5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) If a candidate issuer certificate is already part of the constructed
8 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
11 *) Improve forward-security support: add functions
13 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
14 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
16 for use by SSL/TLS servers; the callback function will be called whenever a
17 new session is created, and gets to decide whether the session may be
18 cached to make it resumable (return 0) or not (return 1). (As by the
19 SSL/TLS protocol specifications, the session_id sent by the server will be
20 empty to indicate that the session is not resumable; also, the server will
21 not generate RFC 4507 (RFC 5077) session tickets.)
23 A simple reasonable callback implementation is to return is_forward_secure.
24 This parameter will be set to 1 or 0 depending on the ciphersuite selected
25 by the SSL/TLS server library, indicating whether it can provide forward
27 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
29 *) Add Next Protocol Negotiation,
30 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
31 disabled with a no-npn flag to config or Configure. Code donated
33 [Adam Langley <agl@google.com> and Ben Laurie]
35 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
36 all platforms. Move ssize_t definition from e_os.h to the public
37 header file e_os2.h as it now appears in public header file cms.h
40 *) New function OPENSSL_gmtime_diff to find the difference in days
41 and seconds between two tm structures. This will be used to provide
42 additional functionality for ASN1_TIME.
45 *) New -sigopt option to the ca, req and x509 utilities. Additional
46 signature parameters can be passed using this option and in
50 *) Add RSA PSS signing function. This will generate and set the
51 appropriate AlgorithmIdentifiers for PSS based on those in the
52 corresponding EVP_MD_CTX structure. No application support yet.
55 *) Support for companion algorithm specific ASN1 signing routines.
56 New function ASN1_item_sign_ctx() signs a pre-initialised
57 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
58 the appropriate parameters.
61 *) Add new algorithm specific ASN1 verification initialisation function
62 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
63 handling will be the same no matter what EVP_PKEY_METHOD is used.
64 Add a PSS handler to support verification of PSS signatures: checked
65 against a number of sample certificates.
68 *) Add signature printing for PSS. Add PSS OIDs.
69 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
71 *) Add algorithm specific signature printing. An individual ASN1 method
72 can now print out signatures instead of the standard hex dump.
74 More complex signatures (e.g. PSS) can print out more meaningful
75 information. Include DSA version that prints out the signature
79 *) Add -trusted_first option which attempts to find certificates in the
80 trusted store even if an untrusted chain is also supplied.
83 *) Initial experimental support for explicitly trusted non-root CAs.
84 OpenSSL still tries to build a complete chain to a root but if an
85 intermediate CA has a trust setting included that is used. The first
86 setting is used: whether to trust or reject.
89 *) New -verify_name option in command line utilities to set verification
93 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
94 Add CMAC pkey methods.
97 *) Experiemental regnegotiation in s_server -www mode. If the client
98 browses /reneg connection is renegotiated. If /renegcert it is
99 renegotiated requesting a certificate.
102 *) Add an "external" session cache for debugging purposes to s_server. This
103 should help trace issues which normally are only apparent in deployed
104 multi-process servers.
107 *) Experiemental password based recipient info support for CMS library:
108 implementing RFC3211.
111 *) Split password based encryption into PBES2 and PBKDF2 functions. This
112 neatly separates the code into cipher and PBE sections and is required
113 for some algorithms that split PBES2 into separate pieces (such as
117 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
118 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
119 BIO_set_cipher() and some obscure PEM functions were changed so they
120 can now return an error. The RAND changes required a change to the
121 RAND_METHOD structure.
124 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
125 a gcc attribute to warn if the result of a function is ignored. This
126 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
127 whose return value is often ignored.
130 Changes between 1.0.0c and 1.0.1 [xx XXX xxxx]
132 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
135 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
136 elliptic curve NIST-P224 with constant-time single point multiplication on
137 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
138 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
139 flexible implementations).
141 The implementation requires support for the nonstandard type __uint128_t,
142 and so is disabled by default. To include this in your build of OpenSSL,
143 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
144 and run "make depend" (or "make update").
145 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
147 *) Permit abbreviated handshakes when renegotiating using the function
148 SSL_renegotiate_abbreviated().
149 [Robin Seggelmann <seggelmann@fh-muenster.de>]
151 *) Add call to ENGINE_register_all_complete() to
152 ENGINE_load_builtin_engines(), so some implementations get used
153 automatically instead of needing explicit application support.
156 *) Add support for TLS key exporter as described in RFC5705.
157 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
159 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
160 a few changes are required:
162 Add SSL_OP_NO_TLSv1_1 flag.
164 Update version checking logic to handle version 1.1.
165 Add explicit IV handling (ported from DTLS code).
166 Add command line options to s_client/s_server.
169 Changes between 1.0.0c and 1.0.0d [xx XXX xxxx]
171 *) Fix bug in string printing code: if *any* escaping is enabled we must
172 escape the escape character (backslash) or the resulting string is
176 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
178 *) Fixed J-PAKE implementation error, originally discovered by
179 Sebastien Martini, further info and confirmation from Stefan
180 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
183 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
185 *) Fix extension code to avoid race conditions which can result in a buffer
186 overrun vulnerability: resumed sessions must not be modified as they can
187 be shared by multiple threads. CVE-2010-3864
189 *) Fix WIN32 build system to correctly link an ENGINE directory into
193 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
195 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
197 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
199 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
201 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
202 context. The operation can be customised via the ctrl mechanism in
203 case ENGINEs want to include additional functionality.
206 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
209 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
210 output hashes compatible with older versions of OpenSSL.
211 [Willy Weisz <weisz@vcpc.univie.ac.at>]
213 *) Fix compression algorithm handling: if resuming a session use the
214 compression algorithm of the resumed session instead of determining
215 it from client hello again. Don't allow server to change algorithm.
218 *) Add load_crls() function to apps tidying load_certs() too. Add option
219 to verify utility to allow additional CRLs to be included.
222 *) Update OCSP request code to permit adding custom headers to the request:
223 some responders need this.
226 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
228 [Julia Lawall <julia@diku.dk>]
230 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
231 needlessly dereferenced structures, used obsolete functions and
232 didn't handle all updated verify codes correctly.
235 *) Disable MD2 in the default configuration.
238 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
239 indicate the initial BIO being pushed or popped. This makes it possible
240 to determine whether the BIO is the one explicitly called or as a result
241 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
242 it handles reference counts correctly and doesn't zero out the I/O bio
243 when it is not being explicitly popped. WARNING: applications which
244 included workarounds for the old buggy behaviour will need to be modified
245 or they could free up already freed BIOs.
248 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
249 renaming to all platforms (within the 0.9.8 branch, this was
250 done conditionally on Netware platforms to avoid a name clash).
251 [Guenter <lists@gknw.net>]
253 *) Add ECDHE and PSK support to DTLS.
254 [Michael Tuexen <tuexen@fh-muenster.de>]
256 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
260 *) Add "missing" function EVP_MD_flags() (without this the only way to
261 retrieve a digest flags is by accessing the structure directly. Update
262 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
263 or cipher is registered as in the "from" argument. Print out all
264 registered digests in the dgst usage message instead of manually
265 attempting to work them out.
268 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
269 this allows the use of compression and extensions. Change default cipher
270 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
271 by default unless an application cipher string requests it.
274 *) Alter match criteria in PKCS12_parse(). It used to try to use local
275 key ids to find matching certificates and keys but some PKCS#12 files
276 don't follow the (somewhat unwritten) rules and this strategy fails.
277 Now just gather all certificates together and the first private key
278 then look for the first certificate that matches the key.
281 *) Support use of registered digest and cipher names for dgst and cipher
282 commands instead of having to add each one as a special case. So now
289 openssl dgst -sha256 foo
291 and this works for ENGINE based algorithms too.
295 *) Update Gost ENGINE to support parameter files.
296 [Victor B. Wagner <vitus@cryptocom.ru>]
298 *) Support GeneralizedTime in ca utility.
299 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
301 *) Enhance the hash format used for certificate directory links. The new
302 form uses the canonical encoding (meaning equivalent names will work
303 even if they aren't identical) and uses SHA1 instead of MD5. This form
304 is incompatible with the older format and as a result c_rehash should
305 be used to rebuild symbolic links.
308 *) Make PKCS#8 the default write format for private keys, replacing the
309 traditional format. This form is standardised, more secure and doesn't
310 include an implicit MD5 dependency.
313 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
314 committed to OpenSSL should pass this lot as a minimum.
317 *) Add session ticket override functionality for use by EAP-FAST.
318 [Jouni Malinen <j@w1.fi>]
320 *) Modify HMAC functions to return a value. Since these can be implemented
321 in an ENGINE errors can occur.
324 *) Type-checked OBJ_bsearch_ex.
327 *) Type-checked OBJ_bsearch. Also some constification necessitated
328 by type-checking. Still to come: TXT_DB, bsearch(?),
329 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
333 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
334 seconds to a tm structure directly, instead of going through OS
335 specific date routines. This avoids any issues with OS routines such
336 as the year 2038 bug. New *_adj() functions for ASN1 time structures
337 and X509_time_adj_ex() to cover the extended range. The existing
338 X509_time_adj() is still usable and will no longer have any date issues.
341 *) Delta CRL support. New use deltas option which will attempt to locate
342 and search any appropriate delta CRLs available.
344 This work was sponsored by Google.
347 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
348 code and add additional score elements. Validate alternate CRL paths
349 as part of the CRL checking and indicate a new error "CRL path validation
350 error" in this case. Applications wanting additional details can use
351 the verify callback and check the new "parent" field. If this is not
352 NULL CRL path validation is taking place. Existing applications wont
353 see this because it requires extended CRL support which is off by
356 This work was sponsored by Google.
359 *) Support for freshest CRL extension.
361 This work was sponsored by Google.
364 *) Initial indirect CRL support. Currently only supported in the CRLs
365 passed directly and not via lookup. Process certificate issuer
366 CRL entry extension and lookup CRL entries by bother issuer name
367 and serial number. Check and process CRL issuer entry in IDP extension.
369 This work was sponsored by Google.
372 *) Add support for distinct certificate and CRL paths. The CRL issuer
373 certificate is validated separately in this case. Only enabled if
374 an extended CRL support flag is set: this flag will enable additional
375 CRL functionality in future.
377 This work was sponsored by Google.
380 *) Add support for policy mappings extension.
382 This work was sponsored by Google.
385 *) Fixes to pathlength constraint, self issued certificate handling,
386 policy processing to align with RFC3280 and PKITS tests.
388 This work was sponsored by Google.
391 *) Support for name constraints certificate extension. DN, email, DNS
392 and URI types are currently supported.
394 This work was sponsored by Google.
397 *) To cater for systems that provide a pointer-based thread ID rather
398 than numeric, deprecate the current numeric thread ID mechanism and
399 replace it with a structure and associated callback type. This
400 mechanism allows a numeric "hash" to be extracted from a thread ID in
401 either case, and on platforms where pointers are larger than 'long',
402 mixing is done to help ensure the numeric 'hash' is usable even if it
403 can't be guaranteed unique. The default mechanism is to use "&errno"
404 as a pointer-based thread ID to distinguish between threads.
406 Applications that want to provide their own thread IDs should now use
407 CRYPTO_THREADID_set_callback() to register a callback that will call
408 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
410 Note that ERR_remove_state() is now deprecated, because it is tied
411 to the assumption that thread IDs are numeric. ERR_remove_state(0)
412 to free the current thread's error state should be replaced by
413 ERR_remove_thread_state(NULL).
415 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
416 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
417 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
418 application was previously providing a numeric thread callback that
419 was inappropriate for distinguishing threads, then uniqueness might
420 have been obtained with &errno that happened immediately in the
421 intermediate development versions of OpenSSL; this is no longer the
422 case, the numeric thread callback will now override the automatic use
424 [Geoff Thorpe, with help from Bodo Moeller]
426 *) Initial support for different CRL issuing certificates. This covers a
427 simple case where the self issued certificates in the chain exist and
428 the real CRL issuer is higher in the existing chain.
430 This work was sponsored by Google.
433 *) Removed effectively defunct crypto/store from the build.
436 *) Revamp of STACK to provide stronger type-checking. Still to come:
437 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
438 ASN1_STRING, CONF_VALUE.
441 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
442 RAM on SSL connections. This option can save about 34k per idle SSL.
445 *) Revamp of LHASH to provide stronger type-checking. Still to come:
446 STACK, TXT_DB, bsearch, qsort.
449 *) Initial support for Cryptographic Message Syntax (aka CMS) based
450 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
451 support for data, signedData, compressedData, digestedData and
452 encryptedData, envelopedData types included. Scripts to check against
453 RFC4134 examples draft and interop and consistency checks of many
454 content types and variants.
457 *) Add options to enc utility to support use of zlib compression BIO.
460 *) Extend mk1mf to support importing of options and assembly language
461 files from Configure script, currently only included in VC-WIN32.
462 The assembly language rules can now optionally generate the source
463 files from the associated perl scripts.
466 *) Implement remaining functionality needed to support GOST ciphersuites.
467 Interop testing has been performed using CryptoPro implementations.
468 [Victor B. Wagner <vitus@cryptocom.ru>]
470 *) s390x assembler pack.
473 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
477 *) Implement Opaque PRF Input TLS extension as specified in
478 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
479 official specification yet and no extension type assignment by
480 IANA exists, this extension (for now) will have to be explicitly
481 enabled when building OpenSSL by providing the extension number
482 to use. For example, specify an option
484 -DTLSEXT_TYPE_opaque_prf_input=0x9527
486 to the "config" or "Configure" script to enable the extension,
487 assuming extension number 0x9527 (which is a completely arbitrary
488 and unofficial assignment based on the MD5 hash of the Internet
489 Draft). Note that by doing so, you potentially lose
490 interoperability with other TLS implementations since these might
491 be using the same extension number for other purposes.
493 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
494 opaque PRF input value to use in the handshake. This will create
495 an interal copy of the length-'len' string at 'src', and will
496 return non-zero for success.
498 To get more control and flexibility, provide a callback function
501 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
502 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
506 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
509 Callback function 'cb' will be called in handshakes, and is
510 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
511 Argument 'arg' is for application purposes (the value as given to
512 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
513 be provided to the callback function). The callback function
514 has to return non-zero to report success: usually 1 to use opaque
515 PRF input just if possible, or 2 to enforce use of the opaque PRF
516 input. In the latter case, the library will abort the handshake
517 if opaque PRF input is not successfully negotiated.
519 Arguments 'peerinput' and 'len' given to the callback function
520 will always be NULL and 0 in the case of a client. A server will
521 see the client's opaque PRF input through these variables if
522 available (NULL and 0 otherwise). Note that if the server
523 provides an opaque PRF input, the length must be the same as the
524 length of the client's opaque PRF input.
526 Note that the callback function will only be called when creating
527 a new session (session resumption can resume whatever was
528 previously negotiated), and will not be called in SSL 2.0
529 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
530 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
531 for applications that need to enforce opaque PRF input.
535 *) Update ssl code to support digests other than SHA1+MD5 for handshake
538 [Victor B. Wagner <vitus@cryptocom.ru>]
540 *) Add RFC4507 support to OpenSSL. This includes the corrections in
541 RFC4507bis. The encrypted ticket format is an encrypted encoded
542 SSL_SESSION structure, that way new session features are automatically
545 If a client application caches session in an SSL_SESSION structure
546 support is transparent because tickets are now stored in the encoded
549 The SSL_CTX structure automatically generates keys for ticket
550 protection in servers so again support should be possible
551 with no application modification.
553 If a client or server wishes to disable RFC4507 support then the option
554 SSL_OP_NO_TICKET can be set.
556 Add a TLS extension debugging callback to allow the contents of any client
557 or server extensions to be examined.
559 This work was sponsored by Google.
562 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
563 OpenSSL should now compile cleanly on gcc 4.2
564 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
566 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
567 support including streaming MAC support: this is required for GOST
569 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
571 *) Add option -stream to use PKCS#7 streaming in smime utility. New
572 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
573 to output in BER and PEM format.
576 *) Experimental support for use of HMAC via EVP_PKEY interface. This
577 allows HMAC to be handled via the EVP_DigestSign*() interface. The
578 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
579 ENGINE support for HMAC keys which are unextractable. New -mac and
580 -macopt options to dgst utility.
583 *) New option -sigopt to dgst utility. Update dgst to use
584 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
585 alternative signing paramaters such as X9.31 or PSS in the dgst
589 *) Change ssl_cipher_apply_rule(), the internal function that does
590 the work each time a ciphersuite string requests enabling
591 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
592 removing ("!foo+bar") a class of ciphersuites: Now it maintains
593 the order of disabled ciphersuites such that those ciphersuites
594 that most recently went from enabled to disabled not only stay
595 in order with respect to each other, but also have higher priority
596 than other disabled ciphersuites the next time ciphersuites are
599 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
600 the same ciphersuites as with "HIGH" alone, but in a specific
601 order where the PSK ciphersuites come first (since they are the
602 most recently disabled ciphersuites when "HIGH" is parsed).
604 Also, change ssl_create_cipher_list() (using this new
605 funcionality) such that between otherwise identical
606 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
610 *) Change ssl_create_cipher_list() so that it automatically
611 arranges the ciphersuites in reasonable order before starting
612 to process the rule string. Thus, the definition for "DEFAULT"
613 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
614 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
615 This makes it much easier to arrive at a reasonable default order
616 in applications for which anonymous ciphers are OK (meaning
617 that you can't actually use DEFAULT).
618 [Bodo Moeller; suggested by Victor Duchovni]
620 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
621 processing) into multiple integers instead of setting
622 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
623 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
624 (These masks as well as the individual bit definitions are hidden
625 away into the non-exported interface ssl/ssl_locl.h, so this
626 change to the definition of the SSL_CIPHER structure shouldn't
627 affect applications.) This give us more bits for each of these
628 categories, so there is no longer a need to coagulate AES128 and
629 AES256 into a single algorithm bit, and to coagulate Camellia128
630 and Camellia256 into a single algorithm bit, which has led to all
633 Thus, among other things, the kludge introduced in 0.9.7m and
634 0.9.8e for masking out AES256 independently of AES128 or masking
635 out Camellia256 independently of AES256 is not needed here in 0.9.9.
637 With the change, we also introduce new ciphersuite aliases that
638 so far were missing: "AES128", "AES256", "CAMELLIA128", and
642 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
643 Use the leftmost N bytes of the signature input if the input is
644 larger than the prime q (with N being the size in bytes of q).
647 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
648 it yet and it is largely untested.
651 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
654 *) Initial incomplete changes to avoid need for function casts in OpenSSL
655 some compilers (gcc 4.2 and later) reject their use. Safestack is
656 reimplemented. Update ASN1 to avoid use of legacy functions.
659 *) Win32/64 targets are linked with Winsock2.
662 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
663 to external functions. This can be used to increase CRL handling
664 efficiency especially when CRLs are very large by (for example) storing
665 the CRL revoked certificates in a database.
668 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
669 new CRLs added to a directory can be used. New command line option
670 -verify_return_error to s_client and s_server. This causes real errors
671 to be returned by the verify callback instead of carrying on no matter
672 what. This reflects the way a "real world" verify callback would behave.
675 *) GOST engine, supporting several GOST algorithms and public key formats.
676 Kindly donated by Cryptocom.
679 *) Partial support for Issuing Distribution Point CRL extension. CRLs
680 partitioned by DP are handled but no indirect CRL or reason partitioning
681 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
682 selected via a scoring technique which handles IDP and AKID in CRLs.
685 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
686 will ultimately be used for all verify operations: this will remove the
687 X509_STORE dependency on certificate verification and allow alternative
688 lookup methods. X509_STORE based implementations of these two callbacks.
691 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
692 Modify get_crl() to find a valid (unexpired) CRL if possible.
695 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
696 this would be called X509_CRL_cmp() but that name is already used by
697 a function that just compares CRL issuer names. Cache several CRL
698 extensions in X509_CRL structure and cache CRLDP in X509.
701 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
702 this maps equivalent X509_NAME structures into a consistent structure.
703 Name comparison can then be performed rapidly using memcmp().
706 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
710 *) Allow digests to supply their own micalg string for S/MIME type using
711 the ctrl EVP_MD_CTRL_MICALG.
714 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
715 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
716 ctrl. It can then customise the structure before and/or after signing
720 *) New function OBJ_add_sigid() to allow application defined signature OIDs
721 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
722 to free up any added signature OIDs.
725 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
726 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
727 digest and cipher tables. New options added to openssl utility:
728 list-message-digest-algorithms and list-cipher-algorithms.
731 *) Change the array representation of binary polynomials: the list
732 of degrees of non-zero coefficients is now terminated with -1.
733 Previously it was terminated with 0, which was also part of the
734 value; thus, the array representation was not applicable to
735 polynomials where t^0 has coefficient zero. This change makes
736 the array representation useful in a more general context.
739 *) Various modifications and fixes to SSL/TLS cipher string
740 handling. For ECC, the code now distinguishes between fixed ECDH
741 with RSA certificates on the one hand and with ECDSA certificates
742 on the other hand, since these are separate ciphersuites. The
743 unused code for Fortezza ciphersuites has been removed.
745 For consistency with EDH, ephemeral ECDH is now called "EECDH"
746 (not "ECDHE"). For consistency with the code for DH
747 certificates, use of ECDH certificates is now considered ECDH
748 authentication, not RSA or ECDSA authentication (the latter is
749 merely the CA's signing algorithm and not actively used in the
752 The temporary ciphersuite alias "ECCdraft" is no longer
753 available, and ECC ciphersuites are no longer excluded from "ALL"
754 and "DEFAULT". The following aliases now exist for RFC 4492
755 ciphersuites, most of these by analogy with the DH case:
757 kECDHr - ECDH cert, signed with RSA
758 kECDHe - ECDH cert, signed with ECDSA
759 kECDH - ECDH cert (signed with either RSA or ECDSA)
760 kEECDH - ephemeral ECDH
761 ECDH - ECDH cert or ephemeral ECDH
767 AECDH - anonymous ECDH
768 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
772 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
773 Use correct micalg parameters depending on digest(s) in signed message.
776 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
777 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
780 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
781 an engine to register a method. Add ENGINE lookups for methods and
782 functional reference processing.
785 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
786 EVP_{Sign,Verify}* which allow an application to customise the signature
790 *) New -resign option to smime utility. This adds one or more signers
791 to an existing PKCS#7 signedData structure. Also -md option to use an
792 alternative message digest algorithm for signing.
795 *) Tidy up PKCS#7 routines and add new functions to make it easier to
796 create PKCS7 structures containing multiple signers. Update smime
797 application to support multiple signers.
800 *) New -macalg option to pkcs12 utility to allow setting of an alternative
804 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
805 Reorganize PBE internals to lookup from a static table using NIDs,
806 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
807 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
808 PRF which will be automatically used with PBES2.
811 *) Replace the algorithm specific calls to generate keys in "req" with the
815 *) Update PKCS#7 enveloped data routines to use new API. This is now
816 supported by any public key method supporting the encrypt operation. A
817 ctrl is added to allow the public key algorithm to examine or modify
818 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
822 *) Add a ctrl to asn1 method to allow a public key algorithm to express
823 a default digest type to use. In most cases this will be SHA1 but some
824 algorithms (such as GOST) need to specify an alternative digest. The
825 return value indicates how strong the prefernce is 1 means optional and
826 2 is mandatory (that is it is the only supported type). Modify
827 ASN1_item_sign() to accept a NULL digest argument to indicate it should
828 use the default md. Update openssl utilities to use the default digest
829 type for signing if it is not explicitly indicated.
832 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
833 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
834 signing method from the key type. This effectively removes the link
835 between digests and public key types.
838 *) Add an OID cross reference table and utility functions. Its purpose is to
839 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
840 rsaEncryption. This will allow some of the algorithm specific hackery
841 needed to use the correct OID to be removed.
844 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
845 structures for PKCS7_sign(). They are now set up by the relevant public
849 *) Add provisional EC pkey method with support for ECDSA and ECDH.
852 *) Add support for key derivation (agreement) in the API, DH method and
856 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
857 public and private key formats. As a side effect these add additional
858 command line functionality not previously available: DSA signatures can be
859 generated and verified using pkeyutl and DH key support and generation in
864 [Oliver Tappe <zooey@hirschkaefer.de>]
866 *) New make target "install_html_docs" installs HTML renditions of the
868 [Oliver Tappe <zooey@hirschkaefer.de>]
870 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
871 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
872 support key and parameter generation and add initial key generation
873 functionality for RSA.
876 *) Add functions for main EVP_PKEY_method operations. The undocumented
877 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
878 EVP_PKEY_{encrypt,decrypt}_old.
881 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
882 key API, doesn't do much yet.
885 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
886 public key algorithms. New option to openssl utility:
887 "list-public-key-algorithms" to print out info.
890 *) Implement the Supported Elliptic Curves Extension for
891 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
894 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
895 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
898 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
899 utilities such as rsa, dsa, dsaparam etc except they process any key
903 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
904 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
905 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
909 *) Initial support for pluggable public key ASN1.
910 De-spaghettify the public key ASN1 handling. Move public and private
911 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
912 algorithm specific handling to a single module within the relevant
913 algorithm directory. Add functions to allow (near) opaque processing
914 of public and private key structures.
917 *) Implement the Supported Point Formats Extension for
918 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
921 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
922 for the psk identity [hint] and the psk callback functions to the
923 SSL_SESSION, SSL and SSL_CTX structure.
926 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
930 SSL_CTX_use_psk_identity_hint
931 SSL_get_psk_identity_hint
933 SSL_use_psk_identity_hint
935 [Mika Kousa and Pasi Eronen of Nokia Corporation]
937 *) Add RFC 3161 compliant time stamp request creation, response generation
938 and response verification functionality.
939 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
941 *) Add initial support for TLS extensions, specifically for the server_name
942 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
943 have new members for a host name. The SSL data structure has an
944 additional member SSL_CTX *initial_ctx so that new sessions can be
945 stored in that context to allow for session resumption, even after the
946 SSL has been switched to a new SSL_CTX in reaction to a client's
947 server_name extension.
949 New functions (subject to change):
952 SSL_get_servername_type()
955 New CTRL codes and macros (subject to change):
957 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
958 - SSL_CTX_set_tlsext_servername_callback()
959 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
960 - SSL_CTX_set_tlsext_servername_arg()
961 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
963 openssl s_client has a new '-servername ...' option.
965 openssl s_server has new options '-servername_host ...', '-cert2 ...',
966 '-key2 ...', '-servername_fatal' (subject to change). This allows
967 testing the HostName extension for a specific single host name ('-cert'
968 and '-key' remain fallbacks for handshakes without HostName
969 negotiation). If the unrecogninzed_name alert has to be sent, this by
970 default is a warning; it becomes fatal with the '-servername_fatal'
973 [Peter Sylvester, Remy Allais, Christophe Renou]
975 *) Whirlpool hash implementation is added.
978 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
979 bn(64,32). Because of instruction set limitations it doesn't have
980 any negative impact on performance. This was done mostly in order
981 to make it possible to share assembler modules, such as bn_mul_mont
982 implementations, between 32- and 64-bit builds without hassle.
985 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
986 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
990 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
991 dedicated Montgomery multiplication procedure, is introduced.
992 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
993 "64-bit" performance on certain 32-bit targets.
996 *) New option SSL_OP_NO_COMP to disable use of compression selectively
997 in SSL structures. New SSL ctrl to set maximum send fragment size.
998 Save memory by seeting the I/O buffer sizes dynamically instead of
999 using the maximum available value.
1002 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1003 in addition to the text details.
1006 *) Very, very preliminary EXPERIMENTAL support for printing of general
1007 ASN1 structures. This currently produces rather ugly output and doesn't
1008 handle several customised structures at all.
1011 *) Integrated support for PVK file format and some related formats such
1012 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1013 these in the 'rsa' and 'dsa' utilities.
1016 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1019 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1020 place for the (very old) "NETSCAPE" format certificates which are now
1021 handled using new ASN1 code equivalents.
1024 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1025 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1026 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1029 *) Modify CRL distribution points extension code to print out previously
1030 unsupported fields. Enhance extension setting code to allow setting of
1034 *) Add print and set support for Issuing Distribution Point CRL extension.
1037 *) Change 'Configure' script to enable Camellia by default.
1040 Changes between 0.9.8o and 0.9.8p [xx XXX xxxx]
1042 *) Fix extension code to avoid race conditions which can result in a buffer
1043 overrun vulnerability: resumed sessions must not be modified as they can
1044 be shared by multiple threads. CVE-2010-3864
1046 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1049 *) Don't reencode certificate when calculating signature: cache and use
1050 the original encoding instead. This makes signature verification of
1051 some broken encodings work correctly.
1054 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1055 is also one of the inputs.
1056 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1058 *) Don't repeatedly append PBE algorithms to table if they already exist.
1059 Sort table on each new add. This effectively makes the table read only
1060 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1064 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1066 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1069 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1070 access or freeing data twice (CVE-2010-0742)
1071 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1073 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1074 common in certificates and some applications which only call
1075 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1079 Reduce copying into .apps and .test in makevms.com
1080 Don't try to use blank CA certificate in CA.com
1081 Allow use of C files from original directories in maketests.com
1082 [Steven M. Schweda" <sms@antinode.info>]
1084 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1086 *) When rejecting SSL/TLS records due to an incorrect version number, never
1087 update s->server with a new major version number. As of
1088 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1089 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1090 the previous behavior could result in a read attempt at NULL when
1091 receiving specific incorrect SSL/TLS records once record payload
1092 protection is active. (CVE-2010-0740)
1093 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1095 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1096 could be crashed if the relevant tables were not present (e.g. chrooted).
1097 [Tomas Hoger <thoger@redhat.com>]
1099 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1101 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1102 [Martin Olsson, Neel Mehta]
1104 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1105 accommodate for stack sorting, always a write lock!).
1108 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1109 excessive delays in the RAND_poll(): over a minute. As a workaround
1110 include a time check in the inner Heap32Next loop too.
1113 *) The code that handled flushing of data in SSL/TLS originally used the
1114 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1115 the problem outlined in PR#1949. The fix suggested there however can
1116 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1117 of Apache). So instead simplify the code to flush unconditionally.
1118 This should be fine since flushing with no data to flush is a no op.
1121 *) Handle TLS versions 2.0 and later properly and correctly use the
1122 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1123 off ancient servers have a habit of sticking around for a while...
1126 *) Modify compression code so it frees up structures without using the
1127 ex_data callbacks. This works around a problem where some applications
1128 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1129 restarting) then use compression (e.g. SSL with compression) later.
1130 This results in significant per-connection memory leaks and
1131 has caused some security issues including CVE-2008-1678 and
1135 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1136 change when encrypting or decrypting.
1139 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1140 connect and renegotiate with servers which do not support RI.
1141 Until RI is more widely deployed this option is enabled by default.
1144 *) Add "missing" ssl ctrls to clear options and mode.
1147 *) If client attempts to renegotiate and doesn't support RI respond with
1148 a no_renegotiation alert as required by RFC5746. Some renegotiating
1149 TLS clients will continue a connection gracefully when they receive
1150 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1151 waiting for a server hello which it will never receive. Now we treat a
1152 received no_renegotiation alert as a fatal error. This is because
1153 applications requesting a renegotiation might well expect it to succeed
1154 and would have no code in place to handle the server denying it so the
1155 only safe thing to do is to terminate the connection.
1158 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1159 peer supports secure renegotiation and 0 otherwise. Print out peer
1160 renegotiation support in s_client/s_server.
1163 *) Replace the highly broken and deprecated SPKAC certification method with
1164 the updated NID creation version. This should correctly handle UTF8.
1167 *) Implement RFC5746. Re-enable renegotiation but require the extension
1168 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1169 turns out to be a bad idea. It has been replaced by
1170 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1171 SSL_CTX_set_options(). This is really not recommended unless you
1172 know what you are doing.
1173 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1175 *) Fixes to stateless session resumption handling. Use initial_ctx when
1176 issuing and attempting to decrypt tickets in case it has changed during
1177 servername handling. Use a non-zero length session ID when attempting
1178 stateless session resumption: this makes it possible to determine if
1179 a resumption has occurred immediately after receiving server hello
1180 (several places in OpenSSL subtly assume this) instead of later in
1184 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1185 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1186 fixes for a few places where the return code is not checked
1188 [Julia Lawall <julia@diku.dk>]
1190 *) Add --strict-warnings option to Configure script to include devteam
1191 warnings in other configurations.
1194 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1195 makes it possible to install openssl libraries in locations which
1196 have names other than "lib", for example "/usr/lib64" which some
1198 [Steve Henson, based on patch from Jeremy Utley]
1200 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1201 X690 8.9.12 and can produce some misleading textual output of OIDs.
1202 [Steve Henson, reported by Dan Kaminsky]
1204 *) Delete MD2 from algorithm tables. This follows the recommendation in
1205 several standards that it is not used in new applications due to
1206 several cryptographic weaknesses. For binary compatibility reasons
1207 the MD2 API is still compiled in by default.
1210 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1214 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1215 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1217 [Guenter <lists@gknw.net>]
1219 *) Fix the server certificate chain building code to use X509_verify_cert(),
1220 it used to have an ad-hoc builder which was unable to cope with anything
1221 other than a simple chain.
1222 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1224 *) Don't check self signed certificate signatures in X509_verify_cert()
1225 by default (a flag can override this): it just wastes time without
1226 adding any security. As a useful side effect self signed root CAs
1227 with non-FIPS digests are now usable in FIPS mode.
1230 *) In dtls1_process_out_of_seq_message() the check if the current message
1231 is already buffered was missing. For every new message was memory
1232 allocated, allowing an attacker to perform an denial of service attack
1233 with sending out of seq handshake messages until there is no memory
1234 left. Additionally every future messege was buffered, even if the
1235 sequence number made no sense and would be part of another handshake.
1236 So only messages with sequence numbers less than 10 in advance will be
1237 buffered. (CVE-2009-1378)
1238 [Robin Seggelmann, discovered by Daniel Mentz]
1240 *) Records are buffered if they arrive with a future epoch to be
1241 processed after finishing the corresponding handshake. There is
1242 currently no limitation to this buffer allowing an attacker to perform
1243 a DOS attack with sending records with future epochs until there is no
1244 memory left. This patch adds the pqueue_size() function to detemine
1245 the size of a buffer and limits the record buffer to 100 entries.
1247 [Robin Seggelmann, discovered by Daniel Mentz]
1249 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1250 parent structure is freed. (CVE-2009-1379)
1253 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1254 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1257 [Ilya O. <vrghost@gmail.com>]
1259 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1261 *) Disable renegotiation completely - this fixes a severe security
1262 problem (CVE-2009-3555) at the cost of breaking all
1263 renegotiation. Renegotiation can be re-enabled by setting
1264 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1265 run-time. This is really not recommended unless you know what
1269 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1271 *) Don't set val to NULL when freeing up structures, it is freed up by
1272 underlying code. If sizeof(void *) > sizeof(long) this can result in
1273 zeroing past the valid field. (CVE-2009-0789)
1274 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1276 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1277 checked correctly. This would allow some invalid signed attributes to
1278 appear to verify correctly. (CVE-2009-0591)
1279 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1281 *) Reject UniversalString and BMPString types with invalid lengths. This
1282 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1283 a legal length. (CVE-2009-0590)
1286 *) Set S/MIME signing as the default purpose rather than setting it
1287 unconditionally. This allows applications to override it at the store
1291 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1292 to handle some structures.
1295 *) Improve efficiency of mem_gets: don't search whole buffer each time
1297 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1299 *) New -hex option for openssl rand.
1302 *) Print out UTF8String and NumericString when parsing ASN1.
1305 *) Support NumericString type for name components.
1308 *) Allow CC in the environment to override the automatically chosen
1309 compiler. Note that nothing is done to ensure flags work with the
1313 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1315 *) Properly check EVP_VerifyFinal() and similar return values
1317 [Ben Laurie, Bodo Moeller, Google Security Team]
1319 *) Enable TLS extensions by default.
1322 *) Allow the CHIL engine to be loaded, whether the application is
1323 multithreaded or not. (This does not release the developer from the
1324 obligation to set up the dynamic locking callbacks.)
1325 [Sander Temme <sander@temme.net>]
1327 *) Use correct exit code if there is an error in dgst command.
1328 [Steve Henson; problem pointed out by Roland Dirlewanger]
1330 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1331 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1334 *) Add experimental JPAKE support, including demo authentication in
1335 s_client and s_server.
1338 *) Set the comparison function in v3_addr_canonize().
1339 [Rob Austein <sra@hactrn.net>]
1341 *) Add support for XMPP STARTTLS in s_client.
1342 [Philip Paeps <philip@freebsd.org>]
1344 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1345 to ensure that even with this option, only ciphersuites in the
1346 server's preference list will be accepted. (Note that the option
1347 applies only when resuming a session, so the earlier behavior was
1348 just about the algorithm choice for symmetric cryptography.)
1351 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1353 *) Fix NULL pointer dereference if a DTLS server received
1354 ChangeCipherSpec as first record (CVE-2009-1386).
1357 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1358 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1361 *) The fix in 0.9.8c that supposedly got rid of unsafe
1362 double-checked locking was incomplete for RSA blinding,
1363 addressing just one layer of what turns out to have been
1364 doubly unsafe triple-checked locking.
1366 So now fix this for real by retiring the MONT_HELPER macro
1367 in crypto/rsa/rsa_eay.c.
1369 [Bodo Moeller; problem pointed out by Marius Schilder]
1371 *) Various precautionary measures:
1373 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1375 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1376 (NB: This would require knowledge of the secret session ticket key
1377 to exploit, in which case you'd be SOL either way.)
1379 - Change bn_nist.c so that it will properly handle input BIGNUMs
1380 outside the expected range.
1382 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1385 [Neel Mehta, Bodo Moeller]
1387 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1388 the load fails. Useful for distros.
1389 [Ben Laurie and the FreeBSD team]
1391 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1394 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1397 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1399 This work was sponsored by Logica.
1402 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1403 keystores. Support for SSL/TLS client authentication too.
1404 Not compiled unless enable-capieng specified to Configure.
1406 This work was sponsored by Logica.
1409 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1410 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1411 attribute creation routines such as certifcate requests and PKCS#12
1415 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1417 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1418 handshake which could lead to a cilent crash as found using the
1419 Codenomicon TLS test suite (CVE-2008-1672)
1420 [Steve Henson, Mark Cox]
1422 *) Fix double free in TLS server name extensions which could lead to
1423 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1426 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1428 Clear the error queue to ensure that error entries left from
1429 older function calls do not interfere with the correct operation.
1430 [Lutz Jaenicke, Erik de Castro Lopo]
1432 *) Remove root CA certificates of commercial CAs:
1434 The OpenSSL project does not recommend any specific CA and does not
1435 have any policy with respect to including or excluding any CA.
1436 Therefore it does not make any sense to ship an arbitrary selection
1437 of root CA certificates with the OpenSSL software.
1440 *) RSA OAEP patches to fix two separate invalid memory reads.
1441 The first one involves inputs when 'lzero' is greater than
1442 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1443 before the beginning of from). The second one involves inputs where
1444 the 'db' section contains nothing but zeroes (there is a one-byte
1445 invalid read after the end of 'db').
1446 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1448 *) Partial backport from 0.9.9-dev:
1450 Introduce bn_mul_mont (dedicated Montgomery multiplication
1451 procedure) as a candidate for BIGNUM assembler implementation.
1452 While 0.9.9-dev uses assembler for various architectures, only
1453 x86_64 is available by default here in the 0.9.8 branch, and
1454 32-bit x86 is available through a compile-time setting.
1456 To try the 32-bit x86 assembler implementation, use Configure
1457 option "enable-montasm" (which exists only for this backport).
1459 As "enable-montasm" for 32-bit x86 disclaims code stability
1460 anyway, in this constellation we activate additional code
1461 backported from 0.9.9-dev for further performance improvements,
1462 namely BN_from_montgomery_word. (To enable this otherwise,
1463 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1465 [Andy Polyakov (backport partially by Bodo Moeller)]
1467 *) Add TLS session ticket callback. This allows an application to set
1468 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1469 values. This is useful for key rollover for example where several key
1470 sets may exist with different names.
1473 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1474 This was broken until now in 0.9.8 releases, such that the only way
1475 a registered ENGINE could be used (assuming it initialises
1476 successfully on the host) was to explicitly set it as the default
1477 for the relevant algorithms. This is in contradiction with 0.9.7
1478 behaviour and the documentation. With this fix, when an ENGINE is
1479 registered into a given algorithm's table of implementations, the
1480 'uptodate' flag is reset so that auto-discovery will be used next
1481 time a new context for that algorithm attempts to select an
1483 [Ian Lister (tweaked by Geoff Thorpe)]
1485 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1486 implemention in the following ways:
1488 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1491 Lack of BER streaming support means one pass streaming processing is
1492 only supported if data is detached: setting the streaming flag is
1493 ignored for embedded content.
1495 CMS support is disabled by default and must be explicitly enabled
1496 with the enable-cms configuration option.
1499 *) Update the GMP engine glue to do direct copies between BIGNUM and
1500 mpz_t when openssl and GMP use the same limb size. Otherwise the
1501 existing "conversion via a text string export" trick is still used.
1502 [Paul Sheer <paulsheer@gmail.com>]
1504 *) Zlib compression BIO. This is a filter BIO which compressed and
1505 uncompresses any data passed through it.
1508 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1509 RFC3394 compatible AES key wrapping.
1512 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1513 sets string data without copying. X509_ALGOR_set0() and
1514 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1515 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1516 from an X509_ATTRIBUTE structure optionally checking it occurs only
1517 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1521 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1522 to get the expected BN_FLG_CONSTTIME behavior.
1523 [Bodo Moeller (Google)]
1527 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1528 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1529 - added some more tests to do_tests.pl
1530 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1531 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1532 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1533 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1534 - various changes to netware.pl to enable gcc-cross builds on Win32
1536 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1537 - various changes to fix missing prototype warnings
1538 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1539 - added AES, WHIRLPOOL and CPUID assembler code to build files
1540 - added missing AES assembler make rules to mk1mf.pl
1541 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1542 [Guenter Knauf <eflash@gmx.net>]
1544 *) Implement certificate status request TLS extension defined in RFC3546.
1545 A client can set the appropriate parameters and receive the encoded
1546 OCSP response via a callback. A server can query the supplied parameters
1547 and set the encoded OCSP response in the callback. Add simplified examples
1548 to s_client and s_server.
1551 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1553 *) Fix various bugs:
1554 + Binary incompatibility of ssl_ctx_st structure
1555 + DTLS interoperation with non-compliant servers
1556 + Don't call get_session_cb() without proposed session
1557 + Fix ia64 assembler code
1558 [Andy Polyakov, Steve Henson]
1560 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1562 *) DTLS Handshake overhaul. There were longstanding issues with
1563 OpenSSL DTLS implementation, which were making it impossible for
1564 RFC 4347 compliant client to communicate with OpenSSL server.
1565 Unfortunately just fixing these incompatibilities would "cut off"
1566 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1567 server keeps tolerating non RFC compliant syntax. The opposite is
1568 not true, 0.9.8f client can not communicate with earlier server.
1569 This update even addresses CVE-2007-4995.
1572 *) Changes to avoid need for function casts in OpenSSL: some compilers
1573 (gcc 4.2 and later) reject their use.
1574 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1577 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1578 RFC4507bis. The encrypted ticket format is an encrypted encoded
1579 SSL_SESSION structure, that way new session features are automatically
1582 If a client application caches session in an SSL_SESSION structure
1583 support is transparent because tickets are now stored in the encoded
1586 The SSL_CTX structure automatically generates keys for ticket
1587 protection in servers so again support should be possible
1588 with no application modification.
1590 If a client or server wishes to disable RFC4507 support then the option
1591 SSL_OP_NO_TICKET can be set.
1593 Add a TLS extension debugging callback to allow the contents of any client
1594 or server extensions to be examined.
1596 This work was sponsored by Google.
1599 *) Add initial support for TLS extensions, specifically for the server_name
1600 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1601 have new members for a host name. The SSL data structure has an
1602 additional member SSL_CTX *initial_ctx so that new sessions can be
1603 stored in that context to allow for session resumption, even after the
1604 SSL has been switched to a new SSL_CTX in reaction to a client's
1605 server_name extension.
1607 New functions (subject to change):
1609 SSL_get_servername()
1610 SSL_get_servername_type()
1613 New CTRL codes and macros (subject to change):
1615 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1616 - SSL_CTX_set_tlsext_servername_callback()
1617 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1618 - SSL_CTX_set_tlsext_servername_arg()
1619 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1621 openssl s_client has a new '-servername ...' option.
1623 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1624 '-key2 ...', '-servername_fatal' (subject to change). This allows
1625 testing the HostName extension for a specific single host name ('-cert'
1626 and '-key' remain fallbacks for handshakes without HostName
1627 negotiation). If the unrecogninzed_name alert has to be sent, this by
1628 default is a warning; it becomes fatal with the '-servername_fatal'
1631 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1633 *) Add AES and SSE2 assembly language support to VC++ build.
1636 *) Mitigate attack on final subtraction in Montgomery reduction.
1639 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1640 (which previously caused an internal error).
1643 *) Squeeze another 10% out of IGE mode when in != out.
1646 *) AES IGE mode speedup.
1647 [Dean Gaudet (Google)]
1649 *) Add the Korean symmetric 128-bit cipher SEED (see
1650 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1651 add SEED ciphersuites from RFC 4162:
1653 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1654 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1655 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1656 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1658 To minimize changes between patchlevels in the OpenSSL 0.9.8
1659 series, SEED remains excluded from compilation unless OpenSSL
1660 is configured with 'enable-seed'.
1661 [KISA, Bodo Moeller]
1663 *) Mitigate branch prediction attacks, which can be practical if a
1664 single processor is shared, allowing a spy process to extract
1665 information. For detailed background information, see
1666 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1667 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1668 and Necessary Software Countermeasures"). The core of the change
1669 are new versions BN_div_no_branch() and
1670 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1671 respectively, which are slower, but avoid the security-relevant
1672 conditional branches. These are automatically called by BN_div()
1673 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1674 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1675 remove a conditional branch.
1677 BN_FLG_CONSTTIME is the new name for the previous
1678 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1679 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1680 in the exponent causes BN_mod_exp_mont() to use the alternative
1681 implementation in BN_mod_exp_mont_consttime().) The old name
1682 remains as a deprecated alias.
1684 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1685 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1686 constant-time implementations for more than just exponentiation.
1687 Here too the old name is kept as a deprecated alias.
1689 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1690 the BN_BLINDING structure gets an independent copy of the
1691 modulus. This means that the previous "BIGNUM *m" argument to
1692 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1693 essentially becomes "const BIGNUM *m", although we can't actually
1694 change this in the header file before 0.9.9. It allows
1695 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1696 enable BN_FLG_CONSTTIME.
1698 [Matthew D Wood (Intel Corp)]
1700 *) In the SSL/TLS server implementation, be strict about session ID
1701 context matching (which matters if an application uses a single
1702 external cache for different purposes). Previously,
1703 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1704 set. This did ensure strict client verification, but meant that,
1705 with applications using a single external cache for quite
1706 different requirements, clients could circumvent ciphersuite
1707 restrictions for a given session ID context by starting a session
1708 in a different context.
1711 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1712 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1713 authentication-only ciphersuites.
1716 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1717 not complete and could lead to a possible single byte overflow
1718 (CVE-2007-5135) [Ben Laurie]
1720 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1722 *) Since AES128 and AES256 (and similarly Camellia128 and
1723 Camellia256) share a single mask bit in the logic of
1724 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1725 kludge to work properly if AES128 is available and AES256 isn't
1726 (or if Camellia128 is available and Camellia256 isn't).
1729 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1730 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1731 When a point or a seed is encoded in a BIT STRING, we need to
1732 prevent the removal of trailing zero bits to get the proper DER
1733 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1734 of a NamedBitList, for which trailing 0 bits need to be removed.)
1737 *) Have SSL/TLS server implementation tolerate "mismatched" record
1738 protocol version while receiving ClientHello even if the
1739 ClientHello is fragmented. (The server can't insist on the
1740 particular protocol version it has chosen before the ServerHello
1741 message has informed the client about his choice.)
1744 *) Add RFC 3779 support.
1745 [Rob Austein for ARIN, Ben Laurie]
1747 *) Load error codes if they are not already present instead of using a
1748 static variable. This allows them to be cleanly unloaded and reloaded.
1749 Improve header file function name parsing.
1752 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1753 or CAPABILITY handshake as required by RFCs.
1756 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1758 *) Introduce limits to prevent malicious keys being able to
1759 cause a denial of service. (CVE-2006-2940)
1760 [Steve Henson, Bodo Moeller]
1762 *) Fix ASN.1 parsing of certain invalid structures that can result
1763 in a denial of service. (CVE-2006-2937) [Steve Henson]
1765 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1766 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1768 *) Fix SSL client code which could crash if connecting to a
1769 malicious SSLv2 server. (CVE-2006-4343)
1770 [Tavis Ormandy and Will Drewry, Google Security Team]
1772 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1773 match only those. Before that, "AES256-SHA" would be interpreted
1774 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1775 the same strength classification in 0.9.7h) as we currently only
1776 have a single AES bit in the ciphersuite description bitmap.
1777 That change, however, also applied to ciphersuite strings such as
1778 "RC4-MD5" that intentionally matched multiple ciphersuites --
1779 namely, SSL 2.0 ciphersuites in addition to the more common ones
1780 from SSL 3.0/TLS 1.0.
1782 So we change the selection algorithm again: Naming an explicit
1783 ciphersuite selects this one ciphersuite, and any other similar
1784 ciphersuite (same bitmap) from *other* protocol versions.
1785 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1786 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1788 Since SSL 2.0 does not have any ciphersuites for which the
1789 128/256 bit distinction would be relevant, this works for now.
1790 The proper fix will be to use different bits for AES128 and
1791 AES256, which would have avoided the problems from the beginning;
1792 however, bits are scarce, so we can only do this in a new release
1793 (not just a patchlevel) when we can change the SSL_CIPHER
1794 definition to split the single 'unsigned long mask' bitmap into
1795 multiple values to extend the available space.
1799 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1801 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1802 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1804 *) Add AES IGE and biIGE modes.
1807 *) Change the Unix randomness entropy gathering to use poll() when
1808 possible instead of select(), since the latter has some
1809 undesirable limitations.
1810 [Darryl Miles via Richard Levitte and Bodo Moeller]
1812 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1813 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1814 cannot be implicitly activated as part of, e.g., the "AES" alias.
1815 However, please upgrade to OpenSSL 0.9.9[-dev] for
1816 non-experimental use of the ECC ciphersuites to get TLS extension
1817 support, which is required for curve and point format negotiation
1818 to avoid potential handshake problems.
1821 *) Disable rogue ciphersuites:
1823 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1824 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1825 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1827 The latter two were purportedly from
1828 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1831 Also deactivate the remaining ciphersuites from
1832 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1833 unofficial, and the ID has long expired.
1836 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1837 dual-core machines) and other potential thread-safety issues.
1840 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1841 versions), which is now available for royalty-free use
1842 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1843 Also, add Camellia TLS ciphersuites from RFC 4132.
1845 To minimize changes between patchlevels in the OpenSSL 0.9.8
1846 series, Camellia remains excluded from compilation unless OpenSSL
1847 is configured with 'enable-camellia'.
1850 *) Disable the padding bug check when compression is in use. The padding
1851 bug check assumes the first packet is of even length, this is not
1852 necessarily true if compresssion is enabled and can result in false
1853 positives causing handshake failure. The actual bug test is ancient
1854 code so it is hoped that implementations will either have fixed it by
1855 now or any which still have the bug do not support compression.
1858 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1860 *) When applying a cipher rule check to see if string match is an explicit
1861 cipher suite and only match that one cipher suite if it is.
1864 *) Link in manifests for VC++ if needed.
1865 [Austin Ziegler <halostatue@gmail.com>]
1867 *) Update support for ECC-based TLS ciphersuites according to
1868 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1869 TLS extensions, which are supported starting with the 0.9.9
1870 branch, not in the OpenSSL 0.9.8 branch).
1873 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1874 opaque EVP_CIPHER_CTX handling.
1877 *) Fixes and enhancements to zlib compression code. We now only use
1878 "zlib1.dll" and use the default __cdecl calling convention on Win32
1879 to conform with the standards mentioned here:
1880 http://www.zlib.net/DLL_FAQ.txt
1881 Static zlib linking now works on Windows and the new --with-zlib-include
1882 --with-zlib-lib options to Configure can be used to supply the location
1883 of the headers and library. Gracefully handle case where zlib library
1887 *) Several fixes and enhancements to the OID generation code. The old code
1888 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1889 handle numbers larger than ULONG_MAX, truncated printing and had a
1890 non standard OBJ_obj2txt() behaviour.
1893 *) Add support for building of engines under engine/ as shared libraries
1894 under VC++ build system.
1897 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1898 Hopefully, we will not see any false combination of paths any more.
1901 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1903 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1904 (part of SSL_OP_ALL). This option used to disable the
1905 countermeasure against man-in-the-middle protocol-version
1906 rollback in the SSL 2.0 server implementation, which is a bad
1907 idea. (CVE-2005-2969)
1909 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1910 for Information Security, National Institute of Advanced Industrial
1911 Science and Technology [AIST], Japan)]
1913 *) Add two function to clear and return the verify parameter flags.
1916 *) Keep cipherlists sorted in the source instead of sorting them at
1917 runtime, thus removing the need for a lock.
1920 *) Avoid some small subgroup attacks in Diffie-Hellman.
1921 [Nick Mathewson and Ben Laurie]
1923 *) Add functions for well-known primes.
1926 *) Extended Windows CE support.
1927 [Satoshi Nakamura and Andy Polyakov]
1929 *) Initialize SSL_METHOD structures at compile time instead of during
1930 runtime, thus removing the need for a lock.
1933 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1934 attempting to decrypt each encrypted key in turn. Add support to
1938 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1940 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1943 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1946 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1947 key into the same file any more.
1950 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1953 *) Add -utf8 command line and config file option to 'ca'.
1954 [Stefan <stf@udoma.org]
1956 *) Removed the macro des_crypt(), as it seems to conflict with some
1957 libraries. Use DES_crypt().
1960 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1961 involves renaming the source and generated shared-libs for
1962 both. The engines will accept the corrected or legacy ids
1963 ('ncipher' and '4758_cca' respectively) when binding. NB,
1964 this only applies when building 'shared'.
1965 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1967 *) Add attribute functions to EVP_PKEY structure. Modify
1968 PKCS12_create() to recognize a CSP name attribute and
1969 use it. Make -CSP option work again in pkcs12 utility.
1972 *) Add new functionality to the bn blinding code:
1973 - automatic re-creation of the BN_BLINDING parameters after
1974 a fixed number of uses (currently 32)
1975 - add new function for parameter creation
1976 - introduce flags to control the update behaviour of the
1977 BN_BLINDING parameters
1978 - hide BN_BLINDING structure
1979 Add a second BN_BLINDING slot to the RSA structure to improve
1980 performance when a single RSA object is shared among several
1984 *) Add support for DTLS.
1985 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1987 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1988 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1991 *) Remove buggy and incompletet DH cert support from
1992 ssl/ssl_rsa.c and ssl/s3_both.c
1995 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1996 the apps/openssl applications.
1999 *) Compile clean with "-Wall -Wmissing-prototypes
2000 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2001 DEBUG_SAFESTACK must also be set.
2004 *) Change ./Configure so that certain algorithms can be disabled by default.
2005 The new counterpiece to "no-xxx" is "enable-xxx".
2007 The patented RC5 and MDC2 algorithms will now be disabled unless
2008 "enable-rc5" and "enable-mdc2", respectively, are specified.
2010 (IDEA remains enabled despite being patented. This is because IDEA
2011 is frequently required for interoperability, and there is no license
2012 fee for non-commercial use. As before, "no-idea" can be used to
2013 avoid this algorithm.)
2017 *) Add processing of proxy certificates (see RFC 3820). This work was
2018 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2019 EGEE (Enabling Grids for E-science in Europe).
2022 *) RC4 performance overhaul on modern architectures/implementations, such
2023 as Intel P4, IA-64 and AMD64.
2026 *) New utility extract-section.pl. This can be used specify an alternative
2027 section number in a pod file instead of having to treat each file as
2028 a separate case in Makefile. This can be done by adding two lines to the
2031 =for comment openssl_section:XXX
2033 The blank line is mandatory.
2037 *) New arguments -certform, -keyform and -pass for s_client and s_server
2038 to allow alternative format key and certificate files and passphrase
2042 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2043 update associated structures and add various utility functions.
2045 Add new policy related verify parameters, include policy checking in
2046 standard verify code. Enhance 'smime' application with extra parameters
2047 to support policy checking and print out.
2050 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2051 Nehemiah processors. These extensions support AES encryption in hardware
2052 as well as RNG (though RNG support is currently disabled).
2053 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2055 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2058 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2059 [Andy Polyakov and a number of other people]
2061 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2062 implementation contributed by IBM.
2063 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2065 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2066 exponent rather than 'unsigned long'. There is a corresponding change to
2067 the new 'rsa_keygen' element of the RSA_METHOD structure.
2068 [Jelte Jansen, Geoff Thorpe]
2070 *) Functionality for creating the initial serial number file is now
2071 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2073 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2074 number file to 1, which is bound to cause problems. To avoid
2075 the problems while respecting compatibility between different 0.9.7
2076 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2077 CA.pl for serial number initialization. With the new release 0.9.8,
2078 we can fix the problem directly in the 'ca' utility.)
2081 *) Reduced header interdepencies by declaring more opaque objects in
2082 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2083 give fewer recursive includes, which could break lazy source code - so
2084 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2085 developers should define this symbol when building and using openssl to
2086 ensure they track the recommended behaviour, interfaces, [etc], but
2087 backwards-compatible behaviour prevails when this isn't defined.
2090 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2093 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2094 This will generate a random key of the appropriate length based on the
2095 cipher context. The EVP_CIPHER can provide its own random key generation
2096 routine to support keys of a specific form. This is used in the des and
2097 3des routines to generate a key of the correct parity. Update S/MIME
2098 code to use new functions and hence generate correct parity DES keys.
2099 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2100 valid (weak or incorrect parity).
2103 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2104 as looking them up. This is useful when the verified structure may contain
2105 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2106 present unless the new PKCS7_NO_CRL flag is asserted.
2109 *) Extend ASN1 oid configuration module. It now additionally accepts the
2112 shortName = some long name, 1.2.3.4
2115 *) Reimplemented the BN_CTX implementation. There is now no more static
2116 limitation on the number of variables it can handle nor the depth of the
2117 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2118 information can now expand as required, and rather than having a single
2119 static array of bignums, BN_CTX now uses a linked-list of such arrays
2120 allowing it to expand on demand whilst maintaining the usefulness of
2121 BN_CTX's "bundling".
2124 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2125 to allow all RSA operations to function using a single BN_CTX.
2128 *) Preliminary support for certificate policy evaluation and checking. This
2129 is initially intended to pass the tests outlined in "Conformance Testing
2130 of Relying Party Client Certificate Path Processing Logic" v1.07.
2133 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2134 remained unused and not that useful. A variety of other little bignum
2135 tweaks and fixes have also been made continuing on from the audit (see
2139 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2140 associated ASN1, EVP and SSL functions and old ASN1 macros.
2143 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2144 and this should never fail. So the return value from the use of
2145 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2146 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2149 *) BN_CTX_get() should return zero-valued bignums, providing the same
2150 initialised value as BN_new().
2151 [Geoff Thorpe, suggested by Ulf Möller]
2153 *) Support for inhibitAnyPolicy certificate extension.
2156 *) An audit of the BIGNUM code is underway, for which debugging code is
2157 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2158 is considered valid when processing BIGNUMs, and causes execution to
2159 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2160 further steps are taken to deliberately pollute unused data in BIGNUM
2161 structures to try and expose faulty code further on. For now, openssl will
2162 (in its default mode of operation) continue to tolerate the inconsistent
2163 forms that it has tolerated in the past, but authors and packagers should
2164 consider trying openssl and their own applications when compiled with
2165 these debugging symbols defined. It will help highlight potential bugs in
2166 their own code, and will improve the test coverage for OpenSSL itself. At
2167 some point, these tighter rules will become openssl's default to improve
2168 maintainability, though the assert()s and other overheads will remain only
2169 in debugging configurations. See bn.h for more details.
2170 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2172 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2173 that can only be obtained through BN_CTX_new() (which implicitly
2174 initialises it). The presence of this function only made it possible
2175 to overwrite an existing structure (and cause memory leaks).
2178 *) Because of the callback-based approach for implementing LHASH as a
2179 template type, lh_insert() adds opaque objects to hash-tables and
2180 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2181 to clean up those corresponding objects before destroying the hash table
2182 (and losing the object pointers). So some over-zealous constifications in
2183 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2184 objects as "const" and the lh_doall[_arg] callback wrappers are not
2185 prototyped to have "const" restrictions on the object pointers they are
2186 given (and so aren't required to cast them away any more).
2189 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2190 (speed) prefers to use its own implementation. The two implementations
2191 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2192 its object type properly exposed (MS_TM) instead of casting to/from "char
2193 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2194 aren't necessarily the greatest nomenclatures - but this is what was used
2195 internally to the implementation so I've used that for now.
2198 *) Ensure that deprecated functions do not get compiled when
2199 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2200 the self-tests were still using deprecated key-generation functions so
2201 these have been updated also.
2204 *) Reorganise PKCS#7 code to separate the digest location functionality
2205 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2206 New function PKCS7_set_digest() to set the digest type for PKCS#7
2207 digestedData type. Add additional code to correctly generate the
2208 digestedData type and add support for this type in PKCS7 initialization
2212 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2213 structure of type "other".
2216 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2217 sure the loop does correctly stop and breaking ("division by zero")
2218 modulus operations are not performed. The (pre-generated) prime
2219 table crypto/bn/bn_prime.h was already correct, but it could not be
2220 re-generated on some platforms because of the "division by zero"
2221 situation in the script.
2222 [Ralf S. Engelschall]
2224 *) Update support for ECC-based TLS ciphersuites according to
2225 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2226 SHA-1 now is only used for "small" curves (where the
2227 representation of a field element takes up to 24 bytes); for
2228 larger curves, the field element resulting from ECDH is directly
2229 used as premaster secret.
2230 [Douglas Stebila (Sun Microsystems Laboratories)]
2232 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2233 curve secp160r1 to the tests.
2234 [Douglas Stebila (Sun Microsystems Laboratories)]
2236 *) Add the possibility to load symbols globally with DSO.
2237 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2239 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2240 control of the error stack.
2243 *) Add support for STORE in ENGINE.
2246 *) Add the STORE type. The intention is to provide a common interface
2247 to certificate and key stores, be they simple file-based stores, or
2248 HSM-type store, or LDAP stores, or...
2249 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2252 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2253 pass a list of arguments to any function as well as provide a way
2254 for a function to pass data back to the caller.
2257 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2258 works like BUF_strdup() but can be used to duplicate a portion of
2259 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2263 *) Add the function sk_find_ex() which works like sk_find(), but will
2264 return an index to an element even if an exact match couldn't be
2265 found. The index is guaranteed to point at the element where the
2266 searched-for key would be inserted to preserve sorting order.
2269 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2270 takes an extra flags argument for optional functionality. Currently,
2271 the following flags are defined:
2273 OBJ_BSEARCH_VALUE_ON_NOMATCH
2274 This one gets OBJ_bsearch_ex() to return a pointer to the first
2275 element where the comparing function returns a negative or zero
2278 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2279 This one gets OBJ_bsearch_ex() to return a pointer to the first
2280 element where the comparing function returns zero. This is useful
2281 if there are more than one element where the comparing function
2285 *) Make it possible to create self-signed certificates with 'openssl ca'
2286 in such a way that the self-signed certificate becomes part of the
2287 CA database and uses the same mechanisms for serial number generation
2288 as all other certificate signing. The new flag '-selfsign' enables
2289 this functionality. Adapt CA.sh and CA.pl.in.
2292 *) Add functionality to check the public key of a certificate request
2293 against a given private. This is useful to check that a certificate
2294 request can be signed by that key (self-signing).
2297 *) Make it possible to have multiple active certificates with the same
2298 subject in the CA index file. This is done only if the keyword
2299 'unique_subject' is set to 'no' in the main CA section (default
2300 if 'CA_default') of the configuration file. The value is saved
2301 with the database itself in a separate index attribute file,
2302 named like the index file with '.attr' appended to the name.
2305 *) Generate muti valued AVAs using '+' notation in config files for
2309 *) Support for nameConstraints certificate extension.
2312 *) Support for policyConstraints certificate extension.
2315 *) Support for policyMappings certificate extension.
2318 *) Make sure the default DSA_METHOD implementation only uses its
2319 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2320 and change its own handlers to be NULL so as to remove unnecessary
2321 indirection. This lets alternative implementations fallback to the
2322 default implementation more easily.
2325 *) Support for directoryName in GeneralName related extensions
2329 *) Make it possible to link applications using Makefile.shared.
2330 Make that possible even when linking against static libraries!
2333 *) Support for single pass processing for S/MIME signing. This now
2334 means that S/MIME signing can be done from a pipe, in addition
2335 cleartext signing (multipart/signed type) is effectively streaming
2336 and the signed data does not need to be all held in memory.
2338 This is done with a new flag PKCS7_STREAM. When this flag is set
2339 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2340 is done after the data is output (and digests calculated) in
2341 SMIME_write_PKCS7().
2344 *) Add full support for -rpath/-R, both in shared libraries and
2345 applications, at least on the platforms where it's known how
2349 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2350 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2351 will now compute a table of multiples of the generator that
2352 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2353 faster (notably in the case of a single point multiplication,
2354 scalar * generator).
2355 [Nils Larsch, Bodo Moeller]
2357 *) IPv6 support for certificate extensions. The various extensions
2358 which use the IP:a.b.c.d can now take IPv6 addresses using the
2359 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2363 *) Added an ENGINE that implements RSA by performing private key
2364 exponentiations with the GMP library. The conversions to and from
2365 GMP's mpz_t format aren't optimised nor are any montgomery forms
2366 cached, and on x86 it appears OpenSSL's own performance has caught up.
2367 However there are likely to be other architectures where GMP could
2368 provide a boost. This ENGINE is not built in by default, but it can be
2369 specified at Configure time and should be accompanied by the necessary
2370 linker additions, eg;
2371 ./config -DOPENSSL_USE_GMP -lgmp
2374 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2375 testing availability of engines with "-t" - the old behaviour is
2376 produced by increasing the feature's verbosity with "-tt".
2379 *) ECDSA routines: under certain error conditions uninitialized BN objects
2380 could be freed. Solution: make sure initialization is performed early
2381 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2385 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2386 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2387 software implementations. For DSA and DH, parameter generation can
2388 also be overriden by providing the appropriate method callbacks.
2391 *) Change the "progress" mechanism used in key-generation and
2392 primality testing to functions that take a new BN_GENCB pointer in
2393 place of callback/argument pairs. The new API functions have "_ex"
2394 postfixes and the older functions are reimplemented as wrappers for
2395 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2396 declarations of the old functions to help (graceful) attempts to
2397 migrate to the new functions. Also, the new key-generation API
2398 functions operate on a caller-supplied key-structure and return
2399 success/failure rather than returning a key or NULL - this is to
2400 help make "keygen" another member function of RSA_METHOD etc.
2402 Example for using the new callback interface:
2404 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2408 BN_GENCB_set(&my_cb, my_callback, my_arg);
2410 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2411 /* For the meaning of a, b in calls to my_callback(), see the
2412 * documentation of the function that calls the callback.
2413 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2414 * my_callback should return 1 if it wants BN_is_prime_ex()
2415 * to continue, or 0 to stop.
2420 *) Change the ZLIB compression method to be stateful, and make it
2421 available to TLS with the number defined in
2422 draft-ietf-tls-compression-04.txt.
2425 *) Add the ASN.1 structures and functions for CertificatePair, which
2426 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2428 CertificatePair ::= SEQUENCE {
2429 forward [0] Certificate OPTIONAL,
2430 reverse [1] Certificate OPTIONAL,
2431 -- at least one of the pair shall be present -- }
2433 Also implement the PEM functions to read and write certificate
2434 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2436 This needed to be defined, mostly for the sake of the LDAP
2437 attribute crossCertificatePair, but may prove useful elsewhere as
2441 *) Make it possible to inhibit symlinking of shared libraries in
2442 Makefile.shared, for Cygwin's sake.
2445 *) Extend the BIGNUM API by creating a function
2446 void BN_set_negative(BIGNUM *a, int neg);
2447 and a macro that behave like
2448 int BN_is_negative(const BIGNUM *a);
2450 to avoid the need to access 'a->neg' directly in applications.
2453 *) Implement fast modular reduction for pseudo-Mersenne primes
2454 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2455 EC_GROUP_new_curve_GFp() will now automatically use this
2457 [Nils Larsch <nla@trustcenter.de>]
2459 *) Add new lock type (CRYPTO_LOCK_BN).
2462 *) Change the ENGINE framework to automatically load engines
2463 dynamically from specific directories unless they could be
2464 found to already be built in or loaded. Move all the
2465 current engines except for the cryptodev one to a new
2467 The engines in engines/ are built as shared libraries if
2468 the "shared" options was given to ./Configure or ./config.
2469 Otherwise, they are inserted in libcrypto.a.
2470 /usr/local/ssl/engines is the default directory for dynamic
2471 engines, but that can be overriden at configure time through
2472 the usual use of --prefix and/or --openssldir, and at run
2473 time with the environment variable OPENSSL_ENGINES.
2474 [Geoff Thorpe and Richard Levitte]
2476 *) Add Makefile.shared, a helper makefile to build shared
2477 libraries. Addapt Makefile.org.
2480 *) Add version info to Win32 DLLs.
2481 [Peter 'Luna' Runestig" <peter@runestig.com>]
2483 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2484 can be added using this API to created arbitrary PKCS#12
2485 files while avoiding the low level API.
2487 New options to PKCS12_create(), key or cert can be NULL and
2488 will then be omitted from the output file. The encryption
2489 algorithm NIDs can be set to -1 for no encryption, the mac
2490 iteration count can be set to 0 to omit the mac.
2492 Enhance pkcs12 utility by making the -nokeys and -nocerts
2493 options work when creating a PKCS#12 file. New option -nomac
2494 to omit the mac, NONE can be set for an encryption algorithm.
2495 New code is modified to use the enhanced PKCS12_create()
2496 instead of the low level API.
2499 *) Extend ASN1 encoder to support indefinite length constructed
2500 encoding. This can output sequences tags and octet strings in
2501 this form. Modify pk7_asn1.c to support indefinite length
2502 encoding. This is experimental and needs additional code to
2503 be useful, such as an ASN1 bio and some enhanced streaming
2506 Extend template encode functionality so that tagging is passed
2507 down to the template encoder.
2510 *) Let 'openssl req' fail if an argument to '-newkey' is not
2511 recognized instead of using RSA as a default.
2514 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2515 As these are not official, they are not included in "ALL";
2516 the "ECCdraft" ciphersuite group alias can be used to select them.
2517 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2519 *) Add ECDH engine support.
2520 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2522 *) Add ECDH in new directory crypto/ecdh/.
2523 [Douglas Stebila (Sun Microsystems Laboratories)]
2525 *) Let BN_rand_range() abort with an error after 100 iterations
2526 without success (which indicates a broken PRNG).
2529 *) Change BN_mod_sqrt() so that it verifies that the input value
2530 is really the square of the return value. (Previously,
2531 BN_mod_sqrt would show GIGO behaviour.)
2534 *) Add named elliptic curves over binary fields from X9.62, SECG,
2535 and WAP/WTLS; add OIDs that were still missing.
2537 [Sheueling Chang Shantz and Douglas Stebila
2538 (Sun Microsystems Laboratories)]
2540 *) Extend the EC library for elliptic curves over binary fields
2541 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2544 EC_GF2m_simple_method
2548 EC_GROUP_new_curve_GF2m
2549 EC_GROUP_set_curve_GF2m
2550 EC_GROUP_get_curve_GF2m
2551 EC_POINT_set_affine_coordinates_GF2m
2552 EC_POINT_get_affine_coordinates_GF2m
2553 EC_POINT_set_compressed_coordinates_GF2m
2555 Point compression for binary fields is disabled by default for
2556 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2559 As binary polynomials are represented as BIGNUMs, various members
2560 of the EC_GROUP and EC_POINT data structures can be shared
2561 between the implementations for prime fields and binary fields;
2562 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2563 are essentially identical to their ..._GFp counterparts.
2564 (For simplicity, the '..._GFp' prefix has been dropped from
2565 various internal method names.)
2567 An internal 'field_div' method (similar to 'field_mul' and
2568 'field_sqr') has been added; this is used only for binary fields.
2570 [Sheueling Chang Shantz and Douglas Stebila
2571 (Sun Microsystems Laboratories)]
2573 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2574 through methods ('mul', 'precompute_mult').
2576 The generic implementations (now internally called 'ec_wNAF_mul'
2577 and 'ec_wNAF_precomputed_mult') remain the default if these
2578 methods are undefined.
2580 [Sheueling Chang Shantz and Douglas Stebila
2581 (Sun Microsystems Laboratories)]
2583 *) New function EC_GROUP_get_degree, which is defined through
2584 EC_METHOD. For curves over prime fields, this returns the bit
2585 length of the modulus.
2587 [Sheueling Chang Shantz and Douglas Stebila
2588 (Sun Microsystems Laboratories)]
2590 *) New functions EC_GROUP_dup, EC_POINT_dup.
2591 (These simply call ..._new and ..._copy).
2593 [Sheueling Chang Shantz and Douglas Stebila
2594 (Sun Microsystems Laboratories)]
2596 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2597 Polynomials are represented as BIGNUMs (where the sign bit is not
2598 used) in the following functions [macros]:
2601 BN_GF2m_sub [= BN_GF2m_add]
2602 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2603 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2604 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2606 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2607 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2608 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2609 BN_GF2m_cmp [= BN_ucmp]
2611 (Note that only the 'mod' functions are actually for fields GF(2^m).
2612 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2614 For some functions, an the irreducible polynomial defining a
2615 field can be given as an 'unsigned int[]' with strictly
2616 decreasing elements giving the indices of those bits that are set;
2617 i.e., p[] represents the polynomial
2618 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2620 p[0] > p[1] > ... > p[k] = 0.
2621 This applies to the following functions:
2626 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2627 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2629 BN_GF2m_mod_sqrt_arr
2630 BN_GF2m_mod_solve_quad_arr
2634 Conversion can be performed by the following functions:
2639 bntest.c has additional tests for binary polynomial arithmetic.
2641 Two implementations for BN_GF2m_mod_div() are available.
2642 The default algorithm simply uses BN_GF2m_mod_inv() and
2643 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2644 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2645 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2647 [Sheueling Chang Shantz and Douglas Stebila
2648 (Sun Microsystems Laboratories)]
2650 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2651 functionality is disabled at compile-time.
2652 [Douglas Stebila <douglas.stebila@sun.com>]
2654 *) Change default behaviour of 'openssl asn1parse' so that more
2655 information is visible when viewing, e.g., a certificate:
2657 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2658 mode the content of non-printable OCTET STRINGs is output in a
2659 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2660 avoid the appearance of a printable string.
2661 [Nils Larsch <nla@trustcenter.de>]
2663 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2665 EC_GROUP_set_asn1_flag()
2666 EC_GROUP_get_asn1_flag()
2667 EC_GROUP_set_point_conversion_form()
2668 EC_GROUP_get_point_conversion_form()
2669 These control ASN1 encoding details:
2670 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2671 has been set to OPENSSL_EC_NAMED_CURVE.
2672 - Points are encoded in uncompressed form by default; options for
2673 asn1_for are as for point2oct, namely
2674 POINT_CONVERSION_COMPRESSED
2675 POINT_CONVERSION_UNCOMPRESSED
2676 POINT_CONVERSION_HYBRID
2678 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2681 EC_GROUP_get0_seed()
2682 EC_GROUP_get_seed_len()
2683 This is used only for ASN1 purposes (so far).
2684 [Nils Larsch <nla@trustcenter.de>]
2686 *) Add 'field_type' member to EC_METHOD, which holds the NID
2687 of the appropriate field type OID. The new function
2688 EC_METHOD_get_field_type() returns this value.
2689 [Nils Larsch <nla@trustcenter.de>]
2694 EC_POINT_point2hex()
2695 EC_POINT_hex2point()
2696 providing useful interfaces to EC_POINT_point2oct() and
2697 EC_POINT_oct2point().
2698 [Nils Larsch <nla@trustcenter.de>]
2700 *) Change internals of the EC library so that the functions
2701 EC_GROUP_set_generator()
2702 EC_GROUP_get_generator()
2703 EC_GROUP_get_order()
2704 EC_GROUP_get_cofactor()
2705 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2706 to methods, which would lead to unnecessary code duplication when
2707 adding different types of curves.
2708 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2710 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2711 arithmetic, and such that modified wNAFs are generated
2712 (which avoid length expansion in many cases).
2715 *) Add a function EC_GROUP_check_discriminant() (defined via
2716 EC_METHOD) that verifies that the curve discriminant is non-zero.
2718 Add a function EC_GROUP_check() that makes some sanity tests
2719 on a EC_GROUP, its generator and order. This includes
2720 EC_GROUP_check_discriminant().
2721 [Nils Larsch <nla@trustcenter.de>]
2723 *) Add ECDSA in new directory crypto/ecdsa/.
2725 Add applications 'openssl ecparam' and 'openssl ecdsa'
2726 (these are based on 'openssl dsaparam' and 'openssl dsa').
2728 ECDSA support is also included in various other files across the
2729 library. Most notably,
2730 - 'openssl req' now has a '-newkey ecdsa:file' option;
2731 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2732 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2733 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2734 them suitable for ECDSA where domain parameters must be
2735 extracted before the specific public key;
2736 - ECDSA engine support has been added.
2737 [Nils Larsch <nla@trustcenter.de>]
2739 *) Include some named elliptic curves, and add OIDs from X9.62,
2740 SECG, and WAP/WTLS. Each curve can be obtained from the new
2742 EC_GROUP_new_by_curve_name(),
2743 and the list of available named curves can be obtained with
2744 EC_get_builtin_curves().
2745 Also add a 'curve_name' member to EC_GROUP objects, which can be
2747 EC_GROUP_set_curve_name()
2748 EC_GROUP_get_curve_name()
2749 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2751 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2752 was actually never needed) and in BN_mul(). The removal in BN_mul()
2753 required a small change in bn_mul_part_recursive() and the addition
2754 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2755 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2756 bn_sub_words() and bn_add_words() except they take arrays with
2760 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2762 *) Cleanse PEM buffers before freeing them since they may contain
2764 [Benjamin Bennett <ben@psc.edu>]
2766 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2767 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2768 authentication-only ciphersuites.
2771 *) Since AES128 and AES256 share a single mask bit in the logic of
2772 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2773 kludge to work properly if AES128 is available and AES256 isn't.
2776 *) Expand security boundary to match 1.1.1 module.
2779 *) Remove redundant features: hash file source, editing of test vectors
2780 modify fipsld to use external fips_premain.c signature.
2783 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2784 run algorithm test programs.
2787 *) Make algorithm test programs more tolerant of whitespace.
2790 *) Have SSL/TLS server implementation tolerate "mismatched" record
2791 protocol version while receiving ClientHello even if the
2792 ClientHello is fragmented. (The server can't insist on the
2793 particular protocol version it has chosen before the ServerHello
2794 message has informed the client about his choice.)
2797 *) Load error codes if they are not already present instead of using a
2798 static variable. This allows them to be cleanly unloaded and reloaded.
2801 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2803 *) Introduce limits to prevent malicious keys being able to
2804 cause a denial of service. (CVE-2006-2940)
2805 [Steve Henson, Bodo Moeller]
2807 *) Fix ASN.1 parsing of certain invalid structures that can result
2808 in a denial of service. (CVE-2006-2937) [Steve Henson]
2810 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2811 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2813 *) Fix SSL client code which could crash if connecting to a
2814 malicious SSLv2 server. (CVE-2006-4343)
2815 [Tavis Ormandy and Will Drewry, Google Security Team]
2817 *) Change ciphersuite string processing so that an explicit
2818 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2819 will no longer include "AES128-SHA"), and any other similar
2820 ciphersuite (same bitmap) from *other* protocol versions (so that
2821 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2822 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2823 changes from 0.9.8b and 0.9.8d.
2826 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2828 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2829 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2831 *) Change the Unix randomness entropy gathering to use poll() when
2832 possible instead of select(), since the latter has some
2833 undesirable limitations.
2834 [Darryl Miles via Richard Levitte and Bodo Moeller]
2836 *) Disable rogue ciphersuites:
2838 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2839 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2840 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2842 The latter two were purportedly from
2843 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2846 Also deactive the remaining ciphersuites from
2847 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2848 unofficial, and the ID has long expired.
2851 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2852 dual-core machines) and other potential thread-safety issues.
2855 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2857 *) Adapt fipsld and the build system to link against the validated FIPS
2858 module in FIPS mode.
2861 *) Fixes for VC++ 2005 build under Windows.
2864 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2865 from a Windows bash shell such as MSYS. It is autodetected from the
2866 "config" script when run from a VC++ environment. Modify standard VC++
2867 build to use fipscanister.o from the GNU make build.
2870 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2872 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2873 The value now differs depending on if you build for FIPS or not.
2874 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2875 safely run with a non-FIPSed libcrypto, as it may crash because of
2876 the difference induced by this change.
2879 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2881 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2882 (part of SSL_OP_ALL). This option used to disable the
2883 countermeasure against man-in-the-middle protocol-version
2884 rollback in the SSL 2.0 server implementation, which is a bad
2885 idea. (CVE-2005-2969)
2887 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2888 for Information Security, National Institute of Advanced Industrial
2889 Science and Technology [AIST], Japan)]
2891 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2892 mainly for FIPS compliance and not fully integrated at this stage.
2895 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2896 the exponentiation using a fixed-length exponent. (Otherwise,
2897 the information leaked through timing could expose the secret key
2898 after many signatures; cf. Bleichenbacher's attack on DSA with
2902 *) Make a new fixed-window mod_exp implementation the default for
2903 RSA, DSA, and DH private-key operations so that the sequence of
2904 squares and multiplies and the memory access pattern are
2905 independent of the particular secret key. This will mitigate
2906 cache-timing and potential related attacks.
2908 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2909 and this is automatically used by BN_mod_exp_mont() if the new flag
2910 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2911 will use this BN flag for private exponents unless the flag
2912 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2913 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2915 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2917 *) Change the client implementation for SSLv23_method() and
2918 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2919 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2920 (Previously, the SSL 2.0 backwards compatible Client Hello
2921 message format would be used even with SSL_OP_NO_SSLv2.)
2924 *) Add support for smime-type MIME parameter in S/MIME messages which some
2928 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2929 a threadsafe manner. Modify rsa code to use new function and add calls
2930 to dsa and dh code (which had race conditions before).
2933 *) Include the fixed error library code in the C error file definitions
2934 instead of fixing them up at runtime. This keeps the error code
2935 structures constant.
2938 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2940 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2943 *) Fixes for newer kerberos headers. NB: the casts are needed because
2944 the 'length' field is signed on one version and unsigned on another
2945 with no (?) obvious way to tell the difference, without these VC++
2946 complains. Also the "definition" of FAR (blank) is no longer included
2947 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2948 some needed definitions.
2951 *) Undo Cygwin change.
2954 *) Added support for proxy certificates according to RFC 3820.
2955 Because they may be a security thread to unaware applications,
2956 they must be explicitely allowed in run-time. See
2957 docs/HOWTO/proxy_certificates.txt for further information.
2960 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2962 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2963 server and client random values. Previously
2964 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2965 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2967 This change has negligible security impact because:
2969 1. Server and client random values still have 24 bytes of pseudo random
2972 2. Server and client random values are sent in the clear in the initial
2975 3. The master secret is derived using the premaster secret (48 bytes in
2976 size for static RSA ciphersuites) as well as client server and random
2979 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2982 [Stephen Henson, reported by UK NISCC]
2984 *) Use Windows randomness collection on Cygwin.
2987 *) Fix hang in EGD/PRNGD query when communication socket is closed
2988 prematurely by EGD/PRNGD.
2989 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2991 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2994 *) Back-port of selected performance improvements from development
2995 branch, as well as improved support for PowerPC platforms.
2998 *) Add lots of checks for memory allocation failure, error codes to indicate
2999 failure and freeing up memory if a failure occurs.
3000 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3002 *) Add new -passin argument to dgst.
3005 *) Perform some character comparisons of different types in X509_NAME_cmp:
3006 this is needed for some certificates that reencode DNs into UTF8Strings
3007 (in violation of RFC3280) and can't or wont issue name rollover
3011 *) Make an explicit check during certificate validation to see that
3012 the CA setting in each certificate on the chain is correct. As a
3013 side effect always do the following basic checks on extensions,
3014 not just when there's an associated purpose to the check:
3016 - if there is an unhandled critical extension (unless the user
3017 has chosen to ignore this fault)
3018 - if the path length has been exceeded (if one is set at all)
3019 - that certain extensions fit the associated purpose (if one has
3023 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3025 *) Avoid a race condition when CRLs are checked in a multi threaded
3026 environment. This would happen due to the reordering of the revoked
3027 entries during signature checking and serial number lookup. Now the
3028 encoding is cached and the serial number sort performed under a lock.
3029 Add new STACK function sk_is_sorted().
3032 *) Add Delta CRL to the extension code.
3035 *) Various fixes to s3_pkt.c so alerts are sent properly.
3036 [David Holmes <d.holmes@f5.com>]
3038 *) Reduce the chances of duplicate issuer name and serial numbers (in
3039 violation of RFC3280) using the OpenSSL certificate creation utilities.
3040 This is done by creating a random 64 bit value for the initial serial
3041 number when a serial number file is created or when a self signed
3042 certificate is created using 'openssl req -x509'. The initial serial
3043 number file is created using 'openssl x509 -next_serial' in CA.pl
3044 rather than being initialized to 1.
3047 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3049 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3050 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3051 [Joe Orton, Steve Henson]
3053 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3055 [Joe Orton, Steve Henson]
3057 *) Make it possible to have multiple active certificates with the same
3058 subject in the CA index file. This is done only if the keyword
3059 'unique_subject' is set to 'no' in the main CA section (default
3060 if 'CA_default') of the configuration file. The value is saved
3061 with the database itself in a separate index attribute file,
3062 named like the index file with '.attr' appended to the name.
3065 *) X509 verify fixes. Disable broken certificate workarounds when
3066 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3067 keyUsage extension present. Don't accept CRLs with unhandled critical
3068 extensions: since verify currently doesn't process CRL extensions this
3069 rejects a CRL with *any* critical extensions. Add new verify error codes
3073 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3074 A clarification of RFC2560 will require the use of OCTET STRINGs and
3075 some implementations cannot handle the current raw format. Since OpenSSL
3076 copies and compares OCSP nonces as opaque blobs without any attempt at
3077 parsing them this should not create any compatibility issues.
3080 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3081 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3082 this HMAC (and other) operations are several times slower than OpenSSL
3086 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3087 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3089 *) Use the correct content when signing type "other".
3092 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3094 *) Fix various bugs revealed by running the NISCC test suite:
3096 Stop out of bounds reads in the ASN1 code when presented with
3097 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3099 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3101 If verify callback ignores invalid public key errors don't try to check
3102 certificate signature with the NULL public key.
3106 *) New -ignore_err option in ocsp application to stop the server
3107 exiting on the first error in a request.
3110 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3111 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3115 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3116 extra data after the compression methods not only for TLS 1.0
3117 but also for SSL 3.0 (as required by the specification).
3118 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3120 *) Change X509_certificate_type() to mark the key as exported/exportable
3121 when it's 512 *bits* long, not 512 bytes.
3124 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3125 blocks during encryption.
3128 *) Various fixes to base64 BIO and non blocking I/O. On write
3129 flushes were not handled properly if the BIO retried. On read
3130 data was not being buffered properly and had various logic bugs.
3131 This also affects blocking I/O when the data being decoded is a
3135 *) Various S/MIME bugfixes and compatibility changes:
3136 output correct application/pkcs7 MIME type if
3137 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3138 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3139 of files as .eml work). Correctly handle very long lines in MIME
3143 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3145 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3146 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3147 a protocol version number mismatch like a decryption error
3148 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3151 *) Turn on RSA blinding by default in the default implementation
3152 to avoid a timing attack. Applications that don't want it can call
3153 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3154 They would be ill-advised to do so in most cases.
3155 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3157 *) Change RSA blinding code so that it works when the PRNG is not
3158 seeded (in this case, the secret RSA exponent is abused as
3159 an unpredictable seed -- if it is not unpredictable, there
3160 is no point in blinding anyway). Make RSA blinding thread-safe
3161 by remembering the creator's thread ID in rsa->blinding and
3162 having all other threads use local one-time blinding factors
3163 (this requires more computation than sharing rsa->blinding, but
3164 avoids excessive locking; and if an RSA object is not shared
3165 between threads, blinding will still be very fast).
3168 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3169 ENGINE as defaults for all supported algorithms irrespective of
3170 the 'flags' parameter. 'flags' is now honoured, so applications
3171 should make sure they are passing it correctly.
3174 *) Target "mingw" now allows native Windows code to be generated in
3175 the Cygwin environment as well as with the MinGW compiler.
3178 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3180 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3181 via timing by performing a MAC computation even if incorrrect
3182 block cipher padding has been found. This is a countermeasure
3183 against active attacks where the attacker has to distinguish
3184 between bad padding and a MAC verification error. (CVE-2003-0078)
3186 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3187 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3188 Martin Vuagnoux (EPFL, Ilion)]
3190 *) Make the no-err option work as intended. The intention with no-err
3191 is not to have the whole error stack handling routines removed from
3192 libcrypto, it's only intended to remove all the function name and
3193 reason texts, thereby removing some of the footprint that may not
3194 be interesting if those errors aren't displayed anyway.
3196 NOTE: it's still possible for any application or module to have it's
3197 own set of error texts inserted. The routines are there, just not
3198 used by default when no-err is given.
3201 *) Add support for FreeBSD on IA64.
3202 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3204 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3205 Kerberos function mit_des_cbc_cksum(). Before this change,
3206 the value returned by DES_cbc_cksum() was like the one from
3207 mit_des_cbc_cksum(), except the bytes were swapped.
3208 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3210 *) Allow an application to disable the automatic SSL chain building.
3211 Before this a rather primitive chain build was always performed in
3212 ssl3_output_cert_chain(): an application had no way to send the
3213 correct chain if the automatic operation produced an incorrect result.
3215 Now the chain builder is disabled if either:
3217 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3219 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3221 The reasoning behind this is that an application would not want the
3222 auto chain building to take place if extra chain certificates are
3223 present and it might also want a means of sending no additional
3224 certificates (for example the chain has two certificates and the
3228 *) Add the possibility to build without the ENGINE framework.
3229 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3231 *) Under Win32 gmtime() can return NULL: check return value in
3232 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3235 *) DSA routines: under certain error conditions uninitialized BN objects
3236 could be freed. Solution: make sure initialization is performed early
3237 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3238 Nils Larsch <nla@trustcenter.de> via PR#459)
3241 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3242 checked on reconnect on the client side, therefore session resumption
3243 could still fail with a "ssl session id is different" error. This
3244 behaviour is masked when SSL_OP_ALL is used due to
3245 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3246 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3247 followup to PR #377.
3250 *) IA-32 assembler support enhancements: unified ELF targets, support
3251 for SCO/Caldera platforms, fix for Cygwin shared build.
3254 *) Add support for FreeBSD on sparc64. As a consequence, support for
3255 FreeBSD on non-x86 processors is separate from x86 processors on
3256 the config script, much like the NetBSD support.
3257 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3259 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3261 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3264 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3265 code (06) was taken as the first octet of the session ID and the last
3266 octet was ignored consequently. As a result SSLv2 client side session
3267 caching could not have worked due to the session ID mismatch between
3269 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3273 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3274 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3278 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3279 seems that in spite of existing for more than a year, many application
3280 author have done nothing to provide the necessary callbacks, which
3281 means that this particular engine will not work properly anywhere.
3282 This is a very unfortunate situation which forces us, in the name
3283 of usability, to give the hw_ncipher.c a static lock, which is part
3285 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3286 appear in 0.9.8 or later. We EXPECT application authors to have
3287 dealt properly with this when 0.9.8 is released (unless we actually
3288 make such changes in the libcrypto locking code that changes will
3289 have to be made anyway).
3292 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3293 octets have been read, EOF or an error occurs. Without this change
3294 some truncated ASN1 structures will not produce an error.
3297 *) Disable Heimdal support, since it hasn't been fully implemented.
3298 Still give the possibility to force the use of Heimdal, but with
3299 warnings and a request that patches get sent to openssl-dev.
3302 *) Add the VC-CE target, introduce the WINCE sysname, and add
3303 INSTALL.WCE and appropriate conditionals to make it build.
3304 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3306 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3307 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3308 edit numbers of the version.
3309 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3311 *) Introduce safe string copy and catenation functions
3312 (BUF_strlcpy() and BUF_strlcat()).
3313 [Ben Laurie (CHATS) and Richard Levitte]
3315 *) Avoid using fixed-size buffers for one-line DNs.
3316 [Ben Laurie (CHATS)]
3318 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3319 resizing buffers containing secrets, and use where appropriate.
3320 [Ben Laurie (CHATS)]
3322 *) Avoid using fixed size buffers for configuration file location.
3323 [Ben Laurie (CHATS)]
3325 *) Avoid filename truncation for various CA files.
3326 [Ben Laurie (CHATS)]
3328 *) Use sizeof in preference to magic numbers.
3329 [Ben Laurie (CHATS)]
3331 *) Avoid filename truncation in cert requests.
3332 [Ben Laurie (CHATS)]
3334 *) Add assertions to check for (supposedly impossible) buffer
3336 [Ben Laurie (CHATS)]
3338 *) Don't cache truncated DNS entries in the local cache (this could
3339 potentially lead to a spoofing attack).
3340 [Ben Laurie (CHATS)]
3342 *) Fix various buffers to be large enough for hex/decimal
3343 representations in a platform independent manner.
3344 [Ben Laurie (CHATS)]
3346 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3347 resizing buffers containing secrets, and use where appropriate.
3348 [Ben Laurie (CHATS)]
3350 *) Add BIO_indent() to avoid much slightly worrying code to do
3352 [Ben Laurie (CHATS)]
3354 *) Convert sprintf()/BIO_puts() to BIO_printf().
3355 [Ben Laurie (CHATS)]
3357 *) buffer_gets() could terminate with the buffer only half
3359 [Ben Laurie (CHATS)]
3361 *) Add assertions to prevent user-supplied crypto functions from
3362 overflowing internal buffers by having large block sizes, etc.
3363 [Ben Laurie (CHATS)]
3365 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3367 [Ben Laurie (CHATS)]
3369 *) Eliminate unused copy of key in RC4.
3370 [Ben Laurie (CHATS)]
3372 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3373 [Ben Laurie (CHATS)]
3375 *) Fix off-by-one error in EGD path.
3376 [Ben Laurie (CHATS)]
3378 *) If RANDFILE path is too long, ignore instead of truncating.
3379 [Ben Laurie (CHATS)]
3381 *) Eliminate unused and incorrectly sized X.509 structure
3383 [Ben Laurie (CHATS)]
3385 *) Eliminate unused and dangerous function knumber().
3386 [Ben Laurie (CHATS)]
3388 *) Eliminate unused and dangerous structure, KSSL_ERR.
3389 [Ben Laurie (CHATS)]
3391 *) Protect against overlong session ID context length in an encoded
3392 session object. Since these are local, this does not appear to be
3394 [Ben Laurie (CHATS)]
3396 *) Change from security patch (see 0.9.6e below) that did not affect
3397 the 0.9.6 release series:
3399 Remote buffer overflow in SSL3 protocol - an attacker could
3400 supply an oversized master key in Kerberos-enabled versions.
3402 [Ben Laurie (CHATS)]
3404 *) Change the SSL kerb5 codes to match RFC 2712.
3407 *) Make -nameopt work fully for req and add -reqopt switch.
3408 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3410 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3411 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3413 *) Make sure tests can be performed even if the corresponding algorithms
3414 have been removed entirely. This was also the last step to make
3415 OpenSSL compilable with DJGPP under all reasonable conditions.
3416 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3418 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3419 to allow version independent disabling of normally unselected ciphers,
3420 which may be activated as a side-effect of selecting a single cipher.
3422 (E.g., cipher list string "RSA" enables ciphersuites that are left
3423 out of "ALL" because they do not provide symmetric encryption.
3424 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3425 [Lutz Jaenicke, Bodo Moeller]
3427 *) Add appropriate support for separate platform-dependent build
3428 directories. The recommended way to make a platform-dependent
3429 build directory is the following (tested on Linux), maybe with
3432 # Place yourself outside of the OpenSSL source tree. In
3433 # this example, the environment variable OPENSSL_SOURCE
3434 # is assumed to contain the absolute OpenSSL source directory.
3435 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3436 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3437 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3438 mkdir -p `dirname $F`
3439 ln -s $OPENSSL_SOURCE/$F $F
3442 To be absolutely sure not to disturb the source tree, a "make clean"
3443 is a good thing. If it isn't successfull, don't worry about it,
3444 it probably means the source directory is very clean.
3447 *) Make sure any ENGINE control commands make local copies of string
3448 pointers passed to them whenever necessary. Otherwise it is possible
3449 the caller may have overwritten (or deallocated) the original string
3450 data when a later ENGINE operation tries to use the stored values.
3451 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3453 *) Improve diagnostics in file reading and command-line digests.
3454 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3456 *) Add AES modes CFB and OFB to the object database. Correct an
3457 error in AES-CFB decryption.
3460 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3461 allows existing EVP_CIPHER_CTX structures to be reused after
3462 calling EVP_*Final(). This behaviour is used by encryption
3463 BIOs and some applications. This has the side effect that
3464 applications must explicitly clean up cipher contexts with
3465 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3468 *) Check the values of dna and dnb in bn_mul_recursive before calling
3469 bn_mul_comba (a non zero value means the a or b arrays do not contain
3470 n2 elements) and fallback to bn_mul_normal if either is not zero.
3473 *) Fix escaping of non-ASCII characters when using the -subj option
3474 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3477 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3478 form for "surname", serialNumber has no short form.
3479 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3480 therefore remove "mail" short name for "internet 7".
3481 The OID for unique identifiers in X509 certificates is
3482 x500UniqueIdentifier, not uniqueIdentifier.
3483 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3486 *) Add an "init" command to the ENGINE config module and auto initialize
3487 ENGINEs. Without any "init" command the ENGINE will be initialized
3488 after all ctrl commands have been executed on it. If init=1 the
3489 ENGINE is initailized at that point (ctrls before that point are run
3490 on the uninitialized ENGINE and after on the initialized one). If
3491 init=0 then the ENGINE will not be iniatialized at all.
3494 *) Fix the 'app_verify_callback' interface so that the user-defined
3495 argument is actually passed to the callback: In the
3496 SSL_CTX_set_cert_verify_callback() prototype, the callback
3497 declaration has been changed from
3500 int (*cb)(X509_STORE_CTX *,void *);
3501 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3502 i=s->ctx->app_verify_callback(&ctx)
3503 has been changed into
3504 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3506 To update applications using SSL_CTX_set_cert_verify_callback(),
3507 a dummy argument can be added to their callback functions.
3508 [D. K. Smetters <smetters@parc.xerox.com>]
3510 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3511 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3513 *) Add and OPENSSL_LOAD_CONF define which will cause
3514 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3515 This allows older applications to transparently support certain
3516 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3517 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3518 load the config file and OPENSSL_add_all_algorithms_conf() which will
3519 always load it have also been added.
3522 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3523 Adjust NIDs and EVP layer.
3524 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3526 *) Config modules support in openssl utility.
3528 Most commands now load modules from the config file,
3529 though in a few (such as version) this isn't done
3530 because it couldn't be used for anything.
3532 In the case of ca and req the config file used is
3533 the same as the utility itself: that is the -config
3534 command line option can be used to specify an
3538 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3539 use "openssl_conf" if filename is NULL use default openssl config file.
3542 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3543 config section name. Add a new flag to tolerate a missing config file
3544 and move code to CONF_modules_load_file().
3547 *) Support for crypto accelerator cards from Accelerated Encryption
3548 Processing, www.aep.ie. (Use engine 'aep')
3549 The support was copied from 0.9.6c [engine] and adapted/corrected
3550 to work with the new engine framework.
3551 [AEP Inc. and Richard Levitte]
3553 *) Support for SureWare crypto accelerator cards from Baltimore
3554 Technologies. (Use engine 'sureware')
3555 The support was copied from 0.9.6c [engine] and adapted
3556 to work with the new engine framework.
3559 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3560 make the newer ENGINE framework commands for the CHIL engine work.
3561 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3563 *) Make it possible to produce shared libraries on ReliantUNIX.
3564 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3566 *) Add the configuration target debug-linux-ppro.
3567 Make 'openssl rsa' use the general key loading routines
3568 implemented in apps.c, and make those routines able to
3569 handle the key format FORMAT_NETSCAPE and the variant
3571 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3573 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3574 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3576 *) Add -keyform to rsautl, and document -engine.
3577 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3579 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3580 BIO_R_NO_SUCH_FILE error code rather than the generic
3581 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3584 *) Add new functions
3586 ERR_peek_last_error_line
3587 ERR_peek_last_error_line_data.
3588 These are similar to
3591 ERR_peek_error_line_data,
3592 but report on the latest error recorded rather than the first one
3593 still in the error queue.
3594 [Ben Laurie, Bodo Moeller]
3596 *) default_algorithms option in ENGINE config module. This allows things
3598 default_algorithms = ALL
3599 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3602 *) Prelminary ENGINE config module.
3605 *) New experimental application configuration code.
3608 *) Change the AES code to follow the same name structure as all other
3609 symmetric ciphers, and behave the same way. Move everything to
3610 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3611 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3613 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3614 [Ben Laurie and Theo de Raadt]
3616 *) Add option to output public keys in req command.
3617 [Massimiliano Pala madwolf@openca.org]
3619 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3620 (up to about 10% better than before for P-192 and P-224).
3623 *) New functions/macros
3625 SSL_CTX_set_msg_callback(ctx, cb)
3626 SSL_CTX_set_msg_callback_arg(ctx, arg)
3627 SSL_set_msg_callback(ssl, cb)
3628 SSL_set_msg_callback_arg(ssl, arg)
3630 to request calling a callback function
3632 void cb(int write_p, int version, int content_type,
3633 const void *buf, size_t len, SSL *ssl, void *arg)
3635 whenever a protocol message has been completely received
3636 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3637 protocol version according to which the SSL library interprets
3638 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3639 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3640 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3641 specification (change_cipher_spec(20), alert(21), handshake(22)).
3642 'buf' and 'len' point to the actual message, 'ssl' to the
3643 SSL object, and 'arg' is the application-defined value set by
3644 SSL[_CTX]_set_msg_callback_arg().
3646 'openssl s_client' and 'openssl s_server' have new '-msg' options
3647 to enable a callback that displays all protocol messages.
3650 *) Change the shared library support so shared libraries are built as
3651 soon as the corresponding static library is finished, and thereby get
3652 openssl and the test programs linked against the shared library.
3653 This still only happens when the keyword "shard" has been given to
3654 the configuration scripts.
3656 NOTE: shared library support is still an experimental thing, and
3657 backward binary compatibility is still not guaranteed.
3658 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3660 *) Add support for Subject Information Access extension.
3661 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3663 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3664 additional bytes when new memory had to be allocated, not just
3665 when reusing an existing buffer.
3668 *) New command line and configuration option 'utf8' for the req command.
3669 This allows field values to be specified as UTF8 strings.
3672 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3673 runs for the former and machine-readable output for the latter.
3676 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3677 of the e-mail address in the DN (i.e., it will go into a certificate
3678 extension only). The new configuration file option 'email_in_dn = no'
3679 has the same effect.
3680 [Massimiliano Pala madwolf@openca.org]
3682 *) Change all functions with names starting with des_ to be starting
3683 with DES_ instead. Add wrappers that are compatible with libdes,
3684 but are named _ossl_old_des_*. Finally, add macros that map the
3685 des_* symbols to the corresponding _ossl_old_des_* if libdes
3686 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3687 desired, the des_* symbols will be mapped to DES_*, with one
3690 Since we provide two compatibility mappings, the user needs to
3691 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3692 compatibility is desired. The default (i.e., when that macro
3693 isn't defined) is OpenSSL 0.9.6c compatibility.
3695 There are also macros that enable and disable the support of old
3696 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3697 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3698 are defined, the default will apply: to support the old des routines.
3700 In either case, one must include openssl/des.h to get the correct
3701 definitions. Do not try to just include openssl/des_old.h, that
3704 NOTE: This is a major break of an old API into a new one. Software
3705 authors are encouraged to switch to the DES_ style functions. Some
3706 time in the future, des_old.h and the libdes compatibility functions
3707 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3708 default), and then completely removed.
3711 *) Test for certificates which contain unsupported critical extensions.
3712 If such a certificate is found during a verify operation it is
3713 rejected by default: this behaviour can be overridden by either
3714 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3715 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3716 X509_supported_extension() has also been added which returns 1 if a
3717 particular extension is supported.
3720 *) Modify the behaviour of EVP cipher functions in similar way to digests
3721 to retain compatibility with existing code.
3724 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3725 compatibility with existing code. In particular the 'ctx' parameter does
3726 not have to be to be initialized before the call to EVP_DigestInit() and
3727 it is tidied up after a call to EVP_DigestFinal(). New function
3728 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3729 EVP_MD_CTX_copy() changed to not require the destination to be
3730 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3731 requires the destination to be valid.
3733 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3734 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3737 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3738 so that complete 'Handshake' protocol structures are kept in memory
3739 instead of overwriting 'msg_type' and 'length' with 'body' data.
3742 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3743 [Massimo Santin via Richard Levitte]
3745 *) Major restructuring to the underlying ENGINE code. This includes
3746 reduction of linker bloat, separation of pure "ENGINE" manipulation
3747 (initialisation, etc) from functionality dealing with implementations
3748 of specific crypto iterfaces. This change also introduces integrated
3749 support for symmetric ciphers and digest implementations - so ENGINEs
3750 can now accelerate these by providing EVP_CIPHER and EVP_MD
3751 implementations of their own. This is detailed in crypto/engine/README
3752 as it couldn't be adequately described here. However, there are a few
3753 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3754 were changed in the original introduction of ENGINE code have now
3755 reverted back - the hooking from this code to ENGINE is now a good
3756 deal more passive and at run-time, operations deal directly with
3757 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3758 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3759 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3760 they were not being used by the framework as there is no concept of a
3761 BIGNUM_METHOD and they could not be generalised to the new
3762 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3763 ENGINE_cpy() has been removed as it cannot be consistently defined in
3767 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3770 *) Change mkdef.pl to sort symbols that get the same entry number,
3771 and make sure the automatically generated functions ERR_load_*
3772 become part of libeay.num as well.
3775 *) New function SSL_renegotiate_pending(). This returns true once
3776 renegotiation has been requested (either SSL_renegotiate() call
3777 or HelloRequest/ClientHello receveived from the peer) and becomes
3778 false once a handshake has been completed.
3779 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3780 sends a HelloRequest, but does not ensure that a handshake takes
3781 place. SSL_renegotiate_pending() is useful for checking if the
3782 client has followed the request.)
3785 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3786 By default, clients may request session resumption even during
3787 renegotiation (if session ID contexts permit); with this option,
3788 session resumption is possible only in the first handshake.
3790 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3791 more bits available for options that should not be part of
3792 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3795 *) Add some demos for certificate and certificate request creation.
3798 *) Make maximum certificate chain size accepted from the peer application
3799 settable (SSL*_get/set_max_cert_list()), as proposed by
3800 "Douglas E. Engert" <deengert@anl.gov>.
3803 *) Add support for shared libraries for Unixware-7
3804 (Boyd Lynn Gerber <gerberb@zenez.com>).
3807 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3808 be done prior to destruction. Use this to unload error strings from
3809 ENGINEs that load their own error strings. NB: This adds two new API
3810 functions to "get" and "set" this destroy handler in an ENGINE.
3813 *) Alter all existing ENGINE implementations (except "openssl" and
3814 "openbsd") to dynamically instantiate their own error strings. This
3815 makes them more flexible to be built both as statically-linked ENGINEs
3816 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3817 Also, add stub code to each that makes building them as self-contained
3818 shared-libraries easier (see README.ENGINE).
3821 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3822 implementations into applications that are completely implemented in
3823 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3824 commands that can be used to configure what shared-library to load and
3825 to control aspects of the way it is handled. Also, made an update to
3826 the README.ENGINE file that brings its information up-to-date and
3827 provides some information and instructions on the "dynamic" ENGINE
3828 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3831 *) Make it possible to unload ranges of ERR strings with a new
3832 "ERR_unload_strings" function.
3835 *) Add a copy() function to EVP_MD.
3838 *) Make EVP_MD routines take a context pointer instead of just the
3839 md_data void pointer.
3842 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3843 that the digest can only process a single chunk of data
3844 (typically because it is provided by a piece of
3845 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3846 is only going to provide a single chunk of data, and hence the
3847 framework needn't accumulate the data for oneshot drivers.
3850 *) As with "ERR", make it possible to replace the underlying "ex_data"
3851 functions. This change also alters the storage and management of global
3852 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3853 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3854 index counters. The API functions that use this state have been changed
3855 to take a "class_index" rather than pointers to the class's local STACK
3856 and counter, and there is now an API function to dynamically create new
3857 classes. This centralisation allows us to (a) plug a lot of the
3858 thread-safety problems that existed, and (b) makes it possible to clean
3859 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3860 such data would previously have always leaked in application code and
3861 workarounds were in place to make the memory debugging turn a blind eye
3862 to it. Application code that doesn't use this new function will still
3863 leak as before, but their memory debugging output will announce it now
3864 rather than letting it slide.
3866 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3867 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3868 has a return value to indicate success or failure.
3871 *) Make it possible to replace the underlying "ERR" functions such that the
3872 global state (2 LHASH tables and 2 locks) is only used by the "default"
3873 implementation. This change also adds two functions to "get" and "set"
3874 the implementation prior to it being automatically set the first time
3875 any other ERR function takes place. Ie. an application can call "get",
3876 pass the return value to a module it has just loaded, and that module
3877 can call its own "set" function using that value. This means the
3878 module's "ERR" operations will use (and modify) the error state in the
3879 application and not in its own statically linked copy of OpenSSL code.
3882 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3883 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3884 the operation, and provides a more encapsulated way for external code
3885 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3886 to use these functions rather than manually incrementing the counts.
3888 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3891 *) Add EVP test program.
3894 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3897 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3898 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3899 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3900 These allow a CRL to be built without having to access X509_CRL fields
3901 directly. Modify 'ca' application to use new functions.
3904 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3905 bug workarounds. Rollback attack detection is a security feature.
3906 The problem will only arise on OpenSSL servers when TLSv1 is not
3907 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3908 Software authors not wanting to support TLSv1 will have special reasons
3909 for their choice and can explicitly enable this option.
3910 [Bodo Moeller, Lutz Jaenicke]
3912 *) Rationalise EVP so it can be extended: don't include a union of
3913 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3914 (similar to those existing for EVP_CIPHER_CTX).
3919 EVP_MD_CTX_init(&md); /* new function call */
3920 EVP_DigestInit(&md, EVP_sha1());
3921 EVP_DigestUpdate(&md, in, len);
3922 EVP_DigestFinal(&md, out, NULL);
3923 EVP_MD_CTX_cleanup(&md); /* new function call */
3927 *) Make DES key schedule conform to the usual scheme, as well as
3928 correcting its structure. This means that calls to DES functions
3929 now have to pass a pointer to a des_key_schedule instead of a
3930 plain des_key_schedule (which was actually always a pointer
3933 des_key_schedule ks;
3935 des_set_key_checked(..., &ks);
3936 des_ncbc_encrypt(..., &ks, ...);
3938 (Note that a later change renames 'des_...' into 'DES_...'.)
3941 *) Initial reduction of linker bloat: the use of some functions, such as
3942 PEM causes large amounts of unused functions to be linked in due to
3943 poor organisation. For example pem_all.c contains every PEM function
3944 which has a knock on effect of linking in large amounts of (unused)
3945 ASN1 code. Grouping together similar functions and splitting unrelated
3946 functions prevents this.
3949 *) Cleanup of EVP macros.
3952 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3953 correct _ecb suffix.
3956 *) Add initial OCSP responder support to ocsp application. The
3957 revocation information is handled using the text based index
3958 use by the ca application. The responder can either handle
3959 requests generated internally, supplied in files (for example
3960 via a CGI script) or using an internal minimal server.
3963 *) Add configuration choices to get zlib compression for TLS.
3966 *) Changes to Kerberos SSL for RFC 2712 compliance:
3967 1. Implemented real KerberosWrapper, instead of just using
3968 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3969 2. Implemented optional authenticator field of KerberosWrapper.
3971 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3972 and authenticator structs; see crypto/krb5/.
3974 Generalized Kerberos calls to support multiple Kerberos libraries.
3975 [Vern Staats <staatsvr@asc.hpc.mil>,
3976 Jeffrey Altman <jaltman@columbia.edu>
3977 via Richard Levitte]
3979 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3980 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3981 values for each of the key sizes rather than having just
3982 parameters (and 'speed' generating keys each time).
3985 *) Speed up EVP routines.
3988 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3989 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3990 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3991 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3993 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3994 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3995 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3998 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4000 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4003 *) Added the OS2-EMX target.
4004 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4006 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4007 to support NCONF routines in extension code. New function CONF_set_nconf()
4008 to allow functions which take an NCONF to also handle the old LHASH
4009 structure: this means that the old CONF compatible routines can be
4010 retained (in particular wrt extensions) without having to duplicate the
4011 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4014 *) Enhance the general user interface with mechanisms for inner control
4015 and with possibilities to have yes/no kind of prompts.
4018 *) Change all calls to low level digest routines in the library and
4019 applications to use EVP. Add missing calls to HMAC_cleanup() and
4020 don't assume HMAC_CTX can be copied using memcpy().
4021 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4023 *) Add the possibility to control engines through control names but with
4024 arbitrary arguments instead of just a string.
4025 Change the key loaders to take a UI_METHOD instead of a callback
4026 function pointer. NOTE: this breaks binary compatibility with earlier
4027 versions of OpenSSL [engine].
4028 Adapt the nCipher code for these new conditions and add a card insertion
4032 *) Enhance the general user interface with mechanisms to better support
4033 dialog box interfaces, application-defined prompts, the possibility
4034 to use defaults (for example default passwords from somewhere else)
4035 and interrupts/cancellations.
4038 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4039 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4042 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4043 tidy up some unnecessarily weird code in 'sk_new()').
4044 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4046 *) Change the key loading routines for ENGINEs to use the same kind
4047 callback (pem_password_cb) as all other routines that need this
4051 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4052 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4053 than this minimum value is recommended.
4056 *) New random seeder for OpenVMS, using the system process statistics
4057 that are easily reachable.
4060 *) Windows apparently can't transparently handle global
4061 variables defined in DLLs. Initialisations such as:
4063 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4065 wont compile. This is used by the any applications that need to
4066 declare their own ASN1 modules. This was fixed by adding the option
4067 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4068 needed for static libraries under Win32.
4071 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4072 setting of purpose and trust fields. New X509_STORE trust and
4073 purpose functions and tidy up setting in other SSL functions.
4076 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4077 structure. These are inherited by X509_STORE_CTX when it is
4078 initialised. This allows various defaults to be set in the
4079 X509_STORE structure (such as flags for CRL checking and custom
4080 purpose or trust settings) for functions which only use X509_STORE_CTX
4081 internally such as S/MIME.
4083 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4084 trust settings if they are not set in X509_STORE. This allows X509_STORE
4085 purposes and trust (in S/MIME for example) to override any set by default.
4087 Add command line options for CRL checking to smime, s_client and s_server
4091 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4092 are set then the CRL is looked up in the X509_STORE structure and
4093 its validity and signature checked, then if the certificate is found
4094 in the CRL the verify fails with a revoked error.
4096 Various new CRL related callbacks added to X509_STORE_CTX structure.
4098 Command line options added to 'verify' application to support this.
4100 This needs some additional work, such as being able to handle multiple
4101 CRLs with different times, extension based lookup (rather than just
4102 by subject name) and ultimately more complete V2 CRL extension
4106 *) Add a general user interface API (crypto/ui/). This is designed
4107 to replace things like des_read_password and friends (backward
4108 compatibility functions using this new API are provided).
4109 The purpose is to remove prompting functions from the DES code
4110 section as well as provide for prompting through dialog boxes in
4111 a window system and the like.
4114 *) Add "ex_data" support to ENGINE so implementations can add state at a
4115 per-structure level rather than having to store it globally.
4118 *) Make it possible for ENGINE structures to be copied when retrieved by
4119 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4120 This causes the "original" ENGINE structure to act like a template,
4121 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4122 operational state can be localised to each ENGINE structure, despite the
4123 fact they all share the same "methods". New ENGINE structures returned in
4124 this case have no functional references and the return value is the single
4125 structural reference. This matches the single structural reference returned
4126 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4130 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4131 needs to match any other type at all we need to manually clear the
4135 *) Changes to the "openssl engine" utility to include;
4136 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4137 about an ENGINE's available control commands.
4138 - executing control commands from command line arguments using the
4139 '-pre' and '-post' switches. '-post' is only used if '-t' is
4140 specified and the ENGINE is successfully initialised. The syntax for
4141 the individual commands are colon-separated, for example;
4142 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4145 *) New dynamic control command support for ENGINEs. ENGINEs can now
4146 declare their own commands (numbers), names (strings), descriptions,
4147 and input types for run-time discovery by calling applications. A
4148 subset of these commands are implicitly classed as "executable"
4149 depending on their input type, and only these can be invoked through
4150 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4151 can be based on user input, config files, etc). The distinction is
4152 that "executable" commands cannot return anything other than a boolean
4153 result and can only support numeric or string input, whereas some
4154 discoverable commands may only be for direct use through
4155 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4156 pointers, or other custom uses. The "executable" commands are to
4157 support parameterisations of ENGINE behaviour that can be
4158 unambiguously defined by ENGINEs and used consistently across any
4159 OpenSSL-based application. Commands have been added to all the
4160 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4161 control over shared-library paths without source code alterations.
4164 *) Changed all ENGINE implementations to dynamically allocate their
4165 ENGINEs rather than declaring them statically. Apart from this being
4166 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4167 this also allows the implementations to compile without using the
4168 internal engine_int.h header.
4171 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4172 'const' value. Any code that should be able to modify a RAND_METHOD
4173 should already have non-const pointers to it (ie. they should only
4174 modify their own ones).
4177 *) Made a variety of little tweaks to the ENGINE code.
4178 - "atalla" and "ubsec" string definitions were moved from header files
4179 to C code. "nuron" string definitions were placed in variables
4180 rather than hard-coded - allowing parameterisation of these values
4181 later on via ctrl() commands.
4182 - Removed unused "#if 0"'d code.
4183 - Fixed engine list iteration code so it uses ENGINE_free() to release
4184 structural references.
4185 - Constified the RAND_METHOD element of ENGINE structures.
4186 - Constified various get/set functions as appropriate and added
4187 missing functions (including a catch-all ENGINE_cpy that duplicates
4188 all ENGINE values onto a new ENGINE except reference counts/state).
4189 - Removed NULL parameter checks in get/set functions. Setting a method
4190 or function to NULL is a way of cancelling out a previously set
4191 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4192 and doesn't justify the extra error symbols and code.
4193 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4194 flags from engine_int.h to engine.h.
4195 - Changed prototypes for ENGINE handler functions (init(), finish(),
4196 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4199 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4200 to the algorithm using long division. The binary algorithm can be
4201 used only if the modulus is odd. On 32-bit systems, it is faster
4202 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4203 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4204 up to 450 bits. In 64-bit environments, the binary algorithm
4205 appears to be advantageous for much longer moduli; here we use it
4206 for moduli up to 2048 bits.
4209 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4210 could not support the combine flag in choice fields.
4213 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4214 extensions from a certificate request to the certificate.
4217 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4218 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4219 file: this allows the display of the certificate about to be
4220 signed to be customised, to allow certain fields to be included
4221 or excluded and extension details. The old system didn't display
4222 multicharacter strings properly, omitted fields not in the policy
4223 and couldn't display additional details such as extensions.
4226 *) Function EC_POINTs_mul for multiple scalar multiplication
4227 of an arbitrary number of elliptic curve points
4228 \sum scalars[i]*points[i],
4229 optionally including the generator defined for the EC_GROUP:
4230 scalar*generator + \sum scalars[i]*points[i].
4232 EC_POINT_mul is a simple wrapper function for the typical case
4233 that the point list has just one item (besides the optional
4237 *) First EC_METHODs for curves over GF(p):
4239 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4240 operations and provides various method functions that can also
4241 operate with faster implementations of modular arithmetic.
4243 EC_GFp_mont_method() reuses most functions that are part of
4244 EC_GFp_simple_method, but uses Montgomery arithmetic.
4246 [Bodo Moeller; point addition and point doubling
4247 implementation directly derived from source code provided by
4248 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4250 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4251 crypto/ec/ec_lib.c):
4253 Curves are EC_GROUP objects (with an optional group generator)
4254 based on EC_METHODs that are built into the library.
4256 Points are EC_POINT objects based on EC_GROUP objects.
4258 Most of the framework would be able to handle curves over arbitrary
4259 finite fields, but as there are no obvious types for fields other
4260 than GF(p), some functions are limited to that for now.
4263 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4264 that the file contains a complete HTTP response.
4267 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4268 change the def and num file printf format specifier from "%-40sXXX"
4269 to "%-39s XXX". The latter will always guarantee a space after the
4270 field while the former will cause them to run together if the field
4271 is 40 of more characters long.
4274 *) Constify the cipher and digest 'method' functions and structures
4275 and modify related functions to take constant EVP_MD and EVP_CIPHER
4279 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4280 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4283 *) Modify EVP_Digest*() routines so they now return values. Although the
4284 internal software routines can never fail additional hardware versions
4288 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4290 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4291 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4294 ERR_R_NESTED_ASN1_ERROR
4296 ERR_R_MISSING_ASN1_EOS
4297 were 4 .. 9, conflicting with
4298 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4300 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4301 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4303 Add new error code 'ERR_R_INTERNAL_ERROR'.
4306 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4310 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4311 sets the subject name for a new request or supersedes the
4312 subject name in a given request. Formats that can be parsed are
4313 'CN=Some Name, OU=myOU, C=IT'
4315 'CN=Some Name/OU=myOU/C=IT'.
4317 Add options '-batch' and '-verbose' to 'openssl req'.
4318 [Massimiliano Pala <madwolf@hackmasters.net>]
4320 *) Introduce the possibility to access global variables through
4321 functions on platform were that's the best way to handle exporting
4322 global variables in shared libraries. To enable this functionality,
4323 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4324 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4325 is normally done by Configure or something similar).
4327 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4328 in the source file (foo.c) like this:
4330 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4331 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4333 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4334 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4336 OPENSSL_DECLARE_GLOBAL(int,foo);
4337 #define foo OPENSSL_GLOBAL_REF(foo)
4338 OPENSSL_DECLARE_GLOBAL(double,bar);
4339 #define bar OPENSSL_GLOBAL_REF(bar)
4341 The #defines are very important, and therefore so is including the
4342 header file everywhere where the defined globals are used.
4344 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4345 of ASN.1 items, but that structure is a bit different.
4347 The largest change is in util/mkdef.pl which has been enhanced with
4348 better and easier to understand logic to choose which symbols should
4349 go into the Windows .def files as well as a number of fixes and code
4350 cleanup (among others, algorithm keywords are now sorted
4351 lexicographically to avoid constant rewrites).
4354 *) In BN_div() keep a copy of the sign of 'num' before writing the
4355 result to 'rm' because if rm==num the value will be overwritten
4356 and produce the wrong result if 'num' is negative: this caused
4357 problems with BN_mod() and BN_nnmod().
4360 *) Function OCSP_request_verify(). This checks the signature on an
4361 OCSP request and verifies the signer certificate. The signer
4362 certificate is just checked for a generic purpose and OCSP request
4366 *) Add OCSP_check_validity() function to check the validity of OCSP
4367 responses. OCSP responses are prepared in real time and may only
4368 be a few seconds old. Simply checking that the current time lies
4369 between thisUpdate and nextUpdate max reject otherwise valid responses
4370 caused by either OCSP responder or client clock inaccuracy. Instead
4371 we allow thisUpdate and nextUpdate to fall within a certain period of
4372 the current time. The age of the response can also optionally be
4373 checked. Two new options -validity_period and -status_age added to
4377 *) If signature or public key algorithm is unrecognized print out its
4378 OID rather that just UNKNOWN.
4381 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4382 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4383 ID to be generated from the issuer certificate alone which can then be
4384 passed to OCSP_id_issuer_cmp().
4387 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4388 ASN1 modules to export functions returning ASN1_ITEM pointers
4389 instead of the ASN1_ITEM structures themselves. This adds several
4390 new macros which allow the underlying ASN1 function/structure to
4391 be accessed transparently. As a result code should not use ASN1_ITEM
4392 references directly (such as &X509_it) but instead use the relevant
4393 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4394 use of the new ASN1 code on platforms where exporting structures
4395 is problematical (for example in shared libraries) but exporting
4396 functions returning pointers to structures is not.
4399 *) Add support for overriding the generation of SSL/TLS session IDs.
4400 These callbacks can be registered either in an SSL_CTX or per SSL.
4401 The purpose of this is to allow applications to control, if they wish,
4402 the arbitrary values chosen for use as session IDs, particularly as it
4403 can be useful for session caching in multiple-server environments. A
4404 command-line switch for testing this (and any client code that wishes
4405 to use such a feature) has been added to "s_server".
4406 [Geoff Thorpe, Lutz Jaenicke]
4408 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4409 of the form '#if defined(...) || defined(...) || ...' and
4410 '#if !defined(...) && !defined(...) && ...'. This also avoids
4411 the growing number of special cases it was previously handling.
4414 *) Make all configuration macros available for application by making
4415 sure they are available in opensslconf.h, by giving them names starting
4416 with "OPENSSL_" to avoid conflicts with other packages and by making
4417 sure e_os2.h will cover all platform-specific cases together with
4419 Additionally, it is now possible to define configuration/platform-
4420 specific names (called "system identities"). In the C code, these
4421 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4422 macro with the name beginning with "OPENSSL_SYS_", which is determined
4423 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4427 *) New option -set_serial to 'req' and 'x509' this allows the serial
4428 number to use to be specified on the command line. Previously self
4429 signed certificates were hard coded with serial number 0 and the
4430 CA options of 'x509' had to use a serial number in a file which was
4434 *) New options to 'ca' utility to support V2 CRL entry extensions.
4435 Currently CRL reason, invalidity date and hold instruction are
4436 supported. Add new CRL extensions to V3 code and some new objects.
4439 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4440 disable standard block padding (aka PKCS#5 padding) in the EVP
4441 API, which was previously mandatory. This means that the data is
4442 not padded in any way and so the total length much be a multiple
4443 of the block size, otherwise an error occurs.
4446 *) Initial (incomplete) OCSP SSL support.
4449 *) New function OCSP_parse_url(). This splits up a URL into its host,
4450 port and path components: primarily to parse OCSP URLs. New -url
4451 option to ocsp utility.
4454 *) New nonce behavior. The return value of OCSP_check_nonce() now
4455 reflects the various checks performed. Applications can decide
4456 whether to tolerate certain situations such as an absent nonce
4457 in a response when one was present in a request: the ocsp application
4458 just prints out a warning. New function OCSP_add1_basic_nonce()
4459 this is to allow responders to include a nonce in a response even if
4460 the request is nonce-less.
4463 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4464 skipped when using openssl x509 multiple times on a single input file,
4465 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4468 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4469 set string type: to handle setting ASN1_TIME structures. Fix ca
4470 utility to correctly initialize revocation date of CRLs.
4473 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4474 the clients preferred ciphersuites and rather use its own preferences.
4475 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4476 Internet Explorer by ensuring unchanged hash method during stepup.
4477 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4480 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4481 to aes and add a new 'exist' option to print out symbols that don't
4485 *) Additional options to ocsp utility to allow flags to be set and
4486 additional certificates supplied.
4489 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4490 OCSP client a number of certificate to only verify the response
4494 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4495 handle the new API. Currently only ECB, CBC modes supported. Add new
4498 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4499 Encryption Standard (AES) Ciphersuites for Transport Layer
4500 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4501 not enabled by default and were not part of the "ALL" ciphersuite
4502 alias because they were not yet official; they could be
4503 explicitly requested by specifying the "AESdraft" ciphersuite
4504 group alias. In the final release of OpenSSL 0.9.7, the group
4505 alias is called "AES" and is part of "ALL".)
4506 [Ben Laurie, Steve Henson, Bodo Moeller]
4508 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4509 request to response.
4512 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4513 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4514 extract information from a certificate request. OCSP_response_create()
4515 creates a response and optionally adds a basic response structure.
4516 OCSP_basic_add1_status() adds a complete single response to a basic
4517 response and returns the OCSP_SINGLERESP structure just added (to allow
4518 extensions to be included for example). OCSP_basic_add1_cert() adds a
4519 certificate to a basic response and OCSP_basic_sign() signs a basic
4520 response with various flags. New helper functions ASN1_TIME_check()
4521 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4522 (converts ASN1_TIME to GeneralizedTime).
4525 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4526 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4527 structure from a certificate. X509_pubkey_digest() digests the public_key
4528 contents: this is used in various key identifiers.
4531 *) Make sk_sort() tolerate a NULL argument.
4532 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4534 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4535 passed by the function are trusted implicitly. If any of them signed the
4536 response then it is assumed to be valid and is not verified.
4539 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4540 to data. This was previously part of the PKCS7 ASN1 code. This
4541 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4542 [Steve Henson, reported by Kenneth R. Robinette
4543 <support@securenetterm.com>]
4545 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4546 routines: without these tracing memory leaks is very painful.
4547 Fix leaks in PKCS12 and PKCS7 routines.
4550 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4551 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4552 effectively meant GeneralizedTime would never be used. Now it
4553 is initialised to -1 but X509_time_adj() now has to check the value
4554 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4555 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4556 [Steve Henson, reported by Kenneth R. Robinette
4557 <support@securenetterm.com>]
4559 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4560 result in a zero length in the ASN1_INTEGER structure which was
4561 not consistent with the structure when d2i_ASN1_INTEGER() was used
4562 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4563 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4564 where it did not print out a minus for negative ASN1_INTEGER.
4567 *) Add summary printout to ocsp utility. The various functions which
4568 convert status values to strings have been renamed to:
4569 OCSP_response_status_str(), OCSP_cert_status_str() and
4570 OCSP_crl_reason_str() and are no longer static. New options
4571 to verify nonce values and to disable verification. OCSP response
4572 printout format cleaned up.
4575 *) Add additional OCSP certificate checks. These are those specified
4576 in RFC2560. This consists of two separate checks: the CA of the
4577 certificate being checked must either be the OCSP signer certificate
4578 or the issuer of the OCSP signer certificate. In the latter case the
4579 OCSP signer certificate must contain the OCSP signing extended key
4580 usage. This check is performed by attempting to match the OCSP
4581 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4582 in the OCSP_CERTID structures of the response.
4585 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4586 and related routines. This uses the standard OpenSSL certificate
4587 verify routines to perform initial checks (just CA validity) and
4588 to obtain the certificate chain. Then additional checks will be
4589 performed on the chain. Currently the root CA is checked to see
4590 if it is explicitly trusted for OCSP signing. This is used to set
4591 a root CA as a global signing root: that is any certificate that
4592 chains to that CA is an acceptable OCSP signing certificate.
4595 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4596 extensions from a separate configuration file.
4597 As when reading extensions from the main configuration file,
4598 the '-extensions ...' option may be used for specifying the
4600 [Massimiliano Pala <madwolf@comune.modena.it>]
4602 *) New OCSP utility. Allows OCSP requests to be generated or
4603 read. The request can be sent to a responder and the output
4604 parsed, outputed or printed in text form. Not complete yet:
4605 still needs to check the OCSP response validity.
4608 *) New subcommands for 'openssl ca':
4609 'openssl ca -status <serial>' prints the status of the cert with
4610 the given serial number (according to the index file).
4611 'openssl ca -updatedb' updates the expiry status of certificates
4613 [Massimiliano Pala <madwolf@comune.modena.it>]
4615 *) New '-newreq-nodes' command option to CA.pl. This is like
4616 '-newreq', but calls 'openssl req' with the '-nodes' option
4617 so that the resulting key is not encrypted.
4618 [Damien Miller <djm@mindrot.org>]
4620 *) New configuration for the GNU Hurd.
4621 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4623 *) Initial code to implement OCSP basic response verify. This
4624 is currently incomplete. Currently just finds the signer's
4625 certificate and verifies the signature on the response.
4628 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4629 value of OPENSSLDIR. This is available via the new '-d' option
4630 to 'openssl version', and is also included in 'openssl version -a'.
4633 *) Allowing defining memory allocation callbacks that will be given
4634 file name and line number information in additional arguments
4635 (a const char* and an int). The basic functionality remains, as
4636 well as the original possibility to just replace malloc(),
4637 realloc() and free() by functions that do not know about these
4638 additional arguments. To register and find out the current
4639 settings for extended allocation functions, the following
4640 functions are provided:
4642 CRYPTO_set_mem_ex_functions
4643 CRYPTO_set_locked_mem_ex_functions
4644 CRYPTO_get_mem_ex_functions
4645 CRYPTO_get_locked_mem_ex_functions
4647 These work the same way as CRYPTO_set_mem_functions and friends.
4648 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4649 extended allocation function is enabled.
4650 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4651 a conventional allocation function is enabled.
4652 [Richard Levitte, Bodo Moeller]
4654 *) Finish off removing the remaining LHASH function pointer casts.
4655 There should no longer be any prototype-casting required when using
4656 the LHASH abstraction, and any casts that remain are "bugs". See
4657 the callback types and macros at the head of lhash.h for details
4658 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4661 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4662 If /dev/[u]random devices are not available or do not return enough
4663 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4665 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4666 /etc/entropy will be queried once each in this sequence, quering stops
4667 when enough entropy was collected without querying more sockets.
4670 *) Change the Unix RAND_poll() variant to be able to poll several
4671 random devices, as specified by DEVRANDOM, until a sufficient amount
4672 of data has been collected. We spend at most 10 ms on each file
4673 (select timeout) and read in non-blocking mode. DEVRANDOM now
4674 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4675 (previously it was just the string "/dev/urandom"), so on typical
4676 platforms the 10 ms delay will never occur.
4677 Also separate out the Unix variant to its own file, rand_unix.c.
4678 For VMS, there's a currently-empty rand_vms.c.
4681 *) Move OCSP client related routines to ocsp_cl.c. These
4682 provide utility functions which an application needing
4683 to issue a request to an OCSP responder and analyse the
4684 response will typically need: as opposed to those which an
4685 OCSP responder itself would need which will be added later.
4687 OCSP_request_sign() signs an OCSP request with an API similar
4688 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4689 response. OCSP_response_get1_basic() extracts basic response
4690 from response. OCSP_resp_find_status(): finds and extracts status
4691 information from an OCSP_CERTID structure (which will be created
4692 when the request structure is built). These are built from lower
4693 level functions which work on OCSP_SINGLERESP structures but
4694 wont normally be used unless the application wishes to examine
4695 extensions in the OCSP response for example.
4697 Replace nonce routines with a pair of functions.
4698 OCSP_request_add1_nonce() adds a nonce value and optionally
4699 generates a random value. OCSP_check_nonce() checks the
4700 validity of the nonce in an OCSP response.
4703 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4704 This doesn't copy the supplied OCSP_CERTID and avoids the
4705 need to free up the newly created id. Change return type
4706 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4707 This can then be used to add extensions to the request.
4708 Deleted OCSP_request_new(), since most of its functionality
4709 is now in OCSP_REQUEST_new() (and the case insensitive name
4710 clash) apart from the ability to set the request name which
4711 will be added elsewhere.
4714 *) Update OCSP API. Remove obsolete extensions argument from
4715 various functions. Extensions are now handled using the new
4716 OCSP extension code. New simple OCSP HTTP function which
4717 can be used to send requests and parse the response.
4720 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4721 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4722 uses the special reorder version of SET OF to sort the attributes
4723 and reorder them to match the encoded order. This resolves a long
4724 standing problem: a verify on a PKCS7 structure just after signing
4725 it used to fail because the attribute order did not match the
4726 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4727 it uses the received order. This is necessary to tolerate some broken
4728 software that does not order SET OF. This is handled by encoding
4729 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4730 to produce the required SET OF.
4733 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4734 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4735 files to get correct declarations of the ASN.1 item variables.
4738 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4739 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4740 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4741 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4742 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4743 ASN1_ITEM and no wrapper functions.
4746 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4747 replace the old function pointer based I/O routines. Change most of
4748 the *_d2i_bio() and *_d2i_fp() functions to use these.
4751 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4752 lines, recognice more "algorithms" that can be deselected, and make
4753 it complain about algorithm deselection that isn't recognised.
4756 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4757 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4758 to use new functions. Add NO_ASN1_OLD which can be set to remove
4759 some old style ASN1 functions: this can be used to determine if old
4760 code will still work when these eventually go away.
4763 *) New extension functions for OCSP structures, these follow the
4764 same conventions as certificates and CRLs.
4767 *) New function X509V3_add1_i2d(). This automatically encodes and
4768 adds an extension. Its behaviour can be customised with various
4769 flags to append, replace or delete. Various wrappers added for
4770 certifcates and CRLs.
4773 *) Fix to avoid calling the underlying ASN1 print routine when
4774 an extension cannot be parsed. Correct a typo in the
4775 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4778 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4779 entries for variables.
4782 *) Add functionality to apps/openssl.c for detecting locking
4783 problems: As the program is single-threaded, all we have
4784 to do is register a locking callback using an array for
4785 storing which locks are currently held by the program.
4788 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4789 SSL_get_ex_data_X509_STORE_idx(), which is used in
4790 ssl_verify_cert_chain() and thus can be called at any time
4791 during TLS/SSL handshakes so that thread-safety is essential.
4792 Unfortunately, the ex_data design is not at all suited
4793 for multi-threaded use, so it probably should be abolished.
4796 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4797 [Broadcom, tweaked and integrated by Geoff Thorpe]
4799 *) Move common extension printing code to new function
4800 X509V3_print_extensions(). Reorganise OCSP print routines and
4801 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4804 *) New function X509_signature_print() to remove duplication in some
4808 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4809 set (this was treated exactly the same as SET OF previously). This
4810 is used to reorder the STACK representing the structure to match the
4811 encoding. This will be used to get round a problem where a PKCS7
4812 structure which was signed could not be verified because the STACK
4813 order did not reflect the encoded order.
4816 *) Reimplement the OCSP ASN1 module using the new code.
4819 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4820 for its ASN1 operations. The old style function pointers still exist
4821 for now but they will eventually go away.
4824 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4825 completely replaces the old ASN1 functionality with a table driven
4826 encoder and decoder which interprets an ASN1_ITEM structure describing
4827 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4828 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4829 has also been converted to the new form.
4832 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4833 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4834 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4835 for negative moduli.
4838 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4839 of not touching the result's sign bit.
4842 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4846 *) Changed the LHASH code to use prototypes for callbacks, and created
4847 macros to declare and implement thin (optionally static) functions
4848 that provide type-safety and avoid function pointer casting for the
4849 type-specific callbacks.
4852 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4854 [Veers Staats <staatsvr@asc.hpc.mil>,
4855 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4857 *) Reformat the FAQ so the different questions and answers can be divided
4858 in sections depending on the subject.
4861 *) Have the zlib compression code load ZLIB.DLL dynamically under
4865 *) New function BN_mod_sqrt for computing square roots modulo a prime
4866 (using the probabilistic Tonelli-Shanks algorithm unless
4867 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4868 be handled deterministically).
4869 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4871 *) Make BN_mod_inverse faster by explicitly handling small quotients
4872 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4873 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4876 *) New function BN_kronecker.
4879 *) Fix BN_gcd so that it works on negative inputs; the result is
4880 positive unless both parameters are zero.
4881 Previously something reasonably close to an infinite loop was
4882 possible because numbers could be growing instead of shrinking
4883 in the implementation of Euclid's algorithm.
4886 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4887 sign of the number in question.
4889 Fix BN_is_word(a,w) to work correctly for w == 0.
4891 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4892 because its test if the absolute value of 'a' equals 'w'.
4893 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4894 it exists mostly for use in the implementations of BN_is_zero(),
4895 BN_is_one(), and BN_is_word().
4898 *) New function BN_swap.
4901 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4902 the exponentiation functions are more likely to produce reasonable
4903 results on negative inputs.
4906 *) Change BN_mod_mul so that the result is always non-negative.
4907 Previously, it could be negative if one of the factors was negative;
4908 I don't think anyone really wanted that behaviour.
4911 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4912 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4913 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4914 and add new functions:
4923 BN_mod_lshift1_quick
4927 These functions always generate non-negative results.
4929 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4930 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4932 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4933 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4934 be reduced modulo m.
4935 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4938 The following entry accidentily appeared in the CHANGES file
4939 distributed with OpenSSL 0.9.7. The modifications described in
4940 it do *not* apply to OpenSSL 0.9.7.
4942 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4943 was actually never needed) and in BN_mul(). The removal in BN_mul()
4944 required a small change in bn_mul_part_recursive() and the addition
4945 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4946 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4947 bn_sub_words() and bn_add_words() except they take arrays with
4952 *) In 'openssl passwd', verify passwords read from the terminal
4953 unless the '-salt' option is used (which usually means that
4954 verification would just waste user's time since the resulting
4955 hash is going to be compared with some given password hash)
4956 or the new '-noverify' option is used.
4958 This is an incompatible change, but it does not affect
4959 non-interactive use of 'openssl passwd' (passwords on the command
4960 line, '-stdin' option, '-in ...' option) and thus should not
4964 *) Remove all references to RSAref, since there's no more need for it.
4967 *) Make DSO load along a path given through an environment variable
4968 (SHLIB_PATH) with shl_load().
4971 *) Constify the ENGINE code as a result of BIGNUM constification.
4972 Also constify the RSA code and most things related to it. In a
4973 few places, most notable in the depth of the ASN.1 code, ugly
4974 casts back to non-const were required (to be solved at a later
4978 *) Make it so the openssl application has all engines loaded by default.
4981 *) Constify the BIGNUM routines a little more.
4984 *) Add the following functions:
4986 ENGINE_load_cswift()
4988 ENGINE_load_atalla()
4990 ENGINE_load_builtin_engines()
4992 That way, an application can itself choose if external engines that
4993 are built-in in OpenSSL shall ever be used or not. The benefit is
4994 that applications won't have to be linked with libdl or other dso
4995 libraries unless it's really needed.
4997 Changed 'openssl engine' to load all engines on demand.
4998 Changed the engine header files to avoid the duplication of some
4999 declarations (they differed!).
5002 *) 'openssl engine' can now list capabilities.
5005 *) Better error reporting in 'openssl engine'.
5008 *) Never call load_dh_param(NULL) in s_server.
5011 *) Add engine application. It can currently list engines by name and
5012 identity, and test if they are actually available.
5015 *) Improve RPM specification file by forcing symbolic linking and making
5016 sure the installed documentation is also owned by root.root.
5017 [Damien Miller <djm@mindrot.org>]
5019 *) Give the OpenSSL applications more possibilities to make use of
5020 keys (public as well as private) handled by engines.
5023 *) Add OCSP code that comes from CertCo.
5026 *) Add VMS support for the Rijndael code.
5029 *) Added untested support for Nuron crypto accelerator.
5032 *) Add support for external cryptographic devices. This code was
5033 previously distributed separately as the "engine" branch.
5034 [Geoff Thorpe, Richard Levitte]
5036 *) Rework the filename-translation in the DSO code. It is now possible to
5037 have far greater control over how a "name" is turned into a filename
5038 depending on the operating environment and any oddities about the
5039 different shared library filenames on each system.
5042 *) Support threads on FreeBSD-elf in Configure.
5045 *) Fix for SHA1 assembly problem with MASM: it produces
5046 warnings about corrupt line number information when assembling
5047 with debugging information. This is caused by the overlapping
5049 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5052 NCONF_get_number() has no error checking at all. As a replacement,
5053 NCONF_get_number_e() is defined (_e for "error checking") and is
5054 promoted strongly. The old NCONF_get_number is kept around for
5055 binary backward compatibility.
5056 Make it possible for methods to load from something other than a BIO,
5057 by providing a function pointer that is given a name instead of a BIO.
5058 For example, this could be used to load configuration data from an
5062 *) Fix for non blocking accept BIOs. Added new I/O special reason
5063 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5064 with non blocking I/O was not possible because no retry code was
5065 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5069 *) Added the beginnings of Rijndael support.
5072 *) Fix for bug in DirectoryString mask setting. Add support for
5073 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5074 to allow certificate printing to more controllable, additional
5075 'certopt' option to 'x509' to allow new printing options to be
5079 *) Clean old EAY MD5 hack from e_os.h.
5082 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5084 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5085 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5086 [Joe Orton, Steve Henson]
5088 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5090 *) Fix additional bug revealed by the NISCC test suite:
5092 Stop bug triggering large recursion when presented with
5093 certain ASN.1 tags (CVE-2003-0851)
5096 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5098 *) Fix various bugs revealed by running the NISCC test suite:
5100 Stop out of bounds reads in the ASN1 code when presented with
5101 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5103 If verify callback ignores invalid public key errors don't try to check
5104 certificate signature with the NULL public key.
5108 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5109 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5113 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5114 extra data after the compression methods not only for TLS 1.0
5115 but also for SSL 3.0 (as required by the specification).
5116 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5118 *) Change X509_certificate_type() to mark the key as exported/exportable
5119 when it's 512 *bits* long, not 512 bytes.
5122 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5124 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5125 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5126 a protocol version number mismatch like a decryption error
5127 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5130 *) Turn on RSA blinding by default in the default implementation
5131 to avoid a timing attack. Applications that don't want it can call
5132 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5133 They would be ill-advised to do so in most cases.
5134 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5136 *) Change RSA blinding code so that it works when the PRNG is not
5137 seeded (in this case, the secret RSA exponent is abused as
5138 an unpredictable seed -- if it is not unpredictable, there
5139 is no point in blinding anyway). Make RSA blinding thread-safe
5140 by remembering the creator's thread ID in rsa->blinding and
5141 having all other threads use local one-time blinding factors
5142 (this requires more computation than sharing rsa->blinding, but
5143 avoids excessive locking; and if an RSA object is not shared
5144 between threads, blinding will still be very fast).
5147 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5149 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5150 via timing by performing a MAC computation even if incorrrect
5151 block cipher padding has been found. This is a countermeasure
5152 against active attacks where the attacker has to distinguish
5153 between bad padding and a MAC verification error. (CVE-2003-0078)
5155 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5156 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5157 Martin Vuagnoux (EPFL, Ilion)]
5159 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5161 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5162 memory from it's contents. This is done with a counter that will
5163 place alternating values in each byte. This can be used to solve
5164 two issues: 1) the removal of calls to memset() by highly optimizing
5165 compilers, and 2) cleansing with other values than 0, since those can
5166 be read through on certain media, for example a swap space on disk.
5169 *) Bugfix: client side session caching did not work with external caching,
5170 because the session->cipher setting was not restored when reloading
5171 from the external cache. This problem was masked, when
5172 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5173 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5176 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5177 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5178 [Zeev Lieber <zeev-l@yahoo.com>]
5180 *) Undo an undocumented change introduced in 0.9.6e which caused
5181 repeated calls to OpenSSL_add_all_ciphers() and
5182 OpenSSL_add_all_digests() to be ignored, even after calling
5186 *) Change the default configuration reader to deal with last line not
5187 being properly terminated.
5190 *) Change X509_NAME_cmp() so it applies the special rules on handling
5191 DN values that are of type PrintableString, as well as RDNs of type
5192 emailAddress where the value has the type ia5String.
5193 [stefank@valicert.com via Richard Levitte]
5195 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5196 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5197 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5198 the bitwise-OR of the two for use by the majority of applications
5199 wanting this behaviour, and update the docs. The documented
5200 behaviour and actual behaviour were inconsistent and had been
5201 changing anyway, so this is more a bug-fix than a behavioural
5203 [Geoff Thorpe, diagnosed by Nadav Har'El]
5205 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5206 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5209 *) Fix initialization code race conditions in
5210 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5211 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5212 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5213 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5214 ssl2_get_cipher_by_char(),
5215 ssl3_get_cipher_by_char().
5216 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5218 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5219 the cached sessions are flushed, as the remove_cb() might use ex_data
5220 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5221 (see [openssl.org #212]).
5222 [Geoff Thorpe, Lutz Jaenicke]
5224 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5225 length, instead of the encoding length to d2i_ASN1_OBJECT.
5228 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5230 *) [In 0.9.6g-engine release:]
5231 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5232 [Lynn Gazis <lgazis@rainbow.com>]
5234 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5236 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5237 and get fix the header length calculation.
5238 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5239 Alon Kantor <alonk@checkpoint.com> (and others),
5242 *) Use proper error handling instead of 'assertions' in buffer
5243 overflow checks added in 0.9.6e. This prevents DoS (the
5244 assertions could call abort()).
5245 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5247 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5249 *) Add various sanity checks to asn1_get_length() to reject
5250 the ASN1 length bytes if they exceed sizeof(long), will appear
5251 negative or the content length exceeds the length of the
5253 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5255 *) Fix cipher selection routines: ciphers without encryption had no flags
5256 for the cipher strength set and where therefore not handled correctly
5257 by the selection routines (PR #130).
5260 *) Fix EVP_dsa_sha macro.
5264 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5265 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5266 that was added in OpenSSL 0.9.6d.
5268 As the countermeasure turned out to be incompatible with some
5269 broken SSL implementations, the new option is part of SSL_OP_ALL.
5270 SSL_OP_ALL is usually employed when compatibility with weird SSL
5271 implementations is desired (e.g. '-bugs' option to 's_client' and
5272 's_server'), so the new option is automatically set in many
5276 *) Changes in security patch:
5278 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5279 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5280 Air Force Materiel Command, USAF, under agreement number
5283 *) Add various sanity checks to asn1_get_length() to reject
5284 the ASN1 length bytes if they exceed sizeof(long), will appear
5285 negative or the content length exceeds the length of the
5286 supplied buffer. (CVE-2002-0659)
5287 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5289 *) Assertions for various potential buffer overflows, not known to
5291 [Ben Laurie (CHATS)]
5293 *) Various temporary buffers to hold ASCII versions of integers were
5294 too small for 64 bit platforms. (CVE-2002-0655)
5295 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5297 *) Remote buffer overflow in SSL3 protocol - an attacker could
5298 supply an oversized session ID to a client. (CVE-2002-0656)
5299 [Ben Laurie (CHATS)]
5301 *) Remote buffer overflow in SSL2 protocol - an attacker could
5302 supply an oversized client master key. (CVE-2002-0656)
5303 [Ben Laurie (CHATS)]
5305 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5307 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5308 encoded as NULL) with id-dsa-with-sha1.
5309 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5311 *) Check various X509_...() return values in apps/req.c.
5312 [Nils Larsch <nla@trustcenter.de>]
5314 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5315 an end-of-file condition would erronously be flagged, when the CRLF
5316 was just at the end of a processed block. The bug was discovered when
5317 processing data through a buffering memory BIO handing the data to a
5318 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5319 <ptsekov@syntrex.com> and Nedelcho Stanev.
5322 *) Implement a countermeasure against a vulnerability recently found
5323 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5324 before application data chunks to avoid the use of known IVs
5325 with data potentially chosen by the attacker.
5328 *) Fix length checks in ssl3_get_client_hello().
5331 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5332 to prevent ssl3_read_internal() from incorrectly assuming that
5333 ssl3_read_bytes() found application data while handshake
5334 processing was enabled when in fact s->s3->in_read_app_data was
5335 merely automatically cleared during the initial handshake.
5336 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5338 *) Fix object definitions for Private and Enterprise: they were not
5339 recognized in their shortname (=lowercase) representation. Extend
5340 obj_dat.pl to issue an error when using undefined keywords instead
5341 of silently ignoring the problem (Svenning Sorensen
5342 <sss@sss.dnsalias.net>).
5345 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5346 generators, i.e. generators other than 2 and 5. (Previously, the
5347 code did not properly initialise the 'add' and 'rem' values to
5348 BN_generate_prime().)
5350 In the new general case, we do not insist that 'generator' is
5351 actually a primitive root: This requirement is rather pointless;
5352 a generator of the order-q subgroup is just as good, if not
5356 *) Map new X509 verification errors to alerts. Discovered and submitted by
5357 Tom Wu <tom@arcot.com>.
5360 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5361 returning non-zero before the data has been completely received
5362 when using non-blocking I/O.
5363 [Bodo Moeller; problem pointed out by John Hughes]
5365 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5366 [Ben Laurie, Lutz Jaenicke]
5368 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5369 Yoram Zahavi <YoramZ@gilian.com>).
5372 *) Add information about CygWin 1.3 and on, and preserve proper
5373 configuration for the versions before that.
5374 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5376 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5377 check whether we deal with a copy of a session and do not delete from
5378 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5379 <izhar@checkpoint.com>.
5382 *) Do not store session data into the internal session cache, if it
5383 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5384 flag is set). Proposed by Aslam <aslam@funk.com>.
5387 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5391 *) [In 0.9.6d-engine release:]
5392 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5393 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5395 *) Add the configuration target linux-s390x.
5396 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5398 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5399 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5400 variable as an indication that a ClientHello message has been
5401 received. As the flag value will be lost between multiple
5402 invocations of ssl3_accept when using non-blocking I/O, the
5403 function may not be aware that a handshake has actually taken
5404 place, thus preventing a new session from being added to the
5407 To avoid this problem, we now set s->new_session to 2 instead of
5408 using a local variable.
5409 [Lutz Jaenicke, Bodo Moeller]
5411 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5412 if the SSL_R_LENGTH_MISMATCH error is detected.
5413 [Geoff Thorpe, Bodo Moeller]
5415 *) New 'shared_ldflag' column in Configure platform table.
5418 *) Fix EVP_CIPHER_mode macro.
5419 ["Dan S. Camper" <dan@bti.net>]
5421 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5422 type, we must throw them away by setting rr->length to 0.
5423 [D P Chang <dpc@qualys.com>]
5425 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5427 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5428 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5429 worked incorrectly for those cases where range = 10..._2 and
5430 3*range is two bits longer than range.)
5433 *) Only add signing time to PKCS7 structures if it is not already
5437 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5438 OBJ_ld_ce should be OBJ_id_ce.
5439 Also some ip-pda OIDs in crypto/objects/objects.txt were
5440 incorrect (cf. RFC 3039).
5441 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5443 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5444 returns early because it has nothing to do.
5445 [Andy Schneider <andy.schneider@bjss.co.uk>]
5447 *) [In 0.9.6c-engine release:]
5448 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5449 [Andy Schneider <andy.schneider@bjss.co.uk>]
5451 *) [In 0.9.6c-engine release:]
5452 Add support for Cryptographic Appliance's keyserver technology.
5453 (Use engine 'keyclient')
5454 [Cryptographic Appliances and Geoff Thorpe]
5456 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5457 is called via tools/c89.sh because arguments have to be
5458 rearranged (all '-L' options must appear before the first object
5460 [Richard Shapiro <rshapiro@abinitio.com>]
5462 *) [In 0.9.6c-engine release:]
5463 Add support for Broadcom crypto accelerator cards, backported
5465 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5467 *) [In 0.9.6c-engine release:]
5468 Add support for SureWare crypto accelerator cards from
5469 Baltimore Technologies. (Use engine 'sureware')
5470 [Baltimore Technologies and Mark Cox]
5472 *) [In 0.9.6c-engine release:]
5473 Add support for crypto accelerator cards from Accelerated
5474 Encryption Processing, www.aep.ie. (Use engine 'aep')
5475 [AEP Inc. and Mark Cox]
5477 *) Add a configuration entry for gcc on UnixWare.
5478 [Gary Benson <gbenson@redhat.com>]
5480 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5481 messages are stored in a single piece (fixed-length part and
5482 variable-length part combined) and fix various bugs found on the way.
5485 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5486 instead. BIO_gethostbyname() does not know what timeouts are
5487 appropriate, so entries would stay in cache even when they have
5489 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5491 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5492 faced with a pathologically small ClientHello fragment that does
5493 not contain client_version: Instead of aborting with an error,
5494 simply choose the highest available protocol version (i.e.,
5495 TLS 1.0 unless it is disabled). In practice, ClientHello
5496 messages are never sent like this, but this change gives us
5497 strictly correct behaviour at least for TLS.
5500 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5501 never resets s->method to s->ctx->method when called from within
5502 one of the SSL handshake functions.
5503 [Bodo Moeller; problem pointed out by Niko Baric]
5505 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5506 (sent using the client's version number) if client_version is
5507 smaller than the protocol version in use. Also change
5508 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5509 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5510 the client will at least see that alert.
5513 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5517 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5518 client receives HelloRequest while in a handshake.
5519 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5521 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5522 should end in 'break', not 'goto end' which circuments various
5523 cleanups done in state SSL_ST_OK. But session related stuff
5524 must be disabled for SSL_ST_OK in the case that we just sent a
5527 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5528 before just sending a HelloRequest.
5529 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5531 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5532 reveal whether illegal block cipher padding was found or a MAC
5533 verification error occured. (Neither SSLerr() codes nor alerts
5534 are directly visible to potential attackers, but the information
5535 may leak via logfiles.)
5537 Similar changes are not required for the SSL 2.0 implementation
5538 because the number of padding bytes is sent in clear for SSL 2.0,
5539 and the extra bytes are just ignored. However ssl/s2_pkt.c
5540 failed to verify that the purported number of padding bytes is in
5544 *) Add OpenUNIX-8 support including shared libraries
5545 (Boyd Lynn Gerber <gerberb@zenez.com>).
5548 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5549 'wristwatch attack' using huge encoding parameters (cf.
5550 James H. Manger's CRYPTO 2001 paper). Note that the
5551 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5552 encoding parameters and hence was not vulnerable.
5555 *) BN_sqr() bug fix.
5556 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5558 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5559 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5560 followed by modular reduction.
5561 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5563 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5564 equivalent based on BN_pseudo_rand() instead of BN_rand().
5567 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5568 This function was broken, as the check for a new client hello message
5569 to handle SGC did not allow these large messages.
5570 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5573 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5576 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5577 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5580 *) Rework the configuration and shared library support for Tru64 Unix.
5581 The configuration part makes use of modern compiler features and
5582 still retains old compiler behavior for those that run older versions
5583 of the OS. The shared library support part includes a variant that
5584 uses the RPATH feature, and is available through the special
5585 configuration target "alpha-cc-rpath", which will never be selected
5587 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5589 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5590 with the same message size as in ssl3_get_certificate_request().
5591 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5592 messages might inadvertently be reject as too long.
5593 [Petr Lampa <lampa@fee.vutbr.cz>]
5595 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5598 *) Modified SSL library such that the verify_callback that has been set
5599 specificly for an SSL object with SSL_set_verify() is actually being
5600 used. Before the change, a verify_callback set with this function was
5601 ignored and the verify_callback() set in the SSL_CTX at the time of
5602 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5603 to allow the necessary settings.
5606 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5607 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5608 done automatically (in contradiction to the requirements of the C
5609 standard). This made problems when used from OpenSSH.
5612 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5613 dh->length and always used
5615 BN_rand_range(priv_key, dh->p).
5617 BN_rand_range() is not necessary for Diffie-Hellman, and this
5618 specific range makes Diffie-Hellman unnecessarily inefficient if
5619 dh->length (recommended exponent length) is much smaller than the
5620 length of dh->p. We could use BN_rand_range() if the order of
5621 the subgroup was stored in the DH structure, but we only have
5626 BN_rand(priv_key, l, ...)
5628 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5634 RSA_eay_public_encrypt
5635 RSA_eay_private_decrypt
5636 RSA_eay_private_encrypt (signing)
5637 RSA_eay_public_decrypt (signature verification)
5639 (default implementations for RSA_public_encrypt,
5640 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5641 always reject numbers >= n.
5644 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5645 to synchronize access to 'locking_thread'. This is necessary on
5646 systems where access to 'locking_thread' (an 'unsigned long'
5647 variable) is not atomic.
5650 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5651 *before* setting the 'crypto_lock_rand' flag. The previous code had
5652 a race condition if 0 is a valid thread ID.
5653 [Travis Vitek <vitek@roguewave.com>]
5655 *) Add support for shared libraries under Irix.
5656 [Albert Chin-A-Young <china@thewrittenword.com>]
5658 *) Add configuration option to build on Linux on both big-endian and
5660 [Ralf Baechle <ralf@uni-koblenz.de>]
5662 *) Add the possibility to create shared libraries on HP-UX.
5665 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5667 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5668 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5669 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5670 PRNG state recovery was possible based on the output of
5671 one PRNG request appropriately sized to gain knowledge on
5672 'md' followed by enough consecutive 1-byte PRNG requests
5673 to traverse all of 'state'.
5675 1. When updating 'md_local' (the current thread's copy of 'md')
5676 during PRNG output generation, hash all of the previous
5677 'md_local' value, not just the half used for PRNG output.
5679 2. Make the number of bytes from 'state' included into the hash
5680 independent from the number of PRNG bytes requested.
5682 The first measure alone would be sufficient to avoid
5683 Markku-Juhani's attack. (Actually it had never occurred
5684 to me that the half of 'md_local' used for chaining was the
5685 half from which PRNG output bytes were taken -- I had always
5686 assumed that the secret half would be used.) The second
5687 measure makes sure that additional data from 'state' is never
5688 mixed into 'md_local' in small portions; this heuristically
5689 further strengthens the PRNG.
5692 *) Fix crypto/bn/asm/mips3.s.
5695 *) When only the key is given to "enc", the IV is undefined. Print out
5696 an error message in this case.
5699 *) Handle special case when X509_NAME is empty in X509 printing routines.
5702 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5703 positive and less than q.
5706 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5707 used: it isn't thread safe and the add_lock_callback should handle
5709 [Paul Rose <Paul.Rose@bridge.com>]
5711 *) Verify that incoming data obeys the block size in
5712 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5716 [Ulf Möller, Bodo Möller]
5718 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5719 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5720 when fixing the server behaviour for backwards-compatible 'client
5721 hello' messages. (Note that the attack is impractical against
5722 SSL 3.0 and TLS 1.0 anyway because length and version checking
5723 means that the probability of guessing a valid ciphertext is
5724 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5727 Before 0.9.5, the countermeasure (hide the error by generating a
5728 random 'decryption result') did not work properly because
5729 ERR_clear_error() was missing, meaning that SSL_get_error() would
5730 detect the supposedly ignored error.
5732 Both problems are now fixed.
5735 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5736 (previously it was 1024).
5739 *) Fix for compatibility mode trust settings: ignore trust settings
5740 unless some valid trust or reject settings are present.
5743 *) Fix for blowfish EVP: its a variable length cipher.
5746 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5747 parameters in DSA public key structures and return an error in the
5748 DSA routines if parameters are absent.
5751 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5752 in the current directory if neither $RANDFILE nor $HOME was set.
5753 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5754 caused some confusion to Windows users who haven't defined $HOME.
5755 Thus RAND_file_name() is changed again: e_os.h can define a
5756 DEFAULT_HOME, which will be used if $HOME is not set.
5757 For Windows, we use "C:"; on other platforms, we still require
5758 environment variables.
5760 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5761 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5762 having multiple threads call RAND_poll() concurrently.
5765 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5766 combination of a flag and a thread ID variable.
5767 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5768 flag), *other* threads can enter ssleay_add_bytes without obeying
5769 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5770 that they do not hold after the first thread unsets add_do_not_lock).
5773 *) Change bctest again: '-x' expressions are not available in all
5777 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5779 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5780 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5782 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5783 the default extension for executables, if any. Also, make the perl
5784 scripts that use symlink() to test if it really exists and use "cp"
5785 if it doesn't. All this made OpenSSL compilable and installable in
5789 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5790 If SEQUENCE is length is indefinite just set c->slen to the total
5791 amount of data available.
5792 [Steve Henson, reported by shige@FreeBSD.org]
5793 [This change does not apply to 0.9.7.]
5795 *) Change bctest to avoid here-documents inside command substitution
5796 (workaround for FreeBSD /bin/sh bug).
5797 For compatibility with Ultrix, avoid shell functions (introduced
5798 in the bctest version that searches along $PATH).
5801 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5802 with des_encrypt() defined on some operating systems, like Solaris
5806 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5807 On the Importance of Eliminating Errors in Cryptographic
5808 Computations, J. Cryptology 14 (2001) 2, 101-119,
5809 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5812 *) MIPS assembler BIGNUM division bug fix.
5815 *) Disabled incorrect Alpha assembler code.
5818 *) Fix PKCS#7 decode routines so they correctly update the length
5819 after reading an EOC for the EXPLICIT tag.
5821 [This change does not apply to 0.9.7.]
5823 *) Fix bug in PKCS#12 key generation routines. This was triggered
5824 if a 3DES key was generated with a 0 initial byte. Include
5825 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5826 (but broken) behaviour.
5829 *) Enhance bctest to search for a working bc along $PATH and print
5831 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5833 *) Fix memory leaks in err.c: free err_data string if necessary;
5834 don't write to the wrong index in ERR_set_error_data.
5837 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5841 *) Replace rdtsc with _emit statements for VC++ version 5.
5842 [Jeremy Cooper <jeremy@baymoo.org>]
5844 *) Make it possible to reuse SSLv2 sessions.
5847 *) In copy_email() check for >= 0 as a return value for
5848 X509_NAME_get_index_by_NID() since 0 is a valid index.
5849 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5851 *) Avoid coredump with unsupported or invalid public keys by checking if
5852 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5853 PKCS7_verify() fails with non detached data.
5856 *) Don't use getenv in library functions when run as setuid/setgid.
5857 New function OPENSSL_issetugid().
5860 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5861 due to incorrect handling of multi-threading:
5863 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5865 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5867 3. Count how many times MemCheck_off() has been called so that
5868 nested use can be treated correctly. This also avoids
5869 inband-signalling in the previous code (which relied on the
5870 assumption that thread ID 0 is impossible).
5873 *) Add "-rand" option also to s_client and s_server.
5876 *) Fix CPU detection on Irix 6.x.
5877 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5878 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5880 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5883 [This change does not apply to 0.9.7.]
5885 *) Use the cached encoding of an X509_NAME structure rather than
5886 copying it. This is apparently the reason for the libsafe "errors"
5887 but the code is actually correct.
5890 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5891 Bleichenbacher's DSA attack.
5892 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5893 to be set and top=0 forces the highest bit to be set; top=-1 is new
5894 and leaves the highest bit random.
5895 [Ulf Moeller, Bodo Moeller]
5897 *) In the NCONF_...-based implementations for CONF_... queries
5898 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5899 a temporary CONF structure with the data component set to NULL
5900 (which gives segmentation faults in lh_retrieve).
5901 Instead, use NULL for the CONF pointer in CONF_get_string and
5902 CONF_get_number (which may use environment variables) and directly
5903 return NULL from CONF_get_section.
5906 *) Fix potential buffer overrun for EBCDIC.
5909 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5910 keyUsage if basicConstraints absent for a CA.
5913 *) Make SMIME_write_PKCS7() write mail header values with a format that
5914 is more generally accepted (no spaces before the semicolon), since
5915 some programs can't parse those values properly otherwise. Also make
5916 sure BIO's that break lines after each write do not create invalid
5920 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5921 macros previously used would not encode an empty SEQUENCE OF
5922 and break the signature.
5924 [This change does not apply to 0.9.7.]
5926 *) Zero the premaster secret after deriving the master secret in
5930 *) Add some EVP_add_digest_alias registrations (as found in
5931 OpenSSL_add_all_digests()) to SSL_library_init()
5932 aka OpenSSL_add_ssl_algorithms(). This provides improved
5933 compatibility with peers using X.509 certificates
5934 with unconventional AlgorithmIdentifier OIDs.
5937 *) Fix for Irix with NO_ASM.
5938 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5940 *) ./config script fixes.
5941 [Ulf Moeller, Richard Levitte]
5943 *) Fix 'openssl passwd -1'.
5946 *) Change PKCS12_key_gen_asc() so it can cope with non null
5947 terminated strings whose length is passed in the passlen
5948 parameter, for example from PEM callbacks. This was done
5949 by adding an extra length parameter to asc2uni().
5950 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5952 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5953 call failed, free the DSA structure.
5956 *) Fix to uni2asc() to cope with zero length Unicode strings.
5957 These are present in some PKCS#12 files.
5960 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5961 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5962 when writing a 32767 byte record.
5963 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5965 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5966 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5968 (RSA objects have a reference count access to which is protected
5969 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5970 so they are meant to be shared between threads.)
5971 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5972 "Reddie, Steven" <Steven.Reddie@ca.com>]
5974 *) Fix a deadlock in CRYPTO_mem_leaks().
5977 *) Use better test patterns in bntest.
5980 *) rand_win.c fix for Borland C.
5983 *) BN_rshift bugfix for n == 0.
5986 *) Add a 'bctest' script that checks for some known 'bc' bugs
5987 so that 'make test' does not abort just because 'bc' is broken.
5990 *) Store verify_result within SSL_SESSION also for client side to
5991 avoid potential security hole. (Re-used sessions on the client side
5992 always resulted in verify_result==X509_V_OK, not using the original
5993 result of the server certificate verification.)
5996 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5997 SSL3_RT_APPLICATION_DATA, return 0.
5998 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6002 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6003 releases, have been re-implemented by renaming the previous
6004 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6005 and ssl3_read_internal, respectively, and adding 'peek' parameters
6006 to them. The new ssl[23]_{read,peek} functions are calls to
6007 ssl[23]_read_internal with the 'peek' flag set appropriately.
6008 A 'peek' parameter has also been added to ssl3_read_bytes, which
6009 does the actual work for ssl3_read_internal.
6012 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6013 the method-specific "init()" handler. Also clean up ex_data after
6014 calling the method-specific "finish()" handler. Previously, this was
6015 happening the other way round.
6018 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6019 The previous value, 12, was not always sufficient for BN_mod_exp().
6022 *) Make sure that shared libraries get the internal name engine with
6023 the full version number and not just 0. This should mark the
6024 shared libraries as not backward compatible. Of course, this should
6025 be changed again when we can guarantee backward binary compatibility.
6028 *) Fix typo in get_cert_by_subject() in by_dir.c
6029 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6031 *) Rework the system to generate shared libraries:
6033 - Make note of the expected extension for the shared libraries and
6034 if there is a need for symbolic links from for example libcrypto.so.0
6035 to libcrypto.so.0.9.7. There is extended info in Configure for
6038 - Make as few rebuilds of the shared libraries as possible.
6040 - Still avoid linking the OpenSSL programs with the shared libraries.
6042 - When installing, install the shared libraries separately from the
6046 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6048 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6049 and not in SSL_clear because the latter is also used by the
6050 accept/connect functions; previously, the settings made by
6051 SSL_set_read_ahead would be lost during the handshake.
6052 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6054 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6055 Previously, it would create entries for disableed algorithms no
6059 *) Added several new manual pages for SSL_* function.
6062 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6064 *) In ssl23_get_client_hello, generate an error message when faced
6065 with an initial SSL 3.0/TLS record that is too small to contain the
6066 first two bytes of the ClientHello message, i.e. client_version.
6067 (Note that this is a pathologic case that probably has never happened
6068 in real life.) The previous approach was to use the version number
6069 from the record header as a substitute; but our protocol choice
6070 should not depend on that one because it is not authenticated
6071 by the Finished messages.
6074 *) More robust randomness gathering functions for Windows.
6075 [Jeffrey Altman <jaltman@columbia.edu>]
6077 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6078 not set then we don't setup the error code for issuer check errors
6079 to avoid possibly overwriting other errors which the callback does
6080 handle. If an application does set the flag then we assume it knows
6081 what it is doing and can handle the new informational codes
6085 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6086 a general "ANY" type, as such it should be able to decode anything
6087 including tagged types. However it didn't check the class so it would
6088 wrongly interpret tagged types in the same way as their universal
6089 counterpart and unknown types were just rejected. Changed so that the
6090 tagged and unknown types are handled in the same way as a SEQUENCE:
6091 that is the encoding is stored intact. There is also a new type
6092 "V_ASN1_OTHER" which is used when the class is not universal, in this
6093 case we have no idea what the actual type is so we just lump them all
6097 *) On VMS, stdout may very well lead to a file that is written to
6098 in a record-oriented fashion. That means that every write() will
6099 write a separate record, which will be read separately by the
6100 programs trying to read from it. This can be very confusing.
6102 The solution is to put a BIO filter in the way that will buffer
6103 text until a linefeed is reached, and then write everything a
6104 line at a time, so every record written will be an actual line,
6105 not chunks of lines and not (usually doesn't happen, but I've
6106 seen it once) several lines in one record. BIO_f_linebuffer() is
6109 Currently, it's a VMS-only method, because that's where it has
6110 been tested well enough.
6113 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6114 it can return incorrect results.
6115 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6116 but it was in 0.9.6-beta[12].)
6119 *) Disable the check for content being present when verifying detached
6120 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6121 include zero length content when signing messages.
6124 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6125 BIO_ctrl (for BIO pairs).
6128 *) Add DSO method for VMS.
6131 *) Bug fix: Montgomery multiplication could produce results with the
6135 *) Add RPM specification openssl.spec and modify it to build three
6136 packages. The default package contains applications, application
6137 documentation and run-time libraries. The devel package contains
6138 include files, static libraries and function documentation. The
6139 doc package contains the contents of the doc directory. The original
6140 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6143 *) Add a large number of documentation files for many SSL routines.
6144 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6146 *) Add a configuration entry for Sony News 4.
6147 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6149 *) Don't set the two most significant bits to one when generating a
6150 random number < q in the DSA library.
6153 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6154 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6155 the underlying transport is blocking) if a handshake took place.
6156 (The default behaviour is needed by applications such as s_client
6157 and s_server that use select() to determine when to use SSL_read;
6158 but for applications that know in advance when to expect data, it
6159 just makes things more complicated.)
6162 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6166 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6167 work better on such systems.
6168 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6170 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6171 Update PKCS12_parse() so it copies the friendlyName and the
6172 keyid to the certificates aux info.
6175 *) Fix bug in PKCS7_verify() which caused an infinite loop
6176 if there was more than one signature.
6177 [Sven Uszpelkat <su@celocom.de>]
6179 *) Major change in util/mkdef.pl to include extra information
6180 about each symbol, as well as presentig variables as well
6181 as functions. This change means that there's n more need
6182 to rebuild the .num files when some algorithms are excluded.
6185 *) Allow the verify time to be set by an application,
6186 rather than always using the current time.
6189 *) Phase 2 verify code reorganisation. The certificate
6190 verify code now looks up an issuer certificate by a
6191 number of criteria: subject name, authority key id
6192 and key usage. It also verifies self signed certificates
6193 by the same criteria. The main comparison function is
6194 X509_check_issued() which performs these checks.
6196 Lot of changes were necessary in order to support this
6197 without completely rewriting the lookup code.
6199 Authority and subject key identifier are now cached.
6201 The LHASH 'certs' is X509_STORE has now been replaced
6202 by a STACK_OF(X509_OBJECT). This is mainly because an
6203 LHASH can't store or retrieve multiple objects with
6204 the same hash value.
6206 As a result various functions (which were all internal
6207 use only) have changed to handle the new X509_STORE
6208 structure. This will break anything that messed round
6209 with X509_STORE internally.
6211 The functions X509_STORE_add_cert() now checks for an
6212 exact match, rather than just subject name.
6214 The X509_STORE API doesn't directly support the retrieval
6215 of multiple certificates matching a given criteria, however
6216 this can be worked round by performing a lookup first
6217 (which will fill the cache with candidate certificates)
6218 and then examining the cache for matches. This is probably
6219 the best we can do without throwing out X509_LOOKUP
6220 entirely (maybe later...).
6222 The X509_VERIFY_CTX structure has been enhanced considerably.
6224 All certificate lookup operations now go via a get_issuer()
6225 callback. Although this currently uses an X509_STORE it
6226 can be replaced by custom lookups. This is a simple way
6227 to bypass the X509_STORE hackery necessary to make this
6228 work and makes it possible to use more efficient techniques
6229 in future. A very simple version which uses a simple
6230 STACK for its trusted certificate store is also provided
6231 using X509_STORE_CTX_trusted_stack().
6233 The verify_cb() and verify() callbacks now have equivalents
6234 in the X509_STORE_CTX structure.
6236 X509_STORE_CTX also has a 'flags' field which can be used
6237 to customise the verify behaviour.
6240 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6241 excludes S/MIME capabilities.
6244 *) When a certificate request is read in keep a copy of the
6245 original encoding of the signed data and use it when outputing
6246 again. Signatures then use the original encoding rather than
6247 a decoded, encoded version which may cause problems if the
6248 request is improperly encoded.
6251 *) For consistency with other BIO_puts implementations, call
6252 buffer_write(b, ...) directly in buffer_puts instead of calling
6255 In BIO_puts, increment b->num_write as in BIO_write.
6256 [Peter.Sylvester@EdelWeb.fr]
6258 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6259 BN_zero, we may not return a BIGNUM with an array consisting of
6263 *) Avoid calling abort() from within the library when problems are
6264 detected, except if preprocessor symbols have been defined
6265 (such as REF_CHECK, BN_DEBUG etc.).
6268 *) New openssl application 'rsautl'. This utility can be
6269 used for low level RSA operations. DER public key
6270 BIO/fp routines also added.
6273 *) New Configure entry and patches for compiling on QNX 4.
6274 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6276 *) A demo state-machine implementation was sponsored by
6277 Nuron (http://www.nuron.com/) and is now available in
6278 demos/state_machine.
6281 *) New options added to the 'dgst' utility for signature
6282 generation and verification.
6285 *) Unrecognized PKCS#7 content types are now handled via a
6286 catch all ASN1_TYPE structure. This allows unsupported
6287 types to be stored as a "blob" and an application can
6288 encode and decode it manually.
6291 *) Fix various signed/unsigned issues to make a_strex.c
6293 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6295 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6296 length if passed a buffer. ASN1_INTEGER_to_BN failed
6297 if passed a NULL BN and its argument was negative.
6298 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6300 *) Modification to PKCS#7 encoding routines to output definite
6301 length encoding. Since currently the whole structures are in
6302 memory there's not real point in using indefinite length
6303 constructed encoding. However if OpenSSL is compiled with
6304 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6307 *) Added BIO_vprintf() and BIO_vsnprintf().
6310 *) Added more prefixes to parse for in the the strings written
6311 through a logging bio, to cover all the levels that are available
6312 through syslog. The prefixes are now:
6314 PANIC, EMERG, EMR => LOG_EMERG
6315 ALERT, ALR => LOG_ALERT
6316 CRIT, CRI => LOG_CRIT
6317 ERROR, ERR => LOG_ERR
6318 WARNING, WARN, WAR => LOG_WARNING
6319 NOTICE, NOTE, NOT => LOG_NOTICE
6320 INFO, INF => LOG_INFO
6321 DEBUG, DBG => LOG_DEBUG
6323 and as before, if none of those prefixes are present at the
6324 beginning of the string, LOG_ERR is chosen.
6326 On Win32, the LOG_* levels are mapped according to this:
6328 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6329 LOG_WARNING => EVENTLOG_WARNING_TYPE
6330 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6334 *) Made it possible to reconfigure with just the configuration
6335 argument "reconf" or "reconfigure". The command line arguments
6336 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6337 and are retrieved from there when reconfiguring.
6341 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6343 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6346 *) The obj_dat.pl script was messing up the sorting of object
6347 names. The reason was that it compared the quoted version
6348 of strings as a result "OCSP" > "OCSP Signing" because
6349 " > SPACE. Changed script to store unquoted versions of
6350 names and add quotes on output. It was also omitting some
6351 names from the lookup table if they were given a default
6352 value (that is if SN is missing it is given the same
6353 value as LN and vice versa), these are now added on the
6354 grounds that if an object has a name we should be able to
6355 look it up. Finally added warning output when duplicate
6356 short or long names are found.
6359 *) Changes needed for Tandem NSK.
6360 [Scott Uroff <scott@xypro.com>]
6362 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6363 RSA_padding_check_SSLv23(), special padding was never detected
6364 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6365 version rollback attacks was not effective.
6367 In s23_clnt.c, don't use special rollback-attack detection padding
6368 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6369 client; similarly, in s23_srvr.c, don't do the rollback check if
6370 SSL 2.0 is the only protocol enabled in the server.
6373 *) Make it possible to get hexdumps of unprintable data with 'openssl
6374 asn1parse'. By implication, the functions ASN1_parse_dump() and
6375 BIO_dump_indent() are added.
6378 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6379 these print out strings and name structures based on various
6380 flags including RFC2253 support and proper handling of
6381 multibyte characters. Added options to the 'x509' utility
6382 to allow the various flags to be set.
6385 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6386 Also change the functions X509_cmp_current_time() and
6387 X509_gmtime_adj() work with an ASN1_TIME structure,
6388 this will enable certificates using GeneralizedTime in validity
6389 dates to be checked.
6392 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6393 negative public key encodings) on by default,
6394 NO_NEG_PUBKEY_BUG can be set to disable it.
6397 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6398 content octets. An i2c_ASN1_OBJECT is unnecessary because
6399 the encoding can be trivially obtained from the structure.
6402 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6403 not read locks (CRYPTO_r_[un]lock).
6406 *) A first attempt at creating official support for shared
6407 libraries through configuration. I've kept it so the
6408 default is static libraries only, and the OpenSSL programs
6409 are always statically linked for now, but there are
6410 preparations for dynamic linking in place.
6411 This has been tested on Linux and Tru64.
6414 *) Randomness polling function for Win9x, as described in:
6415 Peter Gutmann, Software Generation of Practically Strong
6419 *) Fix so PRNG is seeded in req if using an already existing
6423 *) New options to smime application. -inform and -outform
6424 allow alternative formats for the S/MIME message including
6425 PEM and DER. The -content option allows the content to be
6426 specified separately. This should allow things like Netscape
6427 form signing output easier to verify.
6430 *) Fix the ASN1 encoding of tags using the 'long form'.
6433 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6434 STRING types. These convert content octets to and from the
6435 underlying type. The actual tag and length octets are
6436 already assumed to have been read in and checked. These
6437 are needed because all other string types have virtually
6438 identical handling apart from the tag. By having versions
6439 of the ASN1 functions that just operate on content octets
6440 IMPLICIT tagging can be handled properly. It also allows
6441 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6442 and ASN1_INTEGER are identical apart from the tag.
6445 *) Change the handling of OID objects as follows:
6447 - New object identifiers are inserted in objects.txt, following
6448 the syntax given in objects.README.
6449 - objects.pl is used to process obj_mac.num and create a new
6451 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6454 This is currently kind of a hack, and the perl code in objects.pl
6455 isn't very elegant, but it works as I intended. The simplest way
6456 to check that it worked correctly is to look in obj_dat.h and
6457 check the array nid_objs and make sure the objects haven't moved
6458 around (this is important!). Additions are OK, as well as
6459 consistent name changes.
6462 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6465 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6466 The given file adds to whatever has already been seeded into the
6467 random pool through the RANDFILE configuration file option or
6468 environment variable, or the default random state file.
6471 *) mkstack.pl now sorts each macro group into lexical order.
6472 Previously the output order depended on the order the files
6473 appeared in the directory, resulting in needless rewriting
6477 *) Patches to make OpenSSL compile under Win32 again. Mostly
6478 work arounds for the VC++ problem that it treats func() as
6479 func(void). Also stripped out the parts of mkdef.pl that
6480 added extra typesafe functions: these no longer exist.
6483 *) Reorganisation of the stack code. The macros are now all
6484 collected in safestack.h . Each macro is defined in terms of
6485 a "stack macro" of the form SKM_<name>(type, a, b). The
6486 DEBUG_SAFESTACK is now handled in terms of function casts,
6487 this has the advantage of retaining type safety without the
6488 use of additional functions. If DEBUG_SAFESTACK is not defined
6489 then the non typesafe macros are used instead. Also modified the
6490 mkstack.pl script to handle the new form. Needs testing to see
6491 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6492 the default if no major problems. Similar behaviour for ASN1_SET_OF
6493 and PKCS12_STACK_OF.
6496 *) When some versions of IIS use the 'NET' form of private key the
6497 key derivation algorithm is different. Normally MD5(password) is
6498 used as a 128 bit RC4 key. In the modified case
6499 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6500 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6501 as the old Netscape_RSA functions except they have an additional
6502 'sgckey' parameter which uses the modified algorithm. Also added
6503 an -sgckey command line option to the rsa utility. Thanks to
6504 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6505 algorithm to openssl-dev.
6508 *) The evp_local.h macros were using 'c.##kname' which resulted in
6509 invalid expansion on some systems (SCO 5.0.5 for example).
6510 Corrected to 'c.kname'.
6511 [Phillip Porch <root@theporch.com>]
6513 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6514 a STACK of email addresses from a certificate or request, these look
6515 in the subject name and the subject alternative name extensions and
6516 omit any duplicate addresses.
6519 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6520 This makes DSA verification about 2 % faster.
6523 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6524 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6525 plus overhead for 1024 bit moduli).
6526 This makes exponentiations about 0.5 % faster for 1024 bit
6527 exponents (as measured by "openssl speed rsa2048").
6530 *) Rename memory handling macros to avoid conflicts with other
6532 Malloc => OPENSSL_malloc
6533 Malloc_locked => OPENSSL_malloc_locked
6534 Realloc => OPENSSL_realloc
6535 Free => OPENSSL_free
6538 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6539 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6542 *) CygWin32 support.
6543 [John Jarvie <jjarvie@newsguy.com>]
6545 *) The type-safe stack code has been rejigged. It is now only compiled
6546 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6547 by default all type-specific stack functions are "#define"d back to
6548 standard stack functions. This results in more streamlined output
6549 but retains the type-safety checking possibilities of the original
6553 *) The STACK code has been cleaned up, and certain type declarations
6554 that didn't make a lot of sense have been brought in line. This has
6555 also involved a cleanup of sorts in safestack.h to more correctly
6556 map type-safe stack functions onto their plain stack counterparts.
6557 This work has also resulted in a variety of "const"ifications of
6558 lots of the code, especially "_cmp" operations which should normally
6559 be prototyped with "const" parameters anyway.
6562 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6563 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6564 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6565 where all of 'md' is used each time the PRNG is used, but 'state'
6566 is used only indexed by a cyclic counter. As entropy may not be
6567 well distributed from the beginning, 'md' is important as a
6568 chaining variable. However, the output function chains only half
6569 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6570 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6571 in all of 'state' being rewritten, with the new values depending
6572 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6575 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6576 the handshake is continued after ssl_verify_cert_chain();
6577 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6578 can lead to 'unexplainable' connection aborts later.
6579 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6581 *) Major EVP API cipher revision.
6582 Add hooks for extra EVP features. This allows various cipher
6583 parameters to be set in the EVP interface. Support added for variable
6584 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6585 setting of RC2 and RC5 parameters.
6587 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6590 Remove lots of duplicated code from the EVP library. For example *every*
6591 cipher init() function handles the 'iv' in the same way according to the
6592 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6593 for CFB and OFB modes they zero ctx->num.
6595 New functionality allows removal of S/MIME code RC2 hack.
6597 Most of the routines have the same form and so can be declared in terms
6600 By shifting this to the top level EVP_CipherInit() it can be removed from
6601 all individual ciphers. If the cipher wants to handle IVs or keys
6602 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6605 Change lots of functions like EVP_EncryptUpdate() to now return a
6606 value: although software versions of the algorithms cannot fail
6607 any installed hardware versions can.
6610 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6611 this option is set, tolerate broken clients that send the negotiated
6612 protocol version number instead of the requested protocol version
6616 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6617 i.e. non-zero for export ciphersuites, zero otherwise.
6618 Previous versions had this flag inverted, inconsistent with
6619 rsa_tmp_cb (..._TMP_RSA_CB).
6620 [Bodo Moeller; problem reported by Amit Chopra]
6622 *) Add missing DSA library text string. Work around for some IIS
6623 key files with invalid SEQUENCE encoding.
6626 *) Add a document (doc/standards.txt) that list all kinds of standards
6627 and so on that are implemented in OpenSSL.
6630 *) Enhance c_rehash script. Old version would mishandle certificates
6631 with the same subject name hash and wouldn't handle CRLs at all.
6632 Added -fingerprint option to crl utility, to support new c_rehash
6636 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6639 *) Fix for SSL server purpose checking. Server checking was
6640 rejecting certificates which had extended key usage present
6641 but no ssl client purpose.
6642 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6644 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6645 is a little unclear about how a blank password is handled.
6646 Since the password in encoded as a BMPString with terminating
6647 double NULL a zero length password would end up as just the
6648 double NULL. However no password at all is different and is
6649 handled differently in the PKCS#12 key generation code. NS
6650 treats a blank password as zero length. MSIE treats it as no
6651 password on export: but it will try both on import. We now do
6652 the same: PKCS12_parse() tries zero length and no password if
6653 the password is set to "" or NULL (NULL is now a valid password:
6654 it wasn't before) as does the pkcs12 application.
6657 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6658 perror when PEM_read_bio_X509_REQ fails, the error message must
6659 be obtained from the error queue.
6662 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6663 it in ERR_remove_state if appropriate, and change ERR_get_state
6664 accordingly to avoid race conditions (this is necessary because
6665 thread_hash is no longer constant once set).
6668 *) Bugfix for linux-elf makefile.one.
6671 *) RSA_get_default_method() will now cause a default
6672 RSA_METHOD to be chosen if one doesn't exist already.
6673 Previously this was only set during a call to RSA_new()
6674 or RSA_new_method(NULL) meaning it was possible for
6675 RSA_get_default_method() to return NULL.
6678 *) Added native name translation to the existing DSO code
6679 that will convert (if the flag to do so is set) filenames
6680 that are sufficiently small and have no path information
6681 into a canonical native form. Eg. "blah" converted to
6682 "libblah.so" or "blah.dll" etc.
6685 *) New function ERR_error_string_n(e, buf, len) which is like
6686 ERR_error_string(e, buf), but writes at most 'len' bytes
6687 including the 0 terminator. For ERR_error_string_n, 'buf'
6689 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6691 *) CONF library reworked to become more general. A new CONF
6692 configuration file reader "class" is implemented as well as a
6693 new functions (NCONF_*, for "New CONF") to handle it. The now
6694 old CONF_* functions are still there, but are reimplemented to
6695 work in terms of the new functions. Also, a set of functions
6696 to handle the internal storage of the configuration data is
6697 provided to make it easier to write new configuration file
6698 reader "classes" (I can definitely see something reading a
6699 configuration file in XML format, for example), called _CONF_*,
6700 or "the configuration storage API"...
6702 The new configuration file reading functions are:
6704 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6705 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6707 NCONF_default, NCONF_WIN32
6709 NCONF_dump_fp, NCONF_dump_bio
6711 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6712 NCONF_new creates a new CONF object. This works in the same way
6713 as other interfaces in OpenSSL, like the BIO interface.
6714 NCONF_dump_* dump the internal storage of the configuration file,
6715 which is useful for debugging. All other functions take the same
6716 arguments as the old CONF_* functions wth the exception of the
6717 first that must be a `CONF *' instead of a `LHASH *'.
6719 To make it easer to use the new classes with the old CONF_* functions,
6720 the function CONF_set_default_method is provided.
6723 *) Add '-tls1' option to 'openssl ciphers', which was already
6724 mentioned in the documentation but had not been implemented.
6725 (This option is not yet really useful because even the additional
6726 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6729 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6730 OpenSSL-based applications) load shared libraries and bind to
6731 them in a portable way.
6732 [Geoff Thorpe, with contributions from Richard Levitte]
6734 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6736 *) Make sure _lrotl and _lrotr are only used with MSVC.
6738 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6739 (the default implementation of RAND_status).
6741 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6742 to '-clrext' (= clear extensions), as intended and documented.
6743 [Bodo Moeller; inconsistency pointed out by Michael Attili
6746 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6747 was larger than the MD block size.
6748 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6750 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6751 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6752 using the passed key: if the passed key was a private key the result
6753 of X509_print(), for example, would be to print out all the private key
6757 *) des_quad_cksum() byte order bug fix.
6758 [Ulf Möller, using the problem description in krb4-0.9.7, where
6759 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6761 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6763 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6765 *) For easily testing in shell scripts whether some command
6766 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6767 returns with exit code 0 iff no command of the given name is available.
6768 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6769 the output goes to stdout and nothing is printed to stderr.
6770 Additional arguments are always ignored.
6772 Since for each cipher there is a command of the same name,
6773 the 'no-cipher' compilation switches can be tested this way.
6775 ('openssl no-XXX' is not able to detect pseudo-commands such
6776 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6779 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6782 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6783 is set; it will be thrown away anyway because each handshake creates
6785 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6786 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6787 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6788 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6791 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6792 'Q' and 'R' lose their special meanings (quit/renegotiate).
6793 This is part of what -quiet does; unlike -quiet, -ign_eof
6794 does not suppress any output.
6797 *) Add compatibility options to the purpose and trust code. The
6798 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6799 accepts a certificate or CA, this was the previous behaviour,
6800 with all the associated security issues.
6802 X509_TRUST_COMPAT is the old trust behaviour: only and
6803 automatically trust self signed roots in certificate store. A
6804 new trust setting X509_TRUST_DEFAULT is used to specify that
6805 a purpose has no associated trust setting and it should instead
6806 use the value in the default purpose.
6809 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6810 and fix a memory leak.
6813 *) In util/mkerr.pl (which implements 'make errors'), preserve
6814 reason strings from the previous version of the .c file, as
6815 the default to have only downcase letters (and digits) in
6816 automatically generated reasons codes is not always appropriate.
6819 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6820 using strerror. Previously, ERR_reason_error_string() returned
6821 library names as reason strings for SYSerr; but SYSerr is a special
6822 case where small numbers are errno values, not library numbers.
6825 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6826 converts DSA parameters into DH parameters. (When creating parameters,
6827 DSA_generate_parameters is used.)
6830 *) Include 'length' (recommended exponent length) in C code generated
6831 by 'openssl dhparam -C'.
6834 *) The second argument to set_label in perlasm was already being used
6835 so couldn't be used as a "file scope" flag. Moved to third argument
6839 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6840 instead of RAND_bytes for encryption IVs and salts.
6843 *) Include RAND_status() into RAND_METHOD instead of implementing
6844 it only for md_rand.c Otherwise replacing the PRNG by calling
6845 RAND_set_rand_method would be impossible.
6848 *) Don't let DSA_generate_key() enter an infinite loop if the random
6849 number generation fails.
6852 *) New 'rand' application for creating pseudo-random output.
6855 *) Added configuration support for Linux/IA64
6856 [Rolf Haberrecker <rolf@suse.de>]
6858 *) Assembler module support for Mingw32.
6861 *) Shared library support for HPUX (in shlib/).
6862 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6864 *) Shared library support for Solaris gcc.
6865 [Lutz Behnke <behnke@trustcenter.de>]
6867 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6869 *) PKCS7_encrypt() was adding text MIME headers twice because they
6870 were added manually and by SMIME_crlf_copy().
6873 *) In bntest.c don't call BN_rand with zero bits argument.
6874 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6876 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6877 case was implemented. This caused BN_div_recp() to fail occasionally.
6880 *) Add an optional second argument to the set_label() in the perl
6881 assembly language builder. If this argument exists and is set
6882 to 1 it signals that the assembler should use a symbol whose
6883 scope is the entire file, not just the current function. This
6884 is needed with MASM which uses the format label:: for this scope.
6885 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6887 *) Change the ASN1 types so they are typedefs by default. Before
6888 almost all types were #define'd to ASN1_STRING which was causing
6889 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6893 *) Change names of new functions to the new get1/get0 naming
6894 convention: After 'get1', the caller owns a reference count
6895 and has to call ..._free; 'get0' returns a pointer to some
6896 data structure without incrementing reference counters.
6897 (Some of the existing 'get' functions increment a reference
6898 counter, some don't.)
6899 Similarly, 'set1' and 'add1' functions increase reference
6900 counters or duplicate objects.
6903 *) Allow for the possibility of temp RSA key generation failure:
6904 the code used to assume it always worked and crashed on failure.
6907 *) Fix potential buffer overrun problem in BIO_printf().
6908 [Ulf Möller, using public domain code by Patrick Powell; problem
6909 pointed out by David Sacerdote <das33@cornell.edu>]
6911 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6912 RAND_egd() and RAND_status(). In the command line application,
6913 the EGD socket can be specified like a seed file using RANDFILE
6917 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6918 Some CAs (e.g. Verisign) distribute certificates in this form.
6921 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6922 list to exclude them. This means that no special compilation option
6923 is needed to use anonymous DH: it just needs to be included in the
6927 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6928 EVP_MD_type. The old functionality is available in a new macro called
6929 EVP_MD_md(). Change code that uses it and update docs.
6932 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6933 where the 'void *' argument is replaced by a function pointer argument.
6934 Previously 'void *' was abused to point to functions, which works on
6935 many platforms, but is not correct. As these functions are usually
6936 called by macros defined in OpenSSL header files, most source code
6937 should work without changes.
6940 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6941 sections with information on -D... compiler switches used for
6942 compiling the library so that applications can see them. To enable
6943 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6944 must be defined. E.g.,
6945 #define OPENSSL_ALGORITHM_DEFINES
6946 #include <openssl/opensslconf.h>
6947 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6948 [Richard Levitte, Ulf and Bodo Möller]
6950 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6954 *) Change the 'other' type in certificate aux info to a STACK_OF
6955 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6956 the required ASN1 format: arbitrary types determined by an OID.
6959 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6960 argument to 'req'. This is not because the function is newer or
6961 better than others it just uses the work 'NEW' in the certificate
6962 request header lines. Some software needs this.
6965 *) Reorganise password command line arguments: now passwords can be
6966 obtained from various sources. Delete the PEM_cb function and make
6967 it the default behaviour: i.e. if the callback is NULL and the
6968 usrdata argument is not NULL interpret it as a null terminated pass
6969 phrase. If usrdata and the callback are NULL then the pass phrase
6970 is prompted for as usual.
6973 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6974 the support is automatically enabled. The resulting binaries will
6975 autodetect the card and use it if present.
6976 [Ben Laurie and Compaq Inc.]
6978 *) Work around for Netscape hang bug. This sends certificate request
6979 and server done in one record. Since this is perfectly legal in the
6980 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6981 the bugs/SSLv3 entry for more info.
6984 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6987 *) Add -rand argument to smime and pkcs12 applications and read/write
6991 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6994 *) Add command line password options to the remaining applications.
6997 *) Bug fix for BN_div_recp() for numerators with an even number of
7001 *) More tests in bntest.c, and changed test_bn output.
7004 *) ./config recognizes MacOS X now.
7007 *) Bug fix for BN_div() when the first words of num and divsor are
7008 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7011 *) Add support for various broken PKCS#8 formats, and command line
7012 options to produce them.
7015 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7016 get temporary BIGNUMs from a BN_CTX.
7019 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7023 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7024 include a #define from the old name to the new. The original intent
7025 was that statically linked binaries could for example just call
7026 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7027 link with digests. This never worked becayse SSLeay_add_all_digests()
7028 and SSLeay_add_all_ciphers() were in the same source file so calling
7029 one would link with the other. They are now in separate source files.
7032 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7035 *) Use a less unusual form of the Miller-Rabin primality test (it used
7036 a binary algorithm for exponentiation integrated into the Miller-Rabin
7037 loop, our standard modexp algorithms are faster).
7040 *) Support for the EBCDIC character set completed.
7041 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7043 *) Source code cleanups: use const where appropriate, eliminate casts,
7044 use void * instead of char * in lhash.
7047 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7048 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7049 this the server could overwrite ephemeral keys that the client
7053 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7054 using 50 iterations of the Rabin-Miller test.
7056 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7057 iterations of the Rabin-Miller test as required by the appendix
7058 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7059 As BN_is_prime_fasttest includes trial division, DSA parameter
7060 generation becomes much faster.
7062 This implies a change for the callback functions in DSA_is_prime
7063 and DSA_generate_parameters: The callback function is called once
7064 for each positive witness in the Rabin-Miller test, not just
7065 occasionally in the inner loop; and the parameters to the
7066 callback function now provide an iteration count for the outer
7067 loop rather than for the current invocation of the inner loop.
7068 DSA_generate_parameters additionally can call the callback
7069 function with an 'iteration count' of -1, meaning that a
7070 candidate has passed the trial division test (when q is generated
7071 from an application-provided seed, trial division is skipped).
7074 *) New function BN_is_prime_fasttest that optionally does trial
7075 division before starting the Rabin-Miller test and has
7076 an additional BN_CTX * argument (whereas BN_is_prime always
7077 has to allocate at least one BN_CTX).
7078 'callback(1, -1, cb_arg)' is called when a number has passed the
7079 trial division stage.
7082 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7086 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7089 *) New function BN_pseudo_rand().
7092 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7093 bignum version of BN_from_montgomery() with the working code from
7094 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7098 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7099 made it impossible to use the same SSL_SESSION data structure in
7100 SSL2 clients in multiple threads.
7103 *) The return value of RAND_load_file() no longer counts bytes obtained
7104 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7105 to seed the PRNG (previously an explicit byte count was required).
7106 [Ulf Möller, Bodo Möller]
7108 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7109 used (char *) instead of (void *) and had casts all over the place.
7112 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7115 *) Retain source code compatibility for BN_prime_checks macro:
7116 BN_is_prime(..., BN_prime_checks, ...) now uses
7117 BN_prime_checks_for_size to determine the appropriate number of
7118 Rabin-Miller iterations.
7121 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7122 DH_CHECK_P_NOT_SAFE_PRIME.
7123 (Check if this is true? OpenPGP calls them "strong".)
7126 *) Merge the functionality of "dh" and "gendh" programs into a new program
7127 "dhparam". The old programs are retained for now but will handle DH keys
7128 (instead of parameters) in future.
7131 *) Make the ciphers, s_server and s_client programs check the return values
7132 when a new cipher list is set.
7135 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7136 ciphers. Before when the 56bit ciphers were enabled the sorting was
7139 The syntax for the cipher sorting has been extended to support sorting by
7140 cipher-strength (using the strength_bits hard coded in the tables).
7141 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7143 Fix a bug in the cipher-command parser: when supplying a cipher command
7144 string with an "undefined" symbol (neither command nor alphanumeric
7145 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7146 an error is flagged.
7148 Due to the strength-sorting extension, the code of the
7149 ssl_create_cipher_list() function was completely rearranged. I hope that
7150 the readability was also increased :-)
7151 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7153 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7154 for the first serial number and places 2 in the serial number file. This
7155 avoids problems when the root CA is created with serial number zero and
7156 the first user certificate has the same issuer name and serial number
7160 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7161 the new code. Add documentation for this stuff.
7164 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7165 X509_*() to X509at_*() on the grounds that they don't handle X509
7166 structures and behave in an analagous way to the X509v3 functions:
7167 they shouldn't be called directly but wrapper functions should be used
7170 So we also now have some wrapper functions that call the X509at functions
7171 when passed certificate requests. (TO DO: similar things can be done with
7172 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7173 things. Some of these need some d2i or i2d and print functionality
7174 because they handle more complex structures.)
7177 *) Add missing #ifndefs that caused missing symbols when building libssl
7178 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7179 NO_RSA in ssl/s2*.c.
7180 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7182 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7183 has a return value which indicates the quality of the random data
7184 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7185 error queue. New function RAND_pseudo_bytes() generates output that is
7186 guaranteed to be unique but not unpredictable. RAND_add is like
7187 RAND_seed, but takes an extra argument for an entropy estimate
7188 (RAND_seed always assumes full entropy).
7191 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7192 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7193 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7194 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7195 false-positive rate of at most 2^-80 for random input.
7198 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7201 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7202 in the 0.9.5 release), this returns the chain
7203 from an X509_CTX structure with a dup of the stack and all
7204 the X509 reference counts upped: so the stack will exist
7205 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7208 Also make SSL_SESSION_print() print out the verify return
7212 *) Add manpage for the pkcs12 command. Also change the default
7213 behaviour so MAC iteration counts are used unless the new
7214 -nomaciter option is used. This improves file security and
7215 only older versions of MSIE (4.0 for example) need it.
7218 *) Honor the no-xxx Configure options when creating .DEF files.
7221 *) Add PKCS#10 attributes to field table: challengePassword,
7222 unstructuredName and unstructuredAddress. These are taken from
7223 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7224 international characters are used.
7226 More changes to X509_ATTRIBUTE code: allow the setting of types
7227 based on strings. Remove the 'loc' parameter when adding
7228 attributes because these will be a SET OF encoding which is sorted
7232 *) Initial changes to the 'req' utility to allow request generation
7233 automation. This will allow an application to just generate a template
7234 file containing all the field values and have req construct the
7237 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7238 used all over the place including certificate requests and PKCS#7
7239 structures. They are currently handled manually where necessary with
7240 some primitive wrappers for PKCS#7. The new functions behave in a
7241 manner analogous to the X509 extension functions: they allow
7242 attributes to be looked up by NID and added.
7244 Later something similar to the X509V3 code would be desirable to
7245 automatically handle the encoding, decoding and printing of the
7246 more complex types. The string types like challengePassword can
7247 be handled by the string table functions.
7249 Also modified the multi byte string table handling. Now there is
7250 a 'global mask' which masks out certain types. The table itself
7251 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7252 is useful when for example there is only one permissible type
7253 (as in countryName) and using the mask might result in no valid
7257 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7258 SSL_get_peer_finished to allow applications to obtain the latest
7259 Finished messages sent to the peer or expected from the peer,
7260 respectively. (SSL_get_peer_finished is usually the Finished message
7261 actually received from the peer, otherwise the protocol will be aborted.)
7263 As the Finished message are message digests of the complete handshake
7264 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7265 be used for external authentication procedures when the authentication
7266 provided by SSL/TLS is not desired or is not enough.
7269 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7270 the host supports BWX extension and if Compaq C is present on the
7271 $PATH. Just exploiting of the BWX extension results in 20-30%
7272 performance kick for some algorithms, e.g. DES and RC4 to mention
7273 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7277 *) Add support for MS "fast SGC". This is arguably a violation of the
7278 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7279 weak crypto and after checking the certificate is SGC a second one
7280 with strong crypto. MS SGC stops the first handshake after receiving
7281 the server certificate message and sends a second client hello. Since
7282 a server will typically do all the time consuming operations before
7283 expecting any further messages from the client (server key exchange
7284 is the most expensive) there is little difference between the two.
7286 To get OpenSSL to support MS SGC we have to permit a second client
7287 hello message after we have sent server done. In addition we have to
7288 reset the MAC if we do get this second client hello.
7291 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7292 if a DER encoded private key is RSA or DSA traditional format. Changed
7293 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7294 format DER encoded private key. Newer code should use PKCS#8 format which
7295 has the key type encoded in the ASN1 structure. Added DER private key
7296 support to pkcs8 application.
7299 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7300 ciphersuites has been selected (as required by the SSL 3/TLS 1
7301 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7302 is set, we interpret this as a request to violate the specification
7303 (the worst that can happen is a handshake failure, and 'correct'
7304 behaviour would result in a handshake failure anyway).
7307 *) In SSL_CTX_add_session, take into account that there might be multiple
7308 SSL_SESSION structures with the same session ID (e.g. when two threads
7309 concurrently obtain them from an external cache).
7310 The internal cache can handle only one SSL_SESSION with a given ID,
7311 so if there's a conflict, we now throw out the old one to achieve
7315 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7316 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7317 some routines that use cipher OIDs: some ciphers do not have OIDs
7318 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7322 *) Simplify the trust setting structure and code. Now we just have
7323 two sequences of OIDs for trusted and rejected settings. These will
7324 typically have values the same as the extended key usage extension
7325 and any application specific purposes.
7327 The trust checking code now has a default behaviour: it will just
7328 check for an object with the same NID as the passed id. Functions can
7329 be provided to override either the default behaviour or the behaviour
7330 for a given id. SSL client, server and email already have functions
7331 in place for compatibility: they check the NID and also return "trusted"
7332 if the certificate is self signed.
7335 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7336 traditional format into an EVP_PKEY structure.
7339 *) Add a password callback function PEM_cb() which either prompts for
7340 a password if usr_data is NULL or otherwise assumes it is a null
7341 terminated password. Allow passwords to be passed on command line
7342 environment or config files in a few more utilities.
7345 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7346 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7347 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7348 Update documentation.
7351 *) Support for ASN1 "NULL" type. This could be handled before by using
7352 ASN1_TYPE but there wasn't any function that would try to read a NULL
7353 and produce an error if it couldn't. For compatibility we also have
7354 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7355 don't allocate anything because they don't need to.
7358 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7360 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7362 *) Rebuild of the memory allocation routines used by OpenSSL code and
7363 possibly others as well. The purpose is to make an interface that
7364 provide hooks so anyone can build a separate set of allocation and
7365 deallocation routines to be used by OpenSSL, for example memory
7366 pool implementations, or something else, which was previously hard
7367 since Malloc(), Realloc() and Free() were defined as macros having
7368 the values malloc, realloc and free, respectively (except for Win32
7369 compilations). The same is provided for memory debugging code.
7370 OpenSSL already comes with functionality to find memory leaks, but
7371 this gives people a chance to debug other memory problems.
7373 With these changes, a new set of functions and macros have appeared:
7375 CRYPTO_set_mem_debug_functions() [F]
7376 CRYPTO_get_mem_debug_functions() [F]
7377 CRYPTO_dbg_set_options() [F]
7378 CRYPTO_dbg_get_options() [F]
7379 CRYPTO_malloc_debug_init() [M]
7381 The memory debug functions are NULL by default, unless the library
7382 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7383 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7384 gives the standard debugging functions that come with OpenSSL) or
7385 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7386 provided by the library user) must be used. When the standard
7387 debugging functions are used, CRYPTO_dbg_set_options can be used to
7388 request additional information:
7389 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7390 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7392 Also, things like CRYPTO_set_mem_functions will always give the
7393 expected result (the new set of functions is used for allocation
7394 and deallocation) at all times, regardless of platform and compiler
7397 To finish it up, some functions that were never use in any other
7398 way than through macros have a new API and new semantic:
7401 CRYPTO_dbg_realloc()
7404 All macros of value have retained their old syntax.
7405 [Richard Levitte and Bodo Moeller]
7407 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7408 ordering of SMIMECapabilities wasn't in "strength order" and there
7409 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7413 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7414 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7415 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7417 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7418 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7419 functionality to handle multipart/signed properly) and a utility
7420 called 'smime' to call all this stuff. This is based on code I
7421 originally wrote for Celo who have kindly allowed it to be
7422 included in OpenSSL.
7425 *) Add variants des_set_key_checked and des_set_key_unchecked of
7426 des_set_key (aka des_key_sched). Global variable des_check_key
7427 decides which of these is called by des_set_key; this way
7428 des_check_key behaves as it always did, but applications and
7429 the library itself, which was buggy for des_check_key == 1,
7430 have a cleaner way to pick the version they need.
7433 *) New function PKCS12_newpass() which changes the password of a
7437 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7438 dynamic mix. In both cases the ids can be used as an index into the
7439 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7440 functions so they accept a list of the field values and the
7441 application doesn't need to directly manipulate the X509_TRUST
7445 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7449 *) Modify the way the V3 extension code looks up extensions. This now
7450 works in a similar way to the object code: we have some "standard"
7451 extensions in a static table which is searched with OBJ_bsearch()
7452 and the application can add dynamic ones if needed. The file
7453 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7454 updated whenever a new extension is added to the core code and kept
7455 in ext_nid order. There is a simple program 'tabtest.c' which checks
7456 this. New extensions are not added too often so this file can readily
7457 be maintained manually.
7459 There are two big advantages in doing things this way. The extensions
7460 can be looked up immediately and no longer need to be "added" using
7461 X509V3_add_standard_extensions(): this function now does nothing.
7462 [Side note: I get *lots* of email saying the extension code doesn't
7463 work because people forget to call this function]
7464 Also no dynamic allocation is done unless new extensions are added:
7465 so if we don't add custom extensions there is no need to call
7466 X509V3_EXT_cleanup().
7469 *) Modify enc utility's salting as follows: make salting the default. Add a
7470 magic header, so unsalted files fail gracefully instead of just decrypting
7471 to garbage. This is because not salting is a big security hole, so people
7472 should be discouraged from doing it.
7475 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7476 digest to be passed on the command line but it only used this
7477 parameter when signing a certificate. Modified so all relevant
7478 operations are affected by the digest parameter including the
7479 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7480 DSA key was used because it didn't fix the digest.
7483 *) Initial certificate chain verify code. Currently tests the untrusted
7484 certificates for consistency with the verify purpose (which is set
7485 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7487 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7488 this is because it will reject chains with invalid extensions whereas
7489 every previous version of OpenSSL and SSLeay made no checks at all.
7491 Trust code: checks the root CA for the relevant trust settings. Trust
7492 settings have an initial value consistent with the verify purpose: e.g.
7493 if the verify purpose is for SSL client use it expects the CA to be
7494 trusted for SSL client use. However the default value can be changed to
7495 permit custom trust settings: one example of this would be to only trust
7496 certificates from a specific "secure" set of CAs.
7498 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7499 which should be used for version portability: especially since the
7500 verify structure is likely to change more often now.
7502 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7503 to set them. If not set then assume SSL clients will verify SSL servers
7506 Two new options to the verify program: -untrusted allows a set of
7507 untrusted certificates to be passed in and -purpose which sets the
7508 intended purpose of the certificate. If a purpose is set then the
7509 new chain verify code is used to check extension consistency.
7512 *) Support for the authority information access extension.
7515 *) Modify RSA and DSA PEM read routines to transparently handle
7516 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7517 public keys in a format compatible with certificate
7518 SubjectPublicKeyInfo structures. Unfortunately there were already
7519 functions called *_PublicKey_* which used various odd formats so
7520 these are retained for compatibility: however the DSA variants were
7521 never in a public release so they have been deleted. Changed dsa/rsa
7522 utilities to handle the new format: note no releases ever handled public
7523 keys so we should be OK.
7525 The primary motivation for this change is to avoid the same fiasco
7526 that dogs private keys: there are several incompatible private key
7527 formats some of which are standard and some OpenSSL specific and
7528 require various evil hacks to allow partial transparent handling and
7529 even then it doesn't work with DER formats. Given the option anything
7530 other than PKCS#8 should be dumped: but the other formats have to
7531 stay in the name of compatibility.
7533 With public keys and the benefit of hindsight one standard format
7534 is used which works with EVP_PKEY, RSA or DSA structures: though
7535 it clearly returns an error if you try to read the wrong kind of key.
7537 Added a -pubkey option to the 'x509' utility to output the public key.
7538 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7539 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7540 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7541 that do the same as the EVP_PKEY_assign_*() except they up the
7542 reference count of the added key (they don't "swallow" the
7546 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7547 CRLs would fail if the file contained no certificates or no CRLs:
7548 added a new function to read in both types and return the number
7549 read: this means that if none are read it will be an error. The
7550 DER versions of the certificate and CRL reader would always fail
7551 because it isn't possible to mix certificates and CRLs in DER format
7552 without choking one or the other routine. Changed this to just read
7553 a certificate: this is the best we can do. Also modified the code
7554 in apps/verify.c to take notice of return codes: it was previously
7555 attempting to read in certificates from NULL pointers and ignoring
7556 any errors: this is one reason why the cert and CRL reader seemed
7557 to work. It doesn't check return codes from the default certificate
7558 routines: these may well fail if the certificates aren't installed.
7561 *) Code to support otherName option in GeneralName.
7564 *) First update to verify code. Change the verify utility
7565 so it warns if it is passed a self signed certificate:
7566 for consistency with the normal behaviour. X509_verify
7567 has been modified to it will now verify a self signed
7568 certificate if *exactly* the same certificate appears
7569 in the store: it was previously impossible to trust a
7570 single self signed certificate. This means that:
7571 openssl verify ss.pem
7572 now gives a warning about a self signed certificate but
7573 openssl verify -CAfile ss.pem ss.pem
7577 *) For servers, store verify_result in SSL_SESSION data structure
7578 (and add it to external session representation).
7579 This is needed when client certificate verifications fails,
7580 but an application-provided verification callback (set by
7581 SSL_CTX_set_cert_verify_callback) allows accepting the session
7582 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7583 but returns 1): When the session is reused, we have to set
7584 ssl->verify_result to the appropriate error code to avoid
7586 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7588 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7589 case in PKCS7_dataInit() where the signed PKCS7 structure
7590 didn't contain any existing data because it was being created.
7591 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7593 *) Add a salt to the key derivation routines in enc.c. This
7594 forms the first 8 bytes of the encrypted file. Also add a
7595 -S option to allow a salt to be input on the command line.
7598 *) New function X509_cmp(). Oddly enough there wasn't a function
7599 to compare two certificates. We do this by working out the SHA1
7600 hash and comparing that. X509_cmp() will be needed by the trust
7604 *) SSL_get1_session() is like SSL_get_session(), but increments
7605 the reference count in the SSL_SESSION returned.
7606 [Geoff Thorpe <geoff@eu.c2.net>]
7608 *) Fix for 'req': it was adding a null to request attributes.
7609 Also change the X509_LOOKUP and X509_INFO code to handle
7610 certificate auxiliary information.
7613 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7617 *) Add the possibility to add extra information to the memory leak
7618 detecting output, to form tracebacks, showing from where each
7619 allocation was originated: CRYPTO_push_info("constant string") adds
7620 the string plus current file name and line number to a per-thread
7621 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7622 is like calling CYRPTO_pop_info() until the stack is empty.
7623 Also updated memory leak detection code to be multi-thread-safe.
7626 *) Add options -text and -noout to pkcs7 utility and delete the
7627 encryption options which never did anything. Update docs.
7630 *) Add options to some of the utilities to allow the pass phrase
7631 to be included on either the command line (not recommended on
7632 OSes like Unix) or read from the environment. Update the
7633 manpages and fix a few bugs.
7636 *) Add a few manpages for some of the openssl commands.
7639 *) Fix the -revoke option in ca. It was freeing up memory twice,
7640 leaking and not finding already revoked certificates.
7643 *) Extensive changes to support certificate auxiliary information.
7644 This involves the use of X509_CERT_AUX structure and X509_AUX
7645 functions. An X509_AUX function such as PEM_read_X509_AUX()
7646 can still read in a certificate file in the usual way but it
7647 will also read in any additional "auxiliary information". By
7648 doing things this way a fair degree of compatibility can be
7649 retained: existing certificates can have this information added
7650 using the new 'x509' options.
7652 Current auxiliary information includes an "alias" and some trust
7653 settings. The trust settings will ultimately be used in enhanced
7654 certificate chain verification routines: currently a certificate
7655 can only be trusted if it is self signed and then it is trusted
7659 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7660 The problem was that one of the replacement routines had not been working
7661 since SSLeay releases. For now the offending routine has been replaced
7662 with non-optimised assembler. Even so, this now gives around 95%
7663 performance improvement for 1024 bit RSA signs.
7666 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7667 handling. Most clients have the effective key size in bits equal to
7668 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7669 A few however don't do this and instead use the size of the decrypted key
7670 to determine the RC2 key length and the AlgorithmIdentifier to determine
7671 the effective key length. In this case the effective key length can still
7672 be 40 bits but the key length can be 168 bits for example. This is fixed
7673 by manually forcing an RC2 key into the EVP_PKEY structure because the
7674 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7675 the key length and effective key length are equal.
7678 *) Add a bunch of functions that should simplify the creation of
7679 X509_NAME structures. Now you should be able to do:
7680 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7681 and have it automatically work out the correct field type and fill in
7682 the structures. The more adventurous can try:
7683 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7684 and it will (hopefully) work out the correct multibyte encoding.
7687 *) Change the 'req' utility to use the new field handling and multibyte
7688 copy routines. Before the DN field creation was handled in an ad hoc
7689 way in req, ca, and x509 which was rather broken and didn't support
7690 BMPStrings or UTF8Strings. Since some software doesn't implement
7691 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7692 using the dirstring_type option. See the new comment in the default
7693 openssl.cnf for more info.
7696 *) Make crypto/rand/md_rand.c more robust:
7697 - Assure unique random numbers after fork().
7698 - Make sure that concurrent threads access the global counter and
7699 md serializably so that we never lose entropy in them
7700 or use exactly the same state in multiple threads.
7701 Access to the large state is not always serializable because
7702 the additional locking could be a performance killer, and
7703 md should be large enough anyway.
7706 *) New file apps/app_rand.c with commonly needed functionality
7707 for handling the random seed file.
7709 Use the random seed file in some applications that previously did not:
7711 dsaparam -genkey (which also ignored its '-rand' option),
7714 x509 (when signing).
7715 Except on systems with /dev/urandom, it is crucial to have a random
7716 seed file at least for key creation, DSA signing, and for DH exchanges;
7717 for RSA signatures we could do without one.
7719 gendh and gendsa (unlike genrsa) used to read only the first byte
7720 of each file listed in the '-rand' option. The function as previously
7721 found in genrsa is now in app_rand.c and is used by all programs
7722 that support '-rand'.
7725 *) In RAND_write_file, use mode 0600 for creating files;
7726 don't just chmod when it may be too late.
7729 *) Report an error from X509_STORE_load_locations
7730 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7733 *) New function ASN1_mbstring_copy() this copies a string in either
7734 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7735 into an ASN1_STRING type. A mask of permissible types is passed
7736 and it chooses the "minimal" type to use or an error if not type
7740 *) Add function equivalents to the various macros in asn1.h. The old
7741 macros are retained with an M_ prefix. Code inside the library can
7742 use the M_ macros. External code (including the openssl utility)
7743 should *NOT* in order to be "shared library friendly".
7746 *) Add various functions that can check a certificate's extensions
7747 to see if it usable for various purposes such as SSL client,
7748 server or S/MIME and CAs of these types. This is currently
7749 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7750 verification. Also added a -purpose flag to x509 utility to
7751 print out all the purposes.
7754 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7758 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7759 for, obtain and decode and extension and obtain its critical flag.
7760 This allows all the necessary extension code to be handled in a
7761 single function call.
7764 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7765 platforms. See crypto/rc4/rc4_enc.c for further details.
7768 *) New -noout option to asn1parse. This causes no output to be produced
7769 its main use is when combined with -strparse and -out to extract data
7770 from a file (which may not be in ASN.1 format).
7773 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7774 when producing the local key id.
7775 [Richard Levitte <levitte@stacken.kth.se>]
7777 *) New option -dhparam in s_server. This allows a DH parameter file to be
7778 stated explicitly. If it is not stated then it tries the first server
7779 certificate file. The previous behaviour hard coded the filename
7783 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7784 a public key to be input or output. For example:
7785 openssl rsa -in key.pem -pubout -out pubkey.pem
7786 Also added necessary DSA public key functions to handle this.
7789 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7790 in the message. This was handled by allowing
7791 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7792 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7794 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7795 to the end of the strings whereas this didn't. This would cause problems
7796 if strings read with d2i_ASN1_bytes() were later modified.
7797 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7799 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7800 data and it contains EOF it will end up returning an error. This is
7801 caused by input 46 bytes long. The cause is due to the way base64
7802 BIOs find the start of base64 encoded data. They do this by trying a
7803 trial decode on each line until they find one that works. When they
7804 do a flag is set and it starts again knowing it can pass all the
7805 data directly through the decoder. Unfortunately it doesn't reset
7806 the context it uses. This means that if EOF is reached an attempt
7807 is made to pass two EOFs through the context and this causes the
7808 resulting error. This can also cause other problems as well. As is
7809 usual with these problems it takes *ages* to find and the fix is
7810 trivial: move one line.
7811 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7813 *) Ugly workaround to get s_client and s_server working under Windows. The
7814 old code wouldn't work because it needed to select() on sockets and the
7815 tty (for keypresses and to see if data could be written). Win32 only
7816 supports select() on sockets so we select() with a 1s timeout on the
7817 sockets and then see if any characters are waiting to be read, if none
7818 are present then we retry, we also assume we can always write data to
7819 the tty. This isn't nice because the code then blocks until we've
7820 received a complete line of data and it is effectively polling the
7821 keyboard at 1s intervals: however it's quite a bit better than not
7822 working at all :-) A dedicated Windows application might handle this
7823 with an event loop for example.
7826 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7827 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7828 will be called when RSA_sign() and RSA_verify() are used. This is useful
7829 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7830 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7831 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7832 This necessitated the support of an extra signature type NID_md5_sha1
7833 for SSL signatures and modifications to the SSL library to use it instead
7834 of calling RSA_public_decrypt() and RSA_private_encrypt().
7837 *) Add new -verify -CAfile and -CApath options to the crl program, these
7838 will lookup a CRL issuers certificate and verify the signature in a
7839 similar way to the verify program. Tidy up the crl program so it
7840 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7841 less strict. It will now permit CRL extensions even if it is not
7842 a V2 CRL: this will allow it to tolerate some broken CRLs.
7845 *) Initialize all non-automatic variables each time one of the openssl
7846 sub-programs is started (this is necessary as they may be started
7847 multiple times from the "OpenSSL>" prompt).
7848 [Lennart Bang, Bodo Moeller]
7850 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7851 removing all other RSA functionality (this is what NO_RSA does). This
7852 is so (for example) those in the US can disable those operations covered
7853 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7857 *) Non-copying interface to BIO pairs.
7858 (still largely untested)
7861 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7862 ASCII string. This was handled independently in various places before.
7865 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7866 UTF8 strings a character at a time.
7869 *) Use client_version from client hello to select the protocol
7870 (s23_srvr.c) and for RSA client key exchange verification
7871 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7874 *) Add various utility functions to handle SPKACs, these were previously
7875 handled by poking round in the structure internals. Added new function
7876 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7877 print, verify and generate SPKACs. Based on an original idea from
7878 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7881 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7884 *) Allow the config file extension section to be overwritten on the
7885 command line. Based on an original idea from Massimiliano Pala
7886 <madwolf@comune.modena.it>. The new option is called -extensions
7887 and can be applied to ca, req and x509. Also -reqexts to override
7888 the request extensions in req and -crlexts to override the crl extensions
7892 *) Add new feature to the SPKAC handling in ca. Now you can include
7893 the same field multiple times by preceding it by "XXXX." for example:
7896 this is the same syntax as used in the req config file.
7899 *) Allow certificate extensions to be added to certificate requests. These
7900 are specified in a 'req_extensions' option of the req section of the
7901 config file. They can be printed out with the -text option to req but
7902 are otherwise ignored at present.
7905 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7906 data read consists of only the final block it would not decrypted because
7907 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7908 A misplaced 'break' also meant the decrypted final block might not be
7909 copied until the next read.
7912 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7913 a few extra parameters to the DH structure: these will be useful if
7914 for example we want the value of 'q' or implement X9.42 DH.
7917 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7918 provides hooks that allow the default DSA functions or functions on a
7919 "per key" basis to be replaced. This allows hardware acceleration and
7920 hardware key storage to be handled without major modification to the
7921 library. Also added low level modexp hooks and CRYPTO_EX structure and
7922 associated functions.
7925 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7926 as "read only": it can't be written to and the buffer it points to will
7927 not be freed. Reading from a read only BIO is much more efficient than
7928 a normal memory BIO. This was added because there are several times when
7929 an area of memory needs to be read from a BIO. The previous method was
7930 to create a memory BIO and write the data to it, this results in two
7931 copies of the data and an O(n^2) reading algorithm. There is a new
7932 function BIO_new_mem_buf() which creates a read only memory BIO from
7933 an area of memory. Also modified the PKCS#7 routines to use read only
7937 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7938 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7939 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7940 but a retry condition occured while trying to read the rest.
7943 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7944 NID_pkcs7_encrypted by default: this was wrong since this should almost
7945 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7946 the encrypted data type: this is a more sensible place to put it and it
7947 allows the PKCS#12 code to be tidied up that duplicated this
7951 *) Changed obj_dat.pl script so it takes its input and output files on
7952 the command line. This should avoid shell escape redirection problems
7956 *) Initial support for certificate extension requests, these are included
7957 in things like Xenroll certificate requests. Included functions to allow
7958 extensions to be obtained and added.
7961 *) -crlf option to s_client and s_server for sending newlines as
7962 CRLF (as required by many protocols).
7965 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7967 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7968 [Ralf S. Engelschall]
7970 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7971 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7973 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7977 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7978 DH parameters/keys (q is lost during that conversion, but the resulting
7979 DH parameters contain its length).
7981 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7982 much faster than DH_generate_parameters (which creates parameters
7983 where p = 2*q + 1), and also the smaller q makes DH computations
7984 much more efficient (160-bit exponentiation instead of 1024-bit
7985 exponentiation); so this provides a convenient way to support DHE
7986 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7987 utter importance to use
7988 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7990 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7991 when such DH parameters are used, because otherwise small subgroup
7992 attacks may become possible!
7995 *) Avoid memory leak in i2d_DHparams.
7998 *) Allow the -k option to be used more than once in the enc program:
7999 this allows the same encrypted message to be read by multiple recipients.
8002 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8003 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8004 it will always use the numerical form of the OID, even if it has a short
8008 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8009 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8010 otherwise bn_mod_exp was called. In the case of hardware keys for example
8011 no private key components need be present and it might store extra data
8012 in the RSA structure, which cannot be accessed from bn_mod_exp.
8013 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8014 private key operations.
8017 *) Added support for SPARC Linux.
8020 *) pem_password_cb function type incompatibly changed from
8021 typedef int pem_password_cb(char *buf, int size, int rwflag);
8023 ....(char *buf, int size, int rwflag, void *userdata);
8024 so that applications can pass data to their callbacks:
8025 The PEM[_ASN1]_{read,write}... functions and macros now take an
8026 additional void * argument, which is just handed through whenever
8027 the password callback is called.
8028 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8030 New function SSL_CTX_set_default_passwd_cb_userdata.
8032 Compatibility note: As many C implementations push function arguments
8033 onto the stack in reverse order, the new library version is likely to
8034 interoperate with programs that have been compiled with the old
8035 pem_password_cb definition (PEM_whatever takes some data that
8036 happens to be on the stack as its last argument, and the callback
8037 just ignores this garbage); but there is no guarantee whatsoever that
8040 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8041 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8042 problems not only on Windows, but also on some Unix platforms.
8043 To avoid problematic command lines, these definitions are now in an
8044 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8045 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8048 *) MIPS III/IV assembler module is reimplemented.
8051 *) More DES library cleanups: remove references to srand/rand and
8052 delete an unused file.
8055 *) Add support for the the free Netwide assembler (NASM) under Win32,
8056 since not many people have MASM (ml) and it can be hard to obtain.
8057 This is currently experimental but it seems to work OK and pass all
8058 the tests. Check out INSTALL.W32 for info.
8061 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8062 without temporary keys kept an extra copy of the server key,
8063 and connections with temporary keys did not free everything in case
8067 *) New function RSA_check_key and new openssl rsa option -check
8068 for verifying the consistency of RSA keys.
8069 [Ulf Moeller, Bodo Moeller]
8071 *) Various changes to make Win32 compile work:
8072 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8073 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8074 comparison" warnings.
8075 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8078 *) Add a debugging option to PKCS#5 v2 key generation function: when
8079 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8080 derived keys are printed to stderr.
8083 *) Copy the flags in ASN1_STRING_dup().
8084 [Roman E. Pavlov <pre@mo.msk.ru>]
8086 *) The x509 application mishandled signing requests containing DSA
8087 keys when the signing key was also DSA and the parameters didn't match.
8089 It was supposed to omit the parameters when they matched the signing key:
8090 the verifying software was then supposed to automatically use the CA's
8091 parameters if they were absent from the end user certificate.
8093 Omitting parameters is no longer recommended. The test was also
8094 the wrong way round! This was probably due to unusual behaviour in
8095 EVP_cmp_parameters() which returns 1 if the parameters match.
8096 This meant that parameters were omitted when they *didn't* match and
8097 the certificate was useless. Certificates signed with 'ca' didn't have
8099 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8101 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8102 The interface is as follows:
8103 Applications can use
8104 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8105 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8106 "off" is now the default.
8107 The library internally uses
8108 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8109 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8110 to disable memory-checking temporarily.
8112 Some inconsistent states that previously were possible (and were
8113 even the default) are now avoided.
8115 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8116 with each memory chunk allocated; this is occasionally more helpful
8117 than just having a counter.
8119 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8121 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8125 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8126 which largely parallels "options", but is for changing API behaviour,
8127 whereas "options" are about protocol behaviour.
8128 Initial "mode" flags are:
8130 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8131 a single record has been written.
8132 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8133 retries use the same buffer location.
8134 (But all of the contents must be
8138 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8141 *) Fix problems with no-hmac etc.
8142 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8144 *) New functions RSA_get_default_method(), RSA_set_method() and
8145 RSA_get_method(). These allows replacement of RSA_METHODs without having
8146 to mess around with the internals of an RSA structure.
8149 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8150 Also really enable memory leak checks in openssl.c and in some
8152 [Chad C. Mulligan, Bodo Moeller]
8154 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8155 up the length of negative integers. This has now been simplified to just
8156 store the length when it is first determined and use it later, rather
8157 than trying to keep track of where data is copied and updating it to
8159 [Steve Henson, reported by Brien Wheeler
8160 <bwheeler@authentica-security.com>]
8162 *) Add a new function PKCS7_signatureVerify. This allows the verification
8163 of a PKCS#7 signature but with the signing certificate passed to the
8164 function itself. This contrasts with PKCS7_dataVerify which assumes the
8165 certificate is present in the PKCS#7 structure. This isn't always the
8166 case: certificates can be omitted from a PKCS#7 structure and be
8167 distributed by "out of band" means (such as a certificate database).
8170 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8171 function prototypes in pem.h, also change util/mkdef.pl to add the
8172 necessary function names.
8175 *) mk1mf.pl (used by Windows builds) did not properly read the
8176 options set by Configure in the top level Makefile, and Configure
8177 was not even able to write more than one option correctly.
8178 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8181 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8182 file to be loaded from a BIO or FILE pointer. The BIO version will
8183 for example allow memory BIOs to contain config info.
8186 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8187 Whoever hopes to achieve shared-library compatibility across versions
8188 must use this, not the compile-time macro.
8189 (Exercise 0.9.4: Which is the minimum library version required by
8191 Note: All this applies only to multi-threaded programs, others don't
8195 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8196 through a BIO pair triggered the default case, i.e.
8197 SSLerr(...,SSL_R_UNKNOWN_STATE).
8200 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8201 can use the SSL library even if none of the specific BIOs is
8205 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8206 for the encoded length.
8207 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8209 *) Add initial documentation of the X509V3 functions.
8212 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8213 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8214 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8215 secure PKCS#8 private key format with a high iteration count.
8218 *) Fix determination of Perl interpreter: A perl or perl5
8219 _directory_ in $PATH was also accepted as the interpreter.
8220 [Ralf S. Engelschall]
8222 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8223 wrong with it but it was very old and did things like calling
8224 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8228 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8229 to use the new extension code.
8232 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8233 with macros. This should make it easier to change their form, add extra
8234 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8238 *) Add to configuration table a new entry that can specify an alternative
8239 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8240 according to Mark Crispin <MRC@Panda.COM>.
8244 *) DES CBC did not update the IV. Weird.
8247 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8248 Changing the behaviour of the former might break existing programs --
8249 where IV updating is needed, des_ncbc_encrypt can be used.
8252 *) When bntest is run from "make test" it drives bc to check its
8253 calculations, as well as internally checking them. If an internal check
8254 fails, it needs to cause bc to give a non-zero result or make test carries
8255 on without noticing the failure. Fixed.
8258 *) DES library cleanups.
8261 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8262 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8263 ciphers. NOTE: although the key derivation function has been verified
8264 against some published test vectors it has not been extensively tested
8265 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8269 *) Instead of "mkdir -p", which is not fully portable, use new
8270 Perl script "util/mkdir-p.pl".
8273 *) Rewrite the way password based encryption (PBE) is handled. It used to
8274 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8275 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8276 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8277 the 'parameter' field of the AlgorithmIdentifier is passed to the
8278 underlying key generation function so it must do its own ASN1 parsing.
8279 This has also changed the EVP_PBE_CipherInit() function which now has a
8280 'parameter' argument instead of literal salt and iteration count values
8281 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8284 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8285 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8286 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8287 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8288 value was just used as a "magic string" and not used directly its
8289 value doesn't matter.
8292 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8296 *) "linux-sparc64" configuration (ultrapenguin).
8297 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8298 "linux-sparc" configuration.
8299 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8301 *) config now generates no-xxx options for missing ciphers.
8304 *) Support the EBCDIC character set (work in progress).
8305 File ebcdic.c not yet included because it has a different license.
8306 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8308 *) Support BS2000/OSD-POSIX.
8309 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8311 *) Make callbacks for key generation use void * instead of char *.
8314 *) Make S/MIME samples compile (not yet tested).
8317 *) Additional typesafe stacks.
8320 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8324 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8326 *) New configuration variant "sco5-gcc".
8328 *) Updated some demos.
8329 [Sean O Riordain, Wade Scholine]
8331 *) Add missing BIO_free at exit of pkcs12 application.
8334 *) Fix memory leak in conf.c.
8337 *) Updates for Win32 to assembler version of MD5.
8340 *) Set #! path to perl in apps/der_chop to where we found it
8341 instead of using a fixed path.
8344 *) SHA library changes for irix64-mips4-cc.
8347 *) Improvements for VMS support.
8351 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8353 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8354 This also avoids the problems with SC4.2 and unpatched SC5.
8355 [Andy Polyakov <appro@fy.chalmers.se>]
8357 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8358 These are required because of the typesafe stack would otherwise break
8359 existing code. If old code used a structure member which used to be STACK
8360 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8361 sk_num or sk_value it would produce an error because the num, data members
8362 are not present in STACK_OF. Now it just produces a warning. sk_set
8363 replaces the old method of assigning a value to sk_value
8364 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8365 that does this will no longer work (and should use sk_set instead) but
8366 this could be regarded as a "questionable" behaviour anyway.
8369 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8370 correctly handle encrypted S/MIME data.
8373 *) Change type of various DES function arguments from des_cblock
8374 (which means, in function argument declarations, pointer to char)
8375 to des_cblock * (meaning pointer to array with 8 char elements),
8376 which allows the compiler to do more typechecking; it was like
8377 that back in SSLeay, but with lots of ugly casts.
8379 Introduce new type const_des_cblock.
8382 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8383 problems: find RecipientInfo structure that matches recipient certificate
8384 and initialise the ASN1 structures properly based on passed cipher.
8387 *) Belatedly make the BN tests actually check the results.
8390 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8391 to and from BNs: it was completely broken. New compilation option
8392 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8393 key elements as negative integers.
8396 *) Reorganize and speed up MD5.
8397 [Andy Polyakov <appro@fy.chalmers.se>]
8400 [Richard Levitte <richard@levitte.org>]
8402 *) New option -out to asn1parse to allow the parsed structure to be
8403 output to a file. This is most useful when combined with the -strparse
8404 option to examine the output of things like OCTET STRINGS.
8407 *) Make SSL library a little more fool-proof by not requiring any longer
8408 that SSL_set_{accept,connect}_state be called before
8409 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8410 in many applications because usually everything *appeared* to work as
8411 intended anyway -- now it really works as intended).
8414 *) Move openssl.cnf out of lib/.
8417 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8418 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8419 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8420 [Ralf S. Engelschall]
8422 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8423 handle PKCS#7 enveloped data properly.
8424 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8426 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8427 copying pointers. The cert_st handling is changed by this in
8428 various ways (and thus what used to be known as ctx->default_cert
8429 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8430 any longer when s->cert does not give us what we need).
8431 ssl_cert_instantiate becomes obsolete by this change.
8432 As soon as we've got the new code right (possibly it already is?),
8433 we have solved a couple of bugs of the earlier code where s->cert
8434 was used as if it could not have been shared with other SSL structures.
8436 Note that using the SSL API in certain dirty ways now will result
8437 in different behaviour than observed with earlier library versions:
8438 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8439 does not influence s as it used to.
8441 In order to clean up things more thoroughly, inside SSL_SESSION
8442 we don't use CERT any longer, but a new structure SESS_CERT
8443 that holds per-session data (if available); currently, this is
8444 the peer's certificate chain and, for clients, the server's certificate
8445 and temporary key. CERT holds only those values that can have
8446 meaningful defaults in an SSL_CTX.
8449 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8450 from the internal representation. Various PKCS#7 fixes: remove some
8451 evil casts and set the enc_dig_alg field properly based on the signing
8455 *) Allow PKCS#12 password to be set from the command line or the
8456 environment. Let 'ca' get its config file name from the environment
8457 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8461 *) Allow certificate policies extension to use an IA5STRING for the
8462 organization field. This is contrary to the PKIX definition but
8463 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8467 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8468 without disallowing inline assembler and the like for non-pedantic builds.
8471 *) Support Borland C++ builder.
8472 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8477 *) SHA-1 cleanups and performance enhancements.
8478 [Andy Polyakov <appro@fy.chalmers.se>]
8480 *) Sparc v8plus assembler for the bignum library.
8481 [Andy Polyakov <appro@fy.chalmers.se>]
8483 *) Accept any -xxx and +xxx compiler options in Configure.
8486 *) Update HPUX configuration.
8489 *) Add missing sk_<type>_unshift() function to safestack.h
8490 [Ralf S. Engelschall]
8492 *) New function SSL_CTX_use_certificate_chain_file that sets the
8493 "extra_cert"s in addition to the certificate. (This makes sense
8494 only for "PEM" format files, as chains as a whole are not
8498 *) Support verify_depth from the SSL API.
8499 x509_vfy.c had what can be considered an off-by-one-error:
8500 Its depth (which was not part of the external interface)
8501 was actually counting the number of certificates in a chain;
8502 now it really counts the depth.
8505 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8506 instead of X509err, which often resulted in confusing error
8507 messages since the error codes are not globally unique
8508 (e.g. an alleged error in ssl3_accept when a certificate
8509 didn't match the private key).
8511 *) New function SSL_CTX_set_session_id_context that allows to set a default
8512 value (so that you don't need SSL_set_session_id_context for each
8513 connection using the SSL_CTX).
8516 *) OAEP decoding bug fix.
8519 *) Support INSTALL_PREFIX for package builders, as proposed by
8523 *) New Configure options "threads" and "no-threads". For systems
8524 where the proper compiler options are known (currently Solaris
8525 and Linux), "threads" is the default.
8528 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8531 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8532 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8533 such as /usr/local/bin.
8536 *) "make linux-shared" to build shared libraries.
8537 [Niels Poppe <niels@netbox.org>]
8539 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8542 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8543 extension adding in x509 utility.
8546 *) Remove NOPROTO sections and error code comments.
8549 *) Partial rewrite of the DEF file generator to now parse the ANSI
8553 *) New Configure options --prefix=DIR and --openssldir=DIR.
8556 *) Complete rewrite of the error code script(s). It is all now handled
8557 by one script at the top level which handles error code gathering,
8558 header rewriting and C source file generation. It should be much better
8559 than the old method: it now uses a modified version of Ulf's parser to
8560 read the ANSI prototypes in all header files (thus the old K&R definitions
8561 aren't needed for error creation any more) and do a better job of
8562 translating function codes into names. The old 'ASN1 error code imbedded
8563 in a comment' is no longer necessary and it doesn't use .err files which
8564 have now been deleted. Also the error code call doesn't have to appear all
8565 on one line (which resulted in some large lines...).
8568 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8571 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8572 0 (which usually indicates a closed connection), but continue reading.
8575 *) Fix some race conditions.
8578 *) Add support for CRL distribution points extension. Add Certificate
8579 Policies and CRL distribution points documentation.
8582 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8585 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8586 8 of keying material. Merlin has also confirmed interop with this fix
8587 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8588 [Merlin Hughes <merlin@baltimore.ie>]
8590 *) Fix lots of warnings.
8591 [Richard Levitte <levitte@stacken.kth.se>]
8593 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8594 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8595 [Richard Levitte <levitte@stacken.kth.se>]
8597 *) Fix problems with sizeof(long) == 8.
8598 [Andy Polyakov <appro@fy.chalmers.se>]
8600 *) Change functions to ANSI C.
8603 *) Fix typos in error codes.
8604 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8606 *) Remove defunct assembler files from Configure.
8609 *) SPARC v8 assembler BIGNUM implementation.
8610 [Andy Polyakov <appro@fy.chalmers.se>]
8612 *) Support for Certificate Policies extension: both print and set.
8613 Various additions to support the r2i method this uses.
8616 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8617 return a const string when you are expecting an allocated buffer.
8620 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8621 types DirectoryString and DisplayText.
8624 *) Add code to allow r2i extensions to access the configuration database,
8625 add an LHASH database driver and add several ctx helper functions.
8628 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8629 fail when they extended the size of a BIGNUM.
8632 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8633 support typesafe stack.
8636 *) Fix typo in SSL_[gs]et_options().
8637 [Nils Frostberg <nils@medcom.se>]
8639 *) Delete various functions and files that belonged to the (now obsolete)
8640 old X509V3 handling code.
8643 *) New Configure option "rsaref".
8646 *) Don't auto-generate pem.h.
8649 *) Introduce type-safe ASN.1 SETs.
8652 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8653 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8655 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8656 that links with OpenSSL (well at least cause lots of warnings), but fear
8657 not: the conversion is trivial, and it eliminates loads of evil casts. A
8658 few STACKed things have been converted already. Feel free to convert more.
8659 In the fullness of time, I'll do away with the STACK type altogether.
8662 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8663 specified in <certfile> by updating the entry in the index.txt file.
8664 This way one no longer has to edit the index.txt file manually for
8665 revoking a certificate. The -revoke option does the gory details now.
8666 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8668 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8669 `-text' option at all and this way the `-noout -text' combination was
8670 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8671 [Ralf S. Engelschall]
8673 *) Make sure a corresponding plain text error message exists for the
8674 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8675 verify callback function determined that a certificate was revoked.
8676 [Ralf S. Engelschall]
8678 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8679 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8680 all available cipers including rc5, which was forgotten until now.
8681 In order to let the testing shell script know which algorithms
8682 are available, a new (up to now undocumented) command
8683 "openssl list-cipher-commands" is used.
8686 *) Bugfix: s_client occasionally would sleep in select() when
8687 it should have checked SSL_pending() first.
8690 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8691 the raw DSA values prior to ASN.1 encoding.
8694 *) Tweaks to Configure
8695 [Niels Poppe <niels@netbox.org>]
8697 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8701 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8704 *) New config option to avoid instructions that are illegal on the 80386.
8705 The default code is faster, but requires at least a 486.
8708 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8709 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8710 same as SSL2_VERSION anyway.
8713 *) New "-showcerts" option for s_client.
8716 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8717 application. Various cleanups and fixes.
8720 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8721 modify error routines to work internally. Add error codes and PBE init
8722 to library startup routines.
8725 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8726 packing functions to asn1 and evp. Changed function names and error
8727 codes along the way.
8730 *) PKCS12 integration: and so it begins... First of several patches to
8731 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8732 objects to objects.h
8735 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8736 and display support for Thawte strong extranet extension.
8739 *) Add LinuxPPC support.
8740 [Jeff Dubrule <igor@pobox.org>]
8742 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8743 bn_div_words in alpha.s.
8744 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8746 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8747 OAEP isn't supported when OpenSSL is built with RSAref.
8748 [Ulf Moeller <ulf@fitug.de>]
8750 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8751 so they no longer are missing under -DNOPROTO.
8752 [Soren S. Jorvang <soren@t.dk>]
8755 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8757 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8758 doesn't work when the session is reused. Coming soon!
8761 *) Fix a security hole, that allows sessions to be reused in the wrong
8762 context thus bypassing client cert protection! All software that uses
8763 client certs and session caches in multiple contexts NEEDS PATCHING to
8764 allow session reuse! A fuller solution is in the works.
8765 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8767 *) Some more source tree cleanups (removed obsolete files
8768 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8769 permission on "config" script to be executable) and a fix for the INSTALL
8771 [Ulf Moeller <ulf@fitug.de>]
8773 *) Remove some legacy and erroneous uses of malloc, free instead of
8775 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8777 *) Make rsa_oaep_test return non-zero on error.
8778 [Ulf Moeller <ulf@fitug.de>]
8780 *) Add support for native Solaris shared libraries. Configure
8781 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8782 if someone would make that last step automatic.
8783 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8785 *) ctx_size was not built with the right compiler during "make links". Fixed.
8788 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8789 except NULL ciphers". This means the default cipher list will no longer
8790 enable NULL ciphers. They need to be specifically enabled e.g. with
8791 the string "DEFAULT:eNULL".
8794 *) Fix to RSA private encryption routines: if p < q then it would
8795 occasionally produce an invalid result. This will only happen with
8796 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8799 *) Be less restrictive and allow also `perl util/perlpath.pl
8800 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8801 because this way one can also use an interpreter named `perl5' (which is
8802 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8803 installed as `perl').
8804 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8806 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8807 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8809 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8810 advapi32.lib to Win32 build and change the pem test comparision
8811 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8812 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8813 and crypto/des/ede_cbcm_enc.c.
8816 *) DES quad checksum was broken on big-endian architectures. Fixed.
8819 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8820 Win32 test batch file so it (might) work again. The Win32 test batch file
8821 is horrible: I feel ill....
8824 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8825 in e_os.h. Audit of header files to check ANSI and non ANSI
8826 sections: 10 functions were absent from non ANSI section and not exported
8827 from Windows DLLs. Fixed up libeay.num for new functions.
8830 *) Make `openssl version' output lines consistent.
8831 [Ralf S. Engelschall]
8833 *) Fix Win32 symbol export lists for BIO functions: Added
8834 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8835 to ms/libeay{16,32}.def.
8836 [Ralf S. Engelschall]
8838 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8839 fine under Unix and passes some trivial tests I've now added. But the
8840 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8841 added to make sure no one expects that this stuff really works in the
8842 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8843 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8845 [Ralf S. Engelschall]
8847 *) Fix the generation of two part addresses in perl.
8848 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8850 *) Add config entry for Linux on MIPS.
8851 [John Tobey <jtobey@channel1.com>]
8853 *) Make links whenever Configure is run, unless we are on Windoze.
8856 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8857 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8861 *) Add a useful kludge to allow package maintainers to specify compiler and
8862 other platforms details on the command line without having to patch the
8863 Configure script everytime: One now can use ``perl Configure
8864 <id>:<details>'', i.e. platform ids are allowed to have details appended
8865 to them (seperated by colons). This is treated as there would be a static
8866 pre-configured entry in Configure's %table under key <id> with value
8867 <details> and ``perl Configure <id>'' is called. So, when you want to
8868 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8869 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8870 now, which overrides the FreeBSD-elf entry on-the-fly.
8871 [Ralf S. Engelschall]
8873 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8876 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8877 on the `perl Configure ...' command line. This way one can compile
8878 OpenSSL libraries with Position Independent Code (PIC) which is needed
8879 for linking it into DSOs.
8880 [Ralf S. Engelschall]
8882 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8886 *) Cleaned up the LICENSE document: The official contact for any license
8887 questions now is the OpenSSL core team under openssl-core@openssl.org.
8888 And add a paragraph about the dual-license situation to make sure people
8889 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8890 to the OpenSSL toolkit.
8891 [Ralf S. Engelschall]
8893 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8894 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8895 Additonally cleaned up the `make links' target: Remove unnecessary
8896 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8897 to speed processing and no longer clutter the display with confusing
8898 stuff. Instead only the actually done links are displayed.
8899 [Ralf S. Engelschall]
8901 *) Permit null encryption ciphersuites, used for authentication only. It used
8902 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8903 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8907 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8908 signed attributes when verifying signatures (this would break them),
8909 the detached data encoding was wrong and public keys obtained using
8910 X509_get_pubkey() weren't freed.
8913 *) Add text documentation for the BUFFER functions. Also added a work around
8914 to a Win95 console bug. This was triggered by the password read stuff: the
8915 last character typed gets carried over to the next fread(). If you were
8916 generating a new cert request using 'req' for example then the last
8917 character of the passphrase would be CR which would then enter the first
8921 *) Added the new `Includes OpenSSL Cryptography Software' button as
8922 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8923 button and can be used by applications based on OpenSSL to show the
8924 relationship to the OpenSSL project.
8925 [Ralf S. Engelschall]
8927 *) Remove confusing variables in function signatures in files
8928 ssl/ssl_lib.c and ssl/ssl.h.
8929 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8931 *) Don't install bss_file.c under PREFIX/include/
8932 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8934 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8935 functions that return function pointers and has support for NT specific
8936 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8937 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8938 unsigned to signed types: this was killing the Win32 compile.
8941 *) Add new certificate file to stack functions,
8942 SSL_add_dir_cert_subjects_to_stack() and
8943 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8944 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8945 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8946 This means that Apache-SSL and similar packages don't have to mess around
8947 to add as many CAs as they want to the preferred list.
8950 *) Experiment with doxygen documentation. Currently only partially applied to
8952 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8953 openssl.doxy as the configuration file.
8956 *) Get rid of remaining C++-style comments which strict C compilers hate.
8957 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8959 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8960 compiled in by default: it has problems with large keys.
8963 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8964 DH private keys and/or callback functions which directly correspond to
8965 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8966 is needed for applications which have to configure certificates on a
8967 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8969 For the RSA certificate situation is makes no difference, but
8970 for the DSA certificate situation this fixes the "no shared cipher"
8971 problem where the OpenSSL cipher selection procedure failed because the
8972 temporary keys were not overtaken from the context and the API provided
8973 no way to reconfigure them.
8974 The new functions now let applications reconfigure the stuff and they
8975 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8976 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8977 non-public-API function ssl_cert_instantiate() is used as a helper
8978 function and also to reduce code redundancy inside ssl_rsa.c.
8979 [Ralf S. Engelschall]
8981 *) Move s_server -dcert and -dkey options out of the undocumented feature
8982 area because they are useful for the DSA situation and should be
8983 recognized by the users.
8984 [Ralf S. Engelschall]
8986 *) Fix the cipher decision scheme for export ciphers: the export bits are
8987 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8988 SSL_EXP_MASK. So, the original variable has to be used instead of the
8989 already masked variable.
8990 [Richard Levitte <levitte@stacken.kth.se>]
8992 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8993 [Richard Levitte <levitte@stacken.kth.se>]
8995 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8996 from `int' to `unsigned int' because it's a length and initialized by
8997 EVP_DigestFinal() which expects an `unsigned int *'.
8998 [Richard Levitte <levitte@stacken.kth.se>]
9000 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9001 script. Instead use the usual Shell->Perl transition trick.
9002 [Ralf S. Engelschall]
9004 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9005 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9006 -noout -modulus' as it's already the case for `openssl rsa -noout
9007 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9008 currently the public key is printed (a decision which was already done by
9009 `openssl dsa -modulus' in the past) which serves a similar purpose.
9010 Additionally the NO_RSA no longer completely removes the whole -modulus
9011 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9013 [Ralf S. Engelschall]
9015 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9016 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9017 [Arne Ansper <arne@ats.cyber.ee>]
9019 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9020 to be added. Now both 'req' and 'ca' can use new objects defined in the
9024 *) Add cool BIO that does syslog (or event log on NT).
9025 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9027 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9028 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9029 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9030 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9033 *) Add preliminary config info for new extension code.
9036 *) Make RSA_NO_PADDING really use no padding.
9037 [Ulf Moeller <ulf@fitug.de>]
9039 *) Generate errors when private/public key check is done.
9042 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9043 for some CRL extensions and new objects added.
9046 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9047 key usage extension and fuller support for authority key id.
9050 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9051 padding method for RSA, which is recommended for new applications in PKCS
9052 #1 v2.0 (RFC 2437, October 1998).
9053 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9054 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9055 against Bleichbacher's attack on RSA.
9056 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9059 *) Updates to the new SSL compression code
9060 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9062 *) Fix so that the version number in the master secret, when passed
9063 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9064 (because the server will not accept higher), that the version number
9065 is 0x03,0x01, not 0x03,0x00
9066 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9068 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9069 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9070 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9073 *) Support for RAW extensions where an arbitrary extension can be
9074 created by including its DER encoding. See apps/openssl.cnf for
9078 *) Make sure latest Perl versions don't interpret some generated C array
9079 code as Perl array code in the crypto/err/err_genc.pl script.
9080 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9082 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9083 not many people have the assembler. Various Win32 compilation fixes and
9084 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9088 *) Modify configure script 'Configure' to automatically create crypto/date.h
9089 file under Win32 and also build pem.h from pem.org. New script
9090 util/mkfiles.pl to create the MINFO file on environments that can't do a
9091 'make files': perl util/mkfiles.pl >MINFO should work.
9094 *) Major rework of DES function declarations, in the pursuit of correctness
9095 and purity. As a result, many evil casts evaporated, and some weirdness,
9096 too. You may find this causes warnings in your code. Zapping your evil
9097 casts will probably fix them. Mostly.
9100 *) Fix for a typo in asn1.h. Bug fix to object creation script
9101 obj_dat.pl. It considered a zero in an object definition to mean
9102 "end of object": none of the objects in objects.h have any zeros
9103 so it wasn't spotted.
9104 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9106 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9107 Masking (CBCM). In the absence of test vectors, the best I have been able
9108 to do is check that the decrypt undoes the encrypt, so far. Send me test
9109 vectors if you have them.
9112 *) Correct calculation of key length for export ciphers (too much space was
9113 allocated for null ciphers). This has not been tested!
9116 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9117 message is now correct (it understands "crypto" and "ssl" on its
9118 command line). There is also now an "update" option. This will update
9119 the util/ssleay.num and util/libeay.num files with any new functions.
9121 perl util/mkdef.pl crypto ssl update
9122 it will update them.
9125 *) Overhauled the Perl interface (perl/*):
9126 - ported BN stuff to OpenSSL's different BN library
9127 - made the perl/ source tree CVS-aware
9128 - renamed the package from SSLeay to OpenSSL (the files still contain
9129 their history because I've copied them in the repository)
9130 - removed obsolete files (the test scripts will be replaced
9131 by better Test::Harness variants in the future)
9132 [Ralf S. Engelschall]
9134 *) First cut for a very conservative source tree cleanup:
9135 1. merge various obsolete readme texts into doc/ssleay.txt
9136 where we collect the old documents and readme texts.
9137 2. remove the first part of files where I'm already sure that we no
9138 longer need them because of three reasons: either they are just temporary
9139 files which were left by Eric or they are preserved original files where
9140 I've verified that the diff is also available in the CVS via "cvs diff
9141 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9142 the crypto/md/ stuff).
9143 [Ralf S. Engelschall]
9145 *) More extension code. Incomplete support for subject and issuer alt
9146 name, issuer and authority key id. Change the i2v function parameters
9147 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9148 what that's for :-) Fix to ASN1 macro which messed up
9149 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9152 *) Preliminary support for ENUMERATED type. This is largely copied from the
9156 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9157 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9159 *) Make sure `make rehash' target really finds the `openssl' program.
9160 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9162 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9163 like to hear about it if this slows down other processors.
9166 *) Add CygWin32 platform information to Configure script.
9167 [Alan Batie <batie@aahz.jf.intel.com>]
9169 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9170 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9172 *) New program nseq to manipulate netscape certificate sequences
9175 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9179 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9180 but the BN code had some problems that would cause failures when
9181 doing certificate verification and some other functions.
9182 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9184 *) Add ASN1 and PEM code to support netscape certificate sequences.
9187 *) Add ASN1 and PEM code to support netscape certificate sequences.
9190 *) Add several PKIX and private extended key usage OIDs.
9193 *) Modify the 'ca' program to handle the new extension code. Modify
9194 openssl.cnf for new extension format, add comments.
9197 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9198 and add a sample to openssl.cnf so req -x509 now adds appropriate
9202 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9203 error code, add initial support to X509_print() and x509 application.
9206 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9207 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9208 stuff is currently isolated and isn't even compiled yet.
9211 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9212 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9213 Removed the versions check from X509 routines when loading extensions:
9214 this allows certain broken certificates that don't set the version
9215 properly to be processed.
9218 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9219 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9220 can still be regenerated with "make depend".
9223 *) Spelling mistake in C version of CAST-128.
9224 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9226 *) Changes to the error generation code. The perl script err-code.pl
9227 now reads in the old error codes and retains the old numbers, only
9228 adding new ones if necessary. It also only changes the .err files if new
9229 codes are added. The makefiles have been modified to only insert errors
9230 when needed (to avoid needlessly modifying header files). This is done
9231 by only inserting errors if the .err file is newer than the auto generated
9232 C file. To rebuild all the error codes from scratch (the old behaviour)
9233 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9234 or delete all the .err files.
9237 *) CAST-128 was incorrectly implemented for short keys. The C version has
9238 been fixed, but is untested. The assembler versions are also fixed, but
9239 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9240 to regenerate it if needed.
9241 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9242 Hagino <itojun@kame.net>]
9244 *) File was opened incorrectly in randfile.c.
9245 [Ulf Möller <ulf@fitug.de>]
9247 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9248 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9249 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9250 al: it's just almost always a UTCTime. Note this patch adds new error
9251 codes so do a "make errors" if there are problems.
9254 *) Correct Linux 1 recognition in config.
9255 [Ulf Möller <ulf@fitug.de>]
9257 *) Remove pointless MD5 hash when using DSA keys in ca.
9258 [Anonymous <nobody@replay.com>]
9260 *) Generate an error if given an empty string as a cert directory. Also
9261 generate an error if handed NULL (previously returned 0 to indicate an
9262 error, but didn't set one).
9263 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9265 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9268 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9269 parameters. This was causing a warning which killed off the Win32 compile.
9272 *) Remove C++ style comments from crypto/bn/bn_local.h.
9273 [Neil Costigan <neil.costigan@celocom.com>]
9275 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9276 based on a text string, looking up short and long names and finally
9277 "dot" format. The "dot" format stuff didn't work. Added new function
9278 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9279 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9280 OID is not part of the table.
9283 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9284 X509_LOOKUP_by_alias().
9287 *) Sort openssl functions by name.
9290 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9291 encryption from sample DSA keys (in case anyone is interested the password
9295 *) Make _all_ *_free functions accept a NULL pointer.
9296 [Frans Heymans <fheymans@isaserver.be>]
9298 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9300 [Anonymous <nobody@replay.com>]
9302 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9303 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9305 *) Don't blow it for numeric -newkey arguments to apps/req.
9306 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9308 *) Temp key "for export" tests were wrong in s3_srvr.c.
9309 [Anonymous <nobody@replay.com>]
9311 *) Add prototype for temp key callback functions
9312 SSL_CTX_set_tmp_{rsa,dh}_callback().
9315 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9316 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9319 *) X509_name_add_entry() freed the wrong thing after an error.
9320 [Arne Ansper <arne@ats.cyber.ee>]
9322 *) rsa_eay.c would attempt to free a NULL context.
9323 [Arne Ansper <arne@ats.cyber.ee>]
9325 *) BIO_s_socket() had a broken should_retry() on Windoze.
9326 [Arne Ansper <arne@ats.cyber.ee>]
9328 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9329 [Arne Ansper <arne@ats.cyber.ee>]
9331 *) Make sure the already existing X509_STORE->depth variable is initialized
9332 in X509_STORE_new(), but document the fact that this variable is still
9333 unused in the certificate verification process.
9334 [Ralf S. Engelschall]
9336 *) Fix the various library and apps files to free up pkeys obtained from
9337 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9340 *) Fix reference counting in X509_PUBKEY_get(). This makes
9341 demos/maurice/example2.c work, amongst others, probably.
9342 [Steve Henson and Ben Laurie]
9344 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9345 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9346 are no longer created. This way we have a single and consistent command
9347 line interface `openssl <command>', similar to `cvs <command>'.
9348 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9350 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9351 BIT STRING wrapper always have zero unused bits.
9354 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9357 *) Make the top-level INSTALL documentation easier to understand.
9360 *) Makefiles updated to exit if an error occurs in a sub-directory
9361 make (including if user presses ^C) [Paul Sutton]
9363 *) Make Montgomery context stuff explicit in RSA data structure.
9366 *) Fix build order of pem and err to allow for generated pem.h.
9369 *) Fix renumbering bug in X509_NAME_delete_entry().
9372 *) Enhanced the err-ins.pl script so it makes the error library number
9373 global and can add a library name. This is needed for external ASN1 and
9374 other error libraries.
9377 *) Fixed sk_insert which never worked properly.
9380 *) Fix ASN1 macros so they can handle indefinite length construted
9381 EXPLICIT tags. Some non standard certificates use these: they can now
9385 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9386 into a single doc/ssleay.txt bundle. This way the information is still
9387 preserved but no longer messes up this directory. Now it's new room for
9388 the new set of documenation files.
9389 [Ralf S. Engelschall]
9391 *) SETs were incorrectly DER encoded. This was a major pain, because they
9392 shared code with SEQUENCEs, which aren't coded the same. This means that
9393 almost everything to do with SETs or SEQUENCEs has either changed name or
9394 number of arguments.
9395 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9397 *) Fix test data to work with the above.
9400 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9401 was already fixed by Eric for 0.9.1 it seems.
9402 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9404 *) Autodetect FreeBSD3.
9407 *) Fix various bugs in Configure. This affects the following platforms:
9411 unixware-2.0-pentium
9415 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9416 before they are needed.
9419 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9423 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9425 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9426 changed SSLeay to OpenSSL in version strings.
9427 [Ralf S. Engelschall]
9429 *) Some fixups to the top-level documents.
9432 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9433 because the symlink to include/ was missing.
9434 [Ralf S. Engelschall]
9436 *) Incorporated the popular no-RSA/DSA-only patches
9437 which allow to compile a RSA-free SSLeay.
9438 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9440 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9441 when "ssleay" is still not found.
9442 [Ralf S. Engelschall]
9444 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9445 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9447 *) Updated the README file.
9448 [Ralf S. Engelschall]
9450 *) Added various .cvsignore files in the CVS repository subdirs
9451 to make a "cvs update" really silent.
9452 [Ralf S. Engelschall]
9454 *) Recompiled the error-definition header files and added
9455 missing symbols to the Win32 linker tables.
9456 [Ralf S. Engelschall]
9458 *) Cleaned up the top-level documents;
9459 o new files: CHANGES and LICENSE
9460 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9461 o merged COPYRIGHT into LICENSE
9462 o removed obsolete TODO file
9463 o renamed MICROSOFT to INSTALL.W32
9464 [Ralf S. Engelschall]
9466 *) Removed dummy files from the 0.9.1b source tree:
9467 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9468 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9469 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9470 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9471 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9472 [Ralf S. Engelschall]
9474 *) Added various platform portability fixes.
9477 *) The Genesis of the OpenSSL rpject:
9478 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9479 Young and Tim J. Hudson created while they were working for C2Net until
9481 [The OpenSSL Project]
9484 Changes between 0.9.0b and 0.9.1b [not released]
9486 *) Updated a few CA certificates under certs/
9489 *) Changed some BIGNUM api stuff.
9492 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9493 DGUX x86, Linux Alpha, etc.
9496 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9497 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9501 *) Add -strparse option to asn1pars program which parses nested
9503 [Dr Stephen Henson <shenson@bigfoot.com>]
9505 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9508 *) DSA fix for "ca" program.
9511 *) Added "-genkey" option to "dsaparam" program.
9514 *) Added RIPE MD160 (rmd160) message digest.
9517 *) Added -a (all) option to "ssleay version" command.
9520 *) Added PLATFORM define which is the id given to Configure.
9523 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9526 *) Extended the ASN.1 parser routines.
9529 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9532 *) Added a BN_CTX to the BN library.
9535 *) Fixed the weak key values in DES library
9538 *) Changed API in EVP library for cipher aliases.
9541 *) Added support for RC2/64bit cipher.
9544 *) Converted the lhash library to the crypto/mem.c functions.
9547 *) Added more recognized ASN.1 object ids.
9550 *) Added more RSA padding checks for SSL/TLS.
9553 *) Added BIO proxy/filter functionality.
9556 *) Added extra_certs to SSL_CTX which can be used
9557 send extra CA certificates to the client in the CA cert chain sending
9558 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9561 *) Now Fortezza is denied in the authentication phase because
9562 this is key exchange mechanism is not supported by SSLeay at all.
9565 *) Additional PKCS1 checks.
9568 *) Support the string "TLSv1" for all TLS v1 ciphers.
9571 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9572 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9575 *) Fixed a few memory leaks.
9578 *) Fixed various code and comment typos.
9581 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9582 bytes sent in the client random.
9583 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob