5082 whenever a protocol message has been completely received
5083 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5084 protocol version according to which the SSL library interprets
5085 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5086 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5087 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5088 specification (change_cipher_spec(20), alert(21), handshake(22)).
5089 'buf' and 'len' point to the actual message, 'ssl' to the
5090 SSL object, and 'arg' is the application-defined value set by
5091 SSL[_CTX]_set_msg_callback_arg().
5093 'openssl s_client' and 'openssl s_server' have new '-msg' options
5094 to enable a callback that displays all protocol messages.
5097 *) Change the shared library support so shared libraries are built as
5098 soon as the corresponding static library is finished, and thereby get
5099 openssl and the test programs linked against the shared library.
5100 This still only happens when the keyword "shard" has been given to
5101 the configuration scripts.
5103 NOTE: shared library support is still an experimental thing, and
5104 backward binary compatibility is still not guaranteed.
5105 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5107 *) Add support for Subject Information Access extension.
5108 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5110 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5111 additional bytes when new memory had to be allocated, not just
5112 when reusing an existing buffer.
5115 *) New command line and configuration option 'utf8' for the req command.
5116 This allows field values to be specified as UTF8 strings.
5119 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5120 runs for the former and machine-readable output for the latter.
5123 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5124 of the e-mail address in the DN (i.e., it will go into a certificate
5125 extension only). The new configuration file option 'email_in_dn = no'
5126 has the same effect.
5127 [Massimiliano Pala madwolf@openca.org]
5129 *) Change all functions with names starting with des_ to be starting
5130 with DES_ instead. Add wrappers that are compatible with libdes,
5131 but are named _ossl_old_des_*. Finally, add macros that map the
5132 des_* symbols to the corresponding _ossl_old_des_* if libdes
5133 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5134 desired, the des_* symbols will be mapped to DES_*, with one
5137 Since we provide two compatibility mappings, the user needs to
5138 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5139 compatibility is desired. The default (i.e., when that macro
5140 isn't defined) is OpenSSL 0.9.6c compatibility.
5142 There are also macros that enable and disable the support of old
5143 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5144 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5145 are defined, the default will apply: to support the old des routines.
5147 In either case, one must include openssl/des.h to get the correct
5148 definitions. Do not try to just include openssl/des_old.h, that
5151 NOTE: This is a major break of an old API into a new one. Software
5152 authors are encouraged to switch to the DES_ style functions. Some
5153 time in the future, des_old.h and the libdes compatibility functions
5154 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5155 default), and then completely removed.
5158 *) Test for certificates which contain unsupported critical extensions.
5159 If such a certificate is found during a verify operation it is
5160 rejected by default: this behaviour can be overridden by either
5161 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5162 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5163 X509_supported_extension() has also been added which returns 1 if a
5164 particular extension is supported.
5167 *) Modify the behaviour of EVP cipher functions in similar way to digests
5168 to retain compatibility with existing code.
5171 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5172 compatibility with existing code. In particular the 'ctx' parameter does
5173 not have to be to be initialized before the call to EVP_DigestInit() and
5174 it is tidied up after a call to EVP_DigestFinal(). New function
5175 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5176 EVP_MD_CTX_copy() changed to not require the destination to be
5177 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5178 requires the destination to be valid.
5180 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5181 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5184 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5185 so that complete 'Handshake' protocol structures are kept in memory
5186 instead of overwriting 'msg_type' and 'length' with 'body' data.
5189 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5190 [Massimo Santin via Richard Levitte]
5192 *) Major restructuring to the underlying ENGINE code. This includes
5193 reduction of linker bloat, separation of pure "ENGINE" manipulation
5194 (initialisation, etc) from functionality dealing with implementations
5195 of specific crypto iterfaces. This change also introduces integrated
5196 support for symmetric ciphers and digest implementations - so ENGINEs
5197 can now accelerate these by providing EVP_CIPHER and EVP_MD
5198 implementations of their own. This is detailed in crypto/engine/README
5199 as it couldn't be adequately described here. However, there are a few
5200 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5201 were changed in the original introduction of ENGINE code have now
5202 reverted back - the hooking from this code to ENGINE is now a good
5203 deal more passive and at run-time, operations deal directly with
5204 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5205 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5206 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5207 they were not being used by the framework as there is no concept of a
5208 BIGNUM_METHOD and they could not be generalised to the new
5209 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5210 ENGINE_cpy() has been removed as it cannot be consistently defined in
5214 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5217 *) Change mkdef.pl to sort symbols that get the same entry number,
5218 and make sure the automatically generated functions ERR_load_*
5219 become part of libeay.num as well.
5222 *) New function SSL_renegotiate_pending(). This returns true once
5223 renegotiation has been requested (either SSL_renegotiate() call
5224 or HelloRequest/ClientHello received from the peer) and becomes
5225 false once a handshake has been completed.
5226 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5227 sends a HelloRequest, but does not ensure that a handshake takes
5228 place. SSL_renegotiate_pending() is useful for checking if the
5229 client has followed the request.)
5232 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5233 By default, clients may request session resumption even during
5234 renegotiation (if session ID contexts permit); with this option,
5235 session resumption is possible only in the first handshake.
5237 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5238 more bits available for options that should not be part of
5239 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5242 *) Add some demos for certificate and certificate request creation.
5245 *) Make maximum certificate chain size accepted from the peer application
5246 settable (SSL*_get/set_max_cert_list()), as proposed by
5247 "Douglas E. Engert" <deengert@anl.gov>.
5250 *) Add support for shared libraries for Unixware-7
5251 (Boyd Lynn Gerber <gerberb@zenez.com>).
5254 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5255 be done prior to destruction. Use this to unload error strings from
5256 ENGINEs that load their own error strings. NB: This adds two new API
5257 functions to "get" and "set" this destroy handler in an ENGINE.
5260 *) Alter all existing ENGINE implementations (except "openssl" and
5261 "openbsd") to dynamically instantiate their own error strings. This
5262 makes them more flexible to be built both as statically-linked ENGINEs
5263 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5264 Also, add stub code to each that makes building them as self-contained
5265 shared-libraries easier (see README.ENGINE).
5268 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5269 implementations into applications that are completely implemented in
5270 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5271 commands that can be used to configure what shared-library to load and
5272 to control aspects of the way it is handled. Also, made an update to
5273 the README.ENGINE file that brings its information up-to-date and
5274 provides some information and instructions on the "dynamic" ENGINE
5275 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5278 *) Make it possible to unload ranges of ERR strings with a new
5279 "ERR_unload_strings" function.
5282 *) Add a copy() function to EVP_MD.
5285 *) Make EVP_MD routines take a context pointer instead of just the
5286 md_data void pointer.
5289 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5290 that the digest can only process a single chunk of data
5291 (typically because it is provided by a piece of
5292 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5293 is only going to provide a single chunk of data, and hence the
5294 framework needn't accumulate the data for oneshot drivers.
5297 *) As with "ERR", make it possible to replace the underlying "ex_data"
5298 functions. This change also alters the storage and management of global
5299 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5300 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5301 index counters. The API functions that use this state have been changed
5302 to take a "class_index" rather than pointers to the class's local STACK
5303 and counter, and there is now an API function to dynamically create new
5304 classes. This centralisation allows us to (a) plug a lot of the
5305 thread-safety problems that existed, and (b) makes it possible to clean
5306 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5307 such data would previously have always leaked in application code and
5308 workarounds were in place to make the memory debugging turn a blind eye
5309 to it. Application code that doesn't use this new function will still
5310 leak as before, but their memory debugging output will announce it now
5311 rather than letting it slide.
5313 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5314 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5315 has a return value to indicate success or failure.
5318 *) Make it possible to replace the underlying "ERR" functions such that the
5319 global state (2 LHASH tables and 2 locks) is only used by the "default"
5320 implementation. This change also adds two functions to "get" and "set"
5321 the implementation prior to it being automatically set the first time
5322 any other ERR function takes place. Ie. an application can call "get",
5323 pass the return value to a module it has just loaded, and that module
5324 can call its own "set" function using that value. This means the
5325 module's "ERR" operations will use (and modify) the error state in the
5326 application and not in its own statically linked copy of OpenSSL code.
5329 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5330 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5331 the operation, and provides a more encapsulated way for external code
5332 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5333 to use these functions rather than manually incrementing the counts.
5335 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5338 *) Add EVP test program.
5341 *) Add symmetric cipher support to ENGINE. Expect the API to change!
5344 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
5345 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
5346 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
5347 These allow a CRL to be built without having to access X509_CRL fields
5348 directly. Modify 'ca' application to use new functions.
5351 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5352 bug workarounds. Rollback attack detection is a security feature.
5353 The problem will only arise on OpenSSL servers when TLSv1 is not
5354 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
5355 Software authors not wanting to support TLSv1 will have special reasons
5356 for their choice and can explicitly enable this option.
5357 [Bodo Moeller, Lutz Jaenicke]
5359 *) Rationalise EVP so it can be extended: don't include a union of
5360 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
5361 (similar to those existing for EVP_CIPHER_CTX).
5366 EVP_MD_CTX_init(&md); /* new function call */
5367 EVP_DigestInit(&md, EVP_sha1());
5368 EVP_DigestUpdate(&md, in, len);
5369 EVP_DigestFinal(&md, out, NULL);
5370 EVP_MD_CTX_cleanup(&md); /* new function call */
5374 *) Make DES key schedule conform to the usual scheme, as well as
5375 correcting its structure. This means that calls to DES functions
5376 now have to pass a pointer to a des_key_schedule instead of a
5377 plain des_key_schedule (which was actually always a pointer
5380 des_key_schedule ks;
5382 des_set_key_checked(..., &ks);
5383 des_ncbc_encrypt(..., &ks, ...);
5385 (Note that a later change renames 'des_...' into 'DES_...'.)
5388 *) Initial reduction of linker bloat: the use of some functions, such as
5389 PEM causes large amounts of unused functions to be linked in due to
5390 poor organisation. For example pem_all.c contains every PEM function
5391 which has a knock on effect of linking in large amounts of (unused)
5392 ASN1 code. Grouping together similar functions and splitting unrelated
5393 functions prevents this.
5396 *) Cleanup of EVP macros.
5399 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5400 correct _ecb suffix.
5403 *) Add initial OCSP responder support to ocsp application. The
5404 revocation information is handled using the text based index
5405 use by the ca application. The responder can either handle
5406 requests generated internally, supplied in files (for example
5407 via a CGI script) or using an internal minimal server.
5410 *) Add configuration choices to get zlib compression for TLS.
5413 *) Changes to Kerberos SSL for RFC 2712 compliance:
5414 1. Implemented real KerberosWrapper, instead of just using
5415 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
5416 2. Implemented optional authenticator field of KerberosWrapper.
5418 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
5419 and authenticator structs; see crypto/krb5/.
5421 Generalized Kerberos calls to support multiple Kerberos libraries.
5422 [Vern Staats <staatsvr@asc.hpc.mil>,
5423 Jeffrey Altman <jaltman@columbia.edu>
5424 via Richard Levitte]
5426 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5427 already does with RSA. testdsa.h now has 'priv_key/pub_key'
5428 values for each of the key sizes rather than having just
5429 parameters (and 'speed' generating keys each time).
5432 *) Speed up EVP routines.
5435 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
5436 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
5437 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
5438 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
5440 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
5441 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
5442 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
5445 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
5447 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
5450 *) Added the OS2-EMX target.
5451 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5453 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5454 to support NCONF routines in extension code. New function CONF_set_nconf()
5455 to allow functions which take an NCONF to also handle the old LHASH
5456 structure: this means that the old CONF compatible routines can be
5457 retained (in particular wrt extensions) without having to duplicate the
5458 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5461 *) Enhance the general user interface with mechanisms for inner control
5462 and with possibilities to have yes/no kind of prompts.
5465 *) Change all calls to low level digest routines in the library and
5466 applications to use EVP. Add missing calls to HMAC_cleanup() and
5467 don't assume HMAC_CTX can be copied using memcpy().
5468 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5470 *) Add the possibility to control engines through control names but with
5471 arbitrary arguments instead of just a string.
5472 Change the key loaders to take a UI_METHOD instead of a callback
5473 function pointer. NOTE: this breaks binary compatibility with earlier
5474 versions of OpenSSL [engine].
5475 Adapt the nCipher code for these new conditions and add a card insertion
5479 *) Enhance the general user interface with mechanisms to better support
5480 dialog box interfaces, application-defined prompts, the possibility
5481 to use defaults (for example default passwords from somewhere else)
5482 and interrupts/cancellations.
5485 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5486 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5489 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5490 tidy up some unnecessarily weird code in 'sk_new()').
5491 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5493 *) Change the key loading routines for ENGINEs to use the same kind
5494 callback (pem_password_cb) as all other routines that need this
5498 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5499 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5500 than this minimum value is recommended.
5503 *) New random seeder for OpenVMS, using the system process statistics
5504 that are easily reachable.
5507 *) Windows apparently can't transparently handle global
5508 variables defined in DLLs. Initialisations such as:
5510 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5512 wont compile. This is used by the any applications that need to
5513 declare their own ASN1 modules. This was fixed by adding the option
5514 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5515 needed for static libraries under Win32.
5518 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5519 setting of purpose and trust fields. New X509_STORE trust and
5520 purpose functions and tidy up setting in other SSL functions.
5523 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5524 structure. These are inherited by X509_STORE_CTX when it is
5525 initialised. This allows various defaults to be set in the
5526 X509_STORE structure (such as flags for CRL checking and custom
5527 purpose or trust settings) for functions which only use X509_STORE_CTX
5528 internally such as S/MIME.
5530 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5531 trust settings if they are not set in X509_STORE. This allows X509_STORE
5532 purposes and trust (in S/MIME for example) to override any set by default.
5534 Add command line options for CRL checking to smime, s_client and s_server
5538 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5539 are set then the CRL is looked up in the X509_STORE structure and
5540 its validity and signature checked, then if the certificate is found
5541 in the CRL the verify fails with a revoked error.
5543 Various new CRL related callbacks added to X509_STORE_CTX structure.
5545 Command line options added to 'verify' application to support this.
5547 This needs some additional work, such as being able to handle multiple
5548 CRLs with different times, extension based lookup (rather than just
5549 by subject name) and ultimately more complete V2 CRL extension
5553 *) Add a general user interface API (crypto/ui/). This is designed
5554 to replace things like des_read_password and friends (backward
5555 compatibility functions using this new API are provided).
5556 The purpose is to remove prompting functions from the DES code
5557 section as well as provide for prompting through dialog boxes in
5558 a window system and the like.
5561 *) Add "ex_data" support to ENGINE so implementations can add state at a
5562 per-structure level rather than having to store it globally.
5565 *) Make it possible for ENGINE structures to be copied when retrieved by
5566 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5567 This causes the "original" ENGINE structure to act like a template,
5568 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5569 operational state can be localised to each ENGINE structure, despite the
5570 fact they all share the same "methods". New ENGINE structures returned in
5571 this case have no functional references and the return value is the single
5572 structural reference. This matches the single structural reference returned
5573 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5577 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5578 needs to match any other type at all we need to manually clear the
5582 *) Changes to the "openssl engine" utility to include;
5583 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5584 about an ENGINE's available control commands.
5585 - executing control commands from command line arguments using the
5586 '-pre' and '-post' switches. '-post' is only used if '-t' is
5587 specified and the ENGINE is successfully initialised. The syntax for
5588 the individual commands are colon-separated, for example;
5589 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5592 *) New dynamic control command support for ENGINEs. ENGINEs can now
5593 declare their own commands (numbers), names (strings), descriptions,
5594 and input types for run-time discovery by calling applications. A
5595 subset of these commands are implicitly classed as "executable"
5596 depending on their input type, and only these can be invoked through
5597 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5598 can be based on user input, config files, etc). The distinction is
5599 that "executable" commands cannot return anything other than a boolean
5600 result and can only support numeric or string input, whereas some
5601 discoverable commands may only be for direct use through
5602 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5603 pointers, or other custom uses. The "executable" commands are to
5604 support parameterisations of ENGINE behaviour that can be
5605 unambiguously defined by ENGINEs and used consistently across any
5606 OpenSSL-based application. Commands have been added to all the
5607 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5608 control over shared-library paths without source code alterations.
5611 *) Changed all ENGINE implementations to dynamically allocate their
5612 ENGINEs rather than declaring them statically. Apart from this being
5613 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5614 this also allows the implementations to compile without using the
5615 internal engine_int.h header.
5618 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5619 'const' value. Any code that should be able to modify a RAND_METHOD
5620 should already have non-const pointers to it (ie. they should only
5621 modify their own ones).
5624 *) Made a variety of little tweaks to the ENGINE code.
5625 - "atalla" and "ubsec" string definitions were moved from header files
5626 to C code. "nuron" string definitions were placed in variables
5627 rather than hard-coded - allowing parameterisation of these values
5628 later on via ctrl() commands.
5629 - Removed unused "#if 0"'d code.
5630 - Fixed engine list iteration code so it uses ENGINE_free() to release
5631 structural references.
5632 - Constified the RAND_METHOD element of ENGINE structures.
5633 - Constified various get/set functions as appropriate and added
5634 missing functions (including a catch-all ENGINE_cpy that duplicates
5635 all ENGINE values onto a new ENGINE except reference counts/state).
5636 - Removed NULL parameter checks in get/set functions. Setting a method
5637 or function to NULL is a way of cancelling out a previously set
5638 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5639 and doesn't justify the extra error symbols and code.
5640 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5641 flags from engine_int.h to engine.h.
5642 - Changed prototypes for ENGINE handler functions (init(), finish(),
5643 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5646 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5647 to the algorithm using long division. The binary algorithm can be
5648 used only if the modulus is odd. On 32-bit systems, it is faster
5649 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5650 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5651 up to 450 bits. In 64-bit environments, the binary algorithm
5652 appears to be advantageous for much longer moduli; here we use it
5653 for moduli up to 2048 bits.
5656 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5657 could not support the combine flag in choice fields.
5660 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5661 extensions from a certificate request to the certificate.
5664 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5665 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5666 file: this allows the display of the certificate about to be
5667 signed to be customised, to allow certain fields to be included
5668 or excluded and extension details. The old system didn't display
5669 multicharacter strings properly, omitted fields not in the policy
5670 and couldn't display additional details such as extensions.
5673 *) Function EC_POINTs_mul for multiple scalar multiplication
5674 of an arbitrary number of elliptic curve points
5675 \sum scalars[i]*points[i],
5676 optionally including the generator defined for the EC_GROUP:
5677 scalar*generator + \sum scalars[i]*points[i].
5679 EC_POINT_mul is a simple wrapper function for the typical case
5680 that the point list has just one item (besides the optional
5684 *) First EC_METHODs for curves over GF(p):
5686 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5687 operations and provides various method functions that can also
5688 operate with faster implementations of modular arithmetic.
5690 EC_GFp_mont_method() reuses most functions that are part of
5691 EC_GFp_simple_method, but uses Montgomery arithmetic.
5693 [Bodo Moeller; point addition and point doubling
5694 implementation directly derived from source code provided by
5695 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5697 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5698 crypto/ec/ec_lib.c):
5700 Curves are EC_GROUP objects (with an optional group generator)
5701 based on EC_METHODs that are built into the library.
5703 Points are EC_POINT objects based on EC_GROUP objects.
5705 Most of the framework would be able to handle curves over arbitrary
5706 finite fields, but as there are no obvious types for fields other
5707 than GF(p), some functions are limited to that for now.
5710 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5711 that the file contains a complete HTTP response.
5714 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5715 change the def and num file printf format specifier from "%-40sXXX"
5716 to "%-39s XXX". The latter will always guarantee a space after the
5717 field while the former will cause them to run together if the field
5718 is 40 of more characters long.
5721 *) Constify the cipher and digest 'method' functions and structures
5722 and modify related functions to take constant EVP_MD and EVP_CIPHER
5726 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5727 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5730 *) Modify EVP_Digest*() routines so they now return values. Although the
5731 internal software routines can never fail additional hardware versions
5735 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5737 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5738 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5741 ERR_R_NESTED_ASN1_ERROR
5743 ERR_R_MISSING_ASN1_EOS
5744 were 4 .. 9, conflicting with
5745 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5747 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5748 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5750 Add new error code 'ERR_R_INTERNAL_ERROR'.
5753 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5757 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5758 sets the subject name for a new request or supersedes the
5759 subject name in a given request. Formats that can be parsed are
5760 'CN=Some Name, OU=myOU, C=IT'
5762 'CN=Some Name/OU=myOU/C=IT'.
5764 Add options '-batch' and '-verbose' to 'openssl req'.
5765 [Massimiliano Pala <madwolf@hackmasters.net>]
5767 *) Introduce the possibility to access global variables through
5768 functions on platform were that's the best way to handle exporting
5769 global variables in shared libraries. To enable this functionality,
5770 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5771 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5772 is normally done by Configure or something similar).
5774 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5775 in the source file (foo.c) like this:
5777 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5778 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5780 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5781 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5783 OPENSSL_DECLARE_GLOBAL(int,foo);
5784 #define foo OPENSSL_GLOBAL_REF(foo)
5785 OPENSSL_DECLARE_GLOBAL(double,bar);
5786 #define bar OPENSSL_GLOBAL_REF(bar)
5788 The #defines are very important, and therefore so is including the
5789 header file everywhere where the defined globals are used.
5791 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5792 of ASN.1 items, but that structure is a bit different.
5794 The largest change is in util/mkdef.pl which has been enhanced with
5795 better and easier to understand logic to choose which symbols should
5796 go into the Windows .def files as well as a number of fixes and code
5797 cleanup (among others, algorithm keywords are now sorted
5798 lexicographically to avoid constant rewrites).
5801 *) In BN_div() keep a copy of the sign of 'num' before writing the
5802 result to 'rm' because if rm==num the value will be overwritten
5803 and produce the wrong result if 'num' is negative: this caused
5804 problems with BN_mod() and BN_nnmod().
5807 *) Function OCSP_request_verify(). This checks the signature on an
5808 OCSP request and verifies the signer certificate. The signer
5809 certificate is just checked for a generic purpose and OCSP request
5813 *) Add OCSP_check_validity() function to check the validity of OCSP
5814 responses. OCSP responses are prepared in real time and may only
5815 be a few seconds old. Simply checking that the current time lies
5816 between thisUpdate and nextUpdate max reject otherwise valid responses
5817 caused by either OCSP responder or client clock inaccuracy. Instead
5818 we allow thisUpdate and nextUpdate to fall within a certain period of
5819 the current time. The age of the response can also optionally be
5820 checked. Two new options -validity_period and -status_age added to
5824 *) If signature or public key algorithm is unrecognized print out its
5825 OID rather that just UNKNOWN.
5828 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5829 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5830 ID to be generated from the issuer certificate alone which can then be
5831 passed to OCSP_id_issuer_cmp().
5834 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5835 ASN1 modules to export functions returning ASN1_ITEM pointers
5836 instead of the ASN1_ITEM structures themselves. This adds several
5837 new macros which allow the underlying ASN1 function/structure to
5838 be accessed transparently. As a result code should not use ASN1_ITEM
5839 references directly (such as &X509_it) but instead use the relevant
5840 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5841 use of the new ASN1 code on platforms where exporting structures
5842 is problematical (for example in shared libraries) but exporting
5843 functions returning pointers to structures is not.
5846 *) Add support for overriding the generation of SSL/TLS session IDs.
5847 These callbacks can be registered either in an SSL_CTX or per SSL.
5848 The purpose of this is to allow applications to control, if they wish,
5849 the arbitrary values chosen for use as session IDs, particularly as it
5850 can be useful for session caching in multiple-server environments. A
5851 command-line switch for testing this (and any client code that wishes
5852 to use such a feature) has been added to "s_server".
5853 [Geoff Thorpe, Lutz Jaenicke]
5855 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5856 of the form '#if defined(...) || defined(...) || ...' and
5857 '#if !defined(...) && !defined(...) && ...'. This also avoids
5858 the growing number of special cases it was previously handling.
5861 *) Make all configuration macros available for application by making
5862 sure they are available in opensslconf.h, by giving them names starting
5863 with "OPENSSL_" to avoid conflicts with other packages and by making
5864 sure e_os2.h will cover all platform-specific cases together with
5866 Additionally, it is now possible to define configuration/platform-
5867 specific names (called "system identities"). In the C code, these
5868 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5869 macro with the name beginning with "OPENSSL_SYS_", which is determined
5870 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5874 *) New option -set_serial to 'req' and 'x509' this allows the serial
5875 number to use to be specified on the command line. Previously self
5876 signed certificates were hard coded with serial number 0 and the
5877 CA options of 'x509' had to use a serial number in a file which was
5881 *) New options to 'ca' utility to support V2 CRL entry extensions.
5882 Currently CRL reason, invalidity date and hold instruction are
5883 supported. Add new CRL extensions to V3 code and some new objects.
5886 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5887 disable standard block padding (aka PKCS#5 padding) in the EVP
5888 API, which was previously mandatory. This means that the data is
5889 not padded in any way and so the total length much be a multiple
5890 of the block size, otherwise an error occurs.
5893 *) Initial (incomplete) OCSP SSL support.
5896 *) New function OCSP_parse_url(). This splits up a URL into its host,
5897 port and path components: primarily to parse OCSP URLs. New -url
5898 option to ocsp utility.
5901 *) New nonce behavior. The return value of OCSP_check_nonce() now
5902 reflects the various checks performed. Applications can decide
5903 whether to tolerate certain situations such as an absent nonce
5904 in a response when one was present in a request: the ocsp application
5905 just prints out a warning. New function OCSP_add1_basic_nonce()
5906 this is to allow responders to include a nonce in a response even if
5907 the request is nonce-less.
5910 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5911 skipped when using openssl x509 multiple times on a single input file,
5912 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5915 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5916 set string type: to handle setting ASN1_TIME structures. Fix ca
5917 utility to correctly initialize revocation date of CRLs.
5920 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5921 the clients preferred ciphersuites and rather use its own preferences.
5922 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5923 Internet Explorer by ensuring unchanged hash method during stepup.
5924 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5927 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5928 to aes and add a new 'exist' option to print out symbols that don't
5932 *) Additional options to ocsp utility to allow flags to be set and
5933 additional certificates supplied.
5936 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5937 OCSP client a number of certificate to only verify the response
5941 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5942 handle the new API. Currently only ECB, CBC modes supported. Add new
5945 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5946 Encryption Standard (AES) Ciphersuites for Transport Layer
5947 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5948 not enabled by default and were not part of the "ALL" ciphersuite
5949 alias because they were not yet official; they could be
5950 explicitly requested by specifying the "AESdraft" ciphersuite
5951 group alias. In the final release of OpenSSL 0.9.7, the group
5952 alias is called "AES" and is part of "ALL".)
5953 [Ben Laurie, Steve Henson, Bodo Moeller]
5955 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5956 request to response.
5959 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5960 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5961 extract information from a certificate request. OCSP_response_create()
5962 creates a response and optionally adds a basic response structure.
5963 OCSP_basic_add1_status() adds a complete single response to a basic
5964 response and returns the OCSP_SINGLERESP structure just added (to allow
5965 extensions to be included for example). OCSP_basic_add1_cert() adds a
5966 certificate to a basic response and OCSP_basic_sign() signs a basic
5967 response with various flags. New helper functions ASN1_TIME_check()
5968 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5969 (converts ASN1_TIME to GeneralizedTime).
5972 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5973 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5974 structure from a certificate. X509_pubkey_digest() digests the public_key
5975 contents: this is used in various key identifiers.
5978 *) Make sk_sort() tolerate a NULL argument.
5979 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5981 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5982 passed by the function are trusted implicitly. If any of them signed the
5983 response then it is assumed to be valid and is not verified.
5986 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5987 to data. This was previously part of the PKCS7 ASN1 code. This
5988 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5989 [Steve Henson, reported by Kenneth R. Robinette
5990 <support@securenetterm.com>]
5992 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5993 routines: without these tracing memory leaks is very painful.
5994 Fix leaks in PKCS12 and PKCS7 routines.
5997 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5998 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5999 effectively meant GeneralizedTime would never be used. Now it
6000 is initialised to -1 but X509_time_adj() now has to check the value
6001 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6002 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6003 [Steve Henson, reported by Kenneth R. Robinette
6004 <support@securenetterm.com>]
6006 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6007 result in a zero length in the ASN1_INTEGER structure which was
6008 not consistent with the structure when d2i_ASN1_INTEGER() was used
6009 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6010 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6011 where it did not print out a minus for negative ASN1_INTEGER.
6014 *) Add summary printout to ocsp utility. The various functions which
6015 convert status values to strings have been renamed to:
6016 OCSP_response_status_str(), OCSP_cert_status_str() and
6017 OCSP_crl_reason_str() and are no longer static. New options
6018 to verify nonce values and to disable verification. OCSP response
6019 printout format cleaned up.
6022 *) Add additional OCSP certificate checks. These are those specified
6023 in RFC2560. This consists of two separate checks: the CA of the
6024 certificate being checked must either be the OCSP signer certificate
6025 or the issuer of the OCSP signer certificate. In the latter case the
6026 OCSP signer certificate must contain the OCSP signing extended key
6027 usage. This check is performed by attempting to match the OCSP
6028 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6029 in the OCSP_CERTID structures of the response.
6032 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6033 and related routines. This uses the standard OpenSSL certificate
6034 verify routines to perform initial checks (just CA validity) and
6035 to obtain the certificate chain. Then additional checks will be
6036 performed on the chain. Currently the root CA is checked to see
6037 if it is explicitly trusted for OCSP signing. This is used to set
6038 a root CA as a global signing root: that is any certificate that
6039 chains to that CA is an acceptable OCSP signing certificate.
6042 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6043 extensions from a separate configuration file.
6044 As when reading extensions from the main configuration file,
6045 the '-extensions ...' option may be used for specifying the
6047 [Massimiliano Pala <madwolf@comune.modena.it>]
6049 *) New OCSP utility. Allows OCSP requests to be generated or
6050 read. The request can be sent to a responder and the output
6051 parsed, outputed or printed in text form. Not complete yet:
6052 still needs to check the OCSP response validity.
6055 *) New subcommands for 'openssl ca':
6056 'openssl ca -status <serial>' prints the status of the cert with
6057 the given serial number (according to the index file).
6058 'openssl ca -updatedb' updates the expiry status of certificates
6060 [Massimiliano Pala <madwolf@comune.modena.it>]
6062 *) New '-newreq-nodes' command option to CA.pl. This is like
6063 '-newreq', but calls 'openssl req' with the '-nodes' option
6064 so that the resulting key is not encrypted.
6065 [Damien Miller <djm@mindrot.org>]
6067 *) New configuration for the GNU Hurd.
6068 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6070 *) Initial code to implement OCSP basic response verify. This
6071 is currently incomplete. Currently just finds the signer's
6072 certificate and verifies the signature on the response.
6075 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6076 value of OPENSSLDIR. This is available via the new '-d' option
6077 to 'openssl version', and is also included in 'openssl version -a'.
6080 *) Allowing defining memory allocation callbacks that will be given
6081 file name and line number information in additional arguments
6082 (a const char* and an int). The basic functionality remains, as
6083 well as the original possibility to just replace malloc(),
6084 realloc() and free() by functions that do not know about these
6085 additional arguments. To register and find out the current
6086 settings for extended allocation functions, the following
6087 functions are provided:
6089 CRYPTO_set_mem_ex_functions
6090 CRYPTO_set_locked_mem_ex_functions
6091 CRYPTO_get_mem_ex_functions
6092 CRYPTO_get_locked_mem_ex_functions
6094 These work the same way as CRYPTO_set_mem_functions and friends.
6095 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6096 extended allocation function is enabled.
6097 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6098 a conventional allocation function is enabled.
6099 [Richard Levitte, Bodo Moeller]
6101 *) Finish off removing the remaining LHASH function pointer casts.
6102 There should no longer be any prototype-casting required when using
6103 the LHASH abstraction, and any casts that remain are "bugs". See
6104 the callback types and macros at the head of lhash.h for details
6105 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6108 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6109 If /dev/[u]random devices are not available or do not return enough
6110 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6112 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6113 /etc/entropy will be queried once each in this sequence, quering stops
6114 when enough entropy was collected without querying more sockets.
6117 *) Change the Unix RAND_poll() variant to be able to poll several
6118 random devices, as specified by DEVRANDOM, until a sufficient amount
6119 of data has been collected. We spend at most 10 ms on each file
6120 (select timeout) and read in non-blocking mode. DEVRANDOM now
6121 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6122 (previously it was just the string "/dev/urandom"), so on typical
6123 platforms the 10 ms delay will never occur.
6124 Also separate out the Unix variant to its own file, rand_unix.c.
6125 For VMS, there's a currently-empty rand_vms.c.
6128 *) Move OCSP client related routines to ocsp_cl.c. These
6129 provide utility functions which an application needing
6130 to issue a request to an OCSP responder and analyse the
6131 response will typically need: as opposed to those which an
6132 OCSP responder itself would need which will be added later.
6134 OCSP_request_sign() signs an OCSP request with an API similar
6135 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6136 response. OCSP_response_get1_basic() extracts basic response
6137 from response. OCSP_resp_find_status(): finds and extracts status
6138 information from an OCSP_CERTID structure (which will be created
6139 when the request structure is built). These are built from lower
6140 level functions which work on OCSP_SINGLERESP structures but
6141 wont normally be used unless the application wishes to examine
6142 extensions in the OCSP response for example.
6144 Replace nonce routines with a pair of functions.
6145 OCSP_request_add1_nonce() adds a nonce value and optionally
6146 generates a random value. OCSP_check_nonce() checks the
6147 validity of the nonce in an OCSP response.
6150 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6151 This doesn't copy the supplied OCSP_CERTID and avoids the
6152 need to free up the newly created id. Change return type
6153 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6154 This can then be used to add extensions to the request.
6155 Deleted OCSP_request_new(), since most of its functionality
6156 is now in OCSP_REQUEST_new() (and the case insensitive name
6157 clash) apart from the ability to set the request name which
6158 will be added elsewhere.
6161 *) Update OCSP API. Remove obsolete extensions argument from
6162 various functions. Extensions are now handled using the new
6163 OCSP extension code. New simple OCSP HTTP function which
6164 can be used to send requests and parse the response.
6167 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6168 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6169 uses the special reorder version of SET OF to sort the attributes
6170 and reorder them to match the encoded order. This resolves a long
6171 standing problem: a verify on a PKCS7 structure just after signing
6172 it used to fail because the attribute order did not match the
6173 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6174 it uses the received order. This is necessary to tolerate some broken
6175 software that does not order SET OF. This is handled by encoding
6176 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6177 to produce the required SET OF.
6180 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6181 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6182 files to get correct declarations of the ASN.1 item variables.
6185 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6186 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6187 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6188 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6189 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6190 ASN1_ITEM and no wrapper functions.
6193 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6194 replace the old function pointer based I/O routines. Change most of
6195 the *_d2i_bio() and *_d2i_fp() functions to use these.
6198 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6199 lines, recognice more "algorithms" that can be deselected, and make
6200 it complain about algorithm deselection that isn't recognised.
6203 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6204 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6205 to use new functions. Add NO_ASN1_OLD which can be set to remove
6206 some old style ASN1 functions: this can be used to determine if old
6207 code will still work when these eventually go away.
6210 *) New extension functions for OCSP structures, these follow the
6211 same conventions as certificates and CRLs.
6214 *) New function X509V3_add1_i2d(). This automatically encodes and
6215 adds an extension. Its behaviour can be customised with various
6216 flags to append, replace or delete. Various wrappers added for
6217 certifcates and CRLs.
6220 *) Fix to avoid calling the underlying ASN1 print routine when
6221 an extension cannot be parsed. Correct a typo in the
6222 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6225 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6226 entries for variables.
6229 *) Add functionality to apps/openssl.c for detecting locking
6230 problems: As the program is single-threaded, all we have
6231 to do is register a locking callback using an array for
6232 storing which locks are currently held by the program.
6235 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6236 SSL_get_ex_data_X509_STORE_idx(), which is used in
6237 ssl_verify_cert_chain() and thus can be called at any time
6238 during TLS/SSL handshakes so that thread-safety is essential.
6239 Unfortunately, the ex_data design is not at all suited
6240 for multi-threaded use, so it probably should be abolished.
6243 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6244 [Broadcom, tweaked and integrated by Geoff Thorpe]
6246 *) Move common extension printing code to new function
6247 X509V3_print_extensions(). Reorganise OCSP print routines and
6248 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6251 *) New function X509_signature_print() to remove duplication in some
6255 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6256 set (this was treated exactly the same as SET OF previously). This
6257 is used to reorder the STACK representing the structure to match the
6258 encoding. This will be used to get round a problem where a PKCS7
6259 structure which was signed could not be verified because the STACK
6260 order did not reflect the encoded order.
6263 *) Reimplement the OCSP ASN1 module using the new code.
6266 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6267 for its ASN1 operations. The old style function pointers still exist
6268 for now but they will eventually go away.
6271 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6272 completely replaces the old ASN1 functionality with a table driven
6273 encoder and decoder which interprets an ASN1_ITEM structure describing
6274 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6275 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6276 has also been converted to the new form.
6279 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6280 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6281 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6282 for negative moduli.
6285 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6286 of not touching the result's sign bit.
6289 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6293 *) Changed the LHASH code to use prototypes for callbacks, and created
6294 macros to declare and implement thin (optionally static) functions
6295 that provide type-safety and avoid function pointer casting for the
6296 type-specific callbacks.
6299 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6301 [Veers Staats <staatsvr@asc.hpc.mil>,
6302 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6304 *) Reformat the FAQ so the different questions and answers can be divided
6305 in sections depending on the subject.
6308 *) Have the zlib compression code load ZLIB.DLL dynamically under
6312 *) New function BN_mod_sqrt for computing square roots modulo a prime
6313 (using the probabilistic Tonelli-Shanks algorithm unless
6314 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6315 be handled deterministically).
6316 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6318 *) Make BN_mod_inverse faster by explicitly handling small quotients
6319 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6320 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6323 *) New function BN_kronecker.
6326 *) Fix BN_gcd so that it works on negative inputs; the result is
6327 positive unless both parameters are zero.
6328 Previously something reasonably close to an infinite loop was
6329 possible because numbers could be growing instead of shrinking
6330 in the implementation of Euclid's algorithm.
6333 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6334 sign of the number in question.
6336 Fix BN_is_word(a,w) to work correctly for w == 0.
6338 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
6339 because its test if the absolute value of 'a' equals 'w'.
6340 Note that BN_abs_is_word does *not* handle w == 0 reliably;
6341 it exists mostly for use in the implementations of BN_is_zero(),
6342 BN_is_one(), and BN_is_word().
6345 *) New function BN_swap.
6348 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
6349 the exponentiation functions are more likely to produce reasonable
6350 results on negative inputs.
6353 *) Change BN_mod_mul so that the result is always non-negative.
6354 Previously, it could be negative if one of the factors was negative;
6355 I don't think anyone really wanted that behaviour.
6358 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
6359 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
6360 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
6361 and add new functions:
6370 BN_mod_lshift1_quick
6374 These functions always generate non-negative results.
6376 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
6377 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
6379 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
6380 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
6381 be reduced modulo m.
6382 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6385 The following entry accidentally appeared in the CHANGES file
6386 distributed with OpenSSL 0.9.7. The modifications described in
6387 it do *not* apply to OpenSSL 0.9.7.
6389 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6390 was actually never needed) and in BN_mul(). The removal in BN_mul()
6391 required a small change in bn_mul_part_recursive() and the addition
6392 of the functions bn_cmp_part_words(), bn_sub_part_words() and
6393 bn_add_part_words(), which do the same thing as bn_cmp_words(),
6394 bn_sub_words() and bn_add_words() except they take arrays with
6399 *) In 'openssl passwd', verify passwords read from the terminal
6400 unless the '-salt' option is used (which usually means that
6401 verification would just waste user's time since the resulting
6402 hash is going to be compared with some given password hash)
6403 or the new '-noverify' option is used.
6405 This is an incompatible change, but it does not affect
6406 non-interactive use of 'openssl passwd' (passwords on the command
6407 line, '-stdin' option, '-in ...' option) and thus should not
6411 *) Remove all references to RSAref, since there's no more need for it.
6414 *) Make DSO load along a path given through an environment variable
6415 (SHLIB_PATH) with shl_load().
6418 *) Constify the ENGINE code as a result of BIGNUM constification.
6419 Also constify the RSA code and most things related to it. In a
6420 few places, most notable in the depth of the ASN.1 code, ugly
6421 casts back to non-const were required (to be solved at a later
6425 *) Make it so the openssl application has all engines loaded by default.
6428 *) Constify the BIGNUM routines a little more.
6431 *) Add the following functions:
6433 ENGINE_load_cswift()
6435 ENGINE_load_atalla()
6437 ENGINE_load_builtin_engines()
6439 That way, an application can itself choose if external engines that
6440 are built-in in OpenSSL shall ever be used or not. The benefit is
6441 that applications won't have to be linked with libdl or other dso
6442 libraries unless it's really needed.
6444 Changed 'openssl engine' to load all engines on demand.
6445 Changed the engine header files to avoid the duplication of some
6446 declarations (they differed!).
6449 *) 'openssl engine' can now list capabilities.
6452 *) Better error reporting in 'openssl engine'.
6455 *) Never call load_dh_param(NULL) in s_server.
6458 *) Add engine application. It can currently list engines by name and
6459 identity, and test if they are actually available.
6462 *) Improve RPM specification file by forcing symbolic linking and making
6463 sure the installed documentation is also owned by root.root.
6464 [Damien Miller <djm@mindrot.org>]
6466 *) Give the OpenSSL applications more possibilities to make use of
6467 keys (public as well as private) handled by engines.
6470 *) Add OCSP code that comes from CertCo.
6473 *) Add VMS support for the Rijndael code.
6476 *) Added untested support for Nuron crypto accelerator.
6479 *) Add support for external cryptographic devices. This code was
6480 previously distributed separately as the "engine" branch.
6481 [Geoff Thorpe, Richard Levitte]
6483 *) Rework the filename-translation in the DSO code. It is now possible to
6484 have far greater control over how a "name" is turned into a filename
6485 depending on the operating environment and any oddities about the
6486 different shared library filenames on each system.
6489 *) Support threads on FreeBSD-elf in Configure.
6492 *) Fix for SHA1 assembly problem with MASM: it produces
6493 warnings about corrupt line number information when assembling
6494 with debugging information. This is caused by the overlapping
6496 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6499 NCONF_get_number() has no error checking at all. As a replacement,
6500 NCONF_get_number_e() is defined (_e for "error checking") and is
6501 promoted strongly. The old NCONF_get_number is kept around for
6502 binary backward compatibility.
6503 Make it possible for methods to load from something other than a BIO,
6504 by providing a function pointer that is given a name instead of a BIO.
6505 For example, this could be used to load configuration data from an
6509 *) Fix for non blocking accept BIOs. Added new I/O special reason
6510 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6511 with non blocking I/O was not possible because no retry code was
6512 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6516 *) Added the beginnings of Rijndael support.
6519 *) Fix for bug in DirectoryString mask setting. Add support for
6520 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6521 to allow certificate printing to more controllable, additional
6522 'certopt' option to 'x509' to allow new printing options to be
6526 *) Clean old EAY MD5 hack from e_os.h.
6529 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6531 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6532 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6533 [Joe Orton, Steve Henson]
6535 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6537 *) Fix additional bug revealed by the NISCC test suite:
6539 Stop bug triggering large recursion when presented with
6540 certain ASN.1 tags (CVE-2003-0851)
6543 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6545 *) Fix various bugs revealed by running the NISCC test suite:
6547 Stop out of bounds reads in the ASN1 code when presented with
6548 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6550 If verify callback ignores invalid public key errors don't try to check
6551 certificate signature with the NULL public key.
6555 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6556 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6560 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6561 extra data after the compression methods not only for TLS 1.0
6562 but also for SSL 3.0 (as required by the specification).
6563 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6565 *) Change X509_certificate_type() to mark the key as exported/exportable
6566 when it's 512 *bits* long, not 512 bytes.
6569 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6571 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6572 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6573 a protocol version number mismatch like a decryption error
6574 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6577 *) Turn on RSA blinding by default in the default implementation
6578 to avoid a timing attack. Applications that don't want it can call
6579 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6580 They would be ill-advised to do so in most cases.
6581 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6583 *) Change RSA blinding code so that it works when the PRNG is not
6584 seeded (in this case, the secret RSA exponent is abused as
6585 an unpredictable seed -- if it is not unpredictable, there
6586 is no point in blinding anyway). Make RSA blinding thread-safe
6587 by remembering the creator's thread ID in rsa->blinding and
6588 having all other threads use local one-time blinding factors
6589 (this requires more computation than sharing rsa->blinding, but
6590 avoids excessive locking; and if an RSA object is not shared
6591 between threads, blinding will still be very fast).
6594 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6596 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6597 via timing by performing a MAC computation even if incorrrect
6598 block cipher padding has been found. This is a countermeasure
6599 against active attacks where the attacker has to distinguish
6600 between bad padding and a MAC verification error. (CVE-2003-0078)
6602 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6603 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6604 Martin Vuagnoux (EPFL, Ilion)]
6606 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6608 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6609 memory from it's contents. This is done with a counter that will
6610 place alternating values in each byte. This can be used to solve
6611 two issues: 1) the removal of calls to memset() by highly optimizing
6612 compilers, and 2) cleansing with other values than 0, since those can
6613 be read through on certain media, for example a swap space on disk.
6616 *) Bugfix: client side session caching did not work with external caching,
6617 because the session->cipher setting was not restored when reloading
6618 from the external cache. This problem was masked, when
6619 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6620 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6623 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6624 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6625 [Zeev Lieber <zeev-l@yahoo.com>]
6627 *) Undo an undocumented change introduced in 0.9.6e which caused
6628 repeated calls to OpenSSL_add_all_ciphers() and
6629 OpenSSL_add_all_digests() to be ignored, even after calling
6633 *) Change the default configuration reader to deal with last line not
6634 being properly terminated.
6637 *) Change X509_NAME_cmp() so it applies the special rules on handling
6638 DN values that are of type PrintableString, as well as RDNs of type
6639 emailAddress where the value has the type ia5String.
6640 [stefank@valicert.com via Richard Levitte]
6642 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6643 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6644 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6645 the bitwise-OR of the two for use by the majority of applications
6646 wanting this behaviour, and update the docs. The documented
6647 behaviour and actual behaviour were inconsistent and had been
6648 changing anyway, so this is more a bug-fix than a behavioural
6650 [Geoff Thorpe, diagnosed by Nadav Har'El]
6652 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6653 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6656 *) Fix initialization code race conditions in
6657 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6658 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6659 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6660 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6661 ssl2_get_cipher_by_char(),
6662 ssl3_get_cipher_by_char().
6663 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6665 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6666 the cached sessions are flushed, as the remove_cb() might use ex_data
6667 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6668 (see [openssl.org #212]).
6669 [Geoff Thorpe, Lutz Jaenicke]
6671 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6672 length, instead of the encoding length to d2i_ASN1_OBJECT.
6675 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6677 *) [In 0.9.6g-engine release:]
6678 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6679 [Lynn Gazis <lgazis@rainbow.com>]
6681 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6683 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6684 and get fix the header length calculation.
6685 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6686 Alon Kantor <alonk@checkpoint.com> (and others),
6689 *) Use proper error handling instead of 'assertions' in buffer
6690 overflow checks added in 0.9.6e. This prevents DoS (the
6691 assertions could call abort()).
6692 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6694 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6696 *) Add various sanity checks to asn1_get_length() to reject
6697 the ASN1 length bytes if they exceed sizeof(long), will appear
6698 negative or the content length exceeds the length of the
6700 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6702 *) Fix cipher selection routines: ciphers without encryption had no flags
6703 for the cipher strength set and where therefore not handled correctly
6704 by the selection routines (PR #130).
6707 *) Fix EVP_dsa_sha macro.
6711 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6712 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6713 that was added in OpenSSL 0.9.6d.
6715 As the countermeasure turned out to be incompatible with some
6716 broken SSL implementations, the new option is part of SSL_OP_ALL.
6717 SSL_OP_ALL is usually employed when compatibility with weird SSL
6718 implementations is desired (e.g. '-bugs' option to 's_client' and
6719 's_server'), so the new option is automatically set in many
6723 *) Changes in security patch:
6725 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6726 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6727 Air Force Materiel Command, USAF, under agreement number
6730 *) Add various sanity checks to asn1_get_length() to reject
6731 the ASN1 length bytes if they exceed sizeof(long), will appear
6732 negative or the content length exceeds the length of the
6733 supplied buffer. (CVE-2002-0659)
6734 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6736 *) Assertions for various potential buffer overflows, not known to
6738 [Ben Laurie (CHATS)]
6740 *) Various temporary buffers to hold ASCII versions of integers were
6741 too small for 64 bit platforms. (CVE-2002-0655)
6742 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6744 *) Remote buffer overflow in SSL3 protocol - an attacker could
6745 supply an oversized session ID to a client. (CVE-2002-0656)
6746 [Ben Laurie (CHATS)]
6748 *) Remote buffer overflow in SSL2 protocol - an attacker could
6749 supply an oversized client master key. (CVE-2002-0656)
6750 [Ben Laurie (CHATS)]
6752 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6754 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6755 encoded as NULL) with id-dsa-with-sha1.
6756 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6758 *) Check various X509_...() return values in apps/req.c.
6759 [Nils Larsch <nla@trustcenter.de>]
6761 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6762 an end-of-file condition would erronously be flagged, when the CRLF
6763 was just at the end of a processed block. The bug was discovered when
6764 processing data through a buffering memory BIO handing the data to a
6765 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6766 <ptsekov@syntrex.com> and Nedelcho Stanev.
6769 *) Implement a countermeasure against a vulnerability recently found
6770 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6771 before application data chunks to avoid the use of known IVs
6772 with data potentially chosen by the attacker.
6775 *) Fix length checks in ssl3_get_client_hello().
6778 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6779 to prevent ssl3_read_internal() from incorrectly assuming that
6780 ssl3_read_bytes() found application data while handshake
6781 processing was enabled when in fact s->s3->in_read_app_data was
6782 merely automatically cleared during the initial handshake.
6783 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6785 *) Fix object definitions for Private and Enterprise: they were not
6786 recognized in their shortname (=lowercase) representation. Extend
6787 obj_dat.pl to issue an error when using undefined keywords instead
6788 of silently ignoring the problem (Svenning Sorensen
6789 <sss@sss.dnsalias.net>).
6792 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6793 generators, i.e. generators other than 2 and 5. (Previously, the
6794 code did not properly initialise the 'add' and 'rem' values to
6795 BN_generate_prime().)
6797 In the new general case, we do not insist that 'generator' is
6798 actually a primitive root: This requirement is rather pointless;
6799 a generator of the order-q subgroup is just as good, if not
6803 *) Map new X509 verification errors to alerts. Discovered and submitted by
6804 Tom Wu <tom@arcot.com>.
6807 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6808 returning non-zero before the data has been completely received
6809 when using non-blocking I/O.
6810 [Bodo Moeller; problem pointed out by John Hughes]
6812 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6813 [Ben Laurie, Lutz Jaenicke]
6815 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6816 Yoram Zahavi <YoramZ@gilian.com>).
6819 *) Add information about CygWin 1.3 and on, and preserve proper
6820 configuration for the versions before that.
6821 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6823 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6824 check whether we deal with a copy of a session and do not delete from
6825 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6826 <izhar@checkpoint.com>.
6829 *) Do not store session data into the internal session cache, if it
6830 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6831 flag is set). Proposed by Aslam <aslam@funk.com>.
6834 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6838 *) [In 0.9.6d-engine release:]
6839 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6840 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6842 *) Add the configuration target linux-s390x.
6843 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6845 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6846 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6847 variable as an indication that a ClientHello message has been
6848 received. As the flag value will be lost between multiple
6849 invocations of ssl3_accept when using non-blocking I/O, the
6850 function may not be aware that a handshake has actually taken
6851 place, thus preventing a new session from being added to the
6854 To avoid this problem, we now set s->new_session to 2 instead of
6855 using a local variable.
6856 [Lutz Jaenicke, Bodo Moeller]
6858 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6859 if the SSL_R_LENGTH_MISMATCH error is detected.
6860 [Geoff Thorpe, Bodo Moeller]
6862 *) New 'shared_ldflag' column in Configure platform table.
6865 *) Fix EVP_CIPHER_mode macro.
6866 ["Dan S. Camper" <dan@bti.net>]
6868 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6869 type, we must throw them away by setting rr->length to 0.
6870 [D P Chang <dpc@qualys.com>]
6872 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6874 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6875 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6876 worked incorrectly for those cases where range = 10..._2 and
6877 3*range is two bits longer than range.)
6880 *) Only add signing time to PKCS7 structures if it is not already
6884 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6885 OBJ_ld_ce should be OBJ_id_ce.
6886 Also some ip-pda OIDs in crypto/objects/objects.txt were
6887 incorrect (cf. RFC 3039).
6888 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6890 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6891 returns early because it has nothing to do.
6892 [Andy Schneider <andy.schneider@bjss.co.uk>]
6894 *) [In 0.9.6c-engine release:]
6895 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6896 [Andy Schneider <andy.schneider@bjss.co.uk>]
6898 *) [In 0.9.6c-engine release:]
6899 Add support for Cryptographic Appliance's keyserver technology.
6900 (Use engine 'keyclient')
6901 [Cryptographic Appliances and Geoff Thorpe]
6903 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6904 is called via tools/c89.sh because arguments have to be
6905 rearranged (all '-L' options must appear before the first object
6907 [Richard Shapiro <rshapiro@abinitio.com>]
6909 *) [In 0.9.6c-engine release:]
6910 Add support for Broadcom crypto accelerator cards, backported
6912 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6914 *) [In 0.9.6c-engine release:]
6915 Add support for SureWare crypto accelerator cards from
6916 Baltimore Technologies. (Use engine 'sureware')
6917 [Baltimore Technologies and Mark Cox]
6919 *) [In 0.9.6c-engine release:]
6920 Add support for crypto accelerator cards from Accelerated
6921 Encryption Processing, www.aep.ie. (Use engine 'aep')
6922 [AEP Inc. and Mark Cox]
6924 *) Add a configuration entry for gcc on UnixWare.
6925 [Gary Benson <gbenson@redhat.com>]
6927 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6928 messages are stored in a single piece (fixed-length part and
6929 variable-length part combined) and fix various bugs found on the way.
6932 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6933 instead. BIO_gethostbyname() does not know what timeouts are
6934 appropriate, so entries would stay in cache even when they have
6936 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6938 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6939 faced with a pathologically small ClientHello fragment that does
6940 not contain client_version: Instead of aborting with an error,
6941 simply choose the highest available protocol version (i.e.,
6942 TLS 1.0 unless it is disabled). In practice, ClientHello
6943 messages are never sent like this, but this change gives us
6944 strictly correct behaviour at least for TLS.
6947 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6948 never resets s->method to s->ctx->method when called from within
6949 one of the SSL handshake functions.
6950 [Bodo Moeller; problem pointed out by Niko Baric]
6952 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6953 (sent using the client's version number) if client_version is
6954 smaller than the protocol version in use. Also change
6955 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6956 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6957 the client will at least see that alert.
6960 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6964 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6965 client receives HelloRequest while in a handshake.
6966 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6968 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6969 should end in 'break', not 'goto end' which circumvents various
6970 cleanups done in state SSL_ST_OK. But session related stuff
6971 must be disabled for SSL_ST_OK in the case that we just sent a
6974 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6975 before just sending a HelloRequest.
6976 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6978 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6979 reveal whether illegal block cipher padding was found or a MAC
6980 verification error occured. (Neither SSLerr() codes nor alerts
6981 are directly visible to potential attackers, but the information
6982 may leak via logfiles.)
6984 Similar changes are not required for the SSL 2.0 implementation
6985 because the number of padding bytes is sent in clear for SSL 2.0,
6986 and the extra bytes are just ignored. However ssl/s2_pkt.c
6987 failed to verify that the purported number of padding bytes is in
6991 *) Add OpenUNIX-8 support including shared libraries
6992 (Boyd Lynn Gerber <gerberb@zenez.com>).
6995 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6996 'wristwatch attack' using huge encoding parameters (cf.
6997 James H. Manger's CRYPTO 2001 paper). Note that the
6998 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6999 encoding parameters and hence was not vulnerable.
7002 *) BN_sqr() bug fix.
7003 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7005 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7006 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7007 followed by modular reduction.
7008 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7010 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7011 equivalent based on BN_pseudo_rand() instead of BN_rand().
7014 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7015 This function was broken, as the check for a new client hello message
7016 to handle SGC did not allow these large messages.
7017 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7020 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7023 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7024 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7027 *) Rework the configuration and shared library support for Tru64 Unix.
7028 The configuration part makes use of modern compiler features and
7029 still retains old compiler behavior for those that run older versions
7030 of the OS. The shared library support part includes a variant that
7031 uses the RPATH feature, and is available through the special
7032 configuration target "alpha-cc-rpath", which will never be selected
7034 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7036 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7037 with the same message size as in ssl3_get_certificate_request().
7038 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7039 messages might inadvertently be reject as too long.
7040 [Petr Lampa <lampa@fee.vutbr.cz>]
7042 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7045 *) Modified SSL library such that the verify_callback that has been set
7046 specificly for an SSL object with SSL_set_verify() is actually being
7047 used. Before the change, a verify_callback set with this function was
7048 ignored and the verify_callback() set in the SSL_CTX at the time of
7049 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7050 to allow the necessary settings.
7053 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7054 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7055 done automatically (in contradiction to the requirements of the C
7056 standard). This made problems when used from OpenSSH.
7059 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7060 dh->length and always used
7062 BN_rand_range(priv_key, dh->p).
7064 BN_rand_range() is not necessary for Diffie-Hellman, and this
7065 specific range makes Diffie-Hellman unnecessarily inefficient if
7066 dh->length (recommended exponent length) is much smaller than the
7067 length of dh->p. We could use BN_rand_range() if the order of
7068 the subgroup was stored in the DH structure, but we only have
7073 BN_rand(priv_key, l, ...)
7075 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7081 RSA_eay_public_encrypt
7082 RSA_eay_private_decrypt
7083 RSA_eay_private_encrypt (signing)
7084 RSA_eay_public_decrypt (signature verification)
7086 (default implementations for RSA_public_encrypt,
7087 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7088 always reject numbers >= n.
7091 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7092 to synchronize access to 'locking_thread'. This is necessary on
7093 systems where access to 'locking_thread' (an 'unsigned long'
7094 variable) is not atomic.
7097 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7098 *before* setting the 'crypto_lock_rand' flag. The previous code had
7099 a race condition if 0 is a valid thread ID.
7100 [Travis Vitek <vitek@roguewave.com>]
7102 *) Add support for shared libraries under Irix.
7103 [Albert Chin-A-Young <china@thewrittenword.com>]
7105 *) Add configuration option to build on Linux on both big-endian and
7107 [Ralf Baechle <ralf@uni-koblenz.de>]
7109 *) Add the possibility to create shared libraries on HP-UX.
7112 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7114 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7115 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7116 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7117 PRNG state recovery was possible based on the output of
7118 one PRNG request appropriately sized to gain knowledge on
7119 'md' followed by enough consecutive 1-byte PRNG requests
7120 to traverse all of 'state'.
7122 1. When updating 'md_local' (the current thread's copy of 'md')
7123 during PRNG output generation, hash all of the previous
7124 'md_local' value, not just the half used for PRNG output.
7126 2. Make the number of bytes from 'state' included into the hash
7127 independent from the number of PRNG bytes requested.
7129 The first measure alone would be sufficient to avoid
7130 Markku-Juhani's attack. (Actually it had never occurred
7131 to me that the half of 'md_local' used for chaining was the
7132 half from which PRNG output bytes were taken -- I had always
7133 assumed that the secret half would be used.) The second
7134 measure makes sure that additional data from 'state' is never
7135 mixed into 'md_local' in small portions; this heuristically
7136 further strengthens the PRNG.
7139 *) Fix crypto/bn/asm/mips3.s.
7142 *) When only the key is given to "enc", the IV is undefined. Print out
7143 an error message in this case.
7146 *) Handle special case when X509_NAME is empty in X509 printing routines.
7149 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7150 positive and less than q.
7153 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7154 used: it isn't thread safe and the add_lock_callback should handle
7156 [Paul Rose <Paul.Rose@bridge.com>]
7158 *) Verify that incoming data obeys the block size in
7159 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7163 [Ulf Möller, Bodo Möller]
7165 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7166 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7167 when fixing the server behaviour for backwards-compatible 'client
7168 hello' messages. (Note that the attack is impractical against
7169 SSL 3.0 and TLS 1.0 anyway because length and version checking
7170 means that the probability of guessing a valid ciphertext is
7171 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7174 Before 0.9.5, the countermeasure (hide the error by generating a
7175 random 'decryption result') did not work properly because
7176 ERR_clear_error() was missing, meaning that SSL_get_error() would
7177 detect the supposedly ignored error.
7179 Both problems are now fixed.
7182 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7183 (previously it was 1024).
7186 *) Fix for compatibility mode trust settings: ignore trust settings
7187 unless some valid trust or reject settings are present.
7190 *) Fix for blowfish EVP: its a variable length cipher.
7193 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7194 parameters in DSA public key structures and return an error in the
7195 DSA routines if parameters are absent.
7198 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7199 in the current directory if neither $RANDFILE nor $HOME was set.
7200 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7201 caused some confusion to Windows users who haven't defined $HOME.
7202 Thus RAND_file_name() is changed again: e_os.h can define a
7203 DEFAULT_HOME, which will be used if $HOME is not set.
7204 For Windows, we use "C:"; on other platforms, we still require
7205 environment variables.
7207 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7208 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7209 having multiple threads call RAND_poll() concurrently.
7212 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7213 combination of a flag and a thread ID variable.
7214 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7215 flag), *other* threads can enter ssleay_add_bytes without obeying
7216 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7217 that they do not hold after the first thread unsets add_do_not_lock).
7220 *) Change bctest again: '-x' expressions are not available in all
7224 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7226 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7227 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7229 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7230 the default extension for executables, if any. Also, make the perl
7231 scripts that use symlink() to test if it really exists and use "cp"
7232 if it doesn't. All this made OpenSSL compilable and installable in
7236 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7237 If SEQUENCE is length is indefinite just set c->slen to the total
7238 amount of data available.
7239 [Steve Henson, reported by shige@FreeBSD.org]
7240 [This change does not apply to 0.9.7.]
7242 *) Change bctest to avoid here-documents inside command substitution
7243 (workaround for FreeBSD /bin/sh bug).
7244 For compatibility with Ultrix, avoid shell functions (introduced
7245 in the bctest version that searches along $PATH).
7248 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7249 with des_encrypt() defined on some operating systems, like Solaris
7253 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7254 On the Importance of Eliminating Errors in Cryptographic
7255 Computations, J. Cryptology 14 (2001) 2, 101-119,
7256 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7259 *) MIPS assembler BIGNUM division bug fix.
7262 *) Disabled incorrect Alpha assembler code.
7265 *) Fix PKCS#7 decode routines so they correctly update the length
7266 after reading an EOC for the EXPLICIT tag.
7268 [This change does not apply to 0.9.7.]
7270 *) Fix bug in PKCS#12 key generation routines. This was triggered
7271 if a 3DES key was generated with a 0 initial byte. Include
7272 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7273 (but broken) behaviour.
7276 *) Enhance bctest to search for a working bc along $PATH and print
7278 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7280 *) Fix memory leaks in err.c: free err_data string if necessary;
7281 don't write to the wrong index in ERR_set_error_data.
7284 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7288 *) Replace rdtsc with _emit statements for VC++ version 5.
7289 [Jeremy Cooper <jeremy@baymoo.org>]
7291 *) Make it possible to reuse SSLv2 sessions.
7294 *) In copy_email() check for >= 0 as a return value for
7295 X509_NAME_get_index_by_NID() since 0 is a valid index.
7296 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7298 *) Avoid coredump with unsupported or invalid public keys by checking if
7299 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7300 PKCS7_verify() fails with non detached data.
7303 *) Don't use getenv in library functions when run as setuid/setgid.
7304 New function OPENSSL_issetugid().
7307 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7308 due to incorrect handling of multi-threading:
7310 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7312 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7314 3. Count how many times MemCheck_off() has been called so that
7315 nested use can be treated correctly. This also avoids
7316 inband-signalling in the previous code (which relied on the
7317 assumption that thread ID 0 is impossible).
7320 *) Add "-rand" option also to s_client and s_server.
7323 *) Fix CPU detection on Irix 6.x.
7324 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7325 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7327 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7330 [This change does not apply to 0.9.7.]
7332 *) Use the cached encoding of an X509_NAME structure rather than
7333 copying it. This is apparently the reason for the libsafe "errors"
7334 but the code is actually correct.
7337 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7338 Bleichenbacher's DSA attack.
7339 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
7340 to be set and top=0 forces the highest bit to be set; top=-1 is new
7341 and leaves the highest bit random.
7342 [Ulf Moeller, Bodo Moeller]
7344 *) In the NCONF_...-based implementations for CONF_... queries
7345 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
7346 a temporary CONF structure with the data component set to NULL
7347 (which gives segmentation faults in lh_retrieve).
7348 Instead, use NULL for the CONF pointer in CONF_get_string and
7349 CONF_get_number (which may use environment variables) and directly
7350 return NULL from CONF_get_section.
7353 *) Fix potential buffer overrun for EBCDIC.
7356 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
7357 keyUsage if basicConstraints absent for a CA.
7360 *) Make SMIME_write_PKCS7() write mail header values with a format that
7361 is more generally accepted (no spaces before the semicolon), since
7362 some programs can't parse those values properly otherwise. Also make
7363 sure BIO's that break lines after each write do not create invalid
7367 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
7368 macros previously used would not encode an empty SEQUENCE OF
7369 and break the signature.
7371 [This change does not apply to 0.9.7.]
7373 *) Zero the premaster secret after deriving the master secret in
7377 *) Add some EVP_add_digest_alias registrations (as found in
7378 OpenSSL_add_all_digests()) to SSL_library_init()
7379 aka OpenSSL_add_ssl_algorithms(). This provides improved
7380 compatibility with peers using X.509 certificates
7381 with unconventional AlgorithmIdentifier OIDs.
7384 *) Fix for Irix with NO_ASM.
7385 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7387 *) ./config script fixes.
7388 [Ulf Moeller, Richard Levitte]
7390 *) Fix 'openssl passwd -1'.
7393 *) Change PKCS12_key_gen_asc() so it can cope with non null
7394 terminated strings whose length is passed in the passlen
7395 parameter, for example from PEM callbacks. This was done
7396 by adding an extra length parameter to asc2uni().
7397 [Steve Henson, reported by <oddissey@samsung.co.kr>]
7399 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
7400 call failed, free the DSA structure.
7403 *) Fix to uni2asc() to cope with zero length Unicode strings.
7404 These are present in some PKCS#12 files.
7407 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
7408 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
7409 when writing a 32767 byte record.
7410 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
7412 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
7413 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
7415 (RSA objects have a reference count access to which is protected
7416 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
7417 so they are meant to be shared between threads.)
7418 [Bodo Moeller, Geoff Thorpe; original patch submitted by
7419 "Reddie, Steven" <Steven.Reddie@ca.com>]
7421 *) Fix a deadlock in CRYPTO_mem_leaks().
7424 *) Use better test patterns in bntest.
7427 *) rand_win.c fix for Borland C.
7430 *) BN_rshift bugfix for n == 0.
7433 *) Add a 'bctest' script that checks for some known 'bc' bugs
7434 so that 'make test' does not abort just because 'bc' is broken.
7437 *) Store verify_result within SSL_SESSION also for client side to
7438 avoid potential security hole. (Re-used sessions on the client side
7439 always resulted in verify_result==X509_V_OK, not using the original
7440 result of the server certificate verification.)
7443 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
7444 SSL3_RT_APPLICATION_DATA, return 0.
7445 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
7449 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
7450 releases, have been re-implemented by renaming the previous
7451 implementations of ssl2_read and ssl3_read to ssl2_read_internal
7452 and ssl3_read_internal, respectively, and adding 'peek' parameters
7453 to them. The new ssl[23]_{read,peek} functions are calls to
7454 ssl[23]_read_internal with the 'peek' flag set appropriately.
7455 A 'peek' parameter has also been added to ssl3_read_bytes, which
7456 does the actual work for ssl3_read_internal.
7459 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7460 the method-specific "init()" handler. Also clean up ex_data after
7461 calling the method-specific "finish()" handler. Previously, this was
7462 happening the other way round.
7465 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7466 The previous value, 12, was not always sufficient for BN_mod_exp().
7469 *) Make sure that shared libraries get the internal name engine with
7470 the full version number and not just 0. This should mark the
7471 shared libraries as not backward compatible. Of course, this should
7472 be changed again when we can guarantee backward binary compatibility.
7475 *) Fix typo in get_cert_by_subject() in by_dir.c
7476 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7478 *) Rework the system to generate shared libraries:
7480 - Make note of the expected extension for the shared libraries and
7481 if there is a need for symbolic links from for example libcrypto.so.0
7482 to libcrypto.so.0.9.7. There is extended info in Configure for
7485 - Make as few rebuilds of the shared libraries as possible.
7487 - Still avoid linking the OpenSSL programs with the shared libraries.
7489 - When installing, install the shared libraries separately from the
7493 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7495 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7496 and not in SSL_clear because the latter is also used by the
7497 accept/connect functions; previously, the settings made by
7498 SSL_set_read_ahead would be lost during the handshake.
7499 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7501 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7502 Previously, it would create entries for disableed algorithms no
7506 *) Added several new manual pages for SSL_* function.
7509 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7511 *) In ssl23_get_client_hello, generate an error message when faced
7512 with an initial SSL 3.0/TLS record that is too small to contain the
7513 first two bytes of the ClientHello message, i.e. client_version.
7514 (Note that this is a pathologic case that probably has never happened
7515 in real life.) The previous approach was to use the version number
7516 from the record header as a substitute; but our protocol choice
7517 should not depend on that one because it is not authenticated
7518 by the Finished messages.
7521 *) More robust randomness gathering functions for Windows.
7522 [Jeffrey Altman <jaltman@columbia.edu>]
7524 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7525 not set then we don't setup the error code for issuer check errors
7526 to avoid possibly overwriting other errors which the callback does
7527 handle. If an application does set the flag then we assume it knows
7528 what it is doing and can handle the new informational codes
7532 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7533 a general "ANY" type, as such it should be able to decode anything
7534 including tagged types. However it didn't check the class so it would
7535 wrongly interpret tagged types in the same way as their universal
7536 counterpart and unknown types were just rejected. Changed so that the
7537 tagged and unknown types are handled in the same way as a SEQUENCE:
7538 that is the encoding is stored intact. There is also a new type
7539 "V_ASN1_OTHER" which is used when the class is not universal, in this
7540 case we have no idea what the actual type is so we just lump them all
7544 *) On VMS, stdout may very well lead to a file that is written to
7545 in a record-oriented fashion. That means that every write() will
7546 write a separate record, which will be read separately by the
7547 programs trying to read from it. This can be very confusing.
7549 The solution is to put a BIO filter in the way that will buffer
7550 text until a linefeed is reached, and then write everything a
7551 line at a time, so every record written will be an actual line,
7552 not chunks of lines and not (usually doesn't happen, but I've
7553 seen it once) several lines in one record. BIO_f_linebuffer() is
7556 Currently, it's a VMS-only method, because that's where it has
7557 been tested well enough.
7560 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7561 it can return incorrect results.
7562 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7563 but it was in 0.9.6-beta[12].)
7566 *) Disable the check for content being present when verifying detached
7567 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7568 include zero length content when signing messages.
7571 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7572 BIO_ctrl (for BIO pairs).
7575 *) Add DSO method for VMS.
7578 *) Bug fix: Montgomery multiplication could produce results with the
7582 *) Add RPM specification openssl.spec and modify it to build three
7583 packages. The default package contains applications, application
7584 documentation and run-time libraries. The devel package contains
7585 include files, static libraries and function documentation. The
7586 doc package contains the contents of the doc directory. The original
7587 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7590 *) Add a large number of documentation files for many SSL routines.
7591 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7593 *) Add a configuration entry for Sony News 4.
7594 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7596 *) Don't set the two most significant bits to one when generating a
7597 random number < q in the DSA library.
7600 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7601 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7602 the underlying transport is blocking) if a handshake took place.
7603 (The default behaviour is needed by applications such as s_client
7604 and s_server that use select() to determine when to use SSL_read;
7605 but for applications that know in advance when to expect data, it
7606 just makes things more complicated.)
7609 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7613 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7614 work better on such systems.
7615 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7617 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7618 Update PKCS12_parse() so it copies the friendlyName and the
7619 keyid to the certificates aux info.
7622 *) Fix bug in PKCS7_verify() which caused an infinite loop
7623 if there was more than one signature.
7624 [Sven Uszpelkat <su@celocom.de>]
7626 *) Major change in util/mkdef.pl to include extra information
7627 about each symbol, as well as presenting variables as well
7628 as functions. This change means that there's n more need
7629 to rebuild the .num files when some algorithms are excluded.
7632 *) Allow the verify time to be set by an application,
7633 rather than always using the current time.
7636 *) Phase 2 verify code reorganisation. The certificate
7637 verify code now looks up an issuer certificate by a
7638 number of criteria: subject name, authority key id
7639 and key usage. It also verifies self signed certificates
7640 by the same criteria. The main comparison function is
7641 X509_check_issued() which performs these checks.
7643 Lot of changes were necessary in order to support this
7644 without completely rewriting the lookup code.
7646 Authority and subject key identifier are now cached.
7648 The LHASH 'certs' is X509_STORE has now been replaced
7649 by a STACK_OF(X509_OBJECT). This is mainly because an
7650 LHASH can't store or retrieve multiple objects with
7651 the same hash value.
7653 As a result various functions (which were all internal
7654 use only) have changed to handle the new X509_STORE
7655 structure. This will break anything that messed round
7656 with X509_STORE internally.
7658 The functions X509_STORE_add_cert() now checks for an
7659 exact match, rather than just subject name.
7661 The X509_STORE API doesn't directly support the retrieval
7662 of multiple certificates matching a given criteria, however
7663 this can be worked round by performing a lookup first
7664 (which will fill the cache with candidate certificates)
7665 and then examining the cache for matches. This is probably
7666 the best we can do without throwing out X509_LOOKUP
7667 entirely (maybe later...).
7669 The X509_VERIFY_CTX structure has been enhanced considerably.
7671 All certificate lookup operations now go via a get_issuer()
7672 callback. Although this currently uses an X509_STORE it
7673 can be replaced by custom lookups. This is a simple way
7674 to bypass the X509_STORE hackery necessary to make this
7675 work and makes it possible to use more efficient techniques
7676 in future. A very simple version which uses a simple
7677 STACK for its trusted certificate store is also provided
7678 using X509_STORE_CTX_trusted_stack().
7680 The verify_cb() and verify() callbacks now have equivalents
7681 in the X509_STORE_CTX structure.
7683 X509_STORE_CTX also has a 'flags' field which can be used
7684 to customise the verify behaviour.
7687 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7688 excludes S/MIME capabilities.
7691 *) When a certificate request is read in keep a copy of the
7692 original encoding of the signed data and use it when outputing
7693 again. Signatures then use the original encoding rather than
7694 a decoded, encoded version which may cause problems if the
7695 request is improperly encoded.
7698 *) For consistency with other BIO_puts implementations, call
7699 buffer_write(b, ...) directly in buffer_puts instead of calling
7702 In BIO_puts, increment b->num_write as in BIO_write.
7703 [Peter.Sylvester@EdelWeb.fr]
7705 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7706 BN_zero, we may not return a BIGNUM with an array consisting of
7710 *) Avoid calling abort() from within the library when problems are
7711 detected, except if preprocessor symbols have been defined
7712 (such as REF_CHECK, BN_DEBUG etc.).
7715 *) New openssl application 'rsautl'. This utility can be
7716 used for low level RSA operations. DER public key
7717 BIO/fp routines also added.
7720 *) New Configure entry and patches for compiling on QNX 4.
7721 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7723 *) A demo state-machine implementation was sponsored by
7724 Nuron (http://www.nuron.com/) and is now available in
7725 demos/state_machine.
7728 *) New options added to the 'dgst' utility for signature
7729 generation and verification.
7732 *) Unrecognized PKCS#7 content types are now handled via a
7733 catch all ASN1_TYPE structure. This allows unsupported
7734 types to be stored as a "blob" and an application can
7735 encode and decode it manually.
7738 *) Fix various signed/unsigned issues to make a_strex.c
7740 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7742 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7743 length if passed a buffer. ASN1_INTEGER_to_BN failed
7744 if passed a NULL BN and its argument was negative.
7745 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7747 *) Modification to PKCS#7 encoding routines to output definite
7748 length encoding. Since currently the whole structures are in
7749 memory there's not real point in using indefinite length
7750 constructed encoding. However if OpenSSL is compiled with
7751 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7754 *) Added BIO_vprintf() and BIO_vsnprintf().
7757 *) Added more prefixes to parse for in the the strings written
7758 through a logging bio, to cover all the levels that are available
7759 through syslog. The prefixes are now:
7761 PANIC, EMERG, EMR => LOG_EMERG
7762 ALERT, ALR => LOG_ALERT
7763 CRIT, CRI => LOG_CRIT
7764 ERROR, ERR => LOG_ERR
7765 WARNING, WARN, WAR => LOG_WARNING
7766 NOTICE, NOTE, NOT => LOG_NOTICE
7767 INFO, INF => LOG_INFO
7768 DEBUG, DBG => LOG_DEBUG
7770 and as before, if none of those prefixes are present at the
7771 beginning of the string, LOG_ERR is chosen.
7773 On Win32, the LOG_* levels are mapped according to this:
7775 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7776 LOG_WARNING => EVENTLOG_WARNING_TYPE
7777 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7781 *) Made it possible to reconfigure with just the configuration
7782 argument "reconf" or "reconfigure". The command line arguments
7783 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7784 and are retrieved from there when reconfiguring.
7788 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7790 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7793 *) The obj_dat.pl script was messing up the sorting of object
7794 names. The reason was that it compared the quoted version
7795 of strings as a result "OCSP" > "OCSP Signing" because
7796 " > SPACE. Changed script to store unquoted versions of
7797 names and add quotes on output. It was also omitting some
7798 names from the lookup table if they were given a default
7799 value (that is if SN is missing it is given the same
7800 value as LN and vice versa), these are now added on the
7801 grounds that if an object has a name we should be able to
7802 look it up. Finally added warning output when duplicate
7803 short or long names are found.
7806 *) Changes needed for Tandem NSK.
7807 [Scott Uroff <scott@xypro.com>]
7809 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7810 RSA_padding_check_SSLv23(), special padding was never detected
7811 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7812 version rollback attacks was not effective.
7814 In s23_clnt.c, don't use special rollback-attack detection padding
7815 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7816 client; similarly, in s23_srvr.c, don't do the rollback check if
7817 SSL 2.0 is the only protocol enabled in the server.
7820 *) Make it possible to get hexdumps of unprintable data with 'openssl
7821 asn1parse'. By implication, the functions ASN1_parse_dump() and
7822 BIO_dump_indent() are added.
7825 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7826 these print out strings and name structures based on various
7827 flags including RFC2253 support and proper handling of
7828 multibyte characters. Added options to the 'x509' utility
7829 to allow the various flags to be set.
7832 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7833 Also change the functions X509_cmp_current_time() and
7834 X509_gmtime_adj() work with an ASN1_TIME structure,
7835 this will enable certificates using GeneralizedTime in validity
7836 dates to be checked.
7839 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7840 negative public key encodings) on by default,
7841 NO_NEG_PUBKEY_BUG can be set to disable it.
7844 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7845 content octets. An i2c_ASN1_OBJECT is unnecessary because
7846 the encoding can be trivially obtained from the structure.
7849 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7850 not read locks (CRYPTO_r_[un]lock).
7853 *) A first attempt at creating official support for shared
7854 libraries through configuration. I've kept it so the
7855 default is static libraries only, and the OpenSSL programs
7856 are always statically linked for now, but there are
7857 preparations for dynamic linking in place.
7858 This has been tested on Linux and Tru64.
7861 *) Randomness polling function for Win9x, as described in:
7862 Peter Gutmann, Software Generation of Practically Strong
7866 *) Fix so PRNG is seeded in req if using an already existing
7870 *) New options to smime application. -inform and -outform
7871 allow alternative formats for the S/MIME message including
7872 PEM and DER. The -content option allows the content to be
7873 specified separately. This should allow things like Netscape
7874 form signing output easier to verify.
7877 *) Fix the ASN1 encoding of tags using the 'long form'.
7880 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7881 STRING types. These convert content octets to and from the
7882 underlying type. The actual tag and length octets are
7883 already assumed to have been read in and checked. These
7884 are needed because all other string types have virtually
7885 identical handling apart from the tag. By having versions
7886 of the ASN1 functions that just operate on content octets
7887 IMPLICIT tagging can be handled properly. It also allows
7888 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7889 and ASN1_INTEGER are identical apart from the tag.
7892 *) Change the handling of OID objects as follows:
7894 - New object identifiers are inserted in objects.txt, following
7895 the syntax given in objects.README.
7896 - objects.pl is used to process obj_mac.num and create a new
7898 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7901 This is currently kind of a hack, and the perl code in objects.pl
7902 isn't very elegant, but it works as I intended. The simplest way
7903 to check that it worked correctly is to look in obj_dat.h and
7904 check the array nid_objs and make sure the objects haven't moved
7905 around (this is important!). Additions are OK, as well as
7906 consistent name changes.
7909 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7912 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7913 The given file adds to whatever has already been seeded into the
7914 random pool through the RANDFILE configuration file option or
7915 environment variable, or the default random state file.
7918 *) mkstack.pl now sorts each macro group into lexical order.
7919 Previously the output order depended on the order the files
7920 appeared in the directory, resulting in needless rewriting
7924 *) Patches to make OpenSSL compile under Win32 again. Mostly
7925 work arounds for the VC++ problem that it treats func() as
7926 func(void). Also stripped out the parts of mkdef.pl that
7927 added extra typesafe functions: these no longer exist.
7930 *) Reorganisation of the stack code. The macros are now all
7931 collected in safestack.h . Each macro is defined in terms of
7932 a "stack macro" of the form SKM_<name>(type, a, b). The
7933 DEBUG_SAFESTACK is now handled in terms of function casts,
7934 this has the advantage of retaining type safety without the
7935 use of additional functions. If DEBUG_SAFESTACK is not defined
7936 then the non typesafe macros are used instead. Also modified the
7937 mkstack.pl script to handle the new form. Needs testing to see
7938 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7939 the default if no major problems. Similar behaviour for ASN1_SET_OF
7940 and PKCS12_STACK_OF.
7943 *) When some versions of IIS use the 'NET' form of private key the
7944 key derivation algorithm is different. Normally MD5(password) is
7945 used as a 128 bit RC4 key. In the modified case
7946 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
7947 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7948 as the old Netscape_RSA functions except they have an additional
7949 'sgckey' parameter which uses the modified algorithm. Also added
7950 an -sgckey command line option to the rsa utility. Thanks to
7951 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7952 algorithm to openssl-dev.
7955 *) The evp_local.h macros were using 'c.##kname' which resulted in
7956 invalid expansion on some systems (SCO 5.0.5 for example).
7957 Corrected to 'c.kname'.
7958 [Phillip Porch <root@theporch.com>]
7960 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7961 a STACK of email addresses from a certificate or request, these look
7962 in the subject name and the subject alternative name extensions and
7963 omit any duplicate addresses.
7966 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7967 This makes DSA verification about 2 % faster.
7970 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7971 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7972 plus overhead for 1024 bit moduli).
7973 This makes exponentiations about 0.5 % faster for 1024 bit
7974 exponents (as measured by "openssl speed rsa2048").
7977 *) Rename memory handling macros to avoid conflicts with other
7979 Malloc => OPENSSL_malloc
7980 Malloc_locked => OPENSSL_malloc_locked
7981 Realloc => OPENSSL_realloc
7982 Free => OPENSSL_free
7985 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7986 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7989 *) CygWin32 support.
7990 [John Jarvie <jjarvie@newsguy.com>]
7992 *) The type-safe stack code has been rejigged. It is now only compiled
7993 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7994 by default all type-specific stack functions are "#define"d back to
7995 standard stack functions. This results in more streamlined output
7996 but retains the type-safety checking possibilities of the original
8000 *) The STACK code has been cleaned up, and certain type declarations
8001 that didn't make a lot of sense have been brought in line. This has
8002 also involved a cleanup of sorts in safestack.h to more correctly
8003 map type-safe stack functions onto their plain stack counterparts.
8004 This work has also resulted in a variety of "const"ifications of
8005 lots of the code, especially "_cmp" operations which should normally
8006 be prototyped with "const" parameters anyway.
8009 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8010 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8011 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8012 where all of 'md' is used each time the PRNG is used, but 'state'
8013 is used only indexed by a cyclic counter. As entropy may not be
8014 well distributed from the beginning, 'md' is important as a
8015 chaining variable. However, the output function chains only half
8016 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8017 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8018 in all of 'state' being rewritten, with the new values depending
8019 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8022 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8023 the handshake is continued after ssl_verify_cert_chain();
8024 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8025 can lead to 'unexplainable' connection aborts later.
8026 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8028 *) Major EVP API cipher revision.
8029 Add hooks for extra EVP features. This allows various cipher
8030 parameters to be set in the EVP interface. Support added for variable
8031 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8032 setting of RC2 and RC5 parameters.
8034 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8037 Remove lots of duplicated code from the EVP library. For example *every*
8038 cipher init() function handles the 'iv' in the same way according to the
8039 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8040 for CFB and OFB modes they zero ctx->num.
8042 New functionality allows removal of S/MIME code RC2 hack.
8044 Most of the routines have the same form and so can be declared in terms
8047 By shifting this to the top level EVP_CipherInit() it can be removed from
8048 all individual ciphers. If the cipher wants to handle IVs or keys
8049 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8052 Change lots of functions like EVP_EncryptUpdate() to now return a
8053 value: although software versions of the algorithms cannot fail
8054 any installed hardware versions can.
8057 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8058 this option is set, tolerate broken clients that send the negotiated
8059 protocol version number instead of the requested protocol version
8063 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8064 i.e. non-zero for export ciphersuites, zero otherwise.
8065 Previous versions had this flag inverted, inconsistent with
8066 rsa_tmp_cb (..._TMP_RSA_CB).
8067 [Bodo Moeller; problem reported by Amit Chopra]
8069 *) Add missing DSA library text string. Work around for some IIS
8070 key files with invalid SEQUENCE encoding.
8073 *) Add a document (doc/standards.txt) that list all kinds of standards
8074 and so on that are implemented in OpenSSL.
8077 *) Enhance c_rehash script. Old version would mishandle certificates
8078 with the same subject name hash and wouldn't handle CRLs at all.
8079 Added -fingerprint option to crl utility, to support new c_rehash
8083 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8086 *) Fix for SSL server purpose checking. Server checking was
8087 rejecting certificates which had extended key usage present
8088 but no ssl client purpose.
8089 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8091 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8092 is a little unclear about how a blank password is handled.
8093 Since the password in encoded as a BMPString with terminating
8094 double NULL a zero length password would end up as just the
8095 double NULL. However no password at all is different and is
8096 handled differently in the PKCS#12 key generation code. NS
8097 treats a blank password as zero length. MSIE treats it as no
8098 password on export: but it will try both on import. We now do
8099 the same: PKCS12_parse() tries zero length and no password if
8100 the password is set to "" or NULL (NULL is now a valid password:
8101 it wasn't before) as does the pkcs12 application.
8104 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8105 perror when PEM_read_bio_X509_REQ fails, the error message must
8106 be obtained from the error queue.
8109 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8110 it in ERR_remove_state if appropriate, and change ERR_get_state
8111 accordingly to avoid race conditions (this is necessary because
8112 thread_hash is no longer constant once set).
8115 *) Bugfix for linux-elf makefile.one.
8118 *) RSA_get_default_method() will now cause a default
8119 RSA_METHOD to be chosen if one doesn't exist already.
8120 Previously this was only set during a call to RSA_new()
8121 or RSA_new_method(NULL) meaning it was possible for
8122 RSA_get_default_method() to return NULL.
8125 *) Added native name translation to the existing DSO code
8126 that will convert (if the flag to do so is set) filenames
8127 that are sufficiently small and have no path information
8128 into a canonical native form. Eg. "blah" converted to
8129 "libblah.so" or "blah.dll" etc.
8132 *) New function ERR_error_string_n(e, buf, len) which is like
8133 ERR_error_string(e, buf), but writes at most 'len' bytes
8134 including the 0 terminator. For ERR_error_string_n, 'buf'
8136 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8138 *) CONF library reworked to become more general. A new CONF
8139 configuration file reader "class" is implemented as well as a
8140 new functions (NCONF_*, for "New CONF") to handle it. The now
8141 old CONF_* functions are still there, but are reimplemented to
8142 work in terms of the new functions. Also, a set of functions
8143 to handle the internal storage of the configuration data is
8144 provided to make it easier to write new configuration file
8145 reader "classes" (I can definitely see something reading a
8146 configuration file in XML format, for example), called _CONF_*,
8147 or "the configuration storage API"...
8149 The new configuration file reading functions are:
8151 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8152 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8154 NCONF_default, NCONF_WIN32
8156 NCONF_dump_fp, NCONF_dump_bio
8158 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8159 NCONF_new creates a new CONF object. This works in the same way
8160 as other interfaces in OpenSSL, like the BIO interface.
8161 NCONF_dump_* dump the internal storage of the configuration file,
8162 which is useful for debugging. All other functions take the same
8163 arguments as the old CONF_* functions wth the exception of the
8164 first that must be a `CONF *' instead of a `LHASH *'.
8166 To make it easer to use the new classes with the old CONF_* functions,
8167 the function CONF_set_default_method is provided.
8170 *) Add '-tls1' option to 'openssl ciphers', which was already
8171 mentioned in the documentation but had not been implemented.
8172 (This option is not yet really useful because even the additional
8173 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8176 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8177 OpenSSL-based applications) load shared libraries and bind to
8178 them in a portable way.
8179 [Geoff Thorpe, with contributions from Richard Levitte]
8181 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8183 *) Make sure _lrotl and _lrotr are only used with MSVC.
8185 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8186 (the default implementation of RAND_status).
8188 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8189 to '-clrext' (= clear extensions), as intended and documented.
8190 [Bodo Moeller; inconsistency pointed out by Michael Attili
8193 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8194 was larger than the MD block size.
8195 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8197 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8198 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8199 using the passed key: if the passed key was a private key the result
8200 of X509_print(), for example, would be to print out all the private key
8204 *) des_quad_cksum() byte order bug fix.
8205 [Ulf Möller, using the problem description in krb4-0.9.7, where
8206 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8208 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8210 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8212 *) For easily testing in shell scripts whether some command
8213 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8214 returns with exit code 0 iff no command of the given name is available.
8215 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8216 the output goes to stdout and nothing is printed to stderr.
8217 Additional arguments are always ignored.
8219 Since for each cipher there is a command of the same name,
8220 the 'no-cipher' compilation switches can be tested this way.
8222 ('openssl no-XXX' is not able to detect pseudo-commands such
8223 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8226 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8229 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8230 is set; it will be thrown away anyway because each handshake creates
8232 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8233 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8234 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8235 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8238 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8239 'Q' and 'R' lose their special meanings (quit/renegotiate).
8240 This is part of what -quiet does; unlike -quiet, -ign_eof
8241 does not suppress any output.
8244 *) Add compatibility options to the purpose and trust code. The
8245 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8246 accepts a certificate or CA, this was the previous behaviour,
8247 with all the associated security issues.
8249 X509_TRUST_COMPAT is the old trust behaviour: only and
8250 automatically trust self signed roots in certificate store. A
8251 new trust setting X509_TRUST_DEFAULT is used to specify that
8252 a purpose has no associated trust setting and it should instead
8253 use the value in the default purpose.
8256 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8257 and fix a memory leak.
8260 *) In util/mkerr.pl (which implements 'make errors'), preserve
8261 reason strings from the previous version of the .c file, as
8262 the default to have only downcase letters (and digits) in
8263 automatically generated reasons codes is not always appropriate.
8266 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8267 using strerror. Previously, ERR_reason_error_string() returned
8268 library names as reason strings for SYSerr; but SYSerr is a special
8269 case where small numbers are errno values, not library numbers.
8272 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8273 converts DSA parameters into DH parameters. (When creating parameters,
8274 DSA_generate_parameters is used.)
8277 *) Include 'length' (recommended exponent length) in C code generated
8278 by 'openssl dhparam -C'.
8281 *) The second argument to set_label in perlasm was already being used
8282 so couldn't be used as a "file scope" flag. Moved to third argument
8286 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8287 instead of RAND_bytes for encryption IVs and salts.
8290 *) Include RAND_status() into RAND_METHOD instead of implementing
8291 it only for md_rand.c Otherwise replacing the PRNG by calling
8292 RAND_set_rand_method would be impossible.
8295 *) Don't let DSA_generate_key() enter an infinite loop if the random
8296 number generation fails.
8299 *) New 'rand' application for creating pseudo-random output.
8302 *) Added configuration support for Linux/IA64
8303 [Rolf Haberrecker <rolf@suse.de>]
8305 *) Assembler module support for Mingw32.
8308 *) Shared library support for HPUX (in shlib/).
8309 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8311 *) Shared library support for Solaris gcc.
8312 [Lutz Behnke <behnke@trustcenter.de>]
8314 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8316 *) PKCS7_encrypt() was adding text MIME headers twice because they
8317 were added manually and by SMIME_crlf_copy().
8320 *) In bntest.c don't call BN_rand with zero bits argument.
8321 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8323 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8324 case was implemented. This caused BN_div_recp() to fail occasionally.
8327 *) Add an optional second argument to the set_label() in the perl
8328 assembly language builder. If this argument exists and is set
8329 to 1 it signals that the assembler should use a symbol whose
8330 scope is the entire file, not just the current function. This
8331 is needed with MASM which uses the format label:: for this scope.
8332 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8334 *) Change the ASN1 types so they are typedefs by default. Before
8335 almost all types were #define'd to ASN1_STRING which was causing
8336 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
8340 *) Change names of new functions to the new get1/get0 naming
8341 convention: After 'get1', the caller owns a reference count
8342 and has to call ..._free; 'get0' returns a pointer to some
8343 data structure without incrementing reference counters.
8344 (Some of the existing 'get' functions increment a reference
8345 counter, some don't.)
8346 Similarly, 'set1' and 'add1' functions increase reference
8347 counters or duplicate objects.
8350 *) Allow for the possibility of temp RSA key generation failure:
8351 the code used to assume it always worked and crashed on failure.
8354 *) Fix potential buffer overrun problem in BIO_printf().
8355 [Ulf Möller, using public domain code by Patrick Powell; problem
8356 pointed out by David Sacerdote <das33@cornell.edu>]
8358 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
8359 RAND_egd() and RAND_status(). In the command line application,
8360 the EGD socket can be specified like a seed file using RANDFILE
8364 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
8365 Some CAs (e.g. Verisign) distribute certificates in this form.
8368 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
8369 list to exclude them. This means that no special compilation option
8370 is needed to use anonymous DH: it just needs to be included in the
8374 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
8375 EVP_MD_type. The old functionality is available in a new macro called
8376 EVP_MD_md(). Change code that uses it and update docs.
8379 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
8380 where the 'void *' argument is replaced by a function pointer argument.
8381 Previously 'void *' was abused to point to functions, which works on
8382 many platforms, but is not correct. As these functions are usually
8383 called by macros defined in OpenSSL header files, most source code
8384 should work without changes.
8387 *) <openssl/opensslconf.h> (which is created by Configure) now contains
8388 sections with information on -D... compiler switches used for
8389 compiling the library so that applications can see them. To enable
8390 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
8391 must be defined. E.g.,
8392 #define OPENSSL_ALGORITHM_DEFINES
8393 #include <openssl/opensslconf.h>
8394 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8395 [Richard Levitte, Ulf and Bodo Möller]
8397 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
8401 *) Change the 'other' type in certificate aux info to a STACK_OF
8402 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
8403 the required ASN1 format: arbitrary types determined by an OID.
8406 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
8407 argument to 'req'. This is not because the function is newer or
8408 better than others it just uses the work 'NEW' in the certificate
8409 request header lines. Some software needs this.
8412 *) Reorganise password command line arguments: now passwords can be
8413 obtained from various sources. Delete the PEM_cb function and make
8414 it the default behaviour: i.e. if the callback is NULL and the
8415 usrdata argument is not NULL interpret it as a null terminated pass
8416 phrase. If usrdata and the callback are NULL then the pass phrase
8417 is prompted for as usual.
8420 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
8421 the support is automatically enabled. The resulting binaries will
8422 autodetect the card and use it if present.
8423 [Ben Laurie and Compaq Inc.]
8425 *) Work around for Netscape hang bug. This sends certificate request
8426 and server done in one record. Since this is perfectly legal in the
8427 SSL/TLS protocol it isn't a "bug" option and is on by default. See
8428 the bugs/SSLv3 entry for more info.
8431 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
8434 *) Add -rand argument to smime and pkcs12 applications and read/write
8438 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
8441 *) Add command line password options to the remaining applications.
8444 *) Bug fix for BN_div_recp() for numerators with an even number of
8448 *) More tests in bntest.c, and changed test_bn output.
8451 *) ./config recognizes MacOS X now.
8454 *) Bug fix for BN_div() when the first words of num and divsor are
8455 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8458 *) Add support for various broken PKCS#8 formats, and command line
8459 options to produce them.
8462 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8463 get temporary BIGNUMs from a BN_CTX.
8466 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8470 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8471 include a #define from the old name to the new. The original intent
8472 was that statically linked binaries could for example just call
8473 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8474 link with digests. This never worked because SSLeay_add_all_digests()
8475 and SSLeay_add_all_ciphers() were in the same source file so calling
8476 one would link with the other. They are now in separate source files.
8479 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8482 *) Use a less unusual form of the Miller-Rabin primality test (it used
8483 a binary algorithm for exponentiation integrated into the Miller-Rabin
8484 loop, our standard modexp algorithms are faster).
8487 *) Support for the EBCDIC character set completed.
8488 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8490 *) Source code cleanups: use const where appropriate, eliminate casts,
8491 use void * instead of char * in lhash.
8494 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8495 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8496 this the server could overwrite ephemeral keys that the client
8500 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8501 using 50 iterations of the Rabin-Miller test.
8503 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8504 iterations of the Rabin-Miller test as required by the appendix
8505 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8506 As BN_is_prime_fasttest includes trial division, DSA parameter
8507 generation becomes much faster.
8509 This implies a change for the callback functions in DSA_is_prime
8510 and DSA_generate_parameters: The callback function is called once
8511 for each positive witness in the Rabin-Miller test, not just
8512 occasionally in the inner loop; and the parameters to the
8513 callback function now provide an iteration count for the outer
8514 loop rather than for the current invocation of the inner loop.
8515 DSA_generate_parameters additionally can call the callback
8516 function with an 'iteration count' of -1, meaning that a
8517 candidate has passed the trial division test (when q is generated
8518 from an application-provided seed, trial division is skipped).
8521 *) New function BN_is_prime_fasttest that optionally does trial
8522 division before starting the Rabin-Miller test and has
8523 an additional BN_CTX * argument (whereas BN_is_prime always
8524 has to allocate at least one BN_CTX).
8525 'callback(1, -1, cb_arg)' is called when a number has passed the
8526 trial division stage.
8529 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8533 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8536 *) New function BN_pseudo_rand().
8539 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8540 bignum version of BN_from_montgomery() with the working code from
8541 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8545 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8546 made it impossible to use the same SSL_SESSION data structure in
8547 SSL2 clients in multiple threads.
8550 *) The return value of RAND_load_file() no longer counts bytes obtained
8551 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8552 to seed the PRNG (previously an explicit byte count was required).
8553 [Ulf Möller, Bodo Möller]
8555 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8556 used (char *) instead of (void *) and had casts all over the place.
8559 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8562 *) Retain source code compatibility for BN_prime_checks macro:
8563 BN_is_prime(..., BN_prime_checks, ...) now uses
8564 BN_prime_checks_for_size to determine the appropriate number of
8565 Rabin-Miller iterations.
8568 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8569 DH_CHECK_P_NOT_SAFE_PRIME.
8570 (Check if this is true? OpenPGP calls them "strong".)
8573 *) Merge the functionality of "dh" and "gendh" programs into a new program
8574 "dhparam". The old programs are retained for now but will handle DH keys
8575 (instead of parameters) in future.
8578 *) Make the ciphers, s_server and s_client programs check the return values
8579 when a new cipher list is set.
8582 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8583 ciphers. Before when the 56bit ciphers were enabled the sorting was
8586 The syntax for the cipher sorting has been extended to support sorting by
8587 cipher-strength (using the strength_bits hard coded in the tables).
8588 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8590 Fix a bug in the cipher-command parser: when supplying a cipher command
8591 string with an "undefined" symbol (neither command nor alphanumeric
8592 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8593 an error is flagged.
8595 Due to the strength-sorting extension, the code of the
8596 ssl_create_cipher_list() function was completely rearranged. I hope that
8597 the readability was also increased :-)
8598 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8600 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8601 for the first serial number and places 2 in the serial number file. This
8602 avoids problems when the root CA is created with serial number zero and
8603 the first user certificate has the same issuer name and serial number
8607 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8608 the new code. Add documentation for this stuff.
8611 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8612 X509_*() to X509at_*() on the grounds that they don't handle X509
8613 structures and behave in an analogous way to the X509v3 functions:
8614 they shouldn't be called directly but wrapper functions should be used
8617 So we also now have some wrapper functions that call the X509at functions
8618 when passed certificate requests. (TO DO: similar things can be done with
8619 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8620 things. Some of these need some d2i or i2d and print functionality
8621 because they handle more complex structures.)
8624 *) Add missing #ifndefs that caused missing symbols when building libssl
8625 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8626 NO_RSA in ssl/s2*.c.
8627 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8629 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8630 has a return value which indicates the quality of the random data
8631 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8632 error queue. New function RAND_pseudo_bytes() generates output that is
8633 guaranteed to be unique but not unpredictable. RAND_add is like
8634 RAND_seed, but takes an extra argument for an entropy estimate
8635 (RAND_seed always assumes full entropy).
8638 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8639 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8640 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8641 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8642 false-positive rate of at most 2^-80 for random input.
8645 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8648 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8649 in the 0.9.5 release), this returns the chain
8650 from an X509_CTX structure with a dup of the stack and all
8651 the X509 reference counts upped: so the stack will exist
8652 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8655 Also make SSL_SESSION_print() print out the verify return
8659 *) Add manpage for the pkcs12 command. Also change the default
8660 behaviour so MAC iteration counts are used unless the new
8661 -nomaciter option is used. This improves file security and
8662 only older versions of MSIE (4.0 for example) need it.
8665 *) Honor the no-xxx Configure options when creating .DEF files.
8668 *) Add PKCS#10 attributes to field table: challengePassword,
8669 unstructuredName and unstructuredAddress. These are taken from
8670 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8671 international characters are used.
8673 More changes to X509_ATTRIBUTE code: allow the setting of types
8674 based on strings. Remove the 'loc' parameter when adding
8675 attributes because these will be a SET OF encoding which is sorted
8679 *) Initial changes to the 'req' utility to allow request generation
8680 automation. This will allow an application to just generate a template
8681 file containing all the field values and have req construct the
8684 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8685 used all over the place including certificate requests and PKCS#7
8686 structures. They are currently handled manually where necessary with
8687 some primitive wrappers for PKCS#7. The new functions behave in a
8688 manner analogous to the X509 extension functions: they allow
8689 attributes to be looked up by NID and added.
8691 Later something similar to the X509V3 code would be desirable to
8692 automatically handle the encoding, decoding and printing of the
8693 more complex types. The string types like challengePassword can
8694 be handled by the string table functions.
8696 Also modified the multi byte string table handling. Now there is
8697 a 'global mask' which masks out certain types. The table itself
8698 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8699 is useful when for example there is only one permissible type
8700 (as in countryName) and using the mask might result in no valid
8704 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8705 SSL_get_peer_finished to allow applications to obtain the latest
8706 Finished messages sent to the peer or expected from the peer,
8707 respectively. (SSL_get_peer_finished is usually the Finished message
8708 actually received from the peer, otherwise the protocol will be aborted.)
8710 As the Finished message are message digests of the complete handshake
8711 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8712 be used for external authentication procedures when the authentication
8713 provided by SSL/TLS is not desired or is not enough.
8716 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8717 the host supports BWX extension and if Compaq C is present on the
8718 $PATH. Just exploiting of the BWX extension results in 20-30%
8719 performance kick for some algorithms, e.g. DES and RC4 to mention
8720 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8724 *) Add support for MS "fast SGC". This is arguably a violation of the
8725 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8726 weak crypto and after checking the certificate is SGC a second one
8727 with strong crypto. MS SGC stops the first handshake after receiving
8728 the server certificate message and sends a second client hello. Since
8729 a server will typically do all the time consuming operations before
8730 expecting any further messages from the client (server key exchange
8731 is the most expensive) there is little difference between the two.
8733 To get OpenSSL to support MS SGC we have to permit a second client
8734 hello message after we have sent server done. In addition we have to
8735 reset the MAC if we do get this second client hello.
8738 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8739 if a DER encoded private key is RSA or DSA traditional format. Changed
8740 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8741 format DER encoded private key. Newer code should use PKCS#8 format which
8742 has the key type encoded in the ASN1 structure. Added DER private key
8743 support to pkcs8 application.
8746 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8747 ciphersuites has been selected (as required by the SSL 3/TLS 1
8748 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8749 is set, we interpret this as a request to violate the specification
8750 (the worst that can happen is a handshake failure, and 'correct'
8751 behaviour would result in a handshake failure anyway).
8754 *) In SSL_CTX_add_session, take into account that there might be multiple
8755 SSL_SESSION structures with the same session ID (e.g. when two threads
8756 concurrently obtain them from an external cache).
8757 The internal cache can handle only one SSL_SESSION with a given ID,
8758 so if there's a conflict, we now throw out the old one to achieve
8762 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8763 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8764 some routines that use cipher OIDs: some ciphers do not have OIDs
8765 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8769 *) Simplify the trust setting structure and code. Now we just have
8770 two sequences of OIDs for trusted and rejected settings. These will
8771 typically have values the same as the extended key usage extension
8772 and any application specific purposes.
8774 The trust checking code now has a default behaviour: it will just
8775 check for an object with the same NID as the passed id. Functions can
8776 be provided to override either the default behaviour or the behaviour
8777 for a given id. SSL client, server and email already have functions
8778 in place for compatibility: they check the NID and also return "trusted"
8779 if the certificate is self signed.
8782 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8783 traditional format into an EVP_PKEY structure.
8786 *) Add a password callback function PEM_cb() which either prompts for
8787 a password if usr_data is NULL or otherwise assumes it is a null
8788 terminated password. Allow passwords to be passed on command line
8789 environment or config files in a few more utilities.
8792 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8793 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8794 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8795 Update documentation.
8798 *) Support for ASN1 "NULL" type. This could be handled before by using
8799 ASN1_TYPE but there wasn't any function that would try to read a NULL
8800 and produce an error if it couldn't. For compatibility we also have
8801 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8802 don't allocate anything because they don't need to.
8805 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8807 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8809 *) Rebuild of the memory allocation routines used by OpenSSL code and
8810 possibly others as well. The purpose is to make an interface that
8811 provide hooks so anyone can build a separate set of allocation and
8812 deallocation routines to be used by OpenSSL, for example memory
8813 pool implementations, or something else, which was previously hard
8814 since Malloc(), Realloc() and Free() were defined as macros having
8815 the values malloc, realloc and free, respectively (except for Win32
8816 compilations). The same is provided for memory debugging code.
8817 OpenSSL already comes with functionality to find memory leaks, but
8818 this gives people a chance to debug other memory problems.
8820 With these changes, a new set of functions and macros have appeared:
8822 CRYPTO_set_mem_debug_functions() [F]
8823 CRYPTO_get_mem_debug_functions() [F]
8824 CRYPTO_dbg_set_options() [F]
8825 CRYPTO_dbg_get_options() [F]
8826 CRYPTO_malloc_debug_init() [M]
8828 The memory debug functions are NULL by default, unless the library
8829 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8830 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8831 gives the standard debugging functions that come with OpenSSL) or
8832 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8833 provided by the library user) must be used. When the standard
8834 debugging functions are used, CRYPTO_dbg_set_options can be used to
8835 request additional information:
8836 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8837 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8839 Also, things like CRYPTO_set_mem_functions will always give the
8840 expected result (the new set of functions is used for allocation
8841 and deallocation) at all times, regardless of platform and compiler
8844 To finish it up, some functions that were never use in any other
8845 way than through macros have a new API and new semantic:
8848 CRYPTO_dbg_realloc()
8851 All macros of value have retained their old syntax.
8852 [Richard Levitte and Bodo Moeller]
8854 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8855 ordering of SMIMECapabilities wasn't in "strength order" and there
8856 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8860 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8861 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8862 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8864 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8865 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8866 functionality to handle multipart/signed properly) and a utility
8867 called 'smime' to call all this stuff. This is based on code I
8868 originally wrote for Celo who have kindly allowed it to be
8869 included in OpenSSL.
8872 *) Add variants des_set_key_checked and des_set_key_unchecked of
8873 des_set_key (aka des_key_sched). Global variable des_check_key
8874 decides which of these is called by des_set_key; this way
8875 des_check_key behaves as it always did, but applications and
8876 the library itself, which was buggy for des_check_key == 1,
8877 have a cleaner way to pick the version they need.
8880 *) New function PKCS12_newpass() which changes the password of a
8884 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8885 dynamic mix. In both cases the ids can be used as an index into the
8886 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8887 functions so they accept a list of the field values and the
8888 application doesn't need to directly manipulate the X509_TRUST
8892 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8896 *) Modify the way the V3 extension code looks up extensions. This now
8897 works in a similar way to the object code: we have some "standard"
8898 extensions in a static table which is searched with OBJ_bsearch()
8899 and the application can add dynamic ones if needed. The file
8900 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8901 updated whenever a new extension is added to the core code and kept
8902 in ext_nid order. There is a simple program 'tabtest.c' which checks
8903 this. New extensions are not added too often so this file can readily
8904 be maintained manually.
8906 There are two big advantages in doing things this way. The extensions
8907 can be looked up immediately and no longer need to be "added" using
8908 X509V3_add_standard_extensions(): this function now does nothing.
8909 [Side note: I get *lots* of email saying the extension code doesn't
8910 work because people forget to call this function]
8911 Also no dynamic allocation is done unless new extensions are added:
8912 so if we don't add custom extensions there is no need to call
8913 X509V3_EXT_cleanup().
8916 *) Modify enc utility's salting as follows: make salting the default. Add a
8917 magic header, so unsalted files fail gracefully instead of just decrypting
8918 to garbage. This is because not salting is a big security hole, so people
8919 should be discouraged from doing it.
8922 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8923 digest to be passed on the command line but it only used this
8924 parameter when signing a certificate. Modified so all relevant
8925 operations are affected by the digest parameter including the
8926 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8927 DSA key was used because it didn't fix the digest.
8930 *) Initial certificate chain verify code. Currently tests the untrusted
8931 certificates for consistency with the verify purpose (which is set
8932 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8934 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8935 this is because it will reject chains with invalid extensions whereas
8936 every previous version of OpenSSL and SSLeay made no checks at all.
8938 Trust code: checks the root CA for the relevant trust settings. Trust
8939 settings have an initial value consistent with the verify purpose: e.g.
8940 if the verify purpose is for SSL client use it expects the CA to be
8941 trusted for SSL client use. However the default value can be changed to
8942 permit custom trust settings: one example of this would be to only trust
8943 certificates from a specific "secure" set of CAs.
8945 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8946 which should be used for version portability: especially since the
8947 verify structure is likely to change more often now.
8949 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8950 to set them. If not set then assume SSL clients will verify SSL servers
8953 Two new options to the verify program: -untrusted allows a set of
8954 untrusted certificates to be passed in and -purpose which sets the
8955 intended purpose of the certificate. If a purpose is set then the
8956 new chain verify code is used to check extension consistency.
8959 *) Support for the authority information access extension.
8962 *) Modify RSA and DSA PEM read routines to transparently handle
8963 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8964 public keys in a format compatible with certificate
8965 SubjectPublicKeyInfo structures. Unfortunately there were already
8966 functions called *_PublicKey_* which used various odd formats so
8967 these are retained for compatibility: however the DSA variants were
8968 never in a public release so they have been deleted. Changed dsa/rsa
8969 utilities to handle the new format: note no releases ever handled public
8970 keys so we should be OK.
8972 The primary motivation for this change is to avoid the same fiasco
8973 that dogs private keys: there are several incompatible private key
8974 formats some of which are standard and some OpenSSL specific and
8975 require various evil hacks to allow partial transparent handling and
8976 even then it doesn't work with DER formats. Given the option anything
8977 other than PKCS#8 should be dumped: but the other formats have to
8978 stay in the name of compatibility.
8980 With public keys and the benefit of hindsight one standard format
8981 is used which works with EVP_PKEY, RSA or DSA structures: though
8982 it clearly returns an error if you try to read the wrong kind of key.
8984 Added a -pubkey option to the 'x509' utility to output the public key.
8985 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8986 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8987 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8988 that do the same as the EVP_PKEY_assign_*() except they up the
8989 reference count of the added key (they don't "swallow" the
8993 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8994 CRLs would fail if the file contained no certificates or no CRLs:
8995 added a new function to read in both types and return the number
8996 read: this means that if none are read it will be an error. The
8997 DER versions of the certificate and CRL reader would always fail
8998 because it isn't possible to mix certificates and CRLs in DER format
8999 without choking one or the other routine. Changed this to just read
9000 a certificate: this is the best we can do. Also modified the code
9001 in apps/verify.c to take notice of return codes: it was previously
9002 attempting to read in certificates from NULL pointers and ignoring
9003 any errors: this is one reason why the cert and CRL reader seemed
9004 to work. It doesn't check return codes from the default certificate
9005 routines: these may well fail if the certificates aren't installed.
9008 *) Code to support otherName option in GeneralName.
9011 *) First update to verify code. Change the verify utility
9012 so it warns if it is passed a self signed certificate:
9013 for consistency with the normal behaviour. X509_verify
9014 has been modified to it will now verify a self signed
9015 certificate if *exactly* the same certificate appears
9016 in the store: it was previously impossible to trust a
9017 single self signed certificate. This means that:
9018 openssl verify ss.pem
9019 now gives a warning about a self signed certificate but
9020 openssl verify -CAfile ss.pem ss.pem
9024 *) For servers, store verify_result in SSL_SESSION data structure
9025 (and add it to external session representation).
9026 This is needed when client certificate verifications fails,
9027 but an application-provided verification callback (set by
9028 SSL_CTX_set_cert_verify_callback) allows accepting the session
9029 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9030 but returns 1): When the session is reused, we have to set
9031 ssl->verify_result to the appropriate error code to avoid
9033 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9035 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9036 case in PKCS7_dataInit() where the signed PKCS7 structure
9037 didn't contain any existing data because it was being created.
9038 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9040 *) Add a salt to the key derivation routines in enc.c. This
9041 forms the first 8 bytes of the encrypted file. Also add a
9042 -S option to allow a salt to be input on the command line.
9045 *) New function X509_cmp(). Oddly enough there wasn't a function
9046 to compare two certificates. We do this by working out the SHA1
9047 hash and comparing that. X509_cmp() will be needed by the trust
9051 *) SSL_get1_session() is like SSL_get_session(), but increments
9052 the reference count in the SSL_SESSION returned.
9053 [Geoff Thorpe <geoff@eu.c2.net>]
9055 *) Fix for 'req': it was adding a null to request attributes.
9056 Also change the X509_LOOKUP and X509_INFO code to handle
9057 certificate auxiliary information.
9060 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9064 *) Add the possibility to add extra information to the memory leak
9065 detecting output, to form tracebacks, showing from where each
9066 allocation was originated: CRYPTO_push_info("constant string") adds
9067 the string plus current file name and line number to a per-thread
9068 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9069 is like calling CYRPTO_pop_info() until the stack is empty.
9070 Also updated memory leak detection code to be multi-thread-safe.
9073 *) Add options -text and -noout to pkcs7 utility and delete the
9074 encryption options which never did anything. Update docs.
9077 *) Add options to some of the utilities to allow the pass phrase
9078 to be included on either the command line (not recommended on
9079 OSes like Unix) or read from the environment. Update the
9080 manpages and fix a few bugs.
9083 *) Add a few manpages for some of the openssl commands.
9086 *) Fix the -revoke option in ca. It was freeing up memory twice,
9087 leaking and not finding already revoked certificates.
9090 *) Extensive changes to support certificate auxiliary information.
9091 This involves the use of X509_CERT_AUX structure and X509_AUX
9092 functions. An X509_AUX function such as PEM_read_X509_AUX()
9093 can still read in a certificate file in the usual way but it
9094 will also read in any additional "auxiliary information". By
9095 doing things this way a fair degree of compatibility can be
9096 retained: existing certificates can have this information added
9097 using the new 'x509' options.
9099 Current auxiliary information includes an "alias" and some trust
9100 settings. The trust settings will ultimately be used in enhanced
9101 certificate chain verification routines: currently a certificate
9102 can only be trusted if it is self signed and then it is trusted
9106 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9107 The problem was that one of the replacement routines had not been working
9108 since SSLeay releases. For now the offending routine has been replaced
9109 with non-optimised assembler. Even so, this now gives around 95%
9110 performance improvement for 1024 bit RSA signs.
9113 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9114 handling. Most clients have the effective key size in bits equal to
9115 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9116 A few however don't do this and instead use the size of the decrypted key
9117 to determine the RC2 key length and the AlgorithmIdentifier to determine
9118 the effective key length. In this case the effective key length can still
9119 be 40 bits but the key length can be 168 bits for example. This is fixed
9120 by manually forcing an RC2 key into the EVP_PKEY structure because the
9121 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9122 the key length and effective key length are equal.
9125 *) Add a bunch of functions that should simplify the creation of
9126 X509_NAME structures. Now you should be able to do:
9127 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9128 and have it automatically work out the correct field type and fill in
9129 the structures. The more adventurous can try:
9130 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9131 and it will (hopefully) work out the correct multibyte encoding.
9134 *) Change the 'req' utility to use the new field handling and multibyte
9135 copy routines. Before the DN field creation was handled in an ad hoc
9136 way in req, ca, and x509 which was rather broken and didn't support
9137 BMPStrings or UTF8Strings. Since some software doesn't implement
9138 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9139 using the dirstring_type option. See the new comment in the default
9140 openssl.cnf for more info.
9143 *) Make crypto/rand/md_rand.c more robust:
9144 - Assure unique random numbers after fork().
9145 - Make sure that concurrent threads access the global counter and
9146 md serializably so that we never lose entropy in them
9147 or use exactly the same state in multiple threads.
9148 Access to the large state is not always serializable because
9149 the additional locking could be a performance killer, and
9150 md should be large enough anyway.
9153 *) New file apps/app_rand.c with commonly needed functionality
9154 for handling the random seed file.
9156 Use the random seed file in some applications that previously did not:
9158 dsaparam -genkey (which also ignored its '-rand' option),
9161 x509 (when signing).
9162 Except on systems with /dev/urandom, it is crucial to have a random
9163 seed file at least for key creation, DSA signing, and for DH exchanges;
9164 for RSA signatures we could do without one.
9166 gendh and gendsa (unlike genrsa) used to read only the first byte
9167 of each file listed in the '-rand' option. The function as previously
9168 found in genrsa is now in app_rand.c and is used by all programs
9169 that support '-rand'.
9172 *) In RAND_write_file, use mode 0600 for creating files;
9173 don't just chmod when it may be too late.
9176 *) Report an error from X509_STORE_load_locations
9177 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9180 *) New function ASN1_mbstring_copy() this copies a string in either
9181 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9182 into an ASN1_STRING type. A mask of permissible types is passed
9183 and it chooses the "minimal" type to use or an error if not type
9187 *) Add function equivalents to the various macros in asn1.h. The old
9188 macros are retained with an M_ prefix. Code inside the library can
9189 use the M_ macros. External code (including the openssl utility)
9190 should *NOT* in order to be "shared library friendly".
9193 *) Add various functions that can check a certificate's extensions
9194 to see if it usable for various purposes such as SSL client,
9195 server or S/MIME and CAs of these types. This is currently
9196 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9197 verification. Also added a -purpose flag to x509 utility to
9198 print out all the purposes.
9201 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9205 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9206 for, obtain and decode and extension and obtain its critical flag.
9207 This allows all the necessary extension code to be handled in a
9208 single function call.
9211 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9212 platforms. See crypto/rc4/rc4_enc.c for further details.
9215 *) New -noout option to asn1parse. This causes no output to be produced
9216 its main use is when combined with -strparse and -out to extract data
9217 from a file (which may not be in ASN.1 format).
9220 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9221 when producing the local key id.
9222 [Richard Levitte <levitte@stacken.kth.se>]
9224 *) New option -dhparam in s_server. This allows a DH parameter file to be
9225 stated explicitly. If it is not stated then it tries the first server
9226 certificate file. The previous behaviour hard coded the filename
9230 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9231 a public key to be input or output. For example:
9232 openssl rsa -in key.pem -pubout -out pubkey.pem
9233 Also added necessary DSA public key functions to handle this.
9236 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9237 in the message. This was handled by allowing
9238 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9239 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9241 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9242 to the end of the strings whereas this didn't. This would cause problems
9243 if strings read with d2i_ASN1_bytes() were later modified.
9244 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9246 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9247 data and it contains EOF it will end up returning an error. This is
9248 caused by input 46 bytes long. The cause is due to the way base64
9249 BIOs find the start of base64 encoded data. They do this by trying a
9250 trial decode on each line until they find one that works. When they
9251 do a flag is set and it starts again knowing it can pass all the
9252 data directly through the decoder. Unfortunately it doesn't reset
9253 the context it uses. This means that if EOF is reached an attempt
9254 is made to pass two EOFs through the context and this causes the
9255 resulting error. This can also cause other problems as well. As is
9256 usual with these problems it takes *ages* to find and the fix is
9257 trivial: move one line.
9258 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9260 *) Ugly workaround to get s_client and s_server working under Windows. The
9261 old code wouldn't work because it needed to select() on sockets and the
9262 tty (for keypresses and to see if data could be written). Win32 only
9263 supports select() on sockets so we select() with a 1s timeout on the
9264 sockets and then see if any characters are waiting to be read, if none
9265 are present then we retry, we also assume we can always write data to
9266 the tty. This isn't nice because the code then blocks until we've
9267 received a complete line of data and it is effectively polling the
9268 keyboard at 1s intervals: however it's quite a bit better than not
9269 working at all :-) A dedicated Windows application might handle this
9270 with an event loop for example.
9273 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9274 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9275 will be called when RSA_sign() and RSA_verify() are used. This is useful
9276 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9277 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9278 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9279 This necessitated the support of an extra signature type NID_md5_sha1
9280 for SSL signatures and modifications to the SSL library to use it instead
9281 of calling RSA_public_decrypt() and RSA_private_encrypt().
9284 *) Add new -verify -CAfile and -CApath options to the crl program, these
9285 will lookup a CRL issuers certificate and verify the signature in a
9286 similar way to the verify program. Tidy up the crl program so it
9287 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9288 less strict. It will now permit CRL extensions even if it is not
9289 a V2 CRL: this will allow it to tolerate some broken CRLs.
9292 *) Initialize all non-automatic variables each time one of the openssl
9293 sub-programs is started (this is necessary as they may be started
9294 multiple times from the "OpenSSL>" prompt).
9295 [Lennart Bang, Bodo Moeller]
9297 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9298 removing all other RSA functionality (this is what NO_RSA does). This
9299 is so (for example) those in the US can disable those operations covered
9300 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9304 *) Non-copying interface to BIO pairs.
9305 (still largely untested)
9308 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9309 ASCII string. This was handled independently in various places before.
9312 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9313 UTF8 strings a character at a time.
9316 *) Use client_version from client hello to select the protocol
9317 (s23_srvr.c) and for RSA client key exchange verification
9318 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9321 *) Add various utility functions to handle SPKACs, these were previously
9322 handled by poking round in the structure internals. Added new function
9323 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9324 print, verify and generate SPKACs. Based on an original idea from
9325 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9328 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9331 *) Allow the config file extension section to be overwritten on the
9332 command line. Based on an original idea from Massimiliano Pala
9333 <madwolf@comune.modena.it>. The new option is called -extensions
9334 and can be applied to ca, req and x509. Also -reqexts to override
9335 the request extensions in req and -crlexts to override the crl extensions
9339 *) Add new feature to the SPKAC handling in ca. Now you can include
9340 the same field multiple times by preceding it by "XXXX." for example:
9343 this is the same syntax as used in the req config file.
9346 *) Allow certificate extensions to be added to certificate requests. These
9347 are specified in a 'req_extensions' option of the req section of the
9348 config file. They can be printed out with the -text option to req but
9349 are otherwise ignored at present.
9352 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9353 data read consists of only the final block it would not decrypted because
9354 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
9355 A misplaced 'break' also meant the decrypted final block might not be
9356 copied until the next read.
9359 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
9360 a few extra parameters to the DH structure: these will be useful if
9361 for example we want the value of 'q' or implement X9.42 DH.
9364 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
9365 provides hooks that allow the default DSA functions or functions on a
9366 "per key" basis to be replaced. This allows hardware acceleration and
9367 hardware key storage to be handled without major modification to the
9368 library. Also added low level modexp hooks and CRYPTO_EX structure and
9369 associated functions.
9372 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
9373 as "read only": it can't be written to and the buffer it points to will
9374 not be freed. Reading from a read only BIO is much more efficient than
9375 a normal memory BIO. This was added because there are several times when
9376 an area of memory needs to be read from a BIO. The previous method was
9377 to create a memory BIO and write the data to it, this results in two
9378 copies of the data and an O(n^2) reading algorithm. There is a new
9379 function BIO_new_mem_buf() which creates a read only memory BIO from
9380 an area of memory. Also modified the PKCS#7 routines to use read only
9384 *) Bugfix: ssl23_get_client_hello did not work properly when called in
9385 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
9386 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
9387 but a retry condition occured while trying to read the rest.
9390 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
9391 NID_pkcs7_encrypted by default: this was wrong since this should almost
9392 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
9393 the encrypted data type: this is a more sensible place to put it and it
9394 allows the PKCS#12 code to be tidied up that duplicated this
9398 *) Changed obj_dat.pl script so it takes its input and output files on
9399 the command line. This should avoid shell escape redirection problems
9403 *) Initial support for certificate extension requests, these are included
9404 in things like Xenroll certificate requests. Included functions to allow
9405 extensions to be obtained and added.
9408 *) -crlf option to s_client and s_server for sending newlines as
9409 CRLF (as required by many protocols).
9412 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
9414 *) Install libRSAglue.a when OpenSSL is built with RSAref.
9415 [Ralf S. Engelschall]
9417 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
9418 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
9420 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
9424 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
9425 DH parameters/keys (q is lost during that conversion, but the resulting
9426 DH parameters contain its length).
9428 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
9429 much faster than DH_generate_parameters (which creates parameters
9430 where p = 2*q + 1), and also the smaller q makes DH computations
9431 much more efficient (160-bit exponentiation instead of 1024-bit
9432 exponentiation); so this provides a convenient way to support DHE
9433 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
9434 utter importance to use
9435 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9437 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9438 when such DH parameters are used, because otherwise small subgroup
9439 attacks may become possible!
9442 *) Avoid memory leak in i2d_DHparams.
9445 *) Allow the -k option to be used more than once in the enc program:
9446 this allows the same encrypted message to be read by multiple recipients.
9449 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
9450 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
9451 it will always use the numerical form of the OID, even if it has a short
9455 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9456 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9457 otherwise bn_mod_exp was called. In the case of hardware keys for example
9458 no private key components need be present and it might store extra data
9459 in the RSA structure, which cannot be accessed from bn_mod_exp.
9460 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9461 private key operations.
9464 *) Added support for SPARC Linux.
9467 *) pem_password_cb function type incompatibly changed from
9468 typedef int pem_password_cb(char *buf, int size, int rwflag);
9470 ....(char *buf, int size, int rwflag, void *userdata);
9471 so that applications can pass data to their callbacks:
9472 The PEM[_ASN1]_{read,write}... functions and macros now take an
9473 additional void * argument, which is just handed through whenever
9474 the password callback is called.
9475 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9477 New function SSL_CTX_set_default_passwd_cb_userdata.
9479 Compatibility note: As many C implementations push function arguments
9480 onto the stack in reverse order, the new library version is likely to
9481 interoperate with programs that have been compiled with the old
9482 pem_password_cb definition (PEM_whatever takes some data that
9483 happens to be on the stack as its last argument, and the callback
9484 just ignores this garbage); but there is no guarantee whatsoever that
9487 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9488 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9489 problems not only on Windows, but also on some Unix platforms.
9490 To avoid problematic command lines, these definitions are now in an
9491 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9492 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9495 *) MIPS III/IV assembler module is reimplemented.
9498 *) More DES library cleanups: remove references to srand/rand and
9499 delete an unused file.
9502 *) Add support for the the free Netwide assembler (NASM) under Win32,
9503 since not many people have MASM (ml) and it can be hard to obtain.
9504 This is currently experimental but it seems to work OK and pass all
9505 the tests. Check out INSTALL.W32 for info.
9508 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9509 without temporary keys kept an extra copy of the server key,
9510 and connections with temporary keys did not free everything in case
9514 *) New function RSA_check_key and new openssl rsa option -check
9515 for verifying the consistency of RSA keys.
9516 [Ulf Moeller, Bodo Moeller]
9518 *) Various changes to make Win32 compile work:
9519 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9520 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9521 comparison" warnings.
9522 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9525 *) Add a debugging option to PKCS#5 v2 key generation function: when
9526 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9527 derived keys are printed to stderr.
9530 *) Copy the flags in ASN1_STRING_dup().
9531 [Roman E. Pavlov <pre@mo.msk.ru>]
9533 *) The x509 application mishandled signing requests containing DSA
9534 keys when the signing key was also DSA and the parameters didn't match.
9536 It was supposed to omit the parameters when they matched the signing key:
9537 the verifying software was then supposed to automatically use the CA's
9538 parameters if they were absent from the end user certificate.
9540 Omitting parameters is no longer recommended. The test was also
9541 the wrong way round! This was probably due to unusual behaviour in
9542 EVP_cmp_parameters() which returns 1 if the parameters match.
9543 This meant that parameters were omitted when they *didn't* match and
9544 the certificate was useless. Certificates signed with 'ca' didn't have
9546 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9548 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9549 The interface is as follows:
9550 Applications can use
9551 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9552 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9553 "off" is now the default.
9554 The library internally uses
9555 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9556 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9557 to disable memory-checking temporarily.
9559 Some inconsistent states that previously were possible (and were
9560 even the default) are now avoided.
9562 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9563 with each memory chunk allocated; this is occasionally more helpful
9564 than just having a counter.
9566 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9568 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9572 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9573 which largely parallels "options", but is for changing API behaviour,
9574 whereas "options" are about protocol behaviour.
9575 Initial "mode" flags are:
9577 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9578 a single record has been written.
9579 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9580 retries use the same buffer location.
9581 (But all of the contents must be
9585 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9588 *) Fix problems with no-hmac etc.
9589 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9591 *) New functions RSA_get_default_method(), RSA_set_method() and
9592 RSA_get_method(). These allows replacement of RSA_METHODs without having
9593 to mess around with the internals of an RSA structure.
9596 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9597 Also really enable memory leak checks in openssl.c and in some
9599 [Chad C. Mulligan, Bodo Moeller]
9601 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9602 up the length of negative integers. This has now been simplified to just
9603 store the length when it is first determined and use it later, rather
9604 than trying to keep track of where data is copied and updating it to
9606 [Steve Henson, reported by Brien Wheeler
9607 <bwheeler@authentica-security.com>]
9609 *) Add a new function PKCS7_signatureVerify. This allows the verification
9610 of a PKCS#7 signature but with the signing certificate passed to the
9611 function itself. This contrasts with PKCS7_dataVerify which assumes the
9612 certificate is present in the PKCS#7 structure. This isn't always the
9613 case: certificates can be omitted from a PKCS#7 structure and be
9614 distributed by "out of band" means (such as a certificate database).
9617 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9618 function prototypes in pem.h, also change util/mkdef.pl to add the
9619 necessary function names.
9622 *) mk1mf.pl (used by Windows builds) did not properly read the
9623 options set by Configure in the top level Makefile, and Configure
9624 was not even able to write more than one option correctly.
9625 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9628 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9629 file to be loaded from a BIO or FILE pointer. The BIO version will
9630 for example allow memory BIOs to contain config info.
9633 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9634 Whoever hopes to achieve shared-library compatibility across versions
9635 must use this, not the compile-time macro.
9636 (Exercise 0.9.4: Which is the minimum library version required by
9638 Note: All this applies only to multi-threaded programs, others don't
9642 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9643 through a BIO pair triggered the default case, i.e.
9644 SSLerr(...,SSL_R_UNKNOWN_STATE).
9647 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9648 can use the SSL library even if none of the specific BIOs is
9652 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9653 for the encoded length.
9654 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9656 *) Add initial documentation of the X509V3 functions.
9659 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9660 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9661 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9662 secure PKCS#8 private key format with a high iteration count.
9665 *) Fix determination of Perl interpreter: A perl or perl5
9666 _directory_ in $PATH was also accepted as the interpreter.
9667 [Ralf S. Engelschall]
9669 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9670 wrong with it but it was very old and did things like calling
9671 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9675 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9676 to use the new extension code.
9679 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9680 with macros. This should make it easier to change their form, add extra
9681 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9685 *) Add to configuration table a new entry that can specify an alternative
9686 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9687 according to Mark Crispin <MRC@Panda.COM>.
9691 *) DES CBC did not update the IV. Weird.
9694 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9695 Changing the behaviour of the former might break existing programs --
9696 where IV updating is needed, des_ncbc_encrypt can be used.
9699 *) When bntest is run from "make test" it drives bc to check its
9700 calculations, as well as internally checking them. If an internal check
9701 fails, it needs to cause bc to give a non-zero result or make test carries
9702 on without noticing the failure. Fixed.
9705 *) DES library cleanups.
9708 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9709 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9710 ciphers. NOTE: although the key derivation function has been verified
9711 against some published test vectors it has not been extensively tested
9712 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9716 *) Instead of "mkdir -p", which is not fully portable, use new
9717 Perl script "util/mkdir-p.pl".
9720 *) Rewrite the way password based encryption (PBE) is handled. It used to
9721 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9722 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9723 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9724 the 'parameter' field of the AlgorithmIdentifier is passed to the
9725 underlying key generation function so it must do its own ASN1 parsing.
9726 This has also changed the EVP_PBE_CipherInit() function which now has a
9727 'parameter' argument instead of literal salt and iteration count values
9728 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9731 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9732 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9733 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9734 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9735 value was just used as a "magic string" and not used directly its
9736 value doesn't matter.
9739 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9743 *) "linux-sparc64" configuration (ultrapenguin).
9744 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9745 "linux-sparc" configuration.
9746 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9748 *) config now generates no-xxx options for missing ciphers.
9751 *) Support the EBCDIC character set (work in progress).
9752 File ebcdic.c not yet included because it has a different license.
9753 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9755 *) Support BS2000/OSD-POSIX.
9756 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9758 *) Make callbacks for key generation use void * instead of char *.
9761 *) Make S/MIME samples compile (not yet tested).
9764 *) Additional typesafe stacks.
9767 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9771 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9773 *) New configuration variant "sco5-gcc".
9775 *) Updated some demos.
9776 [Sean O Riordain, Wade Scholine]
9778 *) Add missing BIO_free at exit of pkcs12 application.
9781 *) Fix memory leak in conf.c.
9784 *) Updates for Win32 to assembler version of MD5.
9787 *) Set #! path to perl in apps/der_chop to where we found it
9788 instead of using a fixed path.
9791 *) SHA library changes for irix64-mips4-cc.
9794 *) Improvements for VMS support.
9798 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9800 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9801 This also avoids the problems with SC4.2 and unpatched SC5.
9802 [Andy Polyakov <appro@fy.chalmers.se>]
9804 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9805 These are required because of the typesafe stack would otherwise break
9806 existing code. If old code used a structure member which used to be STACK
9807 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9808 sk_num or sk_value it would produce an error because the num, data members
9809 are not present in STACK_OF. Now it just produces a warning. sk_set
9810 replaces the old method of assigning a value to sk_value
9811 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9812 that does this will no longer work (and should use sk_set instead) but
9813 this could be regarded as a "questionable" behaviour anyway.
9816 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9817 correctly handle encrypted S/MIME data.
9820 *) Change type of various DES function arguments from des_cblock
9821 (which means, in function argument declarations, pointer to char)
9822 to des_cblock * (meaning pointer to array with 8 char elements),
9823 which allows the compiler to do more typechecking; it was like
9824 that back in SSLeay, but with lots of ugly casts.
9826 Introduce new type const_des_cblock.
9829 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9830 problems: find RecipientInfo structure that matches recipient certificate
9831 and initialise the ASN1 structures properly based on passed cipher.
9834 *) Belatedly make the BN tests actually check the results.
9837 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9838 to and from BNs: it was completely broken. New compilation option
9839 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9840 key elements as negative integers.
9843 *) Reorganize and speed up MD5.
9844 [Andy Polyakov <appro@fy.chalmers.se>]
9847 [Richard Levitte <richard@levitte.org>]
9849 *) New option -out to asn1parse to allow the parsed structure to be
9850 output to a file. This is most useful when combined with the -strparse
9851 option to examine the output of things like OCTET STRINGS.
9854 *) Make SSL library a little more fool-proof by not requiring any longer
9855 that SSL_set_{accept,connect}_state be called before
9856 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9857 in many applications because usually everything *appeared* to work as
9858 intended anyway -- now it really works as intended).
9861 *) Move openssl.cnf out of lib/.
9864 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9865 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9866 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9867 [Ralf S. Engelschall]
9869 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9870 handle PKCS#7 enveloped data properly.
9871 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9873 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9874 copying pointers. The cert_st handling is changed by this in
9875 various ways (and thus what used to be known as ctx->default_cert
9876 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9877 any longer when s->cert does not give us what we need).
9878 ssl_cert_instantiate becomes obsolete by this change.
9879 As soon as we've got the new code right (possibly it already is?),
9880 we have solved a couple of bugs of the earlier code where s->cert
9881 was used as if it could not have been shared with other SSL structures.
9883 Note that using the SSL API in certain dirty ways now will result
9884 in different behaviour than observed with earlier library versions:
9885 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9886 does not influence s as it used to.
9888 In order to clean up things more thoroughly, inside SSL_SESSION
9889 we don't use CERT any longer, but a new structure SESS_CERT
9890 that holds per-session data (if available); currently, this is
9891 the peer's certificate chain and, for clients, the server's certificate
9892 and temporary key. CERT holds only those values that can have
9893 meaningful defaults in an SSL_CTX.
9896 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9897 from the internal representation. Various PKCS#7 fixes: remove some
9898 evil casts and set the enc_dig_alg field properly based on the signing
9902 *) Allow PKCS#12 password to be set from the command line or the
9903 environment. Let 'ca' get its config file name from the environment
9904 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9908 *) Allow certificate policies extension to use an IA5STRING for the
9909 organization field. This is contrary to the PKIX definition but
9910 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9914 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9915 without disallowing inline assembler and the like for non-pedantic builds.
9918 *) Support Borland C++ builder.
9919 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9924 *) SHA-1 cleanups and performance enhancements.
9925 [Andy Polyakov <appro@fy.chalmers.se>]
9927 *) Sparc v8plus assembler for the bignum library.
9928 [Andy Polyakov <appro@fy.chalmers.se>]
9930 *) Accept any -xxx and +xxx compiler options in Configure.
9933 *) Update HPUX configuration.
9936 *) Add missing sk_<type>_unshift() function to safestack.h
9937 [Ralf S. Engelschall]
9939 *) New function SSL_CTX_use_certificate_chain_file that sets the
9940 "extra_cert"s in addition to the certificate. (This makes sense
9941 only for "PEM" format files, as chains as a whole are not
9945 *) Support verify_depth from the SSL API.
9946 x509_vfy.c had what can be considered an off-by-one-error:
9947 Its depth (which was not part of the external interface)
9948 was actually counting the number of certificates in a chain;
9949 now it really counts the depth.
9952 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9953 instead of X509err, which often resulted in confusing error
9954 messages since the error codes are not globally unique
9955 (e.g. an alleged error in ssl3_accept when a certificate
9956 didn't match the private key).
9958 *) New function SSL_CTX_set_session_id_context that allows to set a default
9959 value (so that you don't need SSL_set_session_id_context for each
9960 connection using the SSL_CTX).
9963 *) OAEP decoding bug fix.
9966 *) Support INSTALL_PREFIX for package builders, as proposed by
9970 *) New Configure options "threads" and "no-threads". For systems
9971 where the proper compiler options are known (currently Solaris
9972 and Linux), "threads" is the default.
9975 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9978 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9979 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9980 such as /usr/local/bin.
9983 *) "make linux-shared" to build shared libraries.
9984 [Niels Poppe <niels@netbox.org>]
9986 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9989 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9990 extension adding in x509 utility.
9993 *) Remove NOPROTO sections and error code comments.
9996 *) Partial rewrite of the DEF file generator to now parse the ANSI
10000 *) New Configure options --prefix=DIR and --openssldir=DIR.
10003 *) Complete rewrite of the error code script(s). It is all now handled
10004 by one script at the top level which handles error code gathering,
10005 header rewriting and C source file generation. It should be much better
10006 than the old method: it now uses a modified version of Ulf's parser to
10007 read the ANSI prototypes in all header files (thus the old K&R definitions
10008 aren't needed for error creation any more) and do a better job of
10009 translating function codes into names. The old 'ASN1 error code imbedded
10010 in a comment' is no longer necessary and it doesn't use .err files which
10011 have now been deleted. Also the error code call doesn't have to appear all
10012 on one line (which resulted in some large lines...).
10015 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10018 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10019 0 (which usually indicates a closed connection), but continue reading.
10022 *) Fix some race conditions.
10025 *) Add support for CRL distribution points extension. Add Certificate
10026 Policies and CRL distribution points documentation.
10029 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10032 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10033 8 of keying material. Merlin has also confirmed interop with this fix
10034 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10035 [Merlin Hughes <merlin@baltimore.ie>]
10037 *) Fix lots of warnings.
10038 [Richard Levitte <levitte@stacken.kth.se>]
10040 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10041 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10042 [Richard Levitte <levitte@stacken.kth.se>]
10044 *) Fix problems with sizeof(long) == 8.
10045 [Andy Polyakov <appro@fy.chalmers.se>]
10047 *) Change functions to ANSI C.
10050 *) Fix typos in error codes.
10051 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10053 *) Remove defunct assembler files from Configure.
10056 *) SPARC v8 assembler BIGNUM implementation.
10057 [Andy Polyakov <appro@fy.chalmers.se>]
10059 *) Support for Certificate Policies extension: both print and set.
10060 Various additions to support the r2i method this uses.
10063 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10064 return a const string when you are expecting an allocated buffer.
10067 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10068 types DirectoryString and DisplayText.
10071 *) Add code to allow r2i extensions to access the configuration database,
10072 add an LHASH database driver and add several ctx helper functions.
10075 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10076 fail when they extended the size of a BIGNUM.
10079 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10080 support typesafe stack.
10083 *) Fix typo in SSL_[gs]et_options().
10084 [Nils Frostberg <nils@medcom.se>]
10086 *) Delete various functions and files that belonged to the (now obsolete)
10087 old X509V3 handling code.
10090 *) New Configure option "rsaref".
10093 *) Don't auto-generate pem.h.
10096 *) Introduce type-safe ASN.1 SETs.
10099 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10100 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10102 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10103 that links with OpenSSL (well at least cause lots of warnings), but fear
10104 not: the conversion is trivial, and it eliminates loads of evil casts. A
10105 few STACKed things have been converted already. Feel free to convert more.
10106 In the fullness of time, I'll do away with the STACK type altogether.
10109 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10110 specified in <certfile> by updating the entry in the index.txt file.
10111 This way one no longer has to edit the index.txt file manually for
10112 revoking a certificate. The -revoke option does the gory details now.
10113 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10115 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10116 `-text' option at all and this way the `-noout -text' combination was
10117 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10118 [Ralf S. Engelschall]
10120 *) Make sure a corresponding plain text error message exists for the
10121 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10122 verify callback function determined that a certificate was revoked.
10123 [Ralf S. Engelschall]
10125 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10126 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10127 all available cipers including rc5, which was forgotten until now.
10128 In order to let the testing shell script know which algorithms
10129 are available, a new (up to now undocumented) command
10130 "openssl list-cipher-commands" is used.
10133 *) Bugfix: s_client occasionally would sleep in select() when
10134 it should have checked SSL_pending() first.
10137 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10138 the raw DSA values prior to ASN.1 encoding.
10141 *) Tweaks to Configure
10142 [Niels Poppe <niels@netbox.org>]
10144 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10148 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10151 *) New config option to avoid instructions that are illegal on the 80386.
10152 The default code is faster, but requires at least a 486.
10155 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10156 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10157 same as SSL2_VERSION anyway.
10160 *) New "-showcerts" option for s_client.
10163 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10164 application. Various cleanups and fixes.
10167 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10168 modify error routines to work internally. Add error codes and PBE init
10169 to library startup routines.
10172 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10173 packing functions to asn1 and evp. Changed function names and error
10174 codes along the way.
10177 *) PKCS12 integration: and so it begins... First of several patches to
10178 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10179 objects to objects.h
10182 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10183 and display support for Thawte strong extranet extension.
10186 *) Add LinuxPPC support.
10187 [Jeff Dubrule <igor@pobox.org>]
10189 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10190 bn_div_words in alpha.s.
10191 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10193 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10194 OAEP isn't supported when OpenSSL is built with RSAref.
10195 [Ulf Moeller <ulf@fitug.de>]
10197 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10198 so they no longer are missing under -DNOPROTO.
10199 [Soren S. Jorvang <soren@t.dk>]
10202 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10204 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10205 doesn't work when the session is reused. Coming soon!
10208 *) Fix a security hole, that allows sessions to be reused in the wrong
10209 context thus bypassing client cert protection! All software that uses
10210 client certs and session caches in multiple contexts NEEDS PATCHING to
10211 allow session reuse! A fuller solution is in the works.
10212 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10214 *) Some more source tree cleanups (removed obsolete files
10215 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10216 permission on "config" script to be executable) and a fix for the INSTALL
10218 [Ulf Moeller <ulf@fitug.de>]
10220 *) Remove some legacy and erroneous uses of malloc, free instead of
10222 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10224 *) Make rsa_oaep_test return non-zero on error.
10225 [Ulf Moeller <ulf@fitug.de>]
10227 *) Add support for native Solaris shared libraries. Configure
10228 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10229 if someone would make that last step automatic.
10230 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10232 *) ctx_size was not built with the right compiler during "make links". Fixed.
10235 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10236 except NULL ciphers". This means the default cipher list will no longer
10237 enable NULL ciphers. They need to be specifically enabled e.g. with
10238 the string "DEFAULT:eNULL".
10241 *) Fix to RSA private encryption routines: if p < q then it would
10242 occasionally produce an invalid result. This will only happen with
10243 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10246 *) Be less restrictive and allow also `perl util/perlpath.pl
10247 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10248 because this way one can also use an interpreter named `perl5' (which is
10249 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10250 installed as `perl').
10251 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10253 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10254 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10256 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10257 advapi32.lib to Win32 build and change the pem test comparison
10258 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10259 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10260 and crypto/des/ede_cbcm_enc.c.
10263 *) DES quad checksum was broken on big-endian architectures. Fixed.
10266 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10267 Win32 test batch file so it (might) work again. The Win32 test batch file
10268 is horrible: I feel ill....
10271 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10272 in e_os.h. Audit of header files to check ANSI and non ANSI
10273 sections: 10 functions were absent from non ANSI section and not exported
10274 from Windows DLLs. Fixed up libeay.num for new functions.
10277 *) Make `openssl version' output lines consistent.
10278 [Ralf S. Engelschall]
10280 *) Fix Win32 symbol export lists for BIO functions: Added
10281 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10282 to ms/libeay{16,32}.def.
10283 [Ralf S. Engelschall]
10285 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10286 fine under Unix and passes some trivial tests I've now added. But the
10287 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10288 added to make sure no one expects that this stuff really works in the
10289 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10290 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10292 [Ralf S. Engelschall]
10294 *) Fix the generation of two part addresses in perl.
10295 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10297 *) Add config entry for Linux on MIPS.
10298 [John Tobey <jtobey@channel1.com>]
10300 *) Make links whenever Configure is run, unless we are on Windoze.
10303 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10304 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10308 *) Add a useful kludge to allow package maintainers to specify compiler and
10309 other platforms details on the command line without having to patch the
10310 Configure script everytime: One now can use ``perl Configure
10311 <id>:<details>'', i.e. platform ids are allowed to have details appended
10312 to them (separated by colons). This is treated as there would be a static
10313 pre-configured entry in Configure's %table under key <id> with value
10314 <details> and ``perl Configure <id>'' is called. So, when you want to
10315 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10316 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10317 now, which overrides the FreeBSD-elf entry on-the-fly.
10318 [Ralf S. Engelschall]
10320 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10323 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10324 on the `perl Configure ...' command line. This way one can compile
10325 OpenSSL libraries with Position Independent Code (PIC) which is needed
10326 for linking it into DSOs.
10327 [Ralf S. Engelschall]
10329 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10333 *) Cleaned up the LICENSE document: The official contact for any license
10334 questions now is the OpenSSL core team under openssl-core@openssl.org.
10335 And add a paragraph about the dual-license situation to make sure people
10336 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
10337 to the OpenSSL toolkit.
10338 [Ralf S. Engelschall]
10340 *) General source tree makefile cleanups: Made `making xxx in yyy...'
10341 display consistent in the source tree and replaced `/bin/rm' by `rm'.
10342 Additionally cleaned up the `make links' target: Remove unnecessary
10343 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
10344 to speed processing and no longer clutter the display with confusing
10345 stuff. Instead only the actually done links are displayed.
10346 [Ralf S. Engelschall]
10348 *) Permit null encryption ciphersuites, used for authentication only. It used
10349 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
10350 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
10354 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
10355 signed attributes when verifying signatures (this would break them),
10356 the detached data encoding was wrong and public keys obtained using
10357 X509_get_pubkey() weren't freed.
10360 *) Add text documentation for the BUFFER functions. Also added a work around
10361 to a Win95 console bug. This was triggered by the password read stuff: the
10362 last character typed gets carried over to the next fread(). If you were
10363 generating a new cert request using 'req' for example then the last
10364 character of the passphrase would be CR which would then enter the first
10368 *) Added the new `Includes OpenSSL Cryptography Software' button as
10369 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
10370 button and can be used by applications based on OpenSSL to show the
10371 relationship to the OpenSSL project.
10372 [Ralf S. Engelschall]
10374 *) Remove confusing variables in function signatures in files
10375 ssl/ssl_lib.c and ssl/ssl.h.
10376 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10378 *) Don't install bss_file.c under PREFIX/include/
10379 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10381 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
10382 functions that return function pointers and has support for NT specific
10383 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
10384 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
10385 unsigned to signed types: this was killing the Win32 compile.
10388 *) Add new certificate file to stack functions,
10389 SSL_add_dir_cert_subjects_to_stack() and
10390 SSL_add_file_cert_subjects_to_stack(). These largely supplant
10391 SSL_load_client_CA_file(), and can be used to add multiple certs easily
10392 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10393 This means that Apache-SSL and similar packages don't have to mess around
10394 to add as many CAs as they want to the preferred list.
10397 *) Experiment with doxygen documentation. Currently only partially applied to
10399 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
10400 openssl.doxy as the configuration file.
10403 *) Get rid of remaining C++-style comments which strict C compilers hate.
10404 [Ralf S. Engelschall, pointed out by Carlos Amengual]
10406 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
10407 compiled in by default: it has problems with large keys.
10410 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
10411 DH private keys and/or callback functions which directly correspond to
10412 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
10413 is needed for applications which have to configure certificates on a
10414 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
10416 For the RSA certificate situation is makes no difference, but
10417 for the DSA certificate situation this fixes the "no shared cipher"
10418 problem where the OpenSSL cipher selection procedure failed because the
10419 temporary keys were not overtaken from the context and the API provided
10420 no way to reconfigure them.
10421 The new functions now let applications reconfigure the stuff and they
10422 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
10423 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
10424 non-public-API function ssl_cert_instantiate() is used as a helper
10425 function and also to reduce code redundancy inside ssl_rsa.c.
10426 [Ralf S. Engelschall]
10428 *) Move s_server -dcert and -dkey options out of the undocumented feature
10429 area because they are useful for the DSA situation and should be
10430 recognized by the users.
10431 [Ralf S. Engelschall]
10433 *) Fix the cipher decision scheme for export ciphers: the export bits are
10434 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
10435 SSL_EXP_MASK. So, the original variable has to be used instead of the
10436 already masked variable.
10437 [Richard Levitte <levitte@stacken.kth.se>]
10439 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
10440 [Richard Levitte <levitte@stacken.kth.se>]
10442 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
10443 from `int' to `unsigned int' because it's a length and initialized by
10444 EVP_DigestFinal() which expects an `unsigned int *'.
10445 [Richard Levitte <levitte@stacken.kth.se>]
10447 *) Don't hard-code path to Perl interpreter on shebang line of Configure
10448 script. Instead use the usual Shell->Perl transition trick.
10449 [Ralf S. Engelschall]
10451 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
10452 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10453 -noout -modulus' as it's already the case for `openssl rsa -noout
10454 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10455 currently the public key is printed (a decision which was already done by
10456 `openssl dsa -modulus' in the past) which serves a similar purpose.
10457 Additionally the NO_RSA no longer completely removes the whole -modulus
10458 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10460 [Ralf S. Engelschall]
10462 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10463 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10464 [Arne Ansper <arne@ats.cyber.ee>]
10466 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10467 to be added. Now both 'req' and 'ca' can use new objects defined in the
10471 *) Add cool BIO that does syslog (or event log on NT).
10472 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10474 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10475 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10476 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10477 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10480 *) Add preliminary config info for new extension code.
10483 *) Make RSA_NO_PADDING really use no padding.
10484 [Ulf Moeller <ulf@fitug.de>]
10486 *) Generate errors when private/public key check is done.
10489 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10490 for some CRL extensions and new objects added.
10493 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10494 key usage extension and fuller support for authority key id.
10497 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10498 padding method for RSA, which is recommended for new applications in PKCS
10499 #1 v2.0 (RFC 2437, October 1998).
10500 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10501 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10502 against Bleichbacher's attack on RSA.
10503 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10506 *) Updates to the new SSL compression code
10507 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10509 *) Fix so that the version number in the master secret, when passed
10510 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10511 (because the server will not accept higher), that the version number
10512 is 0x03,0x01, not 0x03,0x00
10513 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10515 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10516 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10517 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10520 *) Support for RAW extensions where an arbitrary extension can be
10521 created by including its DER encoding. See apps/openssl.cnf for
10525 *) Make sure latest Perl versions don't interpret some generated C array
10526 code as Perl array code in the crypto/err/err_genc.pl script.
10527 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10529 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10530 not many people have the assembler. Various Win32 compilation fixes and
10531 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10532 build instructions.
10535 *) Modify configure script 'Configure' to automatically create crypto/date.h
10536 file under Win32 and also build pem.h from pem.org. New script
10537 util/mkfiles.pl to create the MINFO file on environments that can't do a
10538 'make files': perl util/mkfiles.pl >MINFO should work.
10541 *) Major rework of DES function declarations, in the pursuit of correctness
10542 and purity. As a result, many evil casts evaporated, and some weirdness,
10543 too. You may find this causes warnings in your code. Zapping your evil
10544 casts will probably fix them. Mostly.
10547 *) Fix for a typo in asn1.h. Bug fix to object creation script
10548 obj_dat.pl. It considered a zero in an object definition to mean
10549 "end of object": none of the objects in objects.h have any zeros
10550 so it wasn't spotted.
10551 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10553 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10554 Masking (CBCM). In the absence of test vectors, the best I have been able
10555 to do is check that the decrypt undoes the encrypt, so far. Send me test
10556 vectors if you have them.
10559 *) Correct calculation of key length for export ciphers (too much space was
10560 allocated for null ciphers). This has not been tested!
10563 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10564 message is now correct (it understands "crypto" and "ssl" on its
10565 command line). There is also now an "update" option. This will update
10566 the util/ssleay.num and util/libeay.num files with any new functions.
10568 perl util/mkdef.pl crypto ssl update
10569 it will update them.
10572 *) Overhauled the Perl interface (perl/*):
10573 - ported BN stuff to OpenSSL's different BN library
10574 - made the perl/ source tree CVS-aware
10575 - renamed the package from SSLeay to OpenSSL (the files still contain
10576 their history because I've copied them in the repository)
10577 - removed obsolete files (the test scripts will be replaced
10578 by better Test::Harness variants in the future)
10579 [Ralf S. Engelschall]
10581 *) First cut for a very conservative source tree cleanup:
10582 1. merge various obsolete readme texts into doc/ssleay.txt
10583 where we collect the old documents and readme texts.
10584 2. remove the first part of files where I'm already sure that we no
10585 longer need them because of three reasons: either they are just temporary
10586 files which were left by Eric or they are preserved original files where
10587 I've verified that the diff is also available in the CVS via "cvs diff
10588 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10589 the crypto/md/ stuff).
10590 [Ralf S. Engelschall]
10592 *) More extension code. Incomplete support for subject and issuer alt
10593 name, issuer and authority key id. Change the i2v function parameters
10594 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10595 what that's for :-) Fix to ASN1 macro which messed up
10596 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10599 *) Preliminary support for ENUMERATED type. This is largely copied from the
10603 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10604 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10606 *) Make sure `make rehash' target really finds the `openssl' program.
10607 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10609 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10610 like to hear about it if this slows down other processors.
10613 *) Add CygWin32 platform information to Configure script.
10614 [Alan Batie <batie@aahz.jf.intel.com>]
10616 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10617 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10619 *) New program nseq to manipulate netscape certificate sequences
10622 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10626 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10627 but the BN code had some problems that would cause failures when
10628 doing certificate verification and some other functions.
10629 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10631 *) Add ASN1 and PEM code to support netscape certificate sequences.
10634 *) Add ASN1 and PEM code to support netscape certificate sequences.
10637 *) Add several PKIX and private extended key usage OIDs.
10640 *) Modify the 'ca' program to handle the new extension code. Modify
10641 openssl.cnf for new extension format, add comments.
10644 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10645 and add a sample to openssl.cnf so req -x509 now adds appropriate
10649 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10650 error code, add initial support to X509_print() and x509 application.
10653 *) Takes a deep breath and start adding X509 V3 extension support code. Add
10654 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10655 stuff is currently isolated and isn't even compiled yet.
10658 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10659 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10660 Removed the versions check from X509 routines when loading extensions:
10661 this allows certain broken certificates that don't set the version
10662 properly to be processed.
10665 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10666 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10667 can still be regenerated with "make depend".
10670 *) Spelling mistake in C version of CAST-128.
10671 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10673 *) Changes to the error generation code. The perl script err-code.pl
10674 now reads in the old error codes and retains the old numbers, only
10675 adding new ones if necessary. It also only changes the .err files if new
10676 codes are added. The makefiles have been modified to only insert errors
10677 when needed (to avoid needlessly modifying header files). This is done
10678 by only inserting errors if the .err file is newer than the auto generated
10679 C file. To rebuild all the error codes from scratch (the old behaviour)
10680 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10681 or delete all the .err files.
10684 *) CAST-128 was incorrectly implemented for short keys. The C version has
10685 been fixed, but is untested. The assembler versions are also fixed, but
10686 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10687 to regenerate it if needed.
10688 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10689 Hagino <itojun@kame.net>]
10691 *) File was opened incorrectly in randfile.c.
10692 [Ulf Möller <ulf@fitug.de>]
10694 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10695 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10696 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10697 al: it's just almost always a UTCTime. Note this patch adds new error
10698 codes so do a "make errors" if there are problems.
10701 *) Correct Linux 1 recognition in config.
10702 [Ulf Möller <ulf@fitug.de>]
10704 *) Remove pointless MD5 hash when using DSA keys in ca.
10705 [Anonymous <nobody@replay.com>]
10707 *) Generate an error if given an empty string as a cert directory. Also
10708 generate an error if handed NULL (previously returned 0 to indicate an
10709 error, but didn't set one).
10710 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10712 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10715 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10716 parameters. This was causing a warning which killed off the Win32 compile.
10719 *) Remove C++ style comments from crypto/bn/bn_local.h.
10720 [Neil Costigan <neil.costigan@celocom.com>]
10722 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10723 based on a text string, looking up short and long names and finally
10724 "dot" format. The "dot" format stuff didn't work. Added new function
10725 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10726 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10727 OID is not part of the table.
10730 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10731 X509_LOOKUP_by_alias().
10734 *) Sort openssl functions by name.
10737 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10738 encryption from sample DSA keys (in case anyone is interested the password
10742 *) Make _all_ *_free functions accept a NULL pointer.
10743 [Frans Heymans <fheymans@isaserver.be>]
10745 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10747 [Anonymous <nobody@replay.com>]
10749 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10750 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10752 *) Don't blow it for numeric -newkey arguments to apps/req.
10753 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10755 *) Temp key "for export" tests were wrong in s3_srvr.c.
10756 [Anonymous <nobody@replay.com>]
10758 *) Add prototype for temp key callback functions
10759 SSL_CTX_set_tmp_{rsa,dh}_callback().
10762 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10763 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10766 *) X509_name_add_entry() freed the wrong thing after an error.
10767 [Arne Ansper <arne@ats.cyber.ee>]
10769 *) rsa_eay.c would attempt to free a NULL context.
10770 [Arne Ansper <arne@ats.cyber.ee>]
10772 *) BIO_s_socket() had a broken should_retry() on Windoze.
10773 [Arne Ansper <arne@ats.cyber.ee>]
10775 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10776 [Arne Ansper <arne@ats.cyber.ee>]
10778 *) Make sure the already existing X509_STORE->depth variable is initialized
10779 in X509_STORE_new(), but document the fact that this variable is still
10780 unused in the certificate verification process.
10781 [Ralf S. Engelschall]
10783 *) Fix the various library and apps files to free up pkeys obtained from
10784 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10787 *) Fix reference counting in X509_PUBKEY_get(). This makes
10788 demos/maurice/example2.c work, amongst others, probably.
10789 [Steve Henson and Ben Laurie]
10791 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10792 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10793 are no longer created. This way we have a single and consistent command
10794 line interface `openssl <command>', similar to `cvs <command>'.
10795 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10797 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10798 BIT STRING wrapper always have zero unused bits.
10801 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10804 *) Make the top-level INSTALL documentation easier to understand.
10807 *) Makefiles updated to exit if an error occurs in a sub-directory
10808 make (including if user presses ^C) [Paul Sutton]
10810 *) Make Montgomery context stuff explicit in RSA data structure.
10813 *) Fix build order of pem and err to allow for generated pem.h.
10816 *) Fix renumbering bug in X509_NAME_delete_entry().
10819 *) Enhanced the err-ins.pl script so it makes the error library number
10820 global and can add a library name. This is needed for external ASN1 and
10821 other error libraries.
10824 *) Fixed sk_insert which never worked properly.
10827 *) Fix ASN1 macros so they can handle indefinite length constructed
10828 EXPLICIT tags. Some non standard certificates use these: they can now
10832 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10833 into a single doc/ssleay.txt bundle. This way the information is still
10834 preserved but no longer messes up this directory. Now it's new room for
10835 the new set of documentation files.
10836 [Ralf S. Engelschall]
10838 *) SETs were incorrectly DER encoded. This was a major pain, because they
10839 shared code with SEQUENCEs, which aren't coded the same. This means that
10840 almost everything to do with SETs or SEQUENCEs has either changed name or
10841 number of arguments.
10842 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10844 *) Fix test data to work with the above.
10847 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10848 was already fixed by Eric for 0.9.1 it seems.
10849 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10851 *) Autodetect FreeBSD3.
10854 *) Fix various bugs in Configure. This affects the following platforms:
10858 unixware-2.0-pentium
10862 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10863 before they are needed.
10866 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10870 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10872 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10873 changed SSLeay to OpenSSL in version strings.
10874 [Ralf S. Engelschall]
10876 *) Some fixups to the top-level documents.
10879 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10880 because the symlink to include/ was missing.
10881 [Ralf S. Engelschall]
10883 *) Incorporated the popular no-RSA/DSA-only patches
10884 which allow to compile a RSA-free SSLeay.
10885 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10887 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10888 when "ssleay" is still not found.
10889 [Ralf S. Engelschall]
10891 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10892 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10894 *) Updated the README file.
10895 [Ralf S. Engelschall]
10897 *) Added various .cvsignore files in the CVS repository subdirs
10898 to make a "cvs update" really silent.
10899 [Ralf S. Engelschall]
10901 *) Recompiled the error-definition header files and added
10902 missing symbols to the Win32 linker tables.
10903 [Ralf S. Engelschall]
10905 *) Cleaned up the top-level documents;
10906 o new files: CHANGES and LICENSE
10907 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10908 o merged COPYRIGHT into LICENSE
10909 o removed obsolete TODO file
10910 o renamed MICROSOFT to INSTALL.W32
10911 [Ralf S. Engelschall]
10913 *) Removed dummy files from the 0.9.1b source tree:
10914 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10915 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10916 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10917 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10918 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10919 [Ralf S. Engelschall]
10921 *) Added various platform portability fixes.
10924 *) The Genesis of the OpenSSL rpject:
10925 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10926 Young and Tim J. Hudson created while they were working for C2Net until
10928 [The OpenSSL Project]
10931 Changes between 0.9.0b and 0.9.1b [not released]
10933 *) Updated a few CA certificates under certs/
10936 *) Changed some BIGNUM api stuff.
10939 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10940 DGUX x86, Linux Alpha, etc.
10943 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10944 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10948 *) Add -strparse option to asn1pars program which parses nested
10950 [Dr Stephen Henson <shenson@bigfoot.com>]
10952 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10955 *) DSA fix for "ca" program.
10958 *) Added "-genkey" option to "dsaparam" program.
10961 *) Added RIPE MD160 (rmd160) message digest.
10964 *) Added -a (all) option to "ssleay version" command.
10967 *) Added PLATFORM define which is the id given to Configure.
10970 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10973 *) Extended the ASN.1 parser routines.
10976 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10979 *) Added a BN_CTX to the BN library.
10982 *) Fixed the weak key values in DES library
10985 *) Changed API in EVP library for cipher aliases.
10988 *) Added support for RC2/64bit cipher.
10991 *) Converted the lhash library to the crypto/mem.c functions.
10994 *) Added more recognized ASN.1 object ids.
10997 *) Added more RSA padding checks for SSL/TLS.
11000 *) Added BIO proxy/filter functionality.
11003 *) Added extra_certs to SSL_CTX which can be used
11004 send extra CA certificates to the client in the CA cert chain sending
11005 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11008 *) Now Fortezza is denied in the authentication phase because
11009 this is key exchange mechanism is not supported by SSLeay at all.
11012 *) Additional PKCS1 checks.
11015 *) Support the string "TLSv1" for all TLS v1 ciphers.
11018 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11019 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11022 *) Fixed a few memory leaks.
11025 *) Fixed various code and comment typos.
11028 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11029 bytes sent in the client random.
11030 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob