5 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
7 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
8 (removal of unnecessary code)
9 [Peter Sylvester <peter.sylvester@edelweb.fr>]
11 *) Add TLS key material exporter from RFC 5705.
14 *) Add DTLS-SRTP negotiation from RFC 5764.
17 *) Add Next Protocol Negotiation,
18 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
19 disabled with a no-npn flag to config or Configure. Code donated
21 [Adam Langley <agl@google.com> and Ben Laurie]
23 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
24 NIST-P256, NIST-P521, with constant-time single point multiplication on
25 typical inputs. Compiler support for the nonstandard type __uint128_t is
26 required to use this (present in gcc 4.4 and later, for 64-bit builds).
27 Code made available under Apache License version 2.0.
29 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
30 line to include this in your build of OpenSSL, and run "make depend" (or
31 "make update"). This enables the following EC_METHODs:
33 EC_GFp_nistp224_method()
34 EC_GFp_nistp256_method()
35 EC_GFp_nistp521_method()
37 EC_GROUP_new_by_curve_name() will automatically use these (while
38 EC_GROUP_new_curve_GFp() currently prefers the more flexible
40 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
42 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
43 all platforms. Move ssize_t definition from e_os.h to the public
44 header file e_os2.h as it now appears in public header file cms.h
47 *) New -sigopt option to the ca, req and x509 utilities. Additional
48 signature parameters can be passed using this option and in
52 *) Add RSA PSS signing function. This will generate and set the
53 appropriate AlgorithmIdentifiers for PSS based on those in the
54 corresponding EVP_MD_CTX structure. No application support yet.
57 *) Support for companion algorithm specific ASN1 signing routines.
58 New function ASN1_item_sign_ctx() signs a pre-initialised
59 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
60 the appropriate parameters.
63 *) Add new algorithm specific ASN1 verification initialisation function
64 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
65 handling will be the same no matter what EVP_PKEY_METHOD is used.
66 Add a PSS handler to support verification of PSS signatures: checked
67 against a number of sample certificates.
70 *) Add signature printing for PSS. Add PSS OIDs.
71 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
73 *) Add algorithm specific signature printing. An individual ASN1 method
74 can now print out signatures instead of the standard hex dump.
76 More complex signatures (e.g. PSS) can print out more meaningful
77 information. Include DSA version that prints out the signature
81 *) Password based recipient info support for CMS library: implementing
85 *) Split password based encryption into PBES2 and PBKDF2 functions. This
86 neatly separates the code into cipher and PBE sections and is required
87 for some algorithms that split PBES2 into separate pieces (such as
91 *) Session-handling fixes:
92 - Fix handling of connections that are resuming with a session ID,
93 but also support Session Tickets.
94 - Fix a bug that suppressed issuing of a new ticket if the client
95 presented a ticket with an expired session.
96 - Try to set the ticket lifetime hint to something reasonable.
97 - Make tickets shorter by excluding irrelevant information.
98 - On the client side, don't ignore renewed tickets.
99 [Adam Langley, Bodo Moeller (Google)]
101 *) Fix PSK session representation.
104 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
106 This work was sponsored by Intel.
109 *) Add GCM support to TLS library. Some custom code is needed to split
110 the IV between the fixed (from PRF) and explicit (from TLS record)
111 portions. This adds all GCM ciphersuites supported by RFC5288 and
112 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
113 add a special AESGCM string for GCM only.
116 *) Expand range of ctrls for AES GCM. Permit setting invocation
117 field on decrypt and retrieval of invocation field only on encrypt.
120 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
121 As required by RFC5289 these ciphersuites cannot be used if for
122 versions of TLS earlier than 1.2.
125 *) For FIPS capable OpenSSL interpret a NULL default public key method
126 as unset and return the appopriate default but do *not* set the default.
127 This means we can return the appopriate method in applications that
128 swicth between FIPS and non-FIPS modes.
131 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
132 ENGINE is used then we cannot handle that in the FIPS module so we
133 keep original code iff non-FIPS operations are allowed.
136 *) Add -attime option to openssl utilities.
137 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
139 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
142 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
143 FIPS EC methods unconditionally for now.
146 *) New build option no-ec2m to disable characteristic 2 code.
149 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
150 all cases can be covered as some introduce binary incompatibilities.
153 *) Redirect RSA operations to FIPS module including keygen,
154 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
157 *) Add similar low level API blocking to ciphers.
160 *) Low level digest APIs are not approved in FIPS mode: any attempt
161 to use these will cause a fatal error. Applications that *really* want
162 to use them can use the private_* version instead.
165 *) Redirect cipher operations to FIPS module for FIPS builds.
168 *) Redirect digest operations to FIPS module for FIPS builds.
171 *) Update build system to add "fips" flag which will link in fipscanister.o
172 for static and shared library builds embedding a signature if needed.
175 *) Output TLS supported curves in preference order instead of numerical
176 order. This is currently hardcoded for the highest order curves first.
177 This should be configurable so applications can judge speed vs strength.
180 *) Add TLS v1.2 server support for client authentication.
183 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
187 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
188 FIPS modules versions.
191 *) Add TLS v1.2 client side support for client authentication. Keep cache
192 of handshake records longer as we don't know the hash algorithm to use
193 until after the certificate request message is received.
196 *) Initial TLS v1.2 client support. Add a default signature algorithms
197 extension including all the algorithms we support. Parse new signature
198 format in client key exchange. Relax some ECC signing restrictions for
199 TLS v1.2 as indicated in RFC5246.
202 *) Add server support for TLS v1.2 signature algorithms extension. Switch
203 to new signature format when needed using client digest preference.
204 All server ciphersuites should now work correctly in TLS v1.2. No client
205 support yet and no support for client certificates.
208 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
209 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
210 ciphersuites. At present only RSA key exchange ciphersuites work with
211 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
212 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
213 and version checking.
216 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
217 with this defined it will not be affected by any changes to ssl internal
218 structures. Add several utility functions to allow openssl application
219 to work with OPENSSL_NO_SSL_INTERN defined.
223 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
225 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
228 *) Permit abbreviated handshakes when renegotiating using the function
229 SSL_renegotiate_abbreviated().
230 [Robin Seggelmann <seggelmann@fh-muenster.de>]
232 *) Add call to ENGINE_register_all_complete() to
233 ENGINE_load_builtin_engines(), so some implementations get used
234 automatically instead of needing explicit application support.
237 *) Add support for TLS key exporter as described in RFC5705.
238 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
240 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
241 a few changes are required:
243 Add SSL_OP_NO_TLSv1_1 flag.
245 Update version checking logic to handle version 1.1.
246 Add explicit IV handling (ported from DTLS code).
247 Add command line options to s_client/s_server.
250 Changes between 1.0.0e and 1.0.0f [xx XXX xxxx]
252 *) Fix ssl_ciph.c set-up race.
253 [Adam Langley (Google)]
255 *) Fix spurious failures in ecdsatest.c.
256 [Emilia Käsper (Google)]
258 *) Fix the BIO_f_buffer() implementation (which was mixing different
259 interpretations of the '..._len' fields).
260 [Adam Langley (Google)]
262 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
263 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
264 threads won't reuse the same blinding coefficients.
266 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
267 lock to call BN_BLINDING_invert_ex, and avoids one use of
268 BN_BLINDING_update for each BN_BLINDING structure (previously,
269 the last update always remained unused).
270 [Emilia Käsper (Google)]
272 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
273 [Bob Buckholz (Google)]
275 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
277 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
278 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
279 [Kaspar Brand <ossl@velox.ch>]
281 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
282 for multi-threaded use of ECDH. (CVE-2011-3210)
283 [Adam Langley (Google)]
285 *) Fix x509_name_ex_d2i memory leak on bad inputs.
288 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
289 signature public key algorithm by using OID xref utilities instead.
290 Before this you could only use some ECC ciphersuites with SHA1 only.
293 *) Add protection against ECDSA timing attacks as mentioned in the paper
294 by Billy Bob Brumley and Nicola Tuveri, see:
296 http://eprint.iacr.org/2011/232.pdf
298 [Billy Bob Brumley and Nicola Tuveri]
300 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
302 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
303 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
305 *) Fix bug in string printing code: if *any* escaping is enabled we must
306 escape the escape character (backslash) or the resulting string is
310 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
312 *) Disable code workaround for ancient and obsolete Netscape browsers
313 and servers: an attacker can use it in a ciphersuite downgrade attack.
314 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
317 *) Fixed J-PAKE implementation error, originally discovered by
318 Sebastien Martini, further info and confirmation from Stefan
319 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
322 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
324 *) Fix extension code to avoid race conditions which can result in a buffer
325 overrun vulnerability: resumed sessions must not be modified as they can
326 be shared by multiple threads. CVE-2010-3864
329 *) Fix WIN32 build system to correctly link an ENGINE directory into
333 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
335 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
337 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
339 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
341 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
342 context. The operation can be customised via the ctrl mechanism in
343 case ENGINEs want to include additional functionality.
346 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
349 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
350 output hashes compatible with older versions of OpenSSL.
351 [Willy Weisz <weisz@vcpc.univie.ac.at>]
353 *) Fix compression algorithm handling: if resuming a session use the
354 compression algorithm of the resumed session instead of determining
355 it from client hello again. Don't allow server to change algorithm.
358 *) Add load_crls() function to apps tidying load_certs() too. Add option
359 to verify utility to allow additional CRLs to be included.
362 *) Update OCSP request code to permit adding custom headers to the request:
363 some responders need this.
366 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
368 [Julia Lawall <julia@diku.dk>]
370 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
371 needlessly dereferenced structures, used obsolete functions and
372 didn't handle all updated verify codes correctly.
375 *) Disable MD2 in the default configuration.
378 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
379 indicate the initial BIO being pushed or popped. This makes it possible
380 to determine whether the BIO is the one explicitly called or as a result
381 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
382 it handles reference counts correctly and doesn't zero out the I/O bio
383 when it is not being explicitly popped. WARNING: applications which
384 included workarounds for the old buggy behaviour will need to be modified
385 or they could free up already freed BIOs.
388 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
389 renaming to all platforms (within the 0.9.8 branch, this was
390 done conditionally on Netware platforms to avoid a name clash).
391 [Guenter <lists@gknw.net>]
393 *) Add ECDHE and PSK support to DTLS.
394 [Michael Tuexen <tuexen@fh-muenster.de>]
396 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
400 *) Add "missing" function EVP_MD_flags() (without this the only way to
401 retrieve a digest flags is by accessing the structure directly. Update
402 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
403 or cipher is registered as in the "from" argument. Print out all
404 registered digests in the dgst usage message instead of manually
405 attempting to work them out.
408 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
409 this allows the use of compression and extensions. Change default cipher
410 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
411 by default unless an application cipher string requests it.
414 *) Alter match criteria in PKCS12_parse(). It used to try to use local
415 key ids to find matching certificates and keys but some PKCS#12 files
416 don't follow the (somewhat unwritten) rules and this strategy fails.
417 Now just gather all certificates together and the first private key
418 then look for the first certificate that matches the key.
421 *) Support use of registered digest and cipher names for dgst and cipher
422 commands instead of having to add each one as a special case. So now
429 openssl dgst -sha256 foo
431 and this works for ENGINE based algorithms too.
435 *) Update Gost ENGINE to support parameter files.
436 [Victor B. Wagner <vitus@cryptocom.ru>]
438 *) Support GeneralizedTime in ca utility.
439 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
441 *) Enhance the hash format used for certificate directory links. The new
442 form uses the canonical encoding (meaning equivalent names will work
443 even if they aren't identical) and uses SHA1 instead of MD5. This form
444 is incompatible with the older format and as a result c_rehash should
445 be used to rebuild symbolic links.
448 *) Make PKCS#8 the default write format for private keys, replacing the
449 traditional format. This form is standardised, more secure and doesn't
450 include an implicit MD5 dependency.
453 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
454 committed to OpenSSL should pass this lot as a minimum.
457 *) Add session ticket override functionality for use by EAP-FAST.
458 [Jouni Malinen <j@w1.fi>]
460 *) Modify HMAC functions to return a value. Since these can be implemented
461 in an ENGINE errors can occur.
464 *) Type-checked OBJ_bsearch_ex.
467 *) Type-checked OBJ_bsearch. Also some constification necessitated
468 by type-checking. Still to come: TXT_DB, bsearch(?),
469 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
473 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
474 seconds to a tm structure directly, instead of going through OS
475 specific date routines. This avoids any issues with OS routines such
476 as the year 2038 bug. New *_adj() functions for ASN1 time structures
477 and X509_time_adj_ex() to cover the extended range. The existing
478 X509_time_adj() is still usable and will no longer have any date issues.
481 *) Delta CRL support. New use deltas option which will attempt to locate
482 and search any appropriate delta CRLs available.
484 This work was sponsored by Google.
487 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
488 code and add additional score elements. Validate alternate CRL paths
489 as part of the CRL checking and indicate a new error "CRL path validation
490 error" in this case. Applications wanting additional details can use
491 the verify callback and check the new "parent" field. If this is not
492 NULL CRL path validation is taking place. Existing applications wont
493 see this because it requires extended CRL support which is off by
496 This work was sponsored by Google.
499 *) Support for freshest CRL extension.
501 This work was sponsored by Google.
504 *) Initial indirect CRL support. Currently only supported in the CRLs
505 passed directly and not via lookup. Process certificate issuer
506 CRL entry extension and lookup CRL entries by bother issuer name
507 and serial number. Check and process CRL issuer entry in IDP extension.
509 This work was sponsored by Google.
512 *) Add support for distinct certificate and CRL paths. The CRL issuer
513 certificate is validated separately in this case. Only enabled if
514 an extended CRL support flag is set: this flag will enable additional
515 CRL functionality in future.
517 This work was sponsored by Google.
520 *) Add support for policy mappings extension.
522 This work was sponsored by Google.
525 *) Fixes to pathlength constraint, self issued certificate handling,
526 policy processing to align with RFC3280 and PKITS tests.
528 This work was sponsored by Google.
531 *) Support for name constraints certificate extension. DN, email, DNS
532 and URI types are currently supported.
534 This work was sponsored by Google.
537 *) To cater for systems that provide a pointer-based thread ID rather
538 than numeric, deprecate the current numeric thread ID mechanism and
539 replace it with a structure and associated callback type. This
540 mechanism allows a numeric "hash" to be extracted from a thread ID in
541 either case, and on platforms where pointers are larger than 'long',
542 mixing is done to help ensure the numeric 'hash' is usable even if it
543 can't be guaranteed unique. The default mechanism is to use "&errno"
544 as a pointer-based thread ID to distinguish between threads.
546 Applications that want to provide their own thread IDs should now use
547 CRYPTO_THREADID_set_callback() to register a callback that will call
548 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
550 Note that ERR_remove_state() is now deprecated, because it is tied
551 to the assumption that thread IDs are numeric. ERR_remove_state(0)
552 to free the current thread's error state should be replaced by
553 ERR_remove_thread_state(NULL).
555 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
556 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
557 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
558 application was previously providing a numeric thread callback that
559 was inappropriate for distinguishing threads, then uniqueness might
560 have been obtained with &errno that happened immediately in the
561 intermediate development versions of OpenSSL; this is no longer the
562 case, the numeric thread callback will now override the automatic use
564 [Geoff Thorpe, with help from Bodo Moeller]
566 *) Initial support for different CRL issuing certificates. This covers a
567 simple case where the self issued certificates in the chain exist and
568 the real CRL issuer is higher in the existing chain.
570 This work was sponsored by Google.
573 *) Removed effectively defunct crypto/store from the build.
576 *) Revamp of STACK to provide stronger type-checking. Still to come:
577 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
578 ASN1_STRING, CONF_VALUE.
581 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
582 RAM on SSL connections. This option can save about 34k per idle SSL.
585 *) Revamp of LHASH to provide stronger type-checking. Still to come:
586 STACK, TXT_DB, bsearch, qsort.
589 *) Initial support for Cryptographic Message Syntax (aka CMS) based
590 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
591 support for data, signedData, compressedData, digestedData and
592 encryptedData, envelopedData types included. Scripts to check against
593 RFC4134 examples draft and interop and consistency checks of many
594 content types and variants.
597 *) Add options to enc utility to support use of zlib compression BIO.
600 *) Extend mk1mf to support importing of options and assembly language
601 files from Configure script, currently only included in VC-WIN32.
602 The assembly language rules can now optionally generate the source
603 files from the associated perl scripts.
606 *) Implement remaining functionality needed to support GOST ciphersuites.
607 Interop testing has been performed using CryptoPro implementations.
608 [Victor B. Wagner <vitus@cryptocom.ru>]
610 *) s390x assembler pack.
613 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
617 *) Implement Opaque PRF Input TLS extension as specified in
618 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
619 official specification yet and no extension type assignment by
620 IANA exists, this extension (for now) will have to be explicitly
621 enabled when building OpenSSL by providing the extension number
622 to use. For example, specify an option
624 -DTLSEXT_TYPE_opaque_prf_input=0x9527
626 to the "config" or "Configure" script to enable the extension,
627 assuming extension number 0x9527 (which is a completely arbitrary
628 and unofficial assignment based on the MD5 hash of the Internet
629 Draft). Note that by doing so, you potentially lose
630 interoperability with other TLS implementations since these might
631 be using the same extension number for other purposes.
633 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
634 opaque PRF input value to use in the handshake. This will create
635 an interal copy of the length-'len' string at 'src', and will
636 return non-zero for success.
638 To get more control and flexibility, provide a callback function
641 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
642 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
646 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
649 Callback function 'cb' will be called in handshakes, and is
650 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
651 Argument 'arg' is for application purposes (the value as given to
652 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
653 be provided to the callback function). The callback function
654 has to return non-zero to report success: usually 1 to use opaque
655 PRF input just if possible, or 2 to enforce use of the opaque PRF
656 input. In the latter case, the library will abort the handshake
657 if opaque PRF input is not successfully negotiated.
659 Arguments 'peerinput' and 'len' given to the callback function
660 will always be NULL and 0 in the case of a client. A server will
661 see the client's opaque PRF input through these variables if
662 available (NULL and 0 otherwise). Note that if the server
663 provides an opaque PRF input, the length must be the same as the
664 length of the client's opaque PRF input.
666 Note that the callback function will only be called when creating
667 a new session (session resumption can resume whatever was
668 previously negotiated), and will not be called in SSL 2.0
669 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
670 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
671 for applications that need to enforce opaque PRF input.
675 *) Update ssl code to support digests other than SHA1+MD5 for handshake
678 [Victor B. Wagner <vitus@cryptocom.ru>]
680 *) Add RFC4507 support to OpenSSL. This includes the corrections in
681 RFC4507bis. The encrypted ticket format is an encrypted encoded
682 SSL_SESSION structure, that way new session features are automatically
685 If a client application caches session in an SSL_SESSION structure
686 support is transparent because tickets are now stored in the encoded
689 The SSL_CTX structure automatically generates keys for ticket
690 protection in servers so again support should be possible
691 with no application modification.
693 If a client or server wishes to disable RFC4507 support then the option
694 SSL_OP_NO_TICKET can be set.
696 Add a TLS extension debugging callback to allow the contents of any client
697 or server extensions to be examined.
699 This work was sponsored by Google.
702 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
703 OpenSSL should now compile cleanly on gcc 4.2
704 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
706 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
707 support including streaming MAC support: this is required for GOST
709 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
711 *) Add option -stream to use PKCS#7 streaming in smime utility. New
712 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
713 to output in BER and PEM format.
716 *) Experimental support for use of HMAC via EVP_PKEY interface. This
717 allows HMAC to be handled via the EVP_DigestSign*() interface. The
718 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
719 ENGINE support for HMAC keys which are unextractable. New -mac and
720 -macopt options to dgst utility.
723 *) New option -sigopt to dgst utility. Update dgst to use
724 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
725 alternative signing paramaters such as X9.31 or PSS in the dgst
729 *) Change ssl_cipher_apply_rule(), the internal function that does
730 the work each time a ciphersuite string requests enabling
731 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
732 removing ("!foo+bar") a class of ciphersuites: Now it maintains
733 the order of disabled ciphersuites such that those ciphersuites
734 that most recently went from enabled to disabled not only stay
735 in order with respect to each other, but also have higher priority
736 than other disabled ciphersuites the next time ciphersuites are
739 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
740 the same ciphersuites as with "HIGH" alone, but in a specific
741 order where the PSK ciphersuites come first (since they are the
742 most recently disabled ciphersuites when "HIGH" is parsed).
744 Also, change ssl_create_cipher_list() (using this new
745 funcionality) such that between otherwise identical
746 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
750 *) Change ssl_create_cipher_list() so that it automatically
751 arranges the ciphersuites in reasonable order before starting
752 to process the rule string. Thus, the definition for "DEFAULT"
753 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
754 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
755 This makes it much easier to arrive at a reasonable default order
756 in applications for which anonymous ciphers are OK (meaning
757 that you can't actually use DEFAULT).
758 [Bodo Moeller; suggested by Victor Duchovni]
760 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
761 processing) into multiple integers instead of setting
762 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
763 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
764 (These masks as well as the individual bit definitions are hidden
765 away into the non-exported interface ssl/ssl_locl.h, so this
766 change to the definition of the SSL_CIPHER structure shouldn't
767 affect applications.) This give us more bits for each of these
768 categories, so there is no longer a need to coagulate AES128 and
769 AES256 into a single algorithm bit, and to coagulate Camellia128
770 and Camellia256 into a single algorithm bit, which has led to all
773 Thus, among other things, the kludge introduced in 0.9.7m and
774 0.9.8e for masking out AES256 independently of AES128 or masking
775 out Camellia256 independently of AES256 is not needed here in 0.9.9.
777 With the change, we also introduce new ciphersuite aliases that
778 so far were missing: "AES128", "AES256", "CAMELLIA128", and
782 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
783 Use the leftmost N bytes of the signature input if the input is
784 larger than the prime q (with N being the size in bytes of q).
787 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
788 it yet and it is largely untested.
791 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
794 *) Initial incomplete changes to avoid need for function casts in OpenSSL
795 some compilers (gcc 4.2 and later) reject their use. Safestack is
796 reimplemented. Update ASN1 to avoid use of legacy functions.
799 *) Win32/64 targets are linked with Winsock2.
802 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
803 to external functions. This can be used to increase CRL handling
804 efficiency especially when CRLs are very large by (for example) storing
805 the CRL revoked certificates in a database.
808 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
809 new CRLs added to a directory can be used. New command line option
810 -verify_return_error to s_client and s_server. This causes real errors
811 to be returned by the verify callback instead of carrying on no matter
812 what. This reflects the way a "real world" verify callback would behave.
815 *) GOST engine, supporting several GOST algorithms and public key formats.
816 Kindly donated by Cryptocom.
819 *) Partial support for Issuing Distribution Point CRL extension. CRLs
820 partitioned by DP are handled but no indirect CRL or reason partitioning
821 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
822 selected via a scoring technique which handles IDP and AKID in CRLs.
825 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
826 will ultimately be used for all verify operations: this will remove the
827 X509_STORE dependency on certificate verification and allow alternative
828 lookup methods. X509_STORE based implementations of these two callbacks.
831 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
832 Modify get_crl() to find a valid (unexpired) CRL if possible.
835 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
836 this would be called X509_CRL_cmp() but that name is already used by
837 a function that just compares CRL issuer names. Cache several CRL
838 extensions in X509_CRL structure and cache CRLDP in X509.
841 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
842 this maps equivalent X509_NAME structures into a consistent structure.
843 Name comparison can then be performed rapidly using memcmp().
846 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
850 *) Allow digests to supply their own micalg string for S/MIME type using
851 the ctrl EVP_MD_CTRL_MICALG.
854 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
855 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
856 ctrl. It can then customise the structure before and/or after signing
860 *) New function OBJ_add_sigid() to allow application defined signature OIDs
861 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
862 to free up any added signature OIDs.
865 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
866 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
867 digest and cipher tables. New options added to openssl utility:
868 list-message-digest-algorithms and list-cipher-algorithms.
871 *) Change the array representation of binary polynomials: the list
872 of degrees of non-zero coefficients is now terminated with -1.
873 Previously it was terminated with 0, which was also part of the
874 value; thus, the array representation was not applicable to
875 polynomials where t^0 has coefficient zero. This change makes
876 the array representation useful in a more general context.
879 *) Various modifications and fixes to SSL/TLS cipher string
880 handling. For ECC, the code now distinguishes between fixed ECDH
881 with RSA certificates on the one hand and with ECDSA certificates
882 on the other hand, since these are separate ciphersuites. The
883 unused code for Fortezza ciphersuites has been removed.
885 For consistency with EDH, ephemeral ECDH is now called "EECDH"
886 (not "ECDHE"). For consistency with the code for DH
887 certificates, use of ECDH certificates is now considered ECDH
888 authentication, not RSA or ECDSA authentication (the latter is
889 merely the CA's signing algorithm and not actively used in the
892 The temporary ciphersuite alias "ECCdraft" is no longer
893 available, and ECC ciphersuites are no longer excluded from "ALL"
894 and "DEFAULT". The following aliases now exist for RFC 4492
895 ciphersuites, most of these by analogy with the DH case:
897 kECDHr - ECDH cert, signed with RSA
898 kECDHe - ECDH cert, signed with ECDSA
899 kECDH - ECDH cert (signed with either RSA or ECDSA)
900 kEECDH - ephemeral ECDH
901 ECDH - ECDH cert or ephemeral ECDH
907 AECDH - anonymous ECDH
908 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
912 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
913 Use correct micalg parameters depending on digest(s) in signed message.
916 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
917 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
920 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
921 an engine to register a method. Add ENGINE lookups for methods and
922 functional reference processing.
925 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
926 EVP_{Sign,Verify}* which allow an application to customise the signature
930 *) New -resign option to smime utility. This adds one or more signers
931 to an existing PKCS#7 signedData structure. Also -md option to use an
932 alternative message digest algorithm for signing.
935 *) Tidy up PKCS#7 routines and add new functions to make it easier to
936 create PKCS7 structures containing multiple signers. Update smime
937 application to support multiple signers.
940 *) New -macalg option to pkcs12 utility to allow setting of an alternative
944 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
945 Reorganize PBE internals to lookup from a static table using NIDs,
946 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
947 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
948 PRF which will be automatically used with PBES2.
951 *) Replace the algorithm specific calls to generate keys in "req" with the
955 *) Update PKCS#7 enveloped data routines to use new API. This is now
956 supported by any public key method supporting the encrypt operation. A
957 ctrl is added to allow the public key algorithm to examine or modify
958 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
962 *) Add a ctrl to asn1 method to allow a public key algorithm to express
963 a default digest type to use. In most cases this will be SHA1 but some
964 algorithms (such as GOST) need to specify an alternative digest. The
965 return value indicates how strong the prefernce is 1 means optional and
966 2 is mandatory (that is it is the only supported type). Modify
967 ASN1_item_sign() to accept a NULL digest argument to indicate it should
968 use the default md. Update openssl utilities to use the default digest
969 type for signing if it is not explicitly indicated.
972 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
973 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
974 signing method from the key type. This effectively removes the link
975 between digests and public key types.
978 *) Add an OID cross reference table and utility functions. Its purpose is to
979 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
980 rsaEncryption. This will allow some of the algorithm specific hackery
981 needed to use the correct OID to be removed.
984 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
985 structures for PKCS7_sign(). They are now set up by the relevant public
989 *) Add provisional EC pkey method with support for ECDSA and ECDH.
992 *) Add support for key derivation (agreement) in the API, DH method and
996 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
997 public and private key formats. As a side effect these add additional
998 command line functionality not previously available: DSA signatures can be
999 generated and verified using pkeyutl and DH key support and generation in
1004 [Oliver Tappe <zooey@hirschkaefer.de>]
1006 *) New make target "install_html_docs" installs HTML renditions of the
1008 [Oliver Tappe <zooey@hirschkaefer.de>]
1010 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1011 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1012 support key and parameter generation and add initial key generation
1013 functionality for RSA.
1016 *) Add functions for main EVP_PKEY_method operations. The undocumented
1017 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1018 EVP_PKEY_{encrypt,decrypt}_old.
1021 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1022 key API, doesn't do much yet.
1025 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1026 public key algorithms. New option to openssl utility:
1027 "list-public-key-algorithms" to print out info.
1030 *) Implement the Supported Elliptic Curves Extension for
1031 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1034 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1035 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1038 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1039 utilities such as rsa, dsa, dsaparam etc except they process any key
1043 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1044 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1045 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1049 *) Initial support for pluggable public key ASN1.
1050 De-spaghettify the public key ASN1 handling. Move public and private
1051 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1052 algorithm specific handling to a single module within the relevant
1053 algorithm directory. Add functions to allow (near) opaque processing
1054 of public and private key structures.
1057 *) Implement the Supported Point Formats Extension for
1058 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1061 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1062 for the psk identity [hint] and the psk callback functions to the
1063 SSL_SESSION, SSL and SSL_CTX structure.
1066 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1070 SSL_CTX_use_psk_identity_hint
1071 SSL_get_psk_identity_hint
1072 SSL_get_psk_identity
1073 SSL_use_psk_identity_hint
1075 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1077 *) Add RFC 3161 compliant time stamp request creation, response generation
1078 and response verification functionality.
1079 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1081 *) Add initial support for TLS extensions, specifically for the server_name
1082 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1083 have new members for a host name. The SSL data structure has an
1084 additional member SSL_CTX *initial_ctx so that new sessions can be
1085 stored in that context to allow for session resumption, even after the
1086 SSL has been switched to a new SSL_CTX in reaction to a client's
1087 server_name extension.
1089 New functions (subject to change):
1091 SSL_get_servername()
1092 SSL_get_servername_type()
1095 New CTRL codes and macros (subject to change):
1097 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1098 - SSL_CTX_set_tlsext_servername_callback()
1099 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1100 - SSL_CTX_set_tlsext_servername_arg()
1101 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1103 openssl s_client has a new '-servername ...' option.
1105 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1106 '-key2 ...', '-servername_fatal' (subject to change). This allows
1107 testing the HostName extension for a specific single host name ('-cert'
1108 and '-key' remain fallbacks for handshakes without HostName
1109 negotiation). If the unrecogninzed_name alert has to be sent, this by
1110 default is a warning; it becomes fatal with the '-servername_fatal'
1113 [Peter Sylvester, Remy Allais, Christophe Renou]
1115 *) Whirlpool hash implementation is added.
1118 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1119 bn(64,32). Because of instruction set limitations it doesn't have
1120 any negative impact on performance. This was done mostly in order
1121 to make it possible to share assembler modules, such as bn_mul_mont
1122 implementations, between 32- and 64-bit builds without hassle.
1125 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1126 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1130 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1131 dedicated Montgomery multiplication procedure, is introduced.
1132 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1133 "64-bit" performance on certain 32-bit targets.
1136 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1137 in SSL structures. New SSL ctrl to set maximum send fragment size.
1138 Save memory by seeting the I/O buffer sizes dynamically instead of
1139 using the maximum available value.
1142 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1143 in addition to the text details.
1146 *) Very, very preliminary EXPERIMENTAL support for printing of general
1147 ASN1 structures. This currently produces rather ugly output and doesn't
1148 handle several customised structures at all.
1151 *) Integrated support for PVK file format and some related formats such
1152 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1153 these in the 'rsa' and 'dsa' utilities.
1156 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1159 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1160 place for the (very old) "NETSCAPE" format certificates which are now
1161 handled using new ASN1 code equivalents.
1164 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1165 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1166 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1169 *) Modify CRL distribution points extension code to print out previously
1170 unsupported fields. Enhance extension setting code to allow setting of
1174 *) Add print and set support for Issuing Distribution Point CRL extension.
1177 *) Change 'Configure' script to enable Camellia by default.
1180 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1182 *) Fix ssl_ciph.c set-up race.
1183 [Adam Langley (Google)]
1185 *) Fix spurious failures in ecdsatest.c.
1186 [Emilia Käsper (Google)]
1188 *) Fix the BIO_f_buffer() implementation (which was mixing different
1189 interpretations of the '..._len' fields).
1190 [Adam Langley (Google)]
1192 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1193 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1194 threads won't reuse the same blinding coefficients.
1196 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1197 lock to call BN_BLINDING_invert_ex, and avoids one use of
1198 BN_BLINDING_update for each BN_BLINDING structure (previously,
1199 the last update always remained unused).
1200 [Emilia Käsper (Google)]
1202 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1203 for multi-threaded use of ECDH.
1204 [Adam Langley (Google)]
1206 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1209 *) Add protection against ECDSA timing attacks as mentioned in the paper
1210 by Billy Bob Brumley and Nicola Tuveri, see:
1212 http://eprint.iacr.org/2011/232.pdf
1214 [Billy Bob Brumley and Nicola Tuveri]
1216 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1218 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1219 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1221 *) Fix bug in string printing code: if *any* escaping is enabled we must
1222 escape the escape character (backslash) or the resulting string is
1226 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1228 *) Disable code workaround for ancient and obsolete Netscape browsers
1229 and servers: an attacker can use it in a ciphersuite downgrade attack.
1230 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1233 *) Fixed J-PAKE implementation error, originally discovered by
1234 Sebastien Martini, further info and confirmation from Stefan
1235 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1238 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1240 *) Fix extension code to avoid race conditions which can result in a buffer
1241 overrun vulnerability: resumed sessions must not be modified as they can
1242 be shared by multiple threads. CVE-2010-3864
1245 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1248 *) Don't reencode certificate when calculating signature: cache and use
1249 the original encoding instead. This makes signature verification of
1250 some broken encodings work correctly.
1253 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1254 is also one of the inputs.
1255 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1257 *) Don't repeatedly append PBE algorithms to table if they already exist.
1258 Sort table on each new add. This effectively makes the table read only
1259 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1263 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1265 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1268 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1269 access or freeing data twice (CVE-2010-0742)
1270 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1272 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1273 common in certificates and some applications which only call
1274 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1278 Reduce copying into .apps and .test in makevms.com
1279 Don't try to use blank CA certificate in CA.com
1280 Allow use of C files from original directories in maketests.com
1281 [Steven M. Schweda" <sms@antinode.info>]
1283 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1285 *) When rejecting SSL/TLS records due to an incorrect version number, never
1286 update s->server with a new major version number. As of
1287 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1288 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1289 the previous behavior could result in a read attempt at NULL when
1290 receiving specific incorrect SSL/TLS records once record payload
1291 protection is active. (CVE-2010-0740)
1292 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1294 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1295 could be crashed if the relevant tables were not present (e.g. chrooted).
1296 [Tomas Hoger <thoger@redhat.com>]
1298 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1300 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1301 [Martin Olsson, Neel Mehta]
1303 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1304 accommodate for stack sorting, always a write lock!).
1307 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1308 excessive delays in the RAND_poll(): over a minute. As a workaround
1309 include a time check in the inner Heap32Next loop too.
1312 *) The code that handled flushing of data in SSL/TLS originally used the
1313 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1314 the problem outlined in PR#1949. The fix suggested there however can
1315 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1316 of Apache). So instead simplify the code to flush unconditionally.
1317 This should be fine since flushing with no data to flush is a no op.
1320 *) Handle TLS versions 2.0 and later properly and correctly use the
1321 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1322 off ancient servers have a habit of sticking around for a while...
1325 *) Modify compression code so it frees up structures without using the
1326 ex_data callbacks. This works around a problem where some applications
1327 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1328 restarting) then use compression (e.g. SSL with compression) later.
1329 This results in significant per-connection memory leaks and
1330 has caused some security issues including CVE-2008-1678 and
1334 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1335 change when encrypting or decrypting.
1338 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1339 connect and renegotiate with servers which do not support RI.
1340 Until RI is more widely deployed this option is enabled by default.
1343 *) Add "missing" ssl ctrls to clear options and mode.
1346 *) If client attempts to renegotiate and doesn't support RI respond with
1347 a no_renegotiation alert as required by RFC5746. Some renegotiating
1348 TLS clients will continue a connection gracefully when they receive
1349 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1350 waiting for a server hello which it will never receive. Now we treat a
1351 received no_renegotiation alert as a fatal error. This is because
1352 applications requesting a renegotiation might well expect it to succeed
1353 and would have no code in place to handle the server denying it so the
1354 only safe thing to do is to terminate the connection.
1357 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1358 peer supports secure renegotiation and 0 otherwise. Print out peer
1359 renegotiation support in s_client/s_server.
1362 *) Replace the highly broken and deprecated SPKAC certification method with
1363 the updated NID creation version. This should correctly handle UTF8.
1366 *) Implement RFC5746. Re-enable renegotiation but require the extension
1367 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1368 turns out to be a bad idea. It has been replaced by
1369 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1370 SSL_CTX_set_options(). This is really not recommended unless you
1371 know what you are doing.
1372 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1374 *) Fixes to stateless session resumption handling. Use initial_ctx when
1375 issuing and attempting to decrypt tickets in case it has changed during
1376 servername handling. Use a non-zero length session ID when attempting
1377 stateless session resumption: this makes it possible to determine if
1378 a resumption has occurred immediately after receiving server hello
1379 (several places in OpenSSL subtly assume this) instead of later in
1383 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1384 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1385 fixes for a few places where the return code is not checked
1387 [Julia Lawall <julia@diku.dk>]
1389 *) Add --strict-warnings option to Configure script to include devteam
1390 warnings in other configurations.
1393 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1394 makes it possible to install openssl libraries in locations which
1395 have names other than "lib", for example "/usr/lib64" which some
1397 [Steve Henson, based on patch from Jeremy Utley]
1399 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1400 X690 8.9.12 and can produce some misleading textual output of OIDs.
1401 [Steve Henson, reported by Dan Kaminsky]
1403 *) Delete MD2 from algorithm tables. This follows the recommendation in
1404 several standards that it is not used in new applications due to
1405 several cryptographic weaknesses. For binary compatibility reasons
1406 the MD2 API is still compiled in by default.
1409 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1413 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1414 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1416 [Guenter <lists@gknw.net>]
1418 *) Fix the server certificate chain building code to use X509_verify_cert(),
1419 it used to have an ad-hoc builder which was unable to cope with anything
1420 other than a simple chain.
1421 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1423 *) Don't check self signed certificate signatures in X509_verify_cert()
1424 by default (a flag can override this): it just wastes time without
1425 adding any security. As a useful side effect self signed root CAs
1426 with non-FIPS digests are now usable in FIPS mode.
1429 *) In dtls1_process_out_of_seq_message() the check if the current message
1430 is already buffered was missing. For every new message was memory
1431 allocated, allowing an attacker to perform an denial of service attack
1432 with sending out of seq handshake messages until there is no memory
1433 left. Additionally every future messege was buffered, even if the
1434 sequence number made no sense and would be part of another handshake.
1435 So only messages with sequence numbers less than 10 in advance will be
1436 buffered. (CVE-2009-1378)
1437 [Robin Seggelmann, discovered by Daniel Mentz]
1439 *) Records are buffered if they arrive with a future epoch to be
1440 processed after finishing the corresponding handshake. There is
1441 currently no limitation to this buffer allowing an attacker to perform
1442 a DOS attack with sending records with future epochs until there is no
1443 memory left. This patch adds the pqueue_size() function to detemine
1444 the size of a buffer and limits the record buffer to 100 entries.
1446 [Robin Seggelmann, discovered by Daniel Mentz]
1448 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1449 parent structure is freed. (CVE-2009-1379)
1452 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1453 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1456 [Ilya O. <vrghost@gmail.com>]
1458 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1460 *) Disable renegotiation completely - this fixes a severe security
1461 problem (CVE-2009-3555) at the cost of breaking all
1462 renegotiation. Renegotiation can be re-enabled by setting
1463 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1464 run-time. This is really not recommended unless you know what
1468 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1470 *) Don't set val to NULL when freeing up structures, it is freed up by
1471 underlying code. If sizeof(void *) > sizeof(long) this can result in
1472 zeroing past the valid field. (CVE-2009-0789)
1473 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1475 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1476 checked correctly. This would allow some invalid signed attributes to
1477 appear to verify correctly. (CVE-2009-0591)
1478 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1480 *) Reject UniversalString and BMPString types with invalid lengths. This
1481 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1482 a legal length. (CVE-2009-0590)
1485 *) Set S/MIME signing as the default purpose rather than setting it
1486 unconditionally. This allows applications to override it at the store
1490 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1491 to handle some structures.
1494 *) Improve efficiency of mem_gets: don't search whole buffer each time
1496 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1498 *) New -hex option for openssl rand.
1501 *) Print out UTF8String and NumericString when parsing ASN1.
1504 *) Support NumericString type for name components.
1507 *) Allow CC in the environment to override the automatically chosen
1508 compiler. Note that nothing is done to ensure flags work with the
1512 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1514 *) Properly check EVP_VerifyFinal() and similar return values
1516 [Ben Laurie, Bodo Moeller, Google Security Team]
1518 *) Enable TLS extensions by default.
1521 *) Allow the CHIL engine to be loaded, whether the application is
1522 multithreaded or not. (This does not release the developer from the
1523 obligation to set up the dynamic locking callbacks.)
1524 [Sander Temme <sander@temme.net>]
1526 *) Use correct exit code if there is an error in dgst command.
1527 [Steve Henson; problem pointed out by Roland Dirlewanger]
1529 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1530 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1533 *) Add experimental JPAKE support, including demo authentication in
1534 s_client and s_server.
1537 *) Set the comparison function in v3_addr_canonize().
1538 [Rob Austein <sra@hactrn.net>]
1540 *) Add support for XMPP STARTTLS in s_client.
1541 [Philip Paeps <philip@freebsd.org>]
1543 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1544 to ensure that even with this option, only ciphersuites in the
1545 server's preference list will be accepted. (Note that the option
1546 applies only when resuming a session, so the earlier behavior was
1547 just about the algorithm choice for symmetric cryptography.)
1550 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1552 *) Fix NULL pointer dereference if a DTLS server received
1553 ChangeCipherSpec as first record (CVE-2009-1386).
1556 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1557 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1560 *) The fix in 0.9.8c that supposedly got rid of unsafe
1561 double-checked locking was incomplete for RSA blinding,
1562 addressing just one layer of what turns out to have been
1563 doubly unsafe triple-checked locking.
1565 So now fix this for real by retiring the MONT_HELPER macro
1566 in crypto/rsa/rsa_eay.c.
1568 [Bodo Moeller; problem pointed out by Marius Schilder]
1570 *) Various precautionary measures:
1572 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1574 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1575 (NB: This would require knowledge of the secret session ticket key
1576 to exploit, in which case you'd be SOL either way.)
1578 - Change bn_nist.c so that it will properly handle input BIGNUMs
1579 outside the expected range.
1581 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1584 [Neel Mehta, Bodo Moeller]
1586 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1587 the load fails. Useful for distros.
1588 [Ben Laurie and the FreeBSD team]
1590 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1593 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1596 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1598 This work was sponsored by Logica.
1601 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1602 keystores. Support for SSL/TLS client authentication too.
1603 Not compiled unless enable-capieng specified to Configure.
1605 This work was sponsored by Logica.
1608 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1609 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1610 attribute creation routines such as certifcate requests and PKCS#12
1614 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1616 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1617 handshake which could lead to a cilent crash as found using the
1618 Codenomicon TLS test suite (CVE-2008-1672)
1619 [Steve Henson, Mark Cox]
1621 *) Fix double free in TLS server name extensions which could lead to
1622 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1625 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1627 Clear the error queue to ensure that error entries left from
1628 older function calls do not interfere with the correct operation.
1629 [Lutz Jaenicke, Erik de Castro Lopo]
1631 *) Remove root CA certificates of commercial CAs:
1633 The OpenSSL project does not recommend any specific CA and does not
1634 have any policy with respect to including or excluding any CA.
1635 Therefore it does not make any sense to ship an arbitrary selection
1636 of root CA certificates with the OpenSSL software.
1639 *) RSA OAEP patches to fix two separate invalid memory reads.
1640 The first one involves inputs when 'lzero' is greater than
1641 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1642 before the beginning of from). The second one involves inputs where
1643 the 'db' section contains nothing but zeroes (there is a one-byte
1644 invalid read after the end of 'db').
1645 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1647 *) Partial backport from 0.9.9-dev:
1649 Introduce bn_mul_mont (dedicated Montgomery multiplication
1650 procedure) as a candidate for BIGNUM assembler implementation.
1651 While 0.9.9-dev uses assembler for various architectures, only
1652 x86_64 is available by default here in the 0.9.8 branch, and
1653 32-bit x86 is available through a compile-time setting.
1655 To try the 32-bit x86 assembler implementation, use Configure
1656 option "enable-montasm" (which exists only for this backport).
1658 As "enable-montasm" for 32-bit x86 disclaims code stability
1659 anyway, in this constellation we activate additional code
1660 backported from 0.9.9-dev for further performance improvements,
1661 namely BN_from_montgomery_word. (To enable this otherwise,
1662 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1664 [Andy Polyakov (backport partially by Bodo Moeller)]
1666 *) Add TLS session ticket callback. This allows an application to set
1667 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1668 values. This is useful for key rollover for example where several key
1669 sets may exist with different names.
1672 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1673 This was broken until now in 0.9.8 releases, such that the only way
1674 a registered ENGINE could be used (assuming it initialises
1675 successfully on the host) was to explicitly set it as the default
1676 for the relevant algorithms. This is in contradiction with 0.9.7
1677 behaviour and the documentation. With this fix, when an ENGINE is
1678 registered into a given algorithm's table of implementations, the
1679 'uptodate' flag is reset so that auto-discovery will be used next
1680 time a new context for that algorithm attempts to select an
1682 [Ian Lister (tweaked by Geoff Thorpe)]
1684 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1685 implemention in the following ways:
1687 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1690 Lack of BER streaming support means one pass streaming processing is
1691 only supported if data is detached: setting the streaming flag is
1692 ignored for embedded content.
1694 CMS support is disabled by default and must be explicitly enabled
1695 with the enable-cms configuration option.
1698 *) Update the GMP engine glue to do direct copies between BIGNUM and
1699 mpz_t when openssl and GMP use the same limb size. Otherwise the
1700 existing "conversion via a text string export" trick is still used.
1701 [Paul Sheer <paulsheer@gmail.com>]
1703 *) Zlib compression BIO. This is a filter BIO which compressed and
1704 uncompresses any data passed through it.
1707 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1708 RFC3394 compatible AES key wrapping.
1711 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1712 sets string data without copying. X509_ALGOR_set0() and
1713 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1714 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1715 from an X509_ATTRIBUTE structure optionally checking it occurs only
1716 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1720 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1721 to get the expected BN_FLG_CONSTTIME behavior.
1722 [Bodo Moeller (Google)]
1726 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1727 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1728 - added some more tests to do_tests.pl
1729 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1730 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1731 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1732 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1733 - various changes to netware.pl to enable gcc-cross builds on Win32
1735 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1736 - various changes to fix missing prototype warnings
1737 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1738 - added AES, WHIRLPOOL and CPUID assembler code to build files
1739 - added missing AES assembler make rules to mk1mf.pl
1740 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1741 [Guenter Knauf <eflash@gmx.net>]
1743 *) Implement certificate status request TLS extension defined in RFC3546.
1744 A client can set the appropriate parameters and receive the encoded
1745 OCSP response via a callback. A server can query the supplied parameters
1746 and set the encoded OCSP response in the callback. Add simplified examples
1747 to s_client and s_server.
1750 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1752 *) Fix various bugs:
1753 + Binary incompatibility of ssl_ctx_st structure
1754 + DTLS interoperation with non-compliant servers
1755 + Don't call get_session_cb() without proposed session
1756 + Fix ia64 assembler code
1757 [Andy Polyakov, Steve Henson]
1759 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1761 *) DTLS Handshake overhaul. There were longstanding issues with
1762 OpenSSL DTLS implementation, which were making it impossible for
1763 RFC 4347 compliant client to communicate with OpenSSL server.
1764 Unfortunately just fixing these incompatibilities would "cut off"
1765 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1766 server keeps tolerating non RFC compliant syntax. The opposite is
1767 not true, 0.9.8f client can not communicate with earlier server.
1768 This update even addresses CVE-2007-4995.
1771 *) Changes to avoid need for function casts in OpenSSL: some compilers
1772 (gcc 4.2 and later) reject their use.
1773 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1776 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1777 RFC4507bis. The encrypted ticket format is an encrypted encoded
1778 SSL_SESSION structure, that way new session features are automatically
1781 If a client application caches session in an SSL_SESSION structure
1782 support is transparent because tickets are now stored in the encoded
1785 The SSL_CTX structure automatically generates keys for ticket
1786 protection in servers so again support should be possible
1787 with no application modification.
1789 If a client or server wishes to disable RFC4507 support then the option
1790 SSL_OP_NO_TICKET can be set.
1792 Add a TLS extension debugging callback to allow the contents of any client
1793 or server extensions to be examined.
1795 This work was sponsored by Google.
1798 *) Add initial support for TLS extensions, specifically for the server_name
1799 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1800 have new members for a host name. The SSL data structure has an
1801 additional member SSL_CTX *initial_ctx so that new sessions can be
1802 stored in that context to allow for session resumption, even after the
1803 SSL has been switched to a new SSL_CTX in reaction to a client's
1804 server_name extension.
1806 New functions (subject to change):
1808 SSL_get_servername()
1809 SSL_get_servername_type()
1812 New CTRL codes and macros (subject to change):
1814 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1815 - SSL_CTX_set_tlsext_servername_callback()
1816 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1817 - SSL_CTX_set_tlsext_servername_arg()
1818 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1820 openssl s_client has a new '-servername ...' option.
1822 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1823 '-key2 ...', '-servername_fatal' (subject to change). This allows
1824 testing the HostName extension for a specific single host name ('-cert'
1825 and '-key' remain fallbacks for handshakes without HostName
1826 negotiation). If the unrecogninzed_name alert has to be sent, this by
1827 default is a warning; it becomes fatal with the '-servername_fatal'
1830 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1832 *) Add AES and SSE2 assembly language support to VC++ build.
1835 *) Mitigate attack on final subtraction in Montgomery reduction.
1838 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1839 (which previously caused an internal error).
1842 *) Squeeze another 10% out of IGE mode when in != out.
1845 *) AES IGE mode speedup.
1846 [Dean Gaudet (Google)]
1848 *) Add the Korean symmetric 128-bit cipher SEED (see
1849 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1850 add SEED ciphersuites from RFC 4162:
1852 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1853 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1854 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1855 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1857 To minimize changes between patchlevels in the OpenSSL 0.9.8
1858 series, SEED remains excluded from compilation unless OpenSSL
1859 is configured with 'enable-seed'.
1860 [KISA, Bodo Moeller]
1862 *) Mitigate branch prediction attacks, which can be practical if a
1863 single processor is shared, allowing a spy process to extract
1864 information. For detailed background information, see
1865 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1866 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1867 and Necessary Software Countermeasures"). The core of the change
1868 are new versions BN_div_no_branch() and
1869 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1870 respectively, which are slower, but avoid the security-relevant
1871 conditional branches. These are automatically called by BN_div()
1872 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1873 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1874 remove a conditional branch.
1876 BN_FLG_CONSTTIME is the new name for the previous
1877 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1878 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1879 in the exponent causes BN_mod_exp_mont() to use the alternative
1880 implementation in BN_mod_exp_mont_consttime().) The old name
1881 remains as a deprecated alias.
1883 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1884 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1885 constant-time implementations for more than just exponentiation.
1886 Here too the old name is kept as a deprecated alias.
1888 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1889 the BN_BLINDING structure gets an independent copy of the
1890 modulus. This means that the previous "BIGNUM *m" argument to
1891 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1892 essentially becomes "const BIGNUM *m", although we can't actually
1893 change this in the header file before 0.9.9. It allows
1894 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1895 enable BN_FLG_CONSTTIME.
1897 [Matthew D Wood (Intel Corp)]
1899 *) In the SSL/TLS server implementation, be strict about session ID
1900 context matching (which matters if an application uses a single
1901 external cache for different purposes). Previously,
1902 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1903 set. This did ensure strict client verification, but meant that,
1904 with applications using a single external cache for quite
1905 different requirements, clients could circumvent ciphersuite
1906 restrictions for a given session ID context by starting a session
1907 in a different context.
1910 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1911 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1912 authentication-only ciphersuites.
1915 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1916 not complete and could lead to a possible single byte overflow
1917 (CVE-2007-5135) [Ben Laurie]
1919 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1921 *) Since AES128 and AES256 (and similarly Camellia128 and
1922 Camellia256) share a single mask bit in the logic of
1923 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1924 kludge to work properly if AES128 is available and AES256 isn't
1925 (or if Camellia128 is available and Camellia256 isn't).
1928 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1929 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1930 When a point or a seed is encoded in a BIT STRING, we need to
1931 prevent the removal of trailing zero bits to get the proper DER
1932 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1933 of a NamedBitList, for which trailing 0 bits need to be removed.)
1936 *) Have SSL/TLS server implementation tolerate "mismatched" record
1937 protocol version while receiving ClientHello even if the
1938 ClientHello is fragmented. (The server can't insist on the
1939 particular protocol version it has chosen before the ServerHello
1940 message has informed the client about his choice.)
1943 *) Add RFC 3779 support.
1944 [Rob Austein for ARIN, Ben Laurie]
1946 *) Load error codes if they are not already present instead of using a
1947 static variable. This allows them to be cleanly unloaded and reloaded.
1948 Improve header file function name parsing.
1951 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1952 or CAPABILITY handshake as required by RFCs.
1955 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1957 *) Introduce limits to prevent malicious keys being able to
1958 cause a denial of service. (CVE-2006-2940)
1959 [Steve Henson, Bodo Moeller]
1961 *) Fix ASN.1 parsing of certain invalid structures that can result
1962 in a denial of service. (CVE-2006-2937) [Steve Henson]
1964 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1965 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1967 *) Fix SSL client code which could crash if connecting to a
1968 malicious SSLv2 server. (CVE-2006-4343)
1969 [Tavis Ormandy and Will Drewry, Google Security Team]
1971 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1972 match only those. Before that, "AES256-SHA" would be interpreted
1973 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1974 the same strength classification in 0.9.7h) as we currently only
1975 have a single AES bit in the ciphersuite description bitmap.
1976 That change, however, also applied to ciphersuite strings such as
1977 "RC4-MD5" that intentionally matched multiple ciphersuites --
1978 namely, SSL 2.0 ciphersuites in addition to the more common ones
1979 from SSL 3.0/TLS 1.0.
1981 So we change the selection algorithm again: Naming an explicit
1982 ciphersuite selects this one ciphersuite, and any other similar
1983 ciphersuite (same bitmap) from *other* protocol versions.
1984 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1985 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1987 Since SSL 2.0 does not have any ciphersuites for which the
1988 128/256 bit distinction would be relevant, this works for now.
1989 The proper fix will be to use different bits for AES128 and
1990 AES256, which would have avoided the problems from the beginning;
1991 however, bits are scarce, so we can only do this in a new release
1992 (not just a patchlevel) when we can change the SSL_CIPHER
1993 definition to split the single 'unsigned long mask' bitmap into
1994 multiple values to extend the available space.
1998 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2000 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2001 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2003 *) Add AES IGE and biIGE modes.
2006 *) Change the Unix randomness entropy gathering to use poll() when
2007 possible instead of select(), since the latter has some
2008 undesirable limitations.
2009 [Darryl Miles via Richard Levitte and Bodo Moeller]
2011 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2012 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2013 cannot be implicitly activated as part of, e.g., the "AES" alias.
2014 However, please upgrade to OpenSSL 0.9.9[-dev] for
2015 non-experimental use of the ECC ciphersuites to get TLS extension
2016 support, which is required for curve and point format negotiation
2017 to avoid potential handshake problems.
2020 *) Disable rogue ciphersuites:
2022 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2023 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2024 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2026 The latter two were purportedly from
2027 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2030 Also deactivate the remaining ciphersuites from
2031 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2032 unofficial, and the ID has long expired.
2035 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2036 dual-core machines) and other potential thread-safety issues.
2039 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2040 versions), which is now available for royalty-free use
2041 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2042 Also, add Camellia TLS ciphersuites from RFC 4132.
2044 To minimize changes between patchlevels in the OpenSSL 0.9.8
2045 series, Camellia remains excluded from compilation unless OpenSSL
2046 is configured with 'enable-camellia'.
2049 *) Disable the padding bug check when compression is in use. The padding
2050 bug check assumes the first packet is of even length, this is not
2051 necessarily true if compresssion is enabled and can result in false
2052 positives causing handshake failure. The actual bug test is ancient
2053 code so it is hoped that implementations will either have fixed it by
2054 now or any which still have the bug do not support compression.
2057 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2059 *) When applying a cipher rule check to see if string match is an explicit
2060 cipher suite and only match that one cipher suite if it is.
2063 *) Link in manifests for VC++ if needed.
2064 [Austin Ziegler <halostatue@gmail.com>]
2066 *) Update support for ECC-based TLS ciphersuites according to
2067 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2068 TLS extensions, which are supported starting with the 0.9.9
2069 branch, not in the OpenSSL 0.9.8 branch).
2072 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2073 opaque EVP_CIPHER_CTX handling.
2076 *) Fixes and enhancements to zlib compression code. We now only use
2077 "zlib1.dll" and use the default __cdecl calling convention on Win32
2078 to conform with the standards mentioned here:
2079 http://www.zlib.net/DLL_FAQ.txt
2080 Static zlib linking now works on Windows and the new --with-zlib-include
2081 --with-zlib-lib options to Configure can be used to supply the location
2082 of the headers and library. Gracefully handle case where zlib library
2086 *) Several fixes and enhancements to the OID generation code. The old code
2087 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2088 handle numbers larger than ULONG_MAX, truncated printing and had a
2089 non standard OBJ_obj2txt() behaviour.
2092 *) Add support for building of engines under engine/ as shared libraries
2093 under VC++ build system.
2096 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2097 Hopefully, we will not see any false combination of paths any more.
2100 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2102 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2103 (part of SSL_OP_ALL). This option used to disable the
2104 countermeasure against man-in-the-middle protocol-version
2105 rollback in the SSL 2.0 server implementation, which is a bad
2106 idea. (CVE-2005-2969)
2108 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2109 for Information Security, National Institute of Advanced Industrial
2110 Science and Technology [AIST], Japan)]
2112 *) Add two function to clear and return the verify parameter flags.
2115 *) Keep cipherlists sorted in the source instead of sorting them at
2116 runtime, thus removing the need for a lock.
2119 *) Avoid some small subgroup attacks in Diffie-Hellman.
2120 [Nick Mathewson and Ben Laurie]
2122 *) Add functions for well-known primes.
2125 *) Extended Windows CE support.
2126 [Satoshi Nakamura and Andy Polyakov]
2128 *) Initialize SSL_METHOD structures at compile time instead of during
2129 runtime, thus removing the need for a lock.
2132 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2133 attempting to decrypt each encrypted key in turn. Add support to
2137 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2139 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2142 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2145 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2146 key into the same file any more.
2149 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2152 *) Add -utf8 command line and config file option to 'ca'.
2153 [Stefan <stf@udoma.org]
2155 *) Removed the macro des_crypt(), as it seems to conflict with some
2156 libraries. Use DES_crypt().
2159 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2160 involves renaming the source and generated shared-libs for
2161 both. The engines will accept the corrected or legacy ids
2162 ('ncipher' and '4758_cca' respectively) when binding. NB,
2163 this only applies when building 'shared'.
2164 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2166 *) Add attribute functions to EVP_PKEY structure. Modify
2167 PKCS12_create() to recognize a CSP name attribute and
2168 use it. Make -CSP option work again in pkcs12 utility.
2171 *) Add new functionality to the bn blinding code:
2172 - automatic re-creation of the BN_BLINDING parameters after
2173 a fixed number of uses (currently 32)
2174 - add new function for parameter creation
2175 - introduce flags to control the update behaviour of the
2176 BN_BLINDING parameters
2177 - hide BN_BLINDING structure
2178 Add a second BN_BLINDING slot to the RSA structure to improve
2179 performance when a single RSA object is shared among several
2183 *) Add support for DTLS.
2184 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2186 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2187 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2190 *) Remove buggy and incompletet DH cert support from
2191 ssl/ssl_rsa.c and ssl/s3_both.c
2194 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2195 the apps/openssl applications.
2198 *) Compile clean with "-Wall -Wmissing-prototypes
2199 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2200 DEBUG_SAFESTACK must also be set.
2203 *) Change ./Configure so that certain algorithms can be disabled by default.
2204 The new counterpiece to "no-xxx" is "enable-xxx".
2206 The patented RC5 and MDC2 algorithms will now be disabled unless
2207 "enable-rc5" and "enable-mdc2", respectively, are specified.
2209 (IDEA remains enabled despite being patented. This is because IDEA
2210 is frequently required for interoperability, and there is no license
2211 fee for non-commercial use. As before, "no-idea" can be used to
2212 avoid this algorithm.)
2216 *) Add processing of proxy certificates (see RFC 3820). This work was
2217 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2218 EGEE (Enabling Grids for E-science in Europe).
2221 *) RC4 performance overhaul on modern architectures/implementations, such
2222 as Intel P4, IA-64 and AMD64.
2225 *) New utility extract-section.pl. This can be used specify an alternative
2226 section number in a pod file instead of having to treat each file as
2227 a separate case in Makefile. This can be done by adding two lines to the
2230 =for comment openssl_section:XXX
2232 The blank line is mandatory.
2236 *) New arguments -certform, -keyform and -pass for s_client and s_server
2237 to allow alternative format key and certificate files and passphrase
2241 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2242 update associated structures and add various utility functions.
2244 Add new policy related verify parameters, include policy checking in
2245 standard verify code. Enhance 'smime' application with extra parameters
2246 to support policy checking and print out.
2249 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2250 Nehemiah processors. These extensions support AES encryption in hardware
2251 as well as RNG (though RNG support is currently disabled).
2252 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2254 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2257 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2258 [Andy Polyakov and a number of other people]
2260 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2261 implementation contributed by IBM.
2262 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2264 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2265 exponent rather than 'unsigned long'. There is a corresponding change to
2266 the new 'rsa_keygen' element of the RSA_METHOD structure.
2267 [Jelte Jansen, Geoff Thorpe]
2269 *) Functionality for creating the initial serial number file is now
2270 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2272 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2273 number file to 1, which is bound to cause problems. To avoid
2274 the problems while respecting compatibility between different 0.9.7
2275 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2276 CA.pl for serial number initialization. With the new release 0.9.8,
2277 we can fix the problem directly in the 'ca' utility.)
2280 *) Reduced header interdepencies by declaring more opaque objects in
2281 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2282 give fewer recursive includes, which could break lazy source code - so
2283 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2284 developers should define this symbol when building and using openssl to
2285 ensure they track the recommended behaviour, interfaces, [etc], but
2286 backwards-compatible behaviour prevails when this isn't defined.
2289 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2292 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2293 This will generate a random key of the appropriate length based on the
2294 cipher context. The EVP_CIPHER can provide its own random key generation
2295 routine to support keys of a specific form. This is used in the des and
2296 3des routines to generate a key of the correct parity. Update S/MIME
2297 code to use new functions and hence generate correct parity DES keys.
2298 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2299 valid (weak or incorrect parity).
2302 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2303 as looking them up. This is useful when the verified structure may contain
2304 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2305 present unless the new PKCS7_NO_CRL flag is asserted.
2308 *) Extend ASN1 oid configuration module. It now additionally accepts the
2311 shortName = some long name, 1.2.3.4
2314 *) Reimplemented the BN_CTX implementation. There is now no more static
2315 limitation on the number of variables it can handle nor the depth of the
2316 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2317 information can now expand as required, and rather than having a single
2318 static array of bignums, BN_CTX now uses a linked-list of such arrays
2319 allowing it to expand on demand whilst maintaining the usefulness of
2320 BN_CTX's "bundling".
2323 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2324 to allow all RSA operations to function using a single BN_CTX.
2327 *) Preliminary support for certificate policy evaluation and checking. This
2328 is initially intended to pass the tests outlined in "Conformance Testing
2329 of Relying Party Client Certificate Path Processing Logic" v1.07.
2332 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2333 remained unused and not that useful. A variety of other little bignum
2334 tweaks and fixes have also been made continuing on from the audit (see
2338 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2339 associated ASN1, EVP and SSL functions and old ASN1 macros.
2342 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2343 and this should never fail. So the return value from the use of
2344 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2345 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2348 *) BN_CTX_get() should return zero-valued bignums, providing the same
2349 initialised value as BN_new().
2350 [Geoff Thorpe, suggested by Ulf Möller]
2352 *) Support for inhibitAnyPolicy certificate extension.
2355 *) An audit of the BIGNUM code is underway, for which debugging code is
2356 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2357 is considered valid when processing BIGNUMs, and causes execution to
2358 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2359 further steps are taken to deliberately pollute unused data in BIGNUM
2360 structures to try and expose faulty code further on. For now, openssl will
2361 (in its default mode of operation) continue to tolerate the inconsistent
2362 forms that it has tolerated in the past, but authors and packagers should
2363 consider trying openssl and their own applications when compiled with
2364 these debugging symbols defined. It will help highlight potential bugs in
2365 their own code, and will improve the test coverage for OpenSSL itself. At
2366 some point, these tighter rules will become openssl's default to improve
2367 maintainability, though the assert()s and other overheads will remain only
2368 in debugging configurations. See bn.h for more details.
2369 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2371 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2372 that can only be obtained through BN_CTX_new() (which implicitly
2373 initialises it). The presence of this function only made it possible
2374 to overwrite an existing structure (and cause memory leaks).
2377 *) Because of the callback-based approach for implementing LHASH as a
2378 template type, lh_insert() adds opaque objects to hash-tables and
2379 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2380 to clean up those corresponding objects before destroying the hash table
2381 (and losing the object pointers). So some over-zealous constifications in
2382 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2383 objects as "const" and the lh_doall[_arg] callback wrappers are not
2384 prototyped to have "const" restrictions on the object pointers they are
2385 given (and so aren't required to cast them away any more).
2388 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2389 (speed) prefers to use its own implementation. The two implementations
2390 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2391 its object type properly exposed (MS_TM) instead of casting to/from "char
2392 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2393 aren't necessarily the greatest nomenclatures - but this is what was used
2394 internally to the implementation so I've used that for now.
2397 *) Ensure that deprecated functions do not get compiled when
2398 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2399 the self-tests were still using deprecated key-generation functions so
2400 these have been updated also.
2403 *) Reorganise PKCS#7 code to separate the digest location functionality
2404 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2405 New function PKCS7_set_digest() to set the digest type for PKCS#7
2406 digestedData type. Add additional code to correctly generate the
2407 digestedData type and add support for this type in PKCS7 initialization
2411 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2412 structure of type "other".
2415 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2416 sure the loop does correctly stop and breaking ("division by zero")
2417 modulus operations are not performed. The (pre-generated) prime
2418 table crypto/bn/bn_prime.h was already correct, but it could not be
2419 re-generated on some platforms because of the "division by zero"
2420 situation in the script.
2421 [Ralf S. Engelschall]
2423 *) Update support for ECC-based TLS ciphersuites according to
2424 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2425 SHA-1 now is only used for "small" curves (where the
2426 representation of a field element takes up to 24 bytes); for
2427 larger curves, the field element resulting from ECDH is directly
2428 used as premaster secret.
2429 [Douglas Stebila (Sun Microsystems Laboratories)]
2431 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2432 curve secp160r1 to the tests.
2433 [Douglas Stebila (Sun Microsystems Laboratories)]
2435 *) Add the possibility to load symbols globally with DSO.
2436 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2438 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2439 control of the error stack.
2442 *) Add support for STORE in ENGINE.
2445 *) Add the STORE type. The intention is to provide a common interface
2446 to certificate and key stores, be they simple file-based stores, or
2447 HSM-type store, or LDAP stores, or...
2448 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2451 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2452 pass a list of arguments to any function as well as provide a way
2453 for a function to pass data back to the caller.
2456 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2457 works like BUF_strdup() but can be used to duplicate a portion of
2458 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2462 *) Add the function sk_find_ex() which works like sk_find(), but will
2463 return an index to an element even if an exact match couldn't be
2464 found. The index is guaranteed to point at the element where the
2465 searched-for key would be inserted to preserve sorting order.
2468 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2469 takes an extra flags argument for optional functionality. Currently,
2470 the following flags are defined:
2472 OBJ_BSEARCH_VALUE_ON_NOMATCH
2473 This one gets OBJ_bsearch_ex() to return a pointer to the first
2474 element where the comparing function returns a negative or zero
2477 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2478 This one gets OBJ_bsearch_ex() to return a pointer to the first
2479 element where the comparing function returns zero. This is useful
2480 if there are more than one element where the comparing function
2484 *) Make it possible to create self-signed certificates with 'openssl ca'
2485 in such a way that the self-signed certificate becomes part of the
2486 CA database and uses the same mechanisms for serial number generation
2487 as all other certificate signing. The new flag '-selfsign' enables
2488 this functionality. Adapt CA.sh and CA.pl.in.
2491 *) Add functionality to check the public key of a certificate request
2492 against a given private. This is useful to check that a certificate
2493 request can be signed by that key (self-signing).
2496 *) Make it possible to have multiple active certificates with the same
2497 subject in the CA index file. This is done only if the keyword
2498 'unique_subject' is set to 'no' in the main CA section (default
2499 if 'CA_default') of the configuration file. The value is saved
2500 with the database itself in a separate index attribute file,
2501 named like the index file with '.attr' appended to the name.
2504 *) Generate muti valued AVAs using '+' notation in config files for
2508 *) Support for nameConstraints certificate extension.
2511 *) Support for policyConstraints certificate extension.
2514 *) Support for policyMappings certificate extension.
2517 *) Make sure the default DSA_METHOD implementation only uses its
2518 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2519 and change its own handlers to be NULL so as to remove unnecessary
2520 indirection. This lets alternative implementations fallback to the
2521 default implementation more easily.
2524 *) Support for directoryName in GeneralName related extensions
2528 *) Make it possible to link applications using Makefile.shared.
2529 Make that possible even when linking against static libraries!
2532 *) Support for single pass processing for S/MIME signing. This now
2533 means that S/MIME signing can be done from a pipe, in addition
2534 cleartext signing (multipart/signed type) is effectively streaming
2535 and the signed data does not need to be all held in memory.
2537 This is done with a new flag PKCS7_STREAM. When this flag is set
2538 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2539 is done after the data is output (and digests calculated) in
2540 SMIME_write_PKCS7().
2543 *) Add full support for -rpath/-R, both in shared libraries and
2544 applications, at least on the platforms where it's known how
2548 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2549 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2550 will now compute a table of multiples of the generator that
2551 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2552 faster (notably in the case of a single point multiplication,
2553 scalar * generator).
2554 [Nils Larsch, Bodo Moeller]
2556 *) IPv6 support for certificate extensions. The various extensions
2557 which use the IP:a.b.c.d can now take IPv6 addresses using the
2558 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2562 *) Added an ENGINE that implements RSA by performing private key
2563 exponentiations with the GMP library. The conversions to and from
2564 GMP's mpz_t format aren't optimised nor are any montgomery forms
2565 cached, and on x86 it appears OpenSSL's own performance has caught up.
2566 However there are likely to be other architectures where GMP could
2567 provide a boost. This ENGINE is not built in by default, but it can be
2568 specified at Configure time and should be accompanied by the necessary
2569 linker additions, eg;
2570 ./config -DOPENSSL_USE_GMP -lgmp
2573 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2574 testing availability of engines with "-t" - the old behaviour is
2575 produced by increasing the feature's verbosity with "-tt".
2578 *) ECDSA routines: under certain error conditions uninitialized BN objects
2579 could be freed. Solution: make sure initialization is performed early
2580 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2584 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2585 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2586 software implementations. For DSA and DH, parameter generation can
2587 also be overriden by providing the appropriate method callbacks.
2590 *) Change the "progress" mechanism used in key-generation and
2591 primality testing to functions that take a new BN_GENCB pointer in
2592 place of callback/argument pairs. The new API functions have "_ex"
2593 postfixes and the older functions are reimplemented as wrappers for
2594 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2595 declarations of the old functions to help (graceful) attempts to
2596 migrate to the new functions. Also, the new key-generation API
2597 functions operate on a caller-supplied key-structure and return
2598 success/failure rather than returning a key or NULL - this is to
2599 help make "keygen" another member function of RSA_METHOD etc.
2601 Example for using the new callback interface:
2603 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2607 BN_GENCB_set(&my_cb, my_callback, my_arg);
2609 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2610 /* For the meaning of a, b in calls to my_callback(), see the
2611 * documentation of the function that calls the callback.
2612 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2613 * my_callback should return 1 if it wants BN_is_prime_ex()
2614 * to continue, or 0 to stop.
2619 *) Change the ZLIB compression method to be stateful, and make it
2620 available to TLS with the number defined in
2621 draft-ietf-tls-compression-04.txt.
2624 *) Add the ASN.1 structures and functions for CertificatePair, which
2625 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2627 CertificatePair ::= SEQUENCE {
2628 forward [0] Certificate OPTIONAL,
2629 reverse [1] Certificate OPTIONAL,
2630 -- at least one of the pair shall be present -- }
2632 Also implement the PEM functions to read and write certificate
2633 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2635 This needed to be defined, mostly for the sake of the LDAP
2636 attribute crossCertificatePair, but may prove useful elsewhere as
2640 *) Make it possible to inhibit symlinking of shared libraries in
2641 Makefile.shared, for Cygwin's sake.
2644 *) Extend the BIGNUM API by creating a function
2645 void BN_set_negative(BIGNUM *a, int neg);
2646 and a macro that behave like
2647 int BN_is_negative(const BIGNUM *a);
2649 to avoid the need to access 'a->neg' directly in applications.
2652 *) Implement fast modular reduction for pseudo-Mersenne primes
2653 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2654 EC_GROUP_new_curve_GFp() will now automatically use this
2656 [Nils Larsch <nla@trustcenter.de>]
2658 *) Add new lock type (CRYPTO_LOCK_BN).
2661 *) Change the ENGINE framework to automatically load engines
2662 dynamically from specific directories unless they could be
2663 found to already be built in or loaded. Move all the
2664 current engines except for the cryptodev one to a new
2666 The engines in engines/ are built as shared libraries if
2667 the "shared" options was given to ./Configure or ./config.
2668 Otherwise, they are inserted in libcrypto.a.
2669 /usr/local/ssl/engines is the default directory for dynamic
2670 engines, but that can be overriden at configure time through
2671 the usual use of --prefix and/or --openssldir, and at run
2672 time with the environment variable OPENSSL_ENGINES.
2673 [Geoff Thorpe and Richard Levitte]
2675 *) Add Makefile.shared, a helper makefile to build shared
2676 libraries. Addapt Makefile.org.
2679 *) Add version info to Win32 DLLs.
2680 [Peter 'Luna' Runestig" <peter@runestig.com>]
2682 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2683 can be added using this API to created arbitrary PKCS#12
2684 files while avoiding the low level API.
2686 New options to PKCS12_create(), key or cert can be NULL and
2687 will then be omitted from the output file. The encryption
2688 algorithm NIDs can be set to -1 for no encryption, the mac
2689 iteration count can be set to 0 to omit the mac.
2691 Enhance pkcs12 utility by making the -nokeys and -nocerts
2692 options work when creating a PKCS#12 file. New option -nomac
2693 to omit the mac, NONE can be set for an encryption algorithm.
2694 New code is modified to use the enhanced PKCS12_create()
2695 instead of the low level API.
2698 *) Extend ASN1 encoder to support indefinite length constructed
2699 encoding. This can output sequences tags and octet strings in
2700 this form. Modify pk7_asn1.c to support indefinite length
2701 encoding. This is experimental and needs additional code to
2702 be useful, such as an ASN1 bio and some enhanced streaming
2705 Extend template encode functionality so that tagging is passed
2706 down to the template encoder.
2709 *) Let 'openssl req' fail if an argument to '-newkey' is not
2710 recognized instead of using RSA as a default.
2713 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2714 As these are not official, they are not included in "ALL";
2715 the "ECCdraft" ciphersuite group alias can be used to select them.
2716 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2718 *) Add ECDH engine support.
2719 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2721 *) Add ECDH in new directory crypto/ecdh/.
2722 [Douglas Stebila (Sun Microsystems Laboratories)]
2724 *) Let BN_rand_range() abort with an error after 100 iterations
2725 without success (which indicates a broken PRNG).
2728 *) Change BN_mod_sqrt() so that it verifies that the input value
2729 is really the square of the return value. (Previously,
2730 BN_mod_sqrt would show GIGO behaviour.)
2733 *) Add named elliptic curves over binary fields from X9.62, SECG,
2734 and WAP/WTLS; add OIDs that were still missing.
2736 [Sheueling Chang Shantz and Douglas Stebila
2737 (Sun Microsystems Laboratories)]
2739 *) Extend the EC library for elliptic curves over binary fields
2740 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2743 EC_GF2m_simple_method
2747 EC_GROUP_new_curve_GF2m
2748 EC_GROUP_set_curve_GF2m
2749 EC_GROUP_get_curve_GF2m
2750 EC_POINT_set_affine_coordinates_GF2m
2751 EC_POINT_get_affine_coordinates_GF2m
2752 EC_POINT_set_compressed_coordinates_GF2m
2754 Point compression for binary fields is disabled by default for
2755 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2758 As binary polynomials are represented as BIGNUMs, various members
2759 of the EC_GROUP and EC_POINT data structures can be shared
2760 between the implementations for prime fields and binary fields;
2761 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2762 are essentially identical to their ..._GFp counterparts.
2763 (For simplicity, the '..._GFp' prefix has been dropped from
2764 various internal method names.)
2766 An internal 'field_div' method (similar to 'field_mul' and
2767 'field_sqr') has been added; this is used only for binary fields.
2769 [Sheueling Chang Shantz and Douglas Stebila
2770 (Sun Microsystems Laboratories)]
2772 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2773 through methods ('mul', 'precompute_mult').
2775 The generic implementations (now internally called 'ec_wNAF_mul'
2776 and 'ec_wNAF_precomputed_mult') remain the default if these
2777 methods are undefined.
2779 [Sheueling Chang Shantz and Douglas Stebila
2780 (Sun Microsystems Laboratories)]
2782 *) New function EC_GROUP_get_degree, which is defined through
2783 EC_METHOD. For curves over prime fields, this returns the bit
2784 length of the modulus.
2786 [Sheueling Chang Shantz and Douglas Stebila
2787 (Sun Microsystems Laboratories)]
2789 *) New functions EC_GROUP_dup, EC_POINT_dup.
2790 (These simply call ..._new and ..._copy).
2792 [Sheueling Chang Shantz and Douglas Stebila
2793 (Sun Microsystems Laboratories)]
2795 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2796 Polynomials are represented as BIGNUMs (where the sign bit is not
2797 used) in the following functions [macros]:
2800 BN_GF2m_sub [= BN_GF2m_add]
2801 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2802 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2803 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2805 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2806 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2807 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2808 BN_GF2m_cmp [= BN_ucmp]
2810 (Note that only the 'mod' functions are actually for fields GF(2^m).
2811 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2813 For some functions, an the irreducible polynomial defining a
2814 field can be given as an 'unsigned int[]' with strictly
2815 decreasing elements giving the indices of those bits that are set;
2816 i.e., p[] represents the polynomial
2817 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2819 p[0] > p[1] > ... > p[k] = 0.
2820 This applies to the following functions:
2825 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2826 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2828 BN_GF2m_mod_sqrt_arr
2829 BN_GF2m_mod_solve_quad_arr
2833 Conversion can be performed by the following functions:
2838 bntest.c has additional tests for binary polynomial arithmetic.
2840 Two implementations for BN_GF2m_mod_div() are available.
2841 The default algorithm simply uses BN_GF2m_mod_inv() and
2842 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2843 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2844 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2846 [Sheueling Chang Shantz and Douglas Stebila
2847 (Sun Microsystems Laboratories)]
2849 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2850 functionality is disabled at compile-time.
2851 [Douglas Stebila <douglas.stebila@sun.com>]
2853 *) Change default behaviour of 'openssl asn1parse' so that more
2854 information is visible when viewing, e.g., a certificate:
2856 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2857 mode the content of non-printable OCTET STRINGs is output in a
2858 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2859 avoid the appearance of a printable string.
2860 [Nils Larsch <nla@trustcenter.de>]
2862 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2864 EC_GROUP_set_asn1_flag()
2865 EC_GROUP_get_asn1_flag()
2866 EC_GROUP_set_point_conversion_form()
2867 EC_GROUP_get_point_conversion_form()
2868 These control ASN1 encoding details:
2869 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2870 has been set to OPENSSL_EC_NAMED_CURVE.
2871 - Points are encoded in uncompressed form by default; options for
2872 asn1_for are as for point2oct, namely
2873 POINT_CONVERSION_COMPRESSED
2874 POINT_CONVERSION_UNCOMPRESSED
2875 POINT_CONVERSION_HYBRID
2877 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2880 EC_GROUP_get0_seed()
2881 EC_GROUP_get_seed_len()
2882 This is used only for ASN1 purposes (so far).
2883 [Nils Larsch <nla@trustcenter.de>]
2885 *) Add 'field_type' member to EC_METHOD, which holds the NID
2886 of the appropriate field type OID. The new function
2887 EC_METHOD_get_field_type() returns this value.
2888 [Nils Larsch <nla@trustcenter.de>]
2893 EC_POINT_point2hex()
2894 EC_POINT_hex2point()
2895 providing useful interfaces to EC_POINT_point2oct() and
2896 EC_POINT_oct2point().
2897 [Nils Larsch <nla@trustcenter.de>]
2899 *) Change internals of the EC library so that the functions
2900 EC_GROUP_set_generator()
2901 EC_GROUP_get_generator()
2902 EC_GROUP_get_order()
2903 EC_GROUP_get_cofactor()
2904 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2905 to methods, which would lead to unnecessary code duplication when
2906 adding different types of curves.
2907 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2909 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2910 arithmetic, and such that modified wNAFs are generated
2911 (which avoid length expansion in many cases).
2914 *) Add a function EC_GROUP_check_discriminant() (defined via
2915 EC_METHOD) that verifies that the curve discriminant is non-zero.
2917 Add a function EC_GROUP_check() that makes some sanity tests
2918 on a EC_GROUP, its generator and order. This includes
2919 EC_GROUP_check_discriminant().
2920 [Nils Larsch <nla@trustcenter.de>]
2922 *) Add ECDSA in new directory crypto/ecdsa/.
2924 Add applications 'openssl ecparam' and 'openssl ecdsa'
2925 (these are based on 'openssl dsaparam' and 'openssl dsa').
2927 ECDSA support is also included in various other files across the
2928 library. Most notably,
2929 - 'openssl req' now has a '-newkey ecdsa:file' option;
2930 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2931 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2932 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2933 them suitable for ECDSA where domain parameters must be
2934 extracted before the specific public key;
2935 - ECDSA engine support has been added.
2936 [Nils Larsch <nla@trustcenter.de>]
2938 *) Include some named elliptic curves, and add OIDs from X9.62,
2939 SECG, and WAP/WTLS. Each curve can be obtained from the new
2941 EC_GROUP_new_by_curve_name(),
2942 and the list of available named curves can be obtained with
2943 EC_get_builtin_curves().
2944 Also add a 'curve_name' member to EC_GROUP objects, which can be
2946 EC_GROUP_set_curve_name()
2947 EC_GROUP_get_curve_name()
2948 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2950 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2951 was actually never needed) and in BN_mul(). The removal in BN_mul()
2952 required a small change in bn_mul_part_recursive() and the addition
2953 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2954 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2955 bn_sub_words() and bn_add_words() except they take arrays with
2959 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2961 *) Cleanse PEM buffers before freeing them since they may contain
2963 [Benjamin Bennett <ben@psc.edu>]
2965 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2966 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2967 authentication-only ciphersuites.
2970 *) Since AES128 and AES256 share a single mask bit in the logic of
2971 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2972 kludge to work properly if AES128 is available and AES256 isn't.
2975 *) Expand security boundary to match 1.1.1 module.
2978 *) Remove redundant features: hash file source, editing of test vectors
2979 modify fipsld to use external fips_premain.c signature.
2982 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2983 run algorithm test programs.
2986 *) Make algorithm test programs more tolerant of whitespace.
2989 *) Have SSL/TLS server implementation tolerate "mismatched" record
2990 protocol version while receiving ClientHello even if the
2991 ClientHello is fragmented. (The server can't insist on the
2992 particular protocol version it has chosen before the ServerHello
2993 message has informed the client about his choice.)
2996 *) Load error codes if they are not already present instead of using a
2997 static variable. This allows them to be cleanly unloaded and reloaded.
3000 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3002 *) Introduce limits to prevent malicious keys being able to
3003 cause a denial of service. (CVE-2006-2940)
3004 [Steve Henson, Bodo Moeller]
3006 *) Fix ASN.1 parsing of certain invalid structures that can result
3007 in a denial of service. (CVE-2006-2937) [Steve Henson]
3009 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3010 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3012 *) Fix SSL client code which could crash if connecting to a
3013 malicious SSLv2 server. (CVE-2006-4343)
3014 [Tavis Ormandy and Will Drewry, Google Security Team]
3016 *) Change ciphersuite string processing so that an explicit
3017 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3018 will no longer include "AES128-SHA"), and any other similar
3019 ciphersuite (same bitmap) from *other* protocol versions (so that
3020 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3021 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3022 changes from 0.9.8b and 0.9.8d.
3025 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3027 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3028 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3030 *) Change the Unix randomness entropy gathering to use poll() when
3031 possible instead of select(), since the latter has some
3032 undesirable limitations.
3033 [Darryl Miles via Richard Levitte and Bodo Moeller]
3035 *) Disable rogue ciphersuites:
3037 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3038 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3039 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3041 The latter two were purportedly from
3042 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3045 Also deactive the remaining ciphersuites from
3046 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3047 unofficial, and the ID has long expired.
3050 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3051 dual-core machines) and other potential thread-safety issues.
3054 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3056 *) Adapt fipsld and the build system to link against the validated FIPS
3057 module in FIPS mode.
3060 *) Fixes for VC++ 2005 build under Windows.
3063 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3064 from a Windows bash shell such as MSYS. It is autodetected from the
3065 "config" script when run from a VC++ environment. Modify standard VC++
3066 build to use fipscanister.o from the GNU make build.
3069 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3071 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3072 The value now differs depending on if you build for FIPS or not.
3073 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3074 safely run with a non-FIPSed libcrypto, as it may crash because of
3075 the difference induced by this change.
3078 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3080 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3081 (part of SSL_OP_ALL). This option used to disable the
3082 countermeasure against man-in-the-middle protocol-version
3083 rollback in the SSL 2.0 server implementation, which is a bad
3084 idea. (CVE-2005-2969)
3086 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3087 for Information Security, National Institute of Advanced Industrial
3088 Science and Technology [AIST], Japan)]
3090 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3091 mainly for FIPS compliance and not fully integrated at this stage.
3094 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3095 the exponentiation using a fixed-length exponent. (Otherwise,
3096 the information leaked through timing could expose the secret key
3097 after many signatures; cf. Bleichenbacher's attack on DSA with
3101 *) Make a new fixed-window mod_exp implementation the default for
3102 RSA, DSA, and DH private-key operations so that the sequence of
3103 squares and multiplies and the memory access pattern are
3104 independent of the particular secret key. This will mitigate
3105 cache-timing and potential related attacks.
3107 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3108 and this is automatically used by BN_mod_exp_mont() if the new flag
3109 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3110 will use this BN flag for private exponents unless the flag
3111 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3112 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3114 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3116 *) Change the client implementation for SSLv23_method() and
3117 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3118 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3119 (Previously, the SSL 2.0 backwards compatible Client Hello
3120 message format would be used even with SSL_OP_NO_SSLv2.)
3123 *) Add support for smime-type MIME parameter in S/MIME messages which some
3127 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3128 a threadsafe manner. Modify rsa code to use new function and add calls
3129 to dsa and dh code (which had race conditions before).
3132 *) Include the fixed error library code in the C error file definitions
3133 instead of fixing them up at runtime. This keeps the error code
3134 structures constant.
3137 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3139 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3142 *) Fixes for newer kerberos headers. NB: the casts are needed because
3143 the 'length' field is signed on one version and unsigned on another
3144 with no (?) obvious way to tell the difference, without these VC++
3145 complains. Also the "definition" of FAR (blank) is no longer included
3146 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3147 some needed definitions.
3150 *) Undo Cygwin change.
3153 *) Added support for proxy certificates according to RFC 3820.
3154 Because they may be a security thread to unaware applications,
3155 they must be explicitely allowed in run-time. See
3156 docs/HOWTO/proxy_certificates.txt for further information.
3159 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3161 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3162 server and client random values. Previously
3163 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3164 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3166 This change has negligible security impact because:
3168 1. Server and client random values still have 24 bytes of pseudo random
3171 2. Server and client random values are sent in the clear in the initial
3174 3. The master secret is derived using the premaster secret (48 bytes in
3175 size for static RSA ciphersuites) as well as client server and random
3178 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3181 [Stephen Henson, reported by UK NISCC]
3183 *) Use Windows randomness collection on Cygwin.
3186 *) Fix hang in EGD/PRNGD query when communication socket is closed
3187 prematurely by EGD/PRNGD.
3188 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3190 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3193 *) Back-port of selected performance improvements from development
3194 branch, as well as improved support for PowerPC platforms.
3197 *) Add lots of checks for memory allocation failure, error codes to indicate
3198 failure and freeing up memory if a failure occurs.
3199 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3201 *) Add new -passin argument to dgst.
3204 *) Perform some character comparisons of different types in X509_NAME_cmp:
3205 this is needed for some certificates that reencode DNs into UTF8Strings
3206 (in violation of RFC3280) and can't or wont issue name rollover
3210 *) Make an explicit check during certificate validation to see that
3211 the CA setting in each certificate on the chain is correct. As a
3212 side effect always do the following basic checks on extensions,
3213 not just when there's an associated purpose to the check:
3215 - if there is an unhandled critical extension (unless the user
3216 has chosen to ignore this fault)
3217 - if the path length has been exceeded (if one is set at all)
3218 - that certain extensions fit the associated purpose (if one has
3222 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3224 *) Avoid a race condition when CRLs are checked in a multi threaded
3225 environment. This would happen due to the reordering of the revoked
3226 entries during signature checking and serial number lookup. Now the
3227 encoding is cached and the serial number sort performed under a lock.
3228 Add new STACK function sk_is_sorted().
3231 *) Add Delta CRL to the extension code.
3234 *) Various fixes to s3_pkt.c so alerts are sent properly.
3235 [David Holmes <d.holmes@f5.com>]
3237 *) Reduce the chances of duplicate issuer name and serial numbers (in
3238 violation of RFC3280) using the OpenSSL certificate creation utilities.
3239 This is done by creating a random 64 bit value for the initial serial
3240 number when a serial number file is created or when a self signed
3241 certificate is created using 'openssl req -x509'. The initial serial
3242 number file is created using 'openssl x509 -next_serial' in CA.pl
3243 rather than being initialized to 1.
3246 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3248 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3249 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3250 [Joe Orton, Steve Henson]
3252 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3254 [Joe Orton, Steve Henson]
3256 *) Make it possible to have multiple active certificates with the same
3257 subject in the CA index file. This is done only if the keyword
3258 'unique_subject' is set to 'no' in the main CA section (default
3259 if 'CA_default') of the configuration file. The value is saved
3260 with the database itself in a separate index attribute file,
3261 named like the index file with '.attr' appended to the name.
3264 *) X509 verify fixes. Disable broken certificate workarounds when
3265 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3266 keyUsage extension present. Don't accept CRLs with unhandled critical
3267 extensions: since verify currently doesn't process CRL extensions this
3268 rejects a CRL with *any* critical extensions. Add new verify error codes
3272 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3273 A clarification of RFC2560 will require the use of OCTET STRINGs and
3274 some implementations cannot handle the current raw format. Since OpenSSL
3275 copies and compares OCSP nonces as opaque blobs without any attempt at
3276 parsing them this should not create any compatibility issues.
3279 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3280 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3281 this HMAC (and other) operations are several times slower than OpenSSL
3285 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3286 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3288 *) Use the correct content when signing type "other".
3291 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3293 *) Fix various bugs revealed by running the NISCC test suite:
3295 Stop out of bounds reads in the ASN1 code when presented with
3296 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3298 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3300 If verify callback ignores invalid public key errors don't try to check
3301 certificate signature with the NULL public key.
3305 *) New -ignore_err option in ocsp application to stop the server
3306 exiting on the first error in a request.
3309 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3310 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3314 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3315 extra data after the compression methods not only for TLS 1.0
3316 but also for SSL 3.0 (as required by the specification).
3317 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3319 *) Change X509_certificate_type() to mark the key as exported/exportable
3320 when it's 512 *bits* long, not 512 bytes.
3323 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3324 blocks during encryption.
3327 *) Various fixes to base64 BIO and non blocking I/O. On write
3328 flushes were not handled properly if the BIO retried. On read
3329 data was not being buffered properly and had various logic bugs.
3330 This also affects blocking I/O when the data being decoded is a
3334 *) Various S/MIME bugfixes and compatibility changes:
3335 output correct application/pkcs7 MIME type if
3336 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3337 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3338 of files as .eml work). Correctly handle very long lines in MIME
3342 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3344 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3345 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3346 a protocol version number mismatch like a decryption error
3347 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3350 *) Turn on RSA blinding by default in the default implementation
3351 to avoid a timing attack. Applications that don't want it can call
3352 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3353 They would be ill-advised to do so in most cases.
3354 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3356 *) Change RSA blinding code so that it works when the PRNG is not
3357 seeded (in this case, the secret RSA exponent is abused as
3358 an unpredictable seed -- if it is not unpredictable, there
3359 is no point in blinding anyway). Make RSA blinding thread-safe
3360 by remembering the creator's thread ID in rsa->blinding and
3361 having all other threads use local one-time blinding factors
3362 (this requires more computation than sharing rsa->blinding, but
3363 avoids excessive locking; and if an RSA object is not shared
3364 between threads, blinding will still be very fast).
3367 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3368 ENGINE as defaults for all supported algorithms irrespective of
3369 the 'flags' parameter. 'flags' is now honoured, so applications
3370 should make sure they are passing it correctly.
3373 *) Target "mingw" now allows native Windows code to be generated in
3374 the Cygwin environment as well as with the MinGW compiler.
3377 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3379 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3380 via timing by performing a MAC computation even if incorrrect
3381 block cipher padding has been found. This is a countermeasure
3382 against active attacks where the attacker has to distinguish
3383 between bad padding and a MAC verification error. (CVE-2003-0078)
3385 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3386 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3387 Martin Vuagnoux (EPFL, Ilion)]
3389 *) Make the no-err option work as intended. The intention with no-err
3390 is not to have the whole error stack handling routines removed from
3391 libcrypto, it's only intended to remove all the function name and
3392 reason texts, thereby removing some of the footprint that may not
3393 be interesting if those errors aren't displayed anyway.
3395 NOTE: it's still possible for any application or module to have it's
3396 own set of error texts inserted. The routines are there, just not
3397 used by default when no-err is given.
3400 *) Add support for FreeBSD on IA64.
3401 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3403 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3404 Kerberos function mit_des_cbc_cksum(). Before this change,
3405 the value returned by DES_cbc_cksum() was like the one from
3406 mit_des_cbc_cksum(), except the bytes were swapped.
3407 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3409 *) Allow an application to disable the automatic SSL chain building.
3410 Before this a rather primitive chain build was always performed in
3411 ssl3_output_cert_chain(): an application had no way to send the
3412 correct chain if the automatic operation produced an incorrect result.
3414 Now the chain builder is disabled if either:
3416 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3418 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3420 The reasoning behind this is that an application would not want the
3421 auto chain building to take place if extra chain certificates are
3422 present and it might also want a means of sending no additional
3423 certificates (for example the chain has two certificates and the
3427 *) Add the possibility to build without the ENGINE framework.
3428 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3430 *) Under Win32 gmtime() can return NULL: check return value in
3431 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3434 *) DSA routines: under certain error conditions uninitialized BN objects
3435 could be freed. Solution: make sure initialization is performed early
3436 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3437 Nils Larsch <nla@trustcenter.de> via PR#459)
3440 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3441 checked on reconnect on the client side, therefore session resumption
3442 could still fail with a "ssl session id is different" error. This
3443 behaviour is masked when SSL_OP_ALL is used due to
3444 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3445 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3446 followup to PR #377.
3449 *) IA-32 assembler support enhancements: unified ELF targets, support
3450 for SCO/Caldera platforms, fix for Cygwin shared build.
3453 *) Add support for FreeBSD on sparc64. As a consequence, support for
3454 FreeBSD on non-x86 processors is separate from x86 processors on
3455 the config script, much like the NetBSD support.
3456 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3458 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3460 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3463 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3464 code (06) was taken as the first octet of the session ID and the last
3465 octet was ignored consequently. As a result SSLv2 client side session
3466 caching could not have worked due to the session ID mismatch between
3468 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3472 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3473 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3477 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3478 seems that in spite of existing for more than a year, many application
3479 author have done nothing to provide the necessary callbacks, which
3480 means that this particular engine will not work properly anywhere.
3481 This is a very unfortunate situation which forces us, in the name
3482 of usability, to give the hw_ncipher.c a static lock, which is part
3484 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3485 appear in 0.9.8 or later. We EXPECT application authors to have
3486 dealt properly with this when 0.9.8 is released (unless we actually
3487 make such changes in the libcrypto locking code that changes will
3488 have to be made anyway).
3491 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3492 octets have been read, EOF or an error occurs. Without this change
3493 some truncated ASN1 structures will not produce an error.
3496 *) Disable Heimdal support, since it hasn't been fully implemented.
3497 Still give the possibility to force the use of Heimdal, but with
3498 warnings and a request that patches get sent to openssl-dev.
3501 *) Add the VC-CE target, introduce the WINCE sysname, and add
3502 INSTALL.WCE and appropriate conditionals to make it build.
3503 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3505 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3506 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3507 edit numbers of the version.
3508 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3510 *) Introduce safe string copy and catenation functions
3511 (BUF_strlcpy() and BUF_strlcat()).
3512 [Ben Laurie (CHATS) and Richard Levitte]
3514 *) Avoid using fixed-size buffers for one-line DNs.
3515 [Ben Laurie (CHATS)]
3517 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3518 resizing buffers containing secrets, and use where appropriate.
3519 [Ben Laurie (CHATS)]
3521 *) Avoid using fixed size buffers for configuration file location.
3522 [Ben Laurie (CHATS)]
3524 *) Avoid filename truncation for various CA files.
3525 [Ben Laurie (CHATS)]
3527 *) Use sizeof in preference to magic numbers.
3528 [Ben Laurie (CHATS)]
3530 *) Avoid filename truncation in cert requests.
3531 [Ben Laurie (CHATS)]
3533 *) Add assertions to check for (supposedly impossible) buffer
3535 [Ben Laurie (CHATS)]
3537 *) Don't cache truncated DNS entries in the local cache (this could
3538 potentially lead to a spoofing attack).
3539 [Ben Laurie (CHATS)]
3541 *) Fix various buffers to be large enough for hex/decimal
3542 representations in a platform independent manner.
3543 [Ben Laurie (CHATS)]
3545 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3546 resizing buffers containing secrets, and use where appropriate.
3547 [Ben Laurie (CHATS)]
3549 *) Add BIO_indent() to avoid much slightly worrying code to do
3551 [Ben Laurie (CHATS)]
3553 *) Convert sprintf()/BIO_puts() to BIO_printf().
3554 [Ben Laurie (CHATS)]
3556 *) buffer_gets() could terminate with the buffer only half
3558 [Ben Laurie (CHATS)]
3560 *) Add assertions to prevent user-supplied crypto functions from
3561 overflowing internal buffers by having large block sizes, etc.
3562 [Ben Laurie (CHATS)]
3564 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3566 [Ben Laurie (CHATS)]
3568 *) Eliminate unused copy of key in RC4.
3569 [Ben Laurie (CHATS)]
3571 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3572 [Ben Laurie (CHATS)]
3574 *) Fix off-by-one error in EGD path.
3575 [Ben Laurie (CHATS)]
3577 *) If RANDFILE path is too long, ignore instead of truncating.
3578 [Ben Laurie (CHATS)]
3580 *) Eliminate unused and incorrectly sized X.509 structure
3582 [Ben Laurie (CHATS)]
3584 *) Eliminate unused and dangerous function knumber().
3585 [Ben Laurie (CHATS)]
3587 *) Eliminate unused and dangerous structure, KSSL_ERR.
3588 [Ben Laurie (CHATS)]
3590 *) Protect against overlong session ID context length in an encoded
3591 session object. Since these are local, this does not appear to be
3593 [Ben Laurie (CHATS)]
3595 *) Change from security patch (see 0.9.6e below) that did not affect
3596 the 0.9.6 release series:
3598 Remote buffer overflow in SSL3 protocol - an attacker could
3599 supply an oversized master key in Kerberos-enabled versions.
3601 [Ben Laurie (CHATS)]
3603 *) Change the SSL kerb5 codes to match RFC 2712.
3606 *) Make -nameopt work fully for req and add -reqopt switch.
3607 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3609 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3610 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3612 *) Make sure tests can be performed even if the corresponding algorithms
3613 have been removed entirely. This was also the last step to make
3614 OpenSSL compilable with DJGPP under all reasonable conditions.
3615 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3617 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3618 to allow version independent disabling of normally unselected ciphers,
3619 which may be activated as a side-effect of selecting a single cipher.
3621 (E.g., cipher list string "RSA" enables ciphersuites that are left
3622 out of "ALL" because they do not provide symmetric encryption.
3623 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3624 [Lutz Jaenicke, Bodo Moeller]
3626 *) Add appropriate support for separate platform-dependent build
3627 directories. The recommended way to make a platform-dependent
3628 build directory is the following (tested on Linux), maybe with
3631 # Place yourself outside of the OpenSSL source tree. In
3632 # this example, the environment variable OPENSSL_SOURCE
3633 # is assumed to contain the absolute OpenSSL source directory.
3634 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3635 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3636 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3637 mkdir -p `dirname $F`
3638 ln -s $OPENSSL_SOURCE/$F $F
3641 To be absolutely sure not to disturb the source tree, a "make clean"
3642 is a good thing. If it isn't successfull, don't worry about it,
3643 it probably means the source directory is very clean.
3646 *) Make sure any ENGINE control commands make local copies of string
3647 pointers passed to them whenever necessary. Otherwise it is possible
3648 the caller may have overwritten (or deallocated) the original string
3649 data when a later ENGINE operation tries to use the stored values.
3650 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3652 *) Improve diagnostics in file reading and command-line digests.
3653 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3655 *) Add AES modes CFB and OFB to the object database. Correct an
3656 error in AES-CFB decryption.
3659 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3660 allows existing EVP_CIPHER_CTX structures to be reused after
3661 calling EVP_*Final(). This behaviour is used by encryption
3662 BIOs and some applications. This has the side effect that
3663 applications must explicitly clean up cipher contexts with
3664 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3667 *) Check the values of dna and dnb in bn_mul_recursive before calling
3668 bn_mul_comba (a non zero value means the a or b arrays do not contain
3669 n2 elements) and fallback to bn_mul_normal if either is not zero.
3672 *) Fix escaping of non-ASCII characters when using the -subj option
3673 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3676 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3677 form for "surname", serialNumber has no short form.
3678 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3679 therefore remove "mail" short name for "internet 7".
3680 The OID for unique identifiers in X509 certificates is
3681 x500UniqueIdentifier, not uniqueIdentifier.
3682 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3685 *) Add an "init" command to the ENGINE config module and auto initialize
3686 ENGINEs. Without any "init" command the ENGINE will be initialized
3687 after all ctrl commands have been executed on it. If init=1 the
3688 ENGINE is initailized at that point (ctrls before that point are run
3689 on the uninitialized ENGINE and after on the initialized one). If
3690 init=0 then the ENGINE will not be iniatialized at all.
3693 *) Fix the 'app_verify_callback' interface so that the user-defined
3694 argument is actually passed to the callback: In the
3695 SSL_CTX_set_cert_verify_callback() prototype, the callback
3696 declaration has been changed from
3699 int (*cb)(X509_STORE_CTX *,void *);
3700 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3701 i=s->ctx->app_verify_callback(&ctx)
3702 has been changed into
3703 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3705 To update applications using SSL_CTX_set_cert_verify_callback(),
3706 a dummy argument can be added to their callback functions.
3707 [D. K. Smetters <smetters@parc.xerox.com>]
3709 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3710 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3712 *) Add and OPENSSL_LOAD_CONF define which will cause
3713 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3714 This allows older applications to transparently support certain
3715 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3716 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3717 load the config file and OPENSSL_add_all_algorithms_conf() which will
3718 always load it have also been added.
3721 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3722 Adjust NIDs and EVP layer.
3723 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3725 *) Config modules support in openssl utility.
3727 Most commands now load modules from the config file,
3728 though in a few (such as version) this isn't done
3729 because it couldn't be used for anything.
3731 In the case of ca and req the config file used is
3732 the same as the utility itself: that is the -config
3733 command line option can be used to specify an
3737 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3738 use "openssl_conf" if filename is NULL use default openssl config file.
3741 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3742 config section name. Add a new flag to tolerate a missing config file
3743 and move code to CONF_modules_load_file().
3746 *) Support for crypto accelerator cards from Accelerated Encryption
3747 Processing, www.aep.ie. (Use engine 'aep')
3748 The support was copied from 0.9.6c [engine] and adapted/corrected
3749 to work with the new engine framework.
3750 [AEP Inc. and Richard Levitte]
3752 *) Support for SureWare crypto accelerator cards from Baltimore
3753 Technologies. (Use engine 'sureware')
3754 The support was copied from 0.9.6c [engine] and adapted
3755 to work with the new engine framework.
3758 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3759 make the newer ENGINE framework commands for the CHIL engine work.
3760 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3762 *) Make it possible to produce shared libraries on ReliantUNIX.
3763 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3765 *) Add the configuration target debug-linux-ppro.
3766 Make 'openssl rsa' use the general key loading routines
3767 implemented in apps.c, and make those routines able to
3768 handle the key format FORMAT_NETSCAPE and the variant
3770 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3772 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3773 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3775 *) Add -keyform to rsautl, and document -engine.
3776 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3778 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3779 BIO_R_NO_SUCH_FILE error code rather than the generic
3780 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3783 *) Add new functions
3785 ERR_peek_last_error_line
3786 ERR_peek_last_error_line_data.
3787 These are similar to
3790 ERR_peek_error_line_data,
3791 but report on the latest error recorded rather than the first one
3792 still in the error queue.
3793 [Ben Laurie, Bodo Moeller]
3795 *) default_algorithms option in ENGINE config module. This allows things
3797 default_algorithms = ALL
3798 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3801 *) Prelminary ENGINE config module.
3804 *) New experimental application configuration code.
3807 *) Change the AES code to follow the same name structure as all other
3808 symmetric ciphers, and behave the same way. Move everything to
3809 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3810 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3812 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3813 [Ben Laurie and Theo de Raadt]
3815 *) Add option to output public keys in req command.
3816 [Massimiliano Pala madwolf@openca.org]
3818 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3819 (up to about 10% better than before for P-192 and P-224).
3822 *) New functions/macros
3824 SSL_CTX_set_msg_callback(ctx, cb)
3825 SSL_CTX_set_msg_callback_arg(ctx, arg)
3826 SSL_set_msg_callback(ssl, cb)
3827 SSL_set_msg_callback_arg(ssl, arg)
3829 to request calling a callback function
3831 void cb(int write_p, int version, int content_type,
3832 const void *buf, size_t len, SSL *ssl, void *arg)
3834 whenever a protocol message has been completely received
3835 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3836 protocol version according to which the SSL library interprets
3837 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3838 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3839 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3840 specification (change_cipher_spec(20), alert(21), handshake(22)).
3841 'buf' and 'len' point to the actual message, 'ssl' to the
3842 SSL object, and 'arg' is the application-defined value set by
3843 SSL[_CTX]_set_msg_callback_arg().
3845 'openssl s_client' and 'openssl s_server' have new '-msg' options
3846 to enable a callback that displays all protocol messages.
3849 *) Change the shared library support so shared libraries are built as
3850 soon as the corresponding static library is finished, and thereby get
3851 openssl and the test programs linked against the shared library.
3852 This still only happens when the keyword "shard" has been given to
3853 the configuration scripts.
3855 NOTE: shared library support is still an experimental thing, and
3856 backward binary compatibility is still not guaranteed.
3857 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3859 *) Add support for Subject Information Access extension.
3860 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3862 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3863 additional bytes when new memory had to be allocated, not just
3864 when reusing an existing buffer.
3867 *) New command line and configuration option 'utf8' for the req command.
3868 This allows field values to be specified as UTF8 strings.
3871 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3872 runs for the former and machine-readable output for the latter.
3875 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3876 of the e-mail address in the DN (i.e., it will go into a certificate
3877 extension only). The new configuration file option 'email_in_dn = no'
3878 has the same effect.
3879 [Massimiliano Pala madwolf@openca.org]
3881 *) Change all functions with names starting with des_ to be starting
3882 with DES_ instead. Add wrappers that are compatible with libdes,
3883 but are named _ossl_old_des_*. Finally, add macros that map the
3884 des_* symbols to the corresponding _ossl_old_des_* if libdes
3885 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3886 desired, the des_* symbols will be mapped to DES_*, with one
3889 Since we provide two compatibility mappings, the user needs to
3890 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3891 compatibility is desired. The default (i.e., when that macro
3892 isn't defined) is OpenSSL 0.9.6c compatibility.
3894 There are also macros that enable and disable the support of old
3895 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3896 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3897 are defined, the default will apply: to support the old des routines.
3899 In either case, one must include openssl/des.h to get the correct
3900 definitions. Do not try to just include openssl/des_old.h, that
3903 NOTE: This is a major break of an old API into a new one. Software
3904 authors are encouraged to switch to the DES_ style functions. Some
3905 time in the future, des_old.h and the libdes compatibility functions
3906 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3907 default), and then completely removed.
3910 *) Test for certificates which contain unsupported critical extensions.
3911 If such a certificate is found during a verify operation it is
3912 rejected by default: this behaviour can be overridden by either
3913 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3914 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3915 X509_supported_extension() has also been added which returns 1 if a
3916 particular extension is supported.
3919 *) Modify the behaviour of EVP cipher functions in similar way to digests
3920 to retain compatibility with existing code.
3923 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3924 compatibility with existing code. In particular the 'ctx' parameter does
3925 not have to be to be initialized before the call to EVP_DigestInit() and
3926 it is tidied up after a call to EVP_DigestFinal(). New function
3927 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3928 EVP_MD_CTX_copy() changed to not require the destination to be
3929 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3930 requires the destination to be valid.
3932 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3933 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3936 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3937 so that complete 'Handshake' protocol structures are kept in memory
3938 instead of overwriting 'msg_type' and 'length' with 'body' data.
3941 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3942 [Massimo Santin via Richard Levitte]
3944 *) Major restructuring to the underlying ENGINE code. This includes
3945 reduction of linker bloat, separation of pure "ENGINE" manipulation
3946 (initialisation, etc) from functionality dealing with implementations
3947 of specific crypto iterfaces. This change also introduces integrated
3948 support for symmetric ciphers and digest implementations - so ENGINEs
3949 can now accelerate these by providing EVP_CIPHER and EVP_MD
3950 implementations of their own. This is detailed in crypto/engine/README
3951 as it couldn't be adequately described here. However, there are a few
3952 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3953 were changed in the original introduction of ENGINE code have now
3954 reverted back - the hooking from this code to ENGINE is now a good
3955 deal more passive and at run-time, operations deal directly with
3956 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3957 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3958 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3959 they were not being used by the framework as there is no concept of a
3960 BIGNUM_METHOD and they could not be generalised to the new
3961 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3962 ENGINE_cpy() has been removed as it cannot be consistently defined in
3966 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3969 *) Change mkdef.pl to sort symbols that get the same entry number,
3970 and make sure the automatically generated functions ERR_load_*
3971 become part of libeay.num as well.
3974 *) New function SSL_renegotiate_pending(). This returns true once
3975 renegotiation has been requested (either SSL_renegotiate() call
3976 or HelloRequest/ClientHello receveived from the peer) and becomes
3977 false once a handshake has been completed.
3978 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3979 sends a HelloRequest, but does not ensure that a handshake takes
3980 place. SSL_renegotiate_pending() is useful for checking if the
3981 client has followed the request.)
3984 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3985 By default, clients may request session resumption even during
3986 renegotiation (if session ID contexts permit); with this option,
3987 session resumption is possible only in the first handshake.
3989 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3990 more bits available for options that should not be part of
3991 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3994 *) Add some demos for certificate and certificate request creation.
3997 *) Make maximum certificate chain size accepted from the peer application
3998 settable (SSL*_get/set_max_cert_list()), as proposed by
3999 "Douglas E. Engert" <deengert@anl.gov>.
4002 *) Add support for shared libraries for Unixware-7
4003 (Boyd Lynn Gerber <gerberb@zenez.com>).
4006 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4007 be done prior to destruction. Use this to unload error strings from
4008 ENGINEs that load their own error strings. NB: This adds two new API
4009 functions to "get" and "set" this destroy handler in an ENGINE.
4012 *) Alter all existing ENGINE implementations (except "openssl" and
4013 "openbsd") to dynamically instantiate their own error strings. This
4014 makes them more flexible to be built both as statically-linked ENGINEs
4015 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4016 Also, add stub code to each that makes building them as self-contained
4017 shared-libraries easier (see README.ENGINE).
4020 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4021 implementations into applications that are completely implemented in
4022 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4023 commands that can be used to configure what shared-library to load and
4024 to control aspects of the way it is handled. Also, made an update to
4025 the README.ENGINE file that brings its information up-to-date and
4026 provides some information and instructions on the "dynamic" ENGINE
4027 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4030 *) Make it possible to unload ranges of ERR strings with a new
4031 "ERR_unload_strings" function.
4034 *) Add a copy() function to EVP_MD.
4037 *) Make EVP_MD routines take a context pointer instead of just the
4038 md_data void pointer.
4041 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4042 that the digest can only process a single chunk of data
4043 (typically because it is provided by a piece of
4044 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4045 is only going to provide a single chunk of data, and hence the
4046 framework needn't accumulate the data for oneshot drivers.
4049 *) As with "ERR", make it possible to replace the underlying "ex_data"
4050 functions. This change also alters the storage and management of global
4051 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4052 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4053 index counters. The API functions that use this state have been changed
4054 to take a "class_index" rather than pointers to the class's local STACK
4055 and counter, and there is now an API function to dynamically create new
4056 classes. This centralisation allows us to (a) plug a lot of the
4057 thread-safety problems that existed, and (b) makes it possible to clean
4058 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4059 such data would previously have always leaked in application code and
4060 workarounds were in place to make the memory debugging turn a blind eye
4061 to it. Application code that doesn't use this new function will still
4062 leak as before, but their memory debugging output will announce it now
4063 rather than letting it slide.
4065 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4066 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4067 has a return value to indicate success or failure.
4070 *) Make it possible to replace the underlying "ERR" functions such that the
4071 global state (2 LHASH tables and 2 locks) is only used by the "default"
4072 implementation. This change also adds two functions to "get" and "set"
4073 the implementation prior to it being automatically set the first time
4074 any other ERR function takes place. Ie. an application can call "get",
4075 pass the return value to a module it has just loaded, and that module
4076 can call its own "set" function using that value. This means the
4077 module's "ERR" operations will use (and modify) the error state in the
4078 application and not in its own statically linked copy of OpenSSL code.
4081 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4082 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4083 the operation, and provides a more encapsulated way for external code
4084 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4085 to use these functions rather than manually incrementing the counts.
4087 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4090 *) Add EVP test program.
4093 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4096 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4097 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4098 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4099 These allow a CRL to be built without having to access X509_CRL fields
4100 directly. Modify 'ca' application to use new functions.
4103 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4104 bug workarounds. Rollback attack detection is a security feature.
4105 The problem will only arise on OpenSSL servers when TLSv1 is not
4106 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4107 Software authors not wanting to support TLSv1 will have special reasons
4108 for their choice and can explicitly enable this option.
4109 [Bodo Moeller, Lutz Jaenicke]
4111 *) Rationalise EVP so it can be extended: don't include a union of
4112 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4113 (similar to those existing for EVP_CIPHER_CTX).
4118 EVP_MD_CTX_init(&md); /* new function call */
4119 EVP_DigestInit(&md, EVP_sha1());
4120 EVP_DigestUpdate(&md, in, len);
4121 EVP_DigestFinal(&md, out, NULL);
4122 EVP_MD_CTX_cleanup(&md); /* new function call */
4126 *) Make DES key schedule conform to the usual scheme, as well as
4127 correcting its structure. This means that calls to DES functions
4128 now have to pass a pointer to a des_key_schedule instead of a
4129 plain des_key_schedule (which was actually always a pointer
4132 des_key_schedule ks;
4134 des_set_key_checked(..., &ks);
4135 des_ncbc_encrypt(..., &ks, ...);
4137 (Note that a later change renames 'des_...' into 'DES_...'.)
4140 *) Initial reduction of linker bloat: the use of some functions, such as
4141 PEM causes large amounts of unused functions to be linked in due to
4142 poor organisation. For example pem_all.c contains every PEM function
4143 which has a knock on effect of linking in large amounts of (unused)
4144 ASN1 code. Grouping together similar functions and splitting unrelated
4145 functions prevents this.
4148 *) Cleanup of EVP macros.
4151 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4152 correct _ecb suffix.
4155 *) Add initial OCSP responder support to ocsp application. The
4156 revocation information is handled using the text based index
4157 use by the ca application. The responder can either handle
4158 requests generated internally, supplied in files (for example
4159 via a CGI script) or using an internal minimal server.
4162 *) Add configuration choices to get zlib compression for TLS.
4165 *) Changes to Kerberos SSL for RFC 2712 compliance:
4166 1. Implemented real KerberosWrapper, instead of just using
4167 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4168 2. Implemented optional authenticator field of KerberosWrapper.
4170 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4171 and authenticator structs; see crypto/krb5/.
4173 Generalized Kerberos calls to support multiple Kerberos libraries.
4174 [Vern Staats <staatsvr@asc.hpc.mil>,
4175 Jeffrey Altman <jaltman@columbia.edu>
4176 via Richard Levitte]
4178 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4179 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4180 values for each of the key sizes rather than having just
4181 parameters (and 'speed' generating keys each time).
4184 *) Speed up EVP routines.
4187 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4188 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4189 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4190 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4192 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4193 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4194 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4197 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4199 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4202 *) Added the OS2-EMX target.
4203 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4205 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4206 to support NCONF routines in extension code. New function CONF_set_nconf()
4207 to allow functions which take an NCONF to also handle the old LHASH
4208 structure: this means that the old CONF compatible routines can be
4209 retained (in particular wrt extensions) without having to duplicate the
4210 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4213 *) Enhance the general user interface with mechanisms for inner control
4214 and with possibilities to have yes/no kind of prompts.
4217 *) Change all calls to low level digest routines in the library and
4218 applications to use EVP. Add missing calls to HMAC_cleanup() and
4219 don't assume HMAC_CTX can be copied using memcpy().
4220 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4222 *) Add the possibility to control engines through control names but with
4223 arbitrary arguments instead of just a string.
4224 Change the key loaders to take a UI_METHOD instead of a callback
4225 function pointer. NOTE: this breaks binary compatibility with earlier
4226 versions of OpenSSL [engine].
4227 Adapt the nCipher code for these new conditions and add a card insertion
4231 *) Enhance the general user interface with mechanisms to better support
4232 dialog box interfaces, application-defined prompts, the possibility
4233 to use defaults (for example default passwords from somewhere else)
4234 and interrupts/cancellations.
4237 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4238 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4241 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4242 tidy up some unnecessarily weird code in 'sk_new()').
4243 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4245 *) Change the key loading routines for ENGINEs to use the same kind
4246 callback (pem_password_cb) as all other routines that need this
4250 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4251 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4252 than this minimum value is recommended.
4255 *) New random seeder for OpenVMS, using the system process statistics
4256 that are easily reachable.
4259 *) Windows apparently can't transparently handle global
4260 variables defined in DLLs. Initialisations such as:
4262 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4264 wont compile. This is used by the any applications that need to
4265 declare their own ASN1 modules. This was fixed by adding the option
4266 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4267 needed for static libraries under Win32.
4270 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4271 setting of purpose and trust fields. New X509_STORE trust and
4272 purpose functions and tidy up setting in other SSL functions.
4275 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4276 structure. These are inherited by X509_STORE_CTX when it is
4277 initialised. This allows various defaults to be set in the
4278 X509_STORE structure (such as flags for CRL checking and custom
4279 purpose or trust settings) for functions which only use X509_STORE_CTX
4280 internally such as S/MIME.
4282 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4283 trust settings if they are not set in X509_STORE. This allows X509_STORE
4284 purposes and trust (in S/MIME for example) to override any set by default.
4286 Add command line options for CRL checking to smime, s_client and s_server
4290 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4291 are set then the CRL is looked up in the X509_STORE structure and
4292 its validity and signature checked, then if the certificate is found
4293 in the CRL the verify fails with a revoked error.
4295 Various new CRL related callbacks added to X509_STORE_CTX structure.
4297 Command line options added to 'verify' application to support this.
4299 This needs some additional work, such as being able to handle multiple
4300 CRLs with different times, extension based lookup (rather than just
4301 by subject name) and ultimately more complete V2 CRL extension
4305 *) Add a general user interface API (crypto/ui/). This is designed
4306 to replace things like des_read_password and friends (backward
4307 compatibility functions using this new API are provided).
4308 The purpose is to remove prompting functions from the DES code
4309 section as well as provide for prompting through dialog boxes in
4310 a window system and the like.
4313 *) Add "ex_data" support to ENGINE so implementations can add state at a
4314 per-structure level rather than having to store it globally.
4317 *) Make it possible for ENGINE structures to be copied when retrieved by
4318 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4319 This causes the "original" ENGINE structure to act like a template,
4320 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4321 operational state can be localised to each ENGINE structure, despite the
4322 fact they all share the same "methods". New ENGINE structures returned in
4323 this case have no functional references and the return value is the single
4324 structural reference. This matches the single structural reference returned
4325 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4329 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4330 needs to match any other type at all we need to manually clear the
4334 *) Changes to the "openssl engine" utility to include;
4335 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4336 about an ENGINE's available control commands.
4337 - executing control commands from command line arguments using the
4338 '-pre' and '-post' switches. '-post' is only used if '-t' is
4339 specified and the ENGINE is successfully initialised. The syntax for
4340 the individual commands are colon-separated, for example;
4341 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4344 *) New dynamic control command support for ENGINEs. ENGINEs can now
4345 declare their own commands (numbers), names (strings), descriptions,
4346 and input types for run-time discovery by calling applications. A
4347 subset of these commands are implicitly classed as "executable"
4348 depending on their input type, and only these can be invoked through
4349 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4350 can be based on user input, config files, etc). The distinction is
4351 that "executable" commands cannot return anything other than a boolean
4352 result and can only support numeric or string input, whereas some
4353 discoverable commands may only be for direct use through
4354 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4355 pointers, or other custom uses. The "executable" commands are to
4356 support parameterisations of ENGINE behaviour that can be
4357 unambiguously defined by ENGINEs and used consistently across any
4358 OpenSSL-based application. Commands have been added to all the
4359 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4360 control over shared-library paths without source code alterations.
4363 *) Changed all ENGINE implementations to dynamically allocate their
4364 ENGINEs rather than declaring them statically. Apart from this being
4365 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4366 this also allows the implementations to compile without using the
4367 internal engine_int.h header.
4370 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4371 'const' value. Any code that should be able to modify a RAND_METHOD
4372 should already have non-const pointers to it (ie. they should only
4373 modify their own ones).
4376 *) Made a variety of little tweaks to the ENGINE code.
4377 - "atalla" and "ubsec" string definitions were moved from header files
4378 to C code. "nuron" string definitions were placed in variables
4379 rather than hard-coded - allowing parameterisation of these values
4380 later on via ctrl() commands.
4381 - Removed unused "#if 0"'d code.
4382 - Fixed engine list iteration code so it uses ENGINE_free() to release
4383 structural references.
4384 - Constified the RAND_METHOD element of ENGINE structures.
4385 - Constified various get/set functions as appropriate and added
4386 missing functions (including a catch-all ENGINE_cpy that duplicates
4387 all ENGINE values onto a new ENGINE except reference counts/state).
4388 - Removed NULL parameter checks in get/set functions. Setting a method
4389 or function to NULL is a way of cancelling out a previously set
4390 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4391 and doesn't justify the extra error symbols and code.
4392 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4393 flags from engine_int.h to engine.h.
4394 - Changed prototypes for ENGINE handler functions (init(), finish(),
4395 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4398 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4399 to the algorithm using long division. The binary algorithm can be
4400 used only if the modulus is odd. On 32-bit systems, it is faster
4401 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4402 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4403 up to 450 bits. In 64-bit environments, the binary algorithm
4404 appears to be advantageous for much longer moduli; here we use it
4405 for moduli up to 2048 bits.
4408 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4409 could not support the combine flag in choice fields.
4412 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4413 extensions from a certificate request to the certificate.
4416 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4417 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4418 file: this allows the display of the certificate about to be
4419 signed to be customised, to allow certain fields to be included
4420 or excluded and extension details. The old system didn't display
4421 multicharacter strings properly, omitted fields not in the policy
4422 and couldn't display additional details such as extensions.
4425 *) Function EC_POINTs_mul for multiple scalar multiplication
4426 of an arbitrary number of elliptic curve points
4427 \sum scalars[i]*points[i],
4428 optionally including the generator defined for the EC_GROUP:
4429 scalar*generator + \sum scalars[i]*points[i].
4431 EC_POINT_mul is a simple wrapper function for the typical case
4432 that the point list has just one item (besides the optional
4436 *) First EC_METHODs for curves over GF(p):
4438 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4439 operations and provides various method functions that can also
4440 operate with faster implementations of modular arithmetic.
4442 EC_GFp_mont_method() reuses most functions that are part of
4443 EC_GFp_simple_method, but uses Montgomery arithmetic.
4445 [Bodo Moeller; point addition and point doubling
4446 implementation directly derived from source code provided by
4447 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4449 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4450 crypto/ec/ec_lib.c):
4452 Curves are EC_GROUP objects (with an optional group generator)
4453 based on EC_METHODs that are built into the library.
4455 Points are EC_POINT objects based on EC_GROUP objects.
4457 Most of the framework would be able to handle curves over arbitrary
4458 finite fields, but as there are no obvious types for fields other
4459 than GF(p), some functions are limited to that for now.
4462 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4463 that the file contains a complete HTTP response.
4466 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4467 change the def and num file printf format specifier from "%-40sXXX"
4468 to "%-39s XXX". The latter will always guarantee a space after the
4469 field while the former will cause them to run together if the field
4470 is 40 of more characters long.
4473 *) Constify the cipher and digest 'method' functions and structures
4474 and modify related functions to take constant EVP_MD and EVP_CIPHER
4478 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4479 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4482 *) Modify EVP_Digest*() routines so they now return values. Although the
4483 internal software routines can never fail additional hardware versions
4487 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4489 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4490 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4493 ERR_R_NESTED_ASN1_ERROR
4495 ERR_R_MISSING_ASN1_EOS
4496 were 4 .. 9, conflicting with
4497 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4499 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4500 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4502 Add new error code 'ERR_R_INTERNAL_ERROR'.
4505 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4509 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4510 sets the subject name for a new request or supersedes the
4511 subject name in a given request. Formats that can be parsed are
4512 'CN=Some Name, OU=myOU, C=IT'
4514 'CN=Some Name/OU=myOU/C=IT'.
4516 Add options '-batch' and '-verbose' to 'openssl req'.
4517 [Massimiliano Pala <madwolf@hackmasters.net>]
4519 *) Introduce the possibility to access global variables through
4520 functions on platform were that's the best way to handle exporting
4521 global variables in shared libraries. To enable this functionality,
4522 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4523 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4524 is normally done by Configure or something similar).
4526 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4527 in the source file (foo.c) like this:
4529 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4530 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4532 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4533 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4535 OPENSSL_DECLARE_GLOBAL(int,foo);
4536 #define foo OPENSSL_GLOBAL_REF(foo)
4537 OPENSSL_DECLARE_GLOBAL(double,bar);
4538 #define bar OPENSSL_GLOBAL_REF(bar)
4540 The #defines are very important, and therefore so is including the
4541 header file everywhere where the defined globals are used.
4543 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4544 of ASN.1 items, but that structure is a bit different.
4546 The largest change is in util/mkdef.pl which has been enhanced with
4547 better and easier to understand logic to choose which symbols should
4548 go into the Windows .def files as well as a number of fixes and code
4549 cleanup (among others, algorithm keywords are now sorted
4550 lexicographically to avoid constant rewrites).
4553 *) In BN_div() keep a copy of the sign of 'num' before writing the
4554 result to 'rm' because if rm==num the value will be overwritten
4555 and produce the wrong result if 'num' is negative: this caused
4556 problems with BN_mod() and BN_nnmod().
4559 *) Function OCSP_request_verify(). This checks the signature on an
4560 OCSP request and verifies the signer certificate. The signer
4561 certificate is just checked for a generic purpose and OCSP request
4565 *) Add OCSP_check_validity() function to check the validity of OCSP
4566 responses. OCSP responses are prepared in real time and may only
4567 be a few seconds old. Simply checking that the current time lies
4568 between thisUpdate and nextUpdate max reject otherwise valid responses
4569 caused by either OCSP responder or client clock inaccuracy. Instead
4570 we allow thisUpdate and nextUpdate to fall within a certain period of
4571 the current time. The age of the response can also optionally be
4572 checked. Two new options -validity_period and -status_age added to
4576 *) If signature or public key algorithm is unrecognized print out its
4577 OID rather that just UNKNOWN.
4580 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4581 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4582 ID to be generated from the issuer certificate alone which can then be
4583 passed to OCSP_id_issuer_cmp().
4586 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4587 ASN1 modules to export functions returning ASN1_ITEM pointers
4588 instead of the ASN1_ITEM structures themselves. This adds several
4589 new macros which allow the underlying ASN1 function/structure to
4590 be accessed transparently. As a result code should not use ASN1_ITEM
4591 references directly (such as &X509_it) but instead use the relevant
4592 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4593 use of the new ASN1 code on platforms where exporting structures
4594 is problematical (for example in shared libraries) but exporting
4595 functions returning pointers to structures is not.
4598 *) Add support for overriding the generation of SSL/TLS session IDs.
4599 These callbacks can be registered either in an SSL_CTX or per SSL.
4600 The purpose of this is to allow applications to control, if they wish,
4601 the arbitrary values chosen for use as session IDs, particularly as it
4602 can be useful for session caching in multiple-server environments. A
4603 command-line switch for testing this (and any client code that wishes
4604 to use such a feature) has been added to "s_server".
4605 [Geoff Thorpe, Lutz Jaenicke]
4607 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4608 of the form '#if defined(...) || defined(...) || ...' and
4609 '#if !defined(...) && !defined(...) && ...'. This also avoids
4610 the growing number of special cases it was previously handling.
4613 *) Make all configuration macros available for application by making
4614 sure they are available in opensslconf.h, by giving them names starting
4615 with "OPENSSL_" to avoid conflicts with other packages and by making
4616 sure e_os2.h will cover all platform-specific cases together with
4618 Additionally, it is now possible to define configuration/platform-
4619 specific names (called "system identities"). In the C code, these
4620 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4621 macro with the name beginning with "OPENSSL_SYS_", which is determined
4622 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4626 *) New option -set_serial to 'req' and 'x509' this allows the serial
4627 number to use to be specified on the command line. Previously self
4628 signed certificates were hard coded with serial number 0 and the
4629 CA options of 'x509' had to use a serial number in a file which was
4633 *) New options to 'ca' utility to support V2 CRL entry extensions.
4634 Currently CRL reason, invalidity date and hold instruction are
4635 supported. Add new CRL extensions to V3 code and some new objects.
4638 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4639 disable standard block padding (aka PKCS#5 padding) in the EVP
4640 API, which was previously mandatory. This means that the data is
4641 not padded in any way and so the total length much be a multiple
4642 of the block size, otherwise an error occurs.
4645 *) Initial (incomplete) OCSP SSL support.
4648 *) New function OCSP_parse_url(). This splits up a URL into its host,
4649 port and path components: primarily to parse OCSP URLs. New -url
4650 option to ocsp utility.
4653 *) New nonce behavior. The return value of OCSP_check_nonce() now
4654 reflects the various checks performed. Applications can decide
4655 whether to tolerate certain situations such as an absent nonce
4656 in a response when one was present in a request: the ocsp application
4657 just prints out a warning. New function OCSP_add1_basic_nonce()
4658 this is to allow responders to include a nonce in a response even if
4659 the request is nonce-less.
4662 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4663 skipped when using openssl x509 multiple times on a single input file,
4664 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4667 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4668 set string type: to handle setting ASN1_TIME structures. Fix ca
4669 utility to correctly initialize revocation date of CRLs.
4672 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4673 the clients preferred ciphersuites and rather use its own preferences.
4674 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4675 Internet Explorer by ensuring unchanged hash method during stepup.
4676 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4679 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4680 to aes and add a new 'exist' option to print out symbols that don't
4684 *) Additional options to ocsp utility to allow flags to be set and
4685 additional certificates supplied.
4688 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4689 OCSP client a number of certificate to only verify the response
4693 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4694 handle the new API. Currently only ECB, CBC modes supported. Add new
4697 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4698 Encryption Standard (AES) Ciphersuites for Transport Layer
4699 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4700 not enabled by default and were not part of the "ALL" ciphersuite
4701 alias because they were not yet official; they could be
4702 explicitly requested by specifying the "AESdraft" ciphersuite
4703 group alias. In the final release of OpenSSL 0.9.7, the group
4704 alias is called "AES" and is part of "ALL".)
4705 [Ben Laurie, Steve Henson, Bodo Moeller]
4707 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4708 request to response.
4711 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4712 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4713 extract information from a certificate request. OCSP_response_create()
4714 creates a response and optionally adds a basic response structure.
4715 OCSP_basic_add1_status() adds a complete single response to a basic
4716 response and returns the OCSP_SINGLERESP structure just added (to allow
4717 extensions to be included for example). OCSP_basic_add1_cert() adds a
4718 certificate to a basic response and OCSP_basic_sign() signs a basic
4719 response with various flags. New helper functions ASN1_TIME_check()
4720 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4721 (converts ASN1_TIME to GeneralizedTime).
4724 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4725 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4726 structure from a certificate. X509_pubkey_digest() digests the public_key
4727 contents: this is used in various key identifiers.
4730 *) Make sk_sort() tolerate a NULL argument.
4731 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4733 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4734 passed by the function are trusted implicitly. If any of them signed the
4735 response then it is assumed to be valid and is not verified.
4738 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4739 to data. This was previously part of the PKCS7 ASN1 code. This
4740 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4741 [Steve Henson, reported by Kenneth R. Robinette
4742 <support@securenetterm.com>]
4744 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4745 routines: without these tracing memory leaks is very painful.
4746 Fix leaks in PKCS12 and PKCS7 routines.
4749 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4750 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4751 effectively meant GeneralizedTime would never be used. Now it
4752 is initialised to -1 but X509_time_adj() now has to check the value
4753 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4754 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4755 [Steve Henson, reported by Kenneth R. Robinette
4756 <support@securenetterm.com>]
4758 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4759 result in a zero length in the ASN1_INTEGER structure which was
4760 not consistent with the structure when d2i_ASN1_INTEGER() was used
4761 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4762 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4763 where it did not print out a minus for negative ASN1_INTEGER.
4766 *) Add summary printout to ocsp utility. The various functions which
4767 convert status values to strings have been renamed to:
4768 OCSP_response_status_str(), OCSP_cert_status_str() and
4769 OCSP_crl_reason_str() and are no longer static. New options
4770 to verify nonce values and to disable verification. OCSP response
4771 printout format cleaned up.
4774 *) Add additional OCSP certificate checks. These are those specified
4775 in RFC2560. This consists of two separate checks: the CA of the
4776 certificate being checked must either be the OCSP signer certificate
4777 or the issuer of the OCSP signer certificate. In the latter case the
4778 OCSP signer certificate must contain the OCSP signing extended key
4779 usage. This check is performed by attempting to match the OCSP
4780 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4781 in the OCSP_CERTID structures of the response.
4784 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4785 and related routines. This uses the standard OpenSSL certificate
4786 verify routines to perform initial checks (just CA validity) and
4787 to obtain the certificate chain. Then additional checks will be
4788 performed on the chain. Currently the root CA is checked to see
4789 if it is explicitly trusted for OCSP signing. This is used to set
4790 a root CA as a global signing root: that is any certificate that
4791 chains to that CA is an acceptable OCSP signing certificate.
4794 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4795 extensions from a separate configuration file.
4796 As when reading extensions from the main configuration file,
4797 the '-extensions ...' option may be used for specifying the
4799 [Massimiliano Pala <madwolf@comune.modena.it>]
4801 *) New OCSP utility. Allows OCSP requests to be generated or
4802 read. The request can be sent to a responder and the output
4803 parsed, outputed or printed in text form. Not complete yet:
4804 still needs to check the OCSP response validity.
4807 *) New subcommands for 'openssl ca':
4808 'openssl ca -status <serial>' prints the status of the cert with
4809 the given serial number (according to the index file).
4810 'openssl ca -updatedb' updates the expiry status of certificates
4812 [Massimiliano Pala <madwolf@comune.modena.it>]
4814 *) New '-newreq-nodes' command option to CA.pl. This is like
4815 '-newreq', but calls 'openssl req' with the '-nodes' option
4816 so that the resulting key is not encrypted.
4817 [Damien Miller <djm@mindrot.org>]
4819 *) New configuration for the GNU Hurd.
4820 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4822 *) Initial code to implement OCSP basic response verify. This
4823 is currently incomplete. Currently just finds the signer's
4824 certificate and verifies the signature on the response.
4827 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4828 value of OPENSSLDIR. This is available via the new '-d' option
4829 to 'openssl version', and is also included in 'openssl version -a'.
4832 *) Allowing defining memory allocation callbacks that will be given
4833 file name and line number information in additional arguments
4834 (a const char* and an int). The basic functionality remains, as
4835 well as the original possibility to just replace malloc(),
4836 realloc() and free() by functions that do not know about these
4837 additional arguments. To register and find out the current
4838 settings for extended allocation functions, the following
4839 functions are provided:
4841 CRYPTO_set_mem_ex_functions
4842 CRYPTO_set_locked_mem_ex_functions
4843 CRYPTO_get_mem_ex_functions
4844 CRYPTO_get_locked_mem_ex_functions
4846 These work the same way as CRYPTO_set_mem_functions and friends.
4847 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4848 extended allocation function is enabled.
4849 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4850 a conventional allocation function is enabled.
4851 [Richard Levitte, Bodo Moeller]
4853 *) Finish off removing the remaining LHASH function pointer casts.
4854 There should no longer be any prototype-casting required when using
4855 the LHASH abstraction, and any casts that remain are "bugs". See
4856 the callback types and macros at the head of lhash.h for details
4857 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4860 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4861 If /dev/[u]random devices are not available or do not return enough
4862 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4864 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4865 /etc/entropy will be queried once each in this sequence, quering stops
4866 when enough entropy was collected without querying more sockets.
4869 *) Change the Unix RAND_poll() variant to be able to poll several
4870 random devices, as specified by DEVRANDOM, until a sufficient amount
4871 of data has been collected. We spend at most 10 ms on each file
4872 (select timeout) and read in non-blocking mode. DEVRANDOM now
4873 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4874 (previously it was just the string "/dev/urandom"), so on typical
4875 platforms the 10 ms delay will never occur.
4876 Also separate out the Unix variant to its own file, rand_unix.c.
4877 For VMS, there's a currently-empty rand_vms.c.
4880 *) Move OCSP client related routines to ocsp_cl.c. These
4881 provide utility functions which an application needing
4882 to issue a request to an OCSP responder and analyse the
4883 response will typically need: as opposed to those which an
4884 OCSP responder itself would need which will be added later.
4886 OCSP_request_sign() signs an OCSP request with an API similar
4887 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4888 response. OCSP_response_get1_basic() extracts basic response
4889 from response. OCSP_resp_find_status(): finds and extracts status
4890 information from an OCSP_CERTID structure (which will be created
4891 when the request structure is built). These are built from lower
4892 level functions which work on OCSP_SINGLERESP structures but
4893 wont normally be used unless the application wishes to examine
4894 extensions in the OCSP response for example.
4896 Replace nonce routines with a pair of functions.
4897 OCSP_request_add1_nonce() adds a nonce value and optionally
4898 generates a random value. OCSP_check_nonce() checks the
4899 validity of the nonce in an OCSP response.
4902 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4903 This doesn't copy the supplied OCSP_CERTID and avoids the
4904 need to free up the newly created id. Change return type
4905 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4906 This can then be used to add extensions to the request.
4907 Deleted OCSP_request_new(), since most of its functionality
4908 is now in OCSP_REQUEST_new() (and the case insensitive name
4909 clash) apart from the ability to set the request name which
4910 will be added elsewhere.
4913 *) Update OCSP API. Remove obsolete extensions argument from
4914 various functions. Extensions are now handled using the new
4915 OCSP extension code. New simple OCSP HTTP function which
4916 can be used to send requests and parse the response.
4919 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4920 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4921 uses the special reorder version of SET OF to sort the attributes
4922 and reorder them to match the encoded order. This resolves a long
4923 standing problem: a verify on a PKCS7 structure just after signing
4924 it used to fail because the attribute order did not match the
4925 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4926 it uses the received order. This is necessary to tolerate some broken
4927 software that does not order SET OF. This is handled by encoding
4928 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4929 to produce the required SET OF.
4932 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4933 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4934 files to get correct declarations of the ASN.1 item variables.
4937 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4938 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4939 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4940 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4941 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4942 ASN1_ITEM and no wrapper functions.
4945 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4946 replace the old function pointer based I/O routines. Change most of
4947 the *_d2i_bio() and *_d2i_fp() functions to use these.
4950 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4951 lines, recognice more "algorithms" that can be deselected, and make
4952 it complain about algorithm deselection that isn't recognised.
4955 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4956 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4957 to use new functions. Add NO_ASN1_OLD which can be set to remove
4958 some old style ASN1 functions: this can be used to determine if old
4959 code will still work when these eventually go away.
4962 *) New extension functions for OCSP structures, these follow the
4963 same conventions as certificates and CRLs.
4966 *) New function X509V3_add1_i2d(). This automatically encodes and
4967 adds an extension. Its behaviour can be customised with various
4968 flags to append, replace or delete. Various wrappers added for
4969 certifcates and CRLs.
4972 *) Fix to avoid calling the underlying ASN1 print routine when
4973 an extension cannot be parsed. Correct a typo in the
4974 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4977 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4978 entries for variables.
4981 *) Add functionality to apps/openssl.c for detecting locking
4982 problems: As the program is single-threaded, all we have
4983 to do is register a locking callback using an array for
4984 storing which locks are currently held by the program.
4987 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4988 SSL_get_ex_data_X509_STORE_idx(), which is used in
4989 ssl_verify_cert_chain() and thus can be called at any time
4990 during TLS/SSL handshakes so that thread-safety is essential.
4991 Unfortunately, the ex_data design is not at all suited
4992 for multi-threaded use, so it probably should be abolished.
4995 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4996 [Broadcom, tweaked and integrated by Geoff Thorpe]
4998 *) Move common extension printing code to new function
4999 X509V3_print_extensions(). Reorganise OCSP print routines and
5000 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5003 *) New function X509_signature_print() to remove duplication in some
5007 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5008 set (this was treated exactly the same as SET OF previously). This
5009 is used to reorder the STACK representing the structure to match the
5010 encoding. This will be used to get round a problem where a PKCS7
5011 structure which was signed could not be verified because the STACK
5012 order did not reflect the encoded order.
5015 *) Reimplement the OCSP ASN1 module using the new code.
5018 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5019 for its ASN1 operations. The old style function pointers still exist
5020 for now but they will eventually go away.
5023 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5024 completely replaces the old ASN1 functionality with a table driven
5025 encoder and decoder which interprets an ASN1_ITEM structure describing
5026 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5027 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5028 has also been converted to the new form.
5031 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5032 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5033 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5034 for negative moduli.
5037 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5038 of not touching the result's sign bit.
5041 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5045 *) Changed the LHASH code to use prototypes for callbacks, and created
5046 macros to declare and implement thin (optionally static) functions
5047 that provide type-safety and avoid function pointer casting for the
5048 type-specific callbacks.
5051 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5053 [Veers Staats <staatsvr@asc.hpc.mil>,
5054 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5056 *) Reformat the FAQ so the different questions and answers can be divided
5057 in sections depending on the subject.
5060 *) Have the zlib compression code load ZLIB.DLL dynamically under
5064 *) New function BN_mod_sqrt for computing square roots modulo a prime
5065 (using the probabilistic Tonelli-Shanks algorithm unless
5066 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5067 be handled deterministically).
5068 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5070 *) Make BN_mod_inverse faster by explicitly handling small quotients
5071 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5072 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5075 *) New function BN_kronecker.
5078 *) Fix BN_gcd so that it works on negative inputs; the result is
5079 positive unless both parameters are zero.
5080 Previously something reasonably close to an infinite loop was
5081 possible because numbers could be growing instead of shrinking
5082 in the implementation of Euclid's algorithm.
5085 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5086 sign of the number in question.
5088 Fix BN_is_word(a,w) to work correctly for w == 0.
5090 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5091 because its test if the absolute value of 'a' equals 'w'.
5092 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5093 it exists mostly for use in the implementations of BN_is_zero(),
5094 BN_is_one(), and BN_is_word().
5097 *) New function BN_swap.
5100 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5101 the exponentiation functions are more likely to produce reasonable
5102 results on negative inputs.
5105 *) Change BN_mod_mul so that the result is always non-negative.
5106 Previously, it could be negative if one of the factors was negative;
5107 I don't think anyone really wanted that behaviour.
5110 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5111 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5112 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5113 and add new functions:
5122 BN_mod_lshift1_quick
5126 These functions always generate non-negative results.
5128 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5129 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5131 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5132 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5133 be reduced modulo m.
5134 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5137 The following entry accidentily appeared in the CHANGES file
5138 distributed with OpenSSL 0.9.7. The modifications described in
5139 it do *not* apply to OpenSSL 0.9.7.
5141 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5142 was actually never needed) and in BN_mul(). The removal in BN_mul()
5143 required a small change in bn_mul_part_recursive() and the addition
5144 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5145 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5146 bn_sub_words() and bn_add_words() except they take arrays with
5151 *) In 'openssl passwd', verify passwords read from the terminal
5152 unless the '-salt' option is used (which usually means that
5153 verification would just waste user's time since the resulting
5154 hash is going to be compared with some given password hash)
5155 or the new '-noverify' option is used.
5157 This is an incompatible change, but it does not affect
5158 non-interactive use of 'openssl passwd' (passwords on the command
5159 line, '-stdin' option, '-in ...' option) and thus should not
5163 *) Remove all references to RSAref, since there's no more need for it.
5166 *) Make DSO load along a path given through an environment variable
5167 (SHLIB_PATH) with shl_load().
5170 *) Constify the ENGINE code as a result of BIGNUM constification.
5171 Also constify the RSA code and most things related to it. In a
5172 few places, most notable in the depth of the ASN.1 code, ugly
5173 casts back to non-const were required (to be solved at a later
5177 *) Make it so the openssl application has all engines loaded by default.
5180 *) Constify the BIGNUM routines a little more.
5183 *) Add the following functions:
5185 ENGINE_load_cswift()
5187 ENGINE_load_atalla()
5189 ENGINE_load_builtin_engines()
5191 That way, an application can itself choose if external engines that
5192 are built-in in OpenSSL shall ever be used or not. The benefit is
5193 that applications won't have to be linked with libdl or other dso
5194 libraries unless it's really needed.
5196 Changed 'openssl engine' to load all engines on demand.
5197 Changed the engine header files to avoid the duplication of some
5198 declarations (they differed!).
5201 *) 'openssl engine' can now list capabilities.
5204 *) Better error reporting in 'openssl engine'.
5207 *) Never call load_dh_param(NULL) in s_server.
5210 *) Add engine application. It can currently list engines by name and
5211 identity, and test if they are actually available.
5214 *) Improve RPM specification file by forcing symbolic linking and making
5215 sure the installed documentation is also owned by root.root.
5216 [Damien Miller <djm@mindrot.org>]
5218 *) Give the OpenSSL applications more possibilities to make use of
5219 keys (public as well as private) handled by engines.
5222 *) Add OCSP code that comes from CertCo.
5225 *) Add VMS support for the Rijndael code.
5228 *) Added untested support for Nuron crypto accelerator.
5231 *) Add support for external cryptographic devices. This code was
5232 previously distributed separately as the "engine" branch.
5233 [Geoff Thorpe, Richard Levitte]
5235 *) Rework the filename-translation in the DSO code. It is now possible to
5236 have far greater control over how a "name" is turned into a filename
5237 depending on the operating environment and any oddities about the
5238 different shared library filenames on each system.
5241 *) Support threads on FreeBSD-elf in Configure.
5244 *) Fix for SHA1 assembly problem with MASM: it produces
5245 warnings about corrupt line number information when assembling
5246 with debugging information. This is caused by the overlapping
5248 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5251 NCONF_get_number() has no error checking at all. As a replacement,
5252 NCONF_get_number_e() is defined (_e for "error checking") and is
5253 promoted strongly. The old NCONF_get_number is kept around for
5254 binary backward compatibility.
5255 Make it possible for methods to load from something other than a BIO,
5256 by providing a function pointer that is given a name instead of a BIO.
5257 For example, this could be used to load configuration data from an
5261 *) Fix for non blocking accept BIOs. Added new I/O special reason
5262 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5263 with non blocking I/O was not possible because no retry code was
5264 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5268 *) Added the beginnings of Rijndael support.
5271 *) Fix for bug in DirectoryString mask setting. Add support for
5272 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5273 to allow certificate printing to more controllable, additional
5274 'certopt' option to 'x509' to allow new printing options to be
5278 *) Clean old EAY MD5 hack from e_os.h.
5281 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5283 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5284 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5285 [Joe Orton, Steve Henson]
5287 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5289 *) Fix additional bug revealed by the NISCC test suite:
5291 Stop bug triggering large recursion when presented with
5292 certain ASN.1 tags (CVE-2003-0851)
5295 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5297 *) Fix various bugs revealed by running the NISCC test suite:
5299 Stop out of bounds reads in the ASN1 code when presented with
5300 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5302 If verify callback ignores invalid public key errors don't try to check
5303 certificate signature with the NULL public key.
5307 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5308 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5312 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5313 extra data after the compression methods not only for TLS 1.0
5314 but also for SSL 3.0 (as required by the specification).
5315 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5317 *) Change X509_certificate_type() to mark the key as exported/exportable
5318 when it's 512 *bits* long, not 512 bytes.
5321 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5323 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5324 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5325 a protocol version number mismatch like a decryption error
5326 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5329 *) Turn on RSA blinding by default in the default implementation
5330 to avoid a timing attack. Applications that don't want it can call
5331 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5332 They would be ill-advised to do so in most cases.
5333 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5335 *) Change RSA blinding code so that it works when the PRNG is not
5336 seeded (in this case, the secret RSA exponent is abused as
5337 an unpredictable seed -- if it is not unpredictable, there
5338 is no point in blinding anyway). Make RSA blinding thread-safe
5339 by remembering the creator's thread ID in rsa->blinding and
5340 having all other threads use local one-time blinding factors
5341 (this requires more computation than sharing rsa->blinding, but
5342 avoids excessive locking; and if an RSA object is not shared
5343 between threads, blinding will still be very fast).
5346 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5348 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5349 via timing by performing a MAC computation even if incorrrect
5350 block cipher padding has been found. This is a countermeasure
5351 against active attacks where the attacker has to distinguish
5352 between bad padding and a MAC verification error. (CVE-2003-0078)
5354 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5355 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5356 Martin Vuagnoux (EPFL, Ilion)]
5358 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5360 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5361 memory from it's contents. This is done with a counter that will
5362 place alternating values in each byte. This can be used to solve
5363 two issues: 1) the removal of calls to memset() by highly optimizing
5364 compilers, and 2) cleansing with other values than 0, since those can
5365 be read through on certain media, for example a swap space on disk.
5368 *) Bugfix: client side session caching did not work with external caching,
5369 because the session->cipher setting was not restored when reloading
5370 from the external cache. This problem was masked, when
5371 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5372 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5375 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5376 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5377 [Zeev Lieber <zeev-l@yahoo.com>]
5379 *) Undo an undocumented change introduced in 0.9.6e which caused
5380 repeated calls to OpenSSL_add_all_ciphers() and
5381 OpenSSL_add_all_digests() to be ignored, even after calling
5385 *) Change the default configuration reader to deal with last line not
5386 being properly terminated.
5389 *) Change X509_NAME_cmp() so it applies the special rules on handling
5390 DN values that are of type PrintableString, as well as RDNs of type
5391 emailAddress where the value has the type ia5String.
5392 [stefank@valicert.com via Richard Levitte]
5394 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5395 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5396 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5397 the bitwise-OR of the two for use by the majority of applications
5398 wanting this behaviour, and update the docs. The documented
5399 behaviour and actual behaviour were inconsistent and had been
5400 changing anyway, so this is more a bug-fix than a behavioural
5402 [Geoff Thorpe, diagnosed by Nadav Har'El]
5404 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5405 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5408 *) Fix initialization code race conditions in
5409 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5410 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5411 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5412 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5413 ssl2_get_cipher_by_char(),
5414 ssl3_get_cipher_by_char().
5415 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5417 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5418 the cached sessions are flushed, as the remove_cb() might use ex_data
5419 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5420 (see [openssl.org #212]).
5421 [Geoff Thorpe, Lutz Jaenicke]
5423 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5424 length, instead of the encoding length to d2i_ASN1_OBJECT.
5427 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5429 *) [In 0.9.6g-engine release:]
5430 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5431 [Lynn Gazis <lgazis@rainbow.com>]
5433 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5435 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5436 and get fix the header length calculation.
5437 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5438 Alon Kantor <alonk@checkpoint.com> (and others),
5441 *) Use proper error handling instead of 'assertions' in buffer
5442 overflow checks added in 0.9.6e. This prevents DoS (the
5443 assertions could call abort()).
5444 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5446 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5448 *) Add various sanity checks to asn1_get_length() to reject
5449 the ASN1 length bytes if they exceed sizeof(long), will appear
5450 negative or the content length exceeds the length of the
5452 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5454 *) Fix cipher selection routines: ciphers without encryption had no flags
5455 for the cipher strength set and where therefore not handled correctly
5456 by the selection routines (PR #130).
5459 *) Fix EVP_dsa_sha macro.
5463 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5464 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5465 that was added in OpenSSL 0.9.6d.
5467 As the countermeasure turned out to be incompatible with some
5468 broken SSL implementations, the new option is part of SSL_OP_ALL.
5469 SSL_OP_ALL is usually employed when compatibility with weird SSL
5470 implementations is desired (e.g. '-bugs' option to 's_client' and
5471 's_server'), so the new option is automatically set in many
5475 *) Changes in security patch:
5477 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5478 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5479 Air Force Materiel Command, USAF, under agreement number
5482 *) Add various sanity checks to asn1_get_length() to reject
5483 the ASN1 length bytes if they exceed sizeof(long), will appear
5484 negative or the content length exceeds the length of the
5485 supplied buffer. (CVE-2002-0659)
5486 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5488 *) Assertions for various potential buffer overflows, not known to
5490 [Ben Laurie (CHATS)]
5492 *) Various temporary buffers to hold ASCII versions of integers were
5493 too small for 64 bit platforms. (CVE-2002-0655)
5494 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5496 *) Remote buffer overflow in SSL3 protocol - an attacker could
5497 supply an oversized session ID to a client. (CVE-2002-0656)
5498 [Ben Laurie (CHATS)]
5500 *) Remote buffer overflow in SSL2 protocol - an attacker could
5501 supply an oversized client master key. (CVE-2002-0656)
5502 [Ben Laurie (CHATS)]
5504 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5506 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5507 encoded as NULL) with id-dsa-with-sha1.
5508 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5510 *) Check various X509_...() return values in apps/req.c.
5511 [Nils Larsch <nla@trustcenter.de>]
5513 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5514 an end-of-file condition would erronously be flagged, when the CRLF
5515 was just at the end of a processed block. The bug was discovered when
5516 processing data through a buffering memory BIO handing the data to a
5517 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5518 <ptsekov@syntrex.com> and Nedelcho Stanev.
5521 *) Implement a countermeasure against a vulnerability recently found
5522 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5523 before application data chunks to avoid the use of known IVs
5524 with data potentially chosen by the attacker.
5527 *) Fix length checks in ssl3_get_client_hello().
5530 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5531 to prevent ssl3_read_internal() from incorrectly assuming that
5532 ssl3_read_bytes() found application data while handshake
5533 processing was enabled when in fact s->s3->in_read_app_data was
5534 merely automatically cleared during the initial handshake.
5535 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5537 *) Fix object definitions for Private and Enterprise: they were not
5538 recognized in their shortname (=lowercase) representation. Extend
5539 obj_dat.pl to issue an error when using undefined keywords instead
5540 of silently ignoring the problem (Svenning Sorensen
5541 <sss@sss.dnsalias.net>).
5544 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5545 generators, i.e. generators other than 2 and 5. (Previously, the
5546 code did not properly initialise the 'add' and 'rem' values to
5547 BN_generate_prime().)
5549 In the new general case, we do not insist that 'generator' is
5550 actually a primitive root: This requirement is rather pointless;
5551 a generator of the order-q subgroup is just as good, if not
5555 *) Map new X509 verification errors to alerts. Discovered and submitted by
5556 Tom Wu <tom@arcot.com>.
5559 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5560 returning non-zero before the data has been completely received
5561 when using non-blocking I/O.
5562 [Bodo Moeller; problem pointed out by John Hughes]
5564 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5565 [Ben Laurie, Lutz Jaenicke]
5567 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5568 Yoram Zahavi <YoramZ@gilian.com>).
5571 *) Add information about CygWin 1.3 and on, and preserve proper
5572 configuration for the versions before that.
5573 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5575 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5576 check whether we deal with a copy of a session and do not delete from
5577 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5578 <izhar@checkpoint.com>.
5581 *) Do not store session data into the internal session cache, if it
5582 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5583 flag is set). Proposed by Aslam <aslam@funk.com>.
5586 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5590 *) [In 0.9.6d-engine release:]
5591 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5592 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5594 *) Add the configuration target linux-s390x.
5595 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5597 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5598 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5599 variable as an indication that a ClientHello message has been
5600 received. As the flag value will be lost between multiple
5601 invocations of ssl3_accept when using non-blocking I/O, the
5602 function may not be aware that a handshake has actually taken
5603 place, thus preventing a new session from being added to the
5606 To avoid this problem, we now set s->new_session to 2 instead of
5607 using a local variable.
5608 [Lutz Jaenicke, Bodo Moeller]
5610 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5611 if the SSL_R_LENGTH_MISMATCH error is detected.
5612 [Geoff Thorpe, Bodo Moeller]
5614 *) New 'shared_ldflag' column in Configure platform table.
5617 *) Fix EVP_CIPHER_mode macro.
5618 ["Dan S. Camper" <dan@bti.net>]
5620 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5621 type, we must throw them away by setting rr->length to 0.
5622 [D P Chang <dpc@qualys.com>]
5624 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5626 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5627 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5628 worked incorrectly for those cases where range = 10..._2 and
5629 3*range is two bits longer than range.)
5632 *) Only add signing time to PKCS7 structures if it is not already
5636 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5637 OBJ_ld_ce should be OBJ_id_ce.
5638 Also some ip-pda OIDs in crypto/objects/objects.txt were
5639 incorrect (cf. RFC 3039).
5640 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5642 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5643 returns early because it has nothing to do.
5644 [Andy Schneider <andy.schneider@bjss.co.uk>]
5646 *) [In 0.9.6c-engine release:]
5647 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5648 [Andy Schneider <andy.schneider@bjss.co.uk>]
5650 *) [In 0.9.6c-engine release:]
5651 Add support for Cryptographic Appliance's keyserver technology.
5652 (Use engine 'keyclient')
5653 [Cryptographic Appliances and Geoff Thorpe]
5655 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5656 is called via tools/c89.sh because arguments have to be
5657 rearranged (all '-L' options must appear before the first object
5659 [Richard Shapiro <rshapiro@abinitio.com>]
5661 *) [In 0.9.6c-engine release:]
5662 Add support for Broadcom crypto accelerator cards, backported
5664 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5666 *) [In 0.9.6c-engine release:]
5667 Add support for SureWare crypto accelerator cards from
5668 Baltimore Technologies. (Use engine 'sureware')
5669 [Baltimore Technologies and Mark Cox]
5671 *) [In 0.9.6c-engine release:]
5672 Add support for crypto accelerator cards from Accelerated
5673 Encryption Processing, www.aep.ie. (Use engine 'aep')
5674 [AEP Inc. and Mark Cox]
5676 *) Add a configuration entry for gcc on UnixWare.
5677 [Gary Benson <gbenson@redhat.com>]
5679 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5680 messages are stored in a single piece (fixed-length part and
5681 variable-length part combined) and fix various bugs found on the way.
5684 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5685 instead. BIO_gethostbyname() does not know what timeouts are
5686 appropriate, so entries would stay in cache even when they have
5688 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5690 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5691 faced with a pathologically small ClientHello fragment that does
5692 not contain client_version: Instead of aborting with an error,
5693 simply choose the highest available protocol version (i.e.,
5694 TLS 1.0 unless it is disabled). In practice, ClientHello
5695 messages are never sent like this, but this change gives us
5696 strictly correct behaviour at least for TLS.
5699 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5700 never resets s->method to s->ctx->method when called from within
5701 one of the SSL handshake functions.
5702 [Bodo Moeller; problem pointed out by Niko Baric]
5704 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5705 (sent using the client's version number) if client_version is
5706 smaller than the protocol version in use. Also change
5707 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5708 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5709 the client will at least see that alert.
5712 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5716 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5717 client receives HelloRequest while in a handshake.
5718 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5720 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5721 should end in 'break', not 'goto end' which circuments various
5722 cleanups done in state SSL_ST_OK. But session related stuff
5723 must be disabled for SSL_ST_OK in the case that we just sent a
5726 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5727 before just sending a HelloRequest.
5728 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5730 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5731 reveal whether illegal block cipher padding was found or a MAC
5732 verification error occured. (Neither SSLerr() codes nor alerts
5733 are directly visible to potential attackers, but the information
5734 may leak via logfiles.)
5736 Similar changes are not required for the SSL 2.0 implementation
5737 because the number of padding bytes is sent in clear for SSL 2.0,
5738 and the extra bytes are just ignored. However ssl/s2_pkt.c
5739 failed to verify that the purported number of padding bytes is in
5743 *) Add OpenUNIX-8 support including shared libraries
5744 (Boyd Lynn Gerber <gerberb@zenez.com>).
5747 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5748 'wristwatch attack' using huge encoding parameters (cf.
5749 James H. Manger's CRYPTO 2001 paper). Note that the
5750 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5751 encoding parameters and hence was not vulnerable.
5754 *) BN_sqr() bug fix.
5755 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5757 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5758 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5759 followed by modular reduction.
5760 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5762 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5763 equivalent based on BN_pseudo_rand() instead of BN_rand().
5766 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5767 This function was broken, as the check for a new client hello message
5768 to handle SGC did not allow these large messages.
5769 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5772 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5775 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5776 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5779 *) Rework the configuration and shared library support for Tru64 Unix.
5780 The configuration part makes use of modern compiler features and
5781 still retains old compiler behavior for those that run older versions
5782 of the OS. The shared library support part includes a variant that
5783 uses the RPATH feature, and is available through the special
5784 configuration target "alpha-cc-rpath", which will never be selected
5786 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5788 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5789 with the same message size as in ssl3_get_certificate_request().
5790 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5791 messages might inadvertently be reject as too long.
5792 [Petr Lampa <lampa@fee.vutbr.cz>]
5794 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5797 *) Modified SSL library such that the verify_callback that has been set
5798 specificly for an SSL object with SSL_set_verify() is actually being
5799 used. Before the change, a verify_callback set with this function was
5800 ignored and the verify_callback() set in the SSL_CTX at the time of
5801 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5802 to allow the necessary settings.
5805 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5806 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5807 done automatically (in contradiction to the requirements of the C
5808 standard). This made problems when used from OpenSSH.
5811 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5812 dh->length and always used
5814 BN_rand_range(priv_key, dh->p).
5816 BN_rand_range() is not necessary for Diffie-Hellman, and this
5817 specific range makes Diffie-Hellman unnecessarily inefficient if
5818 dh->length (recommended exponent length) is much smaller than the
5819 length of dh->p. We could use BN_rand_range() if the order of
5820 the subgroup was stored in the DH structure, but we only have
5825 BN_rand(priv_key, l, ...)
5827 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5833 RSA_eay_public_encrypt
5834 RSA_eay_private_decrypt
5835 RSA_eay_private_encrypt (signing)
5836 RSA_eay_public_decrypt (signature verification)
5838 (default implementations for RSA_public_encrypt,
5839 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5840 always reject numbers >= n.
5843 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5844 to synchronize access to 'locking_thread'. This is necessary on
5845 systems where access to 'locking_thread' (an 'unsigned long'
5846 variable) is not atomic.
5849 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5850 *before* setting the 'crypto_lock_rand' flag. The previous code had
5851 a race condition if 0 is a valid thread ID.
5852 [Travis Vitek <vitek@roguewave.com>]
5854 *) Add support for shared libraries under Irix.
5855 [Albert Chin-A-Young <china@thewrittenword.com>]
5857 *) Add configuration option to build on Linux on both big-endian and
5859 [Ralf Baechle <ralf@uni-koblenz.de>]
5861 *) Add the possibility to create shared libraries on HP-UX.
5864 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5866 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5867 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5868 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5869 PRNG state recovery was possible based on the output of
5870 one PRNG request appropriately sized to gain knowledge on
5871 'md' followed by enough consecutive 1-byte PRNG requests
5872 to traverse all of 'state'.
5874 1. When updating 'md_local' (the current thread's copy of 'md')
5875 during PRNG output generation, hash all of the previous
5876 'md_local' value, not just the half used for PRNG output.
5878 2. Make the number of bytes from 'state' included into the hash
5879 independent from the number of PRNG bytes requested.
5881 The first measure alone would be sufficient to avoid
5882 Markku-Juhani's attack. (Actually it had never occurred
5883 to me that the half of 'md_local' used for chaining was the
5884 half from which PRNG output bytes were taken -- I had always
5885 assumed that the secret half would be used.) The second
5886 measure makes sure that additional data from 'state' is never
5887 mixed into 'md_local' in small portions; this heuristically
5888 further strengthens the PRNG.
5891 *) Fix crypto/bn/asm/mips3.s.
5894 *) When only the key is given to "enc", the IV is undefined. Print out
5895 an error message in this case.
5898 *) Handle special case when X509_NAME is empty in X509 printing routines.
5901 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5902 positive and less than q.
5905 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5906 used: it isn't thread safe and the add_lock_callback should handle
5908 [Paul Rose <Paul.Rose@bridge.com>]
5910 *) Verify that incoming data obeys the block size in
5911 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5915 [Ulf Möller, Bodo Möller]
5917 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5918 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5919 when fixing the server behaviour for backwards-compatible 'client
5920 hello' messages. (Note that the attack is impractical against
5921 SSL 3.0 and TLS 1.0 anyway because length and version checking
5922 means that the probability of guessing a valid ciphertext is
5923 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5926 Before 0.9.5, the countermeasure (hide the error by generating a
5927 random 'decryption result') did not work properly because
5928 ERR_clear_error() was missing, meaning that SSL_get_error() would
5929 detect the supposedly ignored error.
5931 Both problems are now fixed.
5934 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5935 (previously it was 1024).
5938 *) Fix for compatibility mode trust settings: ignore trust settings
5939 unless some valid trust or reject settings are present.
5942 *) Fix for blowfish EVP: its a variable length cipher.
5945 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5946 parameters in DSA public key structures and return an error in the
5947 DSA routines if parameters are absent.
5950 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5951 in the current directory if neither $RANDFILE nor $HOME was set.
5952 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5953 caused some confusion to Windows users who haven't defined $HOME.
5954 Thus RAND_file_name() is changed again: e_os.h can define a
5955 DEFAULT_HOME, which will be used if $HOME is not set.
5956 For Windows, we use "C:"; on other platforms, we still require
5957 environment variables.
5959 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5960 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5961 having multiple threads call RAND_poll() concurrently.
5964 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5965 combination of a flag and a thread ID variable.
5966 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5967 flag), *other* threads can enter ssleay_add_bytes without obeying
5968 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5969 that they do not hold after the first thread unsets add_do_not_lock).
5972 *) Change bctest again: '-x' expressions are not available in all
5976 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5978 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5979 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5981 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5982 the default extension for executables, if any. Also, make the perl
5983 scripts that use symlink() to test if it really exists and use "cp"
5984 if it doesn't. All this made OpenSSL compilable and installable in
5988 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5989 If SEQUENCE is length is indefinite just set c->slen to the total
5990 amount of data available.
5991 [Steve Henson, reported by shige@FreeBSD.org]
5992 [This change does not apply to 0.9.7.]
5994 *) Change bctest to avoid here-documents inside command substitution
5995 (workaround for FreeBSD /bin/sh bug).
5996 For compatibility with Ultrix, avoid shell functions (introduced
5997 in the bctest version that searches along $PATH).
6000 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6001 with des_encrypt() defined on some operating systems, like Solaris
6005 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6006 On the Importance of Eliminating Errors in Cryptographic
6007 Computations, J. Cryptology 14 (2001) 2, 101-119,
6008 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6011 *) MIPS assembler BIGNUM division bug fix.
6014 *) Disabled incorrect Alpha assembler code.
6017 *) Fix PKCS#7 decode routines so they correctly update the length
6018 after reading an EOC for the EXPLICIT tag.
6020 [This change does not apply to 0.9.7.]
6022 *) Fix bug in PKCS#12 key generation routines. This was triggered
6023 if a 3DES key was generated with a 0 initial byte. Include
6024 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6025 (but broken) behaviour.
6028 *) Enhance bctest to search for a working bc along $PATH and print
6030 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6032 *) Fix memory leaks in err.c: free err_data string if necessary;
6033 don't write to the wrong index in ERR_set_error_data.
6036 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6040 *) Replace rdtsc with _emit statements for VC++ version 5.
6041 [Jeremy Cooper <jeremy@baymoo.org>]
6043 *) Make it possible to reuse SSLv2 sessions.
6046 *) In copy_email() check for >= 0 as a return value for
6047 X509_NAME_get_index_by_NID() since 0 is a valid index.
6048 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6050 *) Avoid coredump with unsupported or invalid public keys by checking if
6051 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6052 PKCS7_verify() fails with non detached data.
6055 *) Don't use getenv in library functions when run as setuid/setgid.
6056 New function OPENSSL_issetugid().
6059 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6060 due to incorrect handling of multi-threading:
6062 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6064 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6066 3. Count how many times MemCheck_off() has been called so that
6067 nested use can be treated correctly. This also avoids
6068 inband-signalling in the previous code (which relied on the
6069 assumption that thread ID 0 is impossible).
6072 *) Add "-rand" option also to s_client and s_server.
6075 *) Fix CPU detection on Irix 6.x.
6076 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6077 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6079 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6082 [This change does not apply to 0.9.7.]
6084 *) Use the cached encoding of an X509_NAME structure rather than
6085 copying it. This is apparently the reason for the libsafe "errors"
6086 but the code is actually correct.
6089 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6090 Bleichenbacher's DSA attack.
6091 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6092 to be set and top=0 forces the highest bit to be set; top=-1 is new
6093 and leaves the highest bit random.
6094 [Ulf Moeller, Bodo Moeller]
6096 *) In the NCONF_...-based implementations for CONF_... queries
6097 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6098 a temporary CONF structure with the data component set to NULL
6099 (which gives segmentation faults in lh_retrieve).
6100 Instead, use NULL for the CONF pointer in CONF_get_string and
6101 CONF_get_number (which may use environment variables) and directly
6102 return NULL from CONF_get_section.
6105 *) Fix potential buffer overrun for EBCDIC.
6108 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6109 keyUsage if basicConstraints absent for a CA.
6112 *) Make SMIME_write_PKCS7() write mail header values with a format that
6113 is more generally accepted (no spaces before the semicolon), since
6114 some programs can't parse those values properly otherwise. Also make
6115 sure BIO's that break lines after each write do not create invalid
6119 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6120 macros previously used would not encode an empty SEQUENCE OF
6121 and break the signature.
6123 [This change does not apply to 0.9.7.]
6125 *) Zero the premaster secret after deriving the master secret in
6129 *) Add some EVP_add_digest_alias registrations (as found in
6130 OpenSSL_add_all_digests()) to SSL_library_init()
6131 aka OpenSSL_add_ssl_algorithms(). This provides improved
6132 compatibility with peers using X.509 certificates
6133 with unconventional AlgorithmIdentifier OIDs.
6136 *) Fix for Irix with NO_ASM.
6137 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6139 *) ./config script fixes.
6140 [Ulf Moeller, Richard Levitte]
6142 *) Fix 'openssl passwd -1'.
6145 *) Change PKCS12_key_gen_asc() so it can cope with non null
6146 terminated strings whose length is passed in the passlen
6147 parameter, for example from PEM callbacks. This was done
6148 by adding an extra length parameter to asc2uni().
6149 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6151 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6152 call failed, free the DSA structure.
6155 *) Fix to uni2asc() to cope with zero length Unicode strings.
6156 These are present in some PKCS#12 files.
6159 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6160 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6161 when writing a 32767 byte record.
6162 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6164 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6165 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6167 (RSA objects have a reference count access to which is protected
6168 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6169 so they are meant to be shared between threads.)
6170 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6171 "Reddie, Steven" <Steven.Reddie@ca.com>]
6173 *) Fix a deadlock in CRYPTO_mem_leaks().
6176 *) Use better test patterns in bntest.
6179 *) rand_win.c fix for Borland C.
6182 *) BN_rshift bugfix for n == 0.
6185 *) Add a 'bctest' script that checks for some known 'bc' bugs
6186 so that 'make test' does not abort just because 'bc' is broken.
6189 *) Store verify_result within SSL_SESSION also for client side to
6190 avoid potential security hole. (Re-used sessions on the client side
6191 always resulted in verify_result==X509_V_OK, not using the original
6192 result of the server certificate verification.)
6195 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6196 SSL3_RT_APPLICATION_DATA, return 0.
6197 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6201 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6202 releases, have been re-implemented by renaming the previous
6203 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6204 and ssl3_read_internal, respectively, and adding 'peek' parameters
6205 to them. The new ssl[23]_{read,peek} functions are calls to
6206 ssl[23]_read_internal with the 'peek' flag set appropriately.
6207 A 'peek' parameter has also been added to ssl3_read_bytes, which
6208 does the actual work for ssl3_read_internal.
6211 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6212 the method-specific "init()" handler. Also clean up ex_data after
6213 calling the method-specific "finish()" handler. Previously, this was
6214 happening the other way round.
6217 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6218 The previous value, 12, was not always sufficient for BN_mod_exp().
6221 *) Make sure that shared libraries get the internal name engine with
6222 the full version number and not just 0. This should mark the
6223 shared libraries as not backward compatible. Of course, this should
6224 be changed again when we can guarantee backward binary compatibility.
6227 *) Fix typo in get_cert_by_subject() in by_dir.c
6228 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6230 *) Rework the system to generate shared libraries:
6232 - Make note of the expected extension for the shared libraries and
6233 if there is a need for symbolic links from for example libcrypto.so.0
6234 to libcrypto.so.0.9.7. There is extended info in Configure for
6237 - Make as few rebuilds of the shared libraries as possible.
6239 - Still avoid linking the OpenSSL programs with the shared libraries.
6241 - When installing, install the shared libraries separately from the
6245 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6247 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6248 and not in SSL_clear because the latter is also used by the
6249 accept/connect functions; previously, the settings made by
6250 SSL_set_read_ahead would be lost during the handshake.
6251 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6253 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6254 Previously, it would create entries for disableed algorithms no
6258 *) Added several new manual pages for SSL_* function.
6261 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6263 *) In ssl23_get_client_hello, generate an error message when faced
6264 with an initial SSL 3.0/TLS record that is too small to contain the
6265 first two bytes of the ClientHello message, i.e. client_version.
6266 (Note that this is a pathologic case that probably has never happened
6267 in real life.) The previous approach was to use the version number
6268 from the record header as a substitute; but our protocol choice
6269 should not depend on that one because it is not authenticated
6270 by the Finished messages.
6273 *) More robust randomness gathering functions for Windows.
6274 [Jeffrey Altman <jaltman@columbia.edu>]
6276 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6277 not set then we don't setup the error code for issuer check errors
6278 to avoid possibly overwriting other errors which the callback does
6279 handle. If an application does set the flag then we assume it knows
6280 what it is doing and can handle the new informational codes
6284 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6285 a general "ANY" type, as such it should be able to decode anything
6286 including tagged types. However it didn't check the class so it would
6287 wrongly interpret tagged types in the same way as their universal
6288 counterpart and unknown types were just rejected. Changed so that the
6289 tagged and unknown types are handled in the same way as a SEQUENCE:
6290 that is the encoding is stored intact. There is also a new type
6291 "V_ASN1_OTHER" which is used when the class is not universal, in this
6292 case we have no idea what the actual type is so we just lump them all
6296 *) On VMS, stdout may very well lead to a file that is written to
6297 in a record-oriented fashion. That means that every write() will
6298 write a separate record, which will be read separately by the
6299 programs trying to read from it. This can be very confusing.
6301 The solution is to put a BIO filter in the way that will buffer
6302 text until a linefeed is reached, and then write everything a
6303 line at a time, so every record written will be an actual line,
6304 not chunks of lines and not (usually doesn't happen, but I've
6305 seen it once) several lines in one record. BIO_f_linebuffer() is
6308 Currently, it's a VMS-only method, because that's where it has
6309 been tested well enough.
6312 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6313 it can return incorrect results.
6314 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6315 but it was in 0.9.6-beta[12].)
6318 *) Disable the check for content being present when verifying detached
6319 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6320 include zero length content when signing messages.
6323 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6324 BIO_ctrl (for BIO pairs).
6327 *) Add DSO method for VMS.
6330 *) Bug fix: Montgomery multiplication could produce results with the
6334 *) Add RPM specification openssl.spec and modify it to build three
6335 packages. The default package contains applications, application
6336 documentation and run-time libraries. The devel package contains
6337 include files, static libraries and function documentation. The
6338 doc package contains the contents of the doc directory. The original
6339 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6342 *) Add a large number of documentation files for many SSL routines.
6343 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6345 *) Add a configuration entry for Sony News 4.
6346 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6348 *) Don't set the two most significant bits to one when generating a
6349 random number < q in the DSA library.
6352 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6353 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6354 the underlying transport is blocking) if a handshake took place.
6355 (The default behaviour is needed by applications such as s_client
6356 and s_server that use select() to determine when to use SSL_read;
6357 but for applications that know in advance when to expect data, it
6358 just makes things more complicated.)
6361 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6365 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6366 work better on such systems.
6367 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6369 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6370 Update PKCS12_parse() so it copies the friendlyName and the
6371 keyid to the certificates aux info.
6374 *) Fix bug in PKCS7_verify() which caused an infinite loop
6375 if there was more than one signature.
6376 [Sven Uszpelkat <su@celocom.de>]
6378 *) Major change in util/mkdef.pl to include extra information
6379 about each symbol, as well as presentig variables as well
6380 as functions. This change means that there's n more need
6381 to rebuild the .num files when some algorithms are excluded.
6384 *) Allow the verify time to be set by an application,
6385 rather than always using the current time.
6388 *) Phase 2 verify code reorganisation. The certificate
6389 verify code now looks up an issuer certificate by a
6390 number of criteria: subject name, authority key id
6391 and key usage. It also verifies self signed certificates
6392 by the same criteria. The main comparison function is
6393 X509_check_issued() which performs these checks.
6395 Lot of changes were necessary in order to support this
6396 without completely rewriting the lookup code.
6398 Authority and subject key identifier are now cached.
6400 The LHASH 'certs' is X509_STORE has now been replaced
6401 by a STACK_OF(X509_OBJECT). This is mainly because an
6402 LHASH can't store or retrieve multiple objects with
6403 the same hash value.
6405 As a result various functions (which were all internal
6406 use only) have changed to handle the new X509_STORE
6407 structure. This will break anything that messed round
6408 with X509_STORE internally.
6410 The functions X509_STORE_add_cert() now checks for an
6411 exact match, rather than just subject name.
6413 The X509_STORE API doesn't directly support the retrieval
6414 of multiple certificates matching a given criteria, however
6415 this can be worked round by performing a lookup first
6416 (which will fill the cache with candidate certificates)
6417 and then examining the cache for matches. This is probably
6418 the best we can do without throwing out X509_LOOKUP
6419 entirely (maybe later...).
6421 The X509_VERIFY_CTX structure has been enhanced considerably.
6423 All certificate lookup operations now go via a get_issuer()
6424 callback. Although this currently uses an X509_STORE it
6425 can be replaced by custom lookups. This is a simple way
6426 to bypass the X509_STORE hackery necessary to make this
6427 work and makes it possible to use more efficient techniques
6428 in future. A very simple version which uses a simple
6429 STACK for its trusted certificate store is also provided
6430 using X509_STORE_CTX_trusted_stack().
6432 The verify_cb() and verify() callbacks now have equivalents
6433 in the X509_STORE_CTX structure.
6435 X509_STORE_CTX also has a 'flags' field which can be used
6436 to customise the verify behaviour.
6439 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6440 excludes S/MIME capabilities.
6443 *) When a certificate request is read in keep a copy of the
6444 original encoding of the signed data and use it when outputing
6445 again. Signatures then use the original encoding rather than
6446 a decoded, encoded version which may cause problems if the
6447 request is improperly encoded.
6450 *) For consistency with other BIO_puts implementations, call
6451 buffer_write(b, ...) directly in buffer_puts instead of calling
6454 In BIO_puts, increment b->num_write as in BIO_write.
6455 [Peter.Sylvester@EdelWeb.fr]
6457 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6458 BN_zero, we may not return a BIGNUM with an array consisting of
6462 *) Avoid calling abort() from within the library when problems are
6463 detected, except if preprocessor symbols have been defined
6464 (such as REF_CHECK, BN_DEBUG etc.).
6467 *) New openssl application 'rsautl'. This utility can be
6468 used for low level RSA operations. DER public key
6469 BIO/fp routines also added.
6472 *) New Configure entry and patches for compiling on QNX 4.
6473 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6475 *) A demo state-machine implementation was sponsored by
6476 Nuron (http://www.nuron.com/) and is now available in
6477 demos/state_machine.
6480 *) New options added to the 'dgst' utility for signature
6481 generation and verification.
6484 *) Unrecognized PKCS#7 content types are now handled via a
6485 catch all ASN1_TYPE structure. This allows unsupported
6486 types to be stored as a "blob" and an application can
6487 encode and decode it manually.
6490 *) Fix various signed/unsigned issues to make a_strex.c
6492 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6494 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6495 length if passed a buffer. ASN1_INTEGER_to_BN failed
6496 if passed a NULL BN and its argument was negative.
6497 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6499 *) Modification to PKCS#7 encoding routines to output definite
6500 length encoding. Since currently the whole structures are in
6501 memory there's not real point in using indefinite length
6502 constructed encoding. However if OpenSSL is compiled with
6503 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6506 *) Added BIO_vprintf() and BIO_vsnprintf().
6509 *) Added more prefixes to parse for in the the strings written
6510 through a logging bio, to cover all the levels that are available
6511 through syslog. The prefixes are now:
6513 PANIC, EMERG, EMR => LOG_EMERG
6514 ALERT, ALR => LOG_ALERT
6515 CRIT, CRI => LOG_CRIT
6516 ERROR, ERR => LOG_ERR
6517 WARNING, WARN, WAR => LOG_WARNING
6518 NOTICE, NOTE, NOT => LOG_NOTICE
6519 INFO, INF => LOG_INFO
6520 DEBUG, DBG => LOG_DEBUG
6522 and as before, if none of those prefixes are present at the
6523 beginning of the string, LOG_ERR is chosen.
6525 On Win32, the LOG_* levels are mapped according to this:
6527 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6528 LOG_WARNING => EVENTLOG_WARNING_TYPE
6529 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6533 *) Made it possible to reconfigure with just the configuration
6534 argument "reconf" or "reconfigure". The command line arguments
6535 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6536 and are retrieved from there when reconfiguring.
6540 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6542 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6545 *) The obj_dat.pl script was messing up the sorting of object
6546 names. The reason was that it compared the quoted version
6547 of strings as a result "OCSP" > "OCSP Signing" because
6548 " > SPACE. Changed script to store unquoted versions of
6549 names and add quotes on output. It was also omitting some
6550 names from the lookup table if they were given a default
6551 value (that is if SN is missing it is given the same
6552 value as LN and vice versa), these are now added on the
6553 grounds that if an object has a name we should be able to
6554 look it up. Finally added warning output when duplicate
6555 short or long names are found.
6558 *) Changes needed for Tandem NSK.
6559 [Scott Uroff <scott@xypro.com>]
6561 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6562 RSA_padding_check_SSLv23(), special padding was never detected
6563 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6564 version rollback attacks was not effective.
6566 In s23_clnt.c, don't use special rollback-attack detection padding
6567 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6568 client; similarly, in s23_srvr.c, don't do the rollback check if
6569 SSL 2.0 is the only protocol enabled in the server.
6572 *) Make it possible to get hexdumps of unprintable data with 'openssl
6573 asn1parse'. By implication, the functions ASN1_parse_dump() and
6574 BIO_dump_indent() are added.
6577 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6578 these print out strings and name structures based on various
6579 flags including RFC2253 support and proper handling of
6580 multibyte characters. Added options to the 'x509' utility
6581 to allow the various flags to be set.
6584 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6585 Also change the functions X509_cmp_current_time() and
6586 X509_gmtime_adj() work with an ASN1_TIME structure,
6587 this will enable certificates using GeneralizedTime in validity
6588 dates to be checked.
6591 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6592 negative public key encodings) on by default,
6593 NO_NEG_PUBKEY_BUG can be set to disable it.
6596 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6597 content octets. An i2c_ASN1_OBJECT is unnecessary because
6598 the encoding can be trivially obtained from the structure.
6601 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6602 not read locks (CRYPTO_r_[un]lock).
6605 *) A first attempt at creating official support for shared
6606 libraries through configuration. I've kept it so the
6607 default is static libraries only, and the OpenSSL programs
6608 are always statically linked for now, but there are
6609 preparations for dynamic linking in place.
6610 This has been tested on Linux and Tru64.
6613 *) Randomness polling function for Win9x, as described in:
6614 Peter Gutmann, Software Generation of Practically Strong
6618 *) Fix so PRNG is seeded in req if using an already existing
6622 *) New options to smime application. -inform and -outform
6623 allow alternative formats for the S/MIME message including
6624 PEM and DER. The -content option allows the content to be
6625 specified separately. This should allow things like Netscape
6626 form signing output easier to verify.
6629 *) Fix the ASN1 encoding of tags using the 'long form'.
6632 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6633 STRING types. These convert content octets to and from the
6634 underlying type. The actual tag and length octets are
6635 already assumed to have been read in and checked. These
6636 are needed because all other string types have virtually
6637 identical handling apart from the tag. By having versions
6638 of the ASN1 functions that just operate on content octets
6639 IMPLICIT tagging can be handled properly. It also allows
6640 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6641 and ASN1_INTEGER are identical apart from the tag.
6644 *) Change the handling of OID objects as follows:
6646 - New object identifiers are inserted in objects.txt, following
6647 the syntax given in objects.README.
6648 - objects.pl is used to process obj_mac.num and create a new
6650 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6653 This is currently kind of a hack, and the perl code in objects.pl
6654 isn't very elegant, but it works as I intended. The simplest way
6655 to check that it worked correctly is to look in obj_dat.h and
6656 check the array nid_objs and make sure the objects haven't moved
6657 around (this is important!). Additions are OK, as well as
6658 consistent name changes.
6661 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6664 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6665 The given file adds to whatever has already been seeded into the
6666 random pool through the RANDFILE configuration file option or
6667 environment variable, or the default random state file.
6670 *) mkstack.pl now sorts each macro group into lexical order.
6671 Previously the output order depended on the order the files
6672 appeared in the directory, resulting in needless rewriting
6676 *) Patches to make OpenSSL compile under Win32 again. Mostly
6677 work arounds for the VC++ problem that it treats func() as
6678 func(void). Also stripped out the parts of mkdef.pl that
6679 added extra typesafe functions: these no longer exist.
6682 *) Reorganisation of the stack code. The macros are now all
6683 collected in safestack.h . Each macro is defined in terms of
6684 a "stack macro" of the form SKM_<name>(type, a, b). The
6685 DEBUG_SAFESTACK is now handled in terms of function casts,
6686 this has the advantage of retaining type safety without the
6687 use of additional functions. If DEBUG_SAFESTACK is not defined
6688 then the non typesafe macros are used instead. Also modified the
6689 mkstack.pl script to handle the new form. Needs testing to see
6690 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6691 the default if no major problems. Similar behaviour for ASN1_SET_OF
6692 and PKCS12_STACK_OF.
6695 *) When some versions of IIS use the 'NET' form of private key the
6696 key derivation algorithm is different. Normally MD5(password) is
6697 used as a 128 bit RC4 key. In the modified case
6698 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6699 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6700 as the old Netscape_RSA functions except they have an additional
6701 'sgckey' parameter which uses the modified algorithm. Also added
6702 an -sgckey command line option to the rsa utility. Thanks to
6703 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6704 algorithm to openssl-dev.
6707 *) The evp_local.h macros were using 'c.##kname' which resulted in
6708 invalid expansion on some systems (SCO 5.0.5 for example).
6709 Corrected to 'c.kname'.
6710 [Phillip Porch <root@theporch.com>]
6712 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6713 a STACK of email addresses from a certificate or request, these look
6714 in the subject name and the subject alternative name extensions and
6715 omit any duplicate addresses.
6718 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6719 This makes DSA verification about 2 % faster.
6722 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6723 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6724 plus overhead for 1024 bit moduli).
6725 This makes exponentiations about 0.5 % faster for 1024 bit
6726 exponents (as measured by "openssl speed rsa2048").
6729 *) Rename memory handling macros to avoid conflicts with other
6731 Malloc => OPENSSL_malloc
6732 Malloc_locked => OPENSSL_malloc_locked
6733 Realloc => OPENSSL_realloc
6734 Free => OPENSSL_free
6737 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6738 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6741 *) CygWin32 support.
6742 [John Jarvie <jjarvie@newsguy.com>]
6744 *) The type-safe stack code has been rejigged. It is now only compiled
6745 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6746 by default all type-specific stack functions are "#define"d back to
6747 standard stack functions. This results in more streamlined output
6748 but retains the type-safety checking possibilities of the original
6752 *) The STACK code has been cleaned up, and certain type declarations
6753 that didn't make a lot of sense have been brought in line. This has
6754 also involved a cleanup of sorts in safestack.h to more correctly
6755 map type-safe stack functions onto their plain stack counterparts.
6756 This work has also resulted in a variety of "const"ifications of
6757 lots of the code, especially "_cmp" operations which should normally
6758 be prototyped with "const" parameters anyway.
6761 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6762 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6763 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6764 where all of 'md' is used each time the PRNG is used, but 'state'
6765 is used only indexed by a cyclic counter. As entropy may not be
6766 well distributed from the beginning, 'md' is important as a
6767 chaining variable. However, the output function chains only half
6768 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6769 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6770 in all of 'state' being rewritten, with the new values depending
6771 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6774 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6775 the handshake is continued after ssl_verify_cert_chain();
6776 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6777 can lead to 'unexplainable' connection aborts later.
6778 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6780 *) Major EVP API cipher revision.
6781 Add hooks for extra EVP features. This allows various cipher
6782 parameters to be set in the EVP interface. Support added for variable
6783 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6784 setting of RC2 and RC5 parameters.
6786 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6789 Remove lots of duplicated code from the EVP library. For example *every*
6790 cipher init() function handles the 'iv' in the same way according to the
6791 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6792 for CFB and OFB modes they zero ctx->num.
6794 New functionality allows removal of S/MIME code RC2 hack.
6796 Most of the routines have the same form and so can be declared in terms
6799 By shifting this to the top level EVP_CipherInit() it can be removed from
6800 all individual ciphers. If the cipher wants to handle IVs or keys
6801 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6804 Change lots of functions like EVP_EncryptUpdate() to now return a
6805 value: although software versions of the algorithms cannot fail
6806 any installed hardware versions can.
6809 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6810 this option is set, tolerate broken clients that send the negotiated
6811 protocol version number instead of the requested protocol version
6815 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6816 i.e. non-zero for export ciphersuites, zero otherwise.
6817 Previous versions had this flag inverted, inconsistent with
6818 rsa_tmp_cb (..._TMP_RSA_CB).
6819 [Bodo Moeller; problem reported by Amit Chopra]
6821 *) Add missing DSA library text string. Work around for some IIS
6822 key files with invalid SEQUENCE encoding.
6825 *) Add a document (doc/standards.txt) that list all kinds of standards
6826 and so on that are implemented in OpenSSL.
6829 *) Enhance c_rehash script. Old version would mishandle certificates
6830 with the same subject name hash and wouldn't handle CRLs at all.
6831 Added -fingerprint option to crl utility, to support new c_rehash
6835 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6838 *) Fix for SSL server purpose checking. Server checking was
6839 rejecting certificates which had extended key usage present
6840 but no ssl client purpose.
6841 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6843 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6844 is a little unclear about how a blank password is handled.
6845 Since the password in encoded as a BMPString with terminating
6846 double NULL a zero length password would end up as just the
6847 double NULL. However no password at all is different and is
6848 handled differently in the PKCS#12 key generation code. NS
6849 treats a blank password as zero length. MSIE treats it as no
6850 password on export: but it will try both on import. We now do
6851 the same: PKCS12_parse() tries zero length and no password if
6852 the password is set to "" or NULL (NULL is now a valid password:
6853 it wasn't before) as does the pkcs12 application.
6856 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6857 perror when PEM_read_bio_X509_REQ fails, the error message must
6858 be obtained from the error queue.
6861 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6862 it in ERR_remove_state if appropriate, and change ERR_get_state
6863 accordingly to avoid race conditions (this is necessary because
6864 thread_hash is no longer constant once set).
6867 *) Bugfix for linux-elf makefile.one.
6870 *) RSA_get_default_method() will now cause a default
6871 RSA_METHOD to be chosen if one doesn't exist already.
6872 Previously this was only set during a call to RSA_new()
6873 or RSA_new_method(NULL) meaning it was possible for
6874 RSA_get_default_method() to return NULL.
6877 *) Added native name translation to the existing DSO code
6878 that will convert (if the flag to do so is set) filenames
6879 that are sufficiently small and have no path information
6880 into a canonical native form. Eg. "blah" converted to
6881 "libblah.so" or "blah.dll" etc.
6884 *) New function ERR_error_string_n(e, buf, len) which is like
6885 ERR_error_string(e, buf), but writes at most 'len' bytes
6886 including the 0 terminator. For ERR_error_string_n, 'buf'
6888 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6890 *) CONF library reworked to become more general. A new CONF
6891 configuration file reader "class" is implemented as well as a
6892 new functions (NCONF_*, for "New CONF") to handle it. The now
6893 old CONF_* functions are still there, but are reimplemented to
6894 work in terms of the new functions. Also, a set of functions
6895 to handle the internal storage of the configuration data is
6896 provided to make it easier to write new configuration file
6897 reader "classes" (I can definitely see something reading a
6898 configuration file in XML format, for example), called _CONF_*,
6899 or "the configuration storage API"...
6901 The new configuration file reading functions are:
6903 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6904 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6906 NCONF_default, NCONF_WIN32
6908 NCONF_dump_fp, NCONF_dump_bio
6910 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6911 NCONF_new creates a new CONF object. This works in the same way
6912 as other interfaces in OpenSSL, like the BIO interface.
6913 NCONF_dump_* dump the internal storage of the configuration file,
6914 which is useful for debugging. All other functions take the same
6915 arguments as the old CONF_* functions wth the exception of the
6916 first that must be a `CONF *' instead of a `LHASH *'.
6918 To make it easer to use the new classes with the old CONF_* functions,
6919 the function CONF_set_default_method is provided.
6922 *) Add '-tls1' option to 'openssl ciphers', which was already
6923 mentioned in the documentation but had not been implemented.
6924 (This option is not yet really useful because even the additional
6925 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6928 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6929 OpenSSL-based applications) load shared libraries and bind to
6930 them in a portable way.
6931 [Geoff Thorpe, with contributions from Richard Levitte]
6933 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6935 *) Make sure _lrotl and _lrotr are only used with MSVC.
6937 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6938 (the default implementation of RAND_status).
6940 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6941 to '-clrext' (= clear extensions), as intended and documented.
6942 [Bodo Moeller; inconsistency pointed out by Michael Attili
6945 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6946 was larger than the MD block size.
6947 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6949 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6950 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6951 using the passed key: if the passed key was a private key the result
6952 of X509_print(), for example, would be to print out all the private key
6956 *) des_quad_cksum() byte order bug fix.
6957 [Ulf Möller, using the problem description in krb4-0.9.7, where
6958 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6960 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6962 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6964 *) For easily testing in shell scripts whether some command
6965 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6966 returns with exit code 0 iff no command of the given name is available.
6967 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6968 the output goes to stdout and nothing is printed to stderr.
6969 Additional arguments are always ignored.
6971 Since for each cipher there is a command of the same name,
6972 the 'no-cipher' compilation switches can be tested this way.
6974 ('openssl no-XXX' is not able to detect pseudo-commands such
6975 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6978 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6981 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6982 is set; it will be thrown away anyway because each handshake creates
6984 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6985 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6986 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6987 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6990 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6991 'Q' and 'R' lose their special meanings (quit/renegotiate).
6992 This is part of what -quiet does; unlike -quiet, -ign_eof
6993 does not suppress any output.
6996 *) Add compatibility options to the purpose and trust code. The
6997 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6998 accepts a certificate or CA, this was the previous behaviour,
6999 with all the associated security issues.
7001 X509_TRUST_COMPAT is the old trust behaviour: only and
7002 automatically trust self signed roots in certificate store. A
7003 new trust setting X509_TRUST_DEFAULT is used to specify that
7004 a purpose has no associated trust setting and it should instead
7005 use the value in the default purpose.
7008 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7009 and fix a memory leak.
7012 *) In util/mkerr.pl (which implements 'make errors'), preserve
7013 reason strings from the previous version of the .c file, as
7014 the default to have only downcase letters (and digits) in
7015 automatically generated reasons codes is not always appropriate.
7018 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7019 using strerror. Previously, ERR_reason_error_string() returned
7020 library names as reason strings for SYSerr; but SYSerr is a special
7021 case where small numbers are errno values, not library numbers.
7024 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7025 converts DSA parameters into DH parameters. (When creating parameters,
7026 DSA_generate_parameters is used.)
7029 *) Include 'length' (recommended exponent length) in C code generated
7030 by 'openssl dhparam -C'.
7033 *) The second argument to set_label in perlasm was already being used
7034 so couldn't be used as a "file scope" flag. Moved to third argument
7038 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7039 instead of RAND_bytes for encryption IVs and salts.
7042 *) Include RAND_status() into RAND_METHOD instead of implementing
7043 it only for md_rand.c Otherwise replacing the PRNG by calling
7044 RAND_set_rand_method would be impossible.
7047 *) Don't let DSA_generate_key() enter an infinite loop if the random
7048 number generation fails.
7051 *) New 'rand' application for creating pseudo-random output.
7054 *) Added configuration support for Linux/IA64
7055 [Rolf Haberrecker <rolf@suse.de>]
7057 *) Assembler module support for Mingw32.
7060 *) Shared library support for HPUX (in shlib/).
7061 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7063 *) Shared library support for Solaris gcc.
7064 [Lutz Behnke <behnke@trustcenter.de>]
7066 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7068 *) PKCS7_encrypt() was adding text MIME headers twice because they
7069 were added manually and by SMIME_crlf_copy().
7072 *) In bntest.c don't call BN_rand with zero bits argument.
7073 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7075 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7076 case was implemented. This caused BN_div_recp() to fail occasionally.
7079 *) Add an optional second argument to the set_label() in the perl
7080 assembly language builder. If this argument exists and is set
7081 to 1 it signals that the assembler should use a symbol whose
7082 scope is the entire file, not just the current function. This
7083 is needed with MASM which uses the format label:: for this scope.
7084 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7086 *) Change the ASN1 types so they are typedefs by default. Before
7087 almost all types were #define'd to ASN1_STRING which was causing
7088 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7092 *) Change names of new functions to the new get1/get0 naming
7093 convention: After 'get1', the caller owns a reference count
7094 and has to call ..._free; 'get0' returns a pointer to some
7095 data structure without incrementing reference counters.
7096 (Some of the existing 'get' functions increment a reference
7097 counter, some don't.)
7098 Similarly, 'set1' and 'add1' functions increase reference
7099 counters or duplicate objects.
7102 *) Allow for the possibility of temp RSA key generation failure:
7103 the code used to assume it always worked and crashed on failure.
7106 *) Fix potential buffer overrun problem in BIO_printf().
7107 [Ulf Möller, using public domain code by Patrick Powell; problem
7108 pointed out by David Sacerdote <das33@cornell.edu>]
7110 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7111 RAND_egd() and RAND_status(). In the command line application,
7112 the EGD socket can be specified like a seed file using RANDFILE
7116 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7117 Some CAs (e.g. Verisign) distribute certificates in this form.
7120 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7121 list to exclude them. This means that no special compilation option
7122 is needed to use anonymous DH: it just needs to be included in the
7126 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7127 EVP_MD_type. The old functionality is available in a new macro called
7128 EVP_MD_md(). Change code that uses it and update docs.
7131 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7132 where the 'void *' argument is replaced by a function pointer argument.
7133 Previously 'void *' was abused to point to functions, which works on
7134 many platforms, but is not correct. As these functions are usually
7135 called by macros defined in OpenSSL header files, most source code
7136 should work without changes.
7139 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7140 sections with information on -D... compiler switches used for
7141 compiling the library so that applications can see them. To enable
7142 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7143 must be defined. E.g.,
7144 #define OPENSSL_ALGORITHM_DEFINES
7145 #include <openssl/opensslconf.h>
7146 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7147 [Richard Levitte, Ulf and Bodo Möller]
7149 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7153 *) Change the 'other' type in certificate aux info to a STACK_OF
7154 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7155 the required ASN1 format: arbitrary types determined by an OID.
7158 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7159 argument to 'req'. This is not because the function is newer or
7160 better than others it just uses the work 'NEW' in the certificate
7161 request header lines. Some software needs this.
7164 *) Reorganise password command line arguments: now passwords can be
7165 obtained from various sources. Delete the PEM_cb function and make
7166 it the default behaviour: i.e. if the callback is NULL and the
7167 usrdata argument is not NULL interpret it as a null terminated pass
7168 phrase. If usrdata and the callback are NULL then the pass phrase
7169 is prompted for as usual.
7172 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7173 the support is automatically enabled. The resulting binaries will
7174 autodetect the card and use it if present.
7175 [Ben Laurie and Compaq Inc.]
7177 *) Work around for Netscape hang bug. This sends certificate request
7178 and server done in one record. Since this is perfectly legal in the
7179 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7180 the bugs/SSLv3 entry for more info.
7183 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7186 *) Add -rand argument to smime and pkcs12 applications and read/write
7190 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7193 *) Add command line password options to the remaining applications.
7196 *) Bug fix for BN_div_recp() for numerators with an even number of
7200 *) More tests in bntest.c, and changed test_bn output.
7203 *) ./config recognizes MacOS X now.
7206 *) Bug fix for BN_div() when the first words of num and divsor are
7207 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7210 *) Add support for various broken PKCS#8 formats, and command line
7211 options to produce them.
7214 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7215 get temporary BIGNUMs from a BN_CTX.
7218 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7222 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7223 include a #define from the old name to the new. The original intent
7224 was that statically linked binaries could for example just call
7225 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7226 link with digests. This never worked becayse SSLeay_add_all_digests()
7227 and SSLeay_add_all_ciphers() were in the same source file so calling
7228 one would link with the other. They are now in separate source files.
7231 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7234 *) Use a less unusual form of the Miller-Rabin primality test (it used
7235 a binary algorithm for exponentiation integrated into the Miller-Rabin
7236 loop, our standard modexp algorithms are faster).
7239 *) Support for the EBCDIC character set completed.
7240 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7242 *) Source code cleanups: use const where appropriate, eliminate casts,
7243 use void * instead of char * in lhash.
7246 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7247 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7248 this the server could overwrite ephemeral keys that the client
7252 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7253 using 50 iterations of the Rabin-Miller test.
7255 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7256 iterations of the Rabin-Miller test as required by the appendix
7257 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7258 As BN_is_prime_fasttest includes trial division, DSA parameter
7259 generation becomes much faster.
7261 This implies a change for the callback functions in DSA_is_prime
7262 and DSA_generate_parameters: The callback function is called once
7263 for each positive witness in the Rabin-Miller test, not just
7264 occasionally in the inner loop; and the parameters to the
7265 callback function now provide an iteration count for the outer
7266 loop rather than for the current invocation of the inner loop.
7267 DSA_generate_parameters additionally can call the callback
7268 function with an 'iteration count' of -1, meaning that a
7269 candidate has passed the trial division test (when q is generated
7270 from an application-provided seed, trial division is skipped).
7273 *) New function BN_is_prime_fasttest that optionally does trial
7274 division before starting the Rabin-Miller test and has
7275 an additional BN_CTX * argument (whereas BN_is_prime always
7276 has to allocate at least one BN_CTX).
7277 'callback(1, -1, cb_arg)' is called when a number has passed the
7278 trial division stage.
7281 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7285 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7288 *) New function BN_pseudo_rand().
7291 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7292 bignum version of BN_from_montgomery() with the working code from
7293 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7297 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7298 made it impossible to use the same SSL_SESSION data structure in
7299 SSL2 clients in multiple threads.
7302 *) The return value of RAND_load_file() no longer counts bytes obtained
7303 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7304 to seed the PRNG (previously an explicit byte count was required).
7305 [Ulf Möller, Bodo Möller]
7307 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7308 used (char *) instead of (void *) and had casts all over the place.
7311 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7314 *) Retain source code compatibility for BN_prime_checks macro:
7315 BN_is_prime(..., BN_prime_checks, ...) now uses
7316 BN_prime_checks_for_size to determine the appropriate number of
7317 Rabin-Miller iterations.
7320 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7321 DH_CHECK_P_NOT_SAFE_PRIME.
7322 (Check if this is true? OpenPGP calls them "strong".)
7325 *) Merge the functionality of "dh" and "gendh" programs into a new program
7326 "dhparam". The old programs are retained for now but will handle DH keys
7327 (instead of parameters) in future.
7330 *) Make the ciphers, s_server and s_client programs check the return values
7331 when a new cipher list is set.
7334 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7335 ciphers. Before when the 56bit ciphers were enabled the sorting was
7338 The syntax for the cipher sorting has been extended to support sorting by
7339 cipher-strength (using the strength_bits hard coded in the tables).
7340 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7342 Fix a bug in the cipher-command parser: when supplying a cipher command
7343 string with an "undefined" symbol (neither command nor alphanumeric
7344 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7345 an error is flagged.
7347 Due to the strength-sorting extension, the code of the
7348 ssl_create_cipher_list() function was completely rearranged. I hope that
7349 the readability was also increased :-)
7350 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7352 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7353 for the first serial number and places 2 in the serial number file. This
7354 avoids problems when the root CA is created with serial number zero and
7355 the first user certificate has the same issuer name and serial number
7359 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7360 the new code. Add documentation for this stuff.
7363 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7364 X509_*() to X509at_*() on the grounds that they don't handle X509
7365 structures and behave in an analagous way to the X509v3 functions:
7366 they shouldn't be called directly but wrapper functions should be used
7369 So we also now have some wrapper functions that call the X509at functions
7370 when passed certificate requests. (TO DO: similar things can be done with
7371 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7372 things. Some of these need some d2i or i2d and print functionality
7373 because they handle more complex structures.)
7376 *) Add missing #ifndefs that caused missing symbols when building libssl
7377 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7378 NO_RSA in ssl/s2*.c.
7379 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7381 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7382 has a return value which indicates the quality of the random data
7383 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7384 error queue. New function RAND_pseudo_bytes() generates output that is
7385 guaranteed to be unique but not unpredictable. RAND_add is like
7386 RAND_seed, but takes an extra argument for an entropy estimate
7387 (RAND_seed always assumes full entropy).
7390 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7391 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7392 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7393 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7394 false-positive rate of at most 2^-80 for random input.
7397 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7400 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7401 in the 0.9.5 release), this returns the chain
7402 from an X509_CTX structure with a dup of the stack and all
7403 the X509 reference counts upped: so the stack will exist
7404 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7407 Also make SSL_SESSION_print() print out the verify return
7411 *) Add manpage for the pkcs12 command. Also change the default
7412 behaviour so MAC iteration counts are used unless the new
7413 -nomaciter option is used. This improves file security and
7414 only older versions of MSIE (4.0 for example) need it.
7417 *) Honor the no-xxx Configure options when creating .DEF files.
7420 *) Add PKCS#10 attributes to field table: challengePassword,
7421 unstructuredName and unstructuredAddress. These are taken from
7422 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7423 international characters are used.
7425 More changes to X509_ATTRIBUTE code: allow the setting of types
7426 based on strings. Remove the 'loc' parameter when adding
7427 attributes because these will be a SET OF encoding which is sorted
7431 *) Initial changes to the 'req' utility to allow request generation
7432 automation. This will allow an application to just generate a template
7433 file containing all the field values and have req construct the
7436 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7437 used all over the place including certificate requests and PKCS#7
7438 structures. They are currently handled manually where necessary with
7439 some primitive wrappers for PKCS#7. The new functions behave in a
7440 manner analogous to the X509 extension functions: they allow
7441 attributes to be looked up by NID and added.
7443 Later something similar to the X509V3 code would be desirable to
7444 automatically handle the encoding, decoding and printing of the
7445 more complex types. The string types like challengePassword can
7446 be handled by the string table functions.
7448 Also modified the multi byte string table handling. Now there is
7449 a 'global mask' which masks out certain types. The table itself
7450 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7451 is useful when for example there is only one permissible type
7452 (as in countryName) and using the mask might result in no valid
7456 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7457 SSL_get_peer_finished to allow applications to obtain the latest
7458 Finished messages sent to the peer or expected from the peer,
7459 respectively. (SSL_get_peer_finished is usually the Finished message
7460 actually received from the peer, otherwise the protocol will be aborted.)
7462 As the Finished message are message digests of the complete handshake
7463 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7464 be used for external authentication procedures when the authentication
7465 provided by SSL/TLS is not desired or is not enough.
7468 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7469 the host supports BWX extension and if Compaq C is present on the
7470 $PATH. Just exploiting of the BWX extension results in 20-30%
7471 performance kick for some algorithms, e.g. DES and RC4 to mention
7472 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7476 *) Add support for MS "fast SGC". This is arguably a violation of the
7477 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7478 weak crypto and after checking the certificate is SGC a second one
7479 with strong crypto. MS SGC stops the first handshake after receiving
7480 the server certificate message and sends a second client hello. Since
7481 a server will typically do all the time consuming operations before
7482 expecting any further messages from the client (server key exchange
7483 is the most expensive) there is little difference between the two.
7485 To get OpenSSL to support MS SGC we have to permit a second client
7486 hello message after we have sent server done. In addition we have to
7487 reset the MAC if we do get this second client hello.
7490 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7491 if a DER encoded private key is RSA or DSA traditional format. Changed
7492 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7493 format DER encoded private key. Newer code should use PKCS#8 format which
7494 has the key type encoded in the ASN1 structure. Added DER private key
7495 support to pkcs8 application.
7498 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7499 ciphersuites has been selected (as required by the SSL 3/TLS 1
7500 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7501 is set, we interpret this as a request to violate the specification
7502 (the worst that can happen is a handshake failure, and 'correct'
7503 behaviour would result in a handshake failure anyway).
7506 *) In SSL_CTX_add_session, take into account that there might be multiple
7507 SSL_SESSION structures with the same session ID (e.g. when two threads
7508 concurrently obtain them from an external cache).
7509 The internal cache can handle only one SSL_SESSION with a given ID,
7510 so if there's a conflict, we now throw out the old one to achieve
7514 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7515 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7516 some routines that use cipher OIDs: some ciphers do not have OIDs
7517 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7521 *) Simplify the trust setting structure and code. Now we just have
7522 two sequences of OIDs for trusted and rejected settings. These will
7523 typically have values the same as the extended key usage extension
7524 and any application specific purposes.
7526 The trust checking code now has a default behaviour: it will just
7527 check for an object with the same NID as the passed id. Functions can
7528 be provided to override either the default behaviour or the behaviour
7529 for a given id. SSL client, server and email already have functions
7530 in place for compatibility: they check the NID and also return "trusted"
7531 if the certificate is self signed.
7534 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7535 traditional format into an EVP_PKEY structure.
7538 *) Add a password callback function PEM_cb() which either prompts for
7539 a password if usr_data is NULL or otherwise assumes it is a null
7540 terminated password. Allow passwords to be passed on command line
7541 environment or config files in a few more utilities.
7544 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7545 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7546 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7547 Update documentation.
7550 *) Support for ASN1 "NULL" type. This could be handled before by using
7551 ASN1_TYPE but there wasn't any function that would try to read a NULL
7552 and produce an error if it couldn't. For compatibility we also have
7553 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7554 don't allocate anything because they don't need to.
7557 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7559 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7561 *) Rebuild of the memory allocation routines used by OpenSSL code and
7562 possibly others as well. The purpose is to make an interface that
7563 provide hooks so anyone can build a separate set of allocation and
7564 deallocation routines to be used by OpenSSL, for example memory
7565 pool implementations, or something else, which was previously hard
7566 since Malloc(), Realloc() and Free() were defined as macros having
7567 the values malloc, realloc and free, respectively (except for Win32
7568 compilations). The same is provided for memory debugging code.
7569 OpenSSL already comes with functionality to find memory leaks, but
7570 this gives people a chance to debug other memory problems.
7572 With these changes, a new set of functions and macros have appeared:
7574 CRYPTO_set_mem_debug_functions() [F]
7575 CRYPTO_get_mem_debug_functions() [F]
7576 CRYPTO_dbg_set_options() [F]
7577 CRYPTO_dbg_get_options() [F]
7578 CRYPTO_malloc_debug_init() [M]
7580 The memory debug functions are NULL by default, unless the library
7581 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7582 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7583 gives the standard debugging functions that come with OpenSSL) or
7584 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7585 provided by the library user) must be used. When the standard
7586 debugging functions are used, CRYPTO_dbg_set_options can be used to
7587 request additional information:
7588 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7589 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7591 Also, things like CRYPTO_set_mem_functions will always give the
7592 expected result (the new set of functions is used for allocation
7593 and deallocation) at all times, regardless of platform and compiler
7596 To finish it up, some functions that were never use in any other
7597 way than through macros have a new API and new semantic:
7600 CRYPTO_dbg_realloc()
7603 All macros of value have retained their old syntax.
7604 [Richard Levitte and Bodo Moeller]
7606 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7607 ordering of SMIMECapabilities wasn't in "strength order" and there
7608 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7612 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7613 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7614 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7616 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7617 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7618 functionality to handle multipart/signed properly) and a utility
7619 called 'smime' to call all this stuff. This is based on code I
7620 originally wrote for Celo who have kindly allowed it to be
7621 included in OpenSSL.
7624 *) Add variants des_set_key_checked and des_set_key_unchecked of
7625 des_set_key (aka des_key_sched). Global variable des_check_key
7626 decides which of these is called by des_set_key; this way
7627 des_check_key behaves as it always did, but applications and
7628 the library itself, which was buggy for des_check_key == 1,
7629 have a cleaner way to pick the version they need.
7632 *) New function PKCS12_newpass() which changes the password of a
7636 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7637 dynamic mix. In both cases the ids can be used as an index into the
7638 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7639 functions so they accept a list of the field values and the
7640 application doesn't need to directly manipulate the X509_TRUST
7644 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7648 *) Modify the way the V3 extension code looks up extensions. This now
7649 works in a similar way to the object code: we have some "standard"
7650 extensions in a static table which is searched with OBJ_bsearch()
7651 and the application can add dynamic ones if needed. The file
7652 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7653 updated whenever a new extension is added to the core code and kept
7654 in ext_nid order. There is a simple program 'tabtest.c' which checks
7655 this. New extensions are not added too often so this file can readily
7656 be maintained manually.
7658 There are two big advantages in doing things this way. The extensions
7659 can be looked up immediately and no longer need to be "added" using
7660 X509V3_add_standard_extensions(): this function now does nothing.
7661 [Side note: I get *lots* of email saying the extension code doesn't
7662 work because people forget to call this function]
7663 Also no dynamic allocation is done unless new extensions are added:
7664 so if we don't add custom extensions there is no need to call
7665 X509V3_EXT_cleanup().
7668 *) Modify enc utility's salting as follows: make salting the default. Add a
7669 magic header, so unsalted files fail gracefully instead of just decrypting
7670 to garbage. This is because not salting is a big security hole, so people
7671 should be discouraged from doing it.
7674 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7675 digest to be passed on the command line but it only used this
7676 parameter when signing a certificate. Modified so all relevant
7677 operations are affected by the digest parameter including the
7678 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7679 DSA key was used because it didn't fix the digest.
7682 *) Initial certificate chain verify code. Currently tests the untrusted
7683 certificates for consistency with the verify purpose (which is set
7684 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7686 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7687 this is because it will reject chains with invalid extensions whereas
7688 every previous version of OpenSSL and SSLeay made no checks at all.
7690 Trust code: checks the root CA for the relevant trust settings. Trust
7691 settings have an initial value consistent with the verify purpose: e.g.
7692 if the verify purpose is for SSL client use it expects the CA to be
7693 trusted for SSL client use. However the default value can be changed to
7694 permit custom trust settings: one example of this would be to only trust
7695 certificates from a specific "secure" set of CAs.
7697 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7698 which should be used for version portability: especially since the
7699 verify structure is likely to change more often now.
7701 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7702 to set them. If not set then assume SSL clients will verify SSL servers
7705 Two new options to the verify program: -untrusted allows a set of
7706 untrusted certificates to be passed in and -purpose which sets the
7707 intended purpose of the certificate. If a purpose is set then the
7708 new chain verify code is used to check extension consistency.
7711 *) Support for the authority information access extension.
7714 *) Modify RSA and DSA PEM read routines to transparently handle
7715 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7716 public keys in a format compatible with certificate
7717 SubjectPublicKeyInfo structures. Unfortunately there were already
7718 functions called *_PublicKey_* which used various odd formats so
7719 these are retained for compatibility: however the DSA variants were
7720 never in a public release so they have been deleted. Changed dsa/rsa
7721 utilities to handle the new format: note no releases ever handled public
7722 keys so we should be OK.
7724 The primary motivation for this change is to avoid the same fiasco
7725 that dogs private keys: there are several incompatible private key
7726 formats some of which are standard and some OpenSSL specific and
7727 require various evil hacks to allow partial transparent handling and
7728 even then it doesn't work with DER formats. Given the option anything
7729 other than PKCS#8 should be dumped: but the other formats have to
7730 stay in the name of compatibility.
7732 With public keys and the benefit of hindsight one standard format
7733 is used which works with EVP_PKEY, RSA or DSA structures: though
7734 it clearly returns an error if you try to read the wrong kind of key.
7736 Added a -pubkey option to the 'x509' utility to output the public key.
7737 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7738 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7739 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7740 that do the same as the EVP_PKEY_assign_*() except they up the
7741 reference count of the added key (they don't "swallow" the
7745 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7746 CRLs would fail if the file contained no certificates or no CRLs:
7747 added a new function to read in both types and return the number
7748 read: this means that if none are read it will be an error. The
7749 DER versions of the certificate and CRL reader would always fail
7750 because it isn't possible to mix certificates and CRLs in DER format
7751 without choking one or the other routine. Changed this to just read
7752 a certificate: this is the best we can do. Also modified the code
7753 in apps/verify.c to take notice of return codes: it was previously
7754 attempting to read in certificates from NULL pointers and ignoring
7755 any errors: this is one reason why the cert and CRL reader seemed
7756 to work. It doesn't check return codes from the default certificate
7757 routines: these may well fail if the certificates aren't installed.
7760 *) Code to support otherName option in GeneralName.
7763 *) First update to verify code. Change the verify utility
7764 so it warns if it is passed a self signed certificate:
7765 for consistency with the normal behaviour. X509_verify
7766 has been modified to it will now verify a self signed
7767 certificate if *exactly* the same certificate appears
7768 in the store: it was previously impossible to trust a
7769 single self signed certificate. This means that:
7770 openssl verify ss.pem
7771 now gives a warning about a self signed certificate but
7772 openssl verify -CAfile ss.pem ss.pem
7776 *) For servers, store verify_result in SSL_SESSION data structure
7777 (and add it to external session representation).
7778 This is needed when client certificate verifications fails,
7779 but an application-provided verification callback (set by
7780 SSL_CTX_set_cert_verify_callback) allows accepting the session
7781 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7782 but returns 1): When the session is reused, we have to set
7783 ssl->verify_result to the appropriate error code to avoid
7785 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7787 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7788 case in PKCS7_dataInit() where the signed PKCS7 structure
7789 didn't contain any existing data because it was being created.
7790 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7792 *) Add a salt to the key derivation routines in enc.c. This
7793 forms the first 8 bytes of the encrypted file. Also add a
7794 -S option to allow a salt to be input on the command line.
7797 *) New function X509_cmp(). Oddly enough there wasn't a function
7798 to compare two certificates. We do this by working out the SHA1
7799 hash and comparing that. X509_cmp() will be needed by the trust
7803 *) SSL_get1_session() is like SSL_get_session(), but increments
7804 the reference count in the SSL_SESSION returned.
7805 [Geoff Thorpe <geoff@eu.c2.net>]
7807 *) Fix for 'req': it was adding a null to request attributes.
7808 Also change the X509_LOOKUP and X509_INFO code to handle
7809 certificate auxiliary information.
7812 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7816 *) Add the possibility to add extra information to the memory leak
7817 detecting output, to form tracebacks, showing from where each
7818 allocation was originated: CRYPTO_push_info("constant string") adds
7819 the string plus current file name and line number to a per-thread
7820 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7821 is like calling CYRPTO_pop_info() until the stack is empty.
7822 Also updated memory leak detection code to be multi-thread-safe.
7825 *) Add options -text and -noout to pkcs7 utility and delete the
7826 encryption options which never did anything. Update docs.
7829 *) Add options to some of the utilities to allow the pass phrase
7830 to be included on either the command line (not recommended on
7831 OSes like Unix) or read from the environment. Update the
7832 manpages and fix a few bugs.
7835 *) Add a few manpages for some of the openssl commands.
7838 *) Fix the -revoke option in ca. It was freeing up memory twice,
7839 leaking and not finding already revoked certificates.
7842 *) Extensive changes to support certificate auxiliary information.
7843 This involves the use of X509_CERT_AUX structure and X509_AUX
7844 functions. An X509_AUX function such as PEM_read_X509_AUX()
7845 can still read in a certificate file in the usual way but it
7846 will also read in any additional "auxiliary information". By
7847 doing things this way a fair degree of compatibility can be
7848 retained: existing certificates can have this information added
7849 using the new 'x509' options.
7851 Current auxiliary information includes an "alias" and some trust
7852 settings. The trust settings will ultimately be used in enhanced
7853 certificate chain verification routines: currently a certificate
7854 can only be trusted if it is self signed and then it is trusted
7858 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7859 The problem was that one of the replacement routines had not been working
7860 since SSLeay releases. For now the offending routine has been replaced
7861 with non-optimised assembler. Even so, this now gives around 95%
7862 performance improvement for 1024 bit RSA signs.
7865 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7866 handling. Most clients have the effective key size in bits equal to
7867 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7868 A few however don't do this and instead use the size of the decrypted key
7869 to determine the RC2 key length and the AlgorithmIdentifier to determine
7870 the effective key length. In this case the effective key length can still
7871 be 40 bits but the key length can be 168 bits for example. This is fixed
7872 by manually forcing an RC2 key into the EVP_PKEY structure because the
7873 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7874 the key length and effective key length are equal.
7877 *) Add a bunch of functions that should simplify the creation of
7878 X509_NAME structures. Now you should be able to do:
7879 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7880 and have it automatically work out the correct field type and fill in
7881 the structures. The more adventurous can try:
7882 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7883 and it will (hopefully) work out the correct multibyte encoding.
7886 *) Change the 'req' utility to use the new field handling and multibyte
7887 copy routines. Before the DN field creation was handled in an ad hoc
7888 way in req, ca, and x509 which was rather broken and didn't support
7889 BMPStrings or UTF8Strings. Since some software doesn't implement
7890 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7891 using the dirstring_type option. See the new comment in the default
7892 openssl.cnf for more info.
7895 *) Make crypto/rand/md_rand.c more robust:
7896 - Assure unique random numbers after fork().
7897 - Make sure that concurrent threads access the global counter and
7898 md serializably so that we never lose entropy in them
7899 or use exactly the same state in multiple threads.
7900 Access to the large state is not always serializable because
7901 the additional locking could be a performance killer, and
7902 md should be large enough anyway.
7905 *) New file apps/app_rand.c with commonly needed functionality
7906 for handling the random seed file.
7908 Use the random seed file in some applications that previously did not:
7910 dsaparam -genkey (which also ignored its '-rand' option),
7913 x509 (when signing).
7914 Except on systems with /dev/urandom, it is crucial to have a random
7915 seed file at least for key creation, DSA signing, and for DH exchanges;
7916 for RSA signatures we could do without one.
7918 gendh and gendsa (unlike genrsa) used to read only the first byte
7919 of each file listed in the '-rand' option. The function as previously
7920 found in genrsa is now in app_rand.c and is used by all programs
7921 that support '-rand'.
7924 *) In RAND_write_file, use mode 0600 for creating files;
7925 don't just chmod when it may be too late.
7928 *) Report an error from X509_STORE_load_locations
7929 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7932 *) New function ASN1_mbstring_copy() this copies a string in either
7933 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7934 into an ASN1_STRING type. A mask of permissible types is passed
7935 and it chooses the "minimal" type to use or an error if not type
7939 *) Add function equivalents to the various macros in asn1.h. The old
7940 macros are retained with an M_ prefix. Code inside the library can
7941 use the M_ macros. External code (including the openssl utility)
7942 should *NOT* in order to be "shared library friendly".
7945 *) Add various functions that can check a certificate's extensions
7946 to see if it usable for various purposes such as SSL client,
7947 server or S/MIME and CAs of these types. This is currently
7948 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7949 verification. Also added a -purpose flag to x509 utility to
7950 print out all the purposes.
7953 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7957 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7958 for, obtain and decode and extension and obtain its critical flag.
7959 This allows all the necessary extension code to be handled in a
7960 single function call.
7963 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7964 platforms. See crypto/rc4/rc4_enc.c for further details.
7967 *) New -noout option to asn1parse. This causes no output to be produced
7968 its main use is when combined with -strparse and -out to extract data
7969 from a file (which may not be in ASN.1 format).
7972 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7973 when producing the local key id.
7974 [Richard Levitte <levitte@stacken.kth.se>]
7976 *) New option -dhparam in s_server. This allows a DH parameter file to be
7977 stated explicitly. If it is not stated then it tries the first server
7978 certificate file. The previous behaviour hard coded the filename
7982 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7983 a public key to be input or output. For example:
7984 openssl rsa -in key.pem -pubout -out pubkey.pem
7985 Also added necessary DSA public key functions to handle this.
7988 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7989 in the message. This was handled by allowing
7990 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7991 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7993 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7994 to the end of the strings whereas this didn't. This would cause problems
7995 if strings read with d2i_ASN1_bytes() were later modified.
7996 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7998 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7999 data and it contains EOF it will end up returning an error. This is
8000 caused by input 46 bytes long. The cause is due to the way base64
8001 BIOs find the start of base64 encoded data. They do this by trying a
8002 trial decode on each line until they find one that works. When they
8003 do a flag is set and it starts again knowing it can pass all the
8004 data directly through the decoder. Unfortunately it doesn't reset
8005 the context it uses. This means that if EOF is reached an attempt
8006 is made to pass two EOFs through the context and this causes the
8007 resulting error. This can also cause other problems as well. As is
8008 usual with these problems it takes *ages* to find and the fix is
8009 trivial: move one line.
8010 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8012 *) Ugly workaround to get s_client and s_server working under Windows. The
8013 old code wouldn't work because it needed to select() on sockets and the
8014 tty (for keypresses and to see if data could be written). Win32 only
8015 supports select() on sockets so we select() with a 1s timeout on the
8016 sockets and then see if any characters are waiting to be read, if none
8017 are present then we retry, we also assume we can always write data to
8018 the tty. This isn't nice because the code then blocks until we've
8019 received a complete line of data and it is effectively polling the
8020 keyboard at 1s intervals: however it's quite a bit better than not
8021 working at all :-) A dedicated Windows application might handle this
8022 with an event loop for example.
8025 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8026 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8027 will be called when RSA_sign() and RSA_verify() are used. This is useful
8028 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8029 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8030 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8031 This necessitated the support of an extra signature type NID_md5_sha1
8032 for SSL signatures and modifications to the SSL library to use it instead
8033 of calling RSA_public_decrypt() and RSA_private_encrypt().
8036 *) Add new -verify -CAfile and -CApath options to the crl program, these
8037 will lookup a CRL issuers certificate and verify the signature in a
8038 similar way to the verify program. Tidy up the crl program so it
8039 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8040 less strict. It will now permit CRL extensions even if it is not
8041 a V2 CRL: this will allow it to tolerate some broken CRLs.
8044 *) Initialize all non-automatic variables each time one of the openssl
8045 sub-programs is started (this is necessary as they may be started
8046 multiple times from the "OpenSSL>" prompt).
8047 [Lennart Bang, Bodo Moeller]
8049 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8050 removing all other RSA functionality (this is what NO_RSA does). This
8051 is so (for example) those in the US can disable those operations covered
8052 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8056 *) Non-copying interface to BIO pairs.
8057 (still largely untested)
8060 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8061 ASCII string. This was handled independently in various places before.
8064 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8065 UTF8 strings a character at a time.
8068 *) Use client_version from client hello to select the protocol
8069 (s23_srvr.c) and for RSA client key exchange verification
8070 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8073 *) Add various utility functions to handle SPKACs, these were previously
8074 handled by poking round in the structure internals. Added new function
8075 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8076 print, verify and generate SPKACs. Based on an original idea from
8077 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8080 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8083 *) Allow the config file extension section to be overwritten on the
8084 command line. Based on an original idea from Massimiliano Pala
8085 <madwolf@comune.modena.it>. The new option is called -extensions
8086 and can be applied to ca, req and x509. Also -reqexts to override
8087 the request extensions in req and -crlexts to override the crl extensions
8091 *) Add new feature to the SPKAC handling in ca. Now you can include
8092 the same field multiple times by preceding it by "XXXX." for example:
8095 this is the same syntax as used in the req config file.
8098 *) Allow certificate extensions to be added to certificate requests. These
8099 are specified in a 'req_extensions' option of the req section of the
8100 config file. They can be printed out with the -text option to req but
8101 are otherwise ignored at present.
8104 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8105 data read consists of only the final block it would not decrypted because
8106 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8107 A misplaced 'break' also meant the decrypted final block might not be
8108 copied until the next read.
8111 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8112 a few extra parameters to the DH structure: these will be useful if
8113 for example we want the value of 'q' or implement X9.42 DH.
8116 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8117 provides hooks that allow the default DSA functions or functions on a
8118 "per key" basis to be replaced. This allows hardware acceleration and
8119 hardware key storage to be handled without major modification to the
8120 library. Also added low level modexp hooks and CRYPTO_EX structure and
8121 associated functions.
8124 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8125 as "read only": it can't be written to and the buffer it points to will
8126 not be freed. Reading from a read only BIO is much more efficient than
8127 a normal memory BIO. This was added because there are several times when
8128 an area of memory needs to be read from a BIO. The previous method was
8129 to create a memory BIO and write the data to it, this results in two
8130 copies of the data and an O(n^2) reading algorithm. There is a new
8131 function BIO_new_mem_buf() which creates a read only memory BIO from
8132 an area of memory. Also modified the PKCS#7 routines to use read only
8136 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8137 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8138 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8139 but a retry condition occured while trying to read the rest.
8142 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8143 NID_pkcs7_encrypted by default: this was wrong since this should almost
8144 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8145 the encrypted data type: this is a more sensible place to put it and it
8146 allows the PKCS#12 code to be tidied up that duplicated this
8150 *) Changed obj_dat.pl script so it takes its input and output files on
8151 the command line. This should avoid shell escape redirection problems
8155 *) Initial support for certificate extension requests, these are included
8156 in things like Xenroll certificate requests. Included functions to allow
8157 extensions to be obtained and added.
8160 *) -crlf option to s_client and s_server for sending newlines as
8161 CRLF (as required by many protocols).
8164 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8166 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8167 [Ralf S. Engelschall]
8169 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8170 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8172 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8176 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8177 DH parameters/keys (q is lost during that conversion, but the resulting
8178 DH parameters contain its length).
8180 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8181 much faster than DH_generate_parameters (which creates parameters
8182 where p = 2*q + 1), and also the smaller q makes DH computations
8183 much more efficient (160-bit exponentiation instead of 1024-bit
8184 exponentiation); so this provides a convenient way to support DHE
8185 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8186 utter importance to use
8187 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8189 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8190 when such DH parameters are used, because otherwise small subgroup
8191 attacks may become possible!
8194 *) Avoid memory leak in i2d_DHparams.
8197 *) Allow the -k option to be used more than once in the enc program:
8198 this allows the same encrypted message to be read by multiple recipients.
8201 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8202 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8203 it will always use the numerical form of the OID, even if it has a short
8207 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8208 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8209 otherwise bn_mod_exp was called. In the case of hardware keys for example
8210 no private key components need be present and it might store extra data
8211 in the RSA structure, which cannot be accessed from bn_mod_exp.
8212 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8213 private key operations.
8216 *) Added support for SPARC Linux.
8219 *) pem_password_cb function type incompatibly changed from
8220 typedef int pem_password_cb(char *buf, int size, int rwflag);
8222 ....(char *buf, int size, int rwflag, void *userdata);
8223 so that applications can pass data to their callbacks:
8224 The PEM[_ASN1]_{read,write}... functions and macros now take an
8225 additional void * argument, which is just handed through whenever
8226 the password callback is called.
8227 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8229 New function SSL_CTX_set_default_passwd_cb_userdata.
8231 Compatibility note: As many C implementations push function arguments
8232 onto the stack in reverse order, the new library version is likely to
8233 interoperate with programs that have been compiled with the old
8234 pem_password_cb definition (PEM_whatever takes some data that
8235 happens to be on the stack as its last argument, and the callback
8236 just ignores this garbage); but there is no guarantee whatsoever that
8239 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8240 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8241 problems not only on Windows, but also on some Unix platforms.
8242 To avoid problematic command lines, these definitions are now in an
8243 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8244 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8247 *) MIPS III/IV assembler module is reimplemented.
8250 *) More DES library cleanups: remove references to srand/rand and
8251 delete an unused file.
8254 *) Add support for the the free Netwide assembler (NASM) under Win32,
8255 since not many people have MASM (ml) and it can be hard to obtain.
8256 This is currently experimental but it seems to work OK and pass all
8257 the tests. Check out INSTALL.W32 for info.
8260 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8261 without temporary keys kept an extra copy of the server key,
8262 and connections with temporary keys did not free everything in case
8266 *) New function RSA_check_key and new openssl rsa option -check
8267 for verifying the consistency of RSA keys.
8268 [Ulf Moeller, Bodo Moeller]
8270 *) Various changes to make Win32 compile work:
8271 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8272 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8273 comparison" warnings.
8274 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8277 *) Add a debugging option to PKCS#5 v2 key generation function: when
8278 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8279 derived keys are printed to stderr.
8282 *) Copy the flags in ASN1_STRING_dup().
8283 [Roman E. Pavlov <pre@mo.msk.ru>]
8285 *) The x509 application mishandled signing requests containing DSA
8286 keys when the signing key was also DSA and the parameters didn't match.
8288 It was supposed to omit the parameters when they matched the signing key:
8289 the verifying software was then supposed to automatically use the CA's
8290 parameters if they were absent from the end user certificate.
8292 Omitting parameters is no longer recommended. The test was also
8293 the wrong way round! This was probably due to unusual behaviour in
8294 EVP_cmp_parameters() which returns 1 if the parameters match.
8295 This meant that parameters were omitted when they *didn't* match and
8296 the certificate was useless. Certificates signed with 'ca' didn't have
8298 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8300 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8301 The interface is as follows:
8302 Applications can use
8303 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8304 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8305 "off" is now the default.
8306 The library internally uses
8307 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8308 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8309 to disable memory-checking temporarily.
8311 Some inconsistent states that previously were possible (and were
8312 even the default) are now avoided.
8314 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8315 with each memory chunk allocated; this is occasionally more helpful
8316 than just having a counter.
8318 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8320 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8324 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8325 which largely parallels "options", but is for changing API behaviour,
8326 whereas "options" are about protocol behaviour.
8327 Initial "mode" flags are:
8329 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8330 a single record has been written.
8331 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8332 retries use the same buffer location.
8333 (But all of the contents must be
8337 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8340 *) Fix problems with no-hmac etc.
8341 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8343 *) New functions RSA_get_default_method(), RSA_set_method() and
8344 RSA_get_method(). These allows replacement of RSA_METHODs without having
8345 to mess around with the internals of an RSA structure.
8348 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8349 Also really enable memory leak checks in openssl.c and in some
8351 [Chad C. Mulligan, Bodo Moeller]
8353 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8354 up the length of negative integers. This has now been simplified to just
8355 store the length when it is first determined and use it later, rather
8356 than trying to keep track of where data is copied and updating it to
8358 [Steve Henson, reported by Brien Wheeler
8359 <bwheeler@authentica-security.com>]
8361 *) Add a new function PKCS7_signatureVerify. This allows the verification
8362 of a PKCS#7 signature but with the signing certificate passed to the
8363 function itself. This contrasts with PKCS7_dataVerify which assumes the
8364 certificate is present in the PKCS#7 structure. This isn't always the
8365 case: certificates can be omitted from a PKCS#7 structure and be
8366 distributed by "out of band" means (such as a certificate database).
8369 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8370 function prototypes in pem.h, also change util/mkdef.pl to add the
8371 necessary function names.
8374 *) mk1mf.pl (used by Windows builds) did not properly read the
8375 options set by Configure in the top level Makefile, and Configure
8376 was not even able to write more than one option correctly.
8377 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8380 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8381 file to be loaded from a BIO or FILE pointer. The BIO version will
8382 for example allow memory BIOs to contain config info.
8385 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8386 Whoever hopes to achieve shared-library compatibility across versions
8387 must use this, not the compile-time macro.
8388 (Exercise 0.9.4: Which is the minimum library version required by
8390 Note: All this applies only to multi-threaded programs, others don't
8394 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8395 through a BIO pair triggered the default case, i.e.
8396 SSLerr(...,SSL_R_UNKNOWN_STATE).
8399 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8400 can use the SSL library even if none of the specific BIOs is
8404 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8405 for the encoded length.
8406 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8408 *) Add initial documentation of the X509V3 functions.
8411 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8412 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8413 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8414 secure PKCS#8 private key format with a high iteration count.
8417 *) Fix determination of Perl interpreter: A perl or perl5
8418 _directory_ in $PATH was also accepted as the interpreter.
8419 [Ralf S. Engelschall]
8421 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8422 wrong with it but it was very old and did things like calling
8423 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8427 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8428 to use the new extension code.
8431 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8432 with macros. This should make it easier to change their form, add extra
8433 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8437 *) Add to configuration table a new entry that can specify an alternative
8438 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8439 according to Mark Crispin <MRC@Panda.COM>.
8443 *) DES CBC did not update the IV. Weird.
8446 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8447 Changing the behaviour of the former might break existing programs --
8448 where IV updating is needed, des_ncbc_encrypt can be used.
8451 *) When bntest is run from "make test" it drives bc to check its
8452 calculations, as well as internally checking them. If an internal check
8453 fails, it needs to cause bc to give a non-zero result or make test carries
8454 on without noticing the failure. Fixed.
8457 *) DES library cleanups.
8460 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8461 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8462 ciphers. NOTE: although the key derivation function has been verified
8463 against some published test vectors it has not been extensively tested
8464 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8468 *) Instead of "mkdir -p", which is not fully portable, use new
8469 Perl script "util/mkdir-p.pl".
8472 *) Rewrite the way password based encryption (PBE) is handled. It used to
8473 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8474 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8475 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8476 the 'parameter' field of the AlgorithmIdentifier is passed to the
8477 underlying key generation function so it must do its own ASN1 parsing.
8478 This has also changed the EVP_PBE_CipherInit() function which now has a
8479 'parameter' argument instead of literal salt and iteration count values
8480 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8483 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8484 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8485 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8486 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8487 value was just used as a "magic string" and not used directly its
8488 value doesn't matter.
8491 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8495 *) "linux-sparc64" configuration (ultrapenguin).
8496 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8497 "linux-sparc" configuration.
8498 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8500 *) config now generates no-xxx options for missing ciphers.
8503 *) Support the EBCDIC character set (work in progress).
8504 File ebcdic.c not yet included because it has a different license.
8505 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8507 *) Support BS2000/OSD-POSIX.
8508 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8510 *) Make callbacks for key generation use void * instead of char *.
8513 *) Make S/MIME samples compile (not yet tested).
8516 *) Additional typesafe stacks.
8519 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8523 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8525 *) New configuration variant "sco5-gcc".
8527 *) Updated some demos.
8528 [Sean O Riordain, Wade Scholine]
8530 *) Add missing BIO_free at exit of pkcs12 application.
8533 *) Fix memory leak in conf.c.
8536 *) Updates for Win32 to assembler version of MD5.
8539 *) Set #! path to perl in apps/der_chop to where we found it
8540 instead of using a fixed path.
8543 *) SHA library changes for irix64-mips4-cc.
8546 *) Improvements for VMS support.
8550 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8552 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8553 This also avoids the problems with SC4.2 and unpatched SC5.
8554 [Andy Polyakov <appro@fy.chalmers.se>]
8556 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8557 These are required because of the typesafe stack would otherwise break
8558 existing code. If old code used a structure member which used to be STACK
8559 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8560 sk_num or sk_value it would produce an error because the num, data members
8561 are not present in STACK_OF. Now it just produces a warning. sk_set
8562 replaces the old method of assigning a value to sk_value
8563 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8564 that does this will no longer work (and should use sk_set instead) but
8565 this could be regarded as a "questionable" behaviour anyway.
8568 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8569 correctly handle encrypted S/MIME data.
8572 *) Change type of various DES function arguments from des_cblock
8573 (which means, in function argument declarations, pointer to char)
8574 to des_cblock * (meaning pointer to array with 8 char elements),
8575 which allows the compiler to do more typechecking; it was like
8576 that back in SSLeay, but with lots of ugly casts.
8578 Introduce new type const_des_cblock.
8581 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8582 problems: find RecipientInfo structure that matches recipient certificate
8583 and initialise the ASN1 structures properly based on passed cipher.
8586 *) Belatedly make the BN tests actually check the results.
8589 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8590 to and from BNs: it was completely broken. New compilation option
8591 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8592 key elements as negative integers.
8595 *) Reorganize and speed up MD5.
8596 [Andy Polyakov <appro@fy.chalmers.se>]
8599 [Richard Levitte <richard@levitte.org>]
8601 *) New option -out to asn1parse to allow the parsed structure to be
8602 output to a file. This is most useful when combined with the -strparse
8603 option to examine the output of things like OCTET STRINGS.
8606 *) Make SSL library a little more fool-proof by not requiring any longer
8607 that SSL_set_{accept,connect}_state be called before
8608 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8609 in many applications because usually everything *appeared* to work as
8610 intended anyway -- now it really works as intended).
8613 *) Move openssl.cnf out of lib/.
8616 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8617 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8618 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8619 [Ralf S. Engelschall]
8621 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8622 handle PKCS#7 enveloped data properly.
8623 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8625 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8626 copying pointers. The cert_st handling is changed by this in
8627 various ways (and thus what used to be known as ctx->default_cert
8628 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8629 any longer when s->cert does not give us what we need).
8630 ssl_cert_instantiate becomes obsolete by this change.
8631 As soon as we've got the new code right (possibly it already is?),
8632 we have solved a couple of bugs of the earlier code where s->cert
8633 was used as if it could not have been shared with other SSL structures.
8635 Note that using the SSL API in certain dirty ways now will result
8636 in different behaviour than observed with earlier library versions:
8637 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8638 does not influence s as it used to.
8640 In order to clean up things more thoroughly, inside SSL_SESSION
8641 we don't use CERT any longer, but a new structure SESS_CERT
8642 that holds per-session data (if available); currently, this is
8643 the peer's certificate chain and, for clients, the server's certificate
8644 and temporary key. CERT holds only those values that can have
8645 meaningful defaults in an SSL_CTX.
8648 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8649 from the internal representation. Various PKCS#7 fixes: remove some
8650 evil casts and set the enc_dig_alg field properly based on the signing
8654 *) Allow PKCS#12 password to be set from the command line or the
8655 environment. Let 'ca' get its config file name from the environment
8656 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8660 *) Allow certificate policies extension to use an IA5STRING for the
8661 organization field. This is contrary to the PKIX definition but
8662 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8666 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8667 without disallowing inline assembler and the like for non-pedantic builds.
8670 *) Support Borland C++ builder.
8671 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8676 *) SHA-1 cleanups and performance enhancements.
8677 [Andy Polyakov <appro@fy.chalmers.se>]
8679 *) Sparc v8plus assembler for the bignum library.
8680 [Andy Polyakov <appro@fy.chalmers.se>]
8682 *) Accept any -xxx and +xxx compiler options in Configure.
8685 *) Update HPUX configuration.
8688 *) Add missing sk_<type>_unshift() function to safestack.h
8689 [Ralf S. Engelschall]
8691 *) New function SSL_CTX_use_certificate_chain_file that sets the
8692 "extra_cert"s in addition to the certificate. (This makes sense
8693 only for "PEM" format files, as chains as a whole are not
8697 *) Support verify_depth from the SSL API.
8698 x509_vfy.c had what can be considered an off-by-one-error:
8699 Its depth (which was not part of the external interface)
8700 was actually counting the number of certificates in a chain;
8701 now it really counts the depth.
8704 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8705 instead of X509err, which often resulted in confusing error
8706 messages since the error codes are not globally unique
8707 (e.g. an alleged error in ssl3_accept when a certificate
8708 didn't match the private key).
8710 *) New function SSL_CTX_set_session_id_context that allows to set a default
8711 value (so that you don't need SSL_set_session_id_context for each
8712 connection using the SSL_CTX).
8715 *) OAEP decoding bug fix.
8718 *) Support INSTALL_PREFIX for package builders, as proposed by
8722 *) New Configure options "threads" and "no-threads". For systems
8723 where the proper compiler options are known (currently Solaris
8724 and Linux), "threads" is the default.
8727 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8730 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8731 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8732 such as /usr/local/bin.
8735 *) "make linux-shared" to build shared libraries.
8736 [Niels Poppe <niels@netbox.org>]
8738 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8741 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8742 extension adding in x509 utility.
8745 *) Remove NOPROTO sections and error code comments.
8748 *) Partial rewrite of the DEF file generator to now parse the ANSI
8752 *) New Configure options --prefix=DIR and --openssldir=DIR.
8755 *) Complete rewrite of the error code script(s). It is all now handled
8756 by one script at the top level which handles error code gathering,
8757 header rewriting and C source file generation. It should be much better
8758 than the old method: it now uses a modified version of Ulf's parser to
8759 read the ANSI prototypes in all header files (thus the old K&R definitions
8760 aren't needed for error creation any more) and do a better job of
8761 translating function codes into names. The old 'ASN1 error code imbedded
8762 in a comment' is no longer necessary and it doesn't use .err files which
8763 have now been deleted. Also the error code call doesn't have to appear all
8764 on one line (which resulted in some large lines...).
8767 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8770 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8771 0 (which usually indicates a closed connection), but continue reading.
8774 *) Fix some race conditions.
8777 *) Add support for CRL distribution points extension. Add Certificate
8778 Policies and CRL distribution points documentation.
8781 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8784 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8785 8 of keying material. Merlin has also confirmed interop with this fix
8786 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8787 [Merlin Hughes <merlin@baltimore.ie>]
8789 *) Fix lots of warnings.
8790 [Richard Levitte <levitte@stacken.kth.se>]
8792 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8793 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8794 [Richard Levitte <levitte@stacken.kth.se>]
8796 *) Fix problems with sizeof(long) == 8.
8797 [Andy Polyakov <appro@fy.chalmers.se>]
8799 *) Change functions to ANSI C.
8802 *) Fix typos in error codes.
8803 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8805 *) Remove defunct assembler files from Configure.
8808 *) SPARC v8 assembler BIGNUM implementation.
8809 [Andy Polyakov <appro@fy.chalmers.se>]
8811 *) Support for Certificate Policies extension: both print and set.
8812 Various additions to support the r2i method this uses.
8815 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8816 return a const string when you are expecting an allocated buffer.
8819 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8820 types DirectoryString and DisplayText.
8823 *) Add code to allow r2i extensions to access the configuration database,
8824 add an LHASH database driver and add several ctx helper functions.
8827 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8828 fail when they extended the size of a BIGNUM.
8831 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8832 support typesafe stack.
8835 *) Fix typo in SSL_[gs]et_options().
8836 [Nils Frostberg <nils@medcom.se>]
8838 *) Delete various functions and files that belonged to the (now obsolete)
8839 old X509V3 handling code.
8842 *) New Configure option "rsaref".
8845 *) Don't auto-generate pem.h.
8848 *) Introduce type-safe ASN.1 SETs.
8851 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8852 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8854 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8855 that links with OpenSSL (well at least cause lots of warnings), but fear
8856 not: the conversion is trivial, and it eliminates loads of evil casts. A
8857 few STACKed things have been converted already. Feel free to convert more.
8858 In the fullness of time, I'll do away with the STACK type altogether.
8861 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8862 specified in <certfile> by updating the entry in the index.txt file.
8863 This way one no longer has to edit the index.txt file manually for
8864 revoking a certificate. The -revoke option does the gory details now.
8865 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8867 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8868 `-text' option at all and this way the `-noout -text' combination was
8869 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8870 [Ralf S. Engelschall]
8872 *) Make sure a corresponding plain text error message exists for the
8873 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8874 verify callback function determined that a certificate was revoked.
8875 [Ralf S. Engelschall]
8877 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8878 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8879 all available cipers including rc5, which was forgotten until now.
8880 In order to let the testing shell script know which algorithms
8881 are available, a new (up to now undocumented) command
8882 "openssl list-cipher-commands" is used.
8885 *) Bugfix: s_client occasionally would sleep in select() when
8886 it should have checked SSL_pending() first.
8889 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8890 the raw DSA values prior to ASN.1 encoding.
8893 *) Tweaks to Configure
8894 [Niels Poppe <niels@netbox.org>]
8896 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8900 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8903 *) New config option to avoid instructions that are illegal on the 80386.
8904 The default code is faster, but requires at least a 486.
8907 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8908 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8909 same as SSL2_VERSION anyway.
8912 *) New "-showcerts" option for s_client.
8915 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8916 application. Various cleanups and fixes.
8919 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8920 modify error routines to work internally. Add error codes and PBE init
8921 to library startup routines.
8924 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8925 packing functions to asn1 and evp. Changed function names and error
8926 codes along the way.
8929 *) PKCS12 integration: and so it begins... First of several patches to
8930 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8931 objects to objects.h
8934 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8935 and display support for Thawte strong extranet extension.
8938 *) Add LinuxPPC support.
8939 [Jeff Dubrule <igor@pobox.org>]
8941 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8942 bn_div_words in alpha.s.
8943 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8945 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8946 OAEP isn't supported when OpenSSL is built with RSAref.
8947 [Ulf Moeller <ulf@fitug.de>]
8949 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8950 so they no longer are missing under -DNOPROTO.
8951 [Soren S. Jorvang <soren@t.dk>]
8954 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8956 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8957 doesn't work when the session is reused. Coming soon!
8960 *) Fix a security hole, that allows sessions to be reused in the wrong
8961 context thus bypassing client cert protection! All software that uses
8962 client certs and session caches in multiple contexts NEEDS PATCHING to
8963 allow session reuse! A fuller solution is in the works.
8964 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8966 *) Some more source tree cleanups (removed obsolete files
8967 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8968 permission on "config" script to be executable) and a fix for the INSTALL
8970 [Ulf Moeller <ulf@fitug.de>]
8972 *) Remove some legacy and erroneous uses of malloc, free instead of
8974 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8976 *) Make rsa_oaep_test return non-zero on error.
8977 [Ulf Moeller <ulf@fitug.de>]
8979 *) Add support for native Solaris shared libraries. Configure
8980 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8981 if someone would make that last step automatic.
8982 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8984 *) ctx_size was not built with the right compiler during "make links". Fixed.
8987 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8988 except NULL ciphers". This means the default cipher list will no longer
8989 enable NULL ciphers. They need to be specifically enabled e.g. with
8990 the string "DEFAULT:eNULL".
8993 *) Fix to RSA private encryption routines: if p < q then it would
8994 occasionally produce an invalid result. This will only happen with
8995 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8998 *) Be less restrictive and allow also `perl util/perlpath.pl
8999 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9000 because this way one can also use an interpreter named `perl5' (which is
9001 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9002 installed as `perl').
9003 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9005 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9006 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9008 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9009 advapi32.lib to Win32 build and change the pem test comparision
9010 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9011 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9012 and crypto/des/ede_cbcm_enc.c.
9015 *) DES quad checksum was broken on big-endian architectures. Fixed.
9018 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9019 Win32 test batch file so it (might) work again. The Win32 test batch file
9020 is horrible: I feel ill....
9023 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9024 in e_os.h. Audit of header files to check ANSI and non ANSI
9025 sections: 10 functions were absent from non ANSI section and not exported
9026 from Windows DLLs. Fixed up libeay.num for new functions.
9029 *) Make `openssl version' output lines consistent.
9030 [Ralf S. Engelschall]
9032 *) Fix Win32 symbol export lists for BIO functions: Added
9033 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9034 to ms/libeay{16,32}.def.
9035 [Ralf S. Engelschall]
9037 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9038 fine under Unix and passes some trivial tests I've now added. But the
9039 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9040 added to make sure no one expects that this stuff really works in the
9041 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9042 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9044 [Ralf S. Engelschall]
9046 *) Fix the generation of two part addresses in perl.
9047 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9049 *) Add config entry for Linux on MIPS.
9050 [John Tobey <jtobey@channel1.com>]
9052 *) Make links whenever Configure is run, unless we are on Windoze.
9055 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9056 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9060 *) Add a useful kludge to allow package maintainers to specify compiler and
9061 other platforms details on the command line without having to patch the
9062 Configure script everytime: One now can use ``perl Configure
9063 <id>:<details>'', i.e. platform ids are allowed to have details appended
9064 to them (seperated by colons). This is treated as there would be a static
9065 pre-configured entry in Configure's %table under key <id> with value
9066 <details> and ``perl Configure <id>'' is called. So, when you want to
9067 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9068 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9069 now, which overrides the FreeBSD-elf entry on-the-fly.
9070 [Ralf S. Engelschall]
9072 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9075 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9076 on the `perl Configure ...' command line. This way one can compile
9077 OpenSSL libraries with Position Independent Code (PIC) which is needed
9078 for linking it into DSOs.
9079 [Ralf S. Engelschall]
9081 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9085 *) Cleaned up the LICENSE document: The official contact for any license
9086 questions now is the OpenSSL core team under openssl-core@openssl.org.
9087 And add a paragraph about the dual-license situation to make sure people
9088 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9089 to the OpenSSL toolkit.
9090 [Ralf S. Engelschall]
9092 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9093 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9094 Additonally cleaned up the `make links' target: Remove unnecessary
9095 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9096 to speed processing and no longer clutter the display with confusing
9097 stuff. Instead only the actually done links are displayed.
9098 [Ralf S. Engelschall]
9100 *) Permit null encryption ciphersuites, used for authentication only. It used
9101 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9102 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9106 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9107 signed attributes when verifying signatures (this would break them),
9108 the detached data encoding was wrong and public keys obtained using
9109 X509_get_pubkey() weren't freed.
9112 *) Add text documentation for the BUFFER functions. Also added a work around
9113 to a Win95 console bug. This was triggered by the password read stuff: the
9114 last character typed gets carried over to the next fread(). If you were
9115 generating a new cert request using 'req' for example then the last
9116 character of the passphrase would be CR which would then enter the first
9120 *) Added the new `Includes OpenSSL Cryptography Software' button as
9121 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9122 button and can be used by applications based on OpenSSL to show the
9123 relationship to the OpenSSL project.
9124 [Ralf S. Engelschall]
9126 *) Remove confusing variables in function signatures in files
9127 ssl/ssl_lib.c and ssl/ssl.h.
9128 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9130 *) Don't install bss_file.c under PREFIX/include/
9131 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9133 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9134 functions that return function pointers and has support for NT specific
9135 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9136 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9137 unsigned to signed types: this was killing the Win32 compile.
9140 *) Add new certificate file to stack functions,
9141 SSL_add_dir_cert_subjects_to_stack() and
9142 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9143 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9144 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9145 This means that Apache-SSL and similar packages don't have to mess around
9146 to add as many CAs as they want to the preferred list.
9149 *) Experiment with doxygen documentation. Currently only partially applied to
9151 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9152 openssl.doxy as the configuration file.
9155 *) Get rid of remaining C++-style comments which strict C compilers hate.
9156 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9158 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9159 compiled in by default: it has problems with large keys.
9162 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9163 DH private keys and/or callback functions which directly correspond to
9164 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9165 is needed for applications which have to configure certificates on a
9166 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9168 For the RSA certificate situation is makes no difference, but
9169 for the DSA certificate situation this fixes the "no shared cipher"
9170 problem where the OpenSSL cipher selection procedure failed because the
9171 temporary keys were not overtaken from the context and the API provided
9172 no way to reconfigure them.
9173 The new functions now let applications reconfigure the stuff and they
9174 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9175 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9176 non-public-API function ssl_cert_instantiate() is used as a helper
9177 function and also to reduce code redundancy inside ssl_rsa.c.
9178 [Ralf S. Engelschall]
9180 *) Move s_server -dcert and -dkey options out of the undocumented feature
9181 area because they are useful for the DSA situation and should be
9182 recognized by the users.
9183 [Ralf S. Engelschall]
9185 *) Fix the cipher decision scheme for export ciphers: the export bits are
9186 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9187 SSL_EXP_MASK. So, the original variable has to be used instead of the
9188 already masked variable.
9189 [Richard Levitte <levitte@stacken.kth.se>]
9191 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9192 [Richard Levitte <levitte@stacken.kth.se>]
9194 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9195 from `int' to `unsigned int' because it's a length and initialized by
9196 EVP_DigestFinal() which expects an `unsigned int *'.
9197 [Richard Levitte <levitte@stacken.kth.se>]
9199 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9200 script. Instead use the usual Shell->Perl transition trick.
9201 [Ralf S. Engelschall]
9203 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9204 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9205 -noout -modulus' as it's already the case for `openssl rsa -noout
9206 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9207 currently the public key is printed (a decision which was already done by
9208 `openssl dsa -modulus' in the past) which serves a similar purpose.
9209 Additionally the NO_RSA no longer completely removes the whole -modulus
9210 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9212 [Ralf S. Engelschall]
9214 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9215 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9216 [Arne Ansper <arne@ats.cyber.ee>]
9218 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9219 to be added. Now both 'req' and 'ca' can use new objects defined in the
9223 *) Add cool BIO that does syslog (or event log on NT).
9224 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9226 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9227 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9228 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9229 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9232 *) Add preliminary config info for new extension code.
9235 *) Make RSA_NO_PADDING really use no padding.
9236 [Ulf Moeller <ulf@fitug.de>]
9238 *) Generate errors when private/public key check is done.
9241 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9242 for some CRL extensions and new objects added.
9245 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9246 key usage extension and fuller support for authority key id.
9249 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9250 padding method for RSA, which is recommended for new applications in PKCS
9251 #1 v2.0 (RFC 2437, October 1998).
9252 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9253 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9254 against Bleichbacher's attack on RSA.
9255 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9258 *) Updates to the new SSL compression code
9259 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9261 *) Fix so that the version number in the master secret, when passed
9262 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9263 (because the server will not accept higher), that the version number
9264 is 0x03,0x01, not 0x03,0x00
9265 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9267 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9268 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9269 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9272 *) Support for RAW extensions where an arbitrary extension can be
9273 created by including its DER encoding. See apps/openssl.cnf for
9277 *) Make sure latest Perl versions don't interpret some generated C array
9278 code as Perl array code in the crypto/err/err_genc.pl script.
9279 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9281 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9282 not many people have the assembler. Various Win32 compilation fixes and
9283 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9287 *) Modify configure script 'Configure' to automatically create crypto/date.h
9288 file under Win32 and also build pem.h from pem.org. New script
9289 util/mkfiles.pl to create the MINFO file on environments that can't do a
9290 'make files': perl util/mkfiles.pl >MINFO should work.
9293 *) Major rework of DES function declarations, in the pursuit of correctness
9294 and purity. As a result, many evil casts evaporated, and some weirdness,
9295 too. You may find this causes warnings in your code. Zapping your evil
9296 casts will probably fix them. Mostly.
9299 *) Fix for a typo in asn1.h. Bug fix to object creation script
9300 obj_dat.pl. It considered a zero in an object definition to mean
9301 "end of object": none of the objects in objects.h have any zeros
9302 so it wasn't spotted.
9303 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9305 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9306 Masking (CBCM). In the absence of test vectors, the best I have been able
9307 to do is check that the decrypt undoes the encrypt, so far. Send me test
9308 vectors if you have them.
9311 *) Correct calculation of key length for export ciphers (too much space was
9312 allocated for null ciphers). This has not been tested!
9315 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9316 message is now correct (it understands "crypto" and "ssl" on its
9317 command line). There is also now an "update" option. This will update
9318 the util/ssleay.num and util/libeay.num files with any new functions.
9320 perl util/mkdef.pl crypto ssl update
9321 it will update them.
9324 *) Overhauled the Perl interface (perl/*):
9325 - ported BN stuff to OpenSSL's different BN library
9326 - made the perl/ source tree CVS-aware
9327 - renamed the package from SSLeay to OpenSSL (the files still contain
9328 their history because I've copied them in the repository)
9329 - removed obsolete files (the test scripts will be replaced
9330 by better Test::Harness variants in the future)
9331 [Ralf S. Engelschall]
9333 *) First cut for a very conservative source tree cleanup:
9334 1. merge various obsolete readme texts into doc/ssleay.txt
9335 where we collect the old documents and readme texts.
9336 2. remove the first part of files where I'm already sure that we no
9337 longer need them because of three reasons: either they are just temporary
9338 files which were left by Eric or they are preserved original files where
9339 I've verified that the diff is also available in the CVS via "cvs diff
9340 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9341 the crypto/md/ stuff).
9342 [Ralf S. Engelschall]
9344 *) More extension code. Incomplete support for subject and issuer alt
9345 name, issuer and authority key id. Change the i2v function parameters
9346 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9347 what that's for :-) Fix to ASN1 macro which messed up
9348 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9351 *) Preliminary support for ENUMERATED type. This is largely copied from the
9355 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9356 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9358 *) Make sure `make rehash' target really finds the `openssl' program.
9359 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9361 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9362 like to hear about it if this slows down other processors.
9365 *) Add CygWin32 platform information to Configure script.
9366 [Alan Batie <batie@aahz.jf.intel.com>]
9368 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9369 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9371 *) New program nseq to manipulate netscape certificate sequences
9374 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9378 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9379 but the BN code had some problems that would cause failures when
9380 doing certificate verification and some other functions.
9381 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9383 *) Add ASN1 and PEM code to support netscape certificate sequences.
9386 *) Add ASN1 and PEM code to support netscape certificate sequences.
9389 *) Add several PKIX and private extended key usage OIDs.
9392 *) Modify the 'ca' program to handle the new extension code. Modify
9393 openssl.cnf for new extension format, add comments.
9396 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9397 and add a sample to openssl.cnf so req -x509 now adds appropriate
9401 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9402 error code, add initial support to X509_print() and x509 application.
9405 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9406 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9407 stuff is currently isolated and isn't even compiled yet.
9410 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9411 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9412 Removed the versions check from X509 routines when loading extensions:
9413 this allows certain broken certificates that don't set the version
9414 properly to be processed.
9417 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9418 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9419 can still be regenerated with "make depend".
9422 *) Spelling mistake in C version of CAST-128.
9423 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9425 *) Changes to the error generation code. The perl script err-code.pl
9426 now reads in the old error codes and retains the old numbers, only
9427 adding new ones if necessary. It also only changes the .err files if new
9428 codes are added. The makefiles have been modified to only insert errors
9429 when needed (to avoid needlessly modifying header files). This is done
9430 by only inserting errors if the .err file is newer than the auto generated
9431 C file. To rebuild all the error codes from scratch (the old behaviour)
9432 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9433 or delete all the .err files.
9436 *) CAST-128 was incorrectly implemented for short keys. The C version has
9437 been fixed, but is untested. The assembler versions are also fixed, but
9438 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9439 to regenerate it if needed.
9440 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9441 Hagino <itojun@kame.net>]
9443 *) File was opened incorrectly in randfile.c.
9444 [Ulf Möller <ulf@fitug.de>]
9446 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9447 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9448 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9449 al: it's just almost always a UTCTime. Note this patch adds new error
9450 codes so do a "make errors" if there are problems.
9453 *) Correct Linux 1 recognition in config.
9454 [Ulf Möller <ulf@fitug.de>]
9456 *) Remove pointless MD5 hash when using DSA keys in ca.
9457 [Anonymous <nobody@replay.com>]
9459 *) Generate an error if given an empty string as a cert directory. Also
9460 generate an error if handed NULL (previously returned 0 to indicate an
9461 error, but didn't set one).
9462 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9464 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9467 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9468 parameters. This was causing a warning which killed off the Win32 compile.
9471 *) Remove C++ style comments from crypto/bn/bn_local.h.
9472 [Neil Costigan <neil.costigan@celocom.com>]
9474 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9475 based on a text string, looking up short and long names and finally
9476 "dot" format. The "dot" format stuff didn't work. Added new function
9477 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9478 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9479 OID is not part of the table.
9482 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9483 X509_LOOKUP_by_alias().
9486 *) Sort openssl functions by name.
9489 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9490 encryption from sample DSA keys (in case anyone is interested the password
9494 *) Make _all_ *_free functions accept a NULL pointer.
9495 [Frans Heymans <fheymans@isaserver.be>]
9497 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9499 [Anonymous <nobody@replay.com>]
9501 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9502 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9504 *) Don't blow it for numeric -newkey arguments to apps/req.
9505 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9507 *) Temp key "for export" tests were wrong in s3_srvr.c.
9508 [Anonymous <nobody@replay.com>]
9510 *) Add prototype for temp key callback functions
9511 SSL_CTX_set_tmp_{rsa,dh}_callback().
9514 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9515 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9518 *) X509_name_add_entry() freed the wrong thing after an error.
9519 [Arne Ansper <arne@ats.cyber.ee>]
9521 *) rsa_eay.c would attempt to free a NULL context.
9522 [Arne Ansper <arne@ats.cyber.ee>]
9524 *) BIO_s_socket() had a broken should_retry() on Windoze.
9525 [Arne Ansper <arne@ats.cyber.ee>]
9527 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9528 [Arne Ansper <arne@ats.cyber.ee>]
9530 *) Make sure the already existing X509_STORE->depth variable is initialized
9531 in X509_STORE_new(), but document the fact that this variable is still
9532 unused in the certificate verification process.
9533 [Ralf S. Engelschall]
9535 *) Fix the various library and apps files to free up pkeys obtained from
9536 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9539 *) Fix reference counting in X509_PUBKEY_get(). This makes
9540 demos/maurice/example2.c work, amongst others, probably.
9541 [Steve Henson and Ben Laurie]
9543 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9544 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9545 are no longer created. This way we have a single and consistent command
9546 line interface `openssl <command>', similar to `cvs <command>'.
9547 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9549 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9550 BIT STRING wrapper always have zero unused bits.
9553 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9556 *) Make the top-level INSTALL documentation easier to understand.
9559 *) Makefiles updated to exit if an error occurs in a sub-directory
9560 make (including if user presses ^C) [Paul Sutton]
9562 *) Make Montgomery context stuff explicit in RSA data structure.
9565 *) Fix build order of pem and err to allow for generated pem.h.
9568 *) Fix renumbering bug in X509_NAME_delete_entry().
9571 *) Enhanced the err-ins.pl script so it makes the error library number
9572 global and can add a library name. This is needed for external ASN1 and
9573 other error libraries.
9576 *) Fixed sk_insert which never worked properly.
9579 *) Fix ASN1 macros so they can handle indefinite length construted
9580 EXPLICIT tags. Some non standard certificates use these: they can now
9584 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9585 into a single doc/ssleay.txt bundle. This way the information is still
9586 preserved but no longer messes up this directory. Now it's new room for
9587 the new set of documenation files.
9588 [Ralf S. Engelschall]
9590 *) SETs were incorrectly DER encoded. This was a major pain, because they
9591 shared code with SEQUENCEs, which aren't coded the same. This means that
9592 almost everything to do with SETs or SEQUENCEs has either changed name or
9593 number of arguments.
9594 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9596 *) Fix test data to work with the above.
9599 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9600 was already fixed by Eric for 0.9.1 it seems.
9601 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9603 *) Autodetect FreeBSD3.
9606 *) Fix various bugs in Configure. This affects the following platforms:
9610 unixware-2.0-pentium
9614 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9615 before they are needed.
9618 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9622 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9624 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9625 changed SSLeay to OpenSSL in version strings.
9626 [Ralf S. Engelschall]
9628 *) Some fixups to the top-level documents.
9631 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9632 because the symlink to include/ was missing.
9633 [Ralf S. Engelschall]
9635 *) Incorporated the popular no-RSA/DSA-only patches
9636 which allow to compile a RSA-free SSLeay.
9637 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9639 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9640 when "ssleay" is still not found.
9641 [Ralf S. Engelschall]
9643 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9644 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9646 *) Updated the README file.
9647 [Ralf S. Engelschall]
9649 *) Added various .cvsignore files in the CVS repository subdirs
9650 to make a "cvs update" really silent.
9651 [Ralf S. Engelschall]
9653 *) Recompiled the error-definition header files and added
9654 missing symbols to the Win32 linker tables.
9655 [Ralf S. Engelschall]
9657 *) Cleaned up the top-level documents;
9658 o new files: CHANGES and LICENSE
9659 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9660 o merged COPYRIGHT into LICENSE
9661 o removed obsolete TODO file
9662 o renamed MICROSOFT to INSTALL.W32
9663 [Ralf S. Engelschall]
9665 *) Removed dummy files from the 0.9.1b source tree:
9666 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9667 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9668 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9669 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9670 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9671 [Ralf S. Engelschall]
9673 *) Added various platform portability fixes.
9676 *) The Genesis of the OpenSSL rpject:
9677 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9678 Young and Tim J. Hudson created while they were working for C2Net until
9680 [The OpenSSL Project]
9683 Changes between 0.9.0b and 0.9.1b [not released]
9685 *) Updated a few CA certificates under certs/
9688 *) Changed some BIGNUM api stuff.
9691 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9692 DGUX x86, Linux Alpha, etc.
9695 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9696 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9700 *) Add -strparse option to asn1pars program which parses nested
9702 [Dr Stephen Henson <shenson@bigfoot.com>]
9704 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9707 *) DSA fix for "ca" program.
9710 *) Added "-genkey" option to "dsaparam" program.
9713 *) Added RIPE MD160 (rmd160) message digest.
9716 *) Added -a (all) option to "ssleay version" command.
9719 *) Added PLATFORM define which is the id given to Configure.
9722 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9725 *) Extended the ASN.1 parser routines.
9728 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9731 *) Added a BN_CTX to the BN library.
9734 *) Fixed the weak key values in DES library
9737 *) Changed API in EVP library for cipher aliases.
9740 *) Added support for RC2/64bit cipher.
9743 *) Converted the lhash library to the crypto/mem.c functions.
9746 *) Added more recognized ASN.1 object ids.
9749 *) Added more RSA padding checks for SSL/TLS.
9752 *) Added BIO proxy/filter functionality.
9755 *) Added extra_certs to SSL_CTX which can be used
9756 send extra CA certificates to the client in the CA cert chain sending
9757 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9760 *) Now Fortezza is denied in the authentication phase because
9761 this is key exchange mechanism is not supported by SSLeay at all.
9764 *) Additional PKCS1 checks.
9767 *) Support the string "TLSv1" for all TLS v1 ciphers.
9770 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9771 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9774 *) Fixed a few memory leaks.
9777 *) Fixed various code and comment typos.
9780 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9781 bytes sent in the client random.
9782 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob