5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Improve forward-security support: add functions
9 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
10 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
12 for use by SSL/TLS servers; the callback function will be called whenever a
13 new session is created, and gets to decide whether the session may be
14 cached to make it resumable (return 0) or not (return 1). (As by the
15 SSL/TLS protocol specifications, the session_id sent by the server will be
16 empty to indicate that the session is not resumable; also, the server will
17 not generate RFC 4507 (RFC 5077) session tickets.)
19 A simple reasonable callback implementation is to return is_forward_secure.
20 This parameter will be set to 1 or 0 depending on the ciphersuite selected
21 by the SSL/TLS server library, indicating whether it can provide forward
23 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
25 *) Add Next Protocol Negotiation,
26 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
27 disabled with a no-npn flag to config or Configure. Code donated
29 [Adam Langley <agl@google.com> and Ben Laurie]
31 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
32 all platforms. Move ssize_t definition from e_os.h to the public
33 header file e_os2.h as it now appears in public header file cms.h
36 *) New function OPENSSL_gmtime_diff to find the difference in days
37 and seconds between two tm structures. This will be used to provide
38 additional functionality for ASN1_TIME.
41 *) New -sigopt option to the ca, req and x509 utilities. Additional
42 signature parameters can be passed using this option and in
46 *) Add RSA PSS signing function. This will generate and set the
47 appropriate AlgorithmIdentifiers for PSS based on those in the
48 corresponding EVP_MD_CTX structure. No application support yet.
51 *) Support for companion algorithm specific ASN1 signing routines.
52 New function ASN1_item_sign_ctx() signs a pre-initialised
53 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
54 the appropriate parameters.
57 *) Add new algorithm specific ASN1 verification initialisation function
58 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
59 handling will be the same no matter what EVP_PKEY_METHOD is used.
60 Add a PSS handler to support verification of PSS signatures: checked
61 against a number of sample certificates.
64 *) Add signature printing for PSS. Add PSS OIDs.
65 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
67 *) Add algorithm specific signature printing. An individual ASN1 method
68 can now print out signatures instead of the standard hex dump.
70 More complex signatures (e.g. PSS) can print out more meaningful
71 information. Include DSA version that prints out the signature
75 *) Add -trusted_first option which attempts to find certificates in the
76 trusted store even if an untrusted chain is also supplied.
79 *) Initial experimental support for explicitly trusted non-root CAs.
80 OpenSSL still tries to build a complete chain to a root but if an
81 intermediate CA has a trust setting included that is used. The first
82 setting is used: whether to trust or reject.
85 *) New -verify_name option in command line utilities to set verification
89 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
90 Add CMAC pkey methods.
93 *) Experiemental regnegotiation in s_server -www mode. If the client
94 browses /reneg connection is renegotiated. If /renegcert it is
95 renegotiated requesting a certificate.
98 *) Add an "external" session cache for debugging purposes to s_server. This
99 should help trace issues which normally are only apparent in deployed
100 multi-process servers.
103 *) Experiemental password based recipient info support for CMS library:
104 implementing RFC3211.
107 *) Split password based encryption into PBES2 and PBKDF2 functions. This
108 neatly separates the code into cipher and PBE sections and is required
109 for some algorithms that split PBES2 into separate pieces (such as
113 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
114 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
115 BIO_set_cipher() and some obscure PEM functions were changed so they
116 can now return an error. The RAND changes required a change to the
117 RAND_METHOD structure.
120 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
121 a gcc attribute to warn if the result of a function is ignored. This
122 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
123 whose return value is often ignored.
126 Changes between 1.0.0b and 1.0.1 [xx XXX xxxx]
128 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
129 elliptic curve NIST-P224 with constant-time single point multiplication on
130 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
131 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
132 flexible implementations).
134 The implementation requires support for the nonstandard type __uint128_t,
135 and so is disabled by default. To include this in your build of OpenSSL,
136 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
137 and run "make depend" (or "make update").
138 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
140 *) Permit abbreviated handshakes when renegotiating using the function
141 SSL_renegotiate_abbreviated().
142 [Robin Seggelmann <seggelmann@fh-muenster.de>]
144 *) Add call to ENGINE_register_all_complete() to
145 ENGINE_load_builtin_engines(), so some implementations get used
146 automatically instead of needing explicit application support.
149 *) Add support for TLS key exporter as described in RFC5705.
150 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
152 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
153 a few changes are required:
155 Add SSL_OP_NO_TLSv1_1 flag.
157 Update version checking logic to handle version 1.1.
158 Add explicit IV handling (ported from DTLS code).
159 Add command line options to s_client/s_server.
162 Changes between 1.0.0a and 1.0.0b [xx XXX xxxx]
164 *) Fix WIN32 build system to correctly link an ENGINE directory into
168 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
170 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
172 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
174 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
176 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
177 context. The operation can be customised via the ctrl mechanism in
178 case ENGINEs want to include additional functionality.
181 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
184 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
185 output hashes compatible with older versions of OpenSSL.
186 [Willy Weisz <weisz@vcpc.univie.ac.at>]
188 *) Fix compression algorithm handling: if resuming a session use the
189 compression algorithm of the resumed session instead of determining
190 it from client hello again. Don't allow server to change algorithm.
193 *) Add load_crls() function to apps tidying load_certs() too. Add option
194 to verify utility to allow additional CRLs to be included.
197 *) Update OCSP request code to permit adding custom headers to the request:
198 some responders need this.
201 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
203 [Julia Lawall <julia@diku.dk>]
205 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
206 needlessly dereferenced structures, used obsolete functions and
207 didn't handle all updated verify codes correctly.
210 *) Disable MD2 in the default configuration.
213 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
214 indicate the initial BIO being pushed or popped. This makes it possible
215 to determine whether the BIO is the one explicitly called or as a result
216 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
217 it handles reference counts correctly and doesn't zero out the I/O bio
218 when it is not being explicitly popped. WARNING: applications which
219 included workarounds for the old buggy behaviour will need to be modified
220 or they could free up already freed BIOs.
223 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
224 renaming to all platforms (within the 0.9.8 branch, this was
225 done conditionally on Netware platforms to avoid a name clash).
226 [Guenter <lists@gknw.net>]
228 *) Add ECDHE and PSK support to DTLS.
229 [Michael Tuexen <tuexen@fh-muenster.de>]
231 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
235 *) Add "missing" function EVP_MD_flags() (without this the only way to
236 retrieve a digest flags is by accessing the structure directly. Update
237 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
238 or cipher is registered as in the "from" argument. Print out all
239 registered digests in the dgst usage message instead of manually
240 attempting to work them out.
243 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
244 this allows the use of compression and extensions. Change default cipher
245 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
246 by default unless an application cipher string requests it.
249 *) Alter match criteria in PKCS12_parse(). It used to try to use local
250 key ids to find matching certificates and keys but some PKCS#12 files
251 don't follow the (somewhat unwritten) rules and this strategy fails.
252 Now just gather all certificates together and the first private key
253 then look for the first certificate that matches the key.
256 *) Support use of registered digest and cipher names for dgst and cipher
257 commands instead of having to add each one as a special case. So now
264 openssl dgst -sha256 foo
266 and this works for ENGINE based algorithms too.
270 *) Update Gost ENGINE to support parameter files.
271 [Victor B. Wagner <vitus@cryptocom.ru>]
273 *) Support GeneralizedTime in ca utility.
274 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
276 *) Enhance the hash format used for certificate directory links. The new
277 form uses the canonical encoding (meaning equivalent names will work
278 even if they aren't identical) and uses SHA1 instead of MD5. This form
279 is incompatible with the older format and as a result c_rehash should
280 be used to rebuild symbolic links.
283 *) Make PKCS#8 the default write format for private keys, replacing the
284 traditional format. This form is standardised, more secure and doesn't
285 include an implicit MD5 dependency.
288 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
289 committed to OpenSSL should pass this lot as a minimum.
292 *) Add session ticket override functionality for use by EAP-FAST.
293 [Jouni Malinen <j@w1.fi>]
295 *) Modify HMAC functions to return a value. Since these can be implemented
296 in an ENGINE errors can occur.
299 *) Type-checked OBJ_bsearch_ex.
302 *) Type-checked OBJ_bsearch. Also some constification necessitated
303 by type-checking. Still to come: TXT_DB, bsearch(?),
304 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
308 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
309 seconds to a tm structure directly, instead of going through OS
310 specific date routines. This avoids any issues with OS routines such
311 as the year 2038 bug. New *_adj() functions for ASN1 time structures
312 and X509_time_adj_ex() to cover the extended range. The existing
313 X509_time_adj() is still usable and will no longer have any date issues.
316 *) Delta CRL support. New use deltas option which will attempt to locate
317 and search any appropriate delta CRLs available.
319 This work was sponsored by Google.
322 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
323 code and add additional score elements. Validate alternate CRL paths
324 as part of the CRL checking and indicate a new error "CRL path validation
325 error" in this case. Applications wanting additional details can use
326 the verify callback and check the new "parent" field. If this is not
327 NULL CRL path validation is taking place. Existing applications wont
328 see this because it requires extended CRL support which is off by
331 This work was sponsored by Google.
334 *) Support for freshest CRL extension.
336 This work was sponsored by Google.
339 *) Initial indirect CRL support. Currently only supported in the CRLs
340 passed directly and not via lookup. Process certificate issuer
341 CRL entry extension and lookup CRL entries by bother issuer name
342 and serial number. Check and process CRL issuer entry in IDP extension.
344 This work was sponsored by Google.
347 *) Add support for distinct certificate and CRL paths. The CRL issuer
348 certificate is validated separately in this case. Only enabled if
349 an extended CRL support flag is set: this flag will enable additional
350 CRL functionality in future.
352 This work was sponsored by Google.
355 *) Add support for policy mappings extension.
357 This work was sponsored by Google.
360 *) Fixes to pathlength constraint, self issued certificate handling,
361 policy processing to align with RFC3280 and PKITS tests.
363 This work was sponsored by Google.
366 *) Support for name constraints certificate extension. DN, email, DNS
367 and URI types are currently supported.
369 This work was sponsored by Google.
372 *) To cater for systems that provide a pointer-based thread ID rather
373 than numeric, deprecate the current numeric thread ID mechanism and
374 replace it with a structure and associated callback type. This
375 mechanism allows a numeric "hash" to be extracted from a thread ID in
376 either case, and on platforms where pointers are larger than 'long',
377 mixing is done to help ensure the numeric 'hash' is usable even if it
378 can't be guaranteed unique. The default mechanism is to use "&errno"
379 as a pointer-based thread ID to distinguish between threads.
381 Applications that want to provide their own thread IDs should now use
382 CRYPTO_THREADID_set_callback() to register a callback that will call
383 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
385 Note that ERR_remove_state() is now deprecated, because it is tied
386 to the assumption that thread IDs are numeric. ERR_remove_state(0)
387 to free the current thread's error state should be replaced by
388 ERR_remove_thread_state(NULL).
390 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
391 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
392 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
393 application was previously providing a numeric thread callback that
394 was inappropriate for distinguishing threads, then uniqueness might
395 have been obtained with &errno that happened immediately in the
396 intermediate development versions of OpenSSL; this is no longer the
397 case, the numeric thread callback will now override the automatic use
399 [Geoff Thorpe, with help from Bodo Moeller]
401 *) Initial support for different CRL issuing certificates. This covers a
402 simple case where the self issued certificates in the chain exist and
403 the real CRL issuer is higher in the existing chain.
405 This work was sponsored by Google.
408 *) Removed effectively defunct crypto/store from the build.
411 *) Revamp of STACK to provide stronger type-checking. Still to come:
412 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
413 ASN1_STRING, CONF_VALUE.
416 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
417 RAM on SSL connections. This option can save about 34k per idle SSL.
420 *) Revamp of LHASH to provide stronger type-checking. Still to come:
421 STACK, TXT_DB, bsearch, qsort.
424 *) Initial support for Cryptographic Message Syntax (aka CMS) based
425 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
426 support for data, signedData, compressedData, digestedData and
427 encryptedData, envelopedData types included. Scripts to check against
428 RFC4134 examples draft and interop and consistency checks of many
429 content types and variants.
432 *) Add options to enc utility to support use of zlib compression BIO.
435 *) Extend mk1mf to support importing of options and assembly language
436 files from Configure script, currently only included in VC-WIN32.
437 The assembly language rules can now optionally generate the source
438 files from the associated perl scripts.
441 *) Implement remaining functionality needed to support GOST ciphersuites.
442 Interop testing has been performed using CryptoPro implementations.
443 [Victor B. Wagner <vitus@cryptocom.ru>]
445 *) s390x assembler pack.
448 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
452 *) Implement Opaque PRF Input TLS extension as specified in
453 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
454 official specification yet and no extension type assignment by
455 IANA exists, this extension (for now) will have to be explicitly
456 enabled when building OpenSSL by providing the extension number
457 to use. For example, specify an option
459 -DTLSEXT_TYPE_opaque_prf_input=0x9527
461 to the "config" or "Configure" script to enable the extension,
462 assuming extension number 0x9527 (which is a completely arbitrary
463 and unofficial assignment based on the MD5 hash of the Internet
464 Draft). Note that by doing so, you potentially lose
465 interoperability with other TLS implementations since these might
466 be using the same extension number for other purposes.
468 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
469 opaque PRF input value to use in the handshake. This will create
470 an interal copy of the length-'len' string at 'src', and will
471 return non-zero for success.
473 To get more control and flexibility, provide a callback function
476 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
477 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
481 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
484 Callback function 'cb' will be called in handshakes, and is
485 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
486 Argument 'arg' is for application purposes (the value as given to
487 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
488 be provided to the callback function). The callback function
489 has to return non-zero to report success: usually 1 to use opaque
490 PRF input just if possible, or 2 to enforce use of the opaque PRF
491 input. In the latter case, the library will abort the handshake
492 if opaque PRF input is not successfully negotiated.
494 Arguments 'peerinput' and 'len' given to the callback function
495 will always be NULL and 0 in the case of a client. A server will
496 see the client's opaque PRF input through these variables if
497 available (NULL and 0 otherwise). Note that if the server
498 provides an opaque PRF input, the length must be the same as the
499 length of the client's opaque PRF input.
501 Note that the callback function will only be called when creating
502 a new session (session resumption can resume whatever was
503 previously negotiated), and will not be called in SSL 2.0
504 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
505 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
506 for applications that need to enforce opaque PRF input.
510 *) Update ssl code to support digests other than SHA1+MD5 for handshake
513 [Victor B. Wagner <vitus@cryptocom.ru>]
515 *) Add RFC4507 support to OpenSSL. This includes the corrections in
516 RFC4507bis. The encrypted ticket format is an encrypted encoded
517 SSL_SESSION structure, that way new session features are automatically
520 If a client application caches session in an SSL_SESSION structure
521 support is transparent because tickets are now stored in the encoded
524 The SSL_CTX structure automatically generates keys for ticket
525 protection in servers so again support should be possible
526 with no application modification.
528 If a client or server wishes to disable RFC4507 support then the option
529 SSL_OP_NO_TICKET can be set.
531 Add a TLS extension debugging callback to allow the contents of any client
532 or server extensions to be examined.
534 This work was sponsored by Google.
537 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
538 OpenSSL should now compile cleanly on gcc 4.2
539 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
541 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
542 support including streaming MAC support: this is required for GOST
544 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
546 *) Add option -stream to use PKCS#7 streaming in smime utility. New
547 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
548 to output in BER and PEM format.
551 *) Experimental support for use of HMAC via EVP_PKEY interface. This
552 allows HMAC to be handled via the EVP_DigestSign*() interface. The
553 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
554 ENGINE support for HMAC keys which are unextractable. New -mac and
555 -macopt options to dgst utility.
558 *) New option -sigopt to dgst utility. Update dgst to use
559 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
560 alternative signing paramaters such as X9.31 or PSS in the dgst
564 *) Change ssl_cipher_apply_rule(), the internal function that does
565 the work each time a ciphersuite string requests enabling
566 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
567 removing ("!foo+bar") a class of ciphersuites: Now it maintains
568 the order of disabled ciphersuites such that those ciphersuites
569 that most recently went from enabled to disabled not only stay
570 in order with respect to each other, but also have higher priority
571 than other disabled ciphersuites the next time ciphersuites are
574 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
575 the same ciphersuites as with "HIGH" alone, but in a specific
576 order where the PSK ciphersuites come first (since they are the
577 most recently disabled ciphersuites when "HIGH" is parsed).
579 Also, change ssl_create_cipher_list() (using this new
580 funcionality) such that between otherwise identical
581 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
585 *) Change ssl_create_cipher_list() so that it automatically
586 arranges the ciphersuites in reasonable order before starting
587 to process the rule string. Thus, the definition for "DEFAULT"
588 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
589 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
590 This makes it much easier to arrive at a reasonable default order
591 in applications for which anonymous ciphers are OK (meaning
592 that you can't actually use DEFAULT).
593 [Bodo Moeller; suggested by Victor Duchovni]
595 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
596 processing) into multiple integers instead of setting
597 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
598 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
599 (These masks as well as the individual bit definitions are hidden
600 away into the non-exported interface ssl/ssl_locl.h, so this
601 change to the definition of the SSL_CIPHER structure shouldn't
602 affect applications.) This give us more bits for each of these
603 categories, so there is no longer a need to coagulate AES128 and
604 AES256 into a single algorithm bit, and to coagulate Camellia128
605 and Camellia256 into a single algorithm bit, which has led to all
608 Thus, among other things, the kludge introduced in 0.9.7m and
609 0.9.8e for masking out AES256 independently of AES128 or masking
610 out Camellia256 independently of AES256 is not needed here in 0.9.9.
612 With the change, we also introduce new ciphersuite aliases that
613 so far were missing: "AES128", "AES256", "CAMELLIA128", and
617 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
618 Use the leftmost N bytes of the signature input if the input is
619 larger than the prime q (with N being the size in bytes of q).
622 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
623 it yet and it is largely untested.
626 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
629 *) Initial incomplete changes to avoid need for function casts in OpenSSL
630 some compilers (gcc 4.2 and later) reject their use. Safestack is
631 reimplemented. Update ASN1 to avoid use of legacy functions.
634 *) Win32/64 targets are linked with Winsock2.
637 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
638 to external functions. This can be used to increase CRL handling
639 efficiency especially when CRLs are very large by (for example) storing
640 the CRL revoked certificates in a database.
643 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
644 new CRLs added to a directory can be used. New command line option
645 -verify_return_error to s_client and s_server. This causes real errors
646 to be returned by the verify callback instead of carrying on no matter
647 what. This reflects the way a "real world" verify callback would behave.
650 *) GOST engine, supporting several GOST algorithms and public key formats.
651 Kindly donated by Cryptocom.
654 *) Partial support for Issuing Distribution Point CRL extension. CRLs
655 partitioned by DP are handled but no indirect CRL or reason partitioning
656 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
657 selected via a scoring technique which handles IDP and AKID in CRLs.
660 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
661 will ultimately be used for all verify operations: this will remove the
662 X509_STORE dependency on certificate verification and allow alternative
663 lookup methods. X509_STORE based implementations of these two callbacks.
666 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
667 Modify get_crl() to find a valid (unexpired) CRL if possible.
670 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
671 this would be called X509_CRL_cmp() but that name is already used by
672 a function that just compares CRL issuer names. Cache several CRL
673 extensions in X509_CRL structure and cache CRLDP in X509.
676 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
677 this maps equivalent X509_NAME structures into a consistent structure.
678 Name comparison can then be performed rapidly using memcmp().
681 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
685 *) Allow digests to supply their own micalg string for S/MIME type using
686 the ctrl EVP_MD_CTRL_MICALG.
689 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
690 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
691 ctrl. It can then customise the structure before and/or after signing
695 *) New function OBJ_add_sigid() to allow application defined signature OIDs
696 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
697 to free up any added signature OIDs.
700 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
701 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
702 digest and cipher tables. New options added to openssl utility:
703 list-message-digest-algorithms and list-cipher-algorithms.
706 *) Change the array representation of binary polynomials: the list
707 of degrees of non-zero coefficients is now terminated with -1.
708 Previously it was terminated with 0, which was also part of the
709 value; thus, the array representation was not applicable to
710 polynomials where t^0 has coefficient zero. This change makes
711 the array representation useful in a more general context.
714 *) Various modifications and fixes to SSL/TLS cipher string
715 handling. For ECC, the code now distinguishes between fixed ECDH
716 with RSA certificates on the one hand and with ECDSA certificates
717 on the other hand, since these are separate ciphersuites. The
718 unused code for Fortezza ciphersuites has been removed.
720 For consistency with EDH, ephemeral ECDH is now called "EECDH"
721 (not "ECDHE"). For consistency with the code for DH
722 certificates, use of ECDH certificates is now considered ECDH
723 authentication, not RSA or ECDSA authentication (the latter is
724 merely the CA's signing algorithm and not actively used in the
727 The temporary ciphersuite alias "ECCdraft" is no longer
728 available, and ECC ciphersuites are no longer excluded from "ALL"
729 and "DEFAULT". The following aliases now exist for RFC 4492
730 ciphersuites, most of these by analogy with the DH case:
732 kECDHr - ECDH cert, signed with RSA
733 kECDHe - ECDH cert, signed with ECDSA
734 kECDH - ECDH cert (signed with either RSA or ECDSA)
735 kEECDH - ephemeral ECDH
736 ECDH - ECDH cert or ephemeral ECDH
742 AECDH - anonymous ECDH
743 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
747 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
748 Use correct micalg parameters depending on digest(s) in signed message.
751 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
752 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
755 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
756 an engine to register a method. Add ENGINE lookups for methods and
757 functional reference processing.
760 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
761 EVP_{Sign,Verify}* which allow an application to customise the signature
765 *) New -resign option to smime utility. This adds one or more signers
766 to an existing PKCS#7 signedData structure. Also -md option to use an
767 alternative message digest algorithm for signing.
770 *) Tidy up PKCS#7 routines and add new functions to make it easier to
771 create PKCS7 structures containing multiple signers. Update smime
772 application to support multiple signers.
775 *) New -macalg option to pkcs12 utility to allow setting of an alternative
779 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
780 Reorganize PBE internals to lookup from a static table using NIDs,
781 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
782 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
783 PRF which will be automatically used with PBES2.
786 *) Replace the algorithm specific calls to generate keys in "req" with the
790 *) Update PKCS#7 enveloped data routines to use new API. This is now
791 supported by any public key method supporting the encrypt operation. A
792 ctrl is added to allow the public key algorithm to examine or modify
793 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
797 *) Add a ctrl to asn1 method to allow a public key algorithm to express
798 a default digest type to use. In most cases this will be SHA1 but some
799 algorithms (such as GOST) need to specify an alternative digest. The
800 return value indicates how strong the prefernce is 1 means optional and
801 2 is mandatory (that is it is the only supported type). Modify
802 ASN1_item_sign() to accept a NULL digest argument to indicate it should
803 use the default md. Update openssl utilities to use the default digest
804 type for signing if it is not explicitly indicated.
807 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
808 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
809 signing method from the key type. This effectively removes the link
810 between digests and public key types.
813 *) Add an OID cross reference table and utility functions. Its purpose is to
814 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
815 rsaEncryption. This will allow some of the algorithm specific hackery
816 needed to use the correct OID to be removed.
819 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
820 structures for PKCS7_sign(). They are now set up by the relevant public
824 *) Add provisional EC pkey method with support for ECDSA and ECDH.
827 *) Add support for key derivation (agreement) in the API, DH method and
831 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
832 public and private key formats. As a side effect these add additional
833 command line functionality not previously available: DSA signatures can be
834 generated and verified using pkeyutl and DH key support and generation in
839 [Oliver Tappe <zooey@hirschkaefer.de>]
841 *) New make target "install_html_docs" installs HTML renditions of the
843 [Oliver Tappe <zooey@hirschkaefer.de>]
845 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
846 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
847 support key and parameter generation and add initial key generation
848 functionality for RSA.
851 *) Add functions for main EVP_PKEY_method operations. The undocumented
852 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
853 EVP_PKEY_{encrypt,decrypt}_old.
856 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
857 key API, doesn't do much yet.
860 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
861 public key algorithms. New option to openssl utility:
862 "list-public-key-algorithms" to print out info.
865 *) Implement the Supported Elliptic Curves Extension for
866 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
869 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
870 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
873 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
874 utilities such as rsa, dsa, dsaparam etc except they process any key
878 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
879 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
880 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
884 *) Initial support for pluggable public key ASN1.
885 De-spaghettify the public key ASN1 handling. Move public and private
886 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
887 algorithm specific handling to a single module within the relevant
888 algorithm directory. Add functions to allow (near) opaque processing
889 of public and private key structures.
892 *) Implement the Supported Point Formats Extension for
893 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
896 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
897 for the psk identity [hint] and the psk callback functions to the
898 SSL_SESSION, SSL and SSL_CTX structure.
901 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
905 SSL_CTX_use_psk_identity_hint
906 SSL_get_psk_identity_hint
908 SSL_use_psk_identity_hint
910 [Mika Kousa and Pasi Eronen of Nokia Corporation]
912 *) Add RFC 3161 compliant time stamp request creation, response generation
913 and response verification functionality.
914 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
916 *) Add initial support for TLS extensions, specifically for the server_name
917 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
918 have new members for a host name. The SSL data structure has an
919 additional member SSL_CTX *initial_ctx so that new sessions can be
920 stored in that context to allow for session resumption, even after the
921 SSL has been switched to a new SSL_CTX in reaction to a client's
922 server_name extension.
924 New functions (subject to change):
927 SSL_get_servername_type()
930 New CTRL codes and macros (subject to change):
932 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
933 - SSL_CTX_set_tlsext_servername_callback()
934 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
935 - SSL_CTX_set_tlsext_servername_arg()
936 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
938 openssl s_client has a new '-servername ...' option.
940 openssl s_server has new options '-servername_host ...', '-cert2 ...',
941 '-key2 ...', '-servername_fatal' (subject to change). This allows
942 testing the HostName extension for a specific single host name ('-cert'
943 and '-key' remain fallbacks for handshakes without HostName
944 negotiation). If the unrecogninzed_name alert has to be sent, this by
945 default is a warning; it becomes fatal with the '-servername_fatal'
948 [Peter Sylvester, Remy Allais, Christophe Renou]
950 *) Whirlpool hash implementation is added.
953 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
954 bn(64,32). Because of instruction set limitations it doesn't have
955 any negative impact on performance. This was done mostly in order
956 to make it possible to share assembler modules, such as bn_mul_mont
957 implementations, between 32- and 64-bit builds without hassle.
960 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
961 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
965 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
966 dedicated Montgomery multiplication procedure, is introduced.
967 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
968 "64-bit" performance on certain 32-bit targets.
971 *) New option SSL_OP_NO_COMP to disable use of compression selectively
972 in SSL structures. New SSL ctrl to set maximum send fragment size.
973 Save memory by seeting the I/O buffer sizes dynamically instead of
974 using the maximum available value.
977 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
978 in addition to the text details.
981 *) Very, very preliminary EXPERIMENTAL support for printing of general
982 ASN1 structures. This currently produces rather ugly output and doesn't
983 handle several customised structures at all.
986 *) Integrated support for PVK file format and some related formats such
987 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
988 these in the 'rsa' and 'dsa' utilities.
991 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
994 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
995 place for the (very old) "NETSCAPE" format certificates which are now
996 handled using new ASN1 code equivalents.
999 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1000 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1001 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1004 *) Modify CRL distribution points extension code to print out previously
1005 unsupported fields. Enhance extension setting code to allow setting of
1009 *) Add print and set support for Issuing Distribution Point CRL extension.
1012 *) Change 'Configure' script to enable Camellia by default.
1015 Changes between 0.9.8o and 0.9.8p [xx XXX xxxx]
1017 *) Don't reencode certificate when calculating signature: cache and use
1018 the original encoding instead. This makes signature verification of
1019 some broken encodings work correctly.
1022 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1023 is also one of the inputs.
1024 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1026 *) Don't repeatedly append PBE algorithms to table if they already exist.
1027 Sort table on each new add. This effectively makes the table read only
1028 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1032 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1034 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1037 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1038 access or freeing data twice (CVE-2010-0742)
1039 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1041 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1042 common in certificates and some applications which only call
1043 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1047 Reduce copying into .apps and .test in makevms.com
1048 Don't try to use blank CA certificate in CA.com
1049 Allow use of C files from original directories in maketests.com
1050 [Steven M. Schweda" <sms@antinode.info>]
1052 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1054 *) When rejecting SSL/TLS records due to an incorrect version number, never
1055 update s->server with a new major version number. As of
1056 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1057 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1058 the previous behavior could result in a read attempt at NULL when
1059 receiving specific incorrect SSL/TLS records once record payload
1060 protection is active. (CVE-2010-0740)
1061 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1063 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1064 could be crashed if the relevant tables were not present (e.g. chrooted).
1065 [Tomas Hoger <thoger@redhat.com>]
1067 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1069 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1070 [Martin Olsson, Neel Mehta]
1072 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1073 accommodate for stack sorting, always a write lock!).
1076 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1077 excessive delays in the RAND_poll(): over a minute. As a workaround
1078 include a time check in the inner Heap32Next loop too.
1081 *) The code that handled flushing of data in SSL/TLS originally used the
1082 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1083 the problem outlined in PR#1949. The fix suggested there however can
1084 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1085 of Apache). So instead simplify the code to flush unconditionally.
1086 This should be fine since flushing with no data to flush is a no op.
1089 *) Handle TLS versions 2.0 and later properly and correctly use the
1090 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1091 off ancient servers have a habit of sticking around for a while...
1094 *) Modify compression code so it frees up structures without using the
1095 ex_data callbacks. This works around a problem where some applications
1096 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1097 restarting) then use compression (e.g. SSL with compression) later.
1098 This results in significant per-connection memory leaks and
1099 has caused some security issues including CVE-2008-1678 and
1103 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1104 change when encrypting or decrypting.
1107 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1108 connect and renegotiate with servers which do not support RI.
1109 Until RI is more widely deployed this option is enabled by default.
1112 *) Add "missing" ssl ctrls to clear options and mode.
1115 *) If client attempts to renegotiate and doesn't support RI respond with
1116 a no_renegotiation alert as required by RFC5746. Some renegotiating
1117 TLS clients will continue a connection gracefully when they receive
1118 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1119 waiting for a server hello which it will never receive. Now we treat a
1120 received no_renegotiation alert as a fatal error. This is because
1121 applications requesting a renegotiation might well expect it to succeed
1122 and would have no code in place to handle the server denying it so the
1123 only safe thing to do is to terminate the connection.
1126 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1127 peer supports secure renegotiation and 0 otherwise. Print out peer
1128 renegotiation support in s_client/s_server.
1131 *) Replace the highly broken and deprecated SPKAC certification method with
1132 the updated NID creation version. This should correctly handle UTF8.
1135 *) Implement RFC5746. Re-enable renegotiation but require the extension
1136 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1137 turns out to be a bad idea. It has been replaced by
1138 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1139 SSL_CTX_set_options(). This is really not recommended unless you
1140 know what you are doing.
1141 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1143 *) Fixes to stateless session resumption handling. Use initial_ctx when
1144 issuing and attempting to decrypt tickets in case it has changed during
1145 servername handling. Use a non-zero length session ID when attempting
1146 stateless session resumption: this makes it possible to determine if
1147 a resumption has occurred immediately after receiving server hello
1148 (several places in OpenSSL subtly assume this) instead of later in
1152 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1153 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1154 fixes for a few places where the return code is not checked
1156 [Julia Lawall <julia@diku.dk>]
1158 *) Add --strict-warnings option to Configure script to include devteam
1159 warnings in other configurations.
1162 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1163 makes it possible to install openssl libraries in locations which
1164 have names other than "lib", for example "/usr/lib64" which some
1166 [Steve Henson, based on patch from Jeremy Utley]
1168 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1169 X690 8.9.12 and can produce some misleading textual output of OIDs.
1170 [Steve Henson, reported by Dan Kaminsky]
1172 *) Delete MD2 from algorithm tables. This follows the recommendation in
1173 several standards that it is not used in new applications due to
1174 several cryptographic weaknesses. For binary compatibility reasons
1175 the MD2 API is still compiled in by default.
1178 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1182 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1183 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1185 [Guenter <lists@gknw.net>]
1187 *) Fix the server certificate chain building code to use X509_verify_cert(),
1188 it used to have an ad-hoc builder which was unable to cope with anything
1189 other than a simple chain.
1190 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1192 *) Don't check self signed certificate signatures in X509_verify_cert()
1193 by default (a flag can override this): it just wastes time without
1194 adding any security. As a useful side effect self signed root CAs
1195 with non-FIPS digests are now usable in FIPS mode.
1198 *) In dtls1_process_out_of_seq_message() the check if the current message
1199 is already buffered was missing. For every new message was memory
1200 allocated, allowing an attacker to perform an denial of service attack
1201 with sending out of seq handshake messages until there is no memory
1202 left. Additionally every future messege was buffered, even if the
1203 sequence number made no sense and would be part of another handshake.
1204 So only messages with sequence numbers less than 10 in advance will be
1205 buffered. (CVE-2009-1378)
1206 [Robin Seggelmann, discovered by Daniel Mentz]
1208 *) Records are buffered if they arrive with a future epoch to be
1209 processed after finishing the corresponding handshake. There is
1210 currently no limitation to this buffer allowing an attacker to perform
1211 a DOS attack with sending records with future epochs until there is no
1212 memory left. This patch adds the pqueue_size() function to detemine
1213 the size of a buffer and limits the record buffer to 100 entries.
1215 [Robin Seggelmann, discovered by Daniel Mentz]
1217 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1218 parent structure is freed. (CVE-2009-1379)
1221 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1222 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1225 [Ilya O. <vrghost@gmail.com>]
1227 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1229 *) Disable renegotiation completely - this fixes a severe security
1230 problem (CVE-2009-3555) at the cost of breaking all
1231 renegotiation. Renegotiation can be re-enabled by setting
1232 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1233 run-time. This is really not recommended unless you know what
1237 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1239 *) Don't set val to NULL when freeing up structures, it is freed up by
1240 underlying code. If sizeof(void *) > sizeof(long) this can result in
1241 zeroing past the valid field. (CVE-2009-0789)
1242 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1244 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1245 checked correctly. This would allow some invalid signed attributes to
1246 appear to verify correctly. (CVE-2009-0591)
1247 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1249 *) Reject UniversalString and BMPString types with invalid lengths. This
1250 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1251 a legal length. (CVE-2009-0590)
1254 *) Set S/MIME signing as the default purpose rather than setting it
1255 unconditionally. This allows applications to override it at the store
1259 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1260 to handle some structures.
1263 *) Improve efficiency of mem_gets: don't search whole buffer each time
1265 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1267 *) New -hex option for openssl rand.
1270 *) Print out UTF8String and NumericString when parsing ASN1.
1273 *) Support NumericString type for name components.
1276 *) Allow CC in the environment to override the automatically chosen
1277 compiler. Note that nothing is done to ensure flags work with the
1281 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1283 *) Properly check EVP_VerifyFinal() and similar return values
1285 [Ben Laurie, Bodo Moeller, Google Security Team]
1287 *) Enable TLS extensions by default.
1290 *) Allow the CHIL engine to be loaded, whether the application is
1291 multithreaded or not. (This does not release the developer from the
1292 obligation to set up the dynamic locking callbacks.)
1293 [Sander Temme <sander@temme.net>]
1295 *) Use correct exit code if there is an error in dgst command.
1296 [Steve Henson; problem pointed out by Roland Dirlewanger]
1298 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1299 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1302 *) Add experimental JPAKE support, including demo authentication in
1303 s_client and s_server.
1306 *) Set the comparison function in v3_addr_canonize().
1307 [Rob Austein <sra@hactrn.net>]
1309 *) Add support for XMPP STARTTLS in s_client.
1310 [Philip Paeps <philip@freebsd.org>]
1312 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1313 to ensure that even with this option, only ciphersuites in the
1314 server's preference list will be accepted. (Note that the option
1315 applies only when resuming a session, so the earlier behavior was
1316 just about the algorithm choice for symmetric cryptography.)
1319 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1321 *) Fix NULL pointer dereference if a DTLS server received
1322 ChangeCipherSpec as first record (CVE-2009-1386).
1325 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1326 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1329 *) The fix in 0.9.8c that supposedly got rid of unsafe
1330 double-checked locking was incomplete for RSA blinding,
1331 addressing just one layer of what turns out to have been
1332 doubly unsafe triple-checked locking.
1334 So now fix this for real by retiring the MONT_HELPER macro
1335 in crypto/rsa/rsa_eay.c.
1337 [Bodo Moeller; problem pointed out by Marius Schilder]
1339 *) Various precautionary measures:
1341 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1343 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1344 (NB: This would require knowledge of the secret session ticket key
1345 to exploit, in which case you'd be SOL either way.)
1347 - Change bn_nist.c so that it will properly handle input BIGNUMs
1348 outside the expected range.
1350 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1353 [Neel Mehta, Bodo Moeller]
1355 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1356 the load fails. Useful for distros.
1357 [Ben Laurie and the FreeBSD team]
1359 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1362 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1365 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1367 This work was sponsored by Logica.
1370 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1371 keystores. Support for SSL/TLS client authentication too.
1372 Not compiled unless enable-capieng specified to Configure.
1374 This work was sponsored by Logica.
1377 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1378 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1379 attribute creation routines such as certifcate requests and PKCS#12
1383 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1385 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1386 handshake which could lead to a cilent crash as found using the
1387 Codenomicon TLS test suite (CVE-2008-1672)
1388 [Steve Henson, Mark Cox]
1390 *) Fix double free in TLS server name extensions which could lead to
1391 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1394 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1396 Clear the error queue to ensure that error entries left from
1397 older function calls do not interfere with the correct operation.
1398 [Lutz Jaenicke, Erik de Castro Lopo]
1400 *) Remove root CA certificates of commercial CAs:
1402 The OpenSSL project does not recommend any specific CA and does not
1403 have any policy with respect to including or excluding any CA.
1404 Therefore it does not make any sense to ship an arbitrary selection
1405 of root CA certificates with the OpenSSL software.
1408 *) RSA OAEP patches to fix two separate invalid memory reads.
1409 The first one involves inputs when 'lzero' is greater than
1410 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1411 before the beginning of from). The second one involves inputs where
1412 the 'db' section contains nothing but zeroes (there is a one-byte
1413 invalid read after the end of 'db').
1414 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1416 *) Partial backport from 0.9.9-dev:
1418 Introduce bn_mul_mont (dedicated Montgomery multiplication
1419 procedure) as a candidate for BIGNUM assembler implementation.
1420 While 0.9.9-dev uses assembler for various architectures, only
1421 x86_64 is available by default here in the 0.9.8 branch, and
1422 32-bit x86 is available through a compile-time setting.
1424 To try the 32-bit x86 assembler implementation, use Configure
1425 option "enable-montasm" (which exists only for this backport).
1427 As "enable-montasm" for 32-bit x86 disclaims code stability
1428 anyway, in this constellation we activate additional code
1429 backported from 0.9.9-dev for further performance improvements,
1430 namely BN_from_montgomery_word. (To enable this otherwise,
1431 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1433 [Andy Polyakov (backport partially by Bodo Moeller)]
1435 *) Add TLS session ticket callback. This allows an application to set
1436 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1437 values. This is useful for key rollover for example where several key
1438 sets may exist with different names.
1441 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1442 This was broken until now in 0.9.8 releases, such that the only way
1443 a registered ENGINE could be used (assuming it initialises
1444 successfully on the host) was to explicitly set it as the default
1445 for the relevant algorithms. This is in contradiction with 0.9.7
1446 behaviour and the documentation. With this fix, when an ENGINE is
1447 registered into a given algorithm's table of implementations, the
1448 'uptodate' flag is reset so that auto-discovery will be used next
1449 time a new context for that algorithm attempts to select an
1451 [Ian Lister (tweaked by Geoff Thorpe)]
1453 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1454 implemention in the following ways:
1456 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1459 Lack of BER streaming support means one pass streaming processing is
1460 only supported if data is detached: setting the streaming flag is
1461 ignored for embedded content.
1463 CMS support is disabled by default and must be explicitly enabled
1464 with the enable-cms configuration option.
1467 *) Update the GMP engine glue to do direct copies between BIGNUM and
1468 mpz_t when openssl and GMP use the same limb size. Otherwise the
1469 existing "conversion via a text string export" trick is still used.
1470 [Paul Sheer <paulsheer@gmail.com>]
1472 *) Zlib compression BIO. This is a filter BIO which compressed and
1473 uncompresses any data passed through it.
1476 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1477 RFC3394 compatible AES key wrapping.
1480 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1481 sets string data without copying. X509_ALGOR_set0() and
1482 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1483 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1484 from an X509_ATTRIBUTE structure optionally checking it occurs only
1485 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1489 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1490 to get the expected BN_FLG_CONSTTIME behavior.
1491 [Bodo Moeller (Google)]
1495 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1496 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1497 - added some more tests to do_tests.pl
1498 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1499 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1500 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1501 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1502 - various changes to netware.pl to enable gcc-cross builds on Win32
1504 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1505 - various changes to fix missing prototype warnings
1506 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1507 - added AES, WHIRLPOOL and CPUID assembler code to build files
1508 - added missing AES assembler make rules to mk1mf.pl
1509 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1510 [Guenter Knauf <eflash@gmx.net>]
1512 *) Implement certificate status request TLS extension defined in RFC3546.
1513 A client can set the appropriate parameters and receive the encoded
1514 OCSP response via a callback. A server can query the supplied parameters
1515 and set the encoded OCSP response in the callback. Add simplified examples
1516 to s_client and s_server.
1519 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1521 *) Fix various bugs:
1522 + Binary incompatibility of ssl_ctx_st structure
1523 + DTLS interoperation with non-compliant servers
1524 + Don't call get_session_cb() without proposed session
1525 + Fix ia64 assembler code
1526 [Andy Polyakov, Steve Henson]
1528 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1530 *) DTLS Handshake overhaul. There were longstanding issues with
1531 OpenSSL DTLS implementation, which were making it impossible for
1532 RFC 4347 compliant client to communicate with OpenSSL server.
1533 Unfortunately just fixing these incompatibilities would "cut off"
1534 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1535 server keeps tolerating non RFC compliant syntax. The opposite is
1536 not true, 0.9.8f client can not communicate with earlier server.
1537 This update even addresses CVE-2007-4995.
1540 *) Changes to avoid need for function casts in OpenSSL: some compilers
1541 (gcc 4.2 and later) reject their use.
1542 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1545 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1546 RFC4507bis. The encrypted ticket format is an encrypted encoded
1547 SSL_SESSION structure, that way new session features are automatically
1550 If a client application caches session in an SSL_SESSION structure
1551 support is transparent because tickets are now stored in the encoded
1554 The SSL_CTX structure automatically generates keys for ticket
1555 protection in servers so again support should be possible
1556 with no application modification.
1558 If a client or server wishes to disable RFC4507 support then the option
1559 SSL_OP_NO_TICKET can be set.
1561 Add a TLS extension debugging callback to allow the contents of any client
1562 or server extensions to be examined.
1564 This work was sponsored by Google.
1567 *) Add initial support for TLS extensions, specifically for the server_name
1568 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1569 have new members for a host name. The SSL data structure has an
1570 additional member SSL_CTX *initial_ctx so that new sessions can be
1571 stored in that context to allow for session resumption, even after the
1572 SSL has been switched to a new SSL_CTX in reaction to a client's
1573 server_name extension.
1575 New functions (subject to change):
1577 SSL_get_servername()
1578 SSL_get_servername_type()
1581 New CTRL codes and macros (subject to change):
1583 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1584 - SSL_CTX_set_tlsext_servername_callback()
1585 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1586 - SSL_CTX_set_tlsext_servername_arg()
1587 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1589 openssl s_client has a new '-servername ...' option.
1591 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1592 '-key2 ...', '-servername_fatal' (subject to change). This allows
1593 testing the HostName extension for a specific single host name ('-cert'
1594 and '-key' remain fallbacks for handshakes without HostName
1595 negotiation). If the unrecogninzed_name alert has to be sent, this by
1596 default is a warning; it becomes fatal with the '-servername_fatal'
1599 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1601 *) Add AES and SSE2 assembly language support to VC++ build.
1604 *) Mitigate attack on final subtraction in Montgomery reduction.
1607 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1608 (which previously caused an internal error).
1611 *) Squeeze another 10% out of IGE mode when in != out.
1614 *) AES IGE mode speedup.
1615 [Dean Gaudet (Google)]
1617 *) Add the Korean symmetric 128-bit cipher SEED (see
1618 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1619 add SEED ciphersuites from RFC 4162:
1621 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1622 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1623 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1624 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1626 To minimize changes between patchlevels in the OpenSSL 0.9.8
1627 series, SEED remains excluded from compilation unless OpenSSL
1628 is configured with 'enable-seed'.
1629 [KISA, Bodo Moeller]
1631 *) Mitigate branch prediction attacks, which can be practical if a
1632 single processor is shared, allowing a spy process to extract
1633 information. For detailed background information, see
1634 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1635 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1636 and Necessary Software Countermeasures"). The core of the change
1637 are new versions BN_div_no_branch() and
1638 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1639 respectively, which are slower, but avoid the security-relevant
1640 conditional branches. These are automatically called by BN_div()
1641 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1642 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1643 remove a conditional branch.
1645 BN_FLG_CONSTTIME is the new name for the previous
1646 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1647 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1648 in the exponent causes BN_mod_exp_mont() to use the alternative
1649 implementation in BN_mod_exp_mont_consttime().) The old name
1650 remains as a deprecated alias.
1652 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1653 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1654 constant-time implementations for more than just exponentiation.
1655 Here too the old name is kept as a deprecated alias.
1657 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1658 the BN_BLINDING structure gets an independent copy of the
1659 modulus. This means that the previous "BIGNUM *m" argument to
1660 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1661 essentially becomes "const BIGNUM *m", although we can't actually
1662 change this in the header file before 0.9.9. It allows
1663 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1664 enable BN_FLG_CONSTTIME.
1666 [Matthew D Wood (Intel Corp)]
1668 *) In the SSL/TLS server implementation, be strict about session ID
1669 context matching (which matters if an application uses a single
1670 external cache for different purposes). Previously,
1671 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1672 set. This did ensure strict client verification, but meant that,
1673 with applications using a single external cache for quite
1674 different requirements, clients could circumvent ciphersuite
1675 restrictions for a given session ID context by starting a session
1676 in a different context.
1679 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1680 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1681 authentication-only ciphersuites.
1684 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1685 not complete and could lead to a possible single byte overflow
1686 (CVE-2007-5135) [Ben Laurie]
1688 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1690 *) Since AES128 and AES256 (and similarly Camellia128 and
1691 Camellia256) share a single mask bit in the logic of
1692 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1693 kludge to work properly if AES128 is available and AES256 isn't
1694 (or if Camellia128 is available and Camellia256 isn't).
1697 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1698 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1699 When a point or a seed is encoded in a BIT STRING, we need to
1700 prevent the removal of trailing zero bits to get the proper DER
1701 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1702 of a NamedBitList, for which trailing 0 bits need to be removed.)
1705 *) Have SSL/TLS server implementation tolerate "mismatched" record
1706 protocol version while receiving ClientHello even if the
1707 ClientHello is fragmented. (The server can't insist on the
1708 particular protocol version it has chosen before the ServerHello
1709 message has informed the client about his choice.)
1712 *) Add RFC 3779 support.
1713 [Rob Austein for ARIN, Ben Laurie]
1715 *) Load error codes if they are not already present instead of using a
1716 static variable. This allows them to be cleanly unloaded and reloaded.
1717 Improve header file function name parsing.
1720 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1721 or CAPABILITY handshake as required by RFCs.
1724 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1726 *) Introduce limits to prevent malicious keys being able to
1727 cause a denial of service. (CVE-2006-2940)
1728 [Steve Henson, Bodo Moeller]
1730 *) Fix ASN.1 parsing of certain invalid structures that can result
1731 in a denial of service. (CVE-2006-2937) [Steve Henson]
1733 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1734 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1736 *) Fix SSL client code which could crash if connecting to a
1737 malicious SSLv2 server. (CVE-2006-4343)
1738 [Tavis Ormandy and Will Drewry, Google Security Team]
1740 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1741 match only those. Before that, "AES256-SHA" would be interpreted
1742 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1743 the same strength classification in 0.9.7h) as we currently only
1744 have a single AES bit in the ciphersuite description bitmap.
1745 That change, however, also applied to ciphersuite strings such as
1746 "RC4-MD5" that intentionally matched multiple ciphersuites --
1747 namely, SSL 2.0 ciphersuites in addition to the more common ones
1748 from SSL 3.0/TLS 1.0.
1750 So we change the selection algorithm again: Naming an explicit
1751 ciphersuite selects this one ciphersuite, and any other similar
1752 ciphersuite (same bitmap) from *other* protocol versions.
1753 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1754 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1756 Since SSL 2.0 does not have any ciphersuites for which the
1757 128/256 bit distinction would be relevant, this works for now.
1758 The proper fix will be to use different bits for AES128 and
1759 AES256, which would have avoided the problems from the beginning;
1760 however, bits are scarce, so we can only do this in a new release
1761 (not just a patchlevel) when we can change the SSL_CIPHER
1762 definition to split the single 'unsigned long mask' bitmap into
1763 multiple values to extend the available space.
1767 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1769 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1770 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1772 *) Add AES IGE and biIGE modes.
1775 *) Change the Unix randomness entropy gathering to use poll() when
1776 possible instead of select(), since the latter has some
1777 undesirable limitations.
1778 [Darryl Miles via Richard Levitte and Bodo Moeller]
1780 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1781 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1782 cannot be implicitly activated as part of, e.g., the "AES" alias.
1783 However, please upgrade to OpenSSL 0.9.9[-dev] for
1784 non-experimental use of the ECC ciphersuites to get TLS extension
1785 support, which is required for curve and point format negotiation
1786 to avoid potential handshake problems.
1789 *) Disable rogue ciphersuites:
1791 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1792 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1793 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1795 The latter two were purportedly from
1796 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1799 Also deactivate the remaining ciphersuites from
1800 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1801 unofficial, and the ID has long expired.
1804 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1805 dual-core machines) and other potential thread-safety issues.
1808 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1809 versions), which is now available for royalty-free use
1810 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1811 Also, add Camellia TLS ciphersuites from RFC 4132.
1813 To minimize changes between patchlevels in the OpenSSL 0.9.8
1814 series, Camellia remains excluded from compilation unless OpenSSL
1815 is configured with 'enable-camellia'.
1818 *) Disable the padding bug check when compression is in use. The padding
1819 bug check assumes the first packet is of even length, this is not
1820 necessarily true if compresssion is enabled and can result in false
1821 positives causing handshake failure. The actual bug test is ancient
1822 code so it is hoped that implementations will either have fixed it by
1823 now or any which still have the bug do not support compression.
1826 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1828 *) When applying a cipher rule check to see if string match is an explicit
1829 cipher suite and only match that one cipher suite if it is.
1832 *) Link in manifests for VC++ if needed.
1833 [Austin Ziegler <halostatue@gmail.com>]
1835 *) Update support for ECC-based TLS ciphersuites according to
1836 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1837 TLS extensions, which are supported starting with the 0.9.9
1838 branch, not in the OpenSSL 0.9.8 branch).
1841 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1842 opaque EVP_CIPHER_CTX handling.
1845 *) Fixes and enhancements to zlib compression code. We now only use
1846 "zlib1.dll" and use the default __cdecl calling convention on Win32
1847 to conform with the standards mentioned here:
1848 http://www.zlib.net/DLL_FAQ.txt
1849 Static zlib linking now works on Windows and the new --with-zlib-include
1850 --with-zlib-lib options to Configure can be used to supply the location
1851 of the headers and library. Gracefully handle case where zlib library
1855 *) Several fixes and enhancements to the OID generation code. The old code
1856 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1857 handle numbers larger than ULONG_MAX, truncated printing and had a
1858 non standard OBJ_obj2txt() behaviour.
1861 *) Add support for building of engines under engine/ as shared libraries
1862 under VC++ build system.
1865 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1866 Hopefully, we will not see any false combination of paths any more.
1869 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1871 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1872 (part of SSL_OP_ALL). This option used to disable the
1873 countermeasure against man-in-the-middle protocol-version
1874 rollback in the SSL 2.0 server implementation, which is a bad
1875 idea. (CVE-2005-2969)
1877 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1878 for Information Security, National Institute of Advanced Industrial
1879 Science and Technology [AIST], Japan)]
1881 *) Add two function to clear and return the verify parameter flags.
1884 *) Keep cipherlists sorted in the source instead of sorting them at
1885 runtime, thus removing the need for a lock.
1888 *) Avoid some small subgroup attacks in Diffie-Hellman.
1889 [Nick Mathewson and Ben Laurie]
1891 *) Add functions for well-known primes.
1894 *) Extended Windows CE support.
1895 [Satoshi Nakamura and Andy Polyakov]
1897 *) Initialize SSL_METHOD structures at compile time instead of during
1898 runtime, thus removing the need for a lock.
1901 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1902 attempting to decrypt each encrypted key in turn. Add support to
1906 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1908 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1911 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1914 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1915 key into the same file any more.
1918 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1921 *) Add -utf8 command line and config file option to 'ca'.
1922 [Stefan <stf@udoma.org]
1924 *) Removed the macro des_crypt(), as it seems to conflict with some
1925 libraries. Use DES_crypt().
1928 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1929 involves renaming the source and generated shared-libs for
1930 both. The engines will accept the corrected or legacy ids
1931 ('ncipher' and '4758_cca' respectively) when binding. NB,
1932 this only applies when building 'shared'.
1933 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1935 *) Add attribute functions to EVP_PKEY structure. Modify
1936 PKCS12_create() to recognize a CSP name attribute and
1937 use it. Make -CSP option work again in pkcs12 utility.
1940 *) Add new functionality to the bn blinding code:
1941 - automatic re-creation of the BN_BLINDING parameters after
1942 a fixed number of uses (currently 32)
1943 - add new function for parameter creation
1944 - introduce flags to control the update behaviour of the
1945 BN_BLINDING parameters
1946 - hide BN_BLINDING structure
1947 Add a second BN_BLINDING slot to the RSA structure to improve
1948 performance when a single RSA object is shared among several
1952 *) Add support for DTLS.
1953 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1955 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1956 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1959 *) Remove buggy and incompletet DH cert support from
1960 ssl/ssl_rsa.c and ssl/s3_both.c
1963 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1964 the apps/openssl applications.
1967 *) Compile clean with "-Wall -Wmissing-prototypes
1968 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1969 DEBUG_SAFESTACK must also be set.
1972 *) Change ./Configure so that certain algorithms can be disabled by default.
1973 The new counterpiece to "no-xxx" is "enable-xxx".
1975 The patented RC5 and MDC2 algorithms will now be disabled unless
1976 "enable-rc5" and "enable-mdc2", respectively, are specified.
1978 (IDEA remains enabled despite being patented. This is because IDEA
1979 is frequently required for interoperability, and there is no license
1980 fee for non-commercial use. As before, "no-idea" can be used to
1981 avoid this algorithm.)
1985 *) Add processing of proxy certificates (see RFC 3820). This work was
1986 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1987 EGEE (Enabling Grids for E-science in Europe).
1990 *) RC4 performance overhaul on modern architectures/implementations, such
1991 as Intel P4, IA-64 and AMD64.
1994 *) New utility extract-section.pl. This can be used specify an alternative
1995 section number in a pod file instead of having to treat each file as
1996 a separate case in Makefile. This can be done by adding two lines to the
1999 =for comment openssl_section:XXX
2001 The blank line is mandatory.
2005 *) New arguments -certform, -keyform and -pass for s_client and s_server
2006 to allow alternative format key and certificate files and passphrase
2010 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2011 update associated structures and add various utility functions.
2013 Add new policy related verify parameters, include policy checking in
2014 standard verify code. Enhance 'smime' application with extra parameters
2015 to support policy checking and print out.
2018 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2019 Nehemiah processors. These extensions support AES encryption in hardware
2020 as well as RNG (though RNG support is currently disabled).
2021 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2023 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2026 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2027 [Andy Polyakov and a number of other people]
2029 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2030 implementation contributed by IBM.
2031 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2033 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2034 exponent rather than 'unsigned long'. There is a corresponding change to
2035 the new 'rsa_keygen' element of the RSA_METHOD structure.
2036 [Jelte Jansen, Geoff Thorpe]
2038 *) Functionality for creating the initial serial number file is now
2039 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2041 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2042 number file to 1, which is bound to cause problems. To avoid
2043 the problems while respecting compatibility between different 0.9.7
2044 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2045 CA.pl for serial number initialization. With the new release 0.9.8,
2046 we can fix the problem directly in the 'ca' utility.)
2049 *) Reduced header interdepencies by declaring more opaque objects in
2050 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2051 give fewer recursive includes, which could break lazy source code - so
2052 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2053 developers should define this symbol when building and using openssl to
2054 ensure they track the recommended behaviour, interfaces, [etc], but
2055 backwards-compatible behaviour prevails when this isn't defined.
2058 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2061 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2062 This will generate a random key of the appropriate length based on the
2063 cipher context. The EVP_CIPHER can provide its own random key generation
2064 routine to support keys of a specific form. This is used in the des and
2065 3des routines to generate a key of the correct parity. Update S/MIME
2066 code to use new functions and hence generate correct parity DES keys.
2067 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2068 valid (weak or incorrect parity).
2071 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2072 as looking them up. This is useful when the verified structure may contain
2073 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2074 present unless the new PKCS7_NO_CRL flag is asserted.
2077 *) Extend ASN1 oid configuration module. It now additionally accepts the
2080 shortName = some long name, 1.2.3.4
2083 *) Reimplemented the BN_CTX implementation. There is now no more static
2084 limitation on the number of variables it can handle nor the depth of the
2085 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2086 information can now expand as required, and rather than having a single
2087 static array of bignums, BN_CTX now uses a linked-list of such arrays
2088 allowing it to expand on demand whilst maintaining the usefulness of
2089 BN_CTX's "bundling".
2092 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2093 to allow all RSA operations to function using a single BN_CTX.
2096 *) Preliminary support for certificate policy evaluation and checking. This
2097 is initially intended to pass the tests outlined in "Conformance Testing
2098 of Relying Party Client Certificate Path Processing Logic" v1.07.
2101 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2102 remained unused and not that useful. A variety of other little bignum
2103 tweaks and fixes have also been made continuing on from the audit (see
2107 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2108 associated ASN1, EVP and SSL functions and old ASN1 macros.
2111 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2112 and this should never fail. So the return value from the use of
2113 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2114 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2117 *) BN_CTX_get() should return zero-valued bignums, providing the same
2118 initialised value as BN_new().
2119 [Geoff Thorpe, suggested by Ulf Möller]
2121 *) Support for inhibitAnyPolicy certificate extension.
2124 *) An audit of the BIGNUM code is underway, for which debugging code is
2125 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2126 is considered valid when processing BIGNUMs, and causes execution to
2127 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2128 further steps are taken to deliberately pollute unused data in BIGNUM
2129 structures to try and expose faulty code further on. For now, openssl will
2130 (in its default mode of operation) continue to tolerate the inconsistent
2131 forms that it has tolerated in the past, but authors and packagers should
2132 consider trying openssl and their own applications when compiled with
2133 these debugging symbols defined. It will help highlight potential bugs in
2134 their own code, and will improve the test coverage for OpenSSL itself. At
2135 some point, these tighter rules will become openssl's default to improve
2136 maintainability, though the assert()s and other overheads will remain only
2137 in debugging configurations. See bn.h for more details.
2138 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2140 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2141 that can only be obtained through BN_CTX_new() (which implicitly
2142 initialises it). The presence of this function only made it possible
2143 to overwrite an existing structure (and cause memory leaks).
2146 *) Because of the callback-based approach for implementing LHASH as a
2147 template type, lh_insert() adds opaque objects to hash-tables and
2148 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2149 to clean up those corresponding objects before destroying the hash table
2150 (and losing the object pointers). So some over-zealous constifications in
2151 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2152 objects as "const" and the lh_doall[_arg] callback wrappers are not
2153 prototyped to have "const" restrictions on the object pointers they are
2154 given (and so aren't required to cast them away any more).
2157 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2158 (speed) prefers to use its own implementation. The two implementations
2159 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2160 its object type properly exposed (MS_TM) instead of casting to/from "char
2161 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2162 aren't necessarily the greatest nomenclatures - but this is what was used
2163 internally to the implementation so I've used that for now.
2166 *) Ensure that deprecated functions do not get compiled when
2167 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2168 the self-tests were still using deprecated key-generation functions so
2169 these have been updated also.
2172 *) Reorganise PKCS#7 code to separate the digest location functionality
2173 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2174 New function PKCS7_set_digest() to set the digest type for PKCS#7
2175 digestedData type. Add additional code to correctly generate the
2176 digestedData type and add support for this type in PKCS7 initialization
2180 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2181 structure of type "other".
2184 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2185 sure the loop does correctly stop and breaking ("division by zero")
2186 modulus operations are not performed. The (pre-generated) prime
2187 table crypto/bn/bn_prime.h was already correct, but it could not be
2188 re-generated on some platforms because of the "division by zero"
2189 situation in the script.
2190 [Ralf S. Engelschall]
2192 *) Update support for ECC-based TLS ciphersuites according to
2193 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2194 SHA-1 now is only used for "small" curves (where the
2195 representation of a field element takes up to 24 bytes); for
2196 larger curves, the field element resulting from ECDH is directly
2197 used as premaster secret.
2198 [Douglas Stebila (Sun Microsystems Laboratories)]
2200 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2201 curve secp160r1 to the tests.
2202 [Douglas Stebila (Sun Microsystems Laboratories)]
2204 *) Add the possibility to load symbols globally with DSO.
2205 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2207 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2208 control of the error stack.
2211 *) Add support for STORE in ENGINE.
2214 *) Add the STORE type. The intention is to provide a common interface
2215 to certificate and key stores, be they simple file-based stores, or
2216 HSM-type store, or LDAP stores, or...
2217 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2220 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2221 pass a list of arguments to any function as well as provide a way
2222 for a function to pass data back to the caller.
2225 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2226 works like BUF_strdup() but can be used to duplicate a portion of
2227 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2231 *) Add the function sk_find_ex() which works like sk_find(), but will
2232 return an index to an element even if an exact match couldn't be
2233 found. The index is guaranteed to point at the element where the
2234 searched-for key would be inserted to preserve sorting order.
2237 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2238 takes an extra flags argument for optional functionality. Currently,
2239 the following flags are defined:
2241 OBJ_BSEARCH_VALUE_ON_NOMATCH
2242 This one gets OBJ_bsearch_ex() to return a pointer to the first
2243 element where the comparing function returns a negative or zero
2246 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2247 This one gets OBJ_bsearch_ex() to return a pointer to the first
2248 element where the comparing function returns zero. This is useful
2249 if there are more than one element where the comparing function
2253 *) Make it possible to create self-signed certificates with 'openssl ca'
2254 in such a way that the self-signed certificate becomes part of the
2255 CA database and uses the same mechanisms for serial number generation
2256 as all other certificate signing. The new flag '-selfsign' enables
2257 this functionality. Adapt CA.sh and CA.pl.in.
2260 *) Add functionality to check the public key of a certificate request
2261 against a given private. This is useful to check that a certificate
2262 request can be signed by that key (self-signing).
2265 *) Make it possible to have multiple active certificates with the same
2266 subject in the CA index file. This is done only if the keyword
2267 'unique_subject' is set to 'no' in the main CA section (default
2268 if 'CA_default') of the configuration file. The value is saved
2269 with the database itself in a separate index attribute file,
2270 named like the index file with '.attr' appended to the name.
2273 *) Generate muti valued AVAs using '+' notation in config files for
2277 *) Support for nameConstraints certificate extension.
2280 *) Support for policyConstraints certificate extension.
2283 *) Support for policyMappings certificate extension.
2286 *) Make sure the default DSA_METHOD implementation only uses its
2287 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2288 and change its own handlers to be NULL so as to remove unnecessary
2289 indirection. This lets alternative implementations fallback to the
2290 default implementation more easily.
2293 *) Support for directoryName in GeneralName related extensions
2297 *) Make it possible to link applications using Makefile.shared.
2298 Make that possible even when linking against static libraries!
2301 *) Support for single pass processing for S/MIME signing. This now
2302 means that S/MIME signing can be done from a pipe, in addition
2303 cleartext signing (multipart/signed type) is effectively streaming
2304 and the signed data does not need to be all held in memory.
2306 This is done with a new flag PKCS7_STREAM. When this flag is set
2307 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2308 is done after the data is output (and digests calculated) in
2309 SMIME_write_PKCS7().
2312 *) Add full support for -rpath/-R, both in shared libraries and
2313 applications, at least on the platforms where it's known how
2317 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2318 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2319 will now compute a table of multiples of the generator that
2320 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2321 faster (notably in the case of a single point multiplication,
2322 scalar * generator).
2323 [Nils Larsch, Bodo Moeller]
2325 *) IPv6 support for certificate extensions. The various extensions
2326 which use the IP:a.b.c.d can now take IPv6 addresses using the
2327 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2331 *) Added an ENGINE that implements RSA by performing private key
2332 exponentiations with the GMP library. The conversions to and from
2333 GMP's mpz_t format aren't optimised nor are any montgomery forms
2334 cached, and on x86 it appears OpenSSL's own performance has caught up.
2335 However there are likely to be other architectures where GMP could
2336 provide a boost. This ENGINE is not built in by default, but it can be
2337 specified at Configure time and should be accompanied by the necessary
2338 linker additions, eg;
2339 ./config -DOPENSSL_USE_GMP -lgmp
2342 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2343 testing availability of engines with "-t" - the old behaviour is
2344 produced by increasing the feature's verbosity with "-tt".
2347 *) ECDSA routines: under certain error conditions uninitialized BN objects
2348 could be freed. Solution: make sure initialization is performed early
2349 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2353 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2354 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2355 software implementations. For DSA and DH, parameter generation can
2356 also be overriden by providing the appropriate method callbacks.
2359 *) Change the "progress" mechanism used in key-generation and
2360 primality testing to functions that take a new BN_GENCB pointer in
2361 place of callback/argument pairs. The new API functions have "_ex"
2362 postfixes and the older functions are reimplemented as wrappers for
2363 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2364 declarations of the old functions to help (graceful) attempts to
2365 migrate to the new functions. Also, the new key-generation API
2366 functions operate on a caller-supplied key-structure and return
2367 success/failure rather than returning a key or NULL - this is to
2368 help make "keygen" another member function of RSA_METHOD etc.
2370 Example for using the new callback interface:
2372 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2376 BN_GENCB_set(&my_cb, my_callback, my_arg);
2378 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2379 /* For the meaning of a, b in calls to my_callback(), see the
2380 * documentation of the function that calls the callback.
2381 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2382 * my_callback should return 1 if it wants BN_is_prime_ex()
2383 * to continue, or 0 to stop.
2388 *) Change the ZLIB compression method to be stateful, and make it
2389 available to TLS with the number defined in
2390 draft-ietf-tls-compression-04.txt.
2393 *) Add the ASN.1 structures and functions for CertificatePair, which
2394 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2396 CertificatePair ::= SEQUENCE {
2397 forward [0] Certificate OPTIONAL,
2398 reverse [1] Certificate OPTIONAL,
2399 -- at least one of the pair shall be present -- }
2401 Also implement the PEM functions to read and write certificate
2402 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2404 This needed to be defined, mostly for the sake of the LDAP
2405 attribute crossCertificatePair, but may prove useful elsewhere as
2409 *) Make it possible to inhibit symlinking of shared libraries in
2410 Makefile.shared, for Cygwin's sake.
2413 *) Extend the BIGNUM API by creating a function
2414 void BN_set_negative(BIGNUM *a, int neg);
2415 and a macro that behave like
2416 int BN_is_negative(const BIGNUM *a);
2418 to avoid the need to access 'a->neg' directly in applications.
2421 *) Implement fast modular reduction for pseudo-Mersenne primes
2422 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2423 EC_GROUP_new_curve_GFp() will now automatically use this
2425 [Nils Larsch <nla@trustcenter.de>]
2427 *) Add new lock type (CRYPTO_LOCK_BN).
2430 *) Change the ENGINE framework to automatically load engines
2431 dynamically from specific directories unless they could be
2432 found to already be built in or loaded. Move all the
2433 current engines except for the cryptodev one to a new
2435 The engines in engines/ are built as shared libraries if
2436 the "shared" options was given to ./Configure or ./config.
2437 Otherwise, they are inserted in libcrypto.a.
2438 /usr/local/ssl/engines is the default directory for dynamic
2439 engines, but that can be overriden at configure time through
2440 the usual use of --prefix and/or --openssldir, and at run
2441 time with the environment variable OPENSSL_ENGINES.
2442 [Geoff Thorpe and Richard Levitte]
2444 *) Add Makefile.shared, a helper makefile to build shared
2445 libraries. Addapt Makefile.org.
2448 *) Add version info to Win32 DLLs.
2449 [Peter 'Luna' Runestig" <peter@runestig.com>]
2451 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2452 can be added using this API to created arbitrary PKCS#12
2453 files while avoiding the low level API.
2455 New options to PKCS12_create(), key or cert can be NULL and
2456 will then be omitted from the output file. The encryption
2457 algorithm NIDs can be set to -1 for no encryption, the mac
2458 iteration count can be set to 0 to omit the mac.
2460 Enhance pkcs12 utility by making the -nokeys and -nocerts
2461 options work when creating a PKCS#12 file. New option -nomac
2462 to omit the mac, NONE can be set for an encryption algorithm.
2463 New code is modified to use the enhanced PKCS12_create()
2464 instead of the low level API.
2467 *) Extend ASN1 encoder to support indefinite length constructed
2468 encoding. This can output sequences tags and octet strings in
2469 this form. Modify pk7_asn1.c to support indefinite length
2470 encoding. This is experimental and needs additional code to
2471 be useful, such as an ASN1 bio and some enhanced streaming
2474 Extend template encode functionality so that tagging is passed
2475 down to the template encoder.
2478 *) Let 'openssl req' fail if an argument to '-newkey' is not
2479 recognized instead of using RSA as a default.
2482 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2483 As these are not official, they are not included in "ALL";
2484 the "ECCdraft" ciphersuite group alias can be used to select them.
2485 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2487 *) Add ECDH engine support.
2488 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2490 *) Add ECDH in new directory crypto/ecdh/.
2491 [Douglas Stebila (Sun Microsystems Laboratories)]
2493 *) Let BN_rand_range() abort with an error after 100 iterations
2494 without success (which indicates a broken PRNG).
2497 *) Change BN_mod_sqrt() so that it verifies that the input value
2498 is really the square of the return value. (Previously,
2499 BN_mod_sqrt would show GIGO behaviour.)
2502 *) Add named elliptic curves over binary fields from X9.62, SECG,
2503 and WAP/WTLS; add OIDs that were still missing.
2505 [Sheueling Chang Shantz and Douglas Stebila
2506 (Sun Microsystems Laboratories)]
2508 *) Extend the EC library for elliptic curves over binary fields
2509 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2512 EC_GF2m_simple_method
2516 EC_GROUP_new_curve_GF2m
2517 EC_GROUP_set_curve_GF2m
2518 EC_GROUP_get_curve_GF2m
2519 EC_POINT_set_affine_coordinates_GF2m
2520 EC_POINT_get_affine_coordinates_GF2m
2521 EC_POINT_set_compressed_coordinates_GF2m
2523 Point compression for binary fields is disabled by default for
2524 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2527 As binary polynomials are represented as BIGNUMs, various members
2528 of the EC_GROUP and EC_POINT data structures can be shared
2529 between the implementations for prime fields and binary fields;
2530 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2531 are essentially identical to their ..._GFp counterparts.
2532 (For simplicity, the '..._GFp' prefix has been dropped from
2533 various internal method names.)
2535 An internal 'field_div' method (similar to 'field_mul' and
2536 'field_sqr') has been added; this is used only for binary fields.
2538 [Sheueling Chang Shantz and Douglas Stebila
2539 (Sun Microsystems Laboratories)]
2541 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2542 through methods ('mul', 'precompute_mult').
2544 The generic implementations (now internally called 'ec_wNAF_mul'
2545 and 'ec_wNAF_precomputed_mult') remain the default if these
2546 methods are undefined.
2548 [Sheueling Chang Shantz and Douglas Stebila
2549 (Sun Microsystems Laboratories)]
2551 *) New function EC_GROUP_get_degree, which is defined through
2552 EC_METHOD. For curves over prime fields, this returns the bit
2553 length of the modulus.
2555 [Sheueling Chang Shantz and Douglas Stebila
2556 (Sun Microsystems Laboratories)]
2558 *) New functions EC_GROUP_dup, EC_POINT_dup.
2559 (These simply call ..._new and ..._copy).
2561 [Sheueling Chang Shantz and Douglas Stebila
2562 (Sun Microsystems Laboratories)]
2564 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2565 Polynomials are represented as BIGNUMs (where the sign bit is not
2566 used) in the following functions [macros]:
2569 BN_GF2m_sub [= BN_GF2m_add]
2570 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2571 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2572 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2574 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2575 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2576 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2577 BN_GF2m_cmp [= BN_ucmp]
2579 (Note that only the 'mod' functions are actually for fields GF(2^m).
2580 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2582 For some functions, an the irreducible polynomial defining a
2583 field can be given as an 'unsigned int[]' with strictly
2584 decreasing elements giving the indices of those bits that are set;
2585 i.e., p[] represents the polynomial
2586 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2588 p[0] > p[1] > ... > p[k] = 0.
2589 This applies to the following functions:
2594 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2595 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2597 BN_GF2m_mod_sqrt_arr
2598 BN_GF2m_mod_solve_quad_arr
2602 Conversion can be performed by the following functions:
2607 bntest.c has additional tests for binary polynomial arithmetic.
2609 Two implementations for BN_GF2m_mod_div() are available.
2610 The default algorithm simply uses BN_GF2m_mod_inv() and
2611 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2612 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2613 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2615 [Sheueling Chang Shantz and Douglas Stebila
2616 (Sun Microsystems Laboratories)]
2618 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2619 functionality is disabled at compile-time.
2620 [Douglas Stebila <douglas.stebila@sun.com>]
2622 *) Change default behaviour of 'openssl asn1parse' so that more
2623 information is visible when viewing, e.g., a certificate:
2625 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2626 mode the content of non-printable OCTET STRINGs is output in a
2627 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2628 avoid the appearance of a printable string.
2629 [Nils Larsch <nla@trustcenter.de>]
2631 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2633 EC_GROUP_set_asn1_flag()
2634 EC_GROUP_get_asn1_flag()
2635 EC_GROUP_set_point_conversion_form()
2636 EC_GROUP_get_point_conversion_form()
2637 These control ASN1 encoding details:
2638 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2639 has been set to OPENSSL_EC_NAMED_CURVE.
2640 - Points are encoded in uncompressed form by default; options for
2641 asn1_for are as for point2oct, namely
2642 POINT_CONVERSION_COMPRESSED
2643 POINT_CONVERSION_UNCOMPRESSED
2644 POINT_CONVERSION_HYBRID
2646 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2649 EC_GROUP_get0_seed()
2650 EC_GROUP_get_seed_len()
2651 This is used only for ASN1 purposes (so far).
2652 [Nils Larsch <nla@trustcenter.de>]
2654 *) Add 'field_type' member to EC_METHOD, which holds the NID
2655 of the appropriate field type OID. The new function
2656 EC_METHOD_get_field_type() returns this value.
2657 [Nils Larsch <nla@trustcenter.de>]
2662 EC_POINT_point2hex()
2663 EC_POINT_hex2point()
2664 providing useful interfaces to EC_POINT_point2oct() and
2665 EC_POINT_oct2point().
2666 [Nils Larsch <nla@trustcenter.de>]
2668 *) Change internals of the EC library so that the functions
2669 EC_GROUP_set_generator()
2670 EC_GROUP_get_generator()
2671 EC_GROUP_get_order()
2672 EC_GROUP_get_cofactor()
2673 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2674 to methods, which would lead to unnecessary code duplication when
2675 adding different types of curves.
2676 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2678 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2679 arithmetic, and such that modified wNAFs are generated
2680 (which avoid length expansion in many cases).
2683 *) Add a function EC_GROUP_check_discriminant() (defined via
2684 EC_METHOD) that verifies that the curve discriminant is non-zero.
2686 Add a function EC_GROUP_check() that makes some sanity tests
2687 on a EC_GROUP, its generator and order. This includes
2688 EC_GROUP_check_discriminant().
2689 [Nils Larsch <nla@trustcenter.de>]
2691 *) Add ECDSA in new directory crypto/ecdsa/.
2693 Add applications 'openssl ecparam' and 'openssl ecdsa'
2694 (these are based on 'openssl dsaparam' and 'openssl dsa').
2696 ECDSA support is also included in various other files across the
2697 library. Most notably,
2698 - 'openssl req' now has a '-newkey ecdsa:file' option;
2699 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2700 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2701 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2702 them suitable for ECDSA where domain parameters must be
2703 extracted before the specific public key;
2704 - ECDSA engine support has been added.
2705 [Nils Larsch <nla@trustcenter.de>]
2707 *) Include some named elliptic curves, and add OIDs from X9.62,
2708 SECG, and WAP/WTLS. Each curve can be obtained from the new
2710 EC_GROUP_new_by_curve_name(),
2711 and the list of available named curves can be obtained with
2712 EC_get_builtin_curves().
2713 Also add a 'curve_name' member to EC_GROUP objects, which can be
2715 EC_GROUP_set_curve_name()
2716 EC_GROUP_get_curve_name()
2717 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2719 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2720 was actually never needed) and in BN_mul(). The removal in BN_mul()
2721 required a small change in bn_mul_part_recursive() and the addition
2722 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2723 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2724 bn_sub_words() and bn_add_words() except they take arrays with
2728 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2730 *) Cleanse PEM buffers before freeing them since they may contain
2732 [Benjamin Bennett <ben@psc.edu>]
2734 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2735 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2736 authentication-only ciphersuites.
2739 *) Since AES128 and AES256 share a single mask bit in the logic of
2740 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2741 kludge to work properly if AES128 is available and AES256 isn't.
2744 *) Expand security boundary to match 1.1.1 module.
2747 *) Remove redundant features: hash file source, editing of test vectors
2748 modify fipsld to use external fips_premain.c signature.
2751 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2752 run algorithm test programs.
2755 *) Make algorithm test programs more tolerant of whitespace.
2758 *) Have SSL/TLS server implementation tolerate "mismatched" record
2759 protocol version while receiving ClientHello even if the
2760 ClientHello is fragmented. (The server can't insist on the
2761 particular protocol version it has chosen before the ServerHello
2762 message has informed the client about his choice.)
2765 *) Load error codes if they are not already present instead of using a
2766 static variable. This allows them to be cleanly unloaded and reloaded.
2769 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2771 *) Introduce limits to prevent malicious keys being able to
2772 cause a denial of service. (CVE-2006-2940)
2773 [Steve Henson, Bodo Moeller]
2775 *) Fix ASN.1 parsing of certain invalid structures that can result
2776 in a denial of service. (CVE-2006-2937) [Steve Henson]
2778 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2779 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2781 *) Fix SSL client code which could crash if connecting to a
2782 malicious SSLv2 server. (CVE-2006-4343)
2783 [Tavis Ormandy and Will Drewry, Google Security Team]
2785 *) Change ciphersuite string processing so that an explicit
2786 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2787 will no longer include "AES128-SHA"), and any other similar
2788 ciphersuite (same bitmap) from *other* protocol versions (so that
2789 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2790 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2791 changes from 0.9.8b and 0.9.8d.
2794 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2796 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2797 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2799 *) Change the Unix randomness entropy gathering to use poll() when
2800 possible instead of select(), since the latter has some
2801 undesirable limitations.
2802 [Darryl Miles via Richard Levitte and Bodo Moeller]
2804 *) Disable rogue ciphersuites:
2806 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2807 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2808 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2810 The latter two were purportedly from
2811 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2814 Also deactive the remaining ciphersuites from
2815 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2816 unofficial, and the ID has long expired.
2819 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2820 dual-core machines) and other potential thread-safety issues.
2823 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2825 *) Adapt fipsld and the build system to link against the validated FIPS
2826 module in FIPS mode.
2829 *) Fixes for VC++ 2005 build under Windows.
2832 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2833 from a Windows bash shell such as MSYS. It is autodetected from the
2834 "config" script when run from a VC++ environment. Modify standard VC++
2835 build to use fipscanister.o from the GNU make build.
2838 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2840 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2841 The value now differs depending on if you build for FIPS or not.
2842 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2843 safely run with a non-FIPSed libcrypto, as it may crash because of
2844 the difference induced by this change.
2847 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2849 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2850 (part of SSL_OP_ALL). This option used to disable the
2851 countermeasure against man-in-the-middle protocol-version
2852 rollback in the SSL 2.0 server implementation, which is a bad
2853 idea. (CVE-2005-2969)
2855 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2856 for Information Security, National Institute of Advanced Industrial
2857 Science and Technology [AIST], Japan)]
2859 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2860 mainly for FIPS compliance and not fully integrated at this stage.
2863 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2864 the exponentiation using a fixed-length exponent. (Otherwise,
2865 the information leaked through timing could expose the secret key
2866 after many signatures; cf. Bleichenbacher's attack on DSA with
2870 *) Make a new fixed-window mod_exp implementation the default for
2871 RSA, DSA, and DH private-key operations so that the sequence of
2872 squares and multiplies and the memory access pattern are
2873 independent of the particular secret key. This will mitigate
2874 cache-timing and potential related attacks.
2876 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2877 and this is automatically used by BN_mod_exp_mont() if the new flag
2878 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2879 will use this BN flag for private exponents unless the flag
2880 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2881 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2883 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2885 *) Change the client implementation for SSLv23_method() and
2886 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2887 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2888 (Previously, the SSL 2.0 backwards compatible Client Hello
2889 message format would be used even with SSL_OP_NO_SSLv2.)
2892 *) Add support for smime-type MIME parameter in S/MIME messages which some
2896 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2897 a threadsafe manner. Modify rsa code to use new function and add calls
2898 to dsa and dh code (which had race conditions before).
2901 *) Include the fixed error library code in the C error file definitions
2902 instead of fixing them up at runtime. This keeps the error code
2903 structures constant.
2906 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2908 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2911 *) Fixes for newer kerberos headers. NB: the casts are needed because
2912 the 'length' field is signed on one version and unsigned on another
2913 with no (?) obvious way to tell the difference, without these VC++
2914 complains. Also the "definition" of FAR (blank) is no longer included
2915 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2916 some needed definitions.
2919 *) Undo Cygwin change.
2922 *) Added support for proxy certificates according to RFC 3820.
2923 Because they may be a security thread to unaware applications,
2924 they must be explicitely allowed in run-time. See
2925 docs/HOWTO/proxy_certificates.txt for further information.
2928 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2930 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2931 server and client random values. Previously
2932 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2933 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2935 This change has negligible security impact because:
2937 1. Server and client random values still have 24 bytes of pseudo random
2940 2. Server and client random values are sent in the clear in the initial
2943 3. The master secret is derived using the premaster secret (48 bytes in
2944 size for static RSA ciphersuites) as well as client server and random
2947 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2950 [Stephen Henson, reported by UK NISCC]
2952 *) Use Windows randomness collection on Cygwin.
2955 *) Fix hang in EGD/PRNGD query when communication socket is closed
2956 prematurely by EGD/PRNGD.
2957 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2959 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2962 *) Back-port of selected performance improvements from development
2963 branch, as well as improved support for PowerPC platforms.
2966 *) Add lots of checks for memory allocation failure, error codes to indicate
2967 failure and freeing up memory if a failure occurs.
2968 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2970 *) Add new -passin argument to dgst.
2973 *) Perform some character comparisons of different types in X509_NAME_cmp:
2974 this is needed for some certificates that reencode DNs into UTF8Strings
2975 (in violation of RFC3280) and can't or wont issue name rollover
2979 *) Make an explicit check during certificate validation to see that
2980 the CA setting in each certificate on the chain is correct. As a
2981 side effect always do the following basic checks on extensions,
2982 not just when there's an associated purpose to the check:
2984 - if there is an unhandled critical extension (unless the user
2985 has chosen to ignore this fault)
2986 - if the path length has been exceeded (if one is set at all)
2987 - that certain extensions fit the associated purpose (if one has
2991 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2993 *) Avoid a race condition when CRLs are checked in a multi threaded
2994 environment. This would happen due to the reordering of the revoked
2995 entries during signature checking and serial number lookup. Now the
2996 encoding is cached and the serial number sort performed under a lock.
2997 Add new STACK function sk_is_sorted().
3000 *) Add Delta CRL to the extension code.
3003 *) Various fixes to s3_pkt.c so alerts are sent properly.
3004 [David Holmes <d.holmes@f5.com>]
3006 *) Reduce the chances of duplicate issuer name and serial numbers (in
3007 violation of RFC3280) using the OpenSSL certificate creation utilities.
3008 This is done by creating a random 64 bit value for the initial serial
3009 number when a serial number file is created or when a self signed
3010 certificate is created using 'openssl req -x509'. The initial serial
3011 number file is created using 'openssl x509 -next_serial' in CA.pl
3012 rather than being initialized to 1.
3015 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3017 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3018 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3019 [Joe Orton, Steve Henson]
3021 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3023 [Joe Orton, Steve Henson]
3025 *) Make it possible to have multiple active certificates with the same
3026 subject in the CA index file. This is done only if the keyword
3027 'unique_subject' is set to 'no' in the main CA section (default
3028 if 'CA_default') of the configuration file. The value is saved
3029 with the database itself in a separate index attribute file,
3030 named like the index file with '.attr' appended to the name.
3033 *) X509 verify fixes. Disable broken certificate workarounds when
3034 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3035 keyUsage extension present. Don't accept CRLs with unhandled critical
3036 extensions: since verify currently doesn't process CRL extensions this
3037 rejects a CRL with *any* critical extensions. Add new verify error codes
3041 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3042 A clarification of RFC2560 will require the use of OCTET STRINGs and
3043 some implementations cannot handle the current raw format. Since OpenSSL
3044 copies and compares OCSP nonces as opaque blobs without any attempt at
3045 parsing them this should not create any compatibility issues.
3048 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3049 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3050 this HMAC (and other) operations are several times slower than OpenSSL
3054 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3055 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3057 *) Use the correct content when signing type "other".
3060 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3062 *) Fix various bugs revealed by running the NISCC test suite:
3064 Stop out of bounds reads in the ASN1 code when presented with
3065 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3067 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3069 If verify callback ignores invalid public key errors don't try to check
3070 certificate signature with the NULL public key.
3074 *) New -ignore_err option in ocsp application to stop the server
3075 exiting on the first error in a request.
3078 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3079 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3083 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3084 extra data after the compression methods not only for TLS 1.0
3085 but also for SSL 3.0 (as required by the specification).
3086 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3088 *) Change X509_certificate_type() to mark the key as exported/exportable
3089 when it's 512 *bits* long, not 512 bytes.
3092 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3093 blocks during encryption.
3096 *) Various fixes to base64 BIO and non blocking I/O. On write
3097 flushes were not handled properly if the BIO retried. On read
3098 data was not being buffered properly and had various logic bugs.
3099 This also affects blocking I/O when the data being decoded is a
3103 *) Various S/MIME bugfixes and compatibility changes:
3104 output correct application/pkcs7 MIME type if
3105 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3106 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3107 of files as .eml work). Correctly handle very long lines in MIME
3111 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3113 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3114 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3115 a protocol version number mismatch like a decryption error
3116 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3119 *) Turn on RSA blinding by default in the default implementation
3120 to avoid a timing attack. Applications that don't want it can call
3121 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3122 They would be ill-advised to do so in most cases.
3123 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3125 *) Change RSA blinding code so that it works when the PRNG is not
3126 seeded (in this case, the secret RSA exponent is abused as
3127 an unpredictable seed -- if it is not unpredictable, there
3128 is no point in blinding anyway). Make RSA blinding thread-safe
3129 by remembering the creator's thread ID in rsa->blinding and
3130 having all other threads use local one-time blinding factors
3131 (this requires more computation than sharing rsa->blinding, but
3132 avoids excessive locking; and if an RSA object is not shared
3133 between threads, blinding will still be very fast).
3136 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3137 ENGINE as defaults for all supported algorithms irrespective of
3138 the 'flags' parameter. 'flags' is now honoured, so applications
3139 should make sure they are passing it correctly.
3142 *) Target "mingw" now allows native Windows code to be generated in
3143 the Cygwin environment as well as with the MinGW compiler.
3146 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3148 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3149 via timing by performing a MAC computation even if incorrrect
3150 block cipher padding has been found. This is a countermeasure
3151 against active attacks where the attacker has to distinguish
3152 between bad padding and a MAC verification error. (CVE-2003-0078)
3154 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3155 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3156 Martin Vuagnoux (EPFL, Ilion)]
3158 *) Make the no-err option work as intended. The intention with no-err
3159 is not to have the whole error stack handling routines removed from
3160 libcrypto, it's only intended to remove all the function name and
3161 reason texts, thereby removing some of the footprint that may not
3162 be interesting if those errors aren't displayed anyway.
3164 NOTE: it's still possible for any application or module to have it's
3165 own set of error texts inserted. The routines are there, just not
3166 used by default when no-err is given.
3169 *) Add support for FreeBSD on IA64.
3170 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3172 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3173 Kerberos function mit_des_cbc_cksum(). Before this change,
3174 the value returned by DES_cbc_cksum() was like the one from
3175 mit_des_cbc_cksum(), except the bytes were swapped.
3176 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3178 *) Allow an application to disable the automatic SSL chain building.
3179 Before this a rather primitive chain build was always performed in
3180 ssl3_output_cert_chain(): an application had no way to send the
3181 correct chain if the automatic operation produced an incorrect result.
3183 Now the chain builder is disabled if either:
3185 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3187 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3189 The reasoning behind this is that an application would not want the
3190 auto chain building to take place if extra chain certificates are
3191 present and it might also want a means of sending no additional
3192 certificates (for example the chain has two certificates and the
3196 *) Add the possibility to build without the ENGINE framework.
3197 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3199 *) Under Win32 gmtime() can return NULL: check return value in
3200 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3203 *) DSA routines: under certain error conditions uninitialized BN objects
3204 could be freed. Solution: make sure initialization is performed early
3205 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3206 Nils Larsch <nla@trustcenter.de> via PR#459)
3209 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3210 checked on reconnect on the client side, therefore session resumption
3211 could still fail with a "ssl session id is different" error. This
3212 behaviour is masked when SSL_OP_ALL is used due to
3213 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3214 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3215 followup to PR #377.
3218 *) IA-32 assembler support enhancements: unified ELF targets, support
3219 for SCO/Caldera platforms, fix for Cygwin shared build.
3222 *) Add support for FreeBSD on sparc64. As a consequence, support for
3223 FreeBSD on non-x86 processors is separate from x86 processors on
3224 the config script, much like the NetBSD support.
3225 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3227 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3229 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3232 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3233 code (06) was taken as the first octet of the session ID and the last
3234 octet was ignored consequently. As a result SSLv2 client side session
3235 caching could not have worked due to the session ID mismatch between
3237 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3241 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3242 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3246 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3247 seems that in spite of existing for more than a year, many application
3248 author have done nothing to provide the necessary callbacks, which
3249 means that this particular engine will not work properly anywhere.
3250 This is a very unfortunate situation which forces us, in the name
3251 of usability, to give the hw_ncipher.c a static lock, which is part
3253 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3254 appear in 0.9.8 or later. We EXPECT application authors to have
3255 dealt properly with this when 0.9.8 is released (unless we actually
3256 make such changes in the libcrypto locking code that changes will
3257 have to be made anyway).
3260 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3261 octets have been read, EOF or an error occurs. Without this change
3262 some truncated ASN1 structures will not produce an error.
3265 *) Disable Heimdal support, since it hasn't been fully implemented.
3266 Still give the possibility to force the use of Heimdal, but with
3267 warnings and a request that patches get sent to openssl-dev.
3270 *) Add the VC-CE target, introduce the WINCE sysname, and add
3271 INSTALL.WCE and appropriate conditionals to make it build.
3272 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3274 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3275 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3276 edit numbers of the version.
3277 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3279 *) Introduce safe string copy and catenation functions
3280 (BUF_strlcpy() and BUF_strlcat()).
3281 [Ben Laurie (CHATS) and Richard Levitte]
3283 *) Avoid using fixed-size buffers for one-line DNs.
3284 [Ben Laurie (CHATS)]
3286 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3287 resizing buffers containing secrets, and use where appropriate.
3288 [Ben Laurie (CHATS)]
3290 *) Avoid using fixed size buffers for configuration file location.
3291 [Ben Laurie (CHATS)]
3293 *) Avoid filename truncation for various CA files.
3294 [Ben Laurie (CHATS)]
3296 *) Use sizeof in preference to magic numbers.
3297 [Ben Laurie (CHATS)]
3299 *) Avoid filename truncation in cert requests.
3300 [Ben Laurie (CHATS)]
3302 *) Add assertions to check for (supposedly impossible) buffer
3304 [Ben Laurie (CHATS)]
3306 *) Don't cache truncated DNS entries in the local cache (this could
3307 potentially lead to a spoofing attack).
3308 [Ben Laurie (CHATS)]
3310 *) Fix various buffers to be large enough for hex/decimal
3311 representations in a platform independent manner.
3312 [Ben Laurie (CHATS)]
3314 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3315 resizing buffers containing secrets, and use where appropriate.
3316 [Ben Laurie (CHATS)]
3318 *) Add BIO_indent() to avoid much slightly worrying code to do
3320 [Ben Laurie (CHATS)]
3322 *) Convert sprintf()/BIO_puts() to BIO_printf().
3323 [Ben Laurie (CHATS)]
3325 *) buffer_gets() could terminate with the buffer only half
3327 [Ben Laurie (CHATS)]
3329 *) Add assertions to prevent user-supplied crypto functions from
3330 overflowing internal buffers by having large block sizes, etc.
3331 [Ben Laurie (CHATS)]
3333 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3335 [Ben Laurie (CHATS)]
3337 *) Eliminate unused copy of key in RC4.
3338 [Ben Laurie (CHATS)]
3340 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3341 [Ben Laurie (CHATS)]
3343 *) Fix off-by-one error in EGD path.
3344 [Ben Laurie (CHATS)]
3346 *) If RANDFILE path is too long, ignore instead of truncating.
3347 [Ben Laurie (CHATS)]
3349 *) Eliminate unused and incorrectly sized X.509 structure
3351 [Ben Laurie (CHATS)]
3353 *) Eliminate unused and dangerous function knumber().
3354 [Ben Laurie (CHATS)]
3356 *) Eliminate unused and dangerous structure, KSSL_ERR.
3357 [Ben Laurie (CHATS)]
3359 *) Protect against overlong session ID context length in an encoded
3360 session object. Since these are local, this does not appear to be
3362 [Ben Laurie (CHATS)]
3364 *) Change from security patch (see 0.9.6e below) that did not affect
3365 the 0.9.6 release series:
3367 Remote buffer overflow in SSL3 protocol - an attacker could
3368 supply an oversized master key in Kerberos-enabled versions.
3370 [Ben Laurie (CHATS)]
3372 *) Change the SSL kerb5 codes to match RFC 2712.
3375 *) Make -nameopt work fully for req and add -reqopt switch.
3376 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3378 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3379 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3381 *) Make sure tests can be performed even if the corresponding algorithms
3382 have been removed entirely. This was also the last step to make
3383 OpenSSL compilable with DJGPP under all reasonable conditions.
3384 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3386 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3387 to allow version independent disabling of normally unselected ciphers,
3388 which may be activated as a side-effect of selecting a single cipher.
3390 (E.g., cipher list string "RSA" enables ciphersuites that are left
3391 out of "ALL" because they do not provide symmetric encryption.
3392 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3393 [Lutz Jaenicke, Bodo Moeller]
3395 *) Add appropriate support for separate platform-dependent build
3396 directories. The recommended way to make a platform-dependent
3397 build directory is the following (tested on Linux), maybe with
3400 # Place yourself outside of the OpenSSL source tree. In
3401 # this example, the environment variable OPENSSL_SOURCE
3402 # is assumed to contain the absolute OpenSSL source directory.
3403 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3404 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3405 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3406 mkdir -p `dirname $F`
3407 ln -s $OPENSSL_SOURCE/$F $F
3410 To be absolutely sure not to disturb the source tree, a "make clean"
3411 is a good thing. If it isn't successfull, don't worry about it,
3412 it probably means the source directory is very clean.
3415 *) Make sure any ENGINE control commands make local copies of string
3416 pointers passed to them whenever necessary. Otherwise it is possible
3417 the caller may have overwritten (or deallocated) the original string
3418 data when a later ENGINE operation tries to use the stored values.
3419 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3421 *) Improve diagnostics in file reading and command-line digests.
3422 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3424 *) Add AES modes CFB and OFB to the object database. Correct an
3425 error in AES-CFB decryption.
3428 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3429 allows existing EVP_CIPHER_CTX structures to be reused after
3430 calling EVP_*Final(). This behaviour is used by encryption
3431 BIOs and some applications. This has the side effect that
3432 applications must explicitly clean up cipher contexts with
3433 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3436 *) Check the values of dna and dnb in bn_mul_recursive before calling
3437 bn_mul_comba (a non zero value means the a or b arrays do not contain
3438 n2 elements) and fallback to bn_mul_normal if either is not zero.
3441 *) Fix escaping of non-ASCII characters when using the -subj option
3442 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3445 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3446 form for "surname", serialNumber has no short form.
3447 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3448 therefore remove "mail" short name for "internet 7".
3449 The OID for unique identifiers in X509 certificates is
3450 x500UniqueIdentifier, not uniqueIdentifier.
3451 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3454 *) Add an "init" command to the ENGINE config module and auto initialize
3455 ENGINEs. Without any "init" command the ENGINE will be initialized
3456 after all ctrl commands have been executed on it. If init=1 the
3457 ENGINE is initailized at that point (ctrls before that point are run
3458 on the uninitialized ENGINE and after on the initialized one). If
3459 init=0 then the ENGINE will not be iniatialized at all.
3462 *) Fix the 'app_verify_callback' interface so that the user-defined
3463 argument is actually passed to the callback: In the
3464 SSL_CTX_set_cert_verify_callback() prototype, the callback
3465 declaration has been changed from
3468 int (*cb)(X509_STORE_CTX *,void *);
3469 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3470 i=s->ctx->app_verify_callback(&ctx)
3471 has been changed into
3472 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3474 To update applications using SSL_CTX_set_cert_verify_callback(),
3475 a dummy argument can be added to their callback functions.
3476 [D. K. Smetters <smetters@parc.xerox.com>]
3478 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3479 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3481 *) Add and OPENSSL_LOAD_CONF define which will cause
3482 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3483 This allows older applications to transparently support certain
3484 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3485 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3486 load the config file and OPENSSL_add_all_algorithms_conf() which will
3487 always load it have also been added.
3490 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3491 Adjust NIDs and EVP layer.
3492 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3494 *) Config modules support in openssl utility.
3496 Most commands now load modules from the config file,
3497 though in a few (such as version) this isn't done
3498 because it couldn't be used for anything.
3500 In the case of ca and req the config file used is
3501 the same as the utility itself: that is the -config
3502 command line option can be used to specify an
3506 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3507 use "openssl_conf" if filename is NULL use default openssl config file.
3510 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3511 config section name. Add a new flag to tolerate a missing config file
3512 and move code to CONF_modules_load_file().
3515 *) Support for crypto accelerator cards from Accelerated Encryption
3516 Processing, www.aep.ie. (Use engine 'aep')
3517 The support was copied from 0.9.6c [engine] and adapted/corrected
3518 to work with the new engine framework.
3519 [AEP Inc. and Richard Levitte]
3521 *) Support for SureWare crypto accelerator cards from Baltimore
3522 Technologies. (Use engine 'sureware')
3523 The support was copied from 0.9.6c [engine] and adapted
3524 to work with the new engine framework.
3527 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3528 make the newer ENGINE framework commands for the CHIL engine work.
3529 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3531 *) Make it possible to produce shared libraries on ReliantUNIX.
3532 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3534 *) Add the configuration target debug-linux-ppro.
3535 Make 'openssl rsa' use the general key loading routines
3536 implemented in apps.c, and make those routines able to
3537 handle the key format FORMAT_NETSCAPE and the variant
3539 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3541 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3542 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3544 *) Add -keyform to rsautl, and document -engine.
3545 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3547 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3548 BIO_R_NO_SUCH_FILE error code rather than the generic
3549 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3552 *) Add new functions
3554 ERR_peek_last_error_line
3555 ERR_peek_last_error_line_data.
3556 These are similar to
3559 ERR_peek_error_line_data,
3560 but report on the latest error recorded rather than the first one
3561 still in the error queue.
3562 [Ben Laurie, Bodo Moeller]
3564 *) default_algorithms option in ENGINE config module. This allows things
3566 default_algorithms = ALL
3567 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3570 *) Prelminary ENGINE config module.
3573 *) New experimental application configuration code.
3576 *) Change the AES code to follow the same name structure as all other
3577 symmetric ciphers, and behave the same way. Move everything to
3578 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3579 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3581 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3582 [Ben Laurie and Theo de Raadt]
3584 *) Add option to output public keys in req command.
3585 [Massimiliano Pala madwolf@openca.org]
3587 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3588 (up to about 10% better than before for P-192 and P-224).
3591 *) New functions/macros
3593 SSL_CTX_set_msg_callback(ctx, cb)
3594 SSL_CTX_set_msg_callback_arg(ctx, arg)
3595 SSL_set_msg_callback(ssl, cb)
3596 SSL_set_msg_callback_arg(ssl, arg)
3598 to request calling a callback function
3600 void cb(int write_p, int version, int content_type,
3601 const void *buf, size_t len, SSL *ssl, void *arg)
3603 whenever a protocol message has been completely received
3604 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3605 protocol version according to which the SSL library interprets
3606 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3607 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3608 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3609 specification (change_cipher_spec(20), alert(21), handshake(22)).
3610 'buf' and 'len' point to the actual message, 'ssl' to the
3611 SSL object, and 'arg' is the application-defined value set by
3612 SSL[_CTX]_set_msg_callback_arg().
3614 'openssl s_client' and 'openssl s_server' have new '-msg' options
3615 to enable a callback that displays all protocol messages.
3618 *) Change the shared library support so shared libraries are built as
3619 soon as the corresponding static library is finished, and thereby get
3620 openssl and the test programs linked against the shared library.
3621 This still only happens when the keyword "shard" has been given to
3622 the configuration scripts.
3624 NOTE: shared library support is still an experimental thing, and
3625 backward binary compatibility is still not guaranteed.
3626 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3628 *) Add support for Subject Information Access extension.
3629 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3631 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3632 additional bytes when new memory had to be allocated, not just
3633 when reusing an existing buffer.
3636 *) New command line and configuration option 'utf8' for the req command.
3637 This allows field values to be specified as UTF8 strings.
3640 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3641 runs for the former and machine-readable output for the latter.
3644 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3645 of the e-mail address in the DN (i.e., it will go into a certificate
3646 extension only). The new configuration file option 'email_in_dn = no'
3647 has the same effect.
3648 [Massimiliano Pala madwolf@openca.org]
3650 *) Change all functions with names starting with des_ to be starting
3651 with DES_ instead. Add wrappers that are compatible with libdes,
3652 but are named _ossl_old_des_*. Finally, add macros that map the
3653 des_* symbols to the corresponding _ossl_old_des_* if libdes
3654 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3655 desired, the des_* symbols will be mapped to DES_*, with one
3658 Since we provide two compatibility mappings, the user needs to
3659 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3660 compatibility is desired. The default (i.e., when that macro
3661 isn't defined) is OpenSSL 0.9.6c compatibility.
3663 There are also macros that enable and disable the support of old
3664 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3665 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3666 are defined, the default will apply: to support the old des routines.
3668 In either case, one must include openssl/des.h to get the correct
3669 definitions. Do not try to just include openssl/des_old.h, that
3672 NOTE: This is a major break of an old API into a new one. Software
3673 authors are encouraged to switch to the DES_ style functions. Some
3674 time in the future, des_old.h and the libdes compatibility functions
3675 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3676 default), and then completely removed.
3679 *) Test for certificates which contain unsupported critical extensions.
3680 If such a certificate is found during a verify operation it is
3681 rejected by default: this behaviour can be overridden by either
3682 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3683 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3684 X509_supported_extension() has also been added which returns 1 if a
3685 particular extension is supported.
3688 *) Modify the behaviour of EVP cipher functions in similar way to digests
3689 to retain compatibility with existing code.
3692 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3693 compatibility with existing code. In particular the 'ctx' parameter does
3694 not have to be to be initialized before the call to EVP_DigestInit() and
3695 it is tidied up after a call to EVP_DigestFinal(). New function
3696 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3697 EVP_MD_CTX_copy() changed to not require the destination to be
3698 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3699 requires the destination to be valid.
3701 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3702 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3705 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3706 so that complete 'Handshake' protocol structures are kept in memory
3707 instead of overwriting 'msg_type' and 'length' with 'body' data.
3710 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3711 [Massimo Santin via Richard Levitte]
3713 *) Major restructuring to the underlying ENGINE code. This includes
3714 reduction of linker bloat, separation of pure "ENGINE" manipulation
3715 (initialisation, etc) from functionality dealing with implementations
3716 of specific crypto iterfaces. This change also introduces integrated
3717 support for symmetric ciphers and digest implementations - so ENGINEs
3718 can now accelerate these by providing EVP_CIPHER and EVP_MD
3719 implementations of their own. This is detailed in crypto/engine/README
3720 as it couldn't be adequately described here. However, there are a few
3721 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3722 were changed in the original introduction of ENGINE code have now
3723 reverted back - the hooking from this code to ENGINE is now a good
3724 deal more passive and at run-time, operations deal directly with
3725 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3726 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3727 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3728 they were not being used by the framework as there is no concept of a
3729 BIGNUM_METHOD and they could not be generalised to the new
3730 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3731 ENGINE_cpy() has been removed as it cannot be consistently defined in
3735 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3738 *) Change mkdef.pl to sort symbols that get the same entry number,
3739 and make sure the automatically generated functions ERR_load_*
3740 become part of libeay.num as well.
3743 *) New function SSL_renegotiate_pending(). This returns true once
3744 renegotiation has been requested (either SSL_renegotiate() call
3745 or HelloRequest/ClientHello receveived from the peer) and becomes
3746 false once a handshake has been completed.
3747 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3748 sends a HelloRequest, but does not ensure that a handshake takes
3749 place. SSL_renegotiate_pending() is useful for checking if the
3750 client has followed the request.)
3753 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3754 By default, clients may request session resumption even during
3755 renegotiation (if session ID contexts permit); with this option,
3756 session resumption is possible only in the first handshake.
3758 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3759 more bits available for options that should not be part of
3760 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3763 *) Add some demos for certificate and certificate request creation.
3766 *) Make maximum certificate chain size accepted from the peer application
3767 settable (SSL*_get/set_max_cert_list()), as proposed by
3768 "Douglas E. Engert" <deengert@anl.gov>.
3771 *) Add support for shared libraries for Unixware-7
3772 (Boyd Lynn Gerber <gerberb@zenez.com>).
3775 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3776 be done prior to destruction. Use this to unload error strings from
3777 ENGINEs that load their own error strings. NB: This adds two new API
3778 functions to "get" and "set" this destroy handler in an ENGINE.
3781 *) Alter all existing ENGINE implementations (except "openssl" and
3782 "openbsd") to dynamically instantiate their own error strings. This
3783 makes them more flexible to be built both as statically-linked ENGINEs
3784 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3785 Also, add stub code to each that makes building them as self-contained
3786 shared-libraries easier (see README.ENGINE).
3789 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3790 implementations into applications that are completely implemented in
3791 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3792 commands that can be used to configure what shared-library to load and
3793 to control aspects of the way it is handled. Also, made an update to
3794 the README.ENGINE file that brings its information up-to-date and
3795 provides some information and instructions on the "dynamic" ENGINE
3796 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3799 *) Make it possible to unload ranges of ERR strings with a new
3800 "ERR_unload_strings" function.
3803 *) Add a copy() function to EVP_MD.
3806 *) Make EVP_MD routines take a context pointer instead of just the
3807 md_data void pointer.
3810 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3811 that the digest can only process a single chunk of data
3812 (typically because it is provided by a piece of
3813 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3814 is only going to provide a single chunk of data, and hence the
3815 framework needn't accumulate the data for oneshot drivers.
3818 *) As with "ERR", make it possible to replace the underlying "ex_data"
3819 functions. This change also alters the storage and management of global
3820 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3821 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3822 index counters. The API functions that use this state have been changed
3823 to take a "class_index" rather than pointers to the class's local STACK
3824 and counter, and there is now an API function to dynamically create new
3825 classes. This centralisation allows us to (a) plug a lot of the
3826 thread-safety problems that existed, and (b) makes it possible to clean
3827 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3828 such data would previously have always leaked in application code and
3829 workarounds were in place to make the memory debugging turn a blind eye
3830 to it. Application code that doesn't use this new function will still
3831 leak as before, but their memory debugging output will announce it now
3832 rather than letting it slide.
3834 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3835 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3836 has a return value to indicate success or failure.
3839 *) Make it possible to replace the underlying "ERR" functions such that the
3840 global state (2 LHASH tables and 2 locks) is only used by the "default"
3841 implementation. This change also adds two functions to "get" and "set"
3842 the implementation prior to it being automatically set the first time
3843 any other ERR function takes place. Ie. an application can call "get",
3844 pass the return value to a module it has just loaded, and that module
3845 can call its own "set" function using that value. This means the
3846 module's "ERR" operations will use (and modify) the error state in the
3847 application and not in its own statically linked copy of OpenSSL code.
3850 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3851 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3852 the operation, and provides a more encapsulated way for external code
3853 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3854 to use these functions rather than manually incrementing the counts.
3856 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3859 *) Add EVP test program.
3862 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3865 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3866 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3867 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3868 These allow a CRL to be built without having to access X509_CRL fields
3869 directly. Modify 'ca' application to use new functions.
3872 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3873 bug workarounds. Rollback attack detection is a security feature.
3874 The problem will only arise on OpenSSL servers when TLSv1 is not
3875 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3876 Software authors not wanting to support TLSv1 will have special reasons
3877 for their choice and can explicitly enable this option.
3878 [Bodo Moeller, Lutz Jaenicke]
3880 *) Rationalise EVP so it can be extended: don't include a union of
3881 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3882 (similar to those existing for EVP_CIPHER_CTX).
3887 EVP_MD_CTX_init(&md); /* new function call */
3888 EVP_DigestInit(&md, EVP_sha1());
3889 EVP_DigestUpdate(&md, in, len);
3890 EVP_DigestFinal(&md, out, NULL);
3891 EVP_MD_CTX_cleanup(&md); /* new function call */
3895 *) Make DES key schedule conform to the usual scheme, as well as
3896 correcting its structure. This means that calls to DES functions
3897 now have to pass a pointer to a des_key_schedule instead of a
3898 plain des_key_schedule (which was actually always a pointer
3901 des_key_schedule ks;
3903 des_set_key_checked(..., &ks);
3904 des_ncbc_encrypt(..., &ks, ...);
3906 (Note that a later change renames 'des_...' into 'DES_...'.)
3909 *) Initial reduction of linker bloat: the use of some functions, such as
3910 PEM causes large amounts of unused functions to be linked in due to
3911 poor organisation. For example pem_all.c contains every PEM function
3912 which has a knock on effect of linking in large amounts of (unused)
3913 ASN1 code. Grouping together similar functions and splitting unrelated
3914 functions prevents this.
3917 *) Cleanup of EVP macros.
3920 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3921 correct _ecb suffix.
3924 *) Add initial OCSP responder support to ocsp application. The
3925 revocation information is handled using the text based index
3926 use by the ca application. The responder can either handle
3927 requests generated internally, supplied in files (for example
3928 via a CGI script) or using an internal minimal server.
3931 *) Add configuration choices to get zlib compression for TLS.
3934 *) Changes to Kerberos SSL for RFC 2712 compliance:
3935 1. Implemented real KerberosWrapper, instead of just using
3936 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3937 2. Implemented optional authenticator field of KerberosWrapper.
3939 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3940 and authenticator structs; see crypto/krb5/.
3942 Generalized Kerberos calls to support multiple Kerberos libraries.
3943 [Vern Staats <staatsvr@asc.hpc.mil>,
3944 Jeffrey Altman <jaltman@columbia.edu>
3945 via Richard Levitte]
3947 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3948 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3949 values for each of the key sizes rather than having just
3950 parameters (and 'speed' generating keys each time).
3953 *) Speed up EVP routines.
3956 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3957 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3958 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3959 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3961 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3962 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3963 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3966 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3968 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3971 *) Added the OS2-EMX target.
3972 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3974 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3975 to support NCONF routines in extension code. New function CONF_set_nconf()
3976 to allow functions which take an NCONF to also handle the old LHASH
3977 structure: this means that the old CONF compatible routines can be
3978 retained (in particular wrt extensions) without having to duplicate the
3979 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3982 *) Enhance the general user interface with mechanisms for inner control
3983 and with possibilities to have yes/no kind of prompts.
3986 *) Change all calls to low level digest routines in the library and
3987 applications to use EVP. Add missing calls to HMAC_cleanup() and
3988 don't assume HMAC_CTX can be copied using memcpy().
3989 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3991 *) Add the possibility to control engines through control names but with
3992 arbitrary arguments instead of just a string.
3993 Change the key loaders to take a UI_METHOD instead of a callback
3994 function pointer. NOTE: this breaks binary compatibility with earlier
3995 versions of OpenSSL [engine].
3996 Adapt the nCipher code for these new conditions and add a card insertion
4000 *) Enhance the general user interface with mechanisms to better support
4001 dialog box interfaces, application-defined prompts, the possibility
4002 to use defaults (for example default passwords from somewhere else)
4003 and interrupts/cancellations.
4006 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4007 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4010 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4011 tidy up some unnecessarily weird code in 'sk_new()').
4012 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4014 *) Change the key loading routines for ENGINEs to use the same kind
4015 callback (pem_password_cb) as all other routines that need this
4019 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4020 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4021 than this minimum value is recommended.
4024 *) New random seeder for OpenVMS, using the system process statistics
4025 that are easily reachable.
4028 *) Windows apparently can't transparently handle global
4029 variables defined in DLLs. Initialisations such as:
4031 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4033 wont compile. This is used by the any applications that need to
4034 declare their own ASN1 modules. This was fixed by adding the option
4035 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4036 needed for static libraries under Win32.
4039 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4040 setting of purpose and trust fields. New X509_STORE trust and
4041 purpose functions and tidy up setting in other SSL functions.
4044 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4045 structure. These are inherited by X509_STORE_CTX when it is
4046 initialised. This allows various defaults to be set in the
4047 X509_STORE structure (such as flags for CRL checking and custom
4048 purpose or trust settings) for functions which only use X509_STORE_CTX
4049 internally such as S/MIME.
4051 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4052 trust settings if they are not set in X509_STORE. This allows X509_STORE
4053 purposes and trust (in S/MIME for example) to override any set by default.
4055 Add command line options for CRL checking to smime, s_client and s_server
4059 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4060 are set then the CRL is looked up in the X509_STORE structure and
4061 its validity and signature checked, then if the certificate is found
4062 in the CRL the verify fails with a revoked error.
4064 Various new CRL related callbacks added to X509_STORE_CTX structure.
4066 Command line options added to 'verify' application to support this.
4068 This needs some additional work, such as being able to handle multiple
4069 CRLs with different times, extension based lookup (rather than just
4070 by subject name) and ultimately more complete V2 CRL extension
4074 *) Add a general user interface API (crypto/ui/). This is designed
4075 to replace things like des_read_password and friends (backward
4076 compatibility functions using this new API are provided).
4077 The purpose is to remove prompting functions from the DES code
4078 section as well as provide for prompting through dialog boxes in
4079 a window system and the like.
4082 *) Add "ex_data" support to ENGINE so implementations can add state at a
4083 per-structure level rather than having to store it globally.
4086 *) Make it possible for ENGINE structures to be copied when retrieved by
4087 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4088 This causes the "original" ENGINE structure to act like a template,
4089 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4090 operational state can be localised to each ENGINE structure, despite the
4091 fact they all share the same "methods". New ENGINE structures returned in
4092 this case have no functional references and the return value is the single
4093 structural reference. This matches the single structural reference returned
4094 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4098 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4099 needs to match any other type at all we need to manually clear the
4103 *) Changes to the "openssl engine" utility to include;
4104 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4105 about an ENGINE's available control commands.
4106 - executing control commands from command line arguments using the
4107 '-pre' and '-post' switches. '-post' is only used if '-t' is
4108 specified and the ENGINE is successfully initialised. The syntax for
4109 the individual commands are colon-separated, for example;
4110 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4113 *) New dynamic control command support for ENGINEs. ENGINEs can now
4114 declare their own commands (numbers), names (strings), descriptions,
4115 and input types for run-time discovery by calling applications. A
4116 subset of these commands are implicitly classed as "executable"
4117 depending on their input type, and only these can be invoked through
4118 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4119 can be based on user input, config files, etc). The distinction is
4120 that "executable" commands cannot return anything other than a boolean
4121 result and can only support numeric or string input, whereas some
4122 discoverable commands may only be for direct use through
4123 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4124 pointers, or other custom uses. The "executable" commands are to
4125 support parameterisations of ENGINE behaviour that can be
4126 unambiguously defined by ENGINEs and used consistently across any
4127 OpenSSL-based application. Commands have been added to all the
4128 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4129 control over shared-library paths without source code alterations.
4132 *) Changed all ENGINE implementations to dynamically allocate their
4133 ENGINEs rather than declaring them statically. Apart from this being
4134 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4135 this also allows the implementations to compile without using the
4136 internal engine_int.h header.
4139 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4140 'const' value. Any code that should be able to modify a RAND_METHOD
4141 should already have non-const pointers to it (ie. they should only
4142 modify their own ones).
4145 *) Made a variety of little tweaks to the ENGINE code.
4146 - "atalla" and "ubsec" string definitions were moved from header files
4147 to C code. "nuron" string definitions were placed in variables
4148 rather than hard-coded - allowing parameterisation of these values
4149 later on via ctrl() commands.
4150 - Removed unused "#if 0"'d code.
4151 - Fixed engine list iteration code so it uses ENGINE_free() to release
4152 structural references.
4153 - Constified the RAND_METHOD element of ENGINE structures.
4154 - Constified various get/set functions as appropriate and added
4155 missing functions (including a catch-all ENGINE_cpy that duplicates
4156 all ENGINE values onto a new ENGINE except reference counts/state).
4157 - Removed NULL parameter checks in get/set functions. Setting a method
4158 or function to NULL is a way of cancelling out a previously set
4159 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4160 and doesn't justify the extra error symbols and code.
4161 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4162 flags from engine_int.h to engine.h.
4163 - Changed prototypes for ENGINE handler functions (init(), finish(),
4164 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4167 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4168 to the algorithm using long division. The binary algorithm can be
4169 used only if the modulus is odd. On 32-bit systems, it is faster
4170 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4171 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4172 up to 450 bits. In 64-bit environments, the binary algorithm
4173 appears to be advantageous for much longer moduli; here we use it
4174 for moduli up to 2048 bits.
4177 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4178 could not support the combine flag in choice fields.
4181 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4182 extensions from a certificate request to the certificate.
4185 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4186 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4187 file: this allows the display of the certificate about to be
4188 signed to be customised, to allow certain fields to be included
4189 or excluded and extension details. The old system didn't display
4190 multicharacter strings properly, omitted fields not in the policy
4191 and couldn't display additional details such as extensions.
4194 *) Function EC_POINTs_mul for multiple scalar multiplication
4195 of an arbitrary number of elliptic curve points
4196 \sum scalars[i]*points[i],
4197 optionally including the generator defined for the EC_GROUP:
4198 scalar*generator + \sum scalars[i]*points[i].
4200 EC_POINT_mul is a simple wrapper function for the typical case
4201 that the point list has just one item (besides the optional
4205 *) First EC_METHODs for curves over GF(p):
4207 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4208 operations and provides various method functions that can also
4209 operate with faster implementations of modular arithmetic.
4211 EC_GFp_mont_method() reuses most functions that are part of
4212 EC_GFp_simple_method, but uses Montgomery arithmetic.
4214 [Bodo Moeller; point addition and point doubling
4215 implementation directly derived from source code provided by
4216 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4218 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4219 crypto/ec/ec_lib.c):
4221 Curves are EC_GROUP objects (with an optional group generator)
4222 based on EC_METHODs that are built into the library.
4224 Points are EC_POINT objects based on EC_GROUP objects.
4226 Most of the framework would be able to handle curves over arbitrary
4227 finite fields, but as there are no obvious types for fields other
4228 than GF(p), some functions are limited to that for now.
4231 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4232 that the file contains a complete HTTP response.
4235 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4236 change the def and num file printf format specifier from "%-40sXXX"
4237 to "%-39s XXX". The latter will always guarantee a space after the
4238 field while the former will cause them to run together if the field
4239 is 40 of more characters long.
4242 *) Constify the cipher and digest 'method' functions and structures
4243 and modify related functions to take constant EVP_MD and EVP_CIPHER
4247 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4248 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4251 *) Modify EVP_Digest*() routines so they now return values. Although the
4252 internal software routines can never fail additional hardware versions
4256 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4258 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4259 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4262 ERR_R_NESTED_ASN1_ERROR
4264 ERR_R_MISSING_ASN1_EOS
4265 were 4 .. 9, conflicting with
4266 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4268 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4269 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4271 Add new error code 'ERR_R_INTERNAL_ERROR'.
4274 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4278 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4279 sets the subject name for a new request or supersedes the
4280 subject name in a given request. Formats that can be parsed are
4281 'CN=Some Name, OU=myOU, C=IT'
4283 'CN=Some Name/OU=myOU/C=IT'.
4285 Add options '-batch' and '-verbose' to 'openssl req'.
4286 [Massimiliano Pala <madwolf@hackmasters.net>]
4288 *) Introduce the possibility to access global variables through
4289 functions on platform were that's the best way to handle exporting
4290 global variables in shared libraries. To enable this functionality,
4291 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4292 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4293 is normally done by Configure or something similar).
4295 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4296 in the source file (foo.c) like this:
4298 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4299 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4301 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4302 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4304 OPENSSL_DECLARE_GLOBAL(int,foo);
4305 #define foo OPENSSL_GLOBAL_REF(foo)
4306 OPENSSL_DECLARE_GLOBAL(double,bar);
4307 #define bar OPENSSL_GLOBAL_REF(bar)
4309 The #defines are very important, and therefore so is including the
4310 header file everywhere where the defined globals are used.
4312 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4313 of ASN.1 items, but that structure is a bit different.
4315 The largest change is in util/mkdef.pl which has been enhanced with
4316 better and easier to understand logic to choose which symbols should
4317 go into the Windows .def files as well as a number of fixes and code
4318 cleanup (among others, algorithm keywords are now sorted
4319 lexicographically to avoid constant rewrites).
4322 *) In BN_div() keep a copy of the sign of 'num' before writing the
4323 result to 'rm' because if rm==num the value will be overwritten
4324 and produce the wrong result if 'num' is negative: this caused
4325 problems with BN_mod() and BN_nnmod().
4328 *) Function OCSP_request_verify(). This checks the signature on an
4329 OCSP request and verifies the signer certificate. The signer
4330 certificate is just checked for a generic purpose and OCSP request
4334 *) Add OCSP_check_validity() function to check the validity of OCSP
4335 responses. OCSP responses are prepared in real time and may only
4336 be a few seconds old. Simply checking that the current time lies
4337 between thisUpdate and nextUpdate max reject otherwise valid responses
4338 caused by either OCSP responder or client clock inaccuracy. Instead
4339 we allow thisUpdate and nextUpdate to fall within a certain period of
4340 the current time. The age of the response can also optionally be
4341 checked. Two new options -validity_period and -status_age added to
4345 *) If signature or public key algorithm is unrecognized print out its
4346 OID rather that just UNKNOWN.
4349 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4350 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4351 ID to be generated from the issuer certificate alone which can then be
4352 passed to OCSP_id_issuer_cmp().
4355 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4356 ASN1 modules to export functions returning ASN1_ITEM pointers
4357 instead of the ASN1_ITEM structures themselves. This adds several
4358 new macros which allow the underlying ASN1 function/structure to
4359 be accessed transparently. As a result code should not use ASN1_ITEM
4360 references directly (such as &X509_it) but instead use the relevant
4361 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4362 use of the new ASN1 code on platforms where exporting structures
4363 is problematical (for example in shared libraries) but exporting
4364 functions returning pointers to structures is not.
4367 *) Add support for overriding the generation of SSL/TLS session IDs.
4368 These callbacks can be registered either in an SSL_CTX or per SSL.
4369 The purpose of this is to allow applications to control, if they wish,
4370 the arbitrary values chosen for use as session IDs, particularly as it
4371 can be useful for session caching in multiple-server environments. A
4372 command-line switch for testing this (and any client code that wishes
4373 to use such a feature) has been added to "s_server".
4374 [Geoff Thorpe, Lutz Jaenicke]
4376 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4377 of the form '#if defined(...) || defined(...) || ...' and
4378 '#if !defined(...) && !defined(...) && ...'. This also avoids
4379 the growing number of special cases it was previously handling.
4382 *) Make all configuration macros available for application by making
4383 sure they are available in opensslconf.h, by giving them names starting
4384 with "OPENSSL_" to avoid conflicts with other packages and by making
4385 sure e_os2.h will cover all platform-specific cases together with
4387 Additionally, it is now possible to define configuration/platform-
4388 specific names (called "system identities"). In the C code, these
4389 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4390 macro with the name beginning with "OPENSSL_SYS_", which is determined
4391 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4395 *) New option -set_serial to 'req' and 'x509' this allows the serial
4396 number to use to be specified on the command line. Previously self
4397 signed certificates were hard coded with serial number 0 and the
4398 CA options of 'x509' had to use a serial number in a file which was
4402 *) New options to 'ca' utility to support V2 CRL entry extensions.
4403 Currently CRL reason, invalidity date and hold instruction are
4404 supported. Add new CRL extensions to V3 code and some new objects.
4407 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4408 disable standard block padding (aka PKCS#5 padding) in the EVP
4409 API, which was previously mandatory. This means that the data is
4410 not padded in any way and so the total length much be a multiple
4411 of the block size, otherwise an error occurs.
4414 *) Initial (incomplete) OCSP SSL support.
4417 *) New function OCSP_parse_url(). This splits up a URL into its host,
4418 port and path components: primarily to parse OCSP URLs. New -url
4419 option to ocsp utility.
4422 *) New nonce behavior. The return value of OCSP_check_nonce() now
4423 reflects the various checks performed. Applications can decide
4424 whether to tolerate certain situations such as an absent nonce
4425 in a response when one was present in a request: the ocsp application
4426 just prints out a warning. New function OCSP_add1_basic_nonce()
4427 this is to allow responders to include a nonce in a response even if
4428 the request is nonce-less.
4431 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4432 skipped when using openssl x509 multiple times on a single input file,
4433 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4436 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4437 set string type: to handle setting ASN1_TIME structures. Fix ca
4438 utility to correctly initialize revocation date of CRLs.
4441 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4442 the clients preferred ciphersuites and rather use its own preferences.
4443 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4444 Internet Explorer by ensuring unchanged hash method during stepup.
4445 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4448 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4449 to aes and add a new 'exist' option to print out symbols that don't
4453 *) Additional options to ocsp utility to allow flags to be set and
4454 additional certificates supplied.
4457 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4458 OCSP client a number of certificate to only verify the response
4462 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4463 handle the new API. Currently only ECB, CBC modes supported. Add new
4466 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4467 Encryption Standard (AES) Ciphersuites for Transport Layer
4468 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4469 not enabled by default and were not part of the "ALL" ciphersuite
4470 alias because they were not yet official; they could be
4471 explicitly requested by specifying the "AESdraft" ciphersuite
4472 group alias. In the final release of OpenSSL 0.9.7, the group
4473 alias is called "AES" and is part of "ALL".)
4474 [Ben Laurie, Steve Henson, Bodo Moeller]
4476 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4477 request to response.
4480 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4481 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4482 extract information from a certificate request. OCSP_response_create()
4483 creates a response and optionally adds a basic response structure.
4484 OCSP_basic_add1_status() adds a complete single response to a basic
4485 response and returns the OCSP_SINGLERESP structure just added (to allow
4486 extensions to be included for example). OCSP_basic_add1_cert() adds a
4487 certificate to a basic response and OCSP_basic_sign() signs a basic
4488 response with various flags. New helper functions ASN1_TIME_check()
4489 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4490 (converts ASN1_TIME to GeneralizedTime).
4493 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4494 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4495 structure from a certificate. X509_pubkey_digest() digests the public_key
4496 contents: this is used in various key identifiers.
4499 *) Make sk_sort() tolerate a NULL argument.
4500 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4502 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4503 passed by the function are trusted implicitly. If any of them signed the
4504 response then it is assumed to be valid and is not verified.
4507 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4508 to data. This was previously part of the PKCS7 ASN1 code. This
4509 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4510 [Steve Henson, reported by Kenneth R. Robinette
4511 <support@securenetterm.com>]
4513 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4514 routines: without these tracing memory leaks is very painful.
4515 Fix leaks in PKCS12 and PKCS7 routines.
4518 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4519 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4520 effectively meant GeneralizedTime would never be used. Now it
4521 is initialised to -1 but X509_time_adj() now has to check the value
4522 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4523 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4524 [Steve Henson, reported by Kenneth R. Robinette
4525 <support@securenetterm.com>]
4527 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4528 result in a zero length in the ASN1_INTEGER structure which was
4529 not consistent with the structure when d2i_ASN1_INTEGER() was used
4530 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4531 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4532 where it did not print out a minus for negative ASN1_INTEGER.
4535 *) Add summary printout to ocsp utility. The various functions which
4536 convert status values to strings have been renamed to:
4537 OCSP_response_status_str(), OCSP_cert_status_str() and
4538 OCSP_crl_reason_str() and are no longer static. New options
4539 to verify nonce values and to disable verification. OCSP response
4540 printout format cleaned up.
4543 *) Add additional OCSP certificate checks. These are those specified
4544 in RFC2560. This consists of two separate checks: the CA of the
4545 certificate being checked must either be the OCSP signer certificate
4546 or the issuer of the OCSP signer certificate. In the latter case the
4547 OCSP signer certificate must contain the OCSP signing extended key
4548 usage. This check is performed by attempting to match the OCSP
4549 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4550 in the OCSP_CERTID structures of the response.
4553 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4554 and related routines. This uses the standard OpenSSL certificate
4555 verify routines to perform initial checks (just CA validity) and
4556 to obtain the certificate chain. Then additional checks will be
4557 performed on the chain. Currently the root CA is checked to see
4558 if it is explicitly trusted for OCSP signing. This is used to set
4559 a root CA as a global signing root: that is any certificate that
4560 chains to that CA is an acceptable OCSP signing certificate.
4563 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4564 extensions from a separate configuration file.
4565 As when reading extensions from the main configuration file,
4566 the '-extensions ...' option may be used for specifying the
4568 [Massimiliano Pala <madwolf@comune.modena.it>]
4570 *) New OCSP utility. Allows OCSP requests to be generated or
4571 read. The request can be sent to a responder and the output
4572 parsed, outputed or printed in text form. Not complete yet:
4573 still needs to check the OCSP response validity.
4576 *) New subcommands for 'openssl ca':
4577 'openssl ca -status <serial>' prints the status of the cert with
4578 the given serial number (according to the index file).
4579 'openssl ca -updatedb' updates the expiry status of certificates
4581 [Massimiliano Pala <madwolf@comune.modena.it>]
4583 *) New '-newreq-nodes' command option to CA.pl. This is like
4584 '-newreq', but calls 'openssl req' with the '-nodes' option
4585 so that the resulting key is not encrypted.
4586 [Damien Miller <djm@mindrot.org>]
4588 *) New configuration for the GNU Hurd.
4589 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4591 *) Initial code to implement OCSP basic response verify. This
4592 is currently incomplete. Currently just finds the signer's
4593 certificate and verifies the signature on the response.
4596 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4597 value of OPENSSLDIR. This is available via the new '-d' option
4598 to 'openssl version', and is also included in 'openssl version -a'.
4601 *) Allowing defining memory allocation callbacks that will be given
4602 file name and line number information in additional arguments
4603 (a const char* and an int). The basic functionality remains, as
4604 well as the original possibility to just replace malloc(),
4605 realloc() and free() by functions that do not know about these
4606 additional arguments. To register and find out the current
4607 settings for extended allocation functions, the following
4608 functions are provided:
4610 CRYPTO_set_mem_ex_functions
4611 CRYPTO_set_locked_mem_ex_functions
4612 CRYPTO_get_mem_ex_functions
4613 CRYPTO_get_locked_mem_ex_functions
4615 These work the same way as CRYPTO_set_mem_functions and friends.
4616 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4617 extended allocation function is enabled.
4618 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4619 a conventional allocation function is enabled.
4620 [Richard Levitte, Bodo Moeller]
4622 *) Finish off removing the remaining LHASH function pointer casts.
4623 There should no longer be any prototype-casting required when using
4624 the LHASH abstraction, and any casts that remain are "bugs". See
4625 the callback types and macros at the head of lhash.h for details
4626 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4629 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4630 If /dev/[u]random devices are not available or do not return enough
4631 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4633 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4634 /etc/entropy will be queried once each in this sequence, quering stops
4635 when enough entropy was collected without querying more sockets.
4638 *) Change the Unix RAND_poll() variant to be able to poll several
4639 random devices, as specified by DEVRANDOM, until a sufficient amount
4640 of data has been collected. We spend at most 10 ms on each file
4641 (select timeout) and read in non-blocking mode. DEVRANDOM now
4642 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4643 (previously it was just the string "/dev/urandom"), so on typical
4644 platforms the 10 ms delay will never occur.
4645 Also separate out the Unix variant to its own file, rand_unix.c.
4646 For VMS, there's a currently-empty rand_vms.c.
4649 *) Move OCSP client related routines to ocsp_cl.c. These
4650 provide utility functions which an application needing
4651 to issue a request to an OCSP responder and analyse the
4652 response will typically need: as opposed to those which an
4653 OCSP responder itself would need which will be added later.
4655 OCSP_request_sign() signs an OCSP request with an API similar
4656 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4657 response. OCSP_response_get1_basic() extracts basic response
4658 from response. OCSP_resp_find_status(): finds and extracts status
4659 information from an OCSP_CERTID structure (which will be created
4660 when the request structure is built). These are built from lower
4661 level functions which work on OCSP_SINGLERESP structures but
4662 wont normally be used unless the application wishes to examine
4663 extensions in the OCSP response for example.
4665 Replace nonce routines with a pair of functions.
4666 OCSP_request_add1_nonce() adds a nonce value and optionally
4667 generates a random value. OCSP_check_nonce() checks the
4668 validity of the nonce in an OCSP response.
4671 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4672 This doesn't copy the supplied OCSP_CERTID and avoids the
4673 need to free up the newly created id. Change return type
4674 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4675 This can then be used to add extensions to the request.
4676 Deleted OCSP_request_new(), since most of its functionality
4677 is now in OCSP_REQUEST_new() (and the case insensitive name
4678 clash) apart from the ability to set the request name which
4679 will be added elsewhere.
4682 *) Update OCSP API. Remove obsolete extensions argument from
4683 various functions. Extensions are now handled using the new
4684 OCSP extension code. New simple OCSP HTTP function which
4685 can be used to send requests and parse the response.
4688 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4689 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4690 uses the special reorder version of SET OF to sort the attributes
4691 and reorder them to match the encoded order. This resolves a long
4692 standing problem: a verify on a PKCS7 structure just after signing
4693 it used to fail because the attribute order did not match the
4694 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4695 it uses the received order. This is necessary to tolerate some broken
4696 software that does not order SET OF. This is handled by encoding
4697 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4698 to produce the required SET OF.
4701 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4702 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4703 files to get correct declarations of the ASN.1 item variables.
4706 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4707 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4708 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4709 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4710 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4711 ASN1_ITEM and no wrapper functions.
4714 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4715 replace the old function pointer based I/O routines. Change most of
4716 the *_d2i_bio() and *_d2i_fp() functions to use these.
4719 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4720 lines, recognice more "algorithms" that can be deselected, and make
4721 it complain about algorithm deselection that isn't recognised.
4724 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4725 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4726 to use new functions. Add NO_ASN1_OLD which can be set to remove
4727 some old style ASN1 functions: this can be used to determine if old
4728 code will still work when these eventually go away.
4731 *) New extension functions for OCSP structures, these follow the
4732 same conventions as certificates and CRLs.
4735 *) New function X509V3_add1_i2d(). This automatically encodes and
4736 adds an extension. Its behaviour can be customised with various
4737 flags to append, replace or delete. Various wrappers added for
4738 certifcates and CRLs.
4741 *) Fix to avoid calling the underlying ASN1 print routine when
4742 an extension cannot be parsed. Correct a typo in the
4743 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4746 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4747 entries for variables.
4750 *) Add functionality to apps/openssl.c for detecting locking
4751 problems: As the program is single-threaded, all we have
4752 to do is register a locking callback using an array for
4753 storing which locks are currently held by the program.
4756 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4757 SSL_get_ex_data_X509_STORE_idx(), which is used in
4758 ssl_verify_cert_chain() and thus can be called at any time
4759 during TLS/SSL handshakes so that thread-safety is essential.
4760 Unfortunately, the ex_data design is not at all suited
4761 for multi-threaded use, so it probably should be abolished.
4764 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4765 [Broadcom, tweaked and integrated by Geoff Thorpe]
4767 *) Move common extension printing code to new function
4768 X509V3_print_extensions(). Reorganise OCSP print routines and
4769 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4772 *) New function X509_signature_print() to remove duplication in some
4776 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4777 set (this was treated exactly the same as SET OF previously). This
4778 is used to reorder the STACK representing the structure to match the
4779 encoding. This will be used to get round a problem where a PKCS7
4780 structure which was signed could not be verified because the STACK
4781 order did not reflect the encoded order.
4784 *) Reimplement the OCSP ASN1 module using the new code.
4787 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4788 for its ASN1 operations. The old style function pointers still exist
4789 for now but they will eventually go away.
4792 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4793 completely replaces the old ASN1 functionality with a table driven
4794 encoder and decoder which interprets an ASN1_ITEM structure describing
4795 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4796 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4797 has also been converted to the new form.
4800 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4801 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4802 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4803 for negative moduli.
4806 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4807 of not touching the result's sign bit.
4810 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4814 *) Changed the LHASH code to use prototypes for callbacks, and created
4815 macros to declare and implement thin (optionally static) functions
4816 that provide type-safety and avoid function pointer casting for the
4817 type-specific callbacks.
4820 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4822 [Veers Staats <staatsvr@asc.hpc.mil>,
4823 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4825 *) Reformat the FAQ so the different questions and answers can be divided
4826 in sections depending on the subject.
4829 *) Have the zlib compression code load ZLIB.DLL dynamically under
4833 *) New function BN_mod_sqrt for computing square roots modulo a prime
4834 (using the probabilistic Tonelli-Shanks algorithm unless
4835 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4836 be handled deterministically).
4837 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4839 *) Make BN_mod_inverse faster by explicitly handling small quotients
4840 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4841 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4844 *) New function BN_kronecker.
4847 *) Fix BN_gcd so that it works on negative inputs; the result is
4848 positive unless both parameters are zero.
4849 Previously something reasonably close to an infinite loop was
4850 possible because numbers could be growing instead of shrinking
4851 in the implementation of Euclid's algorithm.
4854 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4855 sign of the number in question.
4857 Fix BN_is_word(a,w) to work correctly for w == 0.
4859 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4860 because its test if the absolute value of 'a' equals 'w'.
4861 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4862 it exists mostly for use in the implementations of BN_is_zero(),
4863 BN_is_one(), and BN_is_word().
4866 *) New function BN_swap.
4869 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4870 the exponentiation functions are more likely to produce reasonable
4871 results on negative inputs.
4874 *) Change BN_mod_mul so that the result is always non-negative.
4875 Previously, it could be negative if one of the factors was negative;
4876 I don't think anyone really wanted that behaviour.
4879 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4880 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4881 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4882 and add new functions:
4891 BN_mod_lshift1_quick
4895 These functions always generate non-negative results.
4897 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4898 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4900 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4901 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4902 be reduced modulo m.
4903 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4906 The following entry accidentily appeared in the CHANGES file
4907 distributed with OpenSSL 0.9.7. The modifications described in
4908 it do *not* apply to OpenSSL 0.9.7.
4910 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4911 was actually never needed) and in BN_mul(). The removal in BN_mul()
4912 required a small change in bn_mul_part_recursive() and the addition
4913 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4914 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4915 bn_sub_words() and bn_add_words() except they take arrays with
4920 *) In 'openssl passwd', verify passwords read from the terminal
4921 unless the '-salt' option is used (which usually means that
4922 verification would just waste user's time since the resulting
4923 hash is going to be compared with some given password hash)
4924 or the new '-noverify' option is used.
4926 This is an incompatible change, but it does not affect
4927 non-interactive use of 'openssl passwd' (passwords on the command
4928 line, '-stdin' option, '-in ...' option) and thus should not
4932 *) Remove all references to RSAref, since there's no more need for it.
4935 *) Make DSO load along a path given through an environment variable
4936 (SHLIB_PATH) with shl_load().
4939 *) Constify the ENGINE code as a result of BIGNUM constification.
4940 Also constify the RSA code and most things related to it. In a
4941 few places, most notable in the depth of the ASN.1 code, ugly
4942 casts back to non-const were required (to be solved at a later
4946 *) Make it so the openssl application has all engines loaded by default.
4949 *) Constify the BIGNUM routines a little more.
4952 *) Add the following functions:
4954 ENGINE_load_cswift()
4956 ENGINE_load_atalla()
4958 ENGINE_load_builtin_engines()
4960 That way, an application can itself choose if external engines that
4961 are built-in in OpenSSL shall ever be used or not. The benefit is
4962 that applications won't have to be linked with libdl or other dso
4963 libraries unless it's really needed.
4965 Changed 'openssl engine' to load all engines on demand.
4966 Changed the engine header files to avoid the duplication of some
4967 declarations (they differed!).
4970 *) 'openssl engine' can now list capabilities.
4973 *) Better error reporting in 'openssl engine'.
4976 *) Never call load_dh_param(NULL) in s_server.
4979 *) Add engine application. It can currently list engines by name and
4980 identity, and test if they are actually available.
4983 *) Improve RPM specification file by forcing symbolic linking and making
4984 sure the installed documentation is also owned by root.root.
4985 [Damien Miller <djm@mindrot.org>]
4987 *) Give the OpenSSL applications more possibilities to make use of
4988 keys (public as well as private) handled by engines.
4991 *) Add OCSP code that comes from CertCo.
4994 *) Add VMS support for the Rijndael code.
4997 *) Added untested support for Nuron crypto accelerator.
5000 *) Add support for external cryptographic devices. This code was
5001 previously distributed separately as the "engine" branch.
5002 [Geoff Thorpe, Richard Levitte]
5004 *) Rework the filename-translation in the DSO code. It is now possible to
5005 have far greater control over how a "name" is turned into a filename
5006 depending on the operating environment and any oddities about the
5007 different shared library filenames on each system.
5010 *) Support threads on FreeBSD-elf in Configure.
5013 *) Fix for SHA1 assembly problem with MASM: it produces
5014 warnings about corrupt line number information when assembling
5015 with debugging information. This is caused by the overlapping
5017 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5020 NCONF_get_number() has no error checking at all. As a replacement,
5021 NCONF_get_number_e() is defined (_e for "error checking") and is
5022 promoted strongly. The old NCONF_get_number is kept around for
5023 binary backward compatibility.
5024 Make it possible for methods to load from something other than a BIO,
5025 by providing a function pointer that is given a name instead of a BIO.
5026 For example, this could be used to load configuration data from an
5030 *) Fix for non blocking accept BIOs. Added new I/O special reason
5031 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5032 with non blocking I/O was not possible because no retry code was
5033 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5037 *) Added the beginnings of Rijndael support.
5040 *) Fix for bug in DirectoryString mask setting. Add support for
5041 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5042 to allow certificate printing to more controllable, additional
5043 'certopt' option to 'x509' to allow new printing options to be
5047 *) Clean old EAY MD5 hack from e_os.h.
5050 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5052 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5053 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5054 [Joe Orton, Steve Henson]
5056 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5058 *) Fix additional bug revealed by the NISCC test suite:
5060 Stop bug triggering large recursion when presented with
5061 certain ASN.1 tags (CVE-2003-0851)
5064 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5066 *) Fix various bugs revealed by running the NISCC test suite:
5068 Stop out of bounds reads in the ASN1 code when presented with
5069 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5071 If verify callback ignores invalid public key errors don't try to check
5072 certificate signature with the NULL public key.
5076 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5077 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5081 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5082 extra data after the compression methods not only for TLS 1.0
5083 but also for SSL 3.0 (as required by the specification).
5084 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5086 *) Change X509_certificate_type() to mark the key as exported/exportable
5087 when it's 512 *bits* long, not 512 bytes.
5090 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5092 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5093 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5094 a protocol version number mismatch like a decryption error
5095 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5098 *) Turn on RSA blinding by default in the default implementation
5099 to avoid a timing attack. Applications that don't want it can call
5100 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5101 They would be ill-advised to do so in most cases.
5102 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5104 *) Change RSA blinding code so that it works when the PRNG is not
5105 seeded (in this case, the secret RSA exponent is abused as
5106 an unpredictable seed -- if it is not unpredictable, there
5107 is no point in blinding anyway). Make RSA blinding thread-safe
5108 by remembering the creator's thread ID in rsa->blinding and
5109 having all other threads use local one-time blinding factors
5110 (this requires more computation than sharing rsa->blinding, but
5111 avoids excessive locking; and if an RSA object is not shared
5112 between threads, blinding will still be very fast).
5115 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5117 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5118 via timing by performing a MAC computation even if incorrrect
5119 block cipher padding has been found. This is a countermeasure
5120 against active attacks where the attacker has to distinguish
5121 between bad padding and a MAC verification error. (CVE-2003-0078)
5123 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5124 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5125 Martin Vuagnoux (EPFL, Ilion)]
5127 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5129 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5130 memory from it's contents. This is done with a counter that will
5131 place alternating values in each byte. This can be used to solve
5132 two issues: 1) the removal of calls to memset() by highly optimizing
5133 compilers, and 2) cleansing with other values than 0, since those can
5134 be read through on certain media, for example a swap space on disk.
5137 *) Bugfix: client side session caching did not work with external caching,
5138 because the session->cipher setting was not restored when reloading
5139 from the external cache. This problem was masked, when
5140 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5141 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5144 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5145 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5146 [Zeev Lieber <zeev-l@yahoo.com>]
5148 *) Undo an undocumented change introduced in 0.9.6e which caused
5149 repeated calls to OpenSSL_add_all_ciphers() and
5150 OpenSSL_add_all_digests() to be ignored, even after calling
5154 *) Change the default configuration reader to deal with last line not
5155 being properly terminated.
5158 *) Change X509_NAME_cmp() so it applies the special rules on handling
5159 DN values that are of type PrintableString, as well as RDNs of type
5160 emailAddress where the value has the type ia5String.
5161 [stefank@valicert.com via Richard Levitte]
5163 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5164 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5165 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5166 the bitwise-OR of the two for use by the majority of applications
5167 wanting this behaviour, and update the docs. The documented
5168 behaviour and actual behaviour were inconsistent and had been
5169 changing anyway, so this is more a bug-fix than a behavioural
5171 [Geoff Thorpe, diagnosed by Nadav Har'El]
5173 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5174 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5177 *) Fix initialization code race conditions in
5178 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5179 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5180 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5181 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5182 ssl2_get_cipher_by_char(),
5183 ssl3_get_cipher_by_char().
5184 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5186 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5187 the cached sessions are flushed, as the remove_cb() might use ex_data
5188 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5189 (see [openssl.org #212]).
5190 [Geoff Thorpe, Lutz Jaenicke]
5192 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5193 length, instead of the encoding length to d2i_ASN1_OBJECT.
5196 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5198 *) [In 0.9.6g-engine release:]
5199 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5200 [Lynn Gazis <lgazis@rainbow.com>]
5202 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5204 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5205 and get fix the header length calculation.
5206 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5207 Alon Kantor <alonk@checkpoint.com> (and others),
5210 *) Use proper error handling instead of 'assertions' in buffer
5211 overflow checks added in 0.9.6e. This prevents DoS (the
5212 assertions could call abort()).
5213 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5215 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5217 *) Add various sanity checks to asn1_get_length() to reject
5218 the ASN1 length bytes if they exceed sizeof(long), will appear
5219 negative or the content length exceeds the length of the
5221 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5223 *) Fix cipher selection routines: ciphers without encryption had no flags
5224 for the cipher strength set and where therefore not handled correctly
5225 by the selection routines (PR #130).
5228 *) Fix EVP_dsa_sha macro.
5232 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5233 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5234 that was added in OpenSSL 0.9.6d.
5236 As the countermeasure turned out to be incompatible with some
5237 broken SSL implementations, the new option is part of SSL_OP_ALL.
5238 SSL_OP_ALL is usually employed when compatibility with weird SSL
5239 implementations is desired (e.g. '-bugs' option to 's_client' and
5240 's_server'), so the new option is automatically set in many
5244 *) Changes in security patch:
5246 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5247 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5248 Air Force Materiel Command, USAF, under agreement number
5251 *) Add various sanity checks to asn1_get_length() to reject
5252 the ASN1 length bytes if they exceed sizeof(long), will appear
5253 negative or the content length exceeds the length of the
5254 supplied buffer. (CVE-2002-0659)
5255 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5257 *) Assertions for various potential buffer overflows, not known to
5259 [Ben Laurie (CHATS)]
5261 *) Various temporary buffers to hold ASCII versions of integers were
5262 too small for 64 bit platforms. (CVE-2002-0655)
5263 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5265 *) Remote buffer overflow in SSL3 protocol - an attacker could
5266 supply an oversized session ID to a client. (CVE-2002-0656)
5267 [Ben Laurie (CHATS)]
5269 *) Remote buffer overflow in SSL2 protocol - an attacker could
5270 supply an oversized client master key. (CVE-2002-0656)
5271 [Ben Laurie (CHATS)]
5273 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5275 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5276 encoded as NULL) with id-dsa-with-sha1.
5277 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5279 *) Check various X509_...() return values in apps/req.c.
5280 [Nils Larsch <nla@trustcenter.de>]
5282 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5283 an end-of-file condition would erronously be flagged, when the CRLF
5284 was just at the end of a processed block. The bug was discovered when
5285 processing data through a buffering memory BIO handing the data to a
5286 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5287 <ptsekov@syntrex.com> and Nedelcho Stanev.
5290 *) Implement a countermeasure against a vulnerability recently found
5291 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5292 before application data chunks to avoid the use of known IVs
5293 with data potentially chosen by the attacker.
5296 *) Fix length checks in ssl3_get_client_hello().
5299 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5300 to prevent ssl3_read_internal() from incorrectly assuming that
5301 ssl3_read_bytes() found application data while handshake
5302 processing was enabled when in fact s->s3->in_read_app_data was
5303 merely automatically cleared during the initial handshake.
5304 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5306 *) Fix object definitions for Private and Enterprise: they were not
5307 recognized in their shortname (=lowercase) representation. Extend
5308 obj_dat.pl to issue an error when using undefined keywords instead
5309 of silently ignoring the problem (Svenning Sorensen
5310 <sss@sss.dnsalias.net>).
5313 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5314 generators, i.e. generators other than 2 and 5. (Previously, the
5315 code did not properly initialise the 'add' and 'rem' values to
5316 BN_generate_prime().)
5318 In the new general case, we do not insist that 'generator' is
5319 actually a primitive root: This requirement is rather pointless;
5320 a generator of the order-q subgroup is just as good, if not
5324 *) Map new X509 verification errors to alerts. Discovered and submitted by
5325 Tom Wu <tom@arcot.com>.
5328 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5329 returning non-zero before the data has been completely received
5330 when using non-blocking I/O.
5331 [Bodo Moeller; problem pointed out by John Hughes]
5333 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5334 [Ben Laurie, Lutz Jaenicke]
5336 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5337 Yoram Zahavi <YoramZ@gilian.com>).
5340 *) Add information about CygWin 1.3 and on, and preserve proper
5341 configuration for the versions before that.
5342 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5344 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5345 check whether we deal with a copy of a session and do not delete from
5346 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5347 <izhar@checkpoint.com>.
5350 *) Do not store session data into the internal session cache, if it
5351 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5352 flag is set). Proposed by Aslam <aslam@funk.com>.
5355 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5359 *) [In 0.9.6d-engine release:]
5360 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5361 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5363 *) Add the configuration target linux-s390x.
5364 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5366 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5367 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5368 variable as an indication that a ClientHello message has been
5369 received. As the flag value will be lost between multiple
5370 invocations of ssl3_accept when using non-blocking I/O, the
5371 function may not be aware that a handshake has actually taken
5372 place, thus preventing a new session from being added to the
5375 To avoid this problem, we now set s->new_session to 2 instead of
5376 using a local variable.
5377 [Lutz Jaenicke, Bodo Moeller]
5379 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5380 if the SSL_R_LENGTH_MISMATCH error is detected.
5381 [Geoff Thorpe, Bodo Moeller]
5383 *) New 'shared_ldflag' column in Configure platform table.
5386 *) Fix EVP_CIPHER_mode macro.
5387 ["Dan S. Camper" <dan@bti.net>]
5389 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5390 type, we must throw them away by setting rr->length to 0.
5391 [D P Chang <dpc@qualys.com>]
5393 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5395 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5396 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5397 worked incorrectly for those cases where range = 10..._2 and
5398 3*range is two bits longer than range.)
5401 *) Only add signing time to PKCS7 structures if it is not already
5405 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5406 OBJ_ld_ce should be OBJ_id_ce.
5407 Also some ip-pda OIDs in crypto/objects/objects.txt were
5408 incorrect (cf. RFC 3039).
5409 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5411 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5412 returns early because it has nothing to do.
5413 [Andy Schneider <andy.schneider@bjss.co.uk>]
5415 *) [In 0.9.6c-engine release:]
5416 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5417 [Andy Schneider <andy.schneider@bjss.co.uk>]
5419 *) [In 0.9.6c-engine release:]
5420 Add support for Cryptographic Appliance's keyserver technology.
5421 (Use engine 'keyclient')
5422 [Cryptographic Appliances and Geoff Thorpe]
5424 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5425 is called via tools/c89.sh because arguments have to be
5426 rearranged (all '-L' options must appear before the first object
5428 [Richard Shapiro <rshapiro@abinitio.com>]
5430 *) [In 0.9.6c-engine release:]
5431 Add support for Broadcom crypto accelerator cards, backported
5433 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5435 *) [In 0.9.6c-engine release:]
5436 Add support for SureWare crypto accelerator cards from
5437 Baltimore Technologies. (Use engine 'sureware')
5438 [Baltimore Technologies and Mark Cox]
5440 *) [In 0.9.6c-engine release:]
5441 Add support for crypto accelerator cards from Accelerated
5442 Encryption Processing, www.aep.ie. (Use engine 'aep')
5443 [AEP Inc. and Mark Cox]
5445 *) Add a configuration entry for gcc on UnixWare.
5446 [Gary Benson <gbenson@redhat.com>]
5448 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5449 messages are stored in a single piece (fixed-length part and
5450 variable-length part combined) and fix various bugs found on the way.
5453 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5454 instead. BIO_gethostbyname() does not know what timeouts are
5455 appropriate, so entries would stay in cache even when they have
5457 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5459 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5460 faced with a pathologically small ClientHello fragment that does
5461 not contain client_version: Instead of aborting with an error,
5462 simply choose the highest available protocol version (i.e.,
5463 TLS 1.0 unless it is disabled). In practice, ClientHello
5464 messages are never sent like this, but this change gives us
5465 strictly correct behaviour at least for TLS.
5468 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5469 never resets s->method to s->ctx->method when called from within
5470 one of the SSL handshake functions.
5471 [Bodo Moeller; problem pointed out by Niko Baric]
5473 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5474 (sent using the client's version number) if client_version is
5475 smaller than the protocol version in use. Also change
5476 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5477 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5478 the client will at least see that alert.
5481 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5485 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5486 client receives HelloRequest while in a handshake.
5487 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5489 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5490 should end in 'break', not 'goto end' which circuments various
5491 cleanups done in state SSL_ST_OK. But session related stuff
5492 must be disabled for SSL_ST_OK in the case that we just sent a
5495 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5496 before just sending a HelloRequest.
5497 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5499 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5500 reveal whether illegal block cipher padding was found or a MAC
5501 verification error occured. (Neither SSLerr() codes nor alerts
5502 are directly visible to potential attackers, but the information
5503 may leak via logfiles.)
5505 Similar changes are not required for the SSL 2.0 implementation
5506 because the number of padding bytes is sent in clear for SSL 2.0,
5507 and the extra bytes are just ignored. However ssl/s2_pkt.c
5508 failed to verify that the purported number of padding bytes is in
5512 *) Add OpenUNIX-8 support including shared libraries
5513 (Boyd Lynn Gerber <gerberb@zenez.com>).
5516 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5517 'wristwatch attack' using huge encoding parameters (cf.
5518 James H. Manger's CRYPTO 2001 paper). Note that the
5519 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5520 encoding parameters and hence was not vulnerable.
5523 *) BN_sqr() bug fix.
5524 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5526 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5527 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5528 followed by modular reduction.
5529 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5531 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5532 equivalent based on BN_pseudo_rand() instead of BN_rand().
5535 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5536 This function was broken, as the check for a new client hello message
5537 to handle SGC did not allow these large messages.
5538 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5541 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5544 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5545 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5548 *) Rework the configuration and shared library support for Tru64 Unix.
5549 The configuration part makes use of modern compiler features and
5550 still retains old compiler behavior for those that run older versions
5551 of the OS. The shared library support part includes a variant that
5552 uses the RPATH feature, and is available through the special
5553 configuration target "alpha-cc-rpath", which will never be selected
5555 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5557 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5558 with the same message size as in ssl3_get_certificate_request().
5559 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5560 messages might inadvertently be reject as too long.
5561 [Petr Lampa <lampa@fee.vutbr.cz>]
5563 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5566 *) Modified SSL library such that the verify_callback that has been set
5567 specificly for an SSL object with SSL_set_verify() is actually being
5568 used. Before the change, a verify_callback set with this function was
5569 ignored and the verify_callback() set in the SSL_CTX at the time of
5570 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5571 to allow the necessary settings.
5574 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5575 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5576 done automatically (in contradiction to the requirements of the C
5577 standard). This made problems when used from OpenSSH.
5580 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5581 dh->length and always used
5583 BN_rand_range(priv_key, dh->p).
5585 BN_rand_range() is not necessary for Diffie-Hellman, and this
5586 specific range makes Diffie-Hellman unnecessarily inefficient if
5587 dh->length (recommended exponent length) is much smaller than the
5588 length of dh->p. We could use BN_rand_range() if the order of
5589 the subgroup was stored in the DH structure, but we only have
5594 BN_rand(priv_key, l, ...)
5596 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5602 RSA_eay_public_encrypt
5603 RSA_eay_private_decrypt
5604 RSA_eay_private_encrypt (signing)
5605 RSA_eay_public_decrypt (signature verification)
5607 (default implementations for RSA_public_encrypt,
5608 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5609 always reject numbers >= n.
5612 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5613 to synchronize access to 'locking_thread'. This is necessary on
5614 systems where access to 'locking_thread' (an 'unsigned long'
5615 variable) is not atomic.
5618 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5619 *before* setting the 'crypto_lock_rand' flag. The previous code had
5620 a race condition if 0 is a valid thread ID.
5621 [Travis Vitek <vitek@roguewave.com>]
5623 *) Add support for shared libraries under Irix.
5624 [Albert Chin-A-Young <china@thewrittenword.com>]
5626 *) Add configuration option to build on Linux on both big-endian and
5628 [Ralf Baechle <ralf@uni-koblenz.de>]
5630 *) Add the possibility to create shared libraries on HP-UX.
5633 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5635 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5636 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5637 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5638 PRNG state recovery was possible based on the output of
5639 one PRNG request appropriately sized to gain knowledge on
5640 'md' followed by enough consecutive 1-byte PRNG requests
5641 to traverse all of 'state'.
5643 1. When updating 'md_local' (the current thread's copy of 'md')
5644 during PRNG output generation, hash all of the previous
5645 'md_local' value, not just the half used for PRNG output.
5647 2. Make the number of bytes from 'state' included into the hash
5648 independent from the number of PRNG bytes requested.
5650 The first measure alone would be sufficient to avoid
5651 Markku-Juhani's attack. (Actually it had never occurred
5652 to me that the half of 'md_local' used for chaining was the
5653 half from which PRNG output bytes were taken -- I had always
5654 assumed that the secret half would be used.) The second
5655 measure makes sure that additional data from 'state' is never
5656 mixed into 'md_local' in small portions; this heuristically
5657 further strengthens the PRNG.
5660 *) Fix crypto/bn/asm/mips3.s.
5663 *) When only the key is given to "enc", the IV is undefined. Print out
5664 an error message in this case.
5667 *) Handle special case when X509_NAME is empty in X509 printing routines.
5670 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5671 positive and less than q.
5674 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5675 used: it isn't thread safe and the add_lock_callback should handle
5677 [Paul Rose <Paul.Rose@bridge.com>]
5679 *) Verify that incoming data obeys the block size in
5680 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5684 [Ulf Möller, Bodo Möller]
5686 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5687 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5688 when fixing the server behaviour for backwards-compatible 'client
5689 hello' messages. (Note that the attack is impractical against
5690 SSL 3.0 and TLS 1.0 anyway because length and version checking
5691 means that the probability of guessing a valid ciphertext is
5692 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5695 Before 0.9.5, the countermeasure (hide the error by generating a
5696 random 'decryption result') did not work properly because
5697 ERR_clear_error() was missing, meaning that SSL_get_error() would
5698 detect the supposedly ignored error.
5700 Both problems are now fixed.
5703 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5704 (previously it was 1024).
5707 *) Fix for compatibility mode trust settings: ignore trust settings
5708 unless some valid trust or reject settings are present.
5711 *) Fix for blowfish EVP: its a variable length cipher.
5714 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5715 parameters in DSA public key structures and return an error in the
5716 DSA routines if parameters are absent.
5719 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5720 in the current directory if neither $RANDFILE nor $HOME was set.
5721 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5722 caused some confusion to Windows users who haven't defined $HOME.
5723 Thus RAND_file_name() is changed again: e_os.h can define a
5724 DEFAULT_HOME, which will be used if $HOME is not set.
5725 For Windows, we use "C:"; on other platforms, we still require
5726 environment variables.
5728 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5729 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5730 having multiple threads call RAND_poll() concurrently.
5733 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5734 combination of a flag and a thread ID variable.
5735 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5736 flag), *other* threads can enter ssleay_add_bytes without obeying
5737 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5738 that they do not hold after the first thread unsets add_do_not_lock).
5741 *) Change bctest again: '-x' expressions are not available in all
5745 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5747 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5748 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5750 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5751 the default extension for executables, if any. Also, make the perl
5752 scripts that use symlink() to test if it really exists and use "cp"
5753 if it doesn't. All this made OpenSSL compilable and installable in
5757 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5758 If SEQUENCE is length is indefinite just set c->slen to the total
5759 amount of data available.
5760 [Steve Henson, reported by shige@FreeBSD.org]
5761 [This change does not apply to 0.9.7.]
5763 *) Change bctest to avoid here-documents inside command substitution
5764 (workaround for FreeBSD /bin/sh bug).
5765 For compatibility with Ultrix, avoid shell functions (introduced
5766 in the bctest version that searches along $PATH).
5769 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5770 with des_encrypt() defined on some operating systems, like Solaris
5774 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5775 On the Importance of Eliminating Errors in Cryptographic
5776 Computations, J. Cryptology 14 (2001) 2, 101-119,
5777 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5780 *) MIPS assembler BIGNUM division bug fix.
5783 *) Disabled incorrect Alpha assembler code.
5786 *) Fix PKCS#7 decode routines so they correctly update the length
5787 after reading an EOC for the EXPLICIT tag.
5789 [This change does not apply to 0.9.7.]
5791 *) Fix bug in PKCS#12 key generation routines. This was triggered
5792 if a 3DES key was generated with a 0 initial byte. Include
5793 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5794 (but broken) behaviour.
5797 *) Enhance bctest to search for a working bc along $PATH and print
5799 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5801 *) Fix memory leaks in err.c: free err_data string if necessary;
5802 don't write to the wrong index in ERR_set_error_data.
5805 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5809 *) Replace rdtsc with _emit statements for VC++ version 5.
5810 [Jeremy Cooper <jeremy@baymoo.org>]
5812 *) Make it possible to reuse SSLv2 sessions.
5815 *) In copy_email() check for >= 0 as a return value for
5816 X509_NAME_get_index_by_NID() since 0 is a valid index.
5817 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5819 *) Avoid coredump with unsupported or invalid public keys by checking if
5820 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5821 PKCS7_verify() fails with non detached data.
5824 *) Don't use getenv in library functions when run as setuid/setgid.
5825 New function OPENSSL_issetugid().
5828 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5829 due to incorrect handling of multi-threading:
5831 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5833 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5835 3. Count how many times MemCheck_off() has been called so that
5836 nested use can be treated correctly. This also avoids
5837 inband-signalling in the previous code (which relied on the
5838 assumption that thread ID 0 is impossible).
5841 *) Add "-rand" option also to s_client and s_server.
5844 *) Fix CPU detection on Irix 6.x.
5845 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5846 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5848 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5851 [This change does not apply to 0.9.7.]
5853 *) Use the cached encoding of an X509_NAME structure rather than
5854 copying it. This is apparently the reason for the libsafe "errors"
5855 but the code is actually correct.
5858 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5859 Bleichenbacher's DSA attack.
5860 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5861 to be set and top=0 forces the highest bit to be set; top=-1 is new
5862 and leaves the highest bit random.
5863 [Ulf Moeller, Bodo Moeller]
5865 *) In the NCONF_...-based implementations for CONF_... queries
5866 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5867 a temporary CONF structure with the data component set to NULL
5868 (which gives segmentation faults in lh_retrieve).
5869 Instead, use NULL for the CONF pointer in CONF_get_string and
5870 CONF_get_number (which may use environment variables) and directly
5871 return NULL from CONF_get_section.
5874 *) Fix potential buffer overrun for EBCDIC.
5877 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5878 keyUsage if basicConstraints absent for a CA.
5881 *) Make SMIME_write_PKCS7() write mail header values with a format that
5882 is more generally accepted (no spaces before the semicolon), since
5883 some programs can't parse those values properly otherwise. Also make
5884 sure BIO's that break lines after each write do not create invalid
5888 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5889 macros previously used would not encode an empty SEQUENCE OF
5890 and break the signature.
5892 [This change does not apply to 0.9.7.]
5894 *) Zero the premaster secret after deriving the master secret in
5898 *) Add some EVP_add_digest_alias registrations (as found in
5899 OpenSSL_add_all_digests()) to SSL_library_init()
5900 aka OpenSSL_add_ssl_algorithms(). This provides improved
5901 compatibility with peers using X.509 certificates
5902 with unconventional AlgorithmIdentifier OIDs.
5905 *) Fix for Irix with NO_ASM.
5906 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5908 *) ./config script fixes.
5909 [Ulf Moeller, Richard Levitte]
5911 *) Fix 'openssl passwd -1'.
5914 *) Change PKCS12_key_gen_asc() so it can cope with non null
5915 terminated strings whose length is passed in the passlen
5916 parameter, for example from PEM callbacks. This was done
5917 by adding an extra length parameter to asc2uni().
5918 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5920 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5921 call failed, free the DSA structure.
5924 *) Fix to uni2asc() to cope with zero length Unicode strings.
5925 These are present in some PKCS#12 files.
5928 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5929 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5930 when writing a 32767 byte record.
5931 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5933 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5934 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5936 (RSA objects have a reference count access to which is protected
5937 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5938 so they are meant to be shared between threads.)
5939 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5940 "Reddie, Steven" <Steven.Reddie@ca.com>]
5942 *) Fix a deadlock in CRYPTO_mem_leaks().
5945 *) Use better test patterns in bntest.
5948 *) rand_win.c fix for Borland C.
5951 *) BN_rshift bugfix for n == 0.
5954 *) Add a 'bctest' script that checks for some known 'bc' bugs
5955 so that 'make test' does not abort just because 'bc' is broken.
5958 *) Store verify_result within SSL_SESSION also for client side to
5959 avoid potential security hole. (Re-used sessions on the client side
5960 always resulted in verify_result==X509_V_OK, not using the original
5961 result of the server certificate verification.)
5964 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5965 SSL3_RT_APPLICATION_DATA, return 0.
5966 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5970 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5971 releases, have been re-implemented by renaming the previous
5972 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5973 and ssl3_read_internal, respectively, and adding 'peek' parameters
5974 to them. The new ssl[23]_{read,peek} functions are calls to
5975 ssl[23]_read_internal with the 'peek' flag set appropriately.
5976 A 'peek' parameter has also been added to ssl3_read_bytes, which
5977 does the actual work for ssl3_read_internal.
5980 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5981 the method-specific "init()" handler. Also clean up ex_data after
5982 calling the method-specific "finish()" handler. Previously, this was
5983 happening the other way round.
5986 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5987 The previous value, 12, was not always sufficient for BN_mod_exp().
5990 *) Make sure that shared libraries get the internal name engine with
5991 the full version number and not just 0. This should mark the
5992 shared libraries as not backward compatible. Of course, this should
5993 be changed again when we can guarantee backward binary compatibility.
5996 *) Fix typo in get_cert_by_subject() in by_dir.c
5997 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5999 *) Rework the system to generate shared libraries:
6001 - Make note of the expected extension for the shared libraries and
6002 if there is a need for symbolic links from for example libcrypto.so.0
6003 to libcrypto.so.0.9.7. There is extended info in Configure for
6006 - Make as few rebuilds of the shared libraries as possible.
6008 - Still avoid linking the OpenSSL programs with the shared libraries.
6010 - When installing, install the shared libraries separately from the
6014 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6016 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6017 and not in SSL_clear because the latter is also used by the
6018 accept/connect functions; previously, the settings made by
6019 SSL_set_read_ahead would be lost during the handshake.
6020 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6022 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6023 Previously, it would create entries for disableed algorithms no
6027 *) Added several new manual pages for SSL_* function.
6030 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6032 *) In ssl23_get_client_hello, generate an error message when faced
6033 with an initial SSL 3.0/TLS record that is too small to contain the
6034 first two bytes of the ClientHello message, i.e. client_version.
6035 (Note that this is a pathologic case that probably has never happened
6036 in real life.) The previous approach was to use the version number
6037 from the record header as a substitute; but our protocol choice
6038 should not depend on that one because it is not authenticated
6039 by the Finished messages.
6042 *) More robust randomness gathering functions for Windows.
6043 [Jeffrey Altman <jaltman@columbia.edu>]
6045 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6046 not set then we don't setup the error code for issuer check errors
6047 to avoid possibly overwriting other errors which the callback does
6048 handle. If an application does set the flag then we assume it knows
6049 what it is doing and can handle the new informational codes
6053 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6054 a general "ANY" type, as such it should be able to decode anything
6055 including tagged types. However it didn't check the class so it would
6056 wrongly interpret tagged types in the same way as their universal
6057 counterpart and unknown types were just rejected. Changed so that the
6058 tagged and unknown types are handled in the same way as a SEQUENCE:
6059 that is the encoding is stored intact. There is also a new type
6060 "V_ASN1_OTHER" which is used when the class is not universal, in this
6061 case we have no idea what the actual type is so we just lump them all
6065 *) On VMS, stdout may very well lead to a file that is written to
6066 in a record-oriented fashion. That means that every write() will
6067 write a separate record, which will be read separately by the
6068 programs trying to read from it. This can be very confusing.
6070 The solution is to put a BIO filter in the way that will buffer
6071 text until a linefeed is reached, and then write everything a
6072 line at a time, so every record written will be an actual line,
6073 not chunks of lines and not (usually doesn't happen, but I've
6074 seen it once) several lines in one record. BIO_f_linebuffer() is
6077 Currently, it's a VMS-only method, because that's where it has
6078 been tested well enough.
6081 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6082 it can return incorrect results.
6083 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6084 but it was in 0.9.6-beta[12].)
6087 *) Disable the check for content being present when verifying detached
6088 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6089 include zero length content when signing messages.
6092 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6093 BIO_ctrl (for BIO pairs).
6096 *) Add DSO method for VMS.
6099 *) Bug fix: Montgomery multiplication could produce results with the
6103 *) Add RPM specification openssl.spec and modify it to build three
6104 packages. The default package contains applications, application
6105 documentation and run-time libraries. The devel package contains
6106 include files, static libraries and function documentation. The
6107 doc package contains the contents of the doc directory. The original
6108 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6111 *) Add a large number of documentation files for many SSL routines.
6112 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6114 *) Add a configuration entry for Sony News 4.
6115 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6117 *) Don't set the two most significant bits to one when generating a
6118 random number < q in the DSA library.
6121 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6122 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6123 the underlying transport is blocking) if a handshake took place.
6124 (The default behaviour is needed by applications such as s_client
6125 and s_server that use select() to determine when to use SSL_read;
6126 but for applications that know in advance when to expect data, it
6127 just makes things more complicated.)
6130 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6134 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6135 work better on such systems.
6136 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6138 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6139 Update PKCS12_parse() so it copies the friendlyName and the
6140 keyid to the certificates aux info.
6143 *) Fix bug in PKCS7_verify() which caused an infinite loop
6144 if there was more than one signature.
6145 [Sven Uszpelkat <su@celocom.de>]
6147 *) Major change in util/mkdef.pl to include extra information
6148 about each symbol, as well as presentig variables as well
6149 as functions. This change means that there's n more need
6150 to rebuild the .num files when some algorithms are excluded.
6153 *) Allow the verify time to be set by an application,
6154 rather than always using the current time.
6157 *) Phase 2 verify code reorganisation. The certificate
6158 verify code now looks up an issuer certificate by a
6159 number of criteria: subject name, authority key id
6160 and key usage. It also verifies self signed certificates
6161 by the same criteria. The main comparison function is
6162 X509_check_issued() which performs these checks.
6164 Lot of changes were necessary in order to support this
6165 without completely rewriting the lookup code.
6167 Authority and subject key identifier are now cached.
6169 The LHASH 'certs' is X509_STORE has now been replaced
6170 by a STACK_OF(X509_OBJECT). This is mainly because an
6171 LHASH can't store or retrieve multiple objects with
6172 the same hash value.
6174 As a result various functions (which were all internal
6175 use only) have changed to handle the new X509_STORE
6176 structure. This will break anything that messed round
6177 with X509_STORE internally.
6179 The functions X509_STORE_add_cert() now checks for an
6180 exact match, rather than just subject name.
6182 The X509_STORE API doesn't directly support the retrieval
6183 of multiple certificates matching a given criteria, however
6184 this can be worked round by performing a lookup first
6185 (which will fill the cache with candidate certificates)
6186 and then examining the cache for matches. This is probably
6187 the best we can do without throwing out X509_LOOKUP
6188 entirely (maybe later...).
6190 The X509_VERIFY_CTX structure has been enhanced considerably.
6192 All certificate lookup operations now go via a get_issuer()
6193 callback. Although this currently uses an X509_STORE it
6194 can be replaced by custom lookups. This is a simple way
6195 to bypass the X509_STORE hackery necessary to make this
6196 work and makes it possible to use more efficient techniques
6197 in future. A very simple version which uses a simple
6198 STACK for its trusted certificate store is also provided
6199 using X509_STORE_CTX_trusted_stack().
6201 The verify_cb() and verify() callbacks now have equivalents
6202 in the X509_STORE_CTX structure.
6204 X509_STORE_CTX also has a 'flags' field which can be used
6205 to customise the verify behaviour.
6208 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6209 excludes S/MIME capabilities.
6212 *) When a certificate request is read in keep a copy of the
6213 original encoding of the signed data and use it when outputing
6214 again. Signatures then use the original encoding rather than
6215 a decoded, encoded version which may cause problems if the
6216 request is improperly encoded.
6219 *) For consistency with other BIO_puts implementations, call
6220 buffer_write(b, ...) directly in buffer_puts instead of calling
6223 In BIO_puts, increment b->num_write as in BIO_write.
6224 [Peter.Sylvester@EdelWeb.fr]
6226 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6227 BN_zero, we may not return a BIGNUM with an array consisting of
6231 *) Avoid calling abort() from within the library when problems are
6232 detected, except if preprocessor symbols have been defined
6233 (such as REF_CHECK, BN_DEBUG etc.).
6236 *) New openssl application 'rsautl'. This utility can be
6237 used for low level RSA operations. DER public key
6238 BIO/fp routines also added.
6241 *) New Configure entry and patches for compiling on QNX 4.
6242 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6244 *) A demo state-machine implementation was sponsored by
6245 Nuron (http://www.nuron.com/) and is now available in
6246 demos/state_machine.
6249 *) New options added to the 'dgst' utility for signature
6250 generation and verification.
6253 *) Unrecognized PKCS#7 content types are now handled via a
6254 catch all ASN1_TYPE structure. This allows unsupported
6255 types to be stored as a "blob" and an application can
6256 encode and decode it manually.
6259 *) Fix various signed/unsigned issues to make a_strex.c
6261 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6263 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6264 length if passed a buffer. ASN1_INTEGER_to_BN failed
6265 if passed a NULL BN and its argument was negative.
6266 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6268 *) Modification to PKCS#7 encoding routines to output definite
6269 length encoding. Since currently the whole structures are in
6270 memory there's not real point in using indefinite length
6271 constructed encoding. However if OpenSSL is compiled with
6272 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6275 *) Added BIO_vprintf() and BIO_vsnprintf().
6278 *) Added more prefixes to parse for in the the strings written
6279 through a logging bio, to cover all the levels that are available
6280 through syslog. The prefixes are now:
6282 PANIC, EMERG, EMR => LOG_EMERG
6283 ALERT, ALR => LOG_ALERT
6284 CRIT, CRI => LOG_CRIT
6285 ERROR, ERR => LOG_ERR
6286 WARNING, WARN, WAR => LOG_WARNING
6287 NOTICE, NOTE, NOT => LOG_NOTICE
6288 INFO, INF => LOG_INFO
6289 DEBUG, DBG => LOG_DEBUG
6291 and as before, if none of those prefixes are present at the
6292 beginning of the string, LOG_ERR is chosen.
6294 On Win32, the LOG_* levels are mapped according to this:
6296 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6297 LOG_WARNING => EVENTLOG_WARNING_TYPE
6298 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6302 *) Made it possible to reconfigure with just the configuration
6303 argument "reconf" or "reconfigure". The command line arguments
6304 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6305 and are retrieved from there when reconfiguring.
6309 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6311 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6314 *) The obj_dat.pl script was messing up the sorting of object
6315 names. The reason was that it compared the quoted version
6316 of strings as a result "OCSP" > "OCSP Signing" because
6317 " > SPACE. Changed script to store unquoted versions of
6318 names and add quotes on output. It was also omitting some
6319 names from the lookup table if they were given a default
6320 value (that is if SN is missing it is given the same
6321 value as LN and vice versa), these are now added on the
6322 grounds that if an object has a name we should be able to
6323 look it up. Finally added warning output when duplicate
6324 short or long names are found.
6327 *) Changes needed for Tandem NSK.
6328 [Scott Uroff <scott@xypro.com>]
6330 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6331 RSA_padding_check_SSLv23(), special padding was never detected
6332 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6333 version rollback attacks was not effective.
6335 In s23_clnt.c, don't use special rollback-attack detection padding
6336 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6337 client; similarly, in s23_srvr.c, don't do the rollback check if
6338 SSL 2.0 is the only protocol enabled in the server.
6341 *) Make it possible to get hexdumps of unprintable data with 'openssl
6342 asn1parse'. By implication, the functions ASN1_parse_dump() and
6343 BIO_dump_indent() are added.
6346 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6347 these print out strings and name structures based on various
6348 flags including RFC2253 support and proper handling of
6349 multibyte characters. Added options to the 'x509' utility
6350 to allow the various flags to be set.
6353 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6354 Also change the functions X509_cmp_current_time() and
6355 X509_gmtime_adj() work with an ASN1_TIME structure,
6356 this will enable certificates using GeneralizedTime in validity
6357 dates to be checked.
6360 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6361 negative public key encodings) on by default,
6362 NO_NEG_PUBKEY_BUG can be set to disable it.
6365 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6366 content octets. An i2c_ASN1_OBJECT is unnecessary because
6367 the encoding can be trivially obtained from the structure.
6370 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6371 not read locks (CRYPTO_r_[un]lock).
6374 *) A first attempt at creating official support for shared
6375 libraries through configuration. I've kept it so the
6376 default is static libraries only, and the OpenSSL programs
6377 are always statically linked for now, but there are
6378 preparations for dynamic linking in place.
6379 This has been tested on Linux and Tru64.
6382 *) Randomness polling function for Win9x, as described in:
6383 Peter Gutmann, Software Generation of Practically Strong
6387 *) Fix so PRNG is seeded in req if using an already existing
6391 *) New options to smime application. -inform and -outform
6392 allow alternative formats for the S/MIME message including
6393 PEM and DER. The -content option allows the content to be
6394 specified separately. This should allow things like Netscape
6395 form signing output easier to verify.
6398 *) Fix the ASN1 encoding of tags using the 'long form'.
6401 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6402 STRING types. These convert content octets to and from the
6403 underlying type. The actual tag and length octets are
6404 already assumed to have been read in and checked. These
6405 are needed because all other string types have virtually
6406 identical handling apart from the tag. By having versions
6407 of the ASN1 functions that just operate on content octets
6408 IMPLICIT tagging can be handled properly. It also allows
6409 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6410 and ASN1_INTEGER are identical apart from the tag.
6413 *) Change the handling of OID objects as follows:
6415 - New object identifiers are inserted in objects.txt, following
6416 the syntax given in objects.README.
6417 - objects.pl is used to process obj_mac.num and create a new
6419 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6422 This is currently kind of a hack, and the perl code in objects.pl
6423 isn't very elegant, but it works as I intended. The simplest way
6424 to check that it worked correctly is to look in obj_dat.h and
6425 check the array nid_objs and make sure the objects haven't moved
6426 around (this is important!). Additions are OK, as well as
6427 consistent name changes.
6430 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6433 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6434 The given file adds to whatever has already been seeded into the
6435 random pool through the RANDFILE configuration file option or
6436 environment variable, or the default random state file.
6439 *) mkstack.pl now sorts each macro group into lexical order.
6440 Previously the output order depended on the order the files
6441 appeared in the directory, resulting in needless rewriting
6445 *) Patches to make OpenSSL compile under Win32 again. Mostly
6446 work arounds for the VC++ problem that it treats func() as
6447 func(void). Also stripped out the parts of mkdef.pl that
6448 added extra typesafe functions: these no longer exist.
6451 *) Reorganisation of the stack code. The macros are now all
6452 collected in safestack.h . Each macro is defined in terms of
6453 a "stack macro" of the form SKM_<name>(type, a, b). The
6454 DEBUG_SAFESTACK is now handled in terms of function casts,
6455 this has the advantage of retaining type safety without the
6456 use of additional functions. If DEBUG_SAFESTACK is not defined
6457 then the non typesafe macros are used instead. Also modified the
6458 mkstack.pl script to handle the new form. Needs testing to see
6459 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6460 the default if no major problems. Similar behaviour for ASN1_SET_OF
6461 and PKCS12_STACK_OF.
6464 *) When some versions of IIS use the 'NET' form of private key the
6465 key derivation algorithm is different. Normally MD5(password) is
6466 used as a 128 bit RC4 key. In the modified case
6467 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6468 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6469 as the old Netscape_RSA functions except they have an additional
6470 'sgckey' parameter which uses the modified algorithm. Also added
6471 an -sgckey command line option to the rsa utility. Thanks to
6472 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6473 algorithm to openssl-dev.
6476 *) The evp_local.h macros were using 'c.##kname' which resulted in
6477 invalid expansion on some systems (SCO 5.0.5 for example).
6478 Corrected to 'c.kname'.
6479 [Phillip Porch <root@theporch.com>]
6481 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6482 a STACK of email addresses from a certificate or request, these look
6483 in the subject name and the subject alternative name extensions and
6484 omit any duplicate addresses.
6487 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6488 This makes DSA verification about 2 % faster.
6491 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6492 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6493 plus overhead for 1024 bit moduli).
6494 This makes exponentiations about 0.5 % faster for 1024 bit
6495 exponents (as measured by "openssl speed rsa2048").
6498 *) Rename memory handling macros to avoid conflicts with other
6500 Malloc => OPENSSL_malloc
6501 Malloc_locked => OPENSSL_malloc_locked
6502 Realloc => OPENSSL_realloc
6503 Free => OPENSSL_free
6506 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6507 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6510 *) CygWin32 support.
6511 [John Jarvie <jjarvie@newsguy.com>]
6513 *) The type-safe stack code has been rejigged. It is now only compiled
6514 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6515 by default all type-specific stack functions are "#define"d back to
6516 standard stack functions. This results in more streamlined output
6517 but retains the type-safety checking possibilities of the original
6521 *) The STACK code has been cleaned up, and certain type declarations
6522 that didn't make a lot of sense have been brought in line. This has
6523 also involved a cleanup of sorts in safestack.h to more correctly
6524 map type-safe stack functions onto their plain stack counterparts.
6525 This work has also resulted in a variety of "const"ifications of
6526 lots of the code, especially "_cmp" operations which should normally
6527 be prototyped with "const" parameters anyway.
6530 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6531 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6532 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6533 where all of 'md' is used each time the PRNG is used, but 'state'
6534 is used only indexed by a cyclic counter. As entropy may not be
6535 well distributed from the beginning, 'md' is important as a
6536 chaining variable. However, the output function chains only half
6537 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6538 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6539 in all of 'state' being rewritten, with the new values depending
6540 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6543 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6544 the handshake is continued after ssl_verify_cert_chain();
6545 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6546 can lead to 'unexplainable' connection aborts later.
6547 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6549 *) Major EVP API cipher revision.
6550 Add hooks for extra EVP features. This allows various cipher
6551 parameters to be set in the EVP interface. Support added for variable
6552 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6553 setting of RC2 and RC5 parameters.
6555 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6558 Remove lots of duplicated code from the EVP library. For example *every*
6559 cipher init() function handles the 'iv' in the same way according to the
6560 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6561 for CFB and OFB modes they zero ctx->num.
6563 New functionality allows removal of S/MIME code RC2 hack.
6565 Most of the routines have the same form and so can be declared in terms
6568 By shifting this to the top level EVP_CipherInit() it can be removed from
6569 all individual ciphers. If the cipher wants to handle IVs or keys
6570 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6573 Change lots of functions like EVP_EncryptUpdate() to now return a
6574 value: although software versions of the algorithms cannot fail
6575 any installed hardware versions can.
6578 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6579 this option is set, tolerate broken clients that send the negotiated
6580 protocol version number instead of the requested protocol version
6584 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6585 i.e. non-zero for export ciphersuites, zero otherwise.
6586 Previous versions had this flag inverted, inconsistent with
6587 rsa_tmp_cb (..._TMP_RSA_CB).
6588 [Bodo Moeller; problem reported by Amit Chopra]
6590 *) Add missing DSA library text string. Work around for some IIS
6591 key files with invalid SEQUENCE encoding.
6594 *) Add a document (doc/standards.txt) that list all kinds of standards
6595 and so on that are implemented in OpenSSL.
6598 *) Enhance c_rehash script. Old version would mishandle certificates
6599 with the same subject name hash and wouldn't handle CRLs at all.
6600 Added -fingerprint option to crl utility, to support new c_rehash
6604 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6607 *) Fix for SSL server purpose checking. Server checking was
6608 rejecting certificates which had extended key usage present
6609 but no ssl client purpose.
6610 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6612 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6613 is a little unclear about how a blank password is handled.
6614 Since the password in encoded as a BMPString with terminating
6615 double NULL a zero length password would end up as just the
6616 double NULL. However no password at all is different and is
6617 handled differently in the PKCS#12 key generation code. NS
6618 treats a blank password as zero length. MSIE treats it as no
6619 password on export: but it will try both on import. We now do
6620 the same: PKCS12_parse() tries zero length and no password if
6621 the password is set to "" or NULL (NULL is now a valid password:
6622 it wasn't before) as does the pkcs12 application.
6625 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6626 perror when PEM_read_bio_X509_REQ fails, the error message must
6627 be obtained from the error queue.
6630 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6631 it in ERR_remove_state if appropriate, and change ERR_get_state
6632 accordingly to avoid race conditions (this is necessary because
6633 thread_hash is no longer constant once set).
6636 *) Bugfix for linux-elf makefile.one.
6639 *) RSA_get_default_method() will now cause a default
6640 RSA_METHOD to be chosen if one doesn't exist already.
6641 Previously this was only set during a call to RSA_new()
6642 or RSA_new_method(NULL) meaning it was possible for
6643 RSA_get_default_method() to return NULL.
6646 *) Added native name translation to the existing DSO code
6647 that will convert (if the flag to do so is set) filenames
6648 that are sufficiently small and have no path information
6649 into a canonical native form. Eg. "blah" converted to
6650 "libblah.so" or "blah.dll" etc.
6653 *) New function ERR_error_string_n(e, buf, len) which is like
6654 ERR_error_string(e, buf), but writes at most 'len' bytes
6655 including the 0 terminator. For ERR_error_string_n, 'buf'
6657 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6659 *) CONF library reworked to become more general. A new CONF
6660 configuration file reader "class" is implemented as well as a
6661 new functions (NCONF_*, for "New CONF") to handle it. The now
6662 old CONF_* functions are still there, but are reimplemented to
6663 work in terms of the new functions. Also, a set of functions
6664 to handle the internal storage of the configuration data is
6665 provided to make it easier to write new configuration file
6666 reader "classes" (I can definitely see something reading a
6667 configuration file in XML format, for example), called _CONF_*,
6668 or "the configuration storage API"...
6670 The new configuration file reading functions are:
6672 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6673 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6675 NCONF_default, NCONF_WIN32
6677 NCONF_dump_fp, NCONF_dump_bio
6679 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6680 NCONF_new creates a new CONF object. This works in the same way
6681 as other interfaces in OpenSSL, like the BIO interface.
6682 NCONF_dump_* dump the internal storage of the configuration file,
6683 which is useful for debugging. All other functions take the same
6684 arguments as the old CONF_* functions wth the exception of the
6685 first that must be a `CONF *' instead of a `LHASH *'.
6687 To make it easer to use the new classes with the old CONF_* functions,
6688 the function CONF_set_default_method is provided.
6691 *) Add '-tls1' option to 'openssl ciphers', which was already
6692 mentioned in the documentation but had not been implemented.
6693 (This option is not yet really useful because even the additional
6694 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6697 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6698 OpenSSL-based applications) load shared libraries and bind to
6699 them in a portable way.
6700 [Geoff Thorpe, with contributions from Richard Levitte]
6702 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6704 *) Make sure _lrotl and _lrotr are only used with MSVC.
6706 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6707 (the default implementation of RAND_status).
6709 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6710 to '-clrext' (= clear extensions), as intended and documented.
6711 [Bodo Moeller; inconsistency pointed out by Michael Attili
6714 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6715 was larger than the MD block size.
6716 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6718 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6719 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6720 using the passed key: if the passed key was a private key the result
6721 of X509_print(), for example, would be to print out all the private key
6725 *) des_quad_cksum() byte order bug fix.
6726 [Ulf Möller, using the problem description in krb4-0.9.7, where
6727 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6729 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6731 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6733 *) For easily testing in shell scripts whether some command
6734 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6735 returns with exit code 0 iff no command of the given name is available.
6736 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6737 the output goes to stdout and nothing is printed to stderr.
6738 Additional arguments are always ignored.
6740 Since for each cipher there is a command of the same name,
6741 the 'no-cipher' compilation switches can be tested this way.
6743 ('openssl no-XXX' is not able to detect pseudo-commands such
6744 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6747 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6750 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6751 is set; it will be thrown away anyway because each handshake creates
6753 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6754 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6755 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6756 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6759 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6760 'Q' and 'R' lose their special meanings (quit/renegotiate).
6761 This is part of what -quiet does; unlike -quiet, -ign_eof
6762 does not suppress any output.
6765 *) Add compatibility options to the purpose and trust code. The
6766 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6767 accepts a certificate or CA, this was the previous behaviour,
6768 with all the associated security issues.
6770 X509_TRUST_COMPAT is the old trust behaviour: only and
6771 automatically trust self signed roots in certificate store. A
6772 new trust setting X509_TRUST_DEFAULT is used to specify that
6773 a purpose has no associated trust setting and it should instead
6774 use the value in the default purpose.
6777 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6778 and fix a memory leak.
6781 *) In util/mkerr.pl (which implements 'make errors'), preserve
6782 reason strings from the previous version of the .c file, as
6783 the default to have only downcase letters (and digits) in
6784 automatically generated reasons codes is not always appropriate.
6787 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6788 using strerror. Previously, ERR_reason_error_string() returned
6789 library names as reason strings for SYSerr; but SYSerr is a special
6790 case where small numbers are errno values, not library numbers.
6793 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6794 converts DSA parameters into DH parameters. (When creating parameters,
6795 DSA_generate_parameters is used.)
6798 *) Include 'length' (recommended exponent length) in C code generated
6799 by 'openssl dhparam -C'.
6802 *) The second argument to set_label in perlasm was already being used
6803 so couldn't be used as a "file scope" flag. Moved to third argument
6807 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6808 instead of RAND_bytes for encryption IVs and salts.
6811 *) Include RAND_status() into RAND_METHOD instead of implementing
6812 it only for md_rand.c Otherwise replacing the PRNG by calling
6813 RAND_set_rand_method would be impossible.
6816 *) Don't let DSA_generate_key() enter an infinite loop if the random
6817 number generation fails.
6820 *) New 'rand' application for creating pseudo-random output.
6823 *) Added configuration support for Linux/IA64
6824 [Rolf Haberrecker <rolf@suse.de>]
6826 *) Assembler module support for Mingw32.
6829 *) Shared library support for HPUX (in shlib/).
6830 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6832 *) Shared library support for Solaris gcc.
6833 [Lutz Behnke <behnke@trustcenter.de>]
6835 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6837 *) PKCS7_encrypt() was adding text MIME headers twice because they
6838 were added manually and by SMIME_crlf_copy().
6841 *) In bntest.c don't call BN_rand with zero bits argument.
6842 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6844 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6845 case was implemented. This caused BN_div_recp() to fail occasionally.
6848 *) Add an optional second argument to the set_label() in the perl
6849 assembly language builder. If this argument exists and is set
6850 to 1 it signals that the assembler should use a symbol whose
6851 scope is the entire file, not just the current function. This
6852 is needed with MASM which uses the format label:: for this scope.
6853 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6855 *) Change the ASN1 types so they are typedefs by default. Before
6856 almost all types were #define'd to ASN1_STRING which was causing
6857 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6861 *) Change names of new functions to the new get1/get0 naming
6862 convention: After 'get1', the caller owns a reference count
6863 and has to call ..._free; 'get0' returns a pointer to some
6864 data structure without incrementing reference counters.
6865 (Some of the existing 'get' functions increment a reference
6866 counter, some don't.)
6867 Similarly, 'set1' and 'add1' functions increase reference
6868 counters or duplicate objects.
6871 *) Allow for the possibility of temp RSA key generation failure:
6872 the code used to assume it always worked and crashed on failure.
6875 *) Fix potential buffer overrun problem in BIO_printf().
6876 [Ulf Möller, using public domain code by Patrick Powell; problem
6877 pointed out by David Sacerdote <das33@cornell.edu>]
6879 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6880 RAND_egd() and RAND_status(). In the command line application,
6881 the EGD socket can be specified like a seed file using RANDFILE
6885 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6886 Some CAs (e.g. Verisign) distribute certificates in this form.
6889 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6890 list to exclude them. This means that no special compilation option
6891 is needed to use anonymous DH: it just needs to be included in the
6895 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6896 EVP_MD_type. The old functionality is available in a new macro called
6897 EVP_MD_md(). Change code that uses it and update docs.
6900 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6901 where the 'void *' argument is replaced by a function pointer argument.
6902 Previously 'void *' was abused to point to functions, which works on
6903 many platforms, but is not correct. As these functions are usually
6904 called by macros defined in OpenSSL header files, most source code
6905 should work without changes.
6908 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6909 sections with information on -D... compiler switches used for
6910 compiling the library so that applications can see them. To enable
6911 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6912 must be defined. E.g.,
6913 #define OPENSSL_ALGORITHM_DEFINES
6914 #include <openssl/opensslconf.h>
6915 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6916 [Richard Levitte, Ulf and Bodo Möller]
6918 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6922 *) Change the 'other' type in certificate aux info to a STACK_OF
6923 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6924 the required ASN1 format: arbitrary types determined by an OID.
6927 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6928 argument to 'req'. This is not because the function is newer or
6929 better than others it just uses the work 'NEW' in the certificate
6930 request header lines. Some software needs this.
6933 *) Reorganise password command line arguments: now passwords can be
6934 obtained from various sources. Delete the PEM_cb function and make
6935 it the default behaviour: i.e. if the callback is NULL and the
6936 usrdata argument is not NULL interpret it as a null terminated pass
6937 phrase. If usrdata and the callback are NULL then the pass phrase
6938 is prompted for as usual.
6941 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6942 the support is automatically enabled. The resulting binaries will
6943 autodetect the card and use it if present.
6944 [Ben Laurie and Compaq Inc.]
6946 *) Work around for Netscape hang bug. This sends certificate request
6947 and server done in one record. Since this is perfectly legal in the
6948 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6949 the bugs/SSLv3 entry for more info.
6952 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6955 *) Add -rand argument to smime and pkcs12 applications and read/write
6959 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6962 *) Add command line password options to the remaining applications.
6965 *) Bug fix for BN_div_recp() for numerators with an even number of
6969 *) More tests in bntest.c, and changed test_bn output.
6972 *) ./config recognizes MacOS X now.
6975 *) Bug fix for BN_div() when the first words of num and divsor are
6976 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6979 *) Add support for various broken PKCS#8 formats, and command line
6980 options to produce them.
6983 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6984 get temporary BIGNUMs from a BN_CTX.
6987 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6991 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6992 include a #define from the old name to the new. The original intent
6993 was that statically linked binaries could for example just call
6994 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6995 link with digests. This never worked becayse SSLeay_add_all_digests()
6996 and SSLeay_add_all_ciphers() were in the same source file so calling
6997 one would link with the other. They are now in separate source files.
7000 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7003 *) Use a less unusual form of the Miller-Rabin primality test (it used
7004 a binary algorithm for exponentiation integrated into the Miller-Rabin
7005 loop, our standard modexp algorithms are faster).
7008 *) Support for the EBCDIC character set completed.
7009 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7011 *) Source code cleanups: use const where appropriate, eliminate casts,
7012 use void * instead of char * in lhash.
7015 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7016 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7017 this the server could overwrite ephemeral keys that the client
7021 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7022 using 50 iterations of the Rabin-Miller test.
7024 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7025 iterations of the Rabin-Miller test as required by the appendix
7026 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7027 As BN_is_prime_fasttest includes trial division, DSA parameter
7028 generation becomes much faster.
7030 This implies a change for the callback functions in DSA_is_prime
7031 and DSA_generate_parameters: The callback function is called once
7032 for each positive witness in the Rabin-Miller test, not just
7033 occasionally in the inner loop; and the parameters to the
7034 callback function now provide an iteration count for the outer
7035 loop rather than for the current invocation of the inner loop.
7036 DSA_generate_parameters additionally can call the callback
7037 function with an 'iteration count' of -1, meaning that a
7038 candidate has passed the trial division test (when q is generated
7039 from an application-provided seed, trial division is skipped).
7042 *) New function BN_is_prime_fasttest that optionally does trial
7043 division before starting the Rabin-Miller test and has
7044 an additional BN_CTX * argument (whereas BN_is_prime always
7045 has to allocate at least one BN_CTX).
7046 'callback(1, -1, cb_arg)' is called when a number has passed the
7047 trial division stage.
7050 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7054 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7057 *) New function BN_pseudo_rand().
7060 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7061 bignum version of BN_from_montgomery() with the working code from
7062 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7066 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7067 made it impossible to use the same SSL_SESSION data structure in
7068 SSL2 clients in multiple threads.
7071 *) The return value of RAND_load_file() no longer counts bytes obtained
7072 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7073 to seed the PRNG (previously an explicit byte count was required).
7074 [Ulf Möller, Bodo Möller]
7076 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7077 used (char *) instead of (void *) and had casts all over the place.
7080 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7083 *) Retain source code compatibility for BN_prime_checks macro:
7084 BN_is_prime(..., BN_prime_checks, ...) now uses
7085 BN_prime_checks_for_size to determine the appropriate number of
7086 Rabin-Miller iterations.
7089 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7090 DH_CHECK_P_NOT_SAFE_PRIME.
7091 (Check if this is true? OpenPGP calls them "strong".)
7094 *) Merge the functionality of "dh" and "gendh" programs into a new program
7095 "dhparam". The old programs are retained for now but will handle DH keys
7096 (instead of parameters) in future.
7099 *) Make the ciphers, s_server and s_client programs check the return values
7100 when a new cipher list is set.
7103 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7104 ciphers. Before when the 56bit ciphers were enabled the sorting was
7107 The syntax for the cipher sorting has been extended to support sorting by
7108 cipher-strength (using the strength_bits hard coded in the tables).
7109 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7111 Fix a bug in the cipher-command parser: when supplying a cipher command
7112 string with an "undefined" symbol (neither command nor alphanumeric
7113 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7114 an error is flagged.
7116 Due to the strength-sorting extension, the code of the
7117 ssl_create_cipher_list() function was completely rearranged. I hope that
7118 the readability was also increased :-)
7119 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7121 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7122 for the first serial number and places 2 in the serial number file. This
7123 avoids problems when the root CA is created with serial number zero and
7124 the first user certificate has the same issuer name and serial number
7128 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7129 the new code. Add documentation for this stuff.
7132 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7133 X509_*() to X509at_*() on the grounds that they don't handle X509
7134 structures and behave in an analagous way to the X509v3 functions:
7135 they shouldn't be called directly but wrapper functions should be used
7138 So we also now have some wrapper functions that call the X509at functions
7139 when passed certificate requests. (TO DO: similar things can be done with
7140 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7141 things. Some of these need some d2i or i2d and print functionality
7142 because they handle more complex structures.)
7145 *) Add missing #ifndefs that caused missing symbols when building libssl
7146 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7147 NO_RSA in ssl/s2*.c.
7148 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7150 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7151 has a return value which indicates the quality of the random data
7152 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7153 error queue. New function RAND_pseudo_bytes() generates output that is
7154 guaranteed to be unique but not unpredictable. RAND_add is like
7155 RAND_seed, but takes an extra argument for an entropy estimate
7156 (RAND_seed always assumes full entropy).
7159 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7160 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7161 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7162 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7163 false-positive rate of at most 2^-80 for random input.
7166 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7169 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7170 in the 0.9.5 release), this returns the chain
7171 from an X509_CTX structure with a dup of the stack and all
7172 the X509 reference counts upped: so the stack will exist
7173 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7176 Also make SSL_SESSION_print() print out the verify return
7180 *) Add manpage for the pkcs12 command. Also change the default
7181 behaviour so MAC iteration counts are used unless the new
7182 -nomaciter option is used. This improves file security and
7183 only older versions of MSIE (4.0 for example) need it.
7186 *) Honor the no-xxx Configure options when creating .DEF files.
7189 *) Add PKCS#10 attributes to field table: challengePassword,
7190 unstructuredName and unstructuredAddress. These are taken from
7191 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7192 international characters are used.
7194 More changes to X509_ATTRIBUTE code: allow the setting of types
7195 based on strings. Remove the 'loc' parameter when adding
7196 attributes because these will be a SET OF encoding which is sorted
7200 *) Initial changes to the 'req' utility to allow request generation
7201 automation. This will allow an application to just generate a template
7202 file containing all the field values and have req construct the
7205 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7206 used all over the place including certificate requests and PKCS#7
7207 structures. They are currently handled manually where necessary with
7208 some primitive wrappers for PKCS#7. The new functions behave in a
7209 manner analogous to the X509 extension functions: they allow
7210 attributes to be looked up by NID and added.
7212 Later something similar to the X509V3 code would be desirable to
7213 automatically handle the encoding, decoding and printing of the
7214 more complex types. The string types like challengePassword can
7215 be handled by the string table functions.
7217 Also modified the multi byte string table handling. Now there is
7218 a 'global mask' which masks out certain types. The table itself
7219 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7220 is useful when for example there is only one permissible type
7221 (as in countryName) and using the mask might result in no valid
7225 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7226 SSL_get_peer_finished to allow applications to obtain the latest
7227 Finished messages sent to the peer or expected from the peer,
7228 respectively. (SSL_get_peer_finished is usually the Finished message
7229 actually received from the peer, otherwise the protocol will be aborted.)
7231 As the Finished message are message digests of the complete handshake
7232 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7233 be used for external authentication procedures when the authentication
7234 provided by SSL/TLS is not desired or is not enough.
7237 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7238 the host supports BWX extension and if Compaq C is present on the
7239 $PATH. Just exploiting of the BWX extension results in 20-30%
7240 performance kick for some algorithms, e.g. DES and RC4 to mention
7241 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7245 *) Add support for MS "fast SGC". This is arguably a violation of the
7246 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7247 weak crypto and after checking the certificate is SGC a second one
7248 with strong crypto. MS SGC stops the first handshake after receiving
7249 the server certificate message and sends a second client hello. Since
7250 a server will typically do all the time consuming operations before
7251 expecting any further messages from the client (server key exchange
7252 is the most expensive) there is little difference between the two.
7254 To get OpenSSL to support MS SGC we have to permit a second client
7255 hello message after we have sent server done. In addition we have to
7256 reset the MAC if we do get this second client hello.
7259 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7260 if a DER encoded private key is RSA or DSA traditional format. Changed
7261 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7262 format DER encoded private key. Newer code should use PKCS#8 format which
7263 has the key type encoded in the ASN1 structure. Added DER private key
7264 support to pkcs8 application.
7267 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7268 ciphersuites has been selected (as required by the SSL 3/TLS 1
7269 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7270 is set, we interpret this as a request to violate the specification
7271 (the worst that can happen is a handshake failure, and 'correct'
7272 behaviour would result in a handshake failure anyway).
7275 *) In SSL_CTX_add_session, take into account that there might be multiple
7276 SSL_SESSION structures with the same session ID (e.g. when two threads
7277 concurrently obtain them from an external cache).
7278 The internal cache can handle only one SSL_SESSION with a given ID,
7279 so if there's a conflict, we now throw out the old one to achieve
7283 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7284 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7285 some routines that use cipher OIDs: some ciphers do not have OIDs
7286 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7290 *) Simplify the trust setting structure and code. Now we just have
7291 two sequences of OIDs for trusted and rejected settings. These will
7292 typically have values the same as the extended key usage extension
7293 and any application specific purposes.
7295 The trust checking code now has a default behaviour: it will just
7296 check for an object with the same NID as the passed id. Functions can
7297 be provided to override either the default behaviour or the behaviour
7298 for a given id. SSL client, server and email already have functions
7299 in place for compatibility: they check the NID and also return "trusted"
7300 if the certificate is self signed.
7303 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7304 traditional format into an EVP_PKEY structure.
7307 *) Add a password callback function PEM_cb() which either prompts for
7308 a password if usr_data is NULL or otherwise assumes it is a null
7309 terminated password. Allow passwords to be passed on command line
7310 environment or config files in a few more utilities.
7313 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7314 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7315 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7316 Update documentation.
7319 *) Support for ASN1 "NULL" type. This could be handled before by using
7320 ASN1_TYPE but there wasn't any function that would try to read a NULL
7321 and produce an error if it couldn't. For compatibility we also have
7322 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7323 don't allocate anything because they don't need to.
7326 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7328 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7330 *) Rebuild of the memory allocation routines used by OpenSSL code and
7331 possibly others as well. The purpose is to make an interface that
7332 provide hooks so anyone can build a separate set of allocation and
7333 deallocation routines to be used by OpenSSL, for example memory
7334 pool implementations, or something else, which was previously hard
7335 since Malloc(), Realloc() and Free() were defined as macros having
7336 the values malloc, realloc and free, respectively (except for Win32
7337 compilations). The same is provided for memory debugging code.
7338 OpenSSL already comes with functionality to find memory leaks, but
7339 this gives people a chance to debug other memory problems.
7341 With these changes, a new set of functions and macros have appeared:
7343 CRYPTO_set_mem_debug_functions() [F]
7344 CRYPTO_get_mem_debug_functions() [F]
7345 CRYPTO_dbg_set_options() [F]
7346 CRYPTO_dbg_get_options() [F]
7347 CRYPTO_malloc_debug_init() [M]
7349 The memory debug functions are NULL by default, unless the library
7350 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7351 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7352 gives the standard debugging functions that come with OpenSSL) or
7353 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7354 provided by the library user) must be used. When the standard
7355 debugging functions are used, CRYPTO_dbg_set_options can be used to
7356 request additional information:
7357 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7358 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7360 Also, things like CRYPTO_set_mem_functions will always give the
7361 expected result (the new set of functions is used for allocation
7362 and deallocation) at all times, regardless of platform and compiler
7365 To finish it up, some functions that were never use in any other
7366 way than through macros have a new API and new semantic:
7369 CRYPTO_dbg_realloc()
7372 All macros of value have retained their old syntax.
7373 [Richard Levitte and Bodo Moeller]
7375 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7376 ordering of SMIMECapabilities wasn't in "strength order" and there
7377 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7381 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7382 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7383 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7385 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7386 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7387 functionality to handle multipart/signed properly) and a utility
7388 called 'smime' to call all this stuff. This is based on code I
7389 originally wrote for Celo who have kindly allowed it to be
7390 included in OpenSSL.
7393 *) Add variants des_set_key_checked and des_set_key_unchecked of
7394 des_set_key (aka des_key_sched). Global variable des_check_key
7395 decides which of these is called by des_set_key; this way
7396 des_check_key behaves as it always did, but applications and
7397 the library itself, which was buggy for des_check_key == 1,
7398 have a cleaner way to pick the version they need.
7401 *) New function PKCS12_newpass() which changes the password of a
7405 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7406 dynamic mix. In both cases the ids can be used as an index into the
7407 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7408 functions so they accept a list of the field values and the
7409 application doesn't need to directly manipulate the X509_TRUST
7413 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7417 *) Modify the way the V3 extension code looks up extensions. This now
7418 works in a similar way to the object code: we have some "standard"
7419 extensions in a static table which is searched with OBJ_bsearch()
7420 and the application can add dynamic ones if needed. The file
7421 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7422 updated whenever a new extension is added to the core code and kept
7423 in ext_nid order. There is a simple program 'tabtest.c' which checks
7424 this. New extensions are not added too often so this file can readily
7425 be maintained manually.
7427 There are two big advantages in doing things this way. The extensions
7428 can be looked up immediately and no longer need to be "added" using
7429 X509V3_add_standard_extensions(): this function now does nothing.
7430 [Side note: I get *lots* of email saying the extension code doesn't
7431 work because people forget to call this function]
7432 Also no dynamic allocation is done unless new extensions are added:
7433 so if we don't add custom extensions there is no need to call
7434 X509V3_EXT_cleanup().
7437 *) Modify enc utility's salting as follows: make salting the default. Add a
7438 magic header, so unsalted files fail gracefully instead of just decrypting
7439 to garbage. This is because not salting is a big security hole, so people
7440 should be discouraged from doing it.
7443 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7444 digest to be passed on the command line but it only used this
7445 parameter when signing a certificate. Modified so all relevant
7446 operations are affected by the digest parameter including the
7447 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7448 DSA key was used because it didn't fix the digest.
7451 *) Initial certificate chain verify code. Currently tests the untrusted
7452 certificates for consistency with the verify purpose (which is set
7453 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7455 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7456 this is because it will reject chains with invalid extensions whereas
7457 every previous version of OpenSSL and SSLeay made no checks at all.
7459 Trust code: checks the root CA for the relevant trust settings. Trust
7460 settings have an initial value consistent with the verify purpose: e.g.
7461 if the verify purpose is for SSL client use it expects the CA to be
7462 trusted for SSL client use. However the default value can be changed to
7463 permit custom trust settings: one example of this would be to only trust
7464 certificates from a specific "secure" set of CAs.
7466 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7467 which should be used for version portability: especially since the
7468 verify structure is likely to change more often now.
7470 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7471 to set them. If not set then assume SSL clients will verify SSL servers
7474 Two new options to the verify program: -untrusted allows a set of
7475 untrusted certificates to be passed in and -purpose which sets the
7476 intended purpose of the certificate. If a purpose is set then the
7477 new chain verify code is used to check extension consistency.
7480 *) Support for the authority information access extension.
7483 *) Modify RSA and DSA PEM read routines to transparently handle
7484 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7485 public keys in a format compatible with certificate
7486 SubjectPublicKeyInfo structures. Unfortunately there were already
7487 functions called *_PublicKey_* which used various odd formats so
7488 these are retained for compatibility: however the DSA variants were
7489 never in a public release so they have been deleted. Changed dsa/rsa
7490 utilities to handle the new format: note no releases ever handled public
7491 keys so we should be OK.
7493 The primary motivation for this change is to avoid the same fiasco
7494 that dogs private keys: there are several incompatible private key
7495 formats some of which are standard and some OpenSSL specific and
7496 require various evil hacks to allow partial transparent handling and
7497 even then it doesn't work with DER formats. Given the option anything
7498 other than PKCS#8 should be dumped: but the other formats have to
7499 stay in the name of compatibility.
7501 With public keys and the benefit of hindsight one standard format
7502 is used which works with EVP_PKEY, RSA or DSA structures: though
7503 it clearly returns an error if you try to read the wrong kind of key.
7505 Added a -pubkey option to the 'x509' utility to output the public key.
7506 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7507 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7508 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7509 that do the same as the EVP_PKEY_assign_*() except they up the
7510 reference count of the added key (they don't "swallow" the
7514 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7515 CRLs would fail if the file contained no certificates or no CRLs:
7516 added a new function to read in both types and return the number
7517 read: this means that if none are read it will be an error. The
7518 DER versions of the certificate and CRL reader would always fail
7519 because it isn't possible to mix certificates and CRLs in DER format
7520 without choking one or the other routine. Changed this to just read
7521 a certificate: this is the best we can do. Also modified the code
7522 in apps/verify.c to take notice of return codes: it was previously
7523 attempting to read in certificates from NULL pointers and ignoring
7524 any errors: this is one reason why the cert and CRL reader seemed
7525 to work. It doesn't check return codes from the default certificate
7526 routines: these may well fail if the certificates aren't installed.
7529 *) Code to support otherName option in GeneralName.
7532 *) First update to verify code. Change the verify utility
7533 so it warns if it is passed a self signed certificate:
7534 for consistency with the normal behaviour. X509_verify
7535 has been modified to it will now verify a self signed
7536 certificate if *exactly* the same certificate appears
7537 in the store: it was previously impossible to trust a
7538 single self signed certificate. This means that:
7539 openssl verify ss.pem
7540 now gives a warning about a self signed certificate but
7541 openssl verify -CAfile ss.pem ss.pem
7545 *) For servers, store verify_result in SSL_SESSION data structure
7546 (and add it to external session representation).
7547 This is needed when client certificate verifications fails,
7548 but an application-provided verification callback (set by
7549 SSL_CTX_set_cert_verify_callback) allows accepting the session
7550 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7551 but returns 1): When the session is reused, we have to set
7552 ssl->verify_result to the appropriate error code to avoid
7554 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7556 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7557 case in PKCS7_dataInit() where the signed PKCS7 structure
7558 didn't contain any existing data because it was being created.
7559 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7561 *) Add a salt to the key derivation routines in enc.c. This
7562 forms the first 8 bytes of the encrypted file. Also add a
7563 -S option to allow a salt to be input on the command line.
7566 *) New function X509_cmp(). Oddly enough there wasn't a function
7567 to compare two certificates. We do this by working out the SHA1
7568 hash and comparing that. X509_cmp() will be needed by the trust
7572 *) SSL_get1_session() is like SSL_get_session(), but increments
7573 the reference count in the SSL_SESSION returned.
7574 [Geoff Thorpe <geoff@eu.c2.net>]
7576 *) Fix for 'req': it was adding a null to request attributes.
7577 Also change the X509_LOOKUP and X509_INFO code to handle
7578 certificate auxiliary information.
7581 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7585 *) Add the possibility to add extra information to the memory leak
7586 detecting output, to form tracebacks, showing from where each
7587 allocation was originated: CRYPTO_push_info("constant string") adds
7588 the string plus current file name and line number to a per-thread
7589 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7590 is like calling CYRPTO_pop_info() until the stack is empty.
7591 Also updated memory leak detection code to be multi-thread-safe.
7594 *) Add options -text and -noout to pkcs7 utility and delete the
7595 encryption options which never did anything. Update docs.
7598 *) Add options to some of the utilities to allow the pass phrase
7599 to be included on either the command line (not recommended on
7600 OSes like Unix) or read from the environment. Update the
7601 manpages and fix a few bugs.
7604 *) Add a few manpages for some of the openssl commands.
7607 *) Fix the -revoke option in ca. It was freeing up memory twice,
7608 leaking and not finding already revoked certificates.
7611 *) Extensive changes to support certificate auxiliary information.
7612 This involves the use of X509_CERT_AUX structure and X509_AUX
7613 functions. An X509_AUX function such as PEM_read_X509_AUX()
7614 can still read in a certificate file in the usual way but it
7615 will also read in any additional "auxiliary information". By
7616 doing things this way a fair degree of compatibility can be
7617 retained: existing certificates can have this information added
7618 using the new 'x509' options.
7620 Current auxiliary information includes an "alias" and some trust
7621 settings. The trust settings will ultimately be used in enhanced
7622 certificate chain verification routines: currently a certificate
7623 can only be trusted if it is self signed and then it is trusted
7627 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7628 The problem was that one of the replacement routines had not been working
7629 since SSLeay releases. For now the offending routine has been replaced
7630 with non-optimised assembler. Even so, this now gives around 95%
7631 performance improvement for 1024 bit RSA signs.
7634 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7635 handling. Most clients have the effective key size in bits equal to
7636 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7637 A few however don't do this and instead use the size of the decrypted key
7638 to determine the RC2 key length and the AlgorithmIdentifier to determine
7639 the effective key length. In this case the effective key length can still
7640 be 40 bits but the key length can be 168 bits for example. This is fixed
7641 by manually forcing an RC2 key into the EVP_PKEY structure because the
7642 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7643 the key length and effective key length are equal.
7646 *) Add a bunch of functions that should simplify the creation of
7647 X509_NAME structures. Now you should be able to do:
7648 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7649 and have it automatically work out the correct field type and fill in
7650 the structures. The more adventurous can try:
7651 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7652 and it will (hopefully) work out the correct multibyte encoding.
7655 *) Change the 'req' utility to use the new field handling and multibyte
7656 copy routines. Before the DN field creation was handled in an ad hoc
7657 way in req, ca, and x509 which was rather broken and didn't support
7658 BMPStrings or UTF8Strings. Since some software doesn't implement
7659 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7660 using the dirstring_type option. See the new comment in the default
7661 openssl.cnf for more info.
7664 *) Make crypto/rand/md_rand.c more robust:
7665 - Assure unique random numbers after fork().
7666 - Make sure that concurrent threads access the global counter and
7667 md serializably so that we never lose entropy in them
7668 or use exactly the same state in multiple threads.
7669 Access to the large state is not always serializable because
7670 the additional locking could be a performance killer, and
7671 md should be large enough anyway.
7674 *) New file apps/app_rand.c with commonly needed functionality
7675 for handling the random seed file.
7677 Use the random seed file in some applications that previously did not:
7679 dsaparam -genkey (which also ignored its '-rand' option),
7682 x509 (when signing).
7683 Except on systems with /dev/urandom, it is crucial to have a random
7684 seed file at least for key creation, DSA signing, and for DH exchanges;
7685 for RSA signatures we could do without one.
7687 gendh and gendsa (unlike genrsa) used to read only the first byte
7688 of each file listed in the '-rand' option. The function as previously
7689 found in genrsa is now in app_rand.c and is used by all programs
7690 that support '-rand'.
7693 *) In RAND_write_file, use mode 0600 for creating files;
7694 don't just chmod when it may be too late.
7697 *) Report an error from X509_STORE_load_locations
7698 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7701 *) New function ASN1_mbstring_copy() this copies a string in either
7702 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7703 into an ASN1_STRING type. A mask of permissible types is passed
7704 and it chooses the "minimal" type to use or an error if not type
7708 *) Add function equivalents to the various macros in asn1.h. The old
7709 macros are retained with an M_ prefix. Code inside the library can
7710 use the M_ macros. External code (including the openssl utility)
7711 should *NOT* in order to be "shared library friendly".
7714 *) Add various functions that can check a certificate's extensions
7715 to see if it usable for various purposes such as SSL client,
7716 server or S/MIME and CAs of these types. This is currently
7717 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7718 verification. Also added a -purpose flag to x509 utility to
7719 print out all the purposes.
7722 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7726 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7727 for, obtain and decode and extension and obtain its critical flag.
7728 This allows all the necessary extension code to be handled in a
7729 single function call.
7732 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7733 platforms. See crypto/rc4/rc4_enc.c for further details.
7736 *) New -noout option to asn1parse. This causes no output to be produced
7737 its main use is when combined with -strparse and -out to extract data
7738 from a file (which may not be in ASN.1 format).
7741 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7742 when producing the local key id.
7743 [Richard Levitte <levitte@stacken.kth.se>]
7745 *) New option -dhparam in s_server. This allows a DH parameter file to be
7746 stated explicitly. If it is not stated then it tries the first server
7747 certificate file. The previous behaviour hard coded the filename
7751 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7752 a public key to be input or output. For example:
7753 openssl rsa -in key.pem -pubout -out pubkey.pem
7754 Also added necessary DSA public key functions to handle this.
7757 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7758 in the message. This was handled by allowing
7759 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7760 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7762 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7763 to the end of the strings whereas this didn't. This would cause problems
7764 if strings read with d2i_ASN1_bytes() were later modified.
7765 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7767 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7768 data and it contains EOF it will end up returning an error. This is
7769 caused by input 46 bytes long. The cause is due to the way base64
7770 BIOs find the start of base64 encoded data. They do this by trying a
7771 trial decode on each line until they find one that works. When they
7772 do a flag is set and it starts again knowing it can pass all the
7773 data directly through the decoder. Unfortunately it doesn't reset
7774 the context it uses. This means that if EOF is reached an attempt
7775 is made to pass two EOFs through the context and this causes the
7776 resulting error. This can also cause other problems as well. As is
7777 usual with these problems it takes *ages* to find and the fix is
7778 trivial: move one line.
7779 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7781 *) Ugly workaround to get s_client and s_server working under Windows. The
7782 old code wouldn't work because it needed to select() on sockets and the
7783 tty (for keypresses and to see if data could be written). Win32 only
7784 supports select() on sockets so we select() with a 1s timeout on the
7785 sockets and then see if any characters are waiting to be read, if none
7786 are present then we retry, we also assume we can always write data to
7787 the tty. This isn't nice because the code then blocks until we've
7788 received a complete line of data and it is effectively polling the
7789 keyboard at 1s intervals: however it's quite a bit better than not
7790 working at all :-) A dedicated Windows application might handle this
7791 with an event loop for example.
7794 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7795 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7796 will be called when RSA_sign() and RSA_verify() are used. This is useful
7797 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7798 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7799 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7800 This necessitated the support of an extra signature type NID_md5_sha1
7801 for SSL signatures and modifications to the SSL library to use it instead
7802 of calling RSA_public_decrypt() and RSA_private_encrypt().
7805 *) Add new -verify -CAfile and -CApath options to the crl program, these
7806 will lookup a CRL issuers certificate and verify the signature in a
7807 similar way to the verify program. Tidy up the crl program so it
7808 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7809 less strict. It will now permit CRL extensions even if it is not
7810 a V2 CRL: this will allow it to tolerate some broken CRLs.
7813 *) Initialize all non-automatic variables each time one of the openssl
7814 sub-programs is started (this is necessary as they may be started
7815 multiple times from the "OpenSSL>" prompt).
7816 [Lennart Bang, Bodo Moeller]
7818 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7819 removing all other RSA functionality (this is what NO_RSA does). This
7820 is so (for example) those in the US can disable those operations covered
7821 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7825 *) Non-copying interface to BIO pairs.
7826 (still largely untested)
7829 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7830 ASCII string. This was handled independently in various places before.
7833 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7834 UTF8 strings a character at a time.
7837 *) Use client_version from client hello to select the protocol
7838 (s23_srvr.c) and for RSA client key exchange verification
7839 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7842 *) Add various utility functions to handle SPKACs, these were previously
7843 handled by poking round in the structure internals. Added new function
7844 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7845 print, verify and generate SPKACs. Based on an original idea from
7846 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7849 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7852 *) Allow the config file extension section to be overwritten on the
7853 command line. Based on an original idea from Massimiliano Pala
7854 <madwolf@comune.modena.it>. The new option is called -extensions
7855 and can be applied to ca, req and x509. Also -reqexts to override
7856 the request extensions in req and -crlexts to override the crl extensions
7860 *) Add new feature to the SPKAC handling in ca. Now you can include
7861 the same field multiple times by preceding it by "XXXX." for example:
7864 this is the same syntax as used in the req config file.
7867 *) Allow certificate extensions to be added to certificate requests. These
7868 are specified in a 'req_extensions' option of the req section of the
7869 config file. They can be printed out with the -text option to req but
7870 are otherwise ignored at present.
7873 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7874 data read consists of only the final block it would not decrypted because
7875 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7876 A misplaced 'break' also meant the decrypted final block might not be
7877 copied until the next read.
7880 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7881 a few extra parameters to the DH structure: these will be useful if
7882 for example we want the value of 'q' or implement X9.42 DH.
7885 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7886 provides hooks that allow the default DSA functions or functions on a
7887 "per key" basis to be replaced. This allows hardware acceleration and
7888 hardware key storage to be handled without major modification to the
7889 library. Also added low level modexp hooks and CRYPTO_EX structure and
7890 associated functions.
7893 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7894 as "read only": it can't be written to and the buffer it points to will
7895 not be freed. Reading from a read only BIO is much more efficient than
7896 a normal memory BIO. This was added because there are several times when
7897 an area of memory needs to be read from a BIO. The previous method was
7898 to create a memory BIO and write the data to it, this results in two
7899 copies of the data and an O(n^2) reading algorithm. There is a new
7900 function BIO_new_mem_buf() which creates a read only memory BIO from
7901 an area of memory. Also modified the PKCS#7 routines to use read only
7905 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7906 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7907 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7908 but a retry condition occured while trying to read the rest.
7911 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7912 NID_pkcs7_encrypted by default: this was wrong since this should almost
7913 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7914 the encrypted data type: this is a more sensible place to put it and it
7915 allows the PKCS#12 code to be tidied up that duplicated this
7919 *) Changed obj_dat.pl script so it takes its input and output files on
7920 the command line. This should avoid shell escape redirection problems
7924 *) Initial support for certificate extension requests, these are included
7925 in things like Xenroll certificate requests. Included functions to allow
7926 extensions to be obtained and added.
7929 *) -crlf option to s_client and s_server for sending newlines as
7930 CRLF (as required by many protocols).
7933 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7935 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7936 [Ralf S. Engelschall]
7938 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7939 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7941 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7945 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7946 DH parameters/keys (q is lost during that conversion, but the resulting
7947 DH parameters contain its length).
7949 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7950 much faster than DH_generate_parameters (which creates parameters
7951 where p = 2*q + 1), and also the smaller q makes DH computations
7952 much more efficient (160-bit exponentiation instead of 1024-bit
7953 exponentiation); so this provides a convenient way to support DHE
7954 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7955 utter importance to use
7956 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7958 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7959 when such DH parameters are used, because otherwise small subgroup
7960 attacks may become possible!
7963 *) Avoid memory leak in i2d_DHparams.
7966 *) Allow the -k option to be used more than once in the enc program:
7967 this allows the same encrypted message to be read by multiple recipients.
7970 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7971 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7972 it will always use the numerical form of the OID, even if it has a short
7976 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7977 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7978 otherwise bn_mod_exp was called. In the case of hardware keys for example
7979 no private key components need be present and it might store extra data
7980 in the RSA structure, which cannot be accessed from bn_mod_exp.
7981 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7982 private key operations.
7985 *) Added support for SPARC Linux.
7988 *) pem_password_cb function type incompatibly changed from
7989 typedef int pem_password_cb(char *buf, int size, int rwflag);
7991 ....(char *buf, int size, int rwflag, void *userdata);
7992 so that applications can pass data to their callbacks:
7993 The PEM[_ASN1]_{read,write}... functions and macros now take an
7994 additional void * argument, which is just handed through whenever
7995 the password callback is called.
7996 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7998 New function SSL_CTX_set_default_passwd_cb_userdata.
8000 Compatibility note: As many C implementations push function arguments
8001 onto the stack in reverse order, the new library version is likely to
8002 interoperate with programs that have been compiled with the old
8003 pem_password_cb definition (PEM_whatever takes some data that
8004 happens to be on the stack as its last argument, and the callback
8005 just ignores this garbage); but there is no guarantee whatsoever that
8008 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8009 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8010 problems not only on Windows, but also on some Unix platforms.
8011 To avoid problematic command lines, these definitions are now in an
8012 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8013 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8016 *) MIPS III/IV assembler module is reimplemented.
8019 *) More DES library cleanups: remove references to srand/rand and
8020 delete an unused file.
8023 *) Add support for the the free Netwide assembler (NASM) under Win32,
8024 since not many people have MASM (ml) and it can be hard to obtain.
8025 This is currently experimental but it seems to work OK and pass all
8026 the tests. Check out INSTALL.W32 for info.
8029 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8030 without temporary keys kept an extra copy of the server key,
8031 and connections with temporary keys did not free everything in case
8035 *) New function RSA_check_key and new openssl rsa option -check
8036 for verifying the consistency of RSA keys.
8037 [Ulf Moeller, Bodo Moeller]
8039 *) Various changes to make Win32 compile work:
8040 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8041 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8042 comparison" warnings.
8043 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8046 *) Add a debugging option to PKCS#5 v2 key generation function: when
8047 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8048 derived keys are printed to stderr.
8051 *) Copy the flags in ASN1_STRING_dup().
8052 [Roman E. Pavlov <pre@mo.msk.ru>]
8054 *) The x509 application mishandled signing requests containing DSA
8055 keys when the signing key was also DSA and the parameters didn't match.
8057 It was supposed to omit the parameters when they matched the signing key:
8058 the verifying software was then supposed to automatically use the CA's
8059 parameters if they were absent from the end user certificate.
8061 Omitting parameters is no longer recommended. The test was also
8062 the wrong way round! This was probably due to unusual behaviour in
8063 EVP_cmp_parameters() which returns 1 if the parameters match.
8064 This meant that parameters were omitted when they *didn't* match and
8065 the certificate was useless. Certificates signed with 'ca' didn't have
8067 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8069 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8070 The interface is as follows:
8071 Applications can use
8072 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8073 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8074 "off" is now the default.
8075 The library internally uses
8076 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8077 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8078 to disable memory-checking temporarily.
8080 Some inconsistent states that previously were possible (and were
8081 even the default) are now avoided.
8083 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8084 with each memory chunk allocated; this is occasionally more helpful
8085 than just having a counter.
8087 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8089 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8093 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8094 which largely parallels "options", but is for changing API behaviour,
8095 whereas "options" are about protocol behaviour.
8096 Initial "mode" flags are:
8098 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8099 a single record has been written.
8100 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8101 retries use the same buffer location.
8102 (But all of the contents must be
8106 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8109 *) Fix problems with no-hmac etc.
8110 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8112 *) New functions RSA_get_default_method(), RSA_set_method() and
8113 RSA_get_method(). These allows replacement of RSA_METHODs without having
8114 to mess around with the internals of an RSA structure.
8117 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8118 Also really enable memory leak checks in openssl.c and in some
8120 [Chad C. Mulligan, Bodo Moeller]
8122 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8123 up the length of negative integers. This has now been simplified to just
8124 store the length when it is first determined and use it later, rather
8125 than trying to keep track of where data is copied and updating it to
8127 [Steve Henson, reported by Brien Wheeler
8128 <bwheeler@authentica-security.com>]
8130 *) Add a new function PKCS7_signatureVerify. This allows the verification
8131 of a PKCS#7 signature but with the signing certificate passed to the
8132 function itself. This contrasts with PKCS7_dataVerify which assumes the
8133 certificate is present in the PKCS#7 structure. This isn't always the
8134 case: certificates can be omitted from a PKCS#7 structure and be
8135 distributed by "out of band" means (such as a certificate database).
8138 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8139 function prototypes in pem.h, also change util/mkdef.pl to add the
8140 necessary function names.
8143 *) mk1mf.pl (used by Windows builds) did not properly read the
8144 options set by Configure in the top level Makefile, and Configure
8145 was not even able to write more than one option correctly.
8146 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8149 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8150 file to be loaded from a BIO or FILE pointer. The BIO version will
8151 for example allow memory BIOs to contain config info.
8154 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8155 Whoever hopes to achieve shared-library compatibility across versions
8156 must use this, not the compile-time macro.
8157 (Exercise 0.9.4: Which is the minimum library version required by
8159 Note: All this applies only to multi-threaded programs, others don't
8163 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8164 through a BIO pair triggered the default case, i.e.
8165 SSLerr(...,SSL_R_UNKNOWN_STATE).
8168 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8169 can use the SSL library even if none of the specific BIOs is
8173 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8174 for the encoded length.
8175 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8177 *) Add initial documentation of the X509V3 functions.
8180 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8181 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8182 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8183 secure PKCS#8 private key format with a high iteration count.
8186 *) Fix determination of Perl interpreter: A perl or perl5
8187 _directory_ in $PATH was also accepted as the interpreter.
8188 [Ralf S. Engelschall]
8190 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8191 wrong with it but it was very old and did things like calling
8192 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8196 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8197 to use the new extension code.
8200 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8201 with macros. This should make it easier to change their form, add extra
8202 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8206 *) Add to configuration table a new entry that can specify an alternative
8207 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8208 according to Mark Crispin <MRC@Panda.COM>.
8212 *) DES CBC did not update the IV. Weird.
8215 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8216 Changing the behaviour of the former might break existing programs --
8217 where IV updating is needed, des_ncbc_encrypt can be used.
8220 *) When bntest is run from "make test" it drives bc to check its
8221 calculations, as well as internally checking them. If an internal check
8222 fails, it needs to cause bc to give a non-zero result or make test carries
8223 on without noticing the failure. Fixed.
8226 *) DES library cleanups.
8229 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8230 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8231 ciphers. NOTE: although the key derivation function has been verified
8232 against some published test vectors it has not been extensively tested
8233 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8237 *) Instead of "mkdir -p", which is not fully portable, use new
8238 Perl script "util/mkdir-p.pl".
8241 *) Rewrite the way password based encryption (PBE) is handled. It used to
8242 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8243 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8244 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8245 the 'parameter' field of the AlgorithmIdentifier is passed to the
8246 underlying key generation function so it must do its own ASN1 parsing.
8247 This has also changed the EVP_PBE_CipherInit() function which now has a
8248 'parameter' argument instead of literal salt and iteration count values
8249 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8252 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8253 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8254 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8255 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8256 value was just used as a "magic string" and not used directly its
8257 value doesn't matter.
8260 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8264 *) "linux-sparc64" configuration (ultrapenguin).
8265 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8266 "linux-sparc" configuration.
8267 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8269 *) config now generates no-xxx options for missing ciphers.
8272 *) Support the EBCDIC character set (work in progress).
8273 File ebcdic.c not yet included because it has a different license.
8274 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8276 *) Support BS2000/OSD-POSIX.
8277 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8279 *) Make callbacks for key generation use void * instead of char *.
8282 *) Make S/MIME samples compile (not yet tested).
8285 *) Additional typesafe stacks.
8288 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8292 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8294 *) New configuration variant "sco5-gcc".
8296 *) Updated some demos.
8297 [Sean O Riordain, Wade Scholine]
8299 *) Add missing BIO_free at exit of pkcs12 application.
8302 *) Fix memory leak in conf.c.
8305 *) Updates for Win32 to assembler version of MD5.
8308 *) Set #! path to perl in apps/der_chop to where we found it
8309 instead of using a fixed path.
8312 *) SHA library changes for irix64-mips4-cc.
8315 *) Improvements for VMS support.
8319 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8321 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8322 This also avoids the problems with SC4.2 and unpatched SC5.
8323 [Andy Polyakov <appro@fy.chalmers.se>]
8325 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8326 These are required because of the typesafe stack would otherwise break
8327 existing code. If old code used a structure member which used to be STACK
8328 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8329 sk_num or sk_value it would produce an error because the num, data members
8330 are not present in STACK_OF. Now it just produces a warning. sk_set
8331 replaces the old method of assigning a value to sk_value
8332 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8333 that does this will no longer work (and should use sk_set instead) but
8334 this could be regarded as a "questionable" behaviour anyway.
8337 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8338 correctly handle encrypted S/MIME data.
8341 *) Change type of various DES function arguments from des_cblock
8342 (which means, in function argument declarations, pointer to char)
8343 to des_cblock * (meaning pointer to array with 8 char elements),
8344 which allows the compiler to do more typechecking; it was like
8345 that back in SSLeay, but with lots of ugly casts.
8347 Introduce new type const_des_cblock.
8350 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8351 problems: find RecipientInfo structure that matches recipient certificate
8352 and initialise the ASN1 structures properly based on passed cipher.
8355 *) Belatedly make the BN tests actually check the results.
8358 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8359 to and from BNs: it was completely broken. New compilation option
8360 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8361 key elements as negative integers.
8364 *) Reorganize and speed up MD5.
8365 [Andy Polyakov <appro@fy.chalmers.se>]
8368 [Richard Levitte <richard@levitte.org>]
8370 *) New option -out to asn1parse to allow the parsed structure to be
8371 output to a file. This is most useful when combined with the -strparse
8372 option to examine the output of things like OCTET STRINGS.
8375 *) Make SSL library a little more fool-proof by not requiring any longer
8376 that SSL_set_{accept,connect}_state be called before
8377 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8378 in many applications because usually everything *appeared* to work as
8379 intended anyway -- now it really works as intended).
8382 *) Move openssl.cnf out of lib/.
8385 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8386 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8387 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8388 [Ralf S. Engelschall]
8390 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8391 handle PKCS#7 enveloped data properly.
8392 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8394 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8395 copying pointers. The cert_st handling is changed by this in
8396 various ways (and thus what used to be known as ctx->default_cert
8397 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8398 any longer when s->cert does not give us what we need).
8399 ssl_cert_instantiate becomes obsolete by this change.
8400 As soon as we've got the new code right (possibly it already is?),
8401 we have solved a couple of bugs of the earlier code where s->cert
8402 was used as if it could not have been shared with other SSL structures.
8404 Note that using the SSL API in certain dirty ways now will result
8405 in different behaviour than observed with earlier library versions:
8406 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8407 does not influence s as it used to.
8409 In order to clean up things more thoroughly, inside SSL_SESSION
8410 we don't use CERT any longer, but a new structure SESS_CERT
8411 that holds per-session data (if available); currently, this is
8412 the peer's certificate chain and, for clients, the server's certificate
8413 and temporary key. CERT holds only those values that can have
8414 meaningful defaults in an SSL_CTX.
8417 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8418 from the internal representation. Various PKCS#7 fixes: remove some
8419 evil casts and set the enc_dig_alg field properly based on the signing
8423 *) Allow PKCS#12 password to be set from the command line or the
8424 environment. Let 'ca' get its config file name from the environment
8425 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8429 *) Allow certificate policies extension to use an IA5STRING for the
8430 organization field. This is contrary to the PKIX definition but
8431 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8435 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8436 without disallowing inline assembler and the like for non-pedantic builds.
8439 *) Support Borland C++ builder.
8440 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8445 *) SHA-1 cleanups and performance enhancements.
8446 [Andy Polyakov <appro@fy.chalmers.se>]
8448 *) Sparc v8plus assembler for the bignum library.
8449 [Andy Polyakov <appro@fy.chalmers.se>]
8451 *) Accept any -xxx and +xxx compiler options in Configure.
8454 *) Update HPUX configuration.
8457 *) Add missing sk_<type>_unshift() function to safestack.h
8458 [Ralf S. Engelschall]
8460 *) New function SSL_CTX_use_certificate_chain_file that sets the
8461 "extra_cert"s in addition to the certificate. (This makes sense
8462 only for "PEM" format files, as chains as a whole are not
8466 *) Support verify_depth from the SSL API.
8467 x509_vfy.c had what can be considered an off-by-one-error:
8468 Its depth (which was not part of the external interface)
8469 was actually counting the number of certificates in a chain;
8470 now it really counts the depth.
8473 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8474 instead of X509err, which often resulted in confusing error
8475 messages since the error codes are not globally unique
8476 (e.g. an alleged error in ssl3_accept when a certificate
8477 didn't match the private key).
8479 *) New function SSL_CTX_set_session_id_context that allows to set a default
8480 value (so that you don't need SSL_set_session_id_context for each
8481 connection using the SSL_CTX).
8484 *) OAEP decoding bug fix.
8487 *) Support INSTALL_PREFIX for package builders, as proposed by
8491 *) New Configure options "threads" and "no-threads". For systems
8492 where the proper compiler options are known (currently Solaris
8493 and Linux), "threads" is the default.
8496 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8499 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8500 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8501 such as /usr/local/bin.
8504 *) "make linux-shared" to build shared libraries.
8505 [Niels Poppe <niels@netbox.org>]
8507 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8510 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8511 extension adding in x509 utility.
8514 *) Remove NOPROTO sections and error code comments.
8517 *) Partial rewrite of the DEF file generator to now parse the ANSI
8521 *) New Configure options --prefix=DIR and --openssldir=DIR.
8524 *) Complete rewrite of the error code script(s). It is all now handled
8525 by one script at the top level which handles error code gathering,
8526 header rewriting and C source file generation. It should be much better
8527 than the old method: it now uses a modified version of Ulf's parser to
8528 read the ANSI prototypes in all header files (thus the old K&R definitions
8529 aren't needed for error creation any more) and do a better job of
8530 translating function codes into names. The old 'ASN1 error code imbedded
8531 in a comment' is no longer necessary and it doesn't use .err files which
8532 have now been deleted. Also the error code call doesn't have to appear all
8533 on one line (which resulted in some large lines...).
8536 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8539 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8540 0 (which usually indicates a closed connection), but continue reading.
8543 *) Fix some race conditions.
8546 *) Add support for CRL distribution points extension. Add Certificate
8547 Policies and CRL distribution points documentation.
8550 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8553 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8554 8 of keying material. Merlin has also confirmed interop with this fix
8555 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8556 [Merlin Hughes <merlin@baltimore.ie>]
8558 *) Fix lots of warnings.
8559 [Richard Levitte <levitte@stacken.kth.se>]
8561 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8562 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8563 [Richard Levitte <levitte@stacken.kth.se>]
8565 *) Fix problems with sizeof(long) == 8.
8566 [Andy Polyakov <appro@fy.chalmers.se>]
8568 *) Change functions to ANSI C.
8571 *) Fix typos in error codes.
8572 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8574 *) Remove defunct assembler files from Configure.
8577 *) SPARC v8 assembler BIGNUM implementation.
8578 [Andy Polyakov <appro@fy.chalmers.se>]
8580 *) Support for Certificate Policies extension: both print and set.
8581 Various additions to support the r2i method this uses.
8584 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8585 return a const string when you are expecting an allocated buffer.
8588 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8589 types DirectoryString and DisplayText.
8592 *) Add code to allow r2i extensions to access the configuration database,
8593 add an LHASH database driver and add several ctx helper functions.
8596 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8597 fail when they extended the size of a BIGNUM.
8600 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8601 support typesafe stack.
8604 *) Fix typo in SSL_[gs]et_options().
8605 [Nils Frostberg <nils@medcom.se>]
8607 *) Delete various functions and files that belonged to the (now obsolete)
8608 old X509V3 handling code.
8611 *) New Configure option "rsaref".
8614 *) Don't auto-generate pem.h.
8617 *) Introduce type-safe ASN.1 SETs.
8620 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8621 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8623 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8624 that links with OpenSSL (well at least cause lots of warnings), but fear
8625 not: the conversion is trivial, and it eliminates loads of evil casts. A
8626 few STACKed things have been converted already. Feel free to convert more.
8627 In the fullness of time, I'll do away with the STACK type altogether.
8630 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8631 specified in <certfile> by updating the entry in the index.txt file.
8632 This way one no longer has to edit the index.txt file manually for
8633 revoking a certificate. The -revoke option does the gory details now.
8634 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8636 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8637 `-text' option at all and this way the `-noout -text' combination was
8638 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8639 [Ralf S. Engelschall]
8641 *) Make sure a corresponding plain text error message exists for the
8642 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8643 verify callback function determined that a certificate was revoked.
8644 [Ralf S. Engelschall]
8646 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8647 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8648 all available cipers including rc5, which was forgotten until now.
8649 In order to let the testing shell script know which algorithms
8650 are available, a new (up to now undocumented) command
8651 "openssl list-cipher-commands" is used.
8654 *) Bugfix: s_client occasionally would sleep in select() when
8655 it should have checked SSL_pending() first.
8658 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8659 the raw DSA values prior to ASN.1 encoding.
8662 *) Tweaks to Configure
8663 [Niels Poppe <niels@netbox.org>]
8665 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8669 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8672 *) New config option to avoid instructions that are illegal on the 80386.
8673 The default code is faster, but requires at least a 486.
8676 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8677 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8678 same as SSL2_VERSION anyway.
8681 *) New "-showcerts" option for s_client.
8684 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8685 application. Various cleanups and fixes.
8688 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8689 modify error routines to work internally. Add error codes and PBE init
8690 to library startup routines.
8693 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8694 packing functions to asn1 and evp. Changed function names and error
8695 codes along the way.
8698 *) PKCS12 integration: and so it begins... First of several patches to
8699 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8700 objects to objects.h
8703 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8704 and display support for Thawte strong extranet extension.
8707 *) Add LinuxPPC support.
8708 [Jeff Dubrule <igor@pobox.org>]
8710 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8711 bn_div_words in alpha.s.
8712 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8714 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8715 OAEP isn't supported when OpenSSL is built with RSAref.
8716 [Ulf Moeller <ulf@fitug.de>]
8718 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8719 so they no longer are missing under -DNOPROTO.
8720 [Soren S. Jorvang <soren@t.dk>]
8723 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8725 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8726 doesn't work when the session is reused. Coming soon!
8729 *) Fix a security hole, that allows sessions to be reused in the wrong
8730 context thus bypassing client cert protection! All software that uses
8731 client certs and session caches in multiple contexts NEEDS PATCHING to
8732 allow session reuse! A fuller solution is in the works.
8733 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8735 *) Some more source tree cleanups (removed obsolete files
8736 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8737 permission on "config" script to be executable) and a fix for the INSTALL
8739 [Ulf Moeller <ulf@fitug.de>]
8741 *) Remove some legacy and erroneous uses of malloc, free instead of
8743 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8745 *) Make rsa_oaep_test return non-zero on error.
8746 [Ulf Moeller <ulf@fitug.de>]
8748 *) Add support for native Solaris shared libraries. Configure
8749 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8750 if someone would make that last step automatic.
8751 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8753 *) ctx_size was not built with the right compiler during "make links". Fixed.
8756 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8757 except NULL ciphers". This means the default cipher list will no longer
8758 enable NULL ciphers. They need to be specifically enabled e.g. with
8759 the string "DEFAULT:eNULL".
8762 *) Fix to RSA private encryption routines: if p < q then it would
8763 occasionally produce an invalid result. This will only happen with
8764 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8767 *) Be less restrictive and allow also `perl util/perlpath.pl
8768 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8769 because this way one can also use an interpreter named `perl5' (which is
8770 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8771 installed as `perl').
8772 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8774 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8775 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8777 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8778 advapi32.lib to Win32 build and change the pem test comparision
8779 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8780 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8781 and crypto/des/ede_cbcm_enc.c.
8784 *) DES quad checksum was broken on big-endian architectures. Fixed.
8787 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8788 Win32 test batch file so it (might) work again. The Win32 test batch file
8789 is horrible: I feel ill....
8792 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8793 in e_os.h. Audit of header files to check ANSI and non ANSI
8794 sections: 10 functions were absent from non ANSI section and not exported
8795 from Windows DLLs. Fixed up libeay.num for new functions.
8798 *) Make `openssl version' output lines consistent.
8799 [Ralf S. Engelschall]
8801 *) Fix Win32 symbol export lists for BIO functions: Added
8802 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8803 to ms/libeay{16,32}.def.
8804 [Ralf S. Engelschall]
8806 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8807 fine under Unix and passes some trivial tests I've now added. But the
8808 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8809 added to make sure no one expects that this stuff really works in the
8810 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8811 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8813 [Ralf S. Engelschall]
8815 *) Fix the generation of two part addresses in perl.
8816 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8818 *) Add config entry for Linux on MIPS.
8819 [John Tobey <jtobey@channel1.com>]
8821 *) Make links whenever Configure is run, unless we are on Windoze.
8824 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8825 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8829 *) Add a useful kludge to allow package maintainers to specify compiler and
8830 other platforms details on the command line without having to patch the
8831 Configure script everytime: One now can use ``perl Configure
8832 <id>:<details>'', i.e. platform ids are allowed to have details appended
8833 to them (seperated by colons). This is treated as there would be a static
8834 pre-configured entry in Configure's %table under key <id> with value
8835 <details> and ``perl Configure <id>'' is called. So, when you want to
8836 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8837 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8838 now, which overrides the FreeBSD-elf entry on-the-fly.
8839 [Ralf S. Engelschall]
8841 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8844 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8845 on the `perl Configure ...' command line. This way one can compile
8846 OpenSSL libraries with Position Independent Code (PIC) which is needed
8847 for linking it into DSOs.
8848 [Ralf S. Engelschall]
8850 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8854 *) Cleaned up the LICENSE document: The official contact for any license
8855 questions now is the OpenSSL core team under openssl-core@openssl.org.
8856 And add a paragraph about the dual-license situation to make sure people
8857 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8858 to the OpenSSL toolkit.
8859 [Ralf S. Engelschall]
8861 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8862 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8863 Additonally cleaned up the `make links' target: Remove unnecessary
8864 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8865 to speed processing and no longer clutter the display with confusing
8866 stuff. Instead only the actually done links are displayed.
8867 [Ralf S. Engelschall]
8869 *) Permit null encryption ciphersuites, used for authentication only. It used
8870 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8871 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8875 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8876 signed attributes when verifying signatures (this would break them),
8877 the detached data encoding was wrong and public keys obtained using
8878 X509_get_pubkey() weren't freed.
8881 *) Add text documentation for the BUFFER functions. Also added a work around
8882 to a Win95 console bug. This was triggered by the password read stuff: the
8883 last character typed gets carried over to the next fread(). If you were
8884 generating a new cert request using 'req' for example then the last
8885 character of the passphrase would be CR which would then enter the first
8889 *) Added the new `Includes OpenSSL Cryptography Software' button as
8890 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8891 button and can be used by applications based on OpenSSL to show the
8892 relationship to the OpenSSL project.
8893 [Ralf S. Engelschall]
8895 *) Remove confusing variables in function signatures in files
8896 ssl/ssl_lib.c and ssl/ssl.h.
8897 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8899 *) Don't install bss_file.c under PREFIX/include/
8900 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8902 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8903 functions that return function pointers and has support for NT specific
8904 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8905 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8906 unsigned to signed types: this was killing the Win32 compile.
8909 *) Add new certificate file to stack functions,
8910 SSL_add_dir_cert_subjects_to_stack() and
8911 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8912 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8913 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8914 This means that Apache-SSL and similar packages don't have to mess around
8915 to add as many CAs as they want to the preferred list.
8918 *) Experiment with doxygen documentation. Currently only partially applied to
8920 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8921 openssl.doxy as the configuration file.
8924 *) Get rid of remaining C++-style comments which strict C compilers hate.
8925 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8927 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8928 compiled in by default: it has problems with large keys.
8931 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8932 DH private keys and/or callback functions which directly correspond to
8933 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8934 is needed for applications which have to configure certificates on a
8935 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8937 For the RSA certificate situation is makes no difference, but
8938 for the DSA certificate situation this fixes the "no shared cipher"
8939 problem where the OpenSSL cipher selection procedure failed because the
8940 temporary keys were not overtaken from the context and the API provided
8941 no way to reconfigure them.
8942 The new functions now let applications reconfigure the stuff and they
8943 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8944 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8945 non-public-API function ssl_cert_instantiate() is used as a helper
8946 function and also to reduce code redundancy inside ssl_rsa.c.
8947 [Ralf S. Engelschall]
8949 *) Move s_server -dcert and -dkey options out of the undocumented feature
8950 area because they are useful for the DSA situation and should be
8951 recognized by the users.
8952 [Ralf S. Engelschall]
8954 *) Fix the cipher decision scheme for export ciphers: the export bits are
8955 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8956 SSL_EXP_MASK. So, the original variable has to be used instead of the
8957 already masked variable.
8958 [Richard Levitte <levitte@stacken.kth.se>]
8960 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8961 [Richard Levitte <levitte@stacken.kth.se>]
8963 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8964 from `int' to `unsigned int' because it's a length and initialized by
8965 EVP_DigestFinal() which expects an `unsigned int *'.
8966 [Richard Levitte <levitte@stacken.kth.se>]
8968 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8969 script. Instead use the usual Shell->Perl transition trick.
8970 [Ralf S. Engelschall]
8972 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8973 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8974 -noout -modulus' as it's already the case for `openssl rsa -noout
8975 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8976 currently the public key is printed (a decision which was already done by
8977 `openssl dsa -modulus' in the past) which serves a similar purpose.
8978 Additionally the NO_RSA no longer completely removes the whole -modulus
8979 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8981 [Ralf S. Engelschall]
8983 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8984 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8985 [Arne Ansper <arne@ats.cyber.ee>]
8987 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8988 to be added. Now both 'req' and 'ca' can use new objects defined in the
8992 *) Add cool BIO that does syslog (or event log on NT).
8993 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8995 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8996 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8997 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8998 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9001 *) Add preliminary config info for new extension code.
9004 *) Make RSA_NO_PADDING really use no padding.
9005 [Ulf Moeller <ulf@fitug.de>]
9007 *) Generate errors when private/public key check is done.
9010 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9011 for some CRL extensions and new objects added.
9014 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9015 key usage extension and fuller support for authority key id.
9018 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9019 padding method for RSA, which is recommended for new applications in PKCS
9020 #1 v2.0 (RFC 2437, October 1998).
9021 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9022 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9023 against Bleichbacher's attack on RSA.
9024 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9027 *) Updates to the new SSL compression code
9028 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9030 *) Fix so that the version number in the master secret, when passed
9031 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9032 (because the server will not accept higher), that the version number
9033 is 0x03,0x01, not 0x03,0x00
9034 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9036 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9037 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9038 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9041 *) Support for RAW extensions where an arbitrary extension can be
9042 created by including its DER encoding. See apps/openssl.cnf for
9046 *) Make sure latest Perl versions don't interpret some generated C array
9047 code as Perl array code in the crypto/err/err_genc.pl script.
9048 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9050 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9051 not many people have the assembler. Various Win32 compilation fixes and
9052 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9056 *) Modify configure script 'Configure' to automatically create crypto/date.h
9057 file under Win32 and also build pem.h from pem.org. New script
9058 util/mkfiles.pl to create the MINFO file on environments that can't do a
9059 'make files': perl util/mkfiles.pl >MINFO should work.
9062 *) Major rework of DES function declarations, in the pursuit of correctness
9063 and purity. As a result, many evil casts evaporated, and some weirdness,
9064 too. You may find this causes warnings in your code. Zapping your evil
9065 casts will probably fix them. Mostly.
9068 *) Fix for a typo in asn1.h. Bug fix to object creation script
9069 obj_dat.pl. It considered a zero in an object definition to mean
9070 "end of object": none of the objects in objects.h have any zeros
9071 so it wasn't spotted.
9072 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9074 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9075 Masking (CBCM). In the absence of test vectors, the best I have been able
9076 to do is check that the decrypt undoes the encrypt, so far. Send me test
9077 vectors if you have them.
9080 *) Correct calculation of key length for export ciphers (too much space was
9081 allocated for null ciphers). This has not been tested!
9084 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9085 message is now correct (it understands "crypto" and "ssl" on its
9086 command line). There is also now an "update" option. This will update
9087 the util/ssleay.num and util/libeay.num files with any new functions.
9089 perl util/mkdef.pl crypto ssl update
9090 it will update them.
9093 *) Overhauled the Perl interface (perl/*):
9094 - ported BN stuff to OpenSSL's different BN library
9095 - made the perl/ source tree CVS-aware
9096 - renamed the package from SSLeay to OpenSSL (the files still contain
9097 their history because I've copied them in the repository)
9098 - removed obsolete files (the test scripts will be replaced
9099 by better Test::Harness variants in the future)
9100 [Ralf S. Engelschall]
9102 *) First cut for a very conservative source tree cleanup:
9103 1. merge various obsolete readme texts into doc/ssleay.txt
9104 where we collect the old documents and readme texts.
9105 2. remove the first part of files where I'm already sure that we no
9106 longer need them because of three reasons: either they are just temporary
9107 files which were left by Eric or they are preserved original files where
9108 I've verified that the diff is also available in the CVS via "cvs diff
9109 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9110 the crypto/md/ stuff).
9111 [Ralf S. Engelschall]
9113 *) More extension code. Incomplete support for subject and issuer alt
9114 name, issuer and authority key id. Change the i2v function parameters
9115 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9116 what that's for :-) Fix to ASN1 macro which messed up
9117 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9120 *) Preliminary support for ENUMERATED type. This is largely copied from the
9124 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9125 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9127 *) Make sure `make rehash' target really finds the `openssl' program.
9128 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9130 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9131 like to hear about it if this slows down other processors.
9134 *) Add CygWin32 platform information to Configure script.
9135 [Alan Batie <batie@aahz.jf.intel.com>]
9137 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9138 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9140 *) New program nseq to manipulate netscape certificate sequences
9143 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9147 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9148 but the BN code had some problems that would cause failures when
9149 doing certificate verification and some other functions.
9150 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9152 *) Add ASN1 and PEM code to support netscape certificate sequences.
9155 *) Add ASN1 and PEM code to support netscape certificate sequences.
9158 *) Add several PKIX and private extended key usage OIDs.
9161 *) Modify the 'ca' program to handle the new extension code. Modify
9162 openssl.cnf for new extension format, add comments.
9165 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9166 and add a sample to openssl.cnf so req -x509 now adds appropriate
9170 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9171 error code, add initial support to X509_print() and x509 application.
9174 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9175 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9176 stuff is currently isolated and isn't even compiled yet.
9179 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9180 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9181 Removed the versions check from X509 routines when loading extensions:
9182 this allows certain broken certificates that don't set the version
9183 properly to be processed.
9186 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9187 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9188 can still be regenerated with "make depend".
9191 *) Spelling mistake in C version of CAST-128.
9192 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9194 *) Changes to the error generation code. The perl script err-code.pl
9195 now reads in the old error codes and retains the old numbers, only
9196 adding new ones if necessary. It also only changes the .err files if new
9197 codes are added. The makefiles have been modified to only insert errors
9198 when needed (to avoid needlessly modifying header files). This is done
9199 by only inserting errors if the .err file is newer than the auto generated
9200 C file. To rebuild all the error codes from scratch (the old behaviour)
9201 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9202 or delete all the .err files.
9205 *) CAST-128 was incorrectly implemented for short keys. The C version has
9206 been fixed, but is untested. The assembler versions are also fixed, but
9207 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9208 to regenerate it if needed.
9209 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9210 Hagino <itojun@kame.net>]
9212 *) File was opened incorrectly in randfile.c.
9213 [Ulf Möller <ulf@fitug.de>]
9215 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9216 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9217 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9218 al: it's just almost always a UTCTime. Note this patch adds new error
9219 codes so do a "make errors" if there are problems.
9222 *) Correct Linux 1 recognition in config.
9223 [Ulf Möller <ulf@fitug.de>]
9225 *) Remove pointless MD5 hash when using DSA keys in ca.
9226 [Anonymous <nobody@replay.com>]
9228 *) Generate an error if given an empty string as a cert directory. Also
9229 generate an error if handed NULL (previously returned 0 to indicate an
9230 error, but didn't set one).
9231 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9233 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9236 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9237 parameters. This was causing a warning which killed off the Win32 compile.
9240 *) Remove C++ style comments from crypto/bn/bn_local.h.
9241 [Neil Costigan <neil.costigan@celocom.com>]
9243 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9244 based on a text string, looking up short and long names and finally
9245 "dot" format. The "dot" format stuff didn't work. Added new function
9246 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9247 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9248 OID is not part of the table.
9251 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9252 X509_LOOKUP_by_alias().
9255 *) Sort openssl functions by name.
9258 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9259 encryption from sample DSA keys (in case anyone is interested the password
9263 *) Make _all_ *_free functions accept a NULL pointer.
9264 [Frans Heymans <fheymans@isaserver.be>]
9266 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9268 [Anonymous <nobody@replay.com>]
9270 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9271 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9273 *) Don't blow it for numeric -newkey arguments to apps/req.
9274 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9276 *) Temp key "for export" tests were wrong in s3_srvr.c.
9277 [Anonymous <nobody@replay.com>]
9279 *) Add prototype for temp key callback functions
9280 SSL_CTX_set_tmp_{rsa,dh}_callback().
9283 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9284 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9287 *) X509_name_add_entry() freed the wrong thing after an error.
9288 [Arne Ansper <arne@ats.cyber.ee>]
9290 *) rsa_eay.c would attempt to free a NULL context.
9291 [Arne Ansper <arne@ats.cyber.ee>]
9293 *) BIO_s_socket() had a broken should_retry() on Windoze.
9294 [Arne Ansper <arne@ats.cyber.ee>]
9296 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9297 [Arne Ansper <arne@ats.cyber.ee>]
9299 *) Make sure the already existing X509_STORE->depth variable is initialized
9300 in X509_STORE_new(), but document the fact that this variable is still
9301 unused in the certificate verification process.
9302 [Ralf S. Engelschall]
9304 *) Fix the various library and apps files to free up pkeys obtained from
9305 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9308 *) Fix reference counting in X509_PUBKEY_get(). This makes
9309 demos/maurice/example2.c work, amongst others, probably.
9310 [Steve Henson and Ben Laurie]
9312 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9313 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9314 are no longer created. This way we have a single and consistent command
9315 line interface `openssl <command>', similar to `cvs <command>'.
9316 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9318 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9319 BIT STRING wrapper always have zero unused bits.
9322 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9325 *) Make the top-level INSTALL documentation easier to understand.
9328 *) Makefiles updated to exit if an error occurs in a sub-directory
9329 make (including if user presses ^C) [Paul Sutton]
9331 *) Make Montgomery context stuff explicit in RSA data structure.
9334 *) Fix build order of pem and err to allow for generated pem.h.
9337 *) Fix renumbering bug in X509_NAME_delete_entry().
9340 *) Enhanced the err-ins.pl script so it makes the error library number
9341 global and can add a library name. This is needed for external ASN1 and
9342 other error libraries.
9345 *) Fixed sk_insert which never worked properly.
9348 *) Fix ASN1 macros so they can handle indefinite length construted
9349 EXPLICIT tags. Some non standard certificates use these: they can now
9353 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9354 into a single doc/ssleay.txt bundle. This way the information is still
9355 preserved but no longer messes up this directory. Now it's new room for
9356 the new set of documenation files.
9357 [Ralf S. Engelschall]
9359 *) SETs were incorrectly DER encoded. This was a major pain, because they
9360 shared code with SEQUENCEs, which aren't coded the same. This means that
9361 almost everything to do with SETs or SEQUENCEs has either changed name or
9362 number of arguments.
9363 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9365 *) Fix test data to work with the above.
9368 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9369 was already fixed by Eric for 0.9.1 it seems.
9370 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9372 *) Autodetect FreeBSD3.
9375 *) Fix various bugs in Configure. This affects the following platforms:
9379 unixware-2.0-pentium
9383 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9384 before they are needed.
9387 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9391 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9393 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9394 changed SSLeay to OpenSSL in version strings.
9395 [Ralf S. Engelschall]
9397 *) Some fixups to the top-level documents.
9400 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9401 because the symlink to include/ was missing.
9402 [Ralf S. Engelschall]
9404 *) Incorporated the popular no-RSA/DSA-only patches
9405 which allow to compile a RSA-free SSLeay.
9406 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9408 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9409 when "ssleay" is still not found.
9410 [Ralf S. Engelschall]
9412 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9413 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9415 *) Updated the README file.
9416 [Ralf S. Engelschall]
9418 *) Added various .cvsignore files in the CVS repository subdirs
9419 to make a "cvs update" really silent.
9420 [Ralf S. Engelschall]
9422 *) Recompiled the error-definition header files and added
9423 missing symbols to the Win32 linker tables.
9424 [Ralf S. Engelschall]
9426 *) Cleaned up the top-level documents;
9427 o new files: CHANGES and LICENSE
9428 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9429 o merged COPYRIGHT into LICENSE
9430 o removed obsolete TODO file
9431 o renamed MICROSOFT to INSTALL.W32
9432 [Ralf S. Engelschall]
9434 *) Removed dummy files from the 0.9.1b source tree:
9435 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9436 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9437 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9438 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9439 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9440 [Ralf S. Engelschall]
9442 *) Added various platform portability fixes.
9445 *) The Genesis of the OpenSSL rpject:
9446 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9447 Young and Tim J. Hudson created while they were working for C2Net until
9449 [The OpenSSL Project]
9452 Changes between 0.9.0b and 0.9.1b [not released]
9454 *) Updated a few CA certificates under certs/
9457 *) Changed some BIGNUM api stuff.
9460 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9461 DGUX x86, Linux Alpha, etc.
9464 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9465 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9469 *) Add -strparse option to asn1pars program which parses nested
9471 [Dr Stephen Henson <shenson@bigfoot.com>]
9473 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9476 *) DSA fix for "ca" program.
9479 *) Added "-genkey" option to "dsaparam" program.
9482 *) Added RIPE MD160 (rmd160) message digest.
9485 *) Added -a (all) option to "ssleay version" command.
9488 *) Added PLATFORM define which is the id given to Configure.
9491 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9494 *) Extended the ASN.1 parser routines.
9497 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9500 *) Added a BN_CTX to the BN library.
9503 *) Fixed the weak key values in DES library
9506 *) Changed API in EVP library for cipher aliases.
9509 *) Added support for RC2/64bit cipher.
9512 *) Converted the lhash library to the crypto/mem.c functions.
9515 *) Added more recognized ASN.1 object ids.
9518 *) Added more RSA padding checks for SSL/TLS.
9521 *) Added BIO proxy/filter functionality.
9524 *) Added extra_certs to SSL_CTX which can be used
9525 send extra CA certificates to the client in the CA cert chain sending
9526 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9529 *) Now Fortezza is denied in the authentication phase because
9530 this is key exchange mechanism is not supported by SSLeay at all.
9533 *) Additional PKCS1 checks.
9536 *) Support the string "TLSv1" for all TLS v1 ciphers.
9539 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9540 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9543 *) Fixed a few memory leaks.
9546 *) Fixed various code and comment typos.
9549 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9550 bytes sent in the client random.
9551 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob