5 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
7 *) Add support for TLS/DTLS heartbeats.
8 [Robin Seggelmann <seggelmann@fh-muenster.de>]
10 *) Add support for SCTP.
11 [Robin Seggelmann <seggelmann@fh-muenster.de>]
13 *) Prevent malformed RFC3779 data triggering an assertion failure.
14 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
15 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
16 [Rob Austein <sra@hactrn.net>]
18 *) Improved PRNG seeding for VOS.
19 [Paul Green <Paul.Green@stratus.com>]
21 *) Extensive assembler packs updates, most notably:
23 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
24 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
25 - x86_64: bit-sliced AES implementation;
26 - ARM: NEON support, contemporary platforms optimizations;
27 - s390x: z196 support;
28 - *: GHASH and GF(2^m) multiplication implementations;
32 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
33 (removal of unnecessary code)
34 [Peter Sylvester <peter.sylvester@edelweb.fr>]
36 *) Add TLS key material exporter from RFC 5705.
39 *) Add DTLS-SRTP negotiation from RFC 5764.
42 *) Add Next Protocol Negotiation,
43 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
44 disabled with a no-npn flag to config or Configure. Code donated
46 [Adam Langley <agl@google.com> and Ben Laurie]
48 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
49 NIST-P256, NIST-P521, with constant-time single point multiplication on
50 typical inputs. Compiler support for the nonstandard type __uint128_t is
51 required to use this (present in gcc 4.4 and later, for 64-bit builds).
52 Code made available under Apache License version 2.0.
54 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
55 line to include this in your build of OpenSSL, and run "make depend" (or
56 "make update"). This enables the following EC_METHODs:
58 EC_GFp_nistp224_method()
59 EC_GFp_nistp256_method()
60 EC_GFp_nistp521_method()
62 EC_GROUP_new_by_curve_name() will automatically use these (while
63 EC_GROUP_new_curve_GFp() currently prefers the more flexible
65 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
67 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
68 all platforms. Move ssize_t definition from e_os.h to the public
69 header file e_os2.h as it now appears in public header file cms.h
72 *) New -sigopt option to the ca, req and x509 utilities. Additional
73 signature parameters can be passed using this option and in
77 *) Add RSA PSS signing function. This will generate and set the
78 appropriate AlgorithmIdentifiers for PSS based on those in the
79 corresponding EVP_MD_CTX structure. No application support yet.
82 *) Support for companion algorithm specific ASN1 signing routines.
83 New function ASN1_item_sign_ctx() signs a pre-initialised
84 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
85 the appropriate parameters.
88 *) Add new algorithm specific ASN1 verification initialisation function
89 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
90 handling will be the same no matter what EVP_PKEY_METHOD is used.
91 Add a PSS handler to support verification of PSS signatures: checked
92 against a number of sample certificates.
95 *) Add signature printing for PSS. Add PSS OIDs.
96 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
98 *) Add algorithm specific signature printing. An individual ASN1 method
99 can now print out signatures instead of the standard hex dump.
101 More complex signatures (e.g. PSS) can print out more meaningful
102 information. Include DSA version that prints out the signature
106 *) Password based recipient info support for CMS library: implementing
110 *) Split password based encryption into PBES2 and PBKDF2 functions. This
111 neatly separates the code into cipher and PBE sections and is required
112 for some algorithms that split PBES2 into separate pieces (such as
116 *) Session-handling fixes:
117 - Fix handling of connections that are resuming with a session ID,
118 but also support Session Tickets.
119 - Fix a bug that suppressed issuing of a new ticket if the client
120 presented a ticket with an expired session.
121 - Try to set the ticket lifetime hint to something reasonable.
122 - Make tickets shorter by excluding irrelevant information.
123 - On the client side, don't ignore renewed tickets.
124 [Adam Langley, Bodo Moeller (Google)]
126 *) Fix PSK session representation.
129 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
131 This work was sponsored by Intel.
134 *) Add GCM support to TLS library. Some custom code is needed to split
135 the IV between the fixed (from PRF) and explicit (from TLS record)
136 portions. This adds all GCM ciphersuites supported by RFC5288 and
137 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
138 add a special AESGCM string for GCM only.
141 *) Expand range of ctrls for AES GCM. Permit setting invocation
142 field on decrypt and retrieval of invocation field only on encrypt.
145 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
146 As required by RFC5289 these ciphersuites cannot be used if for
147 versions of TLS earlier than 1.2.
150 *) For FIPS capable OpenSSL interpret a NULL default public key method
151 as unset and return the appopriate default but do *not* set the default.
152 This means we can return the appopriate method in applications that
153 swicth between FIPS and non-FIPS modes.
156 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
157 ENGINE is used then we cannot handle that in the FIPS module so we
158 keep original code iff non-FIPS operations are allowed.
161 *) Add -attime option to openssl utilities.
162 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
164 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
167 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
168 FIPS EC methods unconditionally for now.
171 *) New build option no-ec2m to disable characteristic 2 code.
174 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
175 all cases can be covered as some introduce binary incompatibilities.
178 *) Redirect RSA operations to FIPS module including keygen,
179 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
182 *) Add similar low level API blocking to ciphers.
185 *) Low level digest APIs are not approved in FIPS mode: any attempt
186 to use these will cause a fatal error. Applications that *really* want
187 to use them can use the private_* version instead.
190 *) Redirect cipher operations to FIPS module for FIPS builds.
193 *) Redirect digest operations to FIPS module for FIPS builds.
196 *) Update build system to add "fips" flag which will link in fipscanister.o
197 for static and shared library builds embedding a signature if needed.
200 *) Output TLS supported curves in preference order instead of numerical
201 order. This is currently hardcoded for the highest order curves first.
202 This should be configurable so applications can judge speed vs strength.
205 *) Add TLS v1.2 server support for client authentication.
208 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
212 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
213 FIPS modules versions.
216 *) Add TLS v1.2 client side support for client authentication. Keep cache
217 of handshake records longer as we don't know the hash algorithm to use
218 until after the certificate request message is received.
221 *) Initial TLS v1.2 client support. Add a default signature algorithms
222 extension including all the algorithms we support. Parse new signature
223 format in client key exchange. Relax some ECC signing restrictions for
224 TLS v1.2 as indicated in RFC5246.
227 *) Add server support for TLS v1.2 signature algorithms extension. Switch
228 to new signature format when needed using client digest preference.
229 All server ciphersuites should now work correctly in TLS v1.2. No client
230 support yet and no support for client certificates.
233 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
234 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
235 ciphersuites. At present only RSA key exchange ciphersuites work with
236 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
237 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
238 and version checking.
241 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
242 with this defined it will not be affected by any changes to ssl internal
243 structures. Add several utility functions to allow openssl application
244 to work with OPENSSL_NO_SSL_INTERN defined.
248 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
250 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
253 *) Permit abbreviated handshakes when renegotiating using the function
254 SSL_renegotiate_abbreviated().
255 [Robin Seggelmann <seggelmann@fh-muenster.de>]
257 *) Add call to ENGINE_register_all_complete() to
258 ENGINE_load_builtin_engines(), so some implementations get used
259 automatically instead of needing explicit application support.
262 *) Add support for TLS key exporter as described in RFC5705.
263 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
265 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
266 a few changes are required:
268 Add SSL_OP_NO_TLSv1_1 flag.
270 Update version checking logic to handle version 1.1.
271 Add explicit IV handling (ported from DTLS code).
272 Add command line options to s_client/s_server.
275 Changes between 1.0.0e and 1.0.0f [xx XXX xxxx]
277 *) Fix ssl_ciph.c set-up race.
278 [Adam Langley (Google)]
280 *) Fix spurious failures in ecdsatest.c.
281 [Emilia Käsper (Google)]
283 *) Fix the BIO_f_buffer() implementation (which was mixing different
284 interpretations of the '..._len' fields).
285 [Adam Langley (Google)]
287 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
288 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
289 threads won't reuse the same blinding coefficients.
291 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
292 lock to call BN_BLINDING_invert_ex, and avoids one use of
293 BN_BLINDING_update for each BN_BLINDING structure (previously,
294 the last update always remained unused).
295 [Emilia Käsper (Google)]
297 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
298 [Bob Buckholz (Google)]
300 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
302 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
303 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
304 [Kaspar Brand <ossl@velox.ch>]
306 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
307 for multi-threaded use of ECDH. (CVE-2011-3210)
308 [Adam Langley (Google)]
310 *) Fix x509_name_ex_d2i memory leak on bad inputs.
313 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
314 signature public key algorithm by using OID xref utilities instead.
315 Before this you could only use some ECC ciphersuites with SHA1 only.
318 *) Add protection against ECDSA timing attacks as mentioned in the paper
319 by Billy Bob Brumley and Nicola Tuveri, see:
321 http://eprint.iacr.org/2011/232.pdf
323 [Billy Bob Brumley and Nicola Tuveri]
325 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
327 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
328 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
330 *) Fix bug in string printing code: if *any* escaping is enabled we must
331 escape the escape character (backslash) or the resulting string is
335 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
337 *) Disable code workaround for ancient and obsolete Netscape browsers
338 and servers: an attacker can use it in a ciphersuite downgrade attack.
339 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
342 *) Fixed J-PAKE implementation error, originally discovered by
343 Sebastien Martini, further info and confirmation from Stefan
344 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
347 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
349 *) Fix extension code to avoid race conditions which can result in a buffer
350 overrun vulnerability: resumed sessions must not be modified as they can
351 be shared by multiple threads. CVE-2010-3864
354 *) Fix WIN32 build system to correctly link an ENGINE directory into
358 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
360 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
362 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
364 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
366 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
367 context. The operation can be customised via the ctrl mechanism in
368 case ENGINEs want to include additional functionality.
371 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
374 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
375 output hashes compatible with older versions of OpenSSL.
376 [Willy Weisz <weisz@vcpc.univie.ac.at>]
378 *) Fix compression algorithm handling: if resuming a session use the
379 compression algorithm of the resumed session instead of determining
380 it from client hello again. Don't allow server to change algorithm.
383 *) Add load_crls() function to apps tidying load_certs() too. Add option
384 to verify utility to allow additional CRLs to be included.
387 *) Update OCSP request code to permit adding custom headers to the request:
388 some responders need this.
391 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
393 [Julia Lawall <julia@diku.dk>]
395 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
396 needlessly dereferenced structures, used obsolete functions and
397 didn't handle all updated verify codes correctly.
400 *) Disable MD2 in the default configuration.
403 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
404 indicate the initial BIO being pushed or popped. This makes it possible
405 to determine whether the BIO is the one explicitly called or as a result
406 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
407 it handles reference counts correctly and doesn't zero out the I/O bio
408 when it is not being explicitly popped. WARNING: applications which
409 included workarounds for the old buggy behaviour will need to be modified
410 or they could free up already freed BIOs.
413 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
414 renaming to all platforms (within the 0.9.8 branch, this was
415 done conditionally on Netware platforms to avoid a name clash).
416 [Guenter <lists@gknw.net>]
418 *) Add ECDHE and PSK support to DTLS.
419 [Michael Tuexen <tuexen@fh-muenster.de>]
421 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
425 *) Add "missing" function EVP_MD_flags() (without this the only way to
426 retrieve a digest flags is by accessing the structure directly. Update
427 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
428 or cipher is registered as in the "from" argument. Print out all
429 registered digests in the dgst usage message instead of manually
430 attempting to work them out.
433 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
434 this allows the use of compression and extensions. Change default cipher
435 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
436 by default unless an application cipher string requests it.
439 *) Alter match criteria in PKCS12_parse(). It used to try to use local
440 key ids to find matching certificates and keys but some PKCS#12 files
441 don't follow the (somewhat unwritten) rules and this strategy fails.
442 Now just gather all certificates together and the first private key
443 then look for the first certificate that matches the key.
446 *) Support use of registered digest and cipher names for dgst and cipher
447 commands instead of having to add each one as a special case. So now
454 openssl dgst -sha256 foo
456 and this works for ENGINE based algorithms too.
460 *) Update Gost ENGINE to support parameter files.
461 [Victor B. Wagner <vitus@cryptocom.ru>]
463 *) Support GeneralizedTime in ca utility.
464 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
466 *) Enhance the hash format used for certificate directory links. The new
467 form uses the canonical encoding (meaning equivalent names will work
468 even if they aren't identical) and uses SHA1 instead of MD5. This form
469 is incompatible with the older format and as a result c_rehash should
470 be used to rebuild symbolic links.
473 *) Make PKCS#8 the default write format for private keys, replacing the
474 traditional format. This form is standardised, more secure and doesn't
475 include an implicit MD5 dependency.
478 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
479 committed to OpenSSL should pass this lot as a minimum.
482 *) Add session ticket override functionality for use by EAP-FAST.
483 [Jouni Malinen <j@w1.fi>]
485 *) Modify HMAC functions to return a value. Since these can be implemented
486 in an ENGINE errors can occur.
489 *) Type-checked OBJ_bsearch_ex.
492 *) Type-checked OBJ_bsearch. Also some constification necessitated
493 by type-checking. Still to come: TXT_DB, bsearch(?),
494 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
498 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
499 seconds to a tm structure directly, instead of going through OS
500 specific date routines. This avoids any issues with OS routines such
501 as the year 2038 bug. New *_adj() functions for ASN1 time structures
502 and X509_time_adj_ex() to cover the extended range. The existing
503 X509_time_adj() is still usable and will no longer have any date issues.
506 *) Delta CRL support. New use deltas option which will attempt to locate
507 and search any appropriate delta CRLs available.
509 This work was sponsored by Google.
512 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
513 code and add additional score elements. Validate alternate CRL paths
514 as part of the CRL checking and indicate a new error "CRL path validation
515 error" in this case. Applications wanting additional details can use
516 the verify callback and check the new "parent" field. If this is not
517 NULL CRL path validation is taking place. Existing applications wont
518 see this because it requires extended CRL support which is off by
521 This work was sponsored by Google.
524 *) Support for freshest CRL extension.
526 This work was sponsored by Google.
529 *) Initial indirect CRL support. Currently only supported in the CRLs
530 passed directly and not via lookup. Process certificate issuer
531 CRL entry extension and lookup CRL entries by bother issuer name
532 and serial number. Check and process CRL issuer entry in IDP extension.
534 This work was sponsored by Google.
537 *) Add support for distinct certificate and CRL paths. The CRL issuer
538 certificate is validated separately in this case. Only enabled if
539 an extended CRL support flag is set: this flag will enable additional
540 CRL functionality in future.
542 This work was sponsored by Google.
545 *) Add support for policy mappings extension.
547 This work was sponsored by Google.
550 *) Fixes to pathlength constraint, self issued certificate handling,
551 policy processing to align with RFC3280 and PKITS tests.
553 This work was sponsored by Google.
556 *) Support for name constraints certificate extension. DN, email, DNS
557 and URI types are currently supported.
559 This work was sponsored by Google.
562 *) To cater for systems that provide a pointer-based thread ID rather
563 than numeric, deprecate the current numeric thread ID mechanism and
564 replace it with a structure and associated callback type. This
565 mechanism allows a numeric "hash" to be extracted from a thread ID in
566 either case, and on platforms where pointers are larger than 'long',
567 mixing is done to help ensure the numeric 'hash' is usable even if it
568 can't be guaranteed unique. The default mechanism is to use "&errno"
569 as a pointer-based thread ID to distinguish between threads.
571 Applications that want to provide their own thread IDs should now use
572 CRYPTO_THREADID_set_callback() to register a callback that will call
573 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
575 Note that ERR_remove_state() is now deprecated, because it is tied
576 to the assumption that thread IDs are numeric. ERR_remove_state(0)
577 to free the current thread's error state should be replaced by
578 ERR_remove_thread_state(NULL).
580 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
581 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
582 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
583 application was previously providing a numeric thread callback that
584 was inappropriate for distinguishing threads, then uniqueness might
585 have been obtained with &errno that happened immediately in the
586 intermediate development versions of OpenSSL; this is no longer the
587 case, the numeric thread callback will now override the automatic use
589 [Geoff Thorpe, with help from Bodo Moeller]
591 *) Initial support for different CRL issuing certificates. This covers a
592 simple case where the self issued certificates in the chain exist and
593 the real CRL issuer is higher in the existing chain.
595 This work was sponsored by Google.
598 *) Removed effectively defunct crypto/store from the build.
601 *) Revamp of STACK to provide stronger type-checking. Still to come:
602 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
603 ASN1_STRING, CONF_VALUE.
606 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
607 RAM on SSL connections. This option can save about 34k per idle SSL.
610 *) Revamp of LHASH to provide stronger type-checking. Still to come:
611 STACK, TXT_DB, bsearch, qsort.
614 *) Initial support for Cryptographic Message Syntax (aka CMS) based
615 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
616 support for data, signedData, compressedData, digestedData and
617 encryptedData, envelopedData types included. Scripts to check against
618 RFC4134 examples draft and interop and consistency checks of many
619 content types and variants.
622 *) Add options to enc utility to support use of zlib compression BIO.
625 *) Extend mk1mf to support importing of options and assembly language
626 files from Configure script, currently only included in VC-WIN32.
627 The assembly language rules can now optionally generate the source
628 files from the associated perl scripts.
631 *) Implement remaining functionality needed to support GOST ciphersuites.
632 Interop testing has been performed using CryptoPro implementations.
633 [Victor B. Wagner <vitus@cryptocom.ru>]
635 *) s390x assembler pack.
638 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
642 *) Implement Opaque PRF Input TLS extension as specified in
643 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
644 official specification yet and no extension type assignment by
645 IANA exists, this extension (for now) will have to be explicitly
646 enabled when building OpenSSL by providing the extension number
647 to use. For example, specify an option
649 -DTLSEXT_TYPE_opaque_prf_input=0x9527
651 to the "config" or "Configure" script to enable the extension,
652 assuming extension number 0x9527 (which is a completely arbitrary
653 and unofficial assignment based on the MD5 hash of the Internet
654 Draft). Note that by doing so, you potentially lose
655 interoperability with other TLS implementations since these might
656 be using the same extension number for other purposes.
658 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
659 opaque PRF input value to use in the handshake. This will create
660 an interal copy of the length-'len' string at 'src', and will
661 return non-zero for success.
663 To get more control and flexibility, provide a callback function
666 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
667 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
671 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
674 Callback function 'cb' will be called in handshakes, and is
675 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
676 Argument 'arg' is for application purposes (the value as given to
677 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
678 be provided to the callback function). The callback function
679 has to return non-zero to report success: usually 1 to use opaque
680 PRF input just if possible, or 2 to enforce use of the opaque PRF
681 input. In the latter case, the library will abort the handshake
682 if opaque PRF input is not successfully negotiated.
684 Arguments 'peerinput' and 'len' given to the callback function
685 will always be NULL and 0 in the case of a client. A server will
686 see the client's opaque PRF input through these variables if
687 available (NULL and 0 otherwise). Note that if the server
688 provides an opaque PRF input, the length must be the same as the
689 length of the client's opaque PRF input.
691 Note that the callback function will only be called when creating
692 a new session (session resumption can resume whatever was
693 previously negotiated), and will not be called in SSL 2.0
694 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
695 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
696 for applications that need to enforce opaque PRF input.
700 *) Update ssl code to support digests other than SHA1+MD5 for handshake
703 [Victor B. Wagner <vitus@cryptocom.ru>]
705 *) Add RFC4507 support to OpenSSL. This includes the corrections in
706 RFC4507bis. The encrypted ticket format is an encrypted encoded
707 SSL_SESSION structure, that way new session features are automatically
710 If a client application caches session in an SSL_SESSION structure
711 support is transparent because tickets are now stored in the encoded
714 The SSL_CTX structure automatically generates keys for ticket
715 protection in servers so again support should be possible
716 with no application modification.
718 If a client or server wishes to disable RFC4507 support then the option
719 SSL_OP_NO_TICKET can be set.
721 Add a TLS extension debugging callback to allow the contents of any client
722 or server extensions to be examined.
724 This work was sponsored by Google.
727 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
728 OpenSSL should now compile cleanly on gcc 4.2
729 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
731 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
732 support including streaming MAC support: this is required for GOST
734 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
736 *) Add option -stream to use PKCS#7 streaming in smime utility. New
737 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
738 to output in BER and PEM format.
741 *) Experimental support for use of HMAC via EVP_PKEY interface. This
742 allows HMAC to be handled via the EVP_DigestSign*() interface. The
743 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
744 ENGINE support for HMAC keys which are unextractable. New -mac and
745 -macopt options to dgst utility.
748 *) New option -sigopt to dgst utility. Update dgst to use
749 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
750 alternative signing paramaters such as X9.31 or PSS in the dgst
754 *) Change ssl_cipher_apply_rule(), the internal function that does
755 the work each time a ciphersuite string requests enabling
756 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
757 removing ("!foo+bar") a class of ciphersuites: Now it maintains
758 the order of disabled ciphersuites such that those ciphersuites
759 that most recently went from enabled to disabled not only stay
760 in order with respect to each other, but also have higher priority
761 than other disabled ciphersuites the next time ciphersuites are
764 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
765 the same ciphersuites as with "HIGH" alone, but in a specific
766 order where the PSK ciphersuites come first (since they are the
767 most recently disabled ciphersuites when "HIGH" is parsed).
769 Also, change ssl_create_cipher_list() (using this new
770 funcionality) such that between otherwise identical
771 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
775 *) Change ssl_create_cipher_list() so that it automatically
776 arranges the ciphersuites in reasonable order before starting
777 to process the rule string. Thus, the definition for "DEFAULT"
778 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
779 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
780 This makes it much easier to arrive at a reasonable default order
781 in applications for which anonymous ciphers are OK (meaning
782 that you can't actually use DEFAULT).
783 [Bodo Moeller; suggested by Victor Duchovni]
785 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
786 processing) into multiple integers instead of setting
787 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
788 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
789 (These masks as well as the individual bit definitions are hidden
790 away into the non-exported interface ssl/ssl_locl.h, so this
791 change to the definition of the SSL_CIPHER structure shouldn't
792 affect applications.) This give us more bits for each of these
793 categories, so there is no longer a need to coagulate AES128 and
794 AES256 into a single algorithm bit, and to coagulate Camellia128
795 and Camellia256 into a single algorithm bit, which has led to all
798 Thus, among other things, the kludge introduced in 0.9.7m and
799 0.9.8e for masking out AES256 independently of AES128 or masking
800 out Camellia256 independently of AES256 is not needed here in 0.9.9.
802 With the change, we also introduce new ciphersuite aliases that
803 so far were missing: "AES128", "AES256", "CAMELLIA128", and
807 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
808 Use the leftmost N bytes of the signature input if the input is
809 larger than the prime q (with N being the size in bytes of q).
812 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
813 it yet and it is largely untested.
816 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
819 *) Initial incomplete changes to avoid need for function casts in OpenSSL
820 some compilers (gcc 4.2 and later) reject their use. Safestack is
821 reimplemented. Update ASN1 to avoid use of legacy functions.
824 *) Win32/64 targets are linked with Winsock2.
827 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
828 to external functions. This can be used to increase CRL handling
829 efficiency especially when CRLs are very large by (for example) storing
830 the CRL revoked certificates in a database.
833 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
834 new CRLs added to a directory can be used. New command line option
835 -verify_return_error to s_client and s_server. This causes real errors
836 to be returned by the verify callback instead of carrying on no matter
837 what. This reflects the way a "real world" verify callback would behave.
840 *) GOST engine, supporting several GOST algorithms and public key formats.
841 Kindly donated by Cryptocom.
844 *) Partial support for Issuing Distribution Point CRL extension. CRLs
845 partitioned by DP are handled but no indirect CRL or reason partitioning
846 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
847 selected via a scoring technique which handles IDP and AKID in CRLs.
850 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
851 will ultimately be used for all verify operations: this will remove the
852 X509_STORE dependency on certificate verification and allow alternative
853 lookup methods. X509_STORE based implementations of these two callbacks.
856 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
857 Modify get_crl() to find a valid (unexpired) CRL if possible.
860 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
861 this would be called X509_CRL_cmp() but that name is already used by
862 a function that just compares CRL issuer names. Cache several CRL
863 extensions in X509_CRL structure and cache CRLDP in X509.
866 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
867 this maps equivalent X509_NAME structures into a consistent structure.
868 Name comparison can then be performed rapidly using memcmp().
871 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
875 *) Allow digests to supply their own micalg string for S/MIME type using
876 the ctrl EVP_MD_CTRL_MICALG.
879 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
880 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
881 ctrl. It can then customise the structure before and/or after signing
885 *) New function OBJ_add_sigid() to allow application defined signature OIDs
886 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
887 to free up any added signature OIDs.
890 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
891 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
892 digest and cipher tables. New options added to openssl utility:
893 list-message-digest-algorithms and list-cipher-algorithms.
896 *) Change the array representation of binary polynomials: the list
897 of degrees of non-zero coefficients is now terminated with -1.
898 Previously it was terminated with 0, which was also part of the
899 value; thus, the array representation was not applicable to
900 polynomials where t^0 has coefficient zero. This change makes
901 the array representation useful in a more general context.
904 *) Various modifications and fixes to SSL/TLS cipher string
905 handling. For ECC, the code now distinguishes between fixed ECDH
906 with RSA certificates on the one hand and with ECDSA certificates
907 on the other hand, since these are separate ciphersuites. The
908 unused code for Fortezza ciphersuites has been removed.
910 For consistency with EDH, ephemeral ECDH is now called "EECDH"
911 (not "ECDHE"). For consistency with the code for DH
912 certificates, use of ECDH certificates is now considered ECDH
913 authentication, not RSA or ECDSA authentication (the latter is
914 merely the CA's signing algorithm and not actively used in the
917 The temporary ciphersuite alias "ECCdraft" is no longer
918 available, and ECC ciphersuites are no longer excluded from "ALL"
919 and "DEFAULT". The following aliases now exist for RFC 4492
920 ciphersuites, most of these by analogy with the DH case:
922 kECDHr - ECDH cert, signed with RSA
923 kECDHe - ECDH cert, signed with ECDSA
924 kECDH - ECDH cert (signed with either RSA or ECDSA)
925 kEECDH - ephemeral ECDH
926 ECDH - ECDH cert or ephemeral ECDH
932 AECDH - anonymous ECDH
933 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
937 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
938 Use correct micalg parameters depending on digest(s) in signed message.
941 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
942 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
945 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
946 an engine to register a method. Add ENGINE lookups for methods and
947 functional reference processing.
950 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
951 EVP_{Sign,Verify}* which allow an application to customise the signature
955 *) New -resign option to smime utility. This adds one or more signers
956 to an existing PKCS#7 signedData structure. Also -md option to use an
957 alternative message digest algorithm for signing.
960 *) Tidy up PKCS#7 routines and add new functions to make it easier to
961 create PKCS7 structures containing multiple signers. Update smime
962 application to support multiple signers.
965 *) New -macalg option to pkcs12 utility to allow setting of an alternative
969 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
970 Reorganize PBE internals to lookup from a static table using NIDs,
971 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
972 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
973 PRF which will be automatically used with PBES2.
976 *) Replace the algorithm specific calls to generate keys in "req" with the
980 *) Update PKCS#7 enveloped data routines to use new API. This is now
981 supported by any public key method supporting the encrypt operation. A
982 ctrl is added to allow the public key algorithm to examine or modify
983 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
987 *) Add a ctrl to asn1 method to allow a public key algorithm to express
988 a default digest type to use. In most cases this will be SHA1 but some
989 algorithms (such as GOST) need to specify an alternative digest. The
990 return value indicates how strong the prefernce is 1 means optional and
991 2 is mandatory (that is it is the only supported type). Modify
992 ASN1_item_sign() to accept a NULL digest argument to indicate it should
993 use the default md. Update openssl utilities to use the default digest
994 type for signing if it is not explicitly indicated.
997 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
998 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
999 signing method from the key type. This effectively removes the link
1000 between digests and public key types.
1003 *) Add an OID cross reference table and utility functions. Its purpose is to
1004 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1005 rsaEncryption. This will allow some of the algorithm specific hackery
1006 needed to use the correct OID to be removed.
1009 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1010 structures for PKCS7_sign(). They are now set up by the relevant public
1014 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1017 *) Add support for key derivation (agreement) in the API, DH method and
1021 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1022 public and private key formats. As a side effect these add additional
1023 command line functionality not previously available: DSA signatures can be
1024 generated and verified using pkeyutl and DH key support and generation in
1029 [Oliver Tappe <zooey@hirschkaefer.de>]
1031 *) New make target "install_html_docs" installs HTML renditions of the
1033 [Oliver Tappe <zooey@hirschkaefer.de>]
1035 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1036 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1037 support key and parameter generation and add initial key generation
1038 functionality for RSA.
1041 *) Add functions for main EVP_PKEY_method operations. The undocumented
1042 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1043 EVP_PKEY_{encrypt,decrypt}_old.
1046 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1047 key API, doesn't do much yet.
1050 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1051 public key algorithms. New option to openssl utility:
1052 "list-public-key-algorithms" to print out info.
1055 *) Implement the Supported Elliptic Curves Extension for
1056 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1059 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1060 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1063 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1064 utilities such as rsa, dsa, dsaparam etc except they process any key
1068 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1069 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1070 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1074 *) Initial support for pluggable public key ASN1.
1075 De-spaghettify the public key ASN1 handling. Move public and private
1076 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1077 algorithm specific handling to a single module within the relevant
1078 algorithm directory. Add functions to allow (near) opaque processing
1079 of public and private key structures.
1082 *) Implement the Supported Point Formats Extension for
1083 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1086 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1087 for the psk identity [hint] and the psk callback functions to the
1088 SSL_SESSION, SSL and SSL_CTX structure.
1091 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1095 SSL_CTX_use_psk_identity_hint
1096 SSL_get_psk_identity_hint
1097 SSL_get_psk_identity
1098 SSL_use_psk_identity_hint
1100 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1102 *) Add RFC 3161 compliant time stamp request creation, response generation
1103 and response verification functionality.
1104 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1106 *) Add initial support for TLS extensions, specifically for the server_name
1107 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1108 have new members for a host name. The SSL data structure has an
1109 additional member SSL_CTX *initial_ctx so that new sessions can be
1110 stored in that context to allow for session resumption, even after the
1111 SSL has been switched to a new SSL_CTX in reaction to a client's
1112 server_name extension.
1114 New functions (subject to change):
1116 SSL_get_servername()
1117 SSL_get_servername_type()
1120 New CTRL codes and macros (subject to change):
1122 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1123 - SSL_CTX_set_tlsext_servername_callback()
1124 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1125 - SSL_CTX_set_tlsext_servername_arg()
1126 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1128 openssl s_client has a new '-servername ...' option.
1130 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1131 '-key2 ...', '-servername_fatal' (subject to change). This allows
1132 testing the HostName extension for a specific single host name ('-cert'
1133 and '-key' remain fallbacks for handshakes without HostName
1134 negotiation). If the unrecogninzed_name alert has to be sent, this by
1135 default is a warning; it becomes fatal with the '-servername_fatal'
1138 [Peter Sylvester, Remy Allais, Christophe Renou]
1140 *) Whirlpool hash implementation is added.
1143 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1144 bn(64,32). Because of instruction set limitations it doesn't have
1145 any negative impact on performance. This was done mostly in order
1146 to make it possible to share assembler modules, such as bn_mul_mont
1147 implementations, between 32- and 64-bit builds without hassle.
1150 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1151 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1155 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1156 dedicated Montgomery multiplication procedure, is introduced.
1157 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1158 "64-bit" performance on certain 32-bit targets.
1161 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1162 in SSL structures. New SSL ctrl to set maximum send fragment size.
1163 Save memory by seeting the I/O buffer sizes dynamically instead of
1164 using the maximum available value.
1167 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1168 in addition to the text details.
1171 *) Very, very preliminary EXPERIMENTAL support for printing of general
1172 ASN1 structures. This currently produces rather ugly output and doesn't
1173 handle several customised structures at all.
1176 *) Integrated support for PVK file format and some related formats such
1177 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1178 these in the 'rsa' and 'dsa' utilities.
1181 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1184 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1185 place for the (very old) "NETSCAPE" format certificates which are now
1186 handled using new ASN1 code equivalents.
1189 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1190 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1191 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1194 *) Modify CRL distribution points extension code to print out previously
1195 unsupported fields. Enhance extension setting code to allow setting of
1199 *) Add print and set support for Issuing Distribution Point CRL extension.
1202 *) Change 'Configure' script to enable Camellia by default.
1205 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1207 *) Fix ssl_ciph.c set-up race.
1208 [Adam Langley (Google)]
1210 *) Fix spurious failures in ecdsatest.c.
1211 [Emilia Käsper (Google)]
1213 *) Fix the BIO_f_buffer() implementation (which was mixing different
1214 interpretations of the '..._len' fields).
1215 [Adam Langley (Google)]
1217 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1218 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1219 threads won't reuse the same blinding coefficients.
1221 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1222 lock to call BN_BLINDING_invert_ex, and avoids one use of
1223 BN_BLINDING_update for each BN_BLINDING structure (previously,
1224 the last update always remained unused).
1225 [Emilia Käsper (Google)]
1227 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1228 for multi-threaded use of ECDH.
1229 [Adam Langley (Google)]
1231 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1234 *) Add protection against ECDSA timing attacks as mentioned in the paper
1235 by Billy Bob Brumley and Nicola Tuveri, see:
1237 http://eprint.iacr.org/2011/232.pdf
1239 [Billy Bob Brumley and Nicola Tuveri]
1241 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1243 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1244 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1246 *) Fix bug in string printing code: if *any* escaping is enabled we must
1247 escape the escape character (backslash) or the resulting string is
1251 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1253 *) Disable code workaround for ancient and obsolete Netscape browsers
1254 and servers: an attacker can use it in a ciphersuite downgrade attack.
1255 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1258 *) Fixed J-PAKE implementation error, originally discovered by
1259 Sebastien Martini, further info and confirmation from Stefan
1260 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1263 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1265 *) Fix extension code to avoid race conditions which can result in a buffer
1266 overrun vulnerability: resumed sessions must not be modified as they can
1267 be shared by multiple threads. CVE-2010-3864
1270 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1273 *) Don't reencode certificate when calculating signature: cache and use
1274 the original encoding instead. This makes signature verification of
1275 some broken encodings work correctly.
1278 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1279 is also one of the inputs.
1280 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1282 *) Don't repeatedly append PBE algorithms to table if they already exist.
1283 Sort table on each new add. This effectively makes the table read only
1284 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1288 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1290 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1293 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1294 access or freeing data twice (CVE-2010-0742)
1295 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1297 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1298 common in certificates and some applications which only call
1299 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1303 Reduce copying into .apps and .test in makevms.com
1304 Don't try to use blank CA certificate in CA.com
1305 Allow use of C files from original directories in maketests.com
1306 [Steven M. Schweda" <sms@antinode.info>]
1308 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1310 *) When rejecting SSL/TLS records due to an incorrect version number, never
1311 update s->server with a new major version number. As of
1312 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1313 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1314 the previous behavior could result in a read attempt at NULL when
1315 receiving specific incorrect SSL/TLS records once record payload
1316 protection is active. (CVE-2010-0740)
1317 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1319 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1320 could be crashed if the relevant tables were not present (e.g. chrooted).
1321 [Tomas Hoger <thoger@redhat.com>]
1323 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1325 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1326 [Martin Olsson, Neel Mehta]
1328 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1329 accommodate for stack sorting, always a write lock!).
1332 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1333 excessive delays in the RAND_poll(): over a minute. As a workaround
1334 include a time check in the inner Heap32Next loop too.
1337 *) The code that handled flushing of data in SSL/TLS originally used the
1338 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1339 the problem outlined in PR#1949. The fix suggested there however can
1340 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1341 of Apache). So instead simplify the code to flush unconditionally.
1342 This should be fine since flushing with no data to flush is a no op.
1345 *) Handle TLS versions 2.0 and later properly and correctly use the
1346 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1347 off ancient servers have a habit of sticking around for a while...
1350 *) Modify compression code so it frees up structures without using the
1351 ex_data callbacks. This works around a problem where some applications
1352 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1353 restarting) then use compression (e.g. SSL with compression) later.
1354 This results in significant per-connection memory leaks and
1355 has caused some security issues including CVE-2008-1678 and
1359 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1360 change when encrypting or decrypting.
1363 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1364 connect and renegotiate with servers which do not support RI.
1365 Until RI is more widely deployed this option is enabled by default.
1368 *) Add "missing" ssl ctrls to clear options and mode.
1371 *) If client attempts to renegotiate and doesn't support RI respond with
1372 a no_renegotiation alert as required by RFC5746. Some renegotiating
1373 TLS clients will continue a connection gracefully when they receive
1374 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1375 waiting for a server hello which it will never receive. Now we treat a
1376 received no_renegotiation alert as a fatal error. This is because
1377 applications requesting a renegotiation might well expect it to succeed
1378 and would have no code in place to handle the server denying it so the
1379 only safe thing to do is to terminate the connection.
1382 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1383 peer supports secure renegotiation and 0 otherwise. Print out peer
1384 renegotiation support in s_client/s_server.
1387 *) Replace the highly broken and deprecated SPKAC certification method with
1388 the updated NID creation version. This should correctly handle UTF8.
1391 *) Implement RFC5746. Re-enable renegotiation but require the extension
1392 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1393 turns out to be a bad idea. It has been replaced by
1394 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1395 SSL_CTX_set_options(). This is really not recommended unless you
1396 know what you are doing.
1397 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1399 *) Fixes to stateless session resumption handling. Use initial_ctx when
1400 issuing and attempting to decrypt tickets in case it has changed during
1401 servername handling. Use a non-zero length session ID when attempting
1402 stateless session resumption: this makes it possible to determine if
1403 a resumption has occurred immediately after receiving server hello
1404 (several places in OpenSSL subtly assume this) instead of later in
1408 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1409 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1410 fixes for a few places where the return code is not checked
1412 [Julia Lawall <julia@diku.dk>]
1414 *) Add --strict-warnings option to Configure script to include devteam
1415 warnings in other configurations.
1418 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1419 makes it possible to install openssl libraries in locations which
1420 have names other than "lib", for example "/usr/lib64" which some
1422 [Steve Henson, based on patch from Jeremy Utley]
1424 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1425 X690 8.9.12 and can produce some misleading textual output of OIDs.
1426 [Steve Henson, reported by Dan Kaminsky]
1428 *) Delete MD2 from algorithm tables. This follows the recommendation in
1429 several standards that it is not used in new applications due to
1430 several cryptographic weaknesses. For binary compatibility reasons
1431 the MD2 API is still compiled in by default.
1434 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1438 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1439 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1441 [Guenter <lists@gknw.net>]
1443 *) Fix the server certificate chain building code to use X509_verify_cert(),
1444 it used to have an ad-hoc builder which was unable to cope with anything
1445 other than a simple chain.
1446 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1448 *) Don't check self signed certificate signatures in X509_verify_cert()
1449 by default (a flag can override this): it just wastes time without
1450 adding any security. As a useful side effect self signed root CAs
1451 with non-FIPS digests are now usable in FIPS mode.
1454 *) In dtls1_process_out_of_seq_message() the check if the current message
1455 is already buffered was missing. For every new message was memory
1456 allocated, allowing an attacker to perform an denial of service attack
1457 with sending out of seq handshake messages until there is no memory
1458 left. Additionally every future messege was buffered, even if the
1459 sequence number made no sense and would be part of another handshake.
1460 So only messages with sequence numbers less than 10 in advance will be
1461 buffered. (CVE-2009-1378)
1462 [Robin Seggelmann, discovered by Daniel Mentz]
1464 *) Records are buffered if they arrive with a future epoch to be
1465 processed after finishing the corresponding handshake. There is
1466 currently no limitation to this buffer allowing an attacker to perform
1467 a DOS attack with sending records with future epochs until there is no
1468 memory left. This patch adds the pqueue_size() function to detemine
1469 the size of a buffer and limits the record buffer to 100 entries.
1471 [Robin Seggelmann, discovered by Daniel Mentz]
1473 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1474 parent structure is freed. (CVE-2009-1379)
1477 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1478 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1481 [Ilya O. <vrghost@gmail.com>]
1483 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1485 *) Disable renegotiation completely - this fixes a severe security
1486 problem (CVE-2009-3555) at the cost of breaking all
1487 renegotiation. Renegotiation can be re-enabled by setting
1488 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1489 run-time. This is really not recommended unless you know what
1493 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1495 *) Don't set val to NULL when freeing up structures, it is freed up by
1496 underlying code. If sizeof(void *) > sizeof(long) this can result in
1497 zeroing past the valid field. (CVE-2009-0789)
1498 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1500 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1501 checked correctly. This would allow some invalid signed attributes to
1502 appear to verify correctly. (CVE-2009-0591)
1503 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1505 *) Reject UniversalString and BMPString types with invalid lengths. This
1506 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1507 a legal length. (CVE-2009-0590)
1510 *) Set S/MIME signing as the default purpose rather than setting it
1511 unconditionally. This allows applications to override it at the store
1515 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1516 to handle some structures.
1519 *) Improve efficiency of mem_gets: don't search whole buffer each time
1521 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1523 *) New -hex option for openssl rand.
1526 *) Print out UTF8String and NumericString when parsing ASN1.
1529 *) Support NumericString type for name components.
1532 *) Allow CC in the environment to override the automatically chosen
1533 compiler. Note that nothing is done to ensure flags work with the
1537 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1539 *) Properly check EVP_VerifyFinal() and similar return values
1541 [Ben Laurie, Bodo Moeller, Google Security Team]
1543 *) Enable TLS extensions by default.
1546 *) Allow the CHIL engine to be loaded, whether the application is
1547 multithreaded or not. (This does not release the developer from the
1548 obligation to set up the dynamic locking callbacks.)
1549 [Sander Temme <sander@temme.net>]
1551 *) Use correct exit code if there is an error in dgst command.
1552 [Steve Henson; problem pointed out by Roland Dirlewanger]
1554 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1555 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1558 *) Add experimental JPAKE support, including demo authentication in
1559 s_client and s_server.
1562 *) Set the comparison function in v3_addr_canonize().
1563 [Rob Austein <sra@hactrn.net>]
1565 *) Add support for XMPP STARTTLS in s_client.
1566 [Philip Paeps <philip@freebsd.org>]
1568 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1569 to ensure that even with this option, only ciphersuites in the
1570 server's preference list will be accepted. (Note that the option
1571 applies only when resuming a session, so the earlier behavior was
1572 just about the algorithm choice for symmetric cryptography.)
1575 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1577 *) Fix NULL pointer dereference if a DTLS server received
1578 ChangeCipherSpec as first record (CVE-2009-1386).
1581 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1582 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1585 *) The fix in 0.9.8c that supposedly got rid of unsafe
1586 double-checked locking was incomplete for RSA blinding,
1587 addressing just one layer of what turns out to have been
1588 doubly unsafe triple-checked locking.
1590 So now fix this for real by retiring the MONT_HELPER macro
1591 in crypto/rsa/rsa_eay.c.
1593 [Bodo Moeller; problem pointed out by Marius Schilder]
1595 *) Various precautionary measures:
1597 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1599 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1600 (NB: This would require knowledge of the secret session ticket key
1601 to exploit, in which case you'd be SOL either way.)
1603 - Change bn_nist.c so that it will properly handle input BIGNUMs
1604 outside the expected range.
1606 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1609 [Neel Mehta, Bodo Moeller]
1611 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1612 the load fails. Useful for distros.
1613 [Ben Laurie and the FreeBSD team]
1615 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1618 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1621 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1623 This work was sponsored by Logica.
1626 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1627 keystores. Support for SSL/TLS client authentication too.
1628 Not compiled unless enable-capieng specified to Configure.
1630 This work was sponsored by Logica.
1633 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1634 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1635 attribute creation routines such as certifcate requests and PKCS#12
1639 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1641 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1642 handshake which could lead to a cilent crash as found using the
1643 Codenomicon TLS test suite (CVE-2008-1672)
1644 [Steve Henson, Mark Cox]
1646 *) Fix double free in TLS server name extensions which could lead to
1647 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1650 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1652 Clear the error queue to ensure that error entries left from
1653 older function calls do not interfere with the correct operation.
1654 [Lutz Jaenicke, Erik de Castro Lopo]
1656 *) Remove root CA certificates of commercial CAs:
1658 The OpenSSL project does not recommend any specific CA and does not
1659 have any policy with respect to including or excluding any CA.
1660 Therefore it does not make any sense to ship an arbitrary selection
1661 of root CA certificates with the OpenSSL software.
1664 *) RSA OAEP patches to fix two separate invalid memory reads.
1665 The first one involves inputs when 'lzero' is greater than
1666 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1667 before the beginning of from). The second one involves inputs where
1668 the 'db' section contains nothing but zeroes (there is a one-byte
1669 invalid read after the end of 'db').
1670 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1672 *) Partial backport from 0.9.9-dev:
1674 Introduce bn_mul_mont (dedicated Montgomery multiplication
1675 procedure) as a candidate for BIGNUM assembler implementation.
1676 While 0.9.9-dev uses assembler for various architectures, only
1677 x86_64 is available by default here in the 0.9.8 branch, and
1678 32-bit x86 is available through a compile-time setting.
1680 To try the 32-bit x86 assembler implementation, use Configure
1681 option "enable-montasm" (which exists only for this backport).
1683 As "enable-montasm" for 32-bit x86 disclaims code stability
1684 anyway, in this constellation we activate additional code
1685 backported from 0.9.9-dev for further performance improvements,
1686 namely BN_from_montgomery_word. (To enable this otherwise,
1687 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1689 [Andy Polyakov (backport partially by Bodo Moeller)]
1691 *) Add TLS session ticket callback. This allows an application to set
1692 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1693 values. This is useful for key rollover for example where several key
1694 sets may exist with different names.
1697 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1698 This was broken until now in 0.9.8 releases, such that the only way
1699 a registered ENGINE could be used (assuming it initialises
1700 successfully on the host) was to explicitly set it as the default
1701 for the relevant algorithms. This is in contradiction with 0.9.7
1702 behaviour and the documentation. With this fix, when an ENGINE is
1703 registered into a given algorithm's table of implementations, the
1704 'uptodate' flag is reset so that auto-discovery will be used next
1705 time a new context for that algorithm attempts to select an
1707 [Ian Lister (tweaked by Geoff Thorpe)]
1709 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1710 implemention in the following ways:
1712 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1715 Lack of BER streaming support means one pass streaming processing is
1716 only supported if data is detached: setting the streaming flag is
1717 ignored for embedded content.
1719 CMS support is disabled by default and must be explicitly enabled
1720 with the enable-cms configuration option.
1723 *) Update the GMP engine glue to do direct copies between BIGNUM and
1724 mpz_t when openssl and GMP use the same limb size. Otherwise the
1725 existing "conversion via a text string export" trick is still used.
1726 [Paul Sheer <paulsheer@gmail.com>]
1728 *) Zlib compression BIO. This is a filter BIO which compressed and
1729 uncompresses any data passed through it.
1732 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1733 RFC3394 compatible AES key wrapping.
1736 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1737 sets string data without copying. X509_ALGOR_set0() and
1738 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1739 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1740 from an X509_ATTRIBUTE structure optionally checking it occurs only
1741 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1745 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1746 to get the expected BN_FLG_CONSTTIME behavior.
1747 [Bodo Moeller (Google)]
1751 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1752 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1753 - added some more tests to do_tests.pl
1754 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1755 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1756 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1757 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1758 - various changes to netware.pl to enable gcc-cross builds on Win32
1760 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1761 - various changes to fix missing prototype warnings
1762 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1763 - added AES, WHIRLPOOL and CPUID assembler code to build files
1764 - added missing AES assembler make rules to mk1mf.pl
1765 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1766 [Guenter Knauf <eflash@gmx.net>]
1768 *) Implement certificate status request TLS extension defined in RFC3546.
1769 A client can set the appropriate parameters and receive the encoded
1770 OCSP response via a callback. A server can query the supplied parameters
1771 and set the encoded OCSP response in the callback. Add simplified examples
1772 to s_client and s_server.
1775 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1777 *) Fix various bugs:
1778 + Binary incompatibility of ssl_ctx_st structure
1779 + DTLS interoperation with non-compliant servers
1780 + Don't call get_session_cb() without proposed session
1781 + Fix ia64 assembler code
1782 [Andy Polyakov, Steve Henson]
1784 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1786 *) DTLS Handshake overhaul. There were longstanding issues with
1787 OpenSSL DTLS implementation, which were making it impossible for
1788 RFC 4347 compliant client to communicate with OpenSSL server.
1789 Unfortunately just fixing these incompatibilities would "cut off"
1790 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1791 server keeps tolerating non RFC compliant syntax. The opposite is
1792 not true, 0.9.8f client can not communicate with earlier server.
1793 This update even addresses CVE-2007-4995.
1796 *) Changes to avoid need for function casts in OpenSSL: some compilers
1797 (gcc 4.2 and later) reject their use.
1798 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1801 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1802 RFC4507bis. The encrypted ticket format is an encrypted encoded
1803 SSL_SESSION structure, that way new session features are automatically
1806 If a client application caches session in an SSL_SESSION structure
1807 support is transparent because tickets are now stored in the encoded
1810 The SSL_CTX structure automatically generates keys for ticket
1811 protection in servers so again support should be possible
1812 with no application modification.
1814 If a client or server wishes to disable RFC4507 support then the option
1815 SSL_OP_NO_TICKET can be set.
1817 Add a TLS extension debugging callback to allow the contents of any client
1818 or server extensions to be examined.
1820 This work was sponsored by Google.
1823 *) Add initial support for TLS extensions, specifically for the server_name
1824 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1825 have new members for a host name. The SSL data structure has an
1826 additional member SSL_CTX *initial_ctx so that new sessions can be
1827 stored in that context to allow for session resumption, even after the
1828 SSL has been switched to a new SSL_CTX in reaction to a client's
1829 server_name extension.
1831 New functions (subject to change):
1833 SSL_get_servername()
1834 SSL_get_servername_type()
1837 New CTRL codes and macros (subject to change):
1839 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1840 - SSL_CTX_set_tlsext_servername_callback()
1841 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1842 - SSL_CTX_set_tlsext_servername_arg()
1843 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1845 openssl s_client has a new '-servername ...' option.
1847 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1848 '-key2 ...', '-servername_fatal' (subject to change). This allows
1849 testing the HostName extension for a specific single host name ('-cert'
1850 and '-key' remain fallbacks for handshakes without HostName
1851 negotiation). If the unrecogninzed_name alert has to be sent, this by
1852 default is a warning; it becomes fatal with the '-servername_fatal'
1855 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1857 *) Add AES and SSE2 assembly language support to VC++ build.
1860 *) Mitigate attack on final subtraction in Montgomery reduction.
1863 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1864 (which previously caused an internal error).
1867 *) Squeeze another 10% out of IGE mode when in != out.
1870 *) AES IGE mode speedup.
1871 [Dean Gaudet (Google)]
1873 *) Add the Korean symmetric 128-bit cipher SEED (see
1874 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1875 add SEED ciphersuites from RFC 4162:
1877 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1878 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1879 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1880 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1882 To minimize changes between patchlevels in the OpenSSL 0.9.8
1883 series, SEED remains excluded from compilation unless OpenSSL
1884 is configured with 'enable-seed'.
1885 [KISA, Bodo Moeller]
1887 *) Mitigate branch prediction attacks, which can be practical if a
1888 single processor is shared, allowing a spy process to extract
1889 information. For detailed background information, see
1890 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1891 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1892 and Necessary Software Countermeasures"). The core of the change
1893 are new versions BN_div_no_branch() and
1894 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1895 respectively, which are slower, but avoid the security-relevant
1896 conditional branches. These are automatically called by BN_div()
1897 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1898 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1899 remove a conditional branch.
1901 BN_FLG_CONSTTIME is the new name for the previous
1902 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1903 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1904 in the exponent causes BN_mod_exp_mont() to use the alternative
1905 implementation in BN_mod_exp_mont_consttime().) The old name
1906 remains as a deprecated alias.
1908 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1909 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1910 constant-time implementations for more than just exponentiation.
1911 Here too the old name is kept as a deprecated alias.
1913 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1914 the BN_BLINDING structure gets an independent copy of the
1915 modulus. This means that the previous "BIGNUM *m" argument to
1916 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1917 essentially becomes "const BIGNUM *m", although we can't actually
1918 change this in the header file before 0.9.9. It allows
1919 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1920 enable BN_FLG_CONSTTIME.
1922 [Matthew D Wood (Intel Corp)]
1924 *) In the SSL/TLS server implementation, be strict about session ID
1925 context matching (which matters if an application uses a single
1926 external cache for different purposes). Previously,
1927 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1928 set. This did ensure strict client verification, but meant that,
1929 with applications using a single external cache for quite
1930 different requirements, clients could circumvent ciphersuite
1931 restrictions for a given session ID context by starting a session
1932 in a different context.
1935 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1936 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1937 authentication-only ciphersuites.
1940 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1941 not complete and could lead to a possible single byte overflow
1942 (CVE-2007-5135) [Ben Laurie]
1944 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1946 *) Since AES128 and AES256 (and similarly Camellia128 and
1947 Camellia256) share a single mask bit in the logic of
1948 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1949 kludge to work properly if AES128 is available and AES256 isn't
1950 (or if Camellia128 is available and Camellia256 isn't).
1953 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1954 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1955 When a point or a seed is encoded in a BIT STRING, we need to
1956 prevent the removal of trailing zero bits to get the proper DER
1957 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1958 of a NamedBitList, for which trailing 0 bits need to be removed.)
1961 *) Have SSL/TLS server implementation tolerate "mismatched" record
1962 protocol version while receiving ClientHello even if the
1963 ClientHello is fragmented. (The server can't insist on the
1964 particular protocol version it has chosen before the ServerHello
1965 message has informed the client about his choice.)
1968 *) Add RFC 3779 support.
1969 [Rob Austein for ARIN, Ben Laurie]
1971 *) Load error codes if they are not already present instead of using a
1972 static variable. This allows them to be cleanly unloaded and reloaded.
1973 Improve header file function name parsing.
1976 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1977 or CAPABILITY handshake as required by RFCs.
1980 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1982 *) Introduce limits to prevent malicious keys being able to
1983 cause a denial of service. (CVE-2006-2940)
1984 [Steve Henson, Bodo Moeller]
1986 *) Fix ASN.1 parsing of certain invalid structures that can result
1987 in a denial of service. (CVE-2006-2937) [Steve Henson]
1989 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1990 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1992 *) Fix SSL client code which could crash if connecting to a
1993 malicious SSLv2 server. (CVE-2006-4343)
1994 [Tavis Ormandy and Will Drewry, Google Security Team]
1996 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1997 match only those. Before that, "AES256-SHA" would be interpreted
1998 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1999 the same strength classification in 0.9.7h) as we currently only
2000 have a single AES bit in the ciphersuite description bitmap.
2001 That change, however, also applied to ciphersuite strings such as
2002 "RC4-MD5" that intentionally matched multiple ciphersuites --
2003 namely, SSL 2.0 ciphersuites in addition to the more common ones
2004 from SSL 3.0/TLS 1.0.
2006 So we change the selection algorithm again: Naming an explicit
2007 ciphersuite selects this one ciphersuite, and any other similar
2008 ciphersuite (same bitmap) from *other* protocol versions.
2009 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2010 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2012 Since SSL 2.0 does not have any ciphersuites for which the
2013 128/256 bit distinction would be relevant, this works for now.
2014 The proper fix will be to use different bits for AES128 and
2015 AES256, which would have avoided the problems from the beginning;
2016 however, bits are scarce, so we can only do this in a new release
2017 (not just a patchlevel) when we can change the SSL_CIPHER
2018 definition to split the single 'unsigned long mask' bitmap into
2019 multiple values to extend the available space.
2023 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2025 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2026 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2028 *) Add AES IGE and biIGE modes.
2031 *) Change the Unix randomness entropy gathering to use poll() when
2032 possible instead of select(), since the latter has some
2033 undesirable limitations.
2034 [Darryl Miles via Richard Levitte and Bodo Moeller]
2036 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2037 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2038 cannot be implicitly activated as part of, e.g., the "AES" alias.
2039 However, please upgrade to OpenSSL 0.9.9[-dev] for
2040 non-experimental use of the ECC ciphersuites to get TLS extension
2041 support, which is required for curve and point format negotiation
2042 to avoid potential handshake problems.
2045 *) Disable rogue ciphersuites:
2047 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2048 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2049 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2051 The latter two were purportedly from
2052 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2055 Also deactivate the remaining ciphersuites from
2056 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2057 unofficial, and the ID has long expired.
2060 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2061 dual-core machines) and other potential thread-safety issues.
2064 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2065 versions), which is now available for royalty-free use
2066 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2067 Also, add Camellia TLS ciphersuites from RFC 4132.
2069 To minimize changes between patchlevels in the OpenSSL 0.9.8
2070 series, Camellia remains excluded from compilation unless OpenSSL
2071 is configured with 'enable-camellia'.
2074 *) Disable the padding bug check when compression is in use. The padding
2075 bug check assumes the first packet is of even length, this is not
2076 necessarily true if compresssion is enabled and can result in false
2077 positives causing handshake failure. The actual bug test is ancient
2078 code so it is hoped that implementations will either have fixed it by
2079 now or any which still have the bug do not support compression.
2082 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2084 *) When applying a cipher rule check to see if string match is an explicit
2085 cipher suite and only match that one cipher suite if it is.
2088 *) Link in manifests for VC++ if needed.
2089 [Austin Ziegler <halostatue@gmail.com>]
2091 *) Update support for ECC-based TLS ciphersuites according to
2092 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2093 TLS extensions, which are supported starting with the 0.9.9
2094 branch, not in the OpenSSL 0.9.8 branch).
2097 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2098 opaque EVP_CIPHER_CTX handling.
2101 *) Fixes and enhancements to zlib compression code. We now only use
2102 "zlib1.dll" and use the default __cdecl calling convention on Win32
2103 to conform with the standards mentioned here:
2104 http://www.zlib.net/DLL_FAQ.txt
2105 Static zlib linking now works on Windows and the new --with-zlib-include
2106 --with-zlib-lib options to Configure can be used to supply the location
2107 of the headers and library. Gracefully handle case where zlib library
2111 *) Several fixes and enhancements to the OID generation code. The old code
2112 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2113 handle numbers larger than ULONG_MAX, truncated printing and had a
2114 non standard OBJ_obj2txt() behaviour.
2117 *) Add support for building of engines under engine/ as shared libraries
2118 under VC++ build system.
2121 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2122 Hopefully, we will not see any false combination of paths any more.
2125 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2127 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2128 (part of SSL_OP_ALL). This option used to disable the
2129 countermeasure against man-in-the-middle protocol-version
2130 rollback in the SSL 2.0 server implementation, which is a bad
2131 idea. (CVE-2005-2969)
2133 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2134 for Information Security, National Institute of Advanced Industrial
2135 Science and Technology [AIST], Japan)]
2137 *) Add two function to clear and return the verify parameter flags.
2140 *) Keep cipherlists sorted in the source instead of sorting them at
2141 runtime, thus removing the need for a lock.
2144 *) Avoid some small subgroup attacks in Diffie-Hellman.
2145 [Nick Mathewson and Ben Laurie]
2147 *) Add functions for well-known primes.
2150 *) Extended Windows CE support.
2151 [Satoshi Nakamura and Andy Polyakov]
2153 *) Initialize SSL_METHOD structures at compile time instead of during
2154 runtime, thus removing the need for a lock.
2157 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2158 attempting to decrypt each encrypted key in turn. Add support to
2162 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2164 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2167 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2170 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2171 key into the same file any more.
2174 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2177 *) Add -utf8 command line and config file option to 'ca'.
2178 [Stefan <stf@udoma.org]
2180 *) Removed the macro des_crypt(), as it seems to conflict with some
2181 libraries. Use DES_crypt().
2184 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2185 involves renaming the source and generated shared-libs for
2186 both. The engines will accept the corrected or legacy ids
2187 ('ncipher' and '4758_cca' respectively) when binding. NB,
2188 this only applies when building 'shared'.
2189 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2191 *) Add attribute functions to EVP_PKEY structure. Modify
2192 PKCS12_create() to recognize a CSP name attribute and
2193 use it. Make -CSP option work again in pkcs12 utility.
2196 *) Add new functionality to the bn blinding code:
2197 - automatic re-creation of the BN_BLINDING parameters after
2198 a fixed number of uses (currently 32)
2199 - add new function for parameter creation
2200 - introduce flags to control the update behaviour of the
2201 BN_BLINDING parameters
2202 - hide BN_BLINDING structure
2203 Add a second BN_BLINDING slot to the RSA structure to improve
2204 performance when a single RSA object is shared among several
2208 *) Add support for DTLS.
2209 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2211 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2212 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2215 *) Remove buggy and incompletet DH cert support from
2216 ssl/ssl_rsa.c and ssl/s3_both.c
2219 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2220 the apps/openssl applications.
2223 *) Compile clean with "-Wall -Wmissing-prototypes
2224 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2225 DEBUG_SAFESTACK must also be set.
2228 *) Change ./Configure so that certain algorithms can be disabled by default.
2229 The new counterpiece to "no-xxx" is "enable-xxx".
2231 The patented RC5 and MDC2 algorithms will now be disabled unless
2232 "enable-rc5" and "enable-mdc2", respectively, are specified.
2234 (IDEA remains enabled despite being patented. This is because IDEA
2235 is frequently required for interoperability, and there is no license
2236 fee for non-commercial use. As before, "no-idea" can be used to
2237 avoid this algorithm.)
2241 *) Add processing of proxy certificates (see RFC 3820). This work was
2242 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2243 EGEE (Enabling Grids for E-science in Europe).
2246 *) RC4 performance overhaul on modern architectures/implementations, such
2247 as Intel P4, IA-64 and AMD64.
2250 *) New utility extract-section.pl. This can be used specify an alternative
2251 section number in a pod file instead of having to treat each file as
2252 a separate case in Makefile. This can be done by adding two lines to the
2255 =for comment openssl_section:XXX
2257 The blank line is mandatory.
2261 *) New arguments -certform, -keyform and -pass for s_client and s_server
2262 to allow alternative format key and certificate files and passphrase
2266 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2267 update associated structures and add various utility functions.
2269 Add new policy related verify parameters, include policy checking in
2270 standard verify code. Enhance 'smime' application with extra parameters
2271 to support policy checking and print out.
2274 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2275 Nehemiah processors. These extensions support AES encryption in hardware
2276 as well as RNG (though RNG support is currently disabled).
2277 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2279 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2282 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2283 [Andy Polyakov and a number of other people]
2285 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2286 implementation contributed by IBM.
2287 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2289 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2290 exponent rather than 'unsigned long'. There is a corresponding change to
2291 the new 'rsa_keygen' element of the RSA_METHOD structure.
2292 [Jelte Jansen, Geoff Thorpe]
2294 *) Functionality for creating the initial serial number file is now
2295 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2297 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2298 number file to 1, which is bound to cause problems. To avoid
2299 the problems while respecting compatibility between different 0.9.7
2300 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2301 CA.pl for serial number initialization. With the new release 0.9.8,
2302 we can fix the problem directly in the 'ca' utility.)
2305 *) Reduced header interdepencies by declaring more opaque objects in
2306 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2307 give fewer recursive includes, which could break lazy source code - so
2308 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2309 developers should define this symbol when building and using openssl to
2310 ensure they track the recommended behaviour, interfaces, [etc], but
2311 backwards-compatible behaviour prevails when this isn't defined.
2314 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2317 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2318 This will generate a random key of the appropriate length based on the
2319 cipher context. The EVP_CIPHER can provide its own random key generation
2320 routine to support keys of a specific form. This is used in the des and
2321 3des routines to generate a key of the correct parity. Update S/MIME
2322 code to use new functions and hence generate correct parity DES keys.
2323 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2324 valid (weak or incorrect parity).
2327 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2328 as looking them up. This is useful when the verified structure may contain
2329 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2330 present unless the new PKCS7_NO_CRL flag is asserted.
2333 *) Extend ASN1 oid configuration module. It now additionally accepts the
2336 shortName = some long name, 1.2.3.4
2339 *) Reimplemented the BN_CTX implementation. There is now no more static
2340 limitation on the number of variables it can handle nor the depth of the
2341 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2342 information can now expand as required, and rather than having a single
2343 static array of bignums, BN_CTX now uses a linked-list of such arrays
2344 allowing it to expand on demand whilst maintaining the usefulness of
2345 BN_CTX's "bundling".
2348 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2349 to allow all RSA operations to function using a single BN_CTX.
2352 *) Preliminary support for certificate policy evaluation and checking. This
2353 is initially intended to pass the tests outlined in "Conformance Testing
2354 of Relying Party Client Certificate Path Processing Logic" v1.07.
2357 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2358 remained unused and not that useful. A variety of other little bignum
2359 tweaks and fixes have also been made continuing on from the audit (see
2363 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2364 associated ASN1, EVP and SSL functions and old ASN1 macros.
2367 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2368 and this should never fail. So the return value from the use of
2369 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2370 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2373 *) BN_CTX_get() should return zero-valued bignums, providing the same
2374 initialised value as BN_new().
2375 [Geoff Thorpe, suggested by Ulf Möller]
2377 *) Support for inhibitAnyPolicy certificate extension.
2380 *) An audit of the BIGNUM code is underway, for which debugging code is
2381 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2382 is considered valid when processing BIGNUMs, and causes execution to
2383 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2384 further steps are taken to deliberately pollute unused data in BIGNUM
2385 structures to try and expose faulty code further on. For now, openssl will
2386 (in its default mode of operation) continue to tolerate the inconsistent
2387 forms that it has tolerated in the past, but authors and packagers should
2388 consider trying openssl and their own applications when compiled with
2389 these debugging symbols defined. It will help highlight potential bugs in
2390 their own code, and will improve the test coverage for OpenSSL itself. At
2391 some point, these tighter rules will become openssl's default to improve
2392 maintainability, though the assert()s and other overheads will remain only
2393 in debugging configurations. See bn.h for more details.
2394 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2396 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2397 that can only be obtained through BN_CTX_new() (which implicitly
2398 initialises it). The presence of this function only made it possible
2399 to overwrite an existing structure (and cause memory leaks).
2402 *) Because of the callback-based approach for implementing LHASH as a
2403 template type, lh_insert() adds opaque objects to hash-tables and
2404 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2405 to clean up those corresponding objects before destroying the hash table
2406 (and losing the object pointers). So some over-zealous constifications in
2407 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2408 objects as "const" and the lh_doall[_arg] callback wrappers are not
2409 prototyped to have "const" restrictions on the object pointers they are
2410 given (and so aren't required to cast them away any more).
2413 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2414 (speed) prefers to use its own implementation. The two implementations
2415 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2416 its object type properly exposed (MS_TM) instead of casting to/from "char
2417 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2418 aren't necessarily the greatest nomenclatures - but this is what was used
2419 internally to the implementation so I've used that for now.
2422 *) Ensure that deprecated functions do not get compiled when
2423 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2424 the self-tests were still using deprecated key-generation functions so
2425 these have been updated also.
2428 *) Reorganise PKCS#7 code to separate the digest location functionality
2429 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2430 New function PKCS7_set_digest() to set the digest type for PKCS#7
2431 digestedData type. Add additional code to correctly generate the
2432 digestedData type and add support for this type in PKCS7 initialization
2436 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2437 structure of type "other".
2440 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2441 sure the loop does correctly stop and breaking ("division by zero")
2442 modulus operations are not performed. The (pre-generated) prime
2443 table crypto/bn/bn_prime.h was already correct, but it could not be
2444 re-generated on some platforms because of the "division by zero"
2445 situation in the script.
2446 [Ralf S. Engelschall]
2448 *) Update support for ECC-based TLS ciphersuites according to
2449 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2450 SHA-1 now is only used for "small" curves (where the
2451 representation of a field element takes up to 24 bytes); for
2452 larger curves, the field element resulting from ECDH is directly
2453 used as premaster secret.
2454 [Douglas Stebila (Sun Microsystems Laboratories)]
2456 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2457 curve secp160r1 to the tests.
2458 [Douglas Stebila (Sun Microsystems Laboratories)]
2460 *) Add the possibility to load symbols globally with DSO.
2461 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2463 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2464 control of the error stack.
2467 *) Add support for STORE in ENGINE.
2470 *) Add the STORE type. The intention is to provide a common interface
2471 to certificate and key stores, be they simple file-based stores, or
2472 HSM-type store, or LDAP stores, or...
2473 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2476 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2477 pass a list of arguments to any function as well as provide a way
2478 for a function to pass data back to the caller.
2481 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2482 works like BUF_strdup() but can be used to duplicate a portion of
2483 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2487 *) Add the function sk_find_ex() which works like sk_find(), but will
2488 return an index to an element even if an exact match couldn't be
2489 found. The index is guaranteed to point at the element where the
2490 searched-for key would be inserted to preserve sorting order.
2493 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2494 takes an extra flags argument for optional functionality. Currently,
2495 the following flags are defined:
2497 OBJ_BSEARCH_VALUE_ON_NOMATCH
2498 This one gets OBJ_bsearch_ex() to return a pointer to the first
2499 element where the comparing function returns a negative or zero
2502 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2503 This one gets OBJ_bsearch_ex() to return a pointer to the first
2504 element where the comparing function returns zero. This is useful
2505 if there are more than one element where the comparing function
2509 *) Make it possible to create self-signed certificates with 'openssl ca'
2510 in such a way that the self-signed certificate becomes part of the
2511 CA database and uses the same mechanisms for serial number generation
2512 as all other certificate signing. The new flag '-selfsign' enables
2513 this functionality. Adapt CA.sh and CA.pl.in.
2516 *) Add functionality to check the public key of a certificate request
2517 against a given private. This is useful to check that a certificate
2518 request can be signed by that key (self-signing).
2521 *) Make it possible to have multiple active certificates with the same
2522 subject in the CA index file. This is done only if the keyword
2523 'unique_subject' is set to 'no' in the main CA section (default
2524 if 'CA_default') of the configuration file. The value is saved
2525 with the database itself in a separate index attribute file,
2526 named like the index file with '.attr' appended to the name.
2529 *) Generate muti valued AVAs using '+' notation in config files for
2533 *) Support for nameConstraints certificate extension.
2536 *) Support for policyConstraints certificate extension.
2539 *) Support for policyMappings certificate extension.
2542 *) Make sure the default DSA_METHOD implementation only uses its
2543 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2544 and change its own handlers to be NULL so as to remove unnecessary
2545 indirection. This lets alternative implementations fallback to the
2546 default implementation more easily.
2549 *) Support for directoryName in GeneralName related extensions
2553 *) Make it possible to link applications using Makefile.shared.
2554 Make that possible even when linking against static libraries!
2557 *) Support for single pass processing for S/MIME signing. This now
2558 means that S/MIME signing can be done from a pipe, in addition
2559 cleartext signing (multipart/signed type) is effectively streaming
2560 and the signed data does not need to be all held in memory.
2562 This is done with a new flag PKCS7_STREAM. When this flag is set
2563 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2564 is done after the data is output (and digests calculated) in
2565 SMIME_write_PKCS7().
2568 *) Add full support for -rpath/-R, both in shared libraries and
2569 applications, at least on the platforms where it's known how
2573 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2574 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2575 will now compute a table of multiples of the generator that
2576 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2577 faster (notably in the case of a single point multiplication,
2578 scalar * generator).
2579 [Nils Larsch, Bodo Moeller]
2581 *) IPv6 support for certificate extensions. The various extensions
2582 which use the IP:a.b.c.d can now take IPv6 addresses using the
2583 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2587 *) Added an ENGINE that implements RSA by performing private key
2588 exponentiations with the GMP library. The conversions to and from
2589 GMP's mpz_t format aren't optimised nor are any montgomery forms
2590 cached, and on x86 it appears OpenSSL's own performance has caught up.
2591 However there are likely to be other architectures where GMP could
2592 provide a boost. This ENGINE is not built in by default, but it can be
2593 specified at Configure time and should be accompanied by the necessary
2594 linker additions, eg;
2595 ./config -DOPENSSL_USE_GMP -lgmp
2598 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2599 testing availability of engines with "-t" - the old behaviour is
2600 produced by increasing the feature's verbosity with "-tt".
2603 *) ECDSA routines: under certain error conditions uninitialized BN objects
2604 could be freed. Solution: make sure initialization is performed early
2605 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2609 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2610 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2611 software implementations. For DSA and DH, parameter generation can
2612 also be overriden by providing the appropriate method callbacks.
2615 *) Change the "progress" mechanism used in key-generation and
2616 primality testing to functions that take a new BN_GENCB pointer in
2617 place of callback/argument pairs. The new API functions have "_ex"
2618 postfixes and the older functions are reimplemented as wrappers for
2619 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2620 declarations of the old functions to help (graceful) attempts to
2621 migrate to the new functions. Also, the new key-generation API
2622 functions operate on a caller-supplied key-structure and return
2623 success/failure rather than returning a key or NULL - this is to
2624 help make "keygen" another member function of RSA_METHOD etc.
2626 Example for using the new callback interface:
2628 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2632 BN_GENCB_set(&my_cb, my_callback, my_arg);
2634 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2635 /* For the meaning of a, b in calls to my_callback(), see the
2636 * documentation of the function that calls the callback.
2637 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2638 * my_callback should return 1 if it wants BN_is_prime_ex()
2639 * to continue, or 0 to stop.
2644 *) Change the ZLIB compression method to be stateful, and make it
2645 available to TLS with the number defined in
2646 draft-ietf-tls-compression-04.txt.
2649 *) Add the ASN.1 structures and functions for CertificatePair, which
2650 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2652 CertificatePair ::= SEQUENCE {
2653 forward [0] Certificate OPTIONAL,
2654 reverse [1] Certificate OPTIONAL,
2655 -- at least one of the pair shall be present -- }
2657 Also implement the PEM functions to read and write certificate
2658 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2660 This needed to be defined, mostly for the sake of the LDAP
2661 attribute crossCertificatePair, but may prove useful elsewhere as
2665 *) Make it possible to inhibit symlinking of shared libraries in
2666 Makefile.shared, for Cygwin's sake.
2669 *) Extend the BIGNUM API by creating a function
2670 void BN_set_negative(BIGNUM *a, int neg);
2671 and a macro that behave like
2672 int BN_is_negative(const BIGNUM *a);
2674 to avoid the need to access 'a->neg' directly in applications.
2677 *) Implement fast modular reduction for pseudo-Mersenne primes
2678 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2679 EC_GROUP_new_curve_GFp() will now automatically use this
2681 [Nils Larsch <nla@trustcenter.de>]
2683 *) Add new lock type (CRYPTO_LOCK_BN).
2686 *) Change the ENGINE framework to automatically load engines
2687 dynamically from specific directories unless they could be
2688 found to already be built in or loaded. Move all the
2689 current engines except for the cryptodev one to a new
2691 The engines in engines/ are built as shared libraries if
2692 the "shared" options was given to ./Configure or ./config.
2693 Otherwise, they are inserted in libcrypto.a.
2694 /usr/local/ssl/engines is the default directory for dynamic
2695 engines, but that can be overriden at configure time through
2696 the usual use of --prefix and/or --openssldir, and at run
2697 time with the environment variable OPENSSL_ENGINES.
2698 [Geoff Thorpe and Richard Levitte]
2700 *) Add Makefile.shared, a helper makefile to build shared
2701 libraries. Addapt Makefile.org.
2704 *) Add version info to Win32 DLLs.
2705 [Peter 'Luna' Runestig" <peter@runestig.com>]
2707 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2708 can be added using this API to created arbitrary PKCS#12
2709 files while avoiding the low level API.
2711 New options to PKCS12_create(), key or cert can be NULL and
2712 will then be omitted from the output file. The encryption
2713 algorithm NIDs can be set to -1 for no encryption, the mac
2714 iteration count can be set to 0 to omit the mac.
2716 Enhance pkcs12 utility by making the -nokeys and -nocerts
2717 options work when creating a PKCS#12 file. New option -nomac
2718 to omit the mac, NONE can be set for an encryption algorithm.
2719 New code is modified to use the enhanced PKCS12_create()
2720 instead of the low level API.
2723 *) Extend ASN1 encoder to support indefinite length constructed
2724 encoding. This can output sequences tags and octet strings in
2725 this form. Modify pk7_asn1.c to support indefinite length
2726 encoding. This is experimental and needs additional code to
2727 be useful, such as an ASN1 bio and some enhanced streaming
2730 Extend template encode functionality so that tagging is passed
2731 down to the template encoder.
2734 *) Let 'openssl req' fail if an argument to '-newkey' is not
2735 recognized instead of using RSA as a default.
2738 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2739 As these are not official, they are not included in "ALL";
2740 the "ECCdraft" ciphersuite group alias can be used to select them.
2741 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2743 *) Add ECDH engine support.
2744 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2746 *) Add ECDH in new directory crypto/ecdh/.
2747 [Douglas Stebila (Sun Microsystems Laboratories)]
2749 *) Let BN_rand_range() abort with an error after 100 iterations
2750 without success (which indicates a broken PRNG).
2753 *) Change BN_mod_sqrt() so that it verifies that the input value
2754 is really the square of the return value. (Previously,
2755 BN_mod_sqrt would show GIGO behaviour.)
2758 *) Add named elliptic curves over binary fields from X9.62, SECG,
2759 and WAP/WTLS; add OIDs that were still missing.
2761 [Sheueling Chang Shantz and Douglas Stebila
2762 (Sun Microsystems Laboratories)]
2764 *) Extend the EC library for elliptic curves over binary fields
2765 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2768 EC_GF2m_simple_method
2772 EC_GROUP_new_curve_GF2m
2773 EC_GROUP_set_curve_GF2m
2774 EC_GROUP_get_curve_GF2m
2775 EC_POINT_set_affine_coordinates_GF2m
2776 EC_POINT_get_affine_coordinates_GF2m
2777 EC_POINT_set_compressed_coordinates_GF2m
2779 Point compression for binary fields is disabled by default for
2780 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2783 As binary polynomials are represented as BIGNUMs, various members
2784 of the EC_GROUP and EC_POINT data structures can be shared
2785 between the implementations for prime fields and binary fields;
2786 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2787 are essentially identical to their ..._GFp counterparts.
2788 (For simplicity, the '..._GFp' prefix has been dropped from
2789 various internal method names.)
2791 An internal 'field_div' method (similar to 'field_mul' and
2792 'field_sqr') has been added; this is used only for binary fields.
2794 [Sheueling Chang Shantz and Douglas Stebila
2795 (Sun Microsystems Laboratories)]
2797 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2798 through methods ('mul', 'precompute_mult').
2800 The generic implementations (now internally called 'ec_wNAF_mul'
2801 and 'ec_wNAF_precomputed_mult') remain the default if these
2802 methods are undefined.
2804 [Sheueling Chang Shantz and Douglas Stebila
2805 (Sun Microsystems Laboratories)]
2807 *) New function EC_GROUP_get_degree, which is defined through
2808 EC_METHOD. For curves over prime fields, this returns the bit
2809 length of the modulus.
2811 [Sheueling Chang Shantz and Douglas Stebila
2812 (Sun Microsystems Laboratories)]
2814 *) New functions EC_GROUP_dup, EC_POINT_dup.
2815 (These simply call ..._new and ..._copy).
2817 [Sheueling Chang Shantz and Douglas Stebila
2818 (Sun Microsystems Laboratories)]
2820 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2821 Polynomials are represented as BIGNUMs (where the sign bit is not
2822 used) in the following functions [macros]:
2825 BN_GF2m_sub [= BN_GF2m_add]
2826 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2827 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2828 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2830 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2831 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2832 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2833 BN_GF2m_cmp [= BN_ucmp]
2835 (Note that only the 'mod' functions are actually for fields GF(2^m).
2836 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2838 For some functions, an the irreducible polynomial defining a
2839 field can be given as an 'unsigned int[]' with strictly
2840 decreasing elements giving the indices of those bits that are set;
2841 i.e., p[] represents the polynomial
2842 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2844 p[0] > p[1] > ... > p[k] = 0.
2845 This applies to the following functions:
2850 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2851 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2853 BN_GF2m_mod_sqrt_arr
2854 BN_GF2m_mod_solve_quad_arr
2858 Conversion can be performed by the following functions:
2863 bntest.c has additional tests for binary polynomial arithmetic.
2865 Two implementations for BN_GF2m_mod_div() are available.
2866 The default algorithm simply uses BN_GF2m_mod_inv() and
2867 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2868 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2869 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2871 [Sheueling Chang Shantz and Douglas Stebila
2872 (Sun Microsystems Laboratories)]
2874 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2875 functionality is disabled at compile-time.
2876 [Douglas Stebila <douglas.stebila@sun.com>]
2878 *) Change default behaviour of 'openssl asn1parse' so that more
2879 information is visible when viewing, e.g., a certificate:
2881 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2882 mode the content of non-printable OCTET STRINGs is output in a
2883 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2884 avoid the appearance of a printable string.
2885 [Nils Larsch <nla@trustcenter.de>]
2887 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2889 EC_GROUP_set_asn1_flag()
2890 EC_GROUP_get_asn1_flag()
2891 EC_GROUP_set_point_conversion_form()
2892 EC_GROUP_get_point_conversion_form()
2893 These control ASN1 encoding details:
2894 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2895 has been set to OPENSSL_EC_NAMED_CURVE.
2896 - Points are encoded in uncompressed form by default; options for
2897 asn1_for are as for point2oct, namely
2898 POINT_CONVERSION_COMPRESSED
2899 POINT_CONVERSION_UNCOMPRESSED
2900 POINT_CONVERSION_HYBRID
2902 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2905 EC_GROUP_get0_seed()
2906 EC_GROUP_get_seed_len()
2907 This is used only for ASN1 purposes (so far).
2908 [Nils Larsch <nla@trustcenter.de>]
2910 *) Add 'field_type' member to EC_METHOD, which holds the NID
2911 of the appropriate field type OID. The new function
2912 EC_METHOD_get_field_type() returns this value.
2913 [Nils Larsch <nla@trustcenter.de>]
2918 EC_POINT_point2hex()
2919 EC_POINT_hex2point()
2920 providing useful interfaces to EC_POINT_point2oct() and
2921 EC_POINT_oct2point().
2922 [Nils Larsch <nla@trustcenter.de>]
2924 *) Change internals of the EC library so that the functions
2925 EC_GROUP_set_generator()
2926 EC_GROUP_get_generator()
2927 EC_GROUP_get_order()
2928 EC_GROUP_get_cofactor()
2929 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2930 to methods, which would lead to unnecessary code duplication when
2931 adding different types of curves.
2932 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2934 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2935 arithmetic, and such that modified wNAFs are generated
2936 (which avoid length expansion in many cases).
2939 *) Add a function EC_GROUP_check_discriminant() (defined via
2940 EC_METHOD) that verifies that the curve discriminant is non-zero.
2942 Add a function EC_GROUP_check() that makes some sanity tests
2943 on a EC_GROUP, its generator and order. This includes
2944 EC_GROUP_check_discriminant().
2945 [Nils Larsch <nla@trustcenter.de>]
2947 *) Add ECDSA in new directory crypto/ecdsa/.
2949 Add applications 'openssl ecparam' and 'openssl ecdsa'
2950 (these are based on 'openssl dsaparam' and 'openssl dsa').
2952 ECDSA support is also included in various other files across the
2953 library. Most notably,
2954 - 'openssl req' now has a '-newkey ecdsa:file' option;
2955 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2956 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2957 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2958 them suitable for ECDSA where domain parameters must be
2959 extracted before the specific public key;
2960 - ECDSA engine support has been added.
2961 [Nils Larsch <nla@trustcenter.de>]
2963 *) Include some named elliptic curves, and add OIDs from X9.62,
2964 SECG, and WAP/WTLS. Each curve can be obtained from the new
2966 EC_GROUP_new_by_curve_name(),
2967 and the list of available named curves can be obtained with
2968 EC_get_builtin_curves().
2969 Also add a 'curve_name' member to EC_GROUP objects, which can be
2971 EC_GROUP_set_curve_name()
2972 EC_GROUP_get_curve_name()
2973 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2975 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2976 was actually never needed) and in BN_mul(). The removal in BN_mul()
2977 required a small change in bn_mul_part_recursive() and the addition
2978 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2979 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2980 bn_sub_words() and bn_add_words() except they take arrays with
2984 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2986 *) Cleanse PEM buffers before freeing them since they may contain
2988 [Benjamin Bennett <ben@psc.edu>]
2990 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2991 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2992 authentication-only ciphersuites.
2995 *) Since AES128 and AES256 share a single mask bit in the logic of
2996 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2997 kludge to work properly if AES128 is available and AES256 isn't.
3000 *) Expand security boundary to match 1.1.1 module.
3003 *) Remove redundant features: hash file source, editing of test vectors
3004 modify fipsld to use external fips_premain.c signature.
3007 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3008 run algorithm test programs.
3011 *) Make algorithm test programs more tolerant of whitespace.
3014 *) Have SSL/TLS server implementation tolerate "mismatched" record
3015 protocol version while receiving ClientHello even if the
3016 ClientHello is fragmented. (The server can't insist on the
3017 particular protocol version it has chosen before the ServerHello
3018 message has informed the client about his choice.)
3021 *) Load error codes if they are not already present instead of using a
3022 static variable. This allows them to be cleanly unloaded and reloaded.
3025 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3027 *) Introduce limits to prevent malicious keys being able to
3028 cause a denial of service. (CVE-2006-2940)
3029 [Steve Henson, Bodo Moeller]
3031 *) Fix ASN.1 parsing of certain invalid structures that can result
3032 in a denial of service. (CVE-2006-2937) [Steve Henson]
3034 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3035 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3037 *) Fix SSL client code which could crash if connecting to a
3038 malicious SSLv2 server. (CVE-2006-4343)
3039 [Tavis Ormandy and Will Drewry, Google Security Team]
3041 *) Change ciphersuite string processing so that an explicit
3042 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3043 will no longer include "AES128-SHA"), and any other similar
3044 ciphersuite (same bitmap) from *other* protocol versions (so that
3045 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3046 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3047 changes from 0.9.8b and 0.9.8d.
3050 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3052 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3053 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3055 *) Change the Unix randomness entropy gathering to use poll() when
3056 possible instead of select(), since the latter has some
3057 undesirable limitations.
3058 [Darryl Miles via Richard Levitte and Bodo Moeller]
3060 *) Disable rogue ciphersuites:
3062 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3063 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3064 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3066 The latter two were purportedly from
3067 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3070 Also deactive the remaining ciphersuites from
3071 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3072 unofficial, and the ID has long expired.
3075 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3076 dual-core machines) and other potential thread-safety issues.
3079 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3081 *) Adapt fipsld and the build system to link against the validated FIPS
3082 module in FIPS mode.
3085 *) Fixes for VC++ 2005 build under Windows.
3088 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3089 from a Windows bash shell such as MSYS. It is autodetected from the
3090 "config" script when run from a VC++ environment. Modify standard VC++
3091 build to use fipscanister.o from the GNU make build.
3094 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3096 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3097 The value now differs depending on if you build for FIPS or not.
3098 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3099 safely run with a non-FIPSed libcrypto, as it may crash because of
3100 the difference induced by this change.
3103 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3105 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3106 (part of SSL_OP_ALL). This option used to disable the
3107 countermeasure against man-in-the-middle protocol-version
3108 rollback in the SSL 2.0 server implementation, which is a bad
3109 idea. (CVE-2005-2969)
3111 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3112 for Information Security, National Institute of Advanced Industrial
3113 Science and Technology [AIST], Japan)]
3115 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3116 mainly for FIPS compliance and not fully integrated at this stage.
3119 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3120 the exponentiation using a fixed-length exponent. (Otherwise,
3121 the information leaked through timing could expose the secret key
3122 after many signatures; cf. Bleichenbacher's attack on DSA with
3126 *) Make a new fixed-window mod_exp implementation the default for
3127 RSA, DSA, and DH private-key operations so that the sequence of
3128 squares and multiplies and the memory access pattern are
3129 independent of the particular secret key. This will mitigate
3130 cache-timing and potential related attacks.
3132 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3133 and this is automatically used by BN_mod_exp_mont() if the new flag
3134 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3135 will use this BN flag for private exponents unless the flag
3136 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3137 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3139 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3141 *) Change the client implementation for SSLv23_method() and
3142 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3143 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3144 (Previously, the SSL 2.0 backwards compatible Client Hello
3145 message format would be used even with SSL_OP_NO_SSLv2.)
3148 *) Add support for smime-type MIME parameter in S/MIME messages which some
3152 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3153 a threadsafe manner. Modify rsa code to use new function and add calls
3154 to dsa and dh code (which had race conditions before).
3157 *) Include the fixed error library code in the C error file definitions
3158 instead of fixing them up at runtime. This keeps the error code
3159 structures constant.
3162 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3164 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3167 *) Fixes for newer kerberos headers. NB: the casts are needed because
3168 the 'length' field is signed on one version and unsigned on another
3169 with no (?) obvious way to tell the difference, without these VC++
3170 complains. Also the "definition" of FAR (blank) is no longer included
3171 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3172 some needed definitions.
3175 *) Undo Cygwin change.
3178 *) Added support for proxy certificates according to RFC 3820.
3179 Because they may be a security thread to unaware applications,
3180 they must be explicitely allowed in run-time. See
3181 docs/HOWTO/proxy_certificates.txt for further information.
3184 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3186 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3187 server and client random values. Previously
3188 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3189 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3191 This change has negligible security impact because:
3193 1. Server and client random values still have 24 bytes of pseudo random
3196 2. Server and client random values are sent in the clear in the initial
3199 3. The master secret is derived using the premaster secret (48 bytes in
3200 size for static RSA ciphersuites) as well as client server and random
3203 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3206 [Stephen Henson, reported by UK NISCC]
3208 *) Use Windows randomness collection on Cygwin.
3211 *) Fix hang in EGD/PRNGD query when communication socket is closed
3212 prematurely by EGD/PRNGD.
3213 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3215 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3218 *) Back-port of selected performance improvements from development
3219 branch, as well as improved support for PowerPC platforms.
3222 *) Add lots of checks for memory allocation failure, error codes to indicate
3223 failure and freeing up memory if a failure occurs.
3224 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3226 *) Add new -passin argument to dgst.
3229 *) Perform some character comparisons of different types in X509_NAME_cmp:
3230 this is needed for some certificates that reencode DNs into UTF8Strings
3231 (in violation of RFC3280) and can't or wont issue name rollover
3235 *) Make an explicit check during certificate validation to see that
3236 the CA setting in each certificate on the chain is correct. As a
3237 side effect always do the following basic checks on extensions,
3238 not just when there's an associated purpose to the check:
3240 - if there is an unhandled critical extension (unless the user
3241 has chosen to ignore this fault)
3242 - if the path length has been exceeded (if one is set at all)
3243 - that certain extensions fit the associated purpose (if one has
3247 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3249 *) Avoid a race condition when CRLs are checked in a multi threaded
3250 environment. This would happen due to the reordering of the revoked
3251 entries during signature checking and serial number lookup. Now the
3252 encoding is cached and the serial number sort performed under a lock.
3253 Add new STACK function sk_is_sorted().
3256 *) Add Delta CRL to the extension code.
3259 *) Various fixes to s3_pkt.c so alerts are sent properly.
3260 [David Holmes <d.holmes@f5.com>]
3262 *) Reduce the chances of duplicate issuer name and serial numbers (in
3263 violation of RFC3280) using the OpenSSL certificate creation utilities.
3264 This is done by creating a random 64 bit value for the initial serial
3265 number when a serial number file is created or when a self signed
3266 certificate is created using 'openssl req -x509'. The initial serial
3267 number file is created using 'openssl x509 -next_serial' in CA.pl
3268 rather than being initialized to 1.
3271 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3273 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3274 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3275 [Joe Orton, Steve Henson]
3277 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3279 [Joe Orton, Steve Henson]
3281 *) Make it possible to have multiple active certificates with the same
3282 subject in the CA index file. This is done only if the keyword
3283 'unique_subject' is set to 'no' in the main CA section (default
3284 if 'CA_default') of the configuration file. The value is saved
3285 with the database itself in a separate index attribute file,
3286 named like the index file with '.attr' appended to the name.
3289 *) X509 verify fixes. Disable broken certificate workarounds when
3290 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3291 keyUsage extension present. Don't accept CRLs with unhandled critical
3292 extensions: since verify currently doesn't process CRL extensions this
3293 rejects a CRL with *any* critical extensions. Add new verify error codes
3297 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3298 A clarification of RFC2560 will require the use of OCTET STRINGs and
3299 some implementations cannot handle the current raw format. Since OpenSSL
3300 copies and compares OCSP nonces as opaque blobs without any attempt at
3301 parsing them this should not create any compatibility issues.
3304 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3305 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3306 this HMAC (and other) operations are several times slower than OpenSSL
3310 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3311 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3313 *) Use the correct content when signing type "other".
3316 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3318 *) Fix various bugs revealed by running the NISCC test suite:
3320 Stop out of bounds reads in the ASN1 code when presented with
3321 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3323 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3325 If verify callback ignores invalid public key errors don't try to check
3326 certificate signature with the NULL public key.
3330 *) New -ignore_err option in ocsp application to stop the server
3331 exiting on the first error in a request.
3334 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3335 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3339 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3340 extra data after the compression methods not only for TLS 1.0
3341 but also for SSL 3.0 (as required by the specification).
3342 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3344 *) Change X509_certificate_type() to mark the key as exported/exportable
3345 when it's 512 *bits* long, not 512 bytes.
3348 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3349 blocks during encryption.
3352 *) Various fixes to base64 BIO and non blocking I/O. On write
3353 flushes were not handled properly if the BIO retried. On read
3354 data was not being buffered properly and had various logic bugs.
3355 This also affects blocking I/O when the data being decoded is a
3359 *) Various S/MIME bugfixes and compatibility changes:
3360 output correct application/pkcs7 MIME type if
3361 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3362 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3363 of files as .eml work). Correctly handle very long lines in MIME
3367 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3369 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3370 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3371 a protocol version number mismatch like a decryption error
3372 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3375 *) Turn on RSA blinding by default in the default implementation
3376 to avoid a timing attack. Applications that don't want it can call
3377 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3378 They would be ill-advised to do so in most cases.
3379 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3381 *) Change RSA blinding code so that it works when the PRNG is not
3382 seeded (in this case, the secret RSA exponent is abused as
3383 an unpredictable seed -- if it is not unpredictable, there
3384 is no point in blinding anyway). Make RSA blinding thread-safe
3385 by remembering the creator's thread ID in rsa->blinding and
3386 having all other threads use local one-time blinding factors
3387 (this requires more computation than sharing rsa->blinding, but
3388 avoids excessive locking; and if an RSA object is not shared
3389 between threads, blinding will still be very fast).
3392 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3393 ENGINE as defaults for all supported algorithms irrespective of
3394 the 'flags' parameter. 'flags' is now honoured, so applications
3395 should make sure they are passing it correctly.
3398 *) Target "mingw" now allows native Windows code to be generated in
3399 the Cygwin environment as well as with the MinGW compiler.
3402 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3404 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3405 via timing by performing a MAC computation even if incorrrect
3406 block cipher padding has been found. This is a countermeasure
3407 against active attacks where the attacker has to distinguish
3408 between bad padding and a MAC verification error. (CVE-2003-0078)
3410 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3411 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3412 Martin Vuagnoux (EPFL, Ilion)]
3414 *) Make the no-err option work as intended. The intention with no-err
3415 is not to have the whole error stack handling routines removed from
3416 libcrypto, it's only intended to remove all the function name and
3417 reason texts, thereby removing some of the footprint that may not
3418 be interesting if those errors aren't displayed anyway.
3420 NOTE: it's still possible for any application or module to have it's
3421 own set of error texts inserted. The routines are there, just not
3422 used by default when no-err is given.
3425 *) Add support for FreeBSD on IA64.
3426 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3428 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3429 Kerberos function mit_des_cbc_cksum(). Before this change,
3430 the value returned by DES_cbc_cksum() was like the one from
3431 mit_des_cbc_cksum(), except the bytes were swapped.
3432 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3434 *) Allow an application to disable the automatic SSL chain building.
3435 Before this a rather primitive chain build was always performed in
3436 ssl3_output_cert_chain(): an application had no way to send the
3437 correct chain if the automatic operation produced an incorrect result.
3439 Now the chain builder is disabled if either:
3441 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3443 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3445 The reasoning behind this is that an application would not want the
3446 auto chain building to take place if extra chain certificates are
3447 present and it might also want a means of sending no additional
3448 certificates (for example the chain has two certificates and the
3452 *) Add the possibility to build without the ENGINE framework.
3453 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3455 *) Under Win32 gmtime() can return NULL: check return value in
3456 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3459 *) DSA routines: under certain error conditions uninitialized BN objects
3460 could be freed. Solution: make sure initialization is performed early
3461 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3462 Nils Larsch <nla@trustcenter.de> via PR#459)
3465 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3466 checked on reconnect on the client side, therefore session resumption
3467 could still fail with a "ssl session id is different" error. This
3468 behaviour is masked when SSL_OP_ALL is used due to
3469 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3470 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3471 followup to PR #377.
3474 *) IA-32 assembler support enhancements: unified ELF targets, support
3475 for SCO/Caldera platforms, fix for Cygwin shared build.
3478 *) Add support for FreeBSD on sparc64. As a consequence, support for
3479 FreeBSD on non-x86 processors is separate from x86 processors on
3480 the config script, much like the NetBSD support.
3481 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3483 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3485 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3488 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3489 code (06) was taken as the first octet of the session ID and the last
3490 octet was ignored consequently. As a result SSLv2 client side session
3491 caching could not have worked due to the session ID mismatch between
3493 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3497 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3498 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3502 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3503 seems that in spite of existing for more than a year, many application
3504 author have done nothing to provide the necessary callbacks, which
3505 means that this particular engine will not work properly anywhere.
3506 This is a very unfortunate situation which forces us, in the name
3507 of usability, to give the hw_ncipher.c a static lock, which is part
3509 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3510 appear in 0.9.8 or later. We EXPECT application authors to have
3511 dealt properly with this when 0.9.8 is released (unless we actually
3512 make such changes in the libcrypto locking code that changes will
3513 have to be made anyway).
3516 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3517 octets have been read, EOF or an error occurs. Without this change
3518 some truncated ASN1 structures will not produce an error.
3521 *) Disable Heimdal support, since it hasn't been fully implemented.
3522 Still give the possibility to force the use of Heimdal, but with
3523 warnings and a request that patches get sent to openssl-dev.
3526 *) Add the VC-CE target, introduce the WINCE sysname, and add
3527 INSTALL.WCE and appropriate conditionals to make it build.
3528 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3530 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3531 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3532 edit numbers of the version.
3533 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3535 *) Introduce safe string copy and catenation functions
3536 (BUF_strlcpy() and BUF_strlcat()).
3537 [Ben Laurie (CHATS) and Richard Levitte]
3539 *) Avoid using fixed-size buffers for one-line DNs.
3540 [Ben Laurie (CHATS)]
3542 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3543 resizing buffers containing secrets, and use where appropriate.
3544 [Ben Laurie (CHATS)]
3546 *) Avoid using fixed size buffers for configuration file location.
3547 [Ben Laurie (CHATS)]
3549 *) Avoid filename truncation for various CA files.
3550 [Ben Laurie (CHATS)]
3552 *) Use sizeof in preference to magic numbers.
3553 [Ben Laurie (CHATS)]
3555 *) Avoid filename truncation in cert requests.
3556 [Ben Laurie (CHATS)]
3558 *) Add assertions to check for (supposedly impossible) buffer
3560 [Ben Laurie (CHATS)]
3562 *) Don't cache truncated DNS entries in the local cache (this could
3563 potentially lead to a spoofing attack).
3564 [Ben Laurie (CHATS)]
3566 *) Fix various buffers to be large enough for hex/decimal
3567 representations in a platform independent manner.
3568 [Ben Laurie (CHATS)]
3570 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3571 resizing buffers containing secrets, and use where appropriate.
3572 [Ben Laurie (CHATS)]
3574 *) Add BIO_indent() to avoid much slightly worrying code to do
3576 [Ben Laurie (CHATS)]
3578 *) Convert sprintf()/BIO_puts() to BIO_printf().
3579 [Ben Laurie (CHATS)]
3581 *) buffer_gets() could terminate with the buffer only half
3583 [Ben Laurie (CHATS)]
3585 *) Add assertions to prevent user-supplied crypto functions from
3586 overflowing internal buffers by having large block sizes, etc.
3587 [Ben Laurie (CHATS)]
3589 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3591 [Ben Laurie (CHATS)]
3593 *) Eliminate unused copy of key in RC4.
3594 [Ben Laurie (CHATS)]
3596 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3597 [Ben Laurie (CHATS)]
3599 *) Fix off-by-one error in EGD path.
3600 [Ben Laurie (CHATS)]
3602 *) If RANDFILE path is too long, ignore instead of truncating.
3603 [Ben Laurie (CHATS)]
3605 *) Eliminate unused and incorrectly sized X.509 structure
3607 [Ben Laurie (CHATS)]
3609 *) Eliminate unused and dangerous function knumber().
3610 [Ben Laurie (CHATS)]
3612 *) Eliminate unused and dangerous structure, KSSL_ERR.
3613 [Ben Laurie (CHATS)]
3615 *) Protect against overlong session ID context length in an encoded
3616 session object. Since these are local, this does not appear to be
3618 [Ben Laurie (CHATS)]
3620 *) Change from security patch (see 0.9.6e below) that did not affect
3621 the 0.9.6 release series:
3623 Remote buffer overflow in SSL3 protocol - an attacker could
3624 supply an oversized master key in Kerberos-enabled versions.
3626 [Ben Laurie (CHATS)]
3628 *) Change the SSL kerb5 codes to match RFC 2712.
3631 *) Make -nameopt work fully for req and add -reqopt switch.
3632 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3634 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3635 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3637 *) Make sure tests can be performed even if the corresponding algorithms
3638 have been removed entirely. This was also the last step to make
3639 OpenSSL compilable with DJGPP under all reasonable conditions.
3640 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3642 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3643 to allow version independent disabling of normally unselected ciphers,
3644 which may be activated as a side-effect of selecting a single cipher.
3646 (E.g., cipher list string "RSA" enables ciphersuites that are left
3647 out of "ALL" because they do not provide symmetric encryption.
3648 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3649 [Lutz Jaenicke, Bodo Moeller]
3651 *) Add appropriate support for separate platform-dependent build
3652 directories. The recommended way to make a platform-dependent
3653 build directory is the following (tested on Linux), maybe with
3656 # Place yourself outside of the OpenSSL source tree. In
3657 # this example, the environment variable OPENSSL_SOURCE
3658 # is assumed to contain the absolute OpenSSL source directory.
3659 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3660 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3661 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3662 mkdir -p `dirname $F`
3663 ln -s $OPENSSL_SOURCE/$F $F
3666 To be absolutely sure not to disturb the source tree, a "make clean"
3667 is a good thing. If it isn't successfull, don't worry about it,
3668 it probably means the source directory is very clean.
3671 *) Make sure any ENGINE control commands make local copies of string
3672 pointers passed to them whenever necessary. Otherwise it is possible
3673 the caller may have overwritten (or deallocated) the original string
3674 data when a later ENGINE operation tries to use the stored values.
3675 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3677 *) Improve diagnostics in file reading and command-line digests.
3678 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3680 *) Add AES modes CFB and OFB to the object database. Correct an
3681 error in AES-CFB decryption.
3684 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3685 allows existing EVP_CIPHER_CTX structures to be reused after
3686 calling EVP_*Final(). This behaviour is used by encryption
3687 BIOs and some applications. This has the side effect that
3688 applications must explicitly clean up cipher contexts with
3689 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3692 *) Check the values of dna and dnb in bn_mul_recursive before calling
3693 bn_mul_comba (a non zero value means the a or b arrays do not contain
3694 n2 elements) and fallback to bn_mul_normal if either is not zero.
3697 *) Fix escaping of non-ASCII characters when using the -subj option
3698 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3701 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3702 form for "surname", serialNumber has no short form.
3703 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3704 therefore remove "mail" short name for "internet 7".
3705 The OID for unique identifiers in X509 certificates is
3706 x500UniqueIdentifier, not uniqueIdentifier.
3707 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3710 *) Add an "init" command to the ENGINE config module and auto initialize
3711 ENGINEs. Without any "init" command the ENGINE will be initialized
3712 after all ctrl commands have been executed on it. If init=1 the
3713 ENGINE is initailized at that point (ctrls before that point are run
3714 on the uninitialized ENGINE and after on the initialized one). If
3715 init=0 then the ENGINE will not be iniatialized at all.
3718 *) Fix the 'app_verify_callback' interface so that the user-defined
3719 argument is actually passed to the callback: In the
3720 SSL_CTX_set_cert_verify_callback() prototype, the callback
3721 declaration has been changed from
3724 int (*cb)(X509_STORE_CTX *,void *);
3725 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3726 i=s->ctx->app_verify_callback(&ctx)
3727 has been changed into
3728 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3730 To update applications using SSL_CTX_set_cert_verify_callback(),
3731 a dummy argument can be added to their callback functions.
3732 [D. K. Smetters <smetters@parc.xerox.com>]
3734 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3735 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3737 *) Add and OPENSSL_LOAD_CONF define which will cause
3738 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3739 This allows older applications to transparently support certain
3740 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3741 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3742 load the config file and OPENSSL_add_all_algorithms_conf() which will
3743 always load it have also been added.
3746 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3747 Adjust NIDs and EVP layer.
3748 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3750 *) Config modules support in openssl utility.
3752 Most commands now load modules from the config file,
3753 though in a few (such as version) this isn't done
3754 because it couldn't be used for anything.
3756 In the case of ca and req the config file used is
3757 the same as the utility itself: that is the -config
3758 command line option can be used to specify an
3762 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3763 use "openssl_conf" if filename is NULL use default openssl config file.
3766 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3767 config section name. Add a new flag to tolerate a missing config file
3768 and move code to CONF_modules_load_file().
3771 *) Support for crypto accelerator cards from Accelerated Encryption
3772 Processing, www.aep.ie. (Use engine 'aep')
3773 The support was copied from 0.9.6c [engine] and adapted/corrected
3774 to work with the new engine framework.
3775 [AEP Inc. and Richard Levitte]
3777 *) Support for SureWare crypto accelerator cards from Baltimore
3778 Technologies. (Use engine 'sureware')
3779 The support was copied from 0.9.6c [engine] and adapted
3780 to work with the new engine framework.
3783 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3784 make the newer ENGINE framework commands for the CHIL engine work.
3785 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3787 *) Make it possible to produce shared libraries on ReliantUNIX.
3788 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3790 *) Add the configuration target debug-linux-ppro.
3791 Make 'openssl rsa' use the general key loading routines
3792 implemented in apps.c, and make those routines able to
3793 handle the key format FORMAT_NETSCAPE and the variant
3795 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3797 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3798 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3800 *) Add -keyform to rsautl, and document -engine.
3801 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3803 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3804 BIO_R_NO_SUCH_FILE error code rather than the generic
3805 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3808 *) Add new functions
3810 ERR_peek_last_error_line
3811 ERR_peek_last_error_line_data.
3812 These are similar to
3815 ERR_peek_error_line_data,
3816 but report on the latest error recorded rather than the first one
3817 still in the error queue.
3818 [Ben Laurie, Bodo Moeller]
3820 *) default_algorithms option in ENGINE config module. This allows things
3822 default_algorithms = ALL
3823 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3826 *) Prelminary ENGINE config module.
3829 *) New experimental application configuration code.
3832 *) Change the AES code to follow the same name structure as all other
3833 symmetric ciphers, and behave the same way. Move everything to
3834 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3835 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3837 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3838 [Ben Laurie and Theo de Raadt]
3840 *) Add option to output public keys in req command.
3841 [Massimiliano Pala madwolf@openca.org]
3843 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3844 (up to about 10% better than before for P-192 and P-224).
3847 *) New functions/macros
3849 SSL_CTX_set_msg_callback(ctx, cb)
3850 SSL_CTX_set_msg_callback_arg(ctx, arg)
3851 SSL_set_msg_callback(ssl, cb)
3852 SSL_set_msg_callback_arg(ssl, arg)
3854 to request calling a callback function
3856 void cb(int write_p, int version, int content_type,
3857 const void *buf, size_t len, SSL *ssl, void *arg)
3859 whenever a protocol message has been completely received
3860 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3861 protocol version according to which the SSL library interprets
3862 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3863 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3864 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3865 specification (change_cipher_spec(20), alert(21), handshake(22)).
3866 'buf' and 'len' point to the actual message, 'ssl' to the
3867 SSL object, and 'arg' is the application-defined value set by
3868 SSL[_CTX]_set_msg_callback_arg().
3870 'openssl s_client' and 'openssl s_server' have new '-msg' options
3871 to enable a callback that displays all protocol messages.
3874 *) Change the shared library support so shared libraries are built as
3875 soon as the corresponding static library is finished, and thereby get
3876 openssl and the test programs linked against the shared library.
3877 This still only happens when the keyword "shard" has been given to
3878 the configuration scripts.
3880 NOTE: shared library support is still an experimental thing, and
3881 backward binary compatibility is still not guaranteed.
3882 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3884 *) Add support for Subject Information Access extension.
3885 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3887 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3888 additional bytes when new memory had to be allocated, not just
3889 when reusing an existing buffer.
3892 *) New command line and configuration option 'utf8' for the req command.
3893 This allows field values to be specified as UTF8 strings.
3896 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3897 runs for the former and machine-readable output for the latter.
3900 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3901 of the e-mail address in the DN (i.e., it will go into a certificate
3902 extension only). The new configuration file option 'email_in_dn = no'
3903 has the same effect.
3904 [Massimiliano Pala madwolf@openca.org]
3906 *) Change all functions with names starting with des_ to be starting
3907 with DES_ instead. Add wrappers that are compatible with libdes,
3908 but are named _ossl_old_des_*. Finally, add macros that map the
3909 des_* symbols to the corresponding _ossl_old_des_* if libdes
3910 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3911 desired, the des_* symbols will be mapped to DES_*, with one
3914 Since we provide two compatibility mappings, the user needs to
3915 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3916 compatibility is desired. The default (i.e., when that macro
3917 isn't defined) is OpenSSL 0.9.6c compatibility.
3919 There are also macros that enable and disable the support of old
3920 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3921 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3922 are defined, the default will apply: to support the old des routines.
3924 In either case, one must include openssl/des.h to get the correct
3925 definitions. Do not try to just include openssl/des_old.h, that
3928 NOTE: This is a major break of an old API into a new one. Software
3929 authors are encouraged to switch to the DES_ style functions. Some
3930 time in the future, des_old.h and the libdes compatibility functions
3931 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3932 default), and then completely removed.
3935 *) Test for certificates which contain unsupported critical extensions.
3936 If such a certificate is found during a verify operation it is
3937 rejected by default: this behaviour can be overridden by either
3938 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3939 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3940 X509_supported_extension() has also been added which returns 1 if a
3941 particular extension is supported.
3944 *) Modify the behaviour of EVP cipher functions in similar way to digests
3945 to retain compatibility with existing code.
3948 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3949 compatibility with existing code. In particular the 'ctx' parameter does
3950 not have to be to be initialized before the call to EVP_DigestInit() and
3951 it is tidied up after a call to EVP_DigestFinal(). New function
3952 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3953 EVP_MD_CTX_copy() changed to not require the destination to be
3954 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3955 requires the destination to be valid.
3957 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3958 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3961 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3962 so that complete 'Handshake' protocol structures are kept in memory
3963 instead of overwriting 'msg_type' and 'length' with 'body' data.
3966 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3967 [Massimo Santin via Richard Levitte]
3969 *) Major restructuring to the underlying ENGINE code. This includes
3970 reduction of linker bloat, separation of pure "ENGINE" manipulation
3971 (initialisation, etc) from functionality dealing with implementations
3972 of specific crypto iterfaces. This change also introduces integrated
3973 support for symmetric ciphers and digest implementations - so ENGINEs
3974 can now accelerate these by providing EVP_CIPHER and EVP_MD
3975 implementations of their own. This is detailed in crypto/engine/README
3976 as it couldn't be adequately described here. However, there are a few
3977 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3978 were changed in the original introduction of ENGINE code have now
3979 reverted back - the hooking from this code to ENGINE is now a good
3980 deal more passive and at run-time, operations deal directly with
3981 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3982 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3983 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3984 they were not being used by the framework as there is no concept of a
3985 BIGNUM_METHOD and they could not be generalised to the new
3986 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3987 ENGINE_cpy() has been removed as it cannot be consistently defined in
3991 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3994 *) Change mkdef.pl to sort symbols that get the same entry number,
3995 and make sure the automatically generated functions ERR_load_*
3996 become part of libeay.num as well.
3999 *) New function SSL_renegotiate_pending(). This returns true once
4000 renegotiation has been requested (either SSL_renegotiate() call
4001 or HelloRequest/ClientHello receveived from the peer) and becomes
4002 false once a handshake has been completed.
4003 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4004 sends a HelloRequest, but does not ensure that a handshake takes
4005 place. SSL_renegotiate_pending() is useful for checking if the
4006 client has followed the request.)
4009 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4010 By default, clients may request session resumption even during
4011 renegotiation (if session ID contexts permit); with this option,
4012 session resumption is possible only in the first handshake.
4014 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4015 more bits available for options that should not be part of
4016 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4019 *) Add some demos for certificate and certificate request creation.
4022 *) Make maximum certificate chain size accepted from the peer application
4023 settable (SSL*_get/set_max_cert_list()), as proposed by
4024 "Douglas E. Engert" <deengert@anl.gov>.
4027 *) Add support for shared libraries for Unixware-7
4028 (Boyd Lynn Gerber <gerberb@zenez.com>).
4031 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4032 be done prior to destruction. Use this to unload error strings from
4033 ENGINEs that load their own error strings. NB: This adds two new API
4034 functions to "get" and "set" this destroy handler in an ENGINE.
4037 *) Alter all existing ENGINE implementations (except "openssl" and
4038 "openbsd") to dynamically instantiate their own error strings. This
4039 makes them more flexible to be built both as statically-linked ENGINEs
4040 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4041 Also, add stub code to each that makes building them as self-contained
4042 shared-libraries easier (see README.ENGINE).
4045 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4046 implementations into applications that are completely implemented in
4047 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4048 commands that can be used to configure what shared-library to load and
4049 to control aspects of the way it is handled. Also, made an update to
4050 the README.ENGINE file that brings its information up-to-date and
4051 provides some information and instructions on the "dynamic" ENGINE
4052 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4055 *) Make it possible to unload ranges of ERR strings with a new
4056 "ERR_unload_strings" function.
4059 *) Add a copy() function to EVP_MD.
4062 *) Make EVP_MD routines take a context pointer instead of just the
4063 md_data void pointer.
4066 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4067 that the digest can only process a single chunk of data
4068 (typically because it is provided by a piece of
4069 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4070 is only going to provide a single chunk of data, and hence the
4071 framework needn't accumulate the data for oneshot drivers.
4074 *) As with "ERR", make it possible to replace the underlying "ex_data"
4075 functions. This change also alters the storage and management of global
4076 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4077 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4078 index counters. The API functions that use this state have been changed
4079 to take a "class_index" rather than pointers to the class's local STACK
4080 and counter, and there is now an API function to dynamically create new
4081 classes. This centralisation allows us to (a) plug a lot of the
4082 thread-safety problems that existed, and (b) makes it possible to clean
4083 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4084 such data would previously have always leaked in application code and
4085 workarounds were in place to make the memory debugging turn a blind eye
4086 to it. Application code that doesn't use this new function will still
4087 leak as before, but their memory debugging output will announce it now
4088 rather than letting it slide.
4090 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4091 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4092 has a return value to indicate success or failure.
4095 *) Make it possible to replace the underlying "ERR" functions such that the
4096 global state (2 LHASH tables and 2 locks) is only used by the "default"
4097 implementation. This change also adds two functions to "get" and "set"
4098 the implementation prior to it being automatically set the first time
4099 any other ERR function takes place. Ie. an application can call "get",
4100 pass the return value to a module it has just loaded, and that module
4101 can call its own "set" function using that value. This means the
4102 module's "ERR" operations will use (and modify) the error state in the
4103 application and not in its own statically linked copy of OpenSSL code.
4106 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4107 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4108 the operation, and provides a more encapsulated way for external code
4109 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4110 to use these functions rather than manually incrementing the counts.
4112 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4115 *) Add EVP test program.
4118 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4121 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4122 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4123 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4124 These allow a CRL to be built without having to access X509_CRL fields
4125 directly. Modify 'ca' application to use new functions.
4128 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4129 bug workarounds. Rollback attack detection is a security feature.
4130 The problem will only arise on OpenSSL servers when TLSv1 is not
4131 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4132 Software authors not wanting to support TLSv1 will have special reasons
4133 for their choice and can explicitly enable this option.
4134 [Bodo Moeller, Lutz Jaenicke]
4136 *) Rationalise EVP so it can be extended: don't include a union of
4137 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4138 (similar to those existing for EVP_CIPHER_CTX).
4143 EVP_MD_CTX_init(&md); /* new function call */
4144 EVP_DigestInit(&md, EVP_sha1());
4145 EVP_DigestUpdate(&md, in, len);
4146 EVP_DigestFinal(&md, out, NULL);
4147 EVP_MD_CTX_cleanup(&md); /* new function call */
4151 *) Make DES key schedule conform to the usual scheme, as well as
4152 correcting its structure. This means that calls to DES functions
4153 now have to pass a pointer to a des_key_schedule instead of a
4154 plain des_key_schedule (which was actually always a pointer
4157 des_key_schedule ks;
4159 des_set_key_checked(..., &ks);
4160 des_ncbc_encrypt(..., &ks, ...);
4162 (Note that a later change renames 'des_...' into 'DES_...'.)
4165 *) Initial reduction of linker bloat: the use of some functions, such as
4166 PEM causes large amounts of unused functions to be linked in due to
4167 poor organisation. For example pem_all.c contains every PEM function
4168 which has a knock on effect of linking in large amounts of (unused)
4169 ASN1 code. Grouping together similar functions and splitting unrelated
4170 functions prevents this.
4173 *) Cleanup of EVP macros.
4176 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4177 correct _ecb suffix.
4180 *) Add initial OCSP responder support to ocsp application. The
4181 revocation information is handled using the text based index
4182 use by the ca application. The responder can either handle
4183 requests generated internally, supplied in files (for example
4184 via a CGI script) or using an internal minimal server.
4187 *) Add configuration choices to get zlib compression for TLS.
4190 *) Changes to Kerberos SSL for RFC 2712 compliance:
4191 1. Implemented real KerberosWrapper, instead of just using
4192 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4193 2. Implemented optional authenticator field of KerberosWrapper.
4195 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4196 and authenticator structs; see crypto/krb5/.
4198 Generalized Kerberos calls to support multiple Kerberos libraries.
4199 [Vern Staats <staatsvr@asc.hpc.mil>,
4200 Jeffrey Altman <jaltman@columbia.edu>
4201 via Richard Levitte]
4203 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4204 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4205 values for each of the key sizes rather than having just
4206 parameters (and 'speed' generating keys each time).
4209 *) Speed up EVP routines.
4212 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4213 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4214 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4215 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4217 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4218 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4219 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4222 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4224 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4227 *) Added the OS2-EMX target.
4228 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4230 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4231 to support NCONF routines in extension code. New function CONF_set_nconf()
4232 to allow functions which take an NCONF to also handle the old LHASH
4233 structure: this means that the old CONF compatible routines can be
4234 retained (in particular wrt extensions) without having to duplicate the
4235 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4238 *) Enhance the general user interface with mechanisms for inner control
4239 and with possibilities to have yes/no kind of prompts.
4242 *) Change all calls to low level digest routines in the library and
4243 applications to use EVP. Add missing calls to HMAC_cleanup() and
4244 don't assume HMAC_CTX can be copied using memcpy().
4245 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4247 *) Add the possibility to control engines through control names but with
4248 arbitrary arguments instead of just a string.
4249 Change the key loaders to take a UI_METHOD instead of a callback
4250 function pointer. NOTE: this breaks binary compatibility with earlier
4251 versions of OpenSSL [engine].
4252 Adapt the nCipher code for these new conditions and add a card insertion
4256 *) Enhance the general user interface with mechanisms to better support
4257 dialog box interfaces, application-defined prompts, the possibility
4258 to use defaults (for example default passwords from somewhere else)
4259 and interrupts/cancellations.
4262 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4263 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4266 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4267 tidy up some unnecessarily weird code in 'sk_new()').
4268 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4270 *) Change the key loading routines for ENGINEs to use the same kind
4271 callback (pem_password_cb) as all other routines that need this
4275 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4276 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4277 than this minimum value is recommended.
4280 *) New random seeder for OpenVMS, using the system process statistics
4281 that are easily reachable.
4284 *) Windows apparently can't transparently handle global
4285 variables defined in DLLs. Initialisations such as:
4287 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4289 wont compile. This is used by the any applications that need to
4290 declare their own ASN1 modules. This was fixed by adding the option
4291 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4292 needed for static libraries under Win32.
4295 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4296 setting of purpose and trust fields. New X509_STORE trust and
4297 purpose functions and tidy up setting in other SSL functions.
4300 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4301 structure. These are inherited by X509_STORE_CTX when it is
4302 initialised. This allows various defaults to be set in the
4303 X509_STORE structure (such as flags for CRL checking and custom
4304 purpose or trust settings) for functions which only use X509_STORE_CTX
4305 internally such as S/MIME.
4307 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4308 trust settings if they are not set in X509_STORE. This allows X509_STORE
4309 purposes and trust (in S/MIME for example) to override any set by default.
4311 Add command line options for CRL checking to smime, s_client and s_server
4315 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4316 are set then the CRL is looked up in the X509_STORE structure and
4317 its validity and signature checked, then if the certificate is found
4318 in the CRL the verify fails with a revoked error.
4320 Various new CRL related callbacks added to X509_STORE_CTX structure.
4322 Command line options added to 'verify' application to support this.
4324 This needs some additional work, such as being able to handle multiple
4325 CRLs with different times, extension based lookup (rather than just
4326 by subject name) and ultimately more complete V2 CRL extension
4330 *) Add a general user interface API (crypto/ui/). This is designed
4331 to replace things like des_read_password and friends (backward
4332 compatibility functions using this new API are provided).
4333 The purpose is to remove prompting functions from the DES code
4334 section as well as provide for prompting through dialog boxes in
4335 a window system and the like.
4338 *) Add "ex_data" support to ENGINE so implementations can add state at a
4339 per-structure level rather than having to store it globally.
4342 *) Make it possible for ENGINE structures to be copied when retrieved by
4343 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4344 This causes the "original" ENGINE structure to act like a template,
4345 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4346 operational state can be localised to each ENGINE structure, despite the
4347 fact they all share the same "methods". New ENGINE structures returned in
4348 this case have no functional references and the return value is the single
4349 structural reference. This matches the single structural reference returned
4350 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4354 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4355 needs to match any other type at all we need to manually clear the
4359 *) Changes to the "openssl engine" utility to include;
4360 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4361 about an ENGINE's available control commands.
4362 - executing control commands from command line arguments using the
4363 '-pre' and '-post' switches. '-post' is only used if '-t' is
4364 specified and the ENGINE is successfully initialised. The syntax for
4365 the individual commands are colon-separated, for example;
4366 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4369 *) New dynamic control command support for ENGINEs. ENGINEs can now
4370 declare their own commands (numbers), names (strings), descriptions,
4371 and input types for run-time discovery by calling applications. A
4372 subset of these commands are implicitly classed as "executable"
4373 depending on their input type, and only these can be invoked through
4374 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4375 can be based on user input, config files, etc). The distinction is
4376 that "executable" commands cannot return anything other than a boolean
4377 result and can only support numeric or string input, whereas some
4378 discoverable commands may only be for direct use through
4379 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4380 pointers, or other custom uses. The "executable" commands are to
4381 support parameterisations of ENGINE behaviour that can be
4382 unambiguously defined by ENGINEs and used consistently across any
4383 OpenSSL-based application. Commands have been added to all the
4384 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4385 control over shared-library paths without source code alterations.
4388 *) Changed all ENGINE implementations to dynamically allocate their
4389 ENGINEs rather than declaring them statically. Apart from this being
4390 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4391 this also allows the implementations to compile without using the
4392 internal engine_int.h header.
4395 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4396 'const' value. Any code that should be able to modify a RAND_METHOD
4397 should already have non-const pointers to it (ie. they should only
4398 modify their own ones).
4401 *) Made a variety of little tweaks to the ENGINE code.
4402 - "atalla" and "ubsec" string definitions were moved from header files
4403 to C code. "nuron" string definitions were placed in variables
4404 rather than hard-coded - allowing parameterisation of these values
4405 later on via ctrl() commands.
4406 - Removed unused "#if 0"'d code.
4407 - Fixed engine list iteration code so it uses ENGINE_free() to release
4408 structural references.
4409 - Constified the RAND_METHOD element of ENGINE structures.
4410 - Constified various get/set functions as appropriate and added
4411 missing functions (including a catch-all ENGINE_cpy that duplicates
4412 all ENGINE values onto a new ENGINE except reference counts/state).
4413 - Removed NULL parameter checks in get/set functions. Setting a method
4414 or function to NULL is a way of cancelling out a previously set
4415 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4416 and doesn't justify the extra error symbols and code.
4417 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4418 flags from engine_int.h to engine.h.
4419 - Changed prototypes for ENGINE handler functions (init(), finish(),
4420 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4423 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4424 to the algorithm using long division. The binary algorithm can be
4425 used only if the modulus is odd. On 32-bit systems, it is faster
4426 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4427 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4428 up to 450 bits. In 64-bit environments, the binary algorithm
4429 appears to be advantageous for much longer moduli; here we use it
4430 for moduli up to 2048 bits.
4433 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4434 could not support the combine flag in choice fields.
4437 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4438 extensions from a certificate request to the certificate.
4441 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4442 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4443 file: this allows the display of the certificate about to be
4444 signed to be customised, to allow certain fields to be included
4445 or excluded and extension details. The old system didn't display
4446 multicharacter strings properly, omitted fields not in the policy
4447 and couldn't display additional details such as extensions.
4450 *) Function EC_POINTs_mul for multiple scalar multiplication
4451 of an arbitrary number of elliptic curve points
4452 \sum scalars[i]*points[i],
4453 optionally including the generator defined for the EC_GROUP:
4454 scalar*generator + \sum scalars[i]*points[i].
4456 EC_POINT_mul is a simple wrapper function for the typical case
4457 that the point list has just one item (besides the optional
4461 *) First EC_METHODs for curves over GF(p):
4463 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4464 operations and provides various method functions that can also
4465 operate with faster implementations of modular arithmetic.
4467 EC_GFp_mont_method() reuses most functions that are part of
4468 EC_GFp_simple_method, but uses Montgomery arithmetic.
4470 [Bodo Moeller; point addition and point doubling
4471 implementation directly derived from source code provided by
4472 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4474 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4475 crypto/ec/ec_lib.c):
4477 Curves are EC_GROUP objects (with an optional group generator)
4478 based on EC_METHODs that are built into the library.
4480 Points are EC_POINT objects based on EC_GROUP objects.
4482 Most of the framework would be able to handle curves over arbitrary
4483 finite fields, but as there are no obvious types for fields other
4484 than GF(p), some functions are limited to that for now.
4487 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4488 that the file contains a complete HTTP response.
4491 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4492 change the def and num file printf format specifier from "%-40sXXX"
4493 to "%-39s XXX". The latter will always guarantee a space after the
4494 field while the former will cause them to run together if the field
4495 is 40 of more characters long.
4498 *) Constify the cipher and digest 'method' functions and structures
4499 and modify related functions to take constant EVP_MD and EVP_CIPHER
4503 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4504 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4507 *) Modify EVP_Digest*() routines so they now return values. Although the
4508 internal software routines can never fail additional hardware versions
4512 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4514 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4515 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4518 ERR_R_NESTED_ASN1_ERROR
4520 ERR_R_MISSING_ASN1_EOS
4521 were 4 .. 9, conflicting with
4522 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4524 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4525 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4527 Add new error code 'ERR_R_INTERNAL_ERROR'.
4530 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4534 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4535 sets the subject name for a new request or supersedes the
4536 subject name in a given request. Formats that can be parsed are
4537 'CN=Some Name, OU=myOU, C=IT'
4539 'CN=Some Name/OU=myOU/C=IT'.
4541 Add options '-batch' and '-verbose' to 'openssl req'.
4542 [Massimiliano Pala <madwolf@hackmasters.net>]
4544 *) Introduce the possibility to access global variables through
4545 functions on platform were that's the best way to handle exporting
4546 global variables in shared libraries. To enable this functionality,
4547 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4548 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4549 is normally done by Configure or something similar).
4551 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4552 in the source file (foo.c) like this:
4554 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4555 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4557 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4558 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4560 OPENSSL_DECLARE_GLOBAL(int,foo);
4561 #define foo OPENSSL_GLOBAL_REF(foo)
4562 OPENSSL_DECLARE_GLOBAL(double,bar);
4563 #define bar OPENSSL_GLOBAL_REF(bar)
4565 The #defines are very important, and therefore so is including the
4566 header file everywhere where the defined globals are used.
4568 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4569 of ASN.1 items, but that structure is a bit different.
4571 The largest change is in util/mkdef.pl which has been enhanced with
4572 better and easier to understand logic to choose which symbols should
4573 go into the Windows .def files as well as a number of fixes and code
4574 cleanup (among others, algorithm keywords are now sorted
4575 lexicographically to avoid constant rewrites).
4578 *) In BN_div() keep a copy of the sign of 'num' before writing the
4579 result to 'rm' because if rm==num the value will be overwritten
4580 and produce the wrong result if 'num' is negative: this caused
4581 problems with BN_mod() and BN_nnmod().
4584 *) Function OCSP_request_verify(). This checks the signature on an
4585 OCSP request and verifies the signer certificate. The signer
4586 certificate is just checked for a generic purpose and OCSP request
4590 *) Add OCSP_check_validity() function to check the validity of OCSP
4591 responses. OCSP responses are prepared in real time and may only
4592 be a few seconds old. Simply checking that the current time lies
4593 between thisUpdate and nextUpdate max reject otherwise valid responses
4594 caused by either OCSP responder or client clock inaccuracy. Instead
4595 we allow thisUpdate and nextUpdate to fall within a certain period of
4596 the current time. The age of the response can also optionally be
4597 checked. Two new options -validity_period and -status_age added to
4601 *) If signature or public key algorithm is unrecognized print out its
4602 OID rather that just UNKNOWN.
4605 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4606 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4607 ID to be generated from the issuer certificate alone which can then be
4608 passed to OCSP_id_issuer_cmp().
4611 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4612 ASN1 modules to export functions returning ASN1_ITEM pointers
4613 instead of the ASN1_ITEM structures themselves. This adds several
4614 new macros which allow the underlying ASN1 function/structure to
4615 be accessed transparently. As a result code should not use ASN1_ITEM
4616 references directly (such as &X509_it) but instead use the relevant
4617 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4618 use of the new ASN1 code on platforms where exporting structures
4619 is problematical (for example in shared libraries) but exporting
4620 functions returning pointers to structures is not.
4623 *) Add support for overriding the generation of SSL/TLS session IDs.
4624 These callbacks can be registered either in an SSL_CTX or per SSL.
4625 The purpose of this is to allow applications to control, if they wish,
4626 the arbitrary values chosen for use as session IDs, particularly as it
4627 can be useful for session caching in multiple-server environments. A
4628 command-line switch for testing this (and any client code that wishes
4629 to use such a feature) has been added to "s_server".
4630 [Geoff Thorpe, Lutz Jaenicke]
4632 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4633 of the form '#if defined(...) || defined(...) || ...' and
4634 '#if !defined(...) && !defined(...) && ...'. This also avoids
4635 the growing number of special cases it was previously handling.
4638 *) Make all configuration macros available for application by making
4639 sure they are available in opensslconf.h, by giving them names starting
4640 with "OPENSSL_" to avoid conflicts with other packages and by making
4641 sure e_os2.h will cover all platform-specific cases together with
4643 Additionally, it is now possible to define configuration/platform-
4644 specific names (called "system identities"). In the C code, these
4645 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4646 macro with the name beginning with "OPENSSL_SYS_", which is determined
4647 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4651 *) New option -set_serial to 'req' and 'x509' this allows the serial
4652 number to use to be specified on the command line. Previously self
4653 signed certificates were hard coded with serial number 0 and the
4654 CA options of 'x509' had to use a serial number in a file which was
4658 *) New options to 'ca' utility to support V2 CRL entry extensions.
4659 Currently CRL reason, invalidity date and hold instruction are
4660 supported. Add new CRL extensions to V3 code and some new objects.
4663 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4664 disable standard block padding (aka PKCS#5 padding) in the EVP
4665 API, which was previously mandatory. This means that the data is
4666 not padded in any way and so the total length much be a multiple
4667 of the block size, otherwise an error occurs.
4670 *) Initial (incomplete) OCSP SSL support.
4673 *) New function OCSP_parse_url(). This splits up a URL into its host,
4674 port and path components: primarily to parse OCSP URLs. New -url
4675 option to ocsp utility.
4678 *) New nonce behavior. The return value of OCSP_check_nonce() now
4679 reflects the various checks performed. Applications can decide
4680 whether to tolerate certain situations such as an absent nonce
4681 in a response when one was present in a request: the ocsp application
4682 just prints out a warning. New function OCSP_add1_basic_nonce()
4683 this is to allow responders to include a nonce in a response even if
4684 the request is nonce-less.
4687 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4688 skipped when using openssl x509 multiple times on a single input file,
4689 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4692 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4693 set string type: to handle setting ASN1_TIME structures. Fix ca
4694 utility to correctly initialize revocation date of CRLs.
4697 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4698 the clients preferred ciphersuites and rather use its own preferences.
4699 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4700 Internet Explorer by ensuring unchanged hash method during stepup.
4701 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4704 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4705 to aes and add a new 'exist' option to print out symbols that don't
4709 *) Additional options to ocsp utility to allow flags to be set and
4710 additional certificates supplied.
4713 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4714 OCSP client a number of certificate to only verify the response
4718 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4719 handle the new API. Currently only ECB, CBC modes supported. Add new
4722 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4723 Encryption Standard (AES) Ciphersuites for Transport Layer
4724 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4725 not enabled by default and were not part of the "ALL" ciphersuite
4726 alias because they were not yet official; they could be
4727 explicitly requested by specifying the "AESdraft" ciphersuite
4728 group alias. In the final release of OpenSSL 0.9.7, the group
4729 alias is called "AES" and is part of "ALL".)
4730 [Ben Laurie, Steve Henson, Bodo Moeller]
4732 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4733 request to response.
4736 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4737 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4738 extract information from a certificate request. OCSP_response_create()
4739 creates a response and optionally adds a basic response structure.
4740 OCSP_basic_add1_status() adds a complete single response to a basic
4741 response and returns the OCSP_SINGLERESP structure just added (to allow
4742 extensions to be included for example). OCSP_basic_add1_cert() adds a
4743 certificate to a basic response and OCSP_basic_sign() signs a basic
4744 response with various flags. New helper functions ASN1_TIME_check()
4745 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4746 (converts ASN1_TIME to GeneralizedTime).
4749 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4750 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4751 structure from a certificate. X509_pubkey_digest() digests the public_key
4752 contents: this is used in various key identifiers.
4755 *) Make sk_sort() tolerate a NULL argument.
4756 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4758 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4759 passed by the function are trusted implicitly. If any of them signed the
4760 response then it is assumed to be valid and is not verified.
4763 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4764 to data. This was previously part of the PKCS7 ASN1 code. This
4765 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4766 [Steve Henson, reported by Kenneth R. Robinette
4767 <support@securenetterm.com>]
4769 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4770 routines: without these tracing memory leaks is very painful.
4771 Fix leaks in PKCS12 and PKCS7 routines.
4774 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4775 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4776 effectively meant GeneralizedTime would never be used. Now it
4777 is initialised to -1 but X509_time_adj() now has to check the value
4778 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4779 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4780 [Steve Henson, reported by Kenneth R. Robinette
4781 <support@securenetterm.com>]
4783 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4784 result in a zero length in the ASN1_INTEGER structure which was
4785 not consistent with the structure when d2i_ASN1_INTEGER() was used
4786 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4787 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4788 where it did not print out a minus for negative ASN1_INTEGER.
4791 *) Add summary printout to ocsp utility. The various functions which
4792 convert status values to strings have been renamed to:
4793 OCSP_response_status_str(), OCSP_cert_status_str() and
4794 OCSP_crl_reason_str() and are no longer static. New options
4795 to verify nonce values and to disable verification. OCSP response
4796 printout format cleaned up.
4799 *) Add additional OCSP certificate checks. These are those specified
4800 in RFC2560. This consists of two separate checks: the CA of the
4801 certificate being checked must either be the OCSP signer certificate
4802 or the issuer of the OCSP signer certificate. In the latter case the
4803 OCSP signer certificate must contain the OCSP signing extended key
4804 usage. This check is performed by attempting to match the OCSP
4805 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4806 in the OCSP_CERTID structures of the response.
4809 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4810 and related routines. This uses the standard OpenSSL certificate
4811 verify routines to perform initial checks (just CA validity) and
4812 to obtain the certificate chain. Then additional checks will be
4813 performed on the chain. Currently the root CA is checked to see
4814 if it is explicitly trusted for OCSP signing. This is used to set
4815 a root CA as a global signing root: that is any certificate that
4816 chains to that CA is an acceptable OCSP signing certificate.
4819 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4820 extensions from a separate configuration file.
4821 As when reading extensions from the main configuration file,
4822 the '-extensions ...' option may be used for specifying the
4824 [Massimiliano Pala <madwolf@comune.modena.it>]
4826 *) New OCSP utility. Allows OCSP requests to be generated or
4827 read. The request can be sent to a responder and the output
4828 parsed, outputed or printed in text form. Not complete yet:
4829 still needs to check the OCSP response validity.
4832 *) New subcommands for 'openssl ca':
4833 'openssl ca -status <serial>' prints the status of the cert with
4834 the given serial number (according to the index file).
4835 'openssl ca -updatedb' updates the expiry status of certificates
4837 [Massimiliano Pala <madwolf@comune.modena.it>]
4839 *) New '-newreq-nodes' command option to CA.pl. This is like
4840 '-newreq', but calls 'openssl req' with the '-nodes' option
4841 so that the resulting key is not encrypted.
4842 [Damien Miller <djm@mindrot.org>]
4844 *) New configuration for the GNU Hurd.
4845 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4847 *) Initial code to implement OCSP basic response verify. This
4848 is currently incomplete. Currently just finds the signer's
4849 certificate and verifies the signature on the response.
4852 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4853 value of OPENSSLDIR. This is available via the new '-d' option
4854 to 'openssl version', and is also included in 'openssl version -a'.
4857 *) Allowing defining memory allocation callbacks that will be given
4858 file name and line number information in additional arguments
4859 (a const char* and an int). The basic functionality remains, as
4860 well as the original possibility to just replace malloc(),
4861 realloc() and free() by functions that do not know about these
4862 additional arguments. To register and find out the current
4863 settings for extended allocation functions, the following
4864 functions are provided:
4866 CRYPTO_set_mem_ex_functions
4867 CRYPTO_set_locked_mem_ex_functions
4868 CRYPTO_get_mem_ex_functions
4869 CRYPTO_get_locked_mem_ex_functions
4871 These work the same way as CRYPTO_set_mem_functions and friends.
4872 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4873 extended allocation function is enabled.
4874 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4875 a conventional allocation function is enabled.
4876 [Richard Levitte, Bodo Moeller]
4878 *) Finish off removing the remaining LHASH function pointer casts.
4879 There should no longer be any prototype-casting required when using
4880 the LHASH abstraction, and any casts that remain are "bugs". See
4881 the callback types and macros at the head of lhash.h for details
4882 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4885 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4886 If /dev/[u]random devices are not available or do not return enough
4887 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4889 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4890 /etc/entropy will be queried once each in this sequence, quering stops
4891 when enough entropy was collected without querying more sockets.
4894 *) Change the Unix RAND_poll() variant to be able to poll several
4895 random devices, as specified by DEVRANDOM, until a sufficient amount
4896 of data has been collected. We spend at most 10 ms on each file
4897 (select timeout) and read in non-blocking mode. DEVRANDOM now
4898 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4899 (previously it was just the string "/dev/urandom"), so on typical
4900 platforms the 10 ms delay will never occur.
4901 Also separate out the Unix variant to its own file, rand_unix.c.
4902 For VMS, there's a currently-empty rand_vms.c.
4905 *) Move OCSP client related routines to ocsp_cl.c. These
4906 provide utility functions which an application needing
4907 to issue a request to an OCSP responder and analyse the
4908 response will typically need: as opposed to those which an
4909 OCSP responder itself would need which will be added later.
4911 OCSP_request_sign() signs an OCSP request with an API similar
4912 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4913 response. OCSP_response_get1_basic() extracts basic response
4914 from response. OCSP_resp_find_status(): finds and extracts status
4915 information from an OCSP_CERTID structure (which will be created
4916 when the request structure is built). These are built from lower
4917 level functions which work on OCSP_SINGLERESP structures but
4918 wont normally be used unless the application wishes to examine
4919 extensions in the OCSP response for example.
4921 Replace nonce routines with a pair of functions.
4922 OCSP_request_add1_nonce() adds a nonce value and optionally
4923 generates a random value. OCSP_check_nonce() checks the
4924 validity of the nonce in an OCSP response.
4927 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4928 This doesn't copy the supplied OCSP_CERTID and avoids the
4929 need to free up the newly created id. Change return type
4930 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4931 This can then be used to add extensions to the request.
4932 Deleted OCSP_request_new(), since most of its functionality
4933 is now in OCSP_REQUEST_new() (and the case insensitive name
4934 clash) apart from the ability to set the request name which
4935 will be added elsewhere.
4938 *) Update OCSP API. Remove obsolete extensions argument from
4939 various functions. Extensions are now handled using the new
4940 OCSP extension code. New simple OCSP HTTP function which
4941 can be used to send requests and parse the response.
4944 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4945 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4946 uses the special reorder version of SET OF to sort the attributes
4947 and reorder them to match the encoded order. This resolves a long
4948 standing problem: a verify on a PKCS7 structure just after signing
4949 it used to fail because the attribute order did not match the
4950 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4951 it uses the received order. This is necessary to tolerate some broken
4952 software that does not order SET OF. This is handled by encoding
4953 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4954 to produce the required SET OF.
4957 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4958 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4959 files to get correct declarations of the ASN.1 item variables.
4962 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4963 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4964 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4965 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4966 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4967 ASN1_ITEM and no wrapper functions.
4970 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4971 replace the old function pointer based I/O routines. Change most of
4972 the *_d2i_bio() and *_d2i_fp() functions to use these.
4975 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4976 lines, recognice more "algorithms" that can be deselected, and make
4977 it complain about algorithm deselection that isn't recognised.
4980 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4981 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4982 to use new functions. Add NO_ASN1_OLD which can be set to remove
4983 some old style ASN1 functions: this can be used to determine if old
4984 code will still work when these eventually go away.
4987 *) New extension functions for OCSP structures, these follow the
4988 same conventions as certificates and CRLs.
4991 *) New function X509V3_add1_i2d(). This automatically encodes and
4992 adds an extension. Its behaviour can be customised with various
4993 flags to append, replace or delete. Various wrappers added for
4994 certifcates and CRLs.
4997 *) Fix to avoid calling the underlying ASN1 print routine when
4998 an extension cannot be parsed. Correct a typo in the
4999 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5002 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5003 entries for variables.
5006 *) Add functionality to apps/openssl.c for detecting locking
5007 problems: As the program is single-threaded, all we have
5008 to do is register a locking callback using an array for
5009 storing which locks are currently held by the program.
5012 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5013 SSL_get_ex_data_X509_STORE_idx(), which is used in
5014 ssl_verify_cert_chain() and thus can be called at any time
5015 during TLS/SSL handshakes so that thread-safety is essential.
5016 Unfortunately, the ex_data design is not at all suited
5017 for multi-threaded use, so it probably should be abolished.
5020 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5021 [Broadcom, tweaked and integrated by Geoff Thorpe]
5023 *) Move common extension printing code to new function
5024 X509V3_print_extensions(). Reorganise OCSP print routines and
5025 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5028 *) New function X509_signature_print() to remove duplication in some
5032 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5033 set (this was treated exactly the same as SET OF previously). This
5034 is used to reorder the STACK representing the structure to match the
5035 encoding. This will be used to get round a problem where a PKCS7
5036 structure which was signed could not be verified because the STACK
5037 order did not reflect the encoded order.
5040 *) Reimplement the OCSP ASN1 module using the new code.
5043 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5044 for its ASN1 operations. The old style function pointers still exist
5045 for now but they will eventually go away.
5048 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5049 completely replaces the old ASN1 functionality with a table driven
5050 encoder and decoder which interprets an ASN1_ITEM structure describing
5051 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5052 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5053 has also been converted to the new form.
5056 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5057 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5058 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5059 for negative moduli.
5062 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5063 of not touching the result's sign bit.
5066 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5070 *) Changed the LHASH code to use prototypes for callbacks, and created
5071 macros to declare and implement thin (optionally static) functions
5072 that provide type-safety and avoid function pointer casting for the
5073 type-specific callbacks.
5076 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5078 [Veers Staats <staatsvr@asc.hpc.mil>,
5079 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5081 *) Reformat the FAQ so the different questions and answers can be divided
5082 in sections depending on the subject.
5085 *) Have the zlib compression code load ZLIB.DLL dynamically under
5089 *) New function BN_mod_sqrt for computing square roots modulo a prime
5090 (using the probabilistic Tonelli-Shanks algorithm unless
5091 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5092 be handled deterministically).
5093 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5095 *) Make BN_mod_inverse faster by explicitly handling small quotients
5096 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5097 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5100 *) New function BN_kronecker.
5103 *) Fix BN_gcd so that it works on negative inputs; the result is
5104 positive unless both parameters are zero.
5105 Previously something reasonably close to an infinite loop was
5106 possible because numbers could be growing instead of shrinking
5107 in the implementation of Euclid's algorithm.
5110 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5111 sign of the number in question.
5113 Fix BN_is_word(a,w) to work correctly for w == 0.
5115 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5116 because its test if the absolute value of 'a' equals 'w'.
5117 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5118 it exists mostly for use in the implementations of BN_is_zero(),
5119 BN_is_one(), and BN_is_word().
5122 *) New function BN_swap.
5125 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5126 the exponentiation functions are more likely to produce reasonable
5127 results on negative inputs.
5130 *) Change BN_mod_mul so that the result is always non-negative.
5131 Previously, it could be negative if one of the factors was negative;
5132 I don't think anyone really wanted that behaviour.
5135 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5136 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5137 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5138 and add new functions:
5147 BN_mod_lshift1_quick
5151 These functions always generate non-negative results.
5153 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5154 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5156 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5157 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5158 be reduced modulo m.
5159 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5162 The following entry accidentily appeared in the CHANGES file
5163 distributed with OpenSSL 0.9.7. The modifications described in
5164 it do *not* apply to OpenSSL 0.9.7.
5166 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5167 was actually never needed) and in BN_mul(). The removal in BN_mul()
5168 required a small change in bn_mul_part_recursive() and the addition
5169 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5170 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5171 bn_sub_words() and bn_add_words() except they take arrays with
5176 *) In 'openssl passwd', verify passwords read from the terminal
5177 unless the '-salt' option is used (which usually means that
5178 verification would just waste user's time since the resulting
5179 hash is going to be compared with some given password hash)
5180 or the new '-noverify' option is used.
5182 This is an incompatible change, but it does not affect
5183 non-interactive use of 'openssl passwd' (passwords on the command
5184 line, '-stdin' option, '-in ...' option) and thus should not
5188 *) Remove all references to RSAref, since there's no more need for it.
5191 *) Make DSO load along a path given through an environment variable
5192 (SHLIB_PATH) with shl_load().
5195 *) Constify the ENGINE code as a result of BIGNUM constification.
5196 Also constify the RSA code and most things related to it. In a
5197 few places, most notable in the depth of the ASN.1 code, ugly
5198 casts back to non-const were required (to be solved at a later
5202 *) Make it so the openssl application has all engines loaded by default.
5205 *) Constify the BIGNUM routines a little more.
5208 *) Add the following functions:
5210 ENGINE_load_cswift()
5212 ENGINE_load_atalla()
5214 ENGINE_load_builtin_engines()
5216 That way, an application can itself choose if external engines that
5217 are built-in in OpenSSL shall ever be used or not. The benefit is
5218 that applications won't have to be linked with libdl or other dso
5219 libraries unless it's really needed.
5221 Changed 'openssl engine' to load all engines on demand.
5222 Changed the engine header files to avoid the duplication of some
5223 declarations (they differed!).
5226 *) 'openssl engine' can now list capabilities.
5229 *) Better error reporting in 'openssl engine'.
5232 *) Never call load_dh_param(NULL) in s_server.
5235 *) Add engine application. It can currently list engines by name and
5236 identity, and test if they are actually available.
5239 *) Improve RPM specification file by forcing symbolic linking and making
5240 sure the installed documentation is also owned by root.root.
5241 [Damien Miller <djm@mindrot.org>]
5243 *) Give the OpenSSL applications more possibilities to make use of
5244 keys (public as well as private) handled by engines.
5247 *) Add OCSP code that comes from CertCo.
5250 *) Add VMS support for the Rijndael code.
5253 *) Added untested support for Nuron crypto accelerator.
5256 *) Add support for external cryptographic devices. This code was
5257 previously distributed separately as the "engine" branch.
5258 [Geoff Thorpe, Richard Levitte]
5260 *) Rework the filename-translation in the DSO code. It is now possible to
5261 have far greater control over how a "name" is turned into a filename
5262 depending on the operating environment and any oddities about the
5263 different shared library filenames on each system.
5266 *) Support threads on FreeBSD-elf in Configure.
5269 *) Fix for SHA1 assembly problem with MASM: it produces
5270 warnings about corrupt line number information when assembling
5271 with debugging information. This is caused by the overlapping
5273 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5276 NCONF_get_number() has no error checking at all. As a replacement,
5277 NCONF_get_number_e() is defined (_e for "error checking") and is
5278 promoted strongly. The old NCONF_get_number is kept around for
5279 binary backward compatibility.
5280 Make it possible for methods to load from something other than a BIO,
5281 by providing a function pointer that is given a name instead of a BIO.
5282 For example, this could be used to load configuration data from an
5286 *) Fix for non blocking accept BIOs. Added new I/O special reason
5287 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5288 with non blocking I/O was not possible because no retry code was
5289 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5293 *) Added the beginnings of Rijndael support.
5296 *) Fix for bug in DirectoryString mask setting. Add support for
5297 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5298 to allow certificate printing to more controllable, additional
5299 'certopt' option to 'x509' to allow new printing options to be
5303 *) Clean old EAY MD5 hack from e_os.h.
5306 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5308 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5309 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5310 [Joe Orton, Steve Henson]
5312 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5314 *) Fix additional bug revealed by the NISCC test suite:
5316 Stop bug triggering large recursion when presented with
5317 certain ASN.1 tags (CVE-2003-0851)
5320 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5322 *) Fix various bugs revealed by running the NISCC test suite:
5324 Stop out of bounds reads in the ASN1 code when presented with
5325 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5327 If verify callback ignores invalid public key errors don't try to check
5328 certificate signature with the NULL public key.
5332 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5333 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5337 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5338 extra data after the compression methods not only for TLS 1.0
5339 but also for SSL 3.0 (as required by the specification).
5340 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5342 *) Change X509_certificate_type() to mark the key as exported/exportable
5343 when it's 512 *bits* long, not 512 bytes.
5346 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5348 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5349 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5350 a protocol version number mismatch like a decryption error
5351 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5354 *) Turn on RSA blinding by default in the default implementation
5355 to avoid a timing attack. Applications that don't want it can call
5356 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5357 They would be ill-advised to do so in most cases.
5358 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5360 *) Change RSA blinding code so that it works when the PRNG is not
5361 seeded (in this case, the secret RSA exponent is abused as
5362 an unpredictable seed -- if it is not unpredictable, there
5363 is no point in blinding anyway). Make RSA blinding thread-safe
5364 by remembering the creator's thread ID in rsa->blinding and
5365 having all other threads use local one-time blinding factors
5366 (this requires more computation than sharing rsa->blinding, but
5367 avoids excessive locking; and if an RSA object is not shared
5368 between threads, blinding will still be very fast).
5371 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5373 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5374 via timing by performing a MAC computation even if incorrrect
5375 block cipher padding has been found. This is a countermeasure
5376 against active attacks where the attacker has to distinguish
5377 between bad padding and a MAC verification error. (CVE-2003-0078)
5379 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5380 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5381 Martin Vuagnoux (EPFL, Ilion)]
5383 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5385 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5386 memory from it's contents. This is done with a counter that will
5387 place alternating values in each byte. This can be used to solve
5388 two issues: 1) the removal of calls to memset() by highly optimizing
5389 compilers, and 2) cleansing with other values than 0, since those can
5390 be read through on certain media, for example a swap space on disk.
5393 *) Bugfix: client side session caching did not work with external caching,
5394 because the session->cipher setting was not restored when reloading
5395 from the external cache. This problem was masked, when
5396 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5397 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5400 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5401 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5402 [Zeev Lieber <zeev-l@yahoo.com>]
5404 *) Undo an undocumented change introduced in 0.9.6e which caused
5405 repeated calls to OpenSSL_add_all_ciphers() and
5406 OpenSSL_add_all_digests() to be ignored, even after calling
5410 *) Change the default configuration reader to deal with last line not
5411 being properly terminated.
5414 *) Change X509_NAME_cmp() so it applies the special rules on handling
5415 DN values that are of type PrintableString, as well as RDNs of type
5416 emailAddress where the value has the type ia5String.
5417 [stefank@valicert.com via Richard Levitte]
5419 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5420 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5421 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5422 the bitwise-OR of the two for use by the majority of applications
5423 wanting this behaviour, and update the docs. The documented
5424 behaviour and actual behaviour were inconsistent and had been
5425 changing anyway, so this is more a bug-fix than a behavioural
5427 [Geoff Thorpe, diagnosed by Nadav Har'El]
5429 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5430 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5433 *) Fix initialization code race conditions in
5434 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5435 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5436 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5437 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5438 ssl2_get_cipher_by_char(),
5439 ssl3_get_cipher_by_char().
5440 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5442 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5443 the cached sessions are flushed, as the remove_cb() might use ex_data
5444 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5445 (see [openssl.org #212]).
5446 [Geoff Thorpe, Lutz Jaenicke]
5448 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5449 length, instead of the encoding length to d2i_ASN1_OBJECT.
5452 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5454 *) [In 0.9.6g-engine release:]
5455 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5456 [Lynn Gazis <lgazis@rainbow.com>]
5458 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5460 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5461 and get fix the header length calculation.
5462 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5463 Alon Kantor <alonk@checkpoint.com> (and others),
5466 *) Use proper error handling instead of 'assertions' in buffer
5467 overflow checks added in 0.9.6e. This prevents DoS (the
5468 assertions could call abort()).
5469 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5471 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5473 *) Add various sanity checks to asn1_get_length() to reject
5474 the ASN1 length bytes if they exceed sizeof(long), will appear
5475 negative or the content length exceeds the length of the
5477 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5479 *) Fix cipher selection routines: ciphers without encryption had no flags
5480 for the cipher strength set and where therefore not handled correctly
5481 by the selection routines (PR #130).
5484 *) Fix EVP_dsa_sha macro.
5488 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5489 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5490 that was added in OpenSSL 0.9.6d.
5492 As the countermeasure turned out to be incompatible with some
5493 broken SSL implementations, the new option is part of SSL_OP_ALL.
5494 SSL_OP_ALL is usually employed when compatibility with weird SSL
5495 implementations is desired (e.g. '-bugs' option to 's_client' and
5496 's_server'), so the new option is automatically set in many
5500 *) Changes in security patch:
5502 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5503 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5504 Air Force Materiel Command, USAF, under agreement number
5507 *) Add various sanity checks to asn1_get_length() to reject
5508 the ASN1 length bytes if they exceed sizeof(long), will appear
5509 negative or the content length exceeds the length of the
5510 supplied buffer. (CVE-2002-0659)
5511 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5513 *) Assertions for various potential buffer overflows, not known to
5515 [Ben Laurie (CHATS)]
5517 *) Various temporary buffers to hold ASCII versions of integers were
5518 too small for 64 bit platforms. (CVE-2002-0655)
5519 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5521 *) Remote buffer overflow in SSL3 protocol - an attacker could
5522 supply an oversized session ID to a client. (CVE-2002-0656)
5523 [Ben Laurie (CHATS)]
5525 *) Remote buffer overflow in SSL2 protocol - an attacker could
5526 supply an oversized client master key. (CVE-2002-0656)
5527 [Ben Laurie (CHATS)]
5529 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5531 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5532 encoded as NULL) with id-dsa-with-sha1.
5533 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5535 *) Check various X509_...() return values in apps/req.c.
5536 [Nils Larsch <nla@trustcenter.de>]
5538 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5539 an end-of-file condition would erronously be flagged, when the CRLF
5540 was just at the end of a processed block. The bug was discovered when
5541 processing data through a buffering memory BIO handing the data to a
5542 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5543 <ptsekov@syntrex.com> and Nedelcho Stanev.
5546 *) Implement a countermeasure against a vulnerability recently found
5547 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5548 before application data chunks to avoid the use of known IVs
5549 with data potentially chosen by the attacker.
5552 *) Fix length checks in ssl3_get_client_hello().
5555 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5556 to prevent ssl3_read_internal() from incorrectly assuming that
5557 ssl3_read_bytes() found application data while handshake
5558 processing was enabled when in fact s->s3->in_read_app_data was
5559 merely automatically cleared during the initial handshake.
5560 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5562 *) Fix object definitions for Private and Enterprise: they were not
5563 recognized in their shortname (=lowercase) representation. Extend
5564 obj_dat.pl to issue an error when using undefined keywords instead
5565 of silently ignoring the problem (Svenning Sorensen
5566 <sss@sss.dnsalias.net>).
5569 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5570 generators, i.e. generators other than 2 and 5. (Previously, the
5571 code did not properly initialise the 'add' and 'rem' values to
5572 BN_generate_prime().)
5574 In the new general case, we do not insist that 'generator' is
5575 actually a primitive root: This requirement is rather pointless;
5576 a generator of the order-q subgroup is just as good, if not
5580 *) Map new X509 verification errors to alerts. Discovered and submitted by
5581 Tom Wu <tom@arcot.com>.
5584 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5585 returning non-zero before the data has been completely received
5586 when using non-blocking I/O.
5587 [Bodo Moeller; problem pointed out by John Hughes]
5589 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5590 [Ben Laurie, Lutz Jaenicke]
5592 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5593 Yoram Zahavi <YoramZ@gilian.com>).
5596 *) Add information about CygWin 1.3 and on, and preserve proper
5597 configuration for the versions before that.
5598 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5600 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5601 check whether we deal with a copy of a session and do not delete from
5602 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5603 <izhar@checkpoint.com>.
5606 *) Do not store session data into the internal session cache, if it
5607 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5608 flag is set). Proposed by Aslam <aslam@funk.com>.
5611 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5615 *) [In 0.9.6d-engine release:]
5616 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5617 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5619 *) Add the configuration target linux-s390x.
5620 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5622 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5623 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5624 variable as an indication that a ClientHello message has been
5625 received. As the flag value will be lost between multiple
5626 invocations of ssl3_accept when using non-blocking I/O, the
5627 function may not be aware that a handshake has actually taken
5628 place, thus preventing a new session from being added to the
5631 To avoid this problem, we now set s->new_session to 2 instead of
5632 using a local variable.
5633 [Lutz Jaenicke, Bodo Moeller]
5635 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5636 if the SSL_R_LENGTH_MISMATCH error is detected.
5637 [Geoff Thorpe, Bodo Moeller]
5639 *) New 'shared_ldflag' column in Configure platform table.
5642 *) Fix EVP_CIPHER_mode macro.
5643 ["Dan S. Camper" <dan@bti.net>]
5645 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5646 type, we must throw them away by setting rr->length to 0.
5647 [D P Chang <dpc@qualys.com>]
5649 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5651 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5652 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5653 worked incorrectly for those cases where range = 10..._2 and
5654 3*range is two bits longer than range.)
5657 *) Only add signing time to PKCS7 structures if it is not already
5661 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5662 OBJ_ld_ce should be OBJ_id_ce.
5663 Also some ip-pda OIDs in crypto/objects/objects.txt were
5664 incorrect (cf. RFC 3039).
5665 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5667 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5668 returns early because it has nothing to do.
5669 [Andy Schneider <andy.schneider@bjss.co.uk>]
5671 *) [In 0.9.6c-engine release:]
5672 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5673 [Andy Schneider <andy.schneider@bjss.co.uk>]
5675 *) [In 0.9.6c-engine release:]
5676 Add support for Cryptographic Appliance's keyserver technology.
5677 (Use engine 'keyclient')
5678 [Cryptographic Appliances and Geoff Thorpe]
5680 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5681 is called via tools/c89.sh because arguments have to be
5682 rearranged (all '-L' options must appear before the first object
5684 [Richard Shapiro <rshapiro@abinitio.com>]
5686 *) [In 0.9.6c-engine release:]
5687 Add support for Broadcom crypto accelerator cards, backported
5689 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5691 *) [In 0.9.6c-engine release:]
5692 Add support for SureWare crypto accelerator cards from
5693 Baltimore Technologies. (Use engine 'sureware')
5694 [Baltimore Technologies and Mark Cox]
5696 *) [In 0.9.6c-engine release:]
5697 Add support for crypto accelerator cards from Accelerated
5698 Encryption Processing, www.aep.ie. (Use engine 'aep')
5699 [AEP Inc. and Mark Cox]
5701 *) Add a configuration entry for gcc on UnixWare.
5702 [Gary Benson <gbenson@redhat.com>]
5704 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5705 messages are stored in a single piece (fixed-length part and
5706 variable-length part combined) and fix various bugs found on the way.
5709 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5710 instead. BIO_gethostbyname() does not know what timeouts are
5711 appropriate, so entries would stay in cache even when they have
5713 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5715 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5716 faced with a pathologically small ClientHello fragment that does
5717 not contain client_version: Instead of aborting with an error,
5718 simply choose the highest available protocol version (i.e.,
5719 TLS 1.0 unless it is disabled). In practice, ClientHello
5720 messages are never sent like this, but this change gives us
5721 strictly correct behaviour at least for TLS.
5724 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5725 never resets s->method to s->ctx->method when called from within
5726 one of the SSL handshake functions.
5727 [Bodo Moeller; problem pointed out by Niko Baric]
5729 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5730 (sent using the client's version number) if client_version is
5731 smaller than the protocol version in use. Also change
5732 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5733 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5734 the client will at least see that alert.
5737 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5741 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5742 client receives HelloRequest while in a handshake.
5743 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5745 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5746 should end in 'break', not 'goto end' which circuments various
5747 cleanups done in state SSL_ST_OK. But session related stuff
5748 must be disabled for SSL_ST_OK in the case that we just sent a
5751 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5752 before just sending a HelloRequest.
5753 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5755 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5756 reveal whether illegal block cipher padding was found or a MAC
5757 verification error occured. (Neither SSLerr() codes nor alerts
5758 are directly visible to potential attackers, but the information
5759 may leak via logfiles.)
5761 Similar changes are not required for the SSL 2.0 implementation
5762 because the number of padding bytes is sent in clear for SSL 2.0,
5763 and the extra bytes are just ignored. However ssl/s2_pkt.c
5764 failed to verify that the purported number of padding bytes is in
5768 *) Add OpenUNIX-8 support including shared libraries
5769 (Boyd Lynn Gerber <gerberb@zenez.com>).
5772 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5773 'wristwatch attack' using huge encoding parameters (cf.
5774 James H. Manger's CRYPTO 2001 paper). Note that the
5775 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5776 encoding parameters and hence was not vulnerable.
5779 *) BN_sqr() bug fix.
5780 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5782 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5783 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5784 followed by modular reduction.
5785 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5787 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5788 equivalent based on BN_pseudo_rand() instead of BN_rand().
5791 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5792 This function was broken, as the check for a new client hello message
5793 to handle SGC did not allow these large messages.
5794 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5797 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5800 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5801 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5804 *) Rework the configuration and shared library support for Tru64 Unix.
5805 The configuration part makes use of modern compiler features and
5806 still retains old compiler behavior for those that run older versions
5807 of the OS. The shared library support part includes a variant that
5808 uses the RPATH feature, and is available through the special
5809 configuration target "alpha-cc-rpath", which will never be selected
5811 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5813 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5814 with the same message size as in ssl3_get_certificate_request().
5815 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5816 messages might inadvertently be reject as too long.
5817 [Petr Lampa <lampa@fee.vutbr.cz>]
5819 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5822 *) Modified SSL library such that the verify_callback that has been set
5823 specificly for an SSL object with SSL_set_verify() is actually being
5824 used. Before the change, a verify_callback set with this function was
5825 ignored and the verify_callback() set in the SSL_CTX at the time of
5826 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5827 to allow the necessary settings.
5830 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5831 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5832 done automatically (in contradiction to the requirements of the C
5833 standard). This made problems when used from OpenSSH.
5836 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5837 dh->length and always used
5839 BN_rand_range(priv_key, dh->p).
5841 BN_rand_range() is not necessary for Diffie-Hellman, and this
5842 specific range makes Diffie-Hellman unnecessarily inefficient if
5843 dh->length (recommended exponent length) is much smaller than the
5844 length of dh->p. We could use BN_rand_range() if the order of
5845 the subgroup was stored in the DH structure, but we only have
5850 BN_rand(priv_key, l, ...)
5852 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5858 RSA_eay_public_encrypt
5859 RSA_eay_private_decrypt
5860 RSA_eay_private_encrypt (signing)
5861 RSA_eay_public_decrypt (signature verification)
5863 (default implementations for RSA_public_encrypt,
5864 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5865 always reject numbers >= n.
5868 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5869 to synchronize access to 'locking_thread'. This is necessary on
5870 systems where access to 'locking_thread' (an 'unsigned long'
5871 variable) is not atomic.
5874 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5875 *before* setting the 'crypto_lock_rand' flag. The previous code had
5876 a race condition if 0 is a valid thread ID.
5877 [Travis Vitek <vitek@roguewave.com>]
5879 *) Add support for shared libraries under Irix.
5880 [Albert Chin-A-Young <china@thewrittenword.com>]
5882 *) Add configuration option to build on Linux on both big-endian and
5884 [Ralf Baechle <ralf@uni-koblenz.de>]
5886 *) Add the possibility to create shared libraries on HP-UX.
5889 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5891 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5892 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5893 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5894 PRNG state recovery was possible based on the output of
5895 one PRNG request appropriately sized to gain knowledge on
5896 'md' followed by enough consecutive 1-byte PRNG requests
5897 to traverse all of 'state'.
5899 1. When updating 'md_local' (the current thread's copy of 'md')
5900 during PRNG output generation, hash all of the previous
5901 'md_local' value, not just the half used for PRNG output.
5903 2. Make the number of bytes from 'state' included into the hash
5904 independent from the number of PRNG bytes requested.
5906 The first measure alone would be sufficient to avoid
5907 Markku-Juhani's attack. (Actually it had never occurred
5908 to me that the half of 'md_local' used for chaining was the
5909 half from which PRNG output bytes were taken -- I had always
5910 assumed that the secret half would be used.) The second
5911 measure makes sure that additional data from 'state' is never
5912 mixed into 'md_local' in small portions; this heuristically
5913 further strengthens the PRNG.
5916 *) Fix crypto/bn/asm/mips3.s.
5919 *) When only the key is given to "enc", the IV is undefined. Print out
5920 an error message in this case.
5923 *) Handle special case when X509_NAME is empty in X509 printing routines.
5926 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5927 positive and less than q.
5930 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5931 used: it isn't thread safe and the add_lock_callback should handle
5933 [Paul Rose <Paul.Rose@bridge.com>]
5935 *) Verify that incoming data obeys the block size in
5936 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5940 [Ulf Möller, Bodo Möller]
5942 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5943 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5944 when fixing the server behaviour for backwards-compatible 'client
5945 hello' messages. (Note that the attack is impractical against
5946 SSL 3.0 and TLS 1.0 anyway because length and version checking
5947 means that the probability of guessing a valid ciphertext is
5948 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5951 Before 0.9.5, the countermeasure (hide the error by generating a
5952 random 'decryption result') did not work properly because
5953 ERR_clear_error() was missing, meaning that SSL_get_error() would
5954 detect the supposedly ignored error.
5956 Both problems are now fixed.
5959 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5960 (previously it was 1024).
5963 *) Fix for compatibility mode trust settings: ignore trust settings
5964 unless some valid trust or reject settings are present.
5967 *) Fix for blowfish EVP: its a variable length cipher.
5970 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5971 parameters in DSA public key structures and return an error in the
5972 DSA routines if parameters are absent.
5975 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5976 in the current directory if neither $RANDFILE nor $HOME was set.
5977 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5978 caused some confusion to Windows users who haven't defined $HOME.
5979 Thus RAND_file_name() is changed again: e_os.h can define a
5980 DEFAULT_HOME, which will be used if $HOME is not set.
5981 For Windows, we use "C:"; on other platforms, we still require
5982 environment variables.
5984 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5985 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5986 having multiple threads call RAND_poll() concurrently.
5989 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5990 combination of a flag and a thread ID variable.
5991 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5992 flag), *other* threads can enter ssleay_add_bytes without obeying
5993 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5994 that they do not hold after the first thread unsets add_do_not_lock).
5997 *) Change bctest again: '-x' expressions are not available in all
6001 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6003 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6004 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6006 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6007 the default extension for executables, if any. Also, make the perl
6008 scripts that use symlink() to test if it really exists and use "cp"
6009 if it doesn't. All this made OpenSSL compilable and installable in
6013 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6014 If SEQUENCE is length is indefinite just set c->slen to the total
6015 amount of data available.
6016 [Steve Henson, reported by shige@FreeBSD.org]
6017 [This change does not apply to 0.9.7.]
6019 *) Change bctest to avoid here-documents inside command substitution
6020 (workaround for FreeBSD /bin/sh bug).
6021 For compatibility with Ultrix, avoid shell functions (introduced
6022 in the bctest version that searches along $PATH).
6025 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6026 with des_encrypt() defined on some operating systems, like Solaris
6030 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6031 On the Importance of Eliminating Errors in Cryptographic
6032 Computations, J. Cryptology 14 (2001) 2, 101-119,
6033 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6036 *) MIPS assembler BIGNUM division bug fix.
6039 *) Disabled incorrect Alpha assembler code.
6042 *) Fix PKCS#7 decode routines so they correctly update the length
6043 after reading an EOC for the EXPLICIT tag.
6045 [This change does not apply to 0.9.7.]
6047 *) Fix bug in PKCS#12 key generation routines. This was triggered
6048 if a 3DES key was generated with a 0 initial byte. Include
6049 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6050 (but broken) behaviour.
6053 *) Enhance bctest to search for a working bc along $PATH and print
6055 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6057 *) Fix memory leaks in err.c: free err_data string if necessary;
6058 don't write to the wrong index in ERR_set_error_data.
6061 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6065 *) Replace rdtsc with _emit statements for VC++ version 5.
6066 [Jeremy Cooper <jeremy@baymoo.org>]
6068 *) Make it possible to reuse SSLv2 sessions.
6071 *) In copy_email() check for >= 0 as a return value for
6072 X509_NAME_get_index_by_NID() since 0 is a valid index.
6073 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6075 *) Avoid coredump with unsupported or invalid public keys by checking if
6076 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6077 PKCS7_verify() fails with non detached data.
6080 *) Don't use getenv in library functions when run as setuid/setgid.
6081 New function OPENSSL_issetugid().
6084 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6085 due to incorrect handling of multi-threading:
6087 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6089 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6091 3. Count how many times MemCheck_off() has been called so that
6092 nested use can be treated correctly. This also avoids
6093 inband-signalling in the previous code (which relied on the
6094 assumption that thread ID 0 is impossible).
6097 *) Add "-rand" option also to s_client and s_server.
6100 *) Fix CPU detection on Irix 6.x.
6101 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6102 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6104 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6107 [This change does not apply to 0.9.7.]
6109 *) Use the cached encoding of an X509_NAME structure rather than
6110 copying it. This is apparently the reason for the libsafe "errors"
6111 but the code is actually correct.
6114 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6115 Bleichenbacher's DSA attack.
6116 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6117 to be set and top=0 forces the highest bit to be set; top=-1 is new
6118 and leaves the highest bit random.
6119 [Ulf Moeller, Bodo Moeller]
6121 *) In the NCONF_...-based implementations for CONF_... queries
6122 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6123 a temporary CONF structure with the data component set to NULL
6124 (which gives segmentation faults in lh_retrieve).
6125 Instead, use NULL for the CONF pointer in CONF_get_string and
6126 CONF_get_number (which may use environment variables) and directly
6127 return NULL from CONF_get_section.
6130 *) Fix potential buffer overrun for EBCDIC.
6133 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6134 keyUsage if basicConstraints absent for a CA.
6137 *) Make SMIME_write_PKCS7() write mail header values with a format that
6138 is more generally accepted (no spaces before the semicolon), since
6139 some programs can't parse those values properly otherwise. Also make
6140 sure BIO's that break lines after each write do not create invalid
6144 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6145 macros previously used would not encode an empty SEQUENCE OF
6146 and break the signature.
6148 [This change does not apply to 0.9.7.]
6150 *) Zero the premaster secret after deriving the master secret in
6154 *) Add some EVP_add_digest_alias registrations (as found in
6155 OpenSSL_add_all_digests()) to SSL_library_init()
6156 aka OpenSSL_add_ssl_algorithms(). This provides improved
6157 compatibility with peers using X.509 certificates
6158 with unconventional AlgorithmIdentifier OIDs.
6161 *) Fix for Irix with NO_ASM.
6162 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6164 *) ./config script fixes.
6165 [Ulf Moeller, Richard Levitte]
6167 *) Fix 'openssl passwd -1'.
6170 *) Change PKCS12_key_gen_asc() so it can cope with non null
6171 terminated strings whose length is passed in the passlen
6172 parameter, for example from PEM callbacks. This was done
6173 by adding an extra length parameter to asc2uni().
6174 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6176 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6177 call failed, free the DSA structure.
6180 *) Fix to uni2asc() to cope with zero length Unicode strings.
6181 These are present in some PKCS#12 files.
6184 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6185 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6186 when writing a 32767 byte record.
6187 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6189 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6190 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6192 (RSA objects have a reference count access to which is protected
6193 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6194 so they are meant to be shared between threads.)
6195 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6196 "Reddie, Steven" <Steven.Reddie@ca.com>]
6198 *) Fix a deadlock in CRYPTO_mem_leaks().
6201 *) Use better test patterns in bntest.
6204 *) rand_win.c fix for Borland C.
6207 *) BN_rshift bugfix for n == 0.
6210 *) Add a 'bctest' script that checks for some known 'bc' bugs
6211 so that 'make test' does not abort just because 'bc' is broken.
6214 *) Store verify_result within SSL_SESSION also for client side to
6215 avoid potential security hole. (Re-used sessions on the client side
6216 always resulted in verify_result==X509_V_OK, not using the original
6217 result of the server certificate verification.)
6220 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6221 SSL3_RT_APPLICATION_DATA, return 0.
6222 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6226 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6227 releases, have been re-implemented by renaming the previous
6228 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6229 and ssl3_read_internal, respectively, and adding 'peek' parameters
6230 to them. The new ssl[23]_{read,peek} functions are calls to
6231 ssl[23]_read_internal with the 'peek' flag set appropriately.
6232 A 'peek' parameter has also been added to ssl3_read_bytes, which
6233 does the actual work for ssl3_read_internal.
6236 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6237 the method-specific "init()" handler. Also clean up ex_data after
6238 calling the method-specific "finish()" handler. Previously, this was
6239 happening the other way round.
6242 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6243 The previous value, 12, was not always sufficient for BN_mod_exp().
6246 *) Make sure that shared libraries get the internal name engine with
6247 the full version number and not just 0. This should mark the
6248 shared libraries as not backward compatible. Of course, this should
6249 be changed again when we can guarantee backward binary compatibility.
6252 *) Fix typo in get_cert_by_subject() in by_dir.c
6253 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6255 *) Rework the system to generate shared libraries:
6257 - Make note of the expected extension for the shared libraries and
6258 if there is a need for symbolic links from for example libcrypto.so.0
6259 to libcrypto.so.0.9.7. There is extended info in Configure for
6262 - Make as few rebuilds of the shared libraries as possible.
6264 - Still avoid linking the OpenSSL programs with the shared libraries.
6266 - When installing, install the shared libraries separately from the
6270 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6272 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6273 and not in SSL_clear because the latter is also used by the
6274 accept/connect functions; previously, the settings made by
6275 SSL_set_read_ahead would be lost during the handshake.
6276 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6278 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6279 Previously, it would create entries for disableed algorithms no
6283 *) Added several new manual pages for SSL_* function.
6286 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6288 *) In ssl23_get_client_hello, generate an error message when faced
6289 with an initial SSL 3.0/TLS record that is too small to contain the
6290 first two bytes of the ClientHello message, i.e. client_version.
6291 (Note that this is a pathologic case that probably has never happened
6292 in real life.) The previous approach was to use the version number
6293 from the record header as a substitute; but our protocol choice
6294 should not depend on that one because it is not authenticated
6295 by the Finished messages.
6298 *) More robust randomness gathering functions for Windows.
6299 [Jeffrey Altman <jaltman@columbia.edu>]
6301 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6302 not set then we don't setup the error code for issuer check errors
6303 to avoid possibly overwriting other errors which the callback does
6304 handle. If an application does set the flag then we assume it knows
6305 what it is doing and can handle the new informational codes
6309 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6310 a general "ANY" type, as such it should be able to decode anything
6311 including tagged types. However it didn't check the class so it would
6312 wrongly interpret tagged types in the same way as their universal
6313 counterpart and unknown types were just rejected. Changed so that the
6314 tagged and unknown types are handled in the same way as a SEQUENCE:
6315 that is the encoding is stored intact. There is also a new type
6316 "V_ASN1_OTHER" which is used when the class is not universal, in this
6317 case we have no idea what the actual type is so we just lump them all
6321 *) On VMS, stdout may very well lead to a file that is written to
6322 in a record-oriented fashion. That means that every write() will
6323 write a separate record, which will be read separately by the
6324 programs trying to read from it. This can be very confusing.
6326 The solution is to put a BIO filter in the way that will buffer
6327 text until a linefeed is reached, and then write everything a
6328 line at a time, so every record written will be an actual line,
6329 not chunks of lines and not (usually doesn't happen, but I've
6330 seen it once) several lines in one record. BIO_f_linebuffer() is
6333 Currently, it's a VMS-only method, because that's where it has
6334 been tested well enough.
6337 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6338 it can return incorrect results.
6339 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6340 but it was in 0.9.6-beta[12].)
6343 *) Disable the check for content being present when verifying detached
6344 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6345 include zero length content when signing messages.
6348 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6349 BIO_ctrl (for BIO pairs).
6352 *) Add DSO method for VMS.
6355 *) Bug fix: Montgomery multiplication could produce results with the
6359 *) Add RPM specification openssl.spec and modify it to build three
6360 packages. The default package contains applications, application
6361 documentation and run-time libraries. The devel package contains
6362 include files, static libraries and function documentation. The
6363 doc package contains the contents of the doc directory. The original
6364 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6367 *) Add a large number of documentation files for many SSL routines.
6368 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6370 *) Add a configuration entry for Sony News 4.
6371 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6373 *) Don't set the two most significant bits to one when generating a
6374 random number < q in the DSA library.
6377 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6378 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6379 the underlying transport is blocking) if a handshake took place.
6380 (The default behaviour is needed by applications such as s_client
6381 and s_server that use select() to determine when to use SSL_read;
6382 but for applications that know in advance when to expect data, it
6383 just makes things more complicated.)
6386 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6390 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6391 work better on such systems.
6392 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6394 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6395 Update PKCS12_parse() so it copies the friendlyName and the
6396 keyid to the certificates aux info.
6399 *) Fix bug in PKCS7_verify() which caused an infinite loop
6400 if there was more than one signature.
6401 [Sven Uszpelkat <su@celocom.de>]
6403 *) Major change in util/mkdef.pl to include extra information
6404 about each symbol, as well as presentig variables as well
6405 as functions. This change means that there's n more need
6406 to rebuild the .num files when some algorithms are excluded.
6409 *) Allow the verify time to be set by an application,
6410 rather than always using the current time.
6413 *) Phase 2 verify code reorganisation. The certificate
6414 verify code now looks up an issuer certificate by a
6415 number of criteria: subject name, authority key id
6416 and key usage. It also verifies self signed certificates
6417 by the same criteria. The main comparison function is
6418 X509_check_issued() which performs these checks.
6420 Lot of changes were necessary in order to support this
6421 without completely rewriting the lookup code.
6423 Authority and subject key identifier are now cached.
6425 The LHASH 'certs' is X509_STORE has now been replaced
6426 by a STACK_OF(X509_OBJECT). This is mainly because an
6427 LHASH can't store or retrieve multiple objects with
6428 the same hash value.
6430 As a result various functions (which were all internal
6431 use only) have changed to handle the new X509_STORE
6432 structure. This will break anything that messed round
6433 with X509_STORE internally.
6435 The functions X509_STORE_add_cert() now checks for an
6436 exact match, rather than just subject name.
6438 The X509_STORE API doesn't directly support the retrieval
6439 of multiple certificates matching a given criteria, however
6440 this can be worked round by performing a lookup first
6441 (which will fill the cache with candidate certificates)
6442 and then examining the cache for matches. This is probably
6443 the best we can do without throwing out X509_LOOKUP
6444 entirely (maybe later...).
6446 The X509_VERIFY_CTX structure has been enhanced considerably.
6448 All certificate lookup operations now go via a get_issuer()
6449 callback. Although this currently uses an X509_STORE it
6450 can be replaced by custom lookups. This is a simple way
6451 to bypass the X509_STORE hackery necessary to make this
6452 work and makes it possible to use more efficient techniques
6453 in future. A very simple version which uses a simple
6454 STACK for its trusted certificate store is also provided
6455 using X509_STORE_CTX_trusted_stack().
6457 The verify_cb() and verify() callbacks now have equivalents
6458 in the X509_STORE_CTX structure.
6460 X509_STORE_CTX also has a 'flags' field which can be used
6461 to customise the verify behaviour.
6464 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6465 excludes S/MIME capabilities.
6468 *) When a certificate request is read in keep a copy of the
6469 original encoding of the signed data and use it when outputing
6470 again. Signatures then use the original encoding rather than
6471 a decoded, encoded version which may cause problems if the
6472 request is improperly encoded.
6475 *) For consistency with other BIO_puts implementations, call
6476 buffer_write(b, ...) directly in buffer_puts instead of calling
6479 In BIO_puts, increment b->num_write as in BIO_write.
6480 [Peter.Sylvester@EdelWeb.fr]
6482 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6483 BN_zero, we may not return a BIGNUM with an array consisting of
6487 *) Avoid calling abort() from within the library when problems are
6488 detected, except if preprocessor symbols have been defined
6489 (such as REF_CHECK, BN_DEBUG etc.).
6492 *) New openssl application 'rsautl'. This utility can be
6493 used for low level RSA operations. DER public key
6494 BIO/fp routines also added.
6497 *) New Configure entry and patches for compiling on QNX 4.
6498 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6500 *) A demo state-machine implementation was sponsored by
6501 Nuron (http://www.nuron.com/) and is now available in
6502 demos/state_machine.
6505 *) New options added to the 'dgst' utility for signature
6506 generation and verification.
6509 *) Unrecognized PKCS#7 content types are now handled via a
6510 catch all ASN1_TYPE structure. This allows unsupported
6511 types to be stored as a "blob" and an application can
6512 encode and decode it manually.
6515 *) Fix various signed/unsigned issues to make a_strex.c
6517 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6519 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6520 length if passed a buffer. ASN1_INTEGER_to_BN failed
6521 if passed a NULL BN and its argument was negative.
6522 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6524 *) Modification to PKCS#7 encoding routines to output definite
6525 length encoding. Since currently the whole structures are in
6526 memory there's not real point in using indefinite length
6527 constructed encoding. However if OpenSSL is compiled with
6528 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6531 *) Added BIO_vprintf() and BIO_vsnprintf().
6534 *) Added more prefixes to parse for in the the strings written
6535 through a logging bio, to cover all the levels that are available
6536 through syslog. The prefixes are now:
6538 PANIC, EMERG, EMR => LOG_EMERG
6539 ALERT, ALR => LOG_ALERT
6540 CRIT, CRI => LOG_CRIT
6541 ERROR, ERR => LOG_ERR
6542 WARNING, WARN, WAR => LOG_WARNING
6543 NOTICE, NOTE, NOT => LOG_NOTICE
6544 INFO, INF => LOG_INFO
6545 DEBUG, DBG => LOG_DEBUG
6547 and as before, if none of those prefixes are present at the
6548 beginning of the string, LOG_ERR is chosen.
6550 On Win32, the LOG_* levels are mapped according to this:
6552 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6553 LOG_WARNING => EVENTLOG_WARNING_TYPE
6554 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6558 *) Made it possible to reconfigure with just the configuration
6559 argument "reconf" or "reconfigure". The command line arguments
6560 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6561 and are retrieved from there when reconfiguring.
6565 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6567 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6570 *) The obj_dat.pl script was messing up the sorting of object
6571 names. The reason was that it compared the quoted version
6572 of strings as a result "OCSP" > "OCSP Signing" because
6573 " > SPACE. Changed script to store unquoted versions of
6574 names and add quotes on output. It was also omitting some
6575 names from the lookup table if they were given a default
6576 value (that is if SN is missing it is given the same
6577 value as LN and vice versa), these are now added on the
6578 grounds that if an object has a name we should be able to
6579 look it up. Finally added warning output when duplicate
6580 short or long names are found.
6583 *) Changes needed for Tandem NSK.
6584 [Scott Uroff <scott@xypro.com>]
6586 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6587 RSA_padding_check_SSLv23(), special padding was never detected
6588 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6589 version rollback attacks was not effective.
6591 In s23_clnt.c, don't use special rollback-attack detection padding
6592 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6593 client; similarly, in s23_srvr.c, don't do the rollback check if
6594 SSL 2.0 is the only protocol enabled in the server.
6597 *) Make it possible to get hexdumps of unprintable data with 'openssl
6598 asn1parse'. By implication, the functions ASN1_parse_dump() and
6599 BIO_dump_indent() are added.
6602 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6603 these print out strings and name structures based on various
6604 flags including RFC2253 support and proper handling of
6605 multibyte characters. Added options to the 'x509' utility
6606 to allow the various flags to be set.
6609 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6610 Also change the functions X509_cmp_current_time() and
6611 X509_gmtime_adj() work with an ASN1_TIME structure,
6612 this will enable certificates using GeneralizedTime in validity
6613 dates to be checked.
6616 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6617 negative public key encodings) on by default,
6618 NO_NEG_PUBKEY_BUG can be set to disable it.
6621 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6622 content octets. An i2c_ASN1_OBJECT is unnecessary because
6623 the encoding can be trivially obtained from the structure.
6626 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6627 not read locks (CRYPTO_r_[un]lock).
6630 *) A first attempt at creating official support for shared
6631 libraries through configuration. I've kept it so the
6632 default is static libraries only, and the OpenSSL programs
6633 are always statically linked for now, but there are
6634 preparations for dynamic linking in place.
6635 This has been tested on Linux and Tru64.
6638 *) Randomness polling function for Win9x, as described in:
6639 Peter Gutmann, Software Generation of Practically Strong
6643 *) Fix so PRNG is seeded in req if using an already existing
6647 *) New options to smime application. -inform and -outform
6648 allow alternative formats for the S/MIME message including
6649 PEM and DER. The -content option allows the content to be
6650 specified separately. This should allow things like Netscape
6651 form signing output easier to verify.
6654 *) Fix the ASN1 encoding of tags using the 'long form'.
6657 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6658 STRING types. These convert content octets to and from the
6659 underlying type. The actual tag and length octets are
6660 already assumed to have been read in and checked. These
6661 are needed because all other string types have virtually
6662 identical handling apart from the tag. By having versions
6663 of the ASN1 functions that just operate on content octets
6664 IMPLICIT tagging can be handled properly. It also allows
6665 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6666 and ASN1_INTEGER are identical apart from the tag.
6669 *) Change the handling of OID objects as follows:
6671 - New object identifiers are inserted in objects.txt, following
6672 the syntax given in objects.README.
6673 - objects.pl is used to process obj_mac.num and create a new
6675 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6678 This is currently kind of a hack, and the perl code in objects.pl
6679 isn't very elegant, but it works as I intended. The simplest way
6680 to check that it worked correctly is to look in obj_dat.h and
6681 check the array nid_objs and make sure the objects haven't moved
6682 around (this is important!). Additions are OK, as well as
6683 consistent name changes.
6686 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6689 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6690 The given file adds to whatever has already been seeded into the
6691 random pool through the RANDFILE configuration file option or
6692 environment variable, or the default random state file.
6695 *) mkstack.pl now sorts each macro group into lexical order.
6696 Previously the output order depended on the order the files
6697 appeared in the directory, resulting in needless rewriting
6701 *) Patches to make OpenSSL compile under Win32 again. Mostly
6702 work arounds for the VC++ problem that it treats func() as
6703 func(void). Also stripped out the parts of mkdef.pl that
6704 added extra typesafe functions: these no longer exist.
6707 *) Reorganisation of the stack code. The macros are now all
6708 collected in safestack.h . Each macro is defined in terms of
6709 a "stack macro" of the form SKM_<name>(type, a, b). The
6710 DEBUG_SAFESTACK is now handled in terms of function casts,
6711 this has the advantage of retaining type safety without the
6712 use of additional functions. If DEBUG_SAFESTACK is not defined
6713 then the non typesafe macros are used instead. Also modified the
6714 mkstack.pl script to handle the new form. Needs testing to see
6715 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6716 the default if no major problems. Similar behaviour for ASN1_SET_OF
6717 and PKCS12_STACK_OF.
6720 *) When some versions of IIS use the 'NET' form of private key the
6721 key derivation algorithm is different. Normally MD5(password) is
6722 used as a 128 bit RC4 key. In the modified case
6723 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6724 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6725 as the old Netscape_RSA functions except they have an additional
6726 'sgckey' parameter which uses the modified algorithm. Also added
6727 an -sgckey command line option to the rsa utility. Thanks to
6728 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6729 algorithm to openssl-dev.
6732 *) The evp_local.h macros were using 'c.##kname' which resulted in
6733 invalid expansion on some systems (SCO 5.0.5 for example).
6734 Corrected to 'c.kname'.
6735 [Phillip Porch <root@theporch.com>]
6737 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6738 a STACK of email addresses from a certificate or request, these look
6739 in the subject name and the subject alternative name extensions and
6740 omit any duplicate addresses.
6743 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6744 This makes DSA verification about 2 % faster.
6747 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6748 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6749 plus overhead for 1024 bit moduli).
6750 This makes exponentiations about 0.5 % faster for 1024 bit
6751 exponents (as measured by "openssl speed rsa2048").
6754 *) Rename memory handling macros to avoid conflicts with other
6756 Malloc => OPENSSL_malloc
6757 Malloc_locked => OPENSSL_malloc_locked
6758 Realloc => OPENSSL_realloc
6759 Free => OPENSSL_free
6762 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6763 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6766 *) CygWin32 support.
6767 [John Jarvie <jjarvie@newsguy.com>]
6769 *) The type-safe stack code has been rejigged. It is now only compiled
6770 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6771 by default all type-specific stack functions are "#define"d back to
6772 standard stack functions. This results in more streamlined output
6773 but retains the type-safety checking possibilities of the original
6777 *) The STACK code has been cleaned up, and certain type declarations
6778 that didn't make a lot of sense have been brought in line. This has
6779 also involved a cleanup of sorts in safestack.h to more correctly
6780 map type-safe stack functions onto their plain stack counterparts.
6781 This work has also resulted in a variety of "const"ifications of
6782 lots of the code, especially "_cmp" operations which should normally
6783 be prototyped with "const" parameters anyway.
6786 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6787 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6788 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6789 where all of 'md' is used each time the PRNG is used, but 'state'
6790 is used only indexed by a cyclic counter. As entropy may not be
6791 well distributed from the beginning, 'md' is important as a
6792 chaining variable. However, the output function chains only half
6793 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6794 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6795 in all of 'state' being rewritten, with the new values depending
6796 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6799 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6800 the handshake is continued after ssl_verify_cert_chain();
6801 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6802 can lead to 'unexplainable' connection aborts later.
6803 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6805 *) Major EVP API cipher revision.
6806 Add hooks for extra EVP features. This allows various cipher
6807 parameters to be set in the EVP interface. Support added for variable
6808 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6809 setting of RC2 and RC5 parameters.
6811 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6814 Remove lots of duplicated code from the EVP library. For example *every*
6815 cipher init() function handles the 'iv' in the same way according to the
6816 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6817 for CFB and OFB modes they zero ctx->num.
6819 New functionality allows removal of S/MIME code RC2 hack.
6821 Most of the routines have the same form and so can be declared in terms
6824 By shifting this to the top level EVP_CipherInit() it can be removed from
6825 all individual ciphers. If the cipher wants to handle IVs or keys
6826 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6829 Change lots of functions like EVP_EncryptUpdate() to now return a
6830 value: although software versions of the algorithms cannot fail
6831 any installed hardware versions can.
6834 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6835 this option is set, tolerate broken clients that send the negotiated
6836 protocol version number instead of the requested protocol version
6840 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6841 i.e. non-zero for export ciphersuites, zero otherwise.
6842 Previous versions had this flag inverted, inconsistent with
6843 rsa_tmp_cb (..._TMP_RSA_CB).
6844 [Bodo Moeller; problem reported by Amit Chopra]
6846 *) Add missing DSA library text string. Work around for some IIS
6847 key files with invalid SEQUENCE encoding.
6850 *) Add a document (doc/standards.txt) that list all kinds of standards
6851 and so on that are implemented in OpenSSL.
6854 *) Enhance c_rehash script. Old version would mishandle certificates
6855 with the same subject name hash and wouldn't handle CRLs at all.
6856 Added -fingerprint option to crl utility, to support new c_rehash
6860 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6863 *) Fix for SSL server purpose checking. Server checking was
6864 rejecting certificates which had extended key usage present
6865 but no ssl client purpose.
6866 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6868 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6869 is a little unclear about how a blank password is handled.
6870 Since the password in encoded as a BMPString with terminating
6871 double NULL a zero length password would end up as just the
6872 double NULL. However no password at all is different and is
6873 handled differently in the PKCS#12 key generation code. NS
6874 treats a blank password as zero length. MSIE treats it as no
6875 password on export: but it will try both on import. We now do
6876 the same: PKCS12_parse() tries zero length and no password if
6877 the password is set to "" or NULL (NULL is now a valid password:
6878 it wasn't before) as does the pkcs12 application.
6881 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6882 perror when PEM_read_bio_X509_REQ fails, the error message must
6883 be obtained from the error queue.
6886 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6887 it in ERR_remove_state if appropriate, and change ERR_get_state
6888 accordingly to avoid race conditions (this is necessary because
6889 thread_hash is no longer constant once set).
6892 *) Bugfix for linux-elf makefile.one.
6895 *) RSA_get_default_method() will now cause a default
6896 RSA_METHOD to be chosen if one doesn't exist already.
6897 Previously this was only set during a call to RSA_new()
6898 or RSA_new_method(NULL) meaning it was possible for
6899 RSA_get_default_method() to return NULL.
6902 *) Added native name translation to the existing DSO code
6903 that will convert (if the flag to do so is set) filenames
6904 that are sufficiently small and have no path information
6905 into a canonical native form. Eg. "blah" converted to
6906 "libblah.so" or "blah.dll" etc.
6909 *) New function ERR_error_string_n(e, buf, len) which is like
6910 ERR_error_string(e, buf), but writes at most 'len' bytes
6911 including the 0 terminator. For ERR_error_string_n, 'buf'
6913 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6915 *) CONF library reworked to become more general. A new CONF
6916 configuration file reader "class" is implemented as well as a
6917 new functions (NCONF_*, for "New CONF") to handle it. The now
6918 old CONF_* functions are still there, but are reimplemented to
6919 work in terms of the new functions. Also, a set of functions
6920 to handle the internal storage of the configuration data is
6921 provided to make it easier to write new configuration file
6922 reader "classes" (I can definitely see something reading a
6923 configuration file in XML format, for example), called _CONF_*,
6924 or "the configuration storage API"...
6926 The new configuration file reading functions are:
6928 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6929 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6931 NCONF_default, NCONF_WIN32
6933 NCONF_dump_fp, NCONF_dump_bio
6935 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6936 NCONF_new creates a new CONF object. This works in the same way
6937 as other interfaces in OpenSSL, like the BIO interface.
6938 NCONF_dump_* dump the internal storage of the configuration file,
6939 which is useful for debugging. All other functions take the same
6940 arguments as the old CONF_* functions wth the exception of the
6941 first that must be a `CONF *' instead of a `LHASH *'.
6943 To make it easer to use the new classes with the old CONF_* functions,
6944 the function CONF_set_default_method is provided.
6947 *) Add '-tls1' option to 'openssl ciphers', which was already
6948 mentioned in the documentation but had not been implemented.
6949 (This option is not yet really useful because even the additional
6950 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6953 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6954 OpenSSL-based applications) load shared libraries and bind to
6955 them in a portable way.
6956 [Geoff Thorpe, with contributions from Richard Levitte]
6958 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6960 *) Make sure _lrotl and _lrotr are only used with MSVC.
6962 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6963 (the default implementation of RAND_status).
6965 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6966 to '-clrext' (= clear extensions), as intended and documented.
6967 [Bodo Moeller; inconsistency pointed out by Michael Attili
6970 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6971 was larger than the MD block size.
6972 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6974 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6975 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6976 using the passed key: if the passed key was a private key the result
6977 of X509_print(), for example, would be to print out all the private key
6981 *) des_quad_cksum() byte order bug fix.
6982 [Ulf Möller, using the problem description in krb4-0.9.7, where
6983 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6985 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6987 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6989 *) For easily testing in shell scripts whether some command
6990 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6991 returns with exit code 0 iff no command of the given name is available.
6992 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6993 the output goes to stdout and nothing is printed to stderr.
6994 Additional arguments are always ignored.
6996 Since for each cipher there is a command of the same name,
6997 the 'no-cipher' compilation switches can be tested this way.
6999 ('openssl no-XXX' is not able to detect pseudo-commands such
7000 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7003 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7006 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7007 is set; it will be thrown away anyway because each handshake creates
7009 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7010 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7011 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7012 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7015 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7016 'Q' and 'R' lose their special meanings (quit/renegotiate).
7017 This is part of what -quiet does; unlike -quiet, -ign_eof
7018 does not suppress any output.
7021 *) Add compatibility options to the purpose and trust code. The
7022 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7023 accepts a certificate or CA, this was the previous behaviour,
7024 with all the associated security issues.
7026 X509_TRUST_COMPAT is the old trust behaviour: only and
7027 automatically trust self signed roots in certificate store. A
7028 new trust setting X509_TRUST_DEFAULT is used to specify that
7029 a purpose has no associated trust setting and it should instead
7030 use the value in the default purpose.
7033 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7034 and fix a memory leak.
7037 *) In util/mkerr.pl (which implements 'make errors'), preserve
7038 reason strings from the previous version of the .c file, as
7039 the default to have only downcase letters (and digits) in
7040 automatically generated reasons codes is not always appropriate.
7043 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7044 using strerror. Previously, ERR_reason_error_string() returned
7045 library names as reason strings for SYSerr; but SYSerr is a special
7046 case where small numbers are errno values, not library numbers.
7049 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7050 converts DSA parameters into DH parameters. (When creating parameters,
7051 DSA_generate_parameters is used.)
7054 *) Include 'length' (recommended exponent length) in C code generated
7055 by 'openssl dhparam -C'.
7058 *) The second argument to set_label in perlasm was already being used
7059 so couldn't be used as a "file scope" flag. Moved to third argument
7063 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7064 instead of RAND_bytes for encryption IVs and salts.
7067 *) Include RAND_status() into RAND_METHOD instead of implementing
7068 it only for md_rand.c Otherwise replacing the PRNG by calling
7069 RAND_set_rand_method would be impossible.
7072 *) Don't let DSA_generate_key() enter an infinite loop if the random
7073 number generation fails.
7076 *) New 'rand' application for creating pseudo-random output.
7079 *) Added configuration support for Linux/IA64
7080 [Rolf Haberrecker <rolf@suse.de>]
7082 *) Assembler module support for Mingw32.
7085 *) Shared library support for HPUX (in shlib/).
7086 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7088 *) Shared library support for Solaris gcc.
7089 [Lutz Behnke <behnke@trustcenter.de>]
7091 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7093 *) PKCS7_encrypt() was adding text MIME headers twice because they
7094 were added manually and by SMIME_crlf_copy().
7097 *) In bntest.c don't call BN_rand with zero bits argument.
7098 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7100 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7101 case was implemented. This caused BN_div_recp() to fail occasionally.
7104 *) Add an optional second argument to the set_label() in the perl
7105 assembly language builder. If this argument exists and is set
7106 to 1 it signals that the assembler should use a symbol whose
7107 scope is the entire file, not just the current function. This
7108 is needed with MASM which uses the format label:: for this scope.
7109 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7111 *) Change the ASN1 types so they are typedefs by default. Before
7112 almost all types were #define'd to ASN1_STRING which was causing
7113 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7117 *) Change names of new functions to the new get1/get0 naming
7118 convention: After 'get1', the caller owns a reference count
7119 and has to call ..._free; 'get0' returns a pointer to some
7120 data structure without incrementing reference counters.
7121 (Some of the existing 'get' functions increment a reference
7122 counter, some don't.)
7123 Similarly, 'set1' and 'add1' functions increase reference
7124 counters or duplicate objects.
7127 *) Allow for the possibility of temp RSA key generation failure:
7128 the code used to assume it always worked and crashed on failure.
7131 *) Fix potential buffer overrun problem in BIO_printf().
7132 [Ulf Möller, using public domain code by Patrick Powell; problem
7133 pointed out by David Sacerdote <das33@cornell.edu>]
7135 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7136 RAND_egd() and RAND_status(). In the command line application,
7137 the EGD socket can be specified like a seed file using RANDFILE
7141 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7142 Some CAs (e.g. Verisign) distribute certificates in this form.
7145 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7146 list to exclude them. This means that no special compilation option
7147 is needed to use anonymous DH: it just needs to be included in the
7151 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7152 EVP_MD_type. The old functionality is available in a new macro called
7153 EVP_MD_md(). Change code that uses it and update docs.
7156 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7157 where the 'void *' argument is replaced by a function pointer argument.
7158 Previously 'void *' was abused to point to functions, which works on
7159 many platforms, but is not correct. As these functions are usually
7160 called by macros defined in OpenSSL header files, most source code
7161 should work without changes.
7164 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7165 sections with information on -D... compiler switches used for
7166 compiling the library so that applications can see them. To enable
7167 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7168 must be defined. E.g.,
7169 #define OPENSSL_ALGORITHM_DEFINES
7170 #include <openssl/opensslconf.h>
7171 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7172 [Richard Levitte, Ulf and Bodo Möller]
7174 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7178 *) Change the 'other' type in certificate aux info to a STACK_OF
7179 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7180 the required ASN1 format: arbitrary types determined by an OID.
7183 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7184 argument to 'req'. This is not because the function is newer or
7185 better than others it just uses the work 'NEW' in the certificate
7186 request header lines. Some software needs this.
7189 *) Reorganise password command line arguments: now passwords can be
7190 obtained from various sources. Delete the PEM_cb function and make
7191 it the default behaviour: i.e. if the callback is NULL and the
7192 usrdata argument is not NULL interpret it as a null terminated pass
7193 phrase. If usrdata and the callback are NULL then the pass phrase
7194 is prompted for as usual.
7197 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7198 the support is automatically enabled. The resulting binaries will
7199 autodetect the card and use it if present.
7200 [Ben Laurie and Compaq Inc.]
7202 *) Work around for Netscape hang bug. This sends certificate request
7203 and server done in one record. Since this is perfectly legal in the
7204 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7205 the bugs/SSLv3 entry for more info.
7208 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7211 *) Add -rand argument to smime and pkcs12 applications and read/write
7215 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7218 *) Add command line password options to the remaining applications.
7221 *) Bug fix for BN_div_recp() for numerators with an even number of
7225 *) More tests in bntest.c, and changed test_bn output.
7228 *) ./config recognizes MacOS X now.
7231 *) Bug fix for BN_div() when the first words of num and divsor are
7232 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7235 *) Add support for various broken PKCS#8 formats, and command line
7236 options to produce them.
7239 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7240 get temporary BIGNUMs from a BN_CTX.
7243 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7247 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7248 include a #define from the old name to the new. The original intent
7249 was that statically linked binaries could for example just call
7250 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7251 link with digests. This never worked becayse SSLeay_add_all_digests()
7252 and SSLeay_add_all_ciphers() were in the same source file so calling
7253 one would link with the other. They are now in separate source files.
7256 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7259 *) Use a less unusual form of the Miller-Rabin primality test (it used
7260 a binary algorithm for exponentiation integrated into the Miller-Rabin
7261 loop, our standard modexp algorithms are faster).
7264 *) Support for the EBCDIC character set completed.
7265 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7267 *) Source code cleanups: use const where appropriate, eliminate casts,
7268 use void * instead of char * in lhash.
7271 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7272 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7273 this the server could overwrite ephemeral keys that the client
7277 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7278 using 50 iterations of the Rabin-Miller test.
7280 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7281 iterations of the Rabin-Miller test as required by the appendix
7282 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7283 As BN_is_prime_fasttest includes trial division, DSA parameter
7284 generation becomes much faster.
7286 This implies a change for the callback functions in DSA_is_prime
7287 and DSA_generate_parameters: The callback function is called once
7288 for each positive witness in the Rabin-Miller test, not just
7289 occasionally in the inner loop; and the parameters to the
7290 callback function now provide an iteration count for the outer
7291 loop rather than for the current invocation of the inner loop.
7292 DSA_generate_parameters additionally can call the callback
7293 function with an 'iteration count' of -1, meaning that a
7294 candidate has passed the trial division test (when q is generated
7295 from an application-provided seed, trial division is skipped).
7298 *) New function BN_is_prime_fasttest that optionally does trial
7299 division before starting the Rabin-Miller test and has
7300 an additional BN_CTX * argument (whereas BN_is_prime always
7301 has to allocate at least one BN_CTX).
7302 'callback(1, -1, cb_arg)' is called when a number has passed the
7303 trial division stage.
7306 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7310 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7313 *) New function BN_pseudo_rand().
7316 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7317 bignum version of BN_from_montgomery() with the working code from
7318 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7322 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7323 made it impossible to use the same SSL_SESSION data structure in
7324 SSL2 clients in multiple threads.
7327 *) The return value of RAND_load_file() no longer counts bytes obtained
7328 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7329 to seed the PRNG (previously an explicit byte count was required).
7330 [Ulf Möller, Bodo Möller]
7332 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7333 used (char *) instead of (void *) and had casts all over the place.
7336 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7339 *) Retain source code compatibility for BN_prime_checks macro:
7340 BN_is_prime(..., BN_prime_checks, ...) now uses
7341 BN_prime_checks_for_size to determine the appropriate number of
7342 Rabin-Miller iterations.
7345 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7346 DH_CHECK_P_NOT_SAFE_PRIME.
7347 (Check if this is true? OpenPGP calls them "strong".)
7350 *) Merge the functionality of "dh" and "gendh" programs into a new program
7351 "dhparam". The old programs are retained for now but will handle DH keys
7352 (instead of parameters) in future.
7355 *) Make the ciphers, s_server and s_client programs check the return values
7356 when a new cipher list is set.
7359 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7360 ciphers. Before when the 56bit ciphers were enabled the sorting was
7363 The syntax for the cipher sorting has been extended to support sorting by
7364 cipher-strength (using the strength_bits hard coded in the tables).
7365 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7367 Fix a bug in the cipher-command parser: when supplying a cipher command
7368 string with an "undefined" symbol (neither command nor alphanumeric
7369 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7370 an error is flagged.
7372 Due to the strength-sorting extension, the code of the
7373 ssl_create_cipher_list() function was completely rearranged. I hope that
7374 the readability was also increased :-)
7375 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7377 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7378 for the first serial number and places 2 in the serial number file. This
7379 avoids problems when the root CA is created with serial number zero and
7380 the first user certificate has the same issuer name and serial number
7384 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7385 the new code. Add documentation for this stuff.
7388 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7389 X509_*() to X509at_*() on the grounds that they don't handle X509
7390 structures and behave in an analagous way to the X509v3 functions:
7391 they shouldn't be called directly but wrapper functions should be used
7394 So we also now have some wrapper functions that call the X509at functions
7395 when passed certificate requests. (TO DO: similar things can be done with
7396 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7397 things. Some of these need some d2i or i2d and print functionality
7398 because they handle more complex structures.)
7401 *) Add missing #ifndefs that caused missing symbols when building libssl
7402 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7403 NO_RSA in ssl/s2*.c.
7404 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7406 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7407 has a return value which indicates the quality of the random data
7408 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7409 error queue. New function RAND_pseudo_bytes() generates output that is
7410 guaranteed to be unique but not unpredictable. RAND_add is like
7411 RAND_seed, but takes an extra argument for an entropy estimate
7412 (RAND_seed always assumes full entropy).
7415 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7416 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7417 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7418 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7419 false-positive rate of at most 2^-80 for random input.
7422 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7425 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7426 in the 0.9.5 release), this returns the chain
7427 from an X509_CTX structure with a dup of the stack and all
7428 the X509 reference counts upped: so the stack will exist
7429 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7432 Also make SSL_SESSION_print() print out the verify return
7436 *) Add manpage for the pkcs12 command. Also change the default
7437 behaviour so MAC iteration counts are used unless the new
7438 -nomaciter option is used. This improves file security and
7439 only older versions of MSIE (4.0 for example) need it.
7442 *) Honor the no-xxx Configure options when creating .DEF files.
7445 *) Add PKCS#10 attributes to field table: challengePassword,
7446 unstructuredName and unstructuredAddress. These are taken from
7447 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7448 international characters are used.
7450 More changes to X509_ATTRIBUTE code: allow the setting of types
7451 based on strings. Remove the 'loc' parameter when adding
7452 attributes because these will be a SET OF encoding which is sorted
7456 *) Initial changes to the 'req' utility to allow request generation
7457 automation. This will allow an application to just generate a template
7458 file containing all the field values and have req construct the
7461 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7462 used all over the place including certificate requests and PKCS#7
7463 structures. They are currently handled manually where necessary with
7464 some primitive wrappers for PKCS#7. The new functions behave in a
7465 manner analogous to the X509 extension functions: they allow
7466 attributes to be looked up by NID and added.
7468 Later something similar to the X509V3 code would be desirable to
7469 automatically handle the encoding, decoding and printing of the
7470 more complex types. The string types like challengePassword can
7471 be handled by the string table functions.
7473 Also modified the multi byte string table handling. Now there is
7474 a 'global mask' which masks out certain types. The table itself
7475 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7476 is useful when for example there is only one permissible type
7477 (as in countryName) and using the mask might result in no valid
7481 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7482 SSL_get_peer_finished to allow applications to obtain the latest
7483 Finished messages sent to the peer or expected from the peer,
7484 respectively. (SSL_get_peer_finished is usually the Finished message
7485 actually received from the peer, otherwise the protocol will be aborted.)
7487 As the Finished message are message digests of the complete handshake
7488 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7489 be used for external authentication procedures when the authentication
7490 provided by SSL/TLS is not desired or is not enough.
7493 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7494 the host supports BWX extension and if Compaq C is present on the
7495 $PATH. Just exploiting of the BWX extension results in 20-30%
7496 performance kick for some algorithms, e.g. DES and RC4 to mention
7497 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7501 *) Add support for MS "fast SGC". This is arguably a violation of the
7502 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7503 weak crypto and after checking the certificate is SGC a second one
7504 with strong crypto. MS SGC stops the first handshake after receiving
7505 the server certificate message and sends a second client hello. Since
7506 a server will typically do all the time consuming operations before
7507 expecting any further messages from the client (server key exchange
7508 is the most expensive) there is little difference between the two.
7510 To get OpenSSL to support MS SGC we have to permit a second client
7511 hello message after we have sent server done. In addition we have to
7512 reset the MAC if we do get this second client hello.
7515 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7516 if a DER encoded private key is RSA or DSA traditional format. Changed
7517 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7518 format DER encoded private key. Newer code should use PKCS#8 format which
7519 has the key type encoded in the ASN1 structure. Added DER private key
7520 support to pkcs8 application.
7523 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7524 ciphersuites has been selected (as required by the SSL 3/TLS 1
7525 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7526 is set, we interpret this as a request to violate the specification
7527 (the worst that can happen is a handshake failure, and 'correct'
7528 behaviour would result in a handshake failure anyway).
7531 *) In SSL_CTX_add_session, take into account that there might be multiple
7532 SSL_SESSION structures with the same session ID (e.g. when two threads
7533 concurrently obtain them from an external cache).
7534 The internal cache can handle only one SSL_SESSION with a given ID,
7535 so if there's a conflict, we now throw out the old one to achieve
7539 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7540 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7541 some routines that use cipher OIDs: some ciphers do not have OIDs
7542 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7546 *) Simplify the trust setting structure and code. Now we just have
7547 two sequences of OIDs for trusted and rejected settings. These will
7548 typically have values the same as the extended key usage extension
7549 and any application specific purposes.
7551 The trust checking code now has a default behaviour: it will just
7552 check for an object with the same NID as the passed id. Functions can
7553 be provided to override either the default behaviour or the behaviour
7554 for a given id. SSL client, server and email already have functions
7555 in place for compatibility: they check the NID and also return "trusted"
7556 if the certificate is self signed.
7559 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7560 traditional format into an EVP_PKEY structure.
7563 *) Add a password callback function PEM_cb() which either prompts for
7564 a password if usr_data is NULL or otherwise assumes it is a null
7565 terminated password. Allow passwords to be passed on command line
7566 environment or config files in a few more utilities.
7569 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7570 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7571 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7572 Update documentation.
7575 *) Support for ASN1 "NULL" type. This could be handled before by using
7576 ASN1_TYPE but there wasn't any function that would try to read a NULL
7577 and produce an error if it couldn't. For compatibility we also have
7578 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7579 don't allocate anything because they don't need to.
7582 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7584 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7586 *) Rebuild of the memory allocation routines used by OpenSSL code and
7587 possibly others as well. The purpose is to make an interface that
7588 provide hooks so anyone can build a separate set of allocation and
7589 deallocation routines to be used by OpenSSL, for example memory
7590 pool implementations, or something else, which was previously hard
7591 since Malloc(), Realloc() and Free() were defined as macros having
7592 the values malloc, realloc and free, respectively (except for Win32
7593 compilations). The same is provided for memory debugging code.
7594 OpenSSL already comes with functionality to find memory leaks, but
7595 this gives people a chance to debug other memory problems.
7597 With these changes, a new set of functions and macros have appeared:
7599 CRYPTO_set_mem_debug_functions() [F]
7600 CRYPTO_get_mem_debug_functions() [F]
7601 CRYPTO_dbg_set_options() [F]
7602 CRYPTO_dbg_get_options() [F]
7603 CRYPTO_malloc_debug_init() [M]
7605 The memory debug functions are NULL by default, unless the library
7606 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7607 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7608 gives the standard debugging functions that come with OpenSSL) or
7609 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7610 provided by the library user) must be used. When the standard
7611 debugging functions are used, CRYPTO_dbg_set_options can be used to
7612 request additional information:
7613 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7614 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7616 Also, things like CRYPTO_set_mem_functions will always give the
7617 expected result (the new set of functions is used for allocation
7618 and deallocation) at all times, regardless of platform and compiler
7621 To finish it up, some functions that were never use in any other
7622 way than through macros have a new API and new semantic:
7625 CRYPTO_dbg_realloc()
7628 All macros of value have retained their old syntax.
7629 [Richard Levitte and Bodo Moeller]
7631 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7632 ordering of SMIMECapabilities wasn't in "strength order" and there
7633 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7637 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7638 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7639 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7641 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7642 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7643 functionality to handle multipart/signed properly) and a utility
7644 called 'smime' to call all this stuff. This is based on code I
7645 originally wrote for Celo who have kindly allowed it to be
7646 included in OpenSSL.
7649 *) Add variants des_set_key_checked and des_set_key_unchecked of
7650 des_set_key (aka des_key_sched). Global variable des_check_key
7651 decides which of these is called by des_set_key; this way
7652 des_check_key behaves as it always did, but applications and
7653 the library itself, which was buggy for des_check_key == 1,
7654 have a cleaner way to pick the version they need.
7657 *) New function PKCS12_newpass() which changes the password of a
7661 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7662 dynamic mix. In both cases the ids can be used as an index into the
7663 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7664 functions so they accept a list of the field values and the
7665 application doesn't need to directly manipulate the X509_TRUST
7669 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7673 *) Modify the way the V3 extension code looks up extensions. This now
7674 works in a similar way to the object code: we have some "standard"
7675 extensions in a static table which is searched with OBJ_bsearch()
7676 and the application can add dynamic ones if needed. The file
7677 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7678 updated whenever a new extension is added to the core code and kept
7679 in ext_nid order. There is a simple program 'tabtest.c' which checks
7680 this. New extensions are not added too often so this file can readily
7681 be maintained manually.
7683 There are two big advantages in doing things this way. The extensions
7684 can be looked up immediately and no longer need to be "added" using
7685 X509V3_add_standard_extensions(): this function now does nothing.
7686 [Side note: I get *lots* of email saying the extension code doesn't
7687 work because people forget to call this function]
7688 Also no dynamic allocation is done unless new extensions are added:
7689 so if we don't add custom extensions there is no need to call
7690 X509V3_EXT_cleanup().
7693 *) Modify enc utility's salting as follows: make salting the default. Add a
7694 magic header, so unsalted files fail gracefully instead of just decrypting
7695 to garbage. This is because not salting is a big security hole, so people
7696 should be discouraged from doing it.
7699 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7700 digest to be passed on the command line but it only used this
7701 parameter when signing a certificate. Modified so all relevant
7702 operations are affected by the digest parameter including the
7703 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7704 DSA key was used because it didn't fix the digest.
7707 *) Initial certificate chain verify code. Currently tests the untrusted
7708 certificates for consistency with the verify purpose (which is set
7709 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7711 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7712 this is because it will reject chains with invalid extensions whereas
7713 every previous version of OpenSSL and SSLeay made no checks at all.
7715 Trust code: checks the root CA for the relevant trust settings. Trust
7716 settings have an initial value consistent with the verify purpose: e.g.
7717 if the verify purpose is for SSL client use it expects the CA to be
7718 trusted for SSL client use. However the default value can be changed to
7719 permit custom trust settings: one example of this would be to only trust
7720 certificates from a specific "secure" set of CAs.
7722 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7723 which should be used for version portability: especially since the
7724 verify structure is likely to change more often now.
7726 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7727 to set them. If not set then assume SSL clients will verify SSL servers
7730 Two new options to the verify program: -untrusted allows a set of
7731 untrusted certificates to be passed in and -purpose which sets the
7732 intended purpose of the certificate. If a purpose is set then the
7733 new chain verify code is used to check extension consistency.
7736 *) Support for the authority information access extension.
7739 *) Modify RSA and DSA PEM read routines to transparently handle
7740 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7741 public keys in a format compatible with certificate
7742 SubjectPublicKeyInfo structures. Unfortunately there were already
7743 functions called *_PublicKey_* which used various odd formats so
7744 these are retained for compatibility: however the DSA variants were
7745 never in a public release so they have been deleted. Changed dsa/rsa
7746 utilities to handle the new format: note no releases ever handled public
7747 keys so we should be OK.
7749 The primary motivation for this change is to avoid the same fiasco
7750 that dogs private keys: there are several incompatible private key
7751 formats some of which are standard and some OpenSSL specific and
7752 require various evil hacks to allow partial transparent handling and
7753 even then it doesn't work with DER formats. Given the option anything
7754 other than PKCS#8 should be dumped: but the other formats have to
7755 stay in the name of compatibility.
7757 With public keys and the benefit of hindsight one standard format
7758 is used which works with EVP_PKEY, RSA or DSA structures: though
7759 it clearly returns an error if you try to read the wrong kind of key.
7761 Added a -pubkey option to the 'x509' utility to output the public key.
7762 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7763 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7764 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7765 that do the same as the EVP_PKEY_assign_*() except they up the
7766 reference count of the added key (they don't "swallow" the
7770 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7771 CRLs would fail if the file contained no certificates or no CRLs:
7772 added a new function to read in both types and return the number
7773 read: this means that if none are read it will be an error. The
7774 DER versions of the certificate and CRL reader would always fail
7775 because it isn't possible to mix certificates and CRLs in DER format
7776 without choking one or the other routine. Changed this to just read
7777 a certificate: this is the best we can do. Also modified the code
7778 in apps/verify.c to take notice of return codes: it was previously
7779 attempting to read in certificates from NULL pointers and ignoring
7780 any errors: this is one reason why the cert and CRL reader seemed
7781 to work. It doesn't check return codes from the default certificate
7782 routines: these may well fail if the certificates aren't installed.
7785 *) Code to support otherName option in GeneralName.
7788 *) First update to verify code. Change the verify utility
7789 so it warns if it is passed a self signed certificate:
7790 for consistency with the normal behaviour. X509_verify
7791 has been modified to it will now verify a self signed
7792 certificate if *exactly* the same certificate appears
7793 in the store: it was previously impossible to trust a
7794 single self signed certificate. This means that:
7795 openssl verify ss.pem
7796 now gives a warning about a self signed certificate but
7797 openssl verify -CAfile ss.pem ss.pem
7801 *) For servers, store verify_result in SSL_SESSION data structure
7802 (and add it to external session representation).
7803 This is needed when client certificate verifications fails,
7804 but an application-provided verification callback (set by
7805 SSL_CTX_set_cert_verify_callback) allows accepting the session
7806 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7807 but returns 1): When the session is reused, we have to set
7808 ssl->verify_result to the appropriate error code to avoid
7810 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7812 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7813 case in PKCS7_dataInit() where the signed PKCS7 structure
7814 didn't contain any existing data because it was being created.
7815 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7817 *) Add a salt to the key derivation routines in enc.c. This
7818 forms the first 8 bytes of the encrypted file. Also add a
7819 -S option to allow a salt to be input on the command line.
7822 *) New function X509_cmp(). Oddly enough there wasn't a function
7823 to compare two certificates. We do this by working out the SHA1
7824 hash and comparing that. X509_cmp() will be needed by the trust
7828 *) SSL_get1_session() is like SSL_get_session(), but increments
7829 the reference count in the SSL_SESSION returned.
7830 [Geoff Thorpe <geoff@eu.c2.net>]
7832 *) Fix for 'req': it was adding a null to request attributes.
7833 Also change the X509_LOOKUP and X509_INFO code to handle
7834 certificate auxiliary information.
7837 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7841 *) Add the possibility to add extra information to the memory leak
7842 detecting output, to form tracebacks, showing from where each
7843 allocation was originated: CRYPTO_push_info("constant string") adds
7844 the string plus current file name and line number to a per-thread
7845 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7846 is like calling CYRPTO_pop_info() until the stack is empty.
7847 Also updated memory leak detection code to be multi-thread-safe.
7850 *) Add options -text and -noout to pkcs7 utility and delete the
7851 encryption options which never did anything. Update docs.
7854 *) Add options to some of the utilities to allow the pass phrase
7855 to be included on either the command line (not recommended on
7856 OSes like Unix) or read from the environment. Update the
7857 manpages and fix a few bugs.
7860 *) Add a few manpages for some of the openssl commands.
7863 *) Fix the -revoke option in ca. It was freeing up memory twice,
7864 leaking and not finding already revoked certificates.
7867 *) Extensive changes to support certificate auxiliary information.
7868 This involves the use of X509_CERT_AUX structure and X509_AUX
7869 functions. An X509_AUX function such as PEM_read_X509_AUX()
7870 can still read in a certificate file in the usual way but it
7871 will also read in any additional "auxiliary information". By
7872 doing things this way a fair degree of compatibility can be
7873 retained: existing certificates can have this information added
7874 using the new 'x509' options.
7876 Current auxiliary information includes an "alias" and some trust
7877 settings. The trust settings will ultimately be used in enhanced
7878 certificate chain verification routines: currently a certificate
7879 can only be trusted if it is self signed and then it is trusted
7883 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7884 The problem was that one of the replacement routines had not been working
7885 since SSLeay releases. For now the offending routine has been replaced
7886 with non-optimised assembler. Even so, this now gives around 95%
7887 performance improvement for 1024 bit RSA signs.
7890 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7891 handling. Most clients have the effective key size in bits equal to
7892 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7893 A few however don't do this and instead use the size of the decrypted key
7894 to determine the RC2 key length and the AlgorithmIdentifier to determine
7895 the effective key length. In this case the effective key length can still
7896 be 40 bits but the key length can be 168 bits for example. This is fixed
7897 by manually forcing an RC2 key into the EVP_PKEY structure because the
7898 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7899 the key length and effective key length are equal.
7902 *) Add a bunch of functions that should simplify the creation of
7903 X509_NAME structures. Now you should be able to do:
7904 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7905 and have it automatically work out the correct field type and fill in
7906 the structures. The more adventurous can try:
7907 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7908 and it will (hopefully) work out the correct multibyte encoding.
7911 *) Change the 'req' utility to use the new field handling and multibyte
7912 copy routines. Before the DN field creation was handled in an ad hoc
7913 way in req, ca, and x509 which was rather broken and didn't support
7914 BMPStrings or UTF8Strings. Since some software doesn't implement
7915 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7916 using the dirstring_type option. See the new comment in the default
7917 openssl.cnf for more info.
7920 *) Make crypto/rand/md_rand.c more robust:
7921 - Assure unique random numbers after fork().
7922 - Make sure that concurrent threads access the global counter and
7923 md serializably so that we never lose entropy in them
7924 or use exactly the same state in multiple threads.
7925 Access to the large state is not always serializable because
7926 the additional locking could be a performance killer, and
7927 md should be large enough anyway.
7930 *) New file apps/app_rand.c with commonly needed functionality
7931 for handling the random seed file.
7933 Use the random seed file in some applications that previously did not:
7935 dsaparam -genkey (which also ignored its '-rand' option),
7938 x509 (when signing).
7939 Except on systems with /dev/urandom, it is crucial to have a random
7940 seed file at least for key creation, DSA signing, and for DH exchanges;
7941 for RSA signatures we could do without one.
7943 gendh and gendsa (unlike genrsa) used to read only the first byte
7944 of each file listed in the '-rand' option. The function as previously
7945 found in genrsa is now in app_rand.c and is used by all programs
7946 that support '-rand'.
7949 *) In RAND_write_file, use mode 0600 for creating files;
7950 don't just chmod when it may be too late.
7953 *) Report an error from X509_STORE_load_locations
7954 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7957 *) New function ASN1_mbstring_copy() this copies a string in either
7958 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7959 into an ASN1_STRING type. A mask of permissible types is passed
7960 and it chooses the "minimal" type to use or an error if not type
7964 *) Add function equivalents to the various macros in asn1.h. The old
7965 macros are retained with an M_ prefix. Code inside the library can
7966 use the M_ macros. External code (including the openssl utility)
7967 should *NOT* in order to be "shared library friendly".
7970 *) Add various functions that can check a certificate's extensions
7971 to see if it usable for various purposes such as SSL client,
7972 server or S/MIME and CAs of these types. This is currently
7973 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7974 verification. Also added a -purpose flag to x509 utility to
7975 print out all the purposes.
7978 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7982 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7983 for, obtain and decode and extension and obtain its critical flag.
7984 This allows all the necessary extension code to be handled in a
7985 single function call.
7988 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7989 platforms. See crypto/rc4/rc4_enc.c for further details.
7992 *) New -noout option to asn1parse. This causes no output to be produced
7993 its main use is when combined with -strparse and -out to extract data
7994 from a file (which may not be in ASN.1 format).
7997 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7998 when producing the local key id.
7999 [Richard Levitte <levitte@stacken.kth.se>]
8001 *) New option -dhparam in s_server. This allows a DH parameter file to be
8002 stated explicitly. If it is not stated then it tries the first server
8003 certificate file. The previous behaviour hard coded the filename
8007 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8008 a public key to be input or output. For example:
8009 openssl rsa -in key.pem -pubout -out pubkey.pem
8010 Also added necessary DSA public key functions to handle this.
8013 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8014 in the message. This was handled by allowing
8015 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8016 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8018 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8019 to the end of the strings whereas this didn't. This would cause problems
8020 if strings read with d2i_ASN1_bytes() were later modified.
8021 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8023 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8024 data and it contains EOF it will end up returning an error. This is
8025 caused by input 46 bytes long. The cause is due to the way base64
8026 BIOs find the start of base64 encoded data. They do this by trying a
8027 trial decode on each line until they find one that works. When they
8028 do a flag is set and it starts again knowing it can pass all the
8029 data directly through the decoder. Unfortunately it doesn't reset
8030 the context it uses. This means that if EOF is reached an attempt
8031 is made to pass two EOFs through the context and this causes the
8032 resulting error. This can also cause other problems as well. As is
8033 usual with these problems it takes *ages* to find and the fix is
8034 trivial: move one line.
8035 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8037 *) Ugly workaround to get s_client and s_server working under Windows. The
8038 old code wouldn't work because it needed to select() on sockets and the
8039 tty (for keypresses and to see if data could be written). Win32 only
8040 supports select() on sockets so we select() with a 1s timeout on the
8041 sockets and then see if any characters are waiting to be read, if none
8042 are present then we retry, we also assume we can always write data to
8043 the tty. This isn't nice because the code then blocks until we've
8044 received a complete line of data and it is effectively polling the
8045 keyboard at 1s intervals: however it's quite a bit better than not
8046 working at all :-) A dedicated Windows application might handle this
8047 with an event loop for example.
8050 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8051 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8052 will be called when RSA_sign() and RSA_verify() are used. This is useful
8053 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8054 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8055 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8056 This necessitated the support of an extra signature type NID_md5_sha1
8057 for SSL signatures and modifications to the SSL library to use it instead
8058 of calling RSA_public_decrypt() and RSA_private_encrypt().
8061 *) Add new -verify -CAfile and -CApath options to the crl program, these
8062 will lookup a CRL issuers certificate and verify the signature in a
8063 similar way to the verify program. Tidy up the crl program so it
8064 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8065 less strict. It will now permit CRL extensions even if it is not
8066 a V2 CRL: this will allow it to tolerate some broken CRLs.
8069 *) Initialize all non-automatic variables each time one of the openssl
8070 sub-programs is started (this is necessary as they may be started
8071 multiple times from the "OpenSSL>" prompt).
8072 [Lennart Bang, Bodo Moeller]
8074 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8075 removing all other RSA functionality (this is what NO_RSA does). This
8076 is so (for example) those in the US can disable those operations covered
8077 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8081 *) Non-copying interface to BIO pairs.
8082 (still largely untested)
8085 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8086 ASCII string. This was handled independently in various places before.
8089 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8090 UTF8 strings a character at a time.
8093 *) Use client_version from client hello to select the protocol
8094 (s23_srvr.c) and for RSA client key exchange verification
8095 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8098 *) Add various utility functions to handle SPKACs, these were previously
8099 handled by poking round in the structure internals. Added new function
8100 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8101 print, verify and generate SPKACs. Based on an original idea from
8102 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8105 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8108 *) Allow the config file extension section to be overwritten on the
8109 command line. Based on an original idea from Massimiliano Pala
8110 <madwolf@comune.modena.it>. The new option is called -extensions
8111 and can be applied to ca, req and x509. Also -reqexts to override
8112 the request extensions in req and -crlexts to override the crl extensions
8116 *) Add new feature to the SPKAC handling in ca. Now you can include
8117 the same field multiple times by preceding it by "XXXX." for example:
8120 this is the same syntax as used in the req config file.
8123 *) Allow certificate extensions to be added to certificate requests. These
8124 are specified in a 'req_extensions' option of the req section of the
8125 config file. They can be printed out with the -text option to req but
8126 are otherwise ignored at present.
8129 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8130 data read consists of only the final block it would not decrypted because
8131 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8132 A misplaced 'break' also meant the decrypted final block might not be
8133 copied until the next read.
8136 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8137 a few extra parameters to the DH structure: these will be useful if
8138 for example we want the value of 'q' or implement X9.42 DH.
8141 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8142 provides hooks that allow the default DSA functions or functions on a
8143 "per key" basis to be replaced. This allows hardware acceleration and
8144 hardware key storage to be handled without major modification to the
8145 library. Also added low level modexp hooks and CRYPTO_EX structure and
8146 associated functions.
8149 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8150 as "read only": it can't be written to and the buffer it points to will
8151 not be freed. Reading from a read only BIO is much more efficient than
8152 a normal memory BIO. This was added because there are several times when
8153 an area of memory needs to be read from a BIO. The previous method was
8154 to create a memory BIO and write the data to it, this results in two
8155 copies of the data and an O(n^2) reading algorithm. There is a new
8156 function BIO_new_mem_buf() which creates a read only memory BIO from
8157 an area of memory. Also modified the PKCS#7 routines to use read only
8161 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8162 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8163 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8164 but a retry condition occured while trying to read the rest.
8167 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8168 NID_pkcs7_encrypted by default: this was wrong since this should almost
8169 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8170 the encrypted data type: this is a more sensible place to put it and it
8171 allows the PKCS#12 code to be tidied up that duplicated this
8175 *) Changed obj_dat.pl script so it takes its input and output files on
8176 the command line. This should avoid shell escape redirection problems
8180 *) Initial support for certificate extension requests, these are included
8181 in things like Xenroll certificate requests. Included functions to allow
8182 extensions to be obtained and added.
8185 *) -crlf option to s_client and s_server for sending newlines as
8186 CRLF (as required by many protocols).
8189 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8191 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8192 [Ralf S. Engelschall]
8194 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8195 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8197 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8201 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8202 DH parameters/keys (q is lost during that conversion, but the resulting
8203 DH parameters contain its length).
8205 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8206 much faster than DH_generate_parameters (which creates parameters
8207 where p = 2*q + 1), and also the smaller q makes DH computations
8208 much more efficient (160-bit exponentiation instead of 1024-bit
8209 exponentiation); so this provides a convenient way to support DHE
8210 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8211 utter importance to use
8212 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8214 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8215 when such DH parameters are used, because otherwise small subgroup
8216 attacks may become possible!
8219 *) Avoid memory leak in i2d_DHparams.
8222 *) Allow the -k option to be used more than once in the enc program:
8223 this allows the same encrypted message to be read by multiple recipients.
8226 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8227 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8228 it will always use the numerical form of the OID, even if it has a short
8232 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8233 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8234 otherwise bn_mod_exp was called. In the case of hardware keys for example
8235 no private key components need be present and it might store extra data
8236 in the RSA structure, which cannot be accessed from bn_mod_exp.
8237 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8238 private key operations.
8241 *) Added support for SPARC Linux.
8244 *) pem_password_cb function type incompatibly changed from
8245 typedef int pem_password_cb(char *buf, int size, int rwflag);
8247 ....(char *buf, int size, int rwflag, void *userdata);
8248 so that applications can pass data to their callbacks:
8249 The PEM[_ASN1]_{read,write}... functions and macros now take an
8250 additional void * argument, which is just handed through whenever
8251 the password callback is called.
8252 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8254 New function SSL_CTX_set_default_passwd_cb_userdata.
8256 Compatibility note: As many C implementations push function arguments
8257 onto the stack in reverse order, the new library version is likely to
8258 interoperate with programs that have been compiled with the old
8259 pem_password_cb definition (PEM_whatever takes some data that
8260 happens to be on the stack as its last argument, and the callback
8261 just ignores this garbage); but there is no guarantee whatsoever that
8264 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8265 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8266 problems not only on Windows, but also on some Unix platforms.
8267 To avoid problematic command lines, these definitions are now in an
8268 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8269 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8272 *) MIPS III/IV assembler module is reimplemented.
8275 *) More DES library cleanups: remove references to srand/rand and
8276 delete an unused file.
8279 *) Add support for the the free Netwide assembler (NASM) under Win32,
8280 since not many people have MASM (ml) and it can be hard to obtain.
8281 This is currently experimental but it seems to work OK and pass all
8282 the tests. Check out INSTALL.W32 for info.
8285 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8286 without temporary keys kept an extra copy of the server key,
8287 and connections with temporary keys did not free everything in case
8291 *) New function RSA_check_key and new openssl rsa option -check
8292 for verifying the consistency of RSA keys.
8293 [Ulf Moeller, Bodo Moeller]
8295 *) Various changes to make Win32 compile work:
8296 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8297 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8298 comparison" warnings.
8299 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8302 *) Add a debugging option to PKCS#5 v2 key generation function: when
8303 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8304 derived keys are printed to stderr.
8307 *) Copy the flags in ASN1_STRING_dup().
8308 [Roman E. Pavlov <pre@mo.msk.ru>]
8310 *) The x509 application mishandled signing requests containing DSA
8311 keys when the signing key was also DSA and the parameters didn't match.
8313 It was supposed to omit the parameters when they matched the signing key:
8314 the verifying software was then supposed to automatically use the CA's
8315 parameters if they were absent from the end user certificate.
8317 Omitting parameters is no longer recommended. The test was also
8318 the wrong way round! This was probably due to unusual behaviour in
8319 EVP_cmp_parameters() which returns 1 if the parameters match.
8320 This meant that parameters were omitted when they *didn't* match and
8321 the certificate was useless. Certificates signed with 'ca' didn't have
8323 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8325 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8326 The interface is as follows:
8327 Applications can use
8328 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8329 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8330 "off" is now the default.
8331 The library internally uses
8332 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8333 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8334 to disable memory-checking temporarily.
8336 Some inconsistent states that previously were possible (and were
8337 even the default) are now avoided.
8339 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8340 with each memory chunk allocated; this is occasionally more helpful
8341 than just having a counter.
8343 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8345 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8349 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8350 which largely parallels "options", but is for changing API behaviour,
8351 whereas "options" are about protocol behaviour.
8352 Initial "mode" flags are:
8354 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8355 a single record has been written.
8356 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8357 retries use the same buffer location.
8358 (But all of the contents must be
8362 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8365 *) Fix problems with no-hmac etc.
8366 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8368 *) New functions RSA_get_default_method(), RSA_set_method() and
8369 RSA_get_method(). These allows replacement of RSA_METHODs without having
8370 to mess around with the internals of an RSA structure.
8373 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8374 Also really enable memory leak checks in openssl.c and in some
8376 [Chad C. Mulligan, Bodo Moeller]
8378 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8379 up the length of negative integers. This has now been simplified to just
8380 store the length when it is first determined and use it later, rather
8381 than trying to keep track of where data is copied and updating it to
8383 [Steve Henson, reported by Brien Wheeler
8384 <bwheeler@authentica-security.com>]
8386 *) Add a new function PKCS7_signatureVerify. This allows the verification
8387 of a PKCS#7 signature but with the signing certificate passed to the
8388 function itself. This contrasts with PKCS7_dataVerify which assumes the
8389 certificate is present in the PKCS#7 structure. This isn't always the
8390 case: certificates can be omitted from a PKCS#7 structure and be
8391 distributed by "out of band" means (such as a certificate database).
8394 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8395 function prototypes in pem.h, also change util/mkdef.pl to add the
8396 necessary function names.
8399 *) mk1mf.pl (used by Windows builds) did not properly read the
8400 options set by Configure in the top level Makefile, and Configure
8401 was not even able to write more than one option correctly.
8402 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8405 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8406 file to be loaded from a BIO or FILE pointer. The BIO version will
8407 for example allow memory BIOs to contain config info.
8410 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8411 Whoever hopes to achieve shared-library compatibility across versions
8412 must use this, not the compile-time macro.
8413 (Exercise 0.9.4: Which is the minimum library version required by
8415 Note: All this applies only to multi-threaded programs, others don't
8419 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8420 through a BIO pair triggered the default case, i.e.
8421 SSLerr(...,SSL_R_UNKNOWN_STATE).
8424 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8425 can use the SSL library even if none of the specific BIOs is
8429 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8430 for the encoded length.
8431 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8433 *) Add initial documentation of the X509V3 functions.
8436 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8437 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8438 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8439 secure PKCS#8 private key format with a high iteration count.
8442 *) Fix determination of Perl interpreter: A perl or perl5
8443 _directory_ in $PATH was also accepted as the interpreter.
8444 [Ralf S. Engelschall]
8446 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8447 wrong with it but it was very old and did things like calling
8448 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8452 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8453 to use the new extension code.
8456 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8457 with macros. This should make it easier to change their form, add extra
8458 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8462 *) Add to configuration table a new entry that can specify an alternative
8463 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8464 according to Mark Crispin <MRC@Panda.COM>.
8468 *) DES CBC did not update the IV. Weird.
8471 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8472 Changing the behaviour of the former might break existing programs --
8473 where IV updating is needed, des_ncbc_encrypt can be used.
8476 *) When bntest is run from "make test" it drives bc to check its
8477 calculations, as well as internally checking them. If an internal check
8478 fails, it needs to cause bc to give a non-zero result or make test carries
8479 on without noticing the failure. Fixed.
8482 *) DES library cleanups.
8485 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8486 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8487 ciphers. NOTE: although the key derivation function has been verified
8488 against some published test vectors it has not been extensively tested
8489 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8493 *) Instead of "mkdir -p", which is not fully portable, use new
8494 Perl script "util/mkdir-p.pl".
8497 *) Rewrite the way password based encryption (PBE) is handled. It used to
8498 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8499 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8500 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8501 the 'parameter' field of the AlgorithmIdentifier is passed to the
8502 underlying key generation function so it must do its own ASN1 parsing.
8503 This has also changed the EVP_PBE_CipherInit() function which now has a
8504 'parameter' argument instead of literal salt and iteration count values
8505 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8508 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8509 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8510 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8511 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8512 value was just used as a "magic string" and not used directly its
8513 value doesn't matter.
8516 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8520 *) "linux-sparc64" configuration (ultrapenguin).
8521 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8522 "linux-sparc" configuration.
8523 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8525 *) config now generates no-xxx options for missing ciphers.
8528 *) Support the EBCDIC character set (work in progress).
8529 File ebcdic.c not yet included because it has a different license.
8530 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8532 *) Support BS2000/OSD-POSIX.
8533 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8535 *) Make callbacks for key generation use void * instead of char *.
8538 *) Make S/MIME samples compile (not yet tested).
8541 *) Additional typesafe stacks.
8544 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8548 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8550 *) New configuration variant "sco5-gcc".
8552 *) Updated some demos.
8553 [Sean O Riordain, Wade Scholine]
8555 *) Add missing BIO_free at exit of pkcs12 application.
8558 *) Fix memory leak in conf.c.
8561 *) Updates for Win32 to assembler version of MD5.
8564 *) Set #! path to perl in apps/der_chop to where we found it
8565 instead of using a fixed path.
8568 *) SHA library changes for irix64-mips4-cc.
8571 *) Improvements for VMS support.
8575 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8577 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8578 This also avoids the problems with SC4.2 and unpatched SC5.
8579 [Andy Polyakov <appro@fy.chalmers.se>]
8581 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8582 These are required because of the typesafe stack would otherwise break
8583 existing code. If old code used a structure member which used to be STACK
8584 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8585 sk_num or sk_value it would produce an error because the num, data members
8586 are not present in STACK_OF. Now it just produces a warning. sk_set
8587 replaces the old method of assigning a value to sk_value
8588 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8589 that does this will no longer work (and should use sk_set instead) but
8590 this could be regarded as a "questionable" behaviour anyway.
8593 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8594 correctly handle encrypted S/MIME data.
8597 *) Change type of various DES function arguments from des_cblock
8598 (which means, in function argument declarations, pointer to char)
8599 to des_cblock * (meaning pointer to array with 8 char elements),
8600 which allows the compiler to do more typechecking; it was like
8601 that back in SSLeay, but with lots of ugly casts.
8603 Introduce new type const_des_cblock.
8606 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8607 problems: find RecipientInfo structure that matches recipient certificate
8608 and initialise the ASN1 structures properly based on passed cipher.
8611 *) Belatedly make the BN tests actually check the results.
8614 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8615 to and from BNs: it was completely broken. New compilation option
8616 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8617 key elements as negative integers.
8620 *) Reorganize and speed up MD5.
8621 [Andy Polyakov <appro@fy.chalmers.se>]
8624 [Richard Levitte <richard@levitte.org>]
8626 *) New option -out to asn1parse to allow the parsed structure to be
8627 output to a file. This is most useful when combined with the -strparse
8628 option to examine the output of things like OCTET STRINGS.
8631 *) Make SSL library a little more fool-proof by not requiring any longer
8632 that SSL_set_{accept,connect}_state be called before
8633 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8634 in many applications because usually everything *appeared* to work as
8635 intended anyway -- now it really works as intended).
8638 *) Move openssl.cnf out of lib/.
8641 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8642 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8643 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8644 [Ralf S. Engelschall]
8646 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8647 handle PKCS#7 enveloped data properly.
8648 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8650 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8651 copying pointers. The cert_st handling is changed by this in
8652 various ways (and thus what used to be known as ctx->default_cert
8653 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8654 any longer when s->cert does not give us what we need).
8655 ssl_cert_instantiate becomes obsolete by this change.
8656 As soon as we've got the new code right (possibly it already is?),
8657 we have solved a couple of bugs of the earlier code where s->cert
8658 was used as if it could not have been shared with other SSL structures.
8660 Note that using the SSL API in certain dirty ways now will result
8661 in different behaviour than observed with earlier library versions:
8662 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8663 does not influence s as it used to.
8665 In order to clean up things more thoroughly, inside SSL_SESSION
8666 we don't use CERT any longer, but a new structure SESS_CERT
8667 that holds per-session data (if available); currently, this is
8668 the peer's certificate chain and, for clients, the server's certificate
8669 and temporary key. CERT holds only those values that can have
8670 meaningful defaults in an SSL_CTX.
8673 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8674 from the internal representation. Various PKCS#7 fixes: remove some
8675 evil casts and set the enc_dig_alg field properly based on the signing
8679 *) Allow PKCS#12 password to be set from the command line or the
8680 environment. Let 'ca' get its config file name from the environment
8681 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8685 *) Allow certificate policies extension to use an IA5STRING for the
8686 organization field. This is contrary to the PKIX definition but
8687 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8691 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8692 without disallowing inline assembler and the like for non-pedantic builds.
8695 *) Support Borland C++ builder.
8696 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8701 *) SHA-1 cleanups and performance enhancements.
8702 [Andy Polyakov <appro@fy.chalmers.se>]
8704 *) Sparc v8plus assembler for the bignum library.
8705 [Andy Polyakov <appro@fy.chalmers.se>]
8707 *) Accept any -xxx and +xxx compiler options in Configure.
8710 *) Update HPUX configuration.
8713 *) Add missing sk_<type>_unshift() function to safestack.h
8714 [Ralf S. Engelschall]
8716 *) New function SSL_CTX_use_certificate_chain_file that sets the
8717 "extra_cert"s in addition to the certificate. (This makes sense
8718 only for "PEM" format files, as chains as a whole are not
8722 *) Support verify_depth from the SSL API.
8723 x509_vfy.c had what can be considered an off-by-one-error:
8724 Its depth (which was not part of the external interface)
8725 was actually counting the number of certificates in a chain;
8726 now it really counts the depth.
8729 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8730 instead of X509err, which often resulted in confusing error
8731 messages since the error codes are not globally unique
8732 (e.g. an alleged error in ssl3_accept when a certificate
8733 didn't match the private key).
8735 *) New function SSL_CTX_set_session_id_context that allows to set a default
8736 value (so that you don't need SSL_set_session_id_context for each
8737 connection using the SSL_CTX).
8740 *) OAEP decoding bug fix.
8743 *) Support INSTALL_PREFIX for package builders, as proposed by
8747 *) New Configure options "threads" and "no-threads". For systems
8748 where the proper compiler options are known (currently Solaris
8749 and Linux), "threads" is the default.
8752 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8755 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8756 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8757 such as /usr/local/bin.
8760 *) "make linux-shared" to build shared libraries.
8761 [Niels Poppe <niels@netbox.org>]
8763 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8766 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8767 extension adding in x509 utility.
8770 *) Remove NOPROTO sections and error code comments.
8773 *) Partial rewrite of the DEF file generator to now parse the ANSI
8777 *) New Configure options --prefix=DIR and --openssldir=DIR.
8780 *) Complete rewrite of the error code script(s). It is all now handled
8781 by one script at the top level which handles error code gathering,
8782 header rewriting and C source file generation. It should be much better
8783 than the old method: it now uses a modified version of Ulf's parser to
8784 read the ANSI prototypes in all header files (thus the old K&R definitions
8785 aren't needed for error creation any more) and do a better job of
8786 translating function codes into names. The old 'ASN1 error code imbedded
8787 in a comment' is no longer necessary and it doesn't use .err files which
8788 have now been deleted. Also the error code call doesn't have to appear all
8789 on one line (which resulted in some large lines...).
8792 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8795 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8796 0 (which usually indicates a closed connection), but continue reading.
8799 *) Fix some race conditions.
8802 *) Add support for CRL distribution points extension. Add Certificate
8803 Policies and CRL distribution points documentation.
8806 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8809 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8810 8 of keying material. Merlin has also confirmed interop with this fix
8811 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8812 [Merlin Hughes <merlin@baltimore.ie>]
8814 *) Fix lots of warnings.
8815 [Richard Levitte <levitte@stacken.kth.se>]
8817 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8818 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8819 [Richard Levitte <levitte@stacken.kth.se>]
8821 *) Fix problems with sizeof(long) == 8.
8822 [Andy Polyakov <appro@fy.chalmers.se>]
8824 *) Change functions to ANSI C.
8827 *) Fix typos in error codes.
8828 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8830 *) Remove defunct assembler files from Configure.
8833 *) SPARC v8 assembler BIGNUM implementation.
8834 [Andy Polyakov <appro@fy.chalmers.se>]
8836 *) Support for Certificate Policies extension: both print and set.
8837 Various additions to support the r2i method this uses.
8840 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8841 return a const string when you are expecting an allocated buffer.
8844 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8845 types DirectoryString and DisplayText.
8848 *) Add code to allow r2i extensions to access the configuration database,
8849 add an LHASH database driver and add several ctx helper functions.
8852 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8853 fail when they extended the size of a BIGNUM.
8856 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8857 support typesafe stack.
8860 *) Fix typo in SSL_[gs]et_options().
8861 [Nils Frostberg <nils@medcom.se>]
8863 *) Delete various functions and files that belonged to the (now obsolete)
8864 old X509V3 handling code.
8867 *) New Configure option "rsaref".
8870 *) Don't auto-generate pem.h.
8873 *) Introduce type-safe ASN.1 SETs.
8876 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8877 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8879 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8880 that links with OpenSSL (well at least cause lots of warnings), but fear
8881 not: the conversion is trivial, and it eliminates loads of evil casts. A
8882 few STACKed things have been converted already. Feel free to convert more.
8883 In the fullness of time, I'll do away with the STACK type altogether.
8886 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8887 specified in <certfile> by updating the entry in the index.txt file.
8888 This way one no longer has to edit the index.txt file manually for
8889 revoking a certificate. The -revoke option does the gory details now.
8890 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8892 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8893 `-text' option at all and this way the `-noout -text' combination was
8894 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8895 [Ralf S. Engelschall]
8897 *) Make sure a corresponding plain text error message exists for the
8898 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8899 verify callback function determined that a certificate was revoked.
8900 [Ralf S. Engelschall]
8902 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8903 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8904 all available cipers including rc5, which was forgotten until now.
8905 In order to let the testing shell script know which algorithms
8906 are available, a new (up to now undocumented) command
8907 "openssl list-cipher-commands" is used.
8910 *) Bugfix: s_client occasionally would sleep in select() when
8911 it should have checked SSL_pending() first.
8914 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8915 the raw DSA values prior to ASN.1 encoding.
8918 *) Tweaks to Configure
8919 [Niels Poppe <niels@netbox.org>]
8921 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8925 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8928 *) New config option to avoid instructions that are illegal on the 80386.
8929 The default code is faster, but requires at least a 486.
8932 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8933 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8934 same as SSL2_VERSION anyway.
8937 *) New "-showcerts" option for s_client.
8940 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8941 application. Various cleanups and fixes.
8944 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8945 modify error routines to work internally. Add error codes and PBE init
8946 to library startup routines.
8949 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8950 packing functions to asn1 and evp. Changed function names and error
8951 codes along the way.
8954 *) PKCS12 integration: and so it begins... First of several patches to
8955 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8956 objects to objects.h
8959 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8960 and display support for Thawte strong extranet extension.
8963 *) Add LinuxPPC support.
8964 [Jeff Dubrule <igor@pobox.org>]
8966 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8967 bn_div_words in alpha.s.
8968 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8970 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8971 OAEP isn't supported when OpenSSL is built with RSAref.
8972 [Ulf Moeller <ulf@fitug.de>]
8974 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8975 so they no longer are missing under -DNOPROTO.
8976 [Soren S. Jorvang <soren@t.dk>]
8979 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8981 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8982 doesn't work when the session is reused. Coming soon!
8985 *) Fix a security hole, that allows sessions to be reused in the wrong
8986 context thus bypassing client cert protection! All software that uses
8987 client certs and session caches in multiple contexts NEEDS PATCHING to
8988 allow session reuse! A fuller solution is in the works.
8989 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8991 *) Some more source tree cleanups (removed obsolete files
8992 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8993 permission on "config" script to be executable) and a fix for the INSTALL
8995 [Ulf Moeller <ulf@fitug.de>]
8997 *) Remove some legacy and erroneous uses of malloc, free instead of
8999 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9001 *) Make rsa_oaep_test return non-zero on error.
9002 [Ulf Moeller <ulf@fitug.de>]
9004 *) Add support for native Solaris shared libraries. Configure
9005 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9006 if someone would make that last step automatic.
9007 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9009 *) ctx_size was not built with the right compiler during "make links". Fixed.
9012 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9013 except NULL ciphers". This means the default cipher list will no longer
9014 enable NULL ciphers. They need to be specifically enabled e.g. with
9015 the string "DEFAULT:eNULL".
9018 *) Fix to RSA private encryption routines: if p < q then it would
9019 occasionally produce an invalid result. This will only happen with
9020 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9023 *) Be less restrictive and allow also `perl util/perlpath.pl
9024 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9025 because this way one can also use an interpreter named `perl5' (which is
9026 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9027 installed as `perl').
9028 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9030 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9031 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9033 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9034 advapi32.lib to Win32 build and change the pem test comparision
9035 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9036 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9037 and crypto/des/ede_cbcm_enc.c.
9040 *) DES quad checksum was broken on big-endian architectures. Fixed.
9043 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9044 Win32 test batch file so it (might) work again. The Win32 test batch file
9045 is horrible: I feel ill....
9048 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9049 in e_os.h. Audit of header files to check ANSI and non ANSI
9050 sections: 10 functions were absent from non ANSI section and not exported
9051 from Windows DLLs. Fixed up libeay.num for new functions.
9054 *) Make `openssl version' output lines consistent.
9055 [Ralf S. Engelschall]
9057 *) Fix Win32 symbol export lists for BIO functions: Added
9058 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9059 to ms/libeay{16,32}.def.
9060 [Ralf S. Engelschall]
9062 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9063 fine under Unix and passes some trivial tests I've now added. But the
9064 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9065 added to make sure no one expects that this stuff really works in the
9066 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9067 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9069 [Ralf S. Engelschall]
9071 *) Fix the generation of two part addresses in perl.
9072 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9074 *) Add config entry for Linux on MIPS.
9075 [John Tobey <jtobey@channel1.com>]
9077 *) Make links whenever Configure is run, unless we are on Windoze.
9080 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9081 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9085 *) Add a useful kludge to allow package maintainers to specify compiler and
9086 other platforms details on the command line without having to patch the
9087 Configure script everytime: One now can use ``perl Configure
9088 <id>:<details>'', i.e. platform ids are allowed to have details appended
9089 to them (seperated by colons). This is treated as there would be a static
9090 pre-configured entry in Configure's %table under key <id> with value
9091 <details> and ``perl Configure <id>'' is called. So, when you want to
9092 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9093 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9094 now, which overrides the FreeBSD-elf entry on-the-fly.
9095 [Ralf S. Engelschall]
9097 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9100 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9101 on the `perl Configure ...' command line. This way one can compile
9102 OpenSSL libraries with Position Independent Code (PIC) which is needed
9103 for linking it into DSOs.
9104 [Ralf S. Engelschall]
9106 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9110 *) Cleaned up the LICENSE document: The official contact for any license
9111 questions now is the OpenSSL core team under openssl-core@openssl.org.
9112 And add a paragraph about the dual-license situation to make sure people
9113 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9114 to the OpenSSL toolkit.
9115 [Ralf S. Engelschall]
9117 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9118 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9119 Additonally cleaned up the `make links' target: Remove unnecessary
9120 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9121 to speed processing and no longer clutter the display with confusing
9122 stuff. Instead only the actually done links are displayed.
9123 [Ralf S. Engelschall]
9125 *) Permit null encryption ciphersuites, used for authentication only. It used
9126 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9127 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9131 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9132 signed attributes when verifying signatures (this would break them),
9133 the detached data encoding was wrong and public keys obtained using
9134 X509_get_pubkey() weren't freed.
9137 *) Add text documentation for the BUFFER functions. Also added a work around
9138 to a Win95 console bug. This was triggered by the password read stuff: the
9139 last character typed gets carried over to the next fread(). If you were
9140 generating a new cert request using 'req' for example then the last
9141 character of the passphrase would be CR which would then enter the first
9145 *) Added the new `Includes OpenSSL Cryptography Software' button as
9146 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9147 button and can be used by applications based on OpenSSL to show the
9148 relationship to the OpenSSL project.
9149 [Ralf S. Engelschall]
9151 *) Remove confusing variables in function signatures in files
9152 ssl/ssl_lib.c and ssl/ssl.h.
9153 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9155 *) Don't install bss_file.c under PREFIX/include/
9156 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9158 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9159 functions that return function pointers and has support for NT specific
9160 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9161 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9162 unsigned to signed types: this was killing the Win32 compile.
9165 *) Add new certificate file to stack functions,
9166 SSL_add_dir_cert_subjects_to_stack() and
9167 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9168 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9169 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9170 This means that Apache-SSL and similar packages don't have to mess around
9171 to add as many CAs as they want to the preferred list.
9174 *) Experiment with doxygen documentation. Currently only partially applied to
9176 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9177 openssl.doxy as the configuration file.
9180 *) Get rid of remaining C++-style comments which strict C compilers hate.
9181 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9183 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9184 compiled in by default: it has problems with large keys.
9187 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9188 DH private keys and/or callback functions which directly correspond to
9189 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9190 is needed for applications which have to configure certificates on a
9191 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9193 For the RSA certificate situation is makes no difference, but
9194 for the DSA certificate situation this fixes the "no shared cipher"
9195 problem where the OpenSSL cipher selection procedure failed because the
9196 temporary keys were not overtaken from the context and the API provided
9197 no way to reconfigure them.
9198 The new functions now let applications reconfigure the stuff and they
9199 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9200 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9201 non-public-API function ssl_cert_instantiate() is used as a helper
9202 function and also to reduce code redundancy inside ssl_rsa.c.
9203 [Ralf S. Engelschall]
9205 *) Move s_server -dcert and -dkey options out of the undocumented feature
9206 area because they are useful for the DSA situation and should be
9207 recognized by the users.
9208 [Ralf S. Engelschall]
9210 *) Fix the cipher decision scheme for export ciphers: the export bits are
9211 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9212 SSL_EXP_MASK. So, the original variable has to be used instead of the
9213 already masked variable.
9214 [Richard Levitte <levitte@stacken.kth.se>]
9216 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9217 [Richard Levitte <levitte@stacken.kth.se>]
9219 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9220 from `int' to `unsigned int' because it's a length and initialized by
9221 EVP_DigestFinal() which expects an `unsigned int *'.
9222 [Richard Levitte <levitte@stacken.kth.se>]
9224 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9225 script. Instead use the usual Shell->Perl transition trick.
9226 [Ralf S. Engelschall]
9228 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9229 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9230 -noout -modulus' as it's already the case for `openssl rsa -noout
9231 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9232 currently the public key is printed (a decision which was already done by
9233 `openssl dsa -modulus' in the past) which serves a similar purpose.
9234 Additionally the NO_RSA no longer completely removes the whole -modulus
9235 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9237 [Ralf S. Engelschall]
9239 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9240 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9241 [Arne Ansper <arne@ats.cyber.ee>]
9243 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9244 to be added. Now both 'req' and 'ca' can use new objects defined in the
9248 *) Add cool BIO that does syslog (or event log on NT).
9249 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9251 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9252 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9253 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9254 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9257 *) Add preliminary config info for new extension code.
9260 *) Make RSA_NO_PADDING really use no padding.
9261 [Ulf Moeller <ulf@fitug.de>]
9263 *) Generate errors when private/public key check is done.
9266 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9267 for some CRL extensions and new objects added.
9270 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9271 key usage extension and fuller support for authority key id.
9274 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9275 padding method for RSA, which is recommended for new applications in PKCS
9276 #1 v2.0 (RFC 2437, October 1998).
9277 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9278 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9279 against Bleichbacher's attack on RSA.
9280 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9283 *) Updates to the new SSL compression code
9284 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9286 *) Fix so that the version number in the master secret, when passed
9287 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9288 (because the server will not accept higher), that the version number
9289 is 0x03,0x01, not 0x03,0x00
9290 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9292 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9293 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9294 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9297 *) Support for RAW extensions where an arbitrary extension can be
9298 created by including its DER encoding. See apps/openssl.cnf for
9302 *) Make sure latest Perl versions don't interpret some generated C array
9303 code as Perl array code in the crypto/err/err_genc.pl script.
9304 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9306 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9307 not many people have the assembler. Various Win32 compilation fixes and
9308 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9312 *) Modify configure script 'Configure' to automatically create crypto/date.h
9313 file under Win32 and also build pem.h from pem.org. New script
9314 util/mkfiles.pl to create the MINFO file on environments that can't do a
9315 'make files': perl util/mkfiles.pl >MINFO should work.
9318 *) Major rework of DES function declarations, in the pursuit of correctness
9319 and purity. As a result, many evil casts evaporated, and some weirdness,
9320 too. You may find this causes warnings in your code. Zapping your evil
9321 casts will probably fix them. Mostly.
9324 *) Fix for a typo in asn1.h. Bug fix to object creation script
9325 obj_dat.pl. It considered a zero in an object definition to mean
9326 "end of object": none of the objects in objects.h have any zeros
9327 so it wasn't spotted.
9328 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9330 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9331 Masking (CBCM). In the absence of test vectors, the best I have been able
9332 to do is check that the decrypt undoes the encrypt, so far. Send me test
9333 vectors if you have them.
9336 *) Correct calculation of key length for export ciphers (too much space was
9337 allocated for null ciphers). This has not been tested!
9340 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9341 message is now correct (it understands "crypto" and "ssl" on its
9342 command line). There is also now an "update" option. This will update
9343 the util/ssleay.num and util/libeay.num files with any new functions.
9345 perl util/mkdef.pl crypto ssl update
9346 it will update them.
9349 *) Overhauled the Perl interface (perl/*):
9350 - ported BN stuff to OpenSSL's different BN library
9351 - made the perl/ source tree CVS-aware
9352 - renamed the package from SSLeay to OpenSSL (the files still contain
9353 their history because I've copied them in the repository)
9354 - removed obsolete files (the test scripts will be replaced
9355 by better Test::Harness variants in the future)
9356 [Ralf S. Engelschall]
9358 *) First cut for a very conservative source tree cleanup:
9359 1. merge various obsolete readme texts into doc/ssleay.txt
9360 where we collect the old documents and readme texts.
9361 2. remove the first part of files where I'm already sure that we no
9362 longer need them because of three reasons: either they are just temporary
9363 files which were left by Eric or they are preserved original files where
9364 I've verified that the diff is also available in the CVS via "cvs diff
9365 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9366 the crypto/md/ stuff).
9367 [Ralf S. Engelschall]
9369 *) More extension code. Incomplete support for subject and issuer alt
9370 name, issuer and authority key id. Change the i2v function parameters
9371 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9372 what that's for :-) Fix to ASN1 macro which messed up
9373 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9376 *) Preliminary support for ENUMERATED type. This is largely copied from the
9380 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9381 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9383 *) Make sure `make rehash' target really finds the `openssl' program.
9384 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9386 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9387 like to hear about it if this slows down other processors.
9390 *) Add CygWin32 platform information to Configure script.
9391 [Alan Batie <batie@aahz.jf.intel.com>]
9393 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9394 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9396 *) New program nseq to manipulate netscape certificate sequences
9399 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9403 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9404 but the BN code had some problems that would cause failures when
9405 doing certificate verification and some other functions.
9406 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9408 *) Add ASN1 and PEM code to support netscape certificate sequences.
9411 *) Add ASN1 and PEM code to support netscape certificate sequences.
9414 *) Add several PKIX and private extended key usage OIDs.
9417 *) Modify the 'ca' program to handle the new extension code. Modify
9418 openssl.cnf for new extension format, add comments.
9421 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9422 and add a sample to openssl.cnf so req -x509 now adds appropriate
9426 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9427 error code, add initial support to X509_print() and x509 application.
9430 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9431 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9432 stuff is currently isolated and isn't even compiled yet.
9435 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9436 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9437 Removed the versions check from X509 routines when loading extensions:
9438 this allows certain broken certificates that don't set the version
9439 properly to be processed.
9442 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9443 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9444 can still be regenerated with "make depend".
9447 *) Spelling mistake in C version of CAST-128.
9448 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9450 *) Changes to the error generation code. The perl script err-code.pl
9451 now reads in the old error codes and retains the old numbers, only
9452 adding new ones if necessary. It also only changes the .err files if new
9453 codes are added. The makefiles have been modified to only insert errors
9454 when needed (to avoid needlessly modifying header files). This is done
9455 by only inserting errors if the .err file is newer than the auto generated
9456 C file. To rebuild all the error codes from scratch (the old behaviour)
9457 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9458 or delete all the .err files.
9461 *) CAST-128 was incorrectly implemented for short keys. The C version has
9462 been fixed, but is untested. The assembler versions are also fixed, but
9463 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9464 to regenerate it if needed.
9465 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9466 Hagino <itojun@kame.net>]
9468 *) File was opened incorrectly in randfile.c.
9469 [Ulf Möller <ulf@fitug.de>]
9471 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9472 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9473 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9474 al: it's just almost always a UTCTime. Note this patch adds new error
9475 codes so do a "make errors" if there are problems.
9478 *) Correct Linux 1 recognition in config.
9479 [Ulf Möller <ulf@fitug.de>]
9481 *) Remove pointless MD5 hash when using DSA keys in ca.
9482 [Anonymous <nobody@replay.com>]
9484 *) Generate an error if given an empty string as a cert directory. Also
9485 generate an error if handed NULL (previously returned 0 to indicate an
9486 error, but didn't set one).
9487 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9489 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9492 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9493 parameters. This was causing a warning which killed off the Win32 compile.
9496 *) Remove C++ style comments from crypto/bn/bn_local.h.
9497 [Neil Costigan <neil.costigan@celocom.com>]
9499 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9500 based on a text string, looking up short and long names and finally
9501 "dot" format. The "dot" format stuff didn't work. Added new function
9502 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9503 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9504 OID is not part of the table.
9507 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9508 X509_LOOKUP_by_alias().
9511 *) Sort openssl functions by name.
9514 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9515 encryption from sample DSA keys (in case anyone is interested the password
9519 *) Make _all_ *_free functions accept a NULL pointer.
9520 [Frans Heymans <fheymans@isaserver.be>]
9522 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9524 [Anonymous <nobody@replay.com>]
9526 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9527 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9529 *) Don't blow it for numeric -newkey arguments to apps/req.
9530 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9532 *) Temp key "for export" tests were wrong in s3_srvr.c.
9533 [Anonymous <nobody@replay.com>]
9535 *) Add prototype for temp key callback functions
9536 SSL_CTX_set_tmp_{rsa,dh}_callback().
9539 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9540 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9543 *) X509_name_add_entry() freed the wrong thing after an error.
9544 [Arne Ansper <arne@ats.cyber.ee>]
9546 *) rsa_eay.c would attempt to free a NULL context.
9547 [Arne Ansper <arne@ats.cyber.ee>]
9549 *) BIO_s_socket() had a broken should_retry() on Windoze.
9550 [Arne Ansper <arne@ats.cyber.ee>]
9552 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9553 [Arne Ansper <arne@ats.cyber.ee>]
9555 *) Make sure the already existing X509_STORE->depth variable is initialized
9556 in X509_STORE_new(), but document the fact that this variable is still
9557 unused in the certificate verification process.
9558 [Ralf S. Engelschall]
9560 *) Fix the various library and apps files to free up pkeys obtained from
9561 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9564 *) Fix reference counting in X509_PUBKEY_get(). This makes
9565 demos/maurice/example2.c work, amongst others, probably.
9566 [Steve Henson and Ben Laurie]
9568 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9569 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9570 are no longer created. This way we have a single and consistent command
9571 line interface `openssl <command>', similar to `cvs <command>'.
9572 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9574 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9575 BIT STRING wrapper always have zero unused bits.
9578 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9581 *) Make the top-level INSTALL documentation easier to understand.
9584 *) Makefiles updated to exit if an error occurs in a sub-directory
9585 make (including if user presses ^C) [Paul Sutton]
9587 *) Make Montgomery context stuff explicit in RSA data structure.
9590 *) Fix build order of pem and err to allow for generated pem.h.
9593 *) Fix renumbering bug in X509_NAME_delete_entry().
9596 *) Enhanced the err-ins.pl script so it makes the error library number
9597 global and can add a library name. This is needed for external ASN1 and
9598 other error libraries.
9601 *) Fixed sk_insert which never worked properly.
9604 *) Fix ASN1 macros so they can handle indefinite length construted
9605 EXPLICIT tags. Some non standard certificates use these: they can now
9609 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9610 into a single doc/ssleay.txt bundle. This way the information is still
9611 preserved but no longer messes up this directory. Now it's new room for
9612 the new set of documenation files.
9613 [Ralf S. Engelschall]
9615 *) SETs were incorrectly DER encoded. This was a major pain, because they
9616 shared code with SEQUENCEs, which aren't coded the same. This means that
9617 almost everything to do with SETs or SEQUENCEs has either changed name or
9618 number of arguments.
9619 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9621 *) Fix test data to work with the above.
9624 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9625 was already fixed by Eric for 0.9.1 it seems.
9626 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9628 *) Autodetect FreeBSD3.
9631 *) Fix various bugs in Configure. This affects the following platforms:
9635 unixware-2.0-pentium
9639 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9640 before they are needed.
9643 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9647 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9649 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9650 changed SSLeay to OpenSSL in version strings.
9651 [Ralf S. Engelschall]
9653 *) Some fixups to the top-level documents.
9656 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9657 because the symlink to include/ was missing.
9658 [Ralf S. Engelschall]
9660 *) Incorporated the popular no-RSA/DSA-only patches
9661 which allow to compile a RSA-free SSLeay.
9662 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9664 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9665 when "ssleay" is still not found.
9666 [Ralf S. Engelschall]
9668 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9669 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9671 *) Updated the README file.
9672 [Ralf S. Engelschall]
9674 *) Added various .cvsignore files in the CVS repository subdirs
9675 to make a "cvs update" really silent.
9676 [Ralf S. Engelschall]
9678 *) Recompiled the error-definition header files and added
9679 missing symbols to the Win32 linker tables.
9680 [Ralf S. Engelschall]
9682 *) Cleaned up the top-level documents;
9683 o new files: CHANGES and LICENSE
9684 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9685 o merged COPYRIGHT into LICENSE
9686 o removed obsolete TODO file
9687 o renamed MICROSOFT to INSTALL.W32
9688 [Ralf S. Engelschall]
9690 *) Removed dummy files from the 0.9.1b source tree:
9691 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9692 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9693 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9694 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9695 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9696 [Ralf S. Engelschall]
9698 *) Added various platform portability fixes.
9701 *) The Genesis of the OpenSSL rpject:
9702 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9703 Young and Tim J. Hudson created while they were working for C2Net until
9705 [The OpenSSL Project]
9708 Changes between 0.9.0b and 0.9.1b [not released]
9710 *) Updated a few CA certificates under certs/
9713 *) Changed some BIGNUM api stuff.
9716 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9717 DGUX x86, Linux Alpha, etc.
9720 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9721 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9725 *) Add -strparse option to asn1pars program which parses nested
9727 [Dr Stephen Henson <shenson@bigfoot.com>]
9729 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9732 *) DSA fix for "ca" program.
9735 *) Added "-genkey" option to "dsaparam" program.
9738 *) Added RIPE MD160 (rmd160) message digest.
9741 *) Added -a (all) option to "ssleay version" command.
9744 *) Added PLATFORM define which is the id given to Configure.
9747 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9750 *) Extended the ASN.1 parser routines.
9753 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9756 *) Added a BN_CTX to the BN library.
9759 *) Fixed the weak key values in DES library
9762 *) Changed API in EVP library for cipher aliases.
9765 *) Added support for RC2/64bit cipher.
9768 *) Converted the lhash library to the crypto/mem.c functions.
9771 *) Added more recognized ASN.1 object ids.
9774 *) Added more RSA padding checks for SSL/TLS.
9777 *) Added BIO proxy/filter functionality.
9780 *) Added extra_certs to SSL_CTX which can be used
9781 send extra CA certificates to the client in the CA cert chain sending
9782 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9785 *) Now Fortezza is denied in the authentication phase because
9786 this is key exchange mechanism is not supported by SSLeay at all.
9789 *) Additional PKCS1 checks.
9792 *) Support the string "TLSv1" for all TLS v1 ciphers.
9795 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9796 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9799 *) Fixed a few memory leaks.
9802 *) Fixed various code and comment typos.
9805 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9806 bytes sent in the client random.
9807 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob