5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) If a candidate issuer certificate is already part of the constructed
8 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
11 *) Improve forward-security support: add functions
13 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
14 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
16 for use by SSL/TLS servers; the callback function will be called whenever a
17 new session is created, and gets to decide whether the session may be
18 cached to make it resumable (return 0) or not (return 1). (As by the
19 SSL/TLS protocol specifications, the session_id sent by the server will be
20 empty to indicate that the session is not resumable; also, the server will
21 not generate RFC 4507 (RFC 5077) session tickets.)
23 A simple reasonable callback implementation is to return is_forward_secure.
24 This parameter will be set to 1 or 0 depending on the ciphersuite selected
25 by the SSL/TLS server library, indicating whether it can provide forward
27 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
29 *) Add Next Protocol Negotiation,
30 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
31 disabled with a no-npn flag to config or Configure. Code donated
33 [Adam Langley <agl@google.com> and Ben Laurie]
35 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
36 all platforms. Move ssize_t definition from e_os.h to the public
37 header file e_os2.h as it now appears in public header file cms.h
40 *) New function OPENSSL_gmtime_diff to find the difference in days
41 and seconds between two tm structures. This will be used to provide
42 additional functionality for ASN1_TIME.
45 *) New -sigopt option to the ca, req and x509 utilities. Additional
46 signature parameters can be passed using this option and in
50 *) Add RSA PSS signing function. This will generate and set the
51 appropriate AlgorithmIdentifiers for PSS based on those in the
52 corresponding EVP_MD_CTX structure. No application support yet.
55 *) Support for companion algorithm specific ASN1 signing routines.
56 New function ASN1_item_sign_ctx() signs a pre-initialised
57 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
58 the appropriate parameters.
61 *) Add new algorithm specific ASN1 verification initialisation function
62 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
63 handling will be the same no matter what EVP_PKEY_METHOD is used.
64 Add a PSS handler to support verification of PSS signatures: checked
65 against a number of sample certificates.
68 *) Add signature printing for PSS. Add PSS OIDs.
69 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
71 *) Add algorithm specific signature printing. An individual ASN1 method
72 can now print out signatures instead of the standard hex dump.
74 More complex signatures (e.g. PSS) can print out more meaningful
75 information. Include DSA version that prints out the signature
79 *) Add -trusted_first option which attempts to find certificates in the
80 trusted store even if an untrusted chain is also supplied.
83 *) Initial experimental support for explicitly trusted non-root CAs.
84 OpenSSL still tries to build a complete chain to a root but if an
85 intermediate CA has a trust setting included that is used. The first
86 setting is used: whether to trust or reject.
89 *) New -verify_name option in command line utilities to set verification
93 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
94 Add CMAC pkey methods.
97 *) Experiemental regnegotiation in s_server -www mode. If the client
98 browses /reneg connection is renegotiated. If /renegcert it is
99 renegotiated requesting a certificate.
102 *) Add an "external" session cache for debugging purposes to s_server. This
103 should help trace issues which normally are only apparent in deployed
104 multi-process servers.
107 *) Experiemental password based recipient info support for CMS library:
108 implementing RFC3211.
111 *) Split password based encryption into PBES2 and PBKDF2 functions. This
112 neatly separates the code into cipher and PBE sections and is required
113 for some algorithms that split PBES2 into separate pieces (such as
117 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
118 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
119 BIO_set_cipher() and some obscure PEM functions were changed so they
120 can now return an error. The RAND changes required a change to the
121 RAND_METHOD structure.
124 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
125 a gcc attribute to warn if the result of a function is ignored. This
126 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
127 whose return value is often ignored.
130 Changes between 1.0.0c and 1.0.1 [xx XXX xxxx]
132 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
135 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
136 elliptic curve NIST-P224 with constant-time single point multiplication on
137 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
138 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
139 flexible implementations).
141 The implementation requires support for the nonstandard type __uint128_t,
142 and so is disabled by default. To include this in your build of OpenSSL,
143 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
144 and run "make depend" (or "make update").
145 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
147 *) Permit abbreviated handshakes when renegotiating using the function
148 SSL_renegotiate_abbreviated().
149 [Robin Seggelmann <seggelmann@fh-muenster.de>]
151 *) Add call to ENGINE_register_all_complete() to
152 ENGINE_load_builtin_engines(), so some implementations get used
153 automatically instead of needing explicit application support.
156 *) Add support for TLS key exporter as described in RFC5705.
157 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
159 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
160 a few changes are required:
162 Add SSL_OP_NO_TLSv1_1 flag.
164 Update version checking logic to handle version 1.1.
165 Add explicit IV handling (ported from DTLS code).
166 Add command line options to s_client/s_server.
169 Changes between 1.0.0c and 1.0.0d [xx XXX xxxx]
171 *) Fix bug in string printing code: if *any* escaping is enabled we must
172 escape the escape character (backslash) or the resulting string is
176 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
178 *) Disable code workaround for ancient and obsolete Netscape browsers
179 and servers: an attacker can use it in a ciphersuite downgrade attack.
180 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
183 *) Fixed J-PAKE implementation error, originally discovered by
184 Sebastien Martini, further info and confirmation from Stefan
185 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
188 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
190 *) Fix extension code to avoid race conditions which can result in a buffer
191 overrun vulnerability: resumed sessions must not be modified as they can
192 be shared by multiple threads. CVE-2010-3864
195 *) Fix WIN32 build system to correctly link an ENGINE directory into
199 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
201 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
203 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
205 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
207 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
208 context. The operation can be customised via the ctrl mechanism in
209 case ENGINEs want to include additional functionality.
212 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
215 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
216 output hashes compatible with older versions of OpenSSL.
217 [Willy Weisz <weisz@vcpc.univie.ac.at>]
219 *) Fix compression algorithm handling: if resuming a session use the
220 compression algorithm of the resumed session instead of determining
221 it from client hello again. Don't allow server to change algorithm.
224 *) Add load_crls() function to apps tidying load_certs() too. Add option
225 to verify utility to allow additional CRLs to be included.
228 *) Update OCSP request code to permit adding custom headers to the request:
229 some responders need this.
232 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
234 [Julia Lawall <julia@diku.dk>]
236 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
237 needlessly dereferenced structures, used obsolete functions and
238 didn't handle all updated verify codes correctly.
241 *) Disable MD2 in the default configuration.
244 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
245 indicate the initial BIO being pushed or popped. This makes it possible
246 to determine whether the BIO is the one explicitly called or as a result
247 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
248 it handles reference counts correctly and doesn't zero out the I/O bio
249 when it is not being explicitly popped. WARNING: applications which
250 included workarounds for the old buggy behaviour will need to be modified
251 or they could free up already freed BIOs.
254 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
255 renaming to all platforms (within the 0.9.8 branch, this was
256 done conditionally on Netware platforms to avoid a name clash).
257 [Guenter <lists@gknw.net>]
259 *) Add ECDHE and PSK support to DTLS.
260 [Michael Tuexen <tuexen@fh-muenster.de>]
262 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
266 *) Add "missing" function EVP_MD_flags() (without this the only way to
267 retrieve a digest flags is by accessing the structure directly. Update
268 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
269 or cipher is registered as in the "from" argument. Print out all
270 registered digests in the dgst usage message instead of manually
271 attempting to work them out.
274 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
275 this allows the use of compression and extensions. Change default cipher
276 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
277 by default unless an application cipher string requests it.
280 *) Alter match criteria in PKCS12_parse(). It used to try to use local
281 key ids to find matching certificates and keys but some PKCS#12 files
282 don't follow the (somewhat unwritten) rules and this strategy fails.
283 Now just gather all certificates together and the first private key
284 then look for the first certificate that matches the key.
287 *) Support use of registered digest and cipher names for dgst and cipher
288 commands instead of having to add each one as a special case. So now
295 openssl dgst -sha256 foo
297 and this works for ENGINE based algorithms too.
301 *) Update Gost ENGINE to support parameter files.
302 [Victor B. Wagner <vitus@cryptocom.ru>]
304 *) Support GeneralizedTime in ca utility.
305 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
307 *) Enhance the hash format used for certificate directory links. The new
308 form uses the canonical encoding (meaning equivalent names will work
309 even if they aren't identical) and uses SHA1 instead of MD5. This form
310 is incompatible with the older format and as a result c_rehash should
311 be used to rebuild symbolic links.
314 *) Make PKCS#8 the default write format for private keys, replacing the
315 traditional format. This form is standardised, more secure and doesn't
316 include an implicit MD5 dependency.
319 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
320 committed to OpenSSL should pass this lot as a minimum.
323 *) Add session ticket override functionality for use by EAP-FAST.
324 [Jouni Malinen <j@w1.fi>]
326 *) Modify HMAC functions to return a value. Since these can be implemented
327 in an ENGINE errors can occur.
330 *) Type-checked OBJ_bsearch_ex.
333 *) Type-checked OBJ_bsearch. Also some constification necessitated
334 by type-checking. Still to come: TXT_DB, bsearch(?),
335 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
339 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
340 seconds to a tm structure directly, instead of going through OS
341 specific date routines. This avoids any issues with OS routines such
342 as the year 2038 bug. New *_adj() functions for ASN1 time structures
343 and X509_time_adj_ex() to cover the extended range. The existing
344 X509_time_adj() is still usable and will no longer have any date issues.
347 *) Delta CRL support. New use deltas option which will attempt to locate
348 and search any appropriate delta CRLs available.
350 This work was sponsored by Google.
353 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
354 code and add additional score elements. Validate alternate CRL paths
355 as part of the CRL checking and indicate a new error "CRL path validation
356 error" in this case. Applications wanting additional details can use
357 the verify callback and check the new "parent" field. If this is not
358 NULL CRL path validation is taking place. Existing applications wont
359 see this because it requires extended CRL support which is off by
362 This work was sponsored by Google.
365 *) Support for freshest CRL extension.
367 This work was sponsored by Google.
370 *) Initial indirect CRL support. Currently only supported in the CRLs
371 passed directly and not via lookup. Process certificate issuer
372 CRL entry extension and lookup CRL entries by bother issuer name
373 and serial number. Check and process CRL issuer entry in IDP extension.
375 This work was sponsored by Google.
378 *) Add support for distinct certificate and CRL paths. The CRL issuer
379 certificate is validated separately in this case. Only enabled if
380 an extended CRL support flag is set: this flag will enable additional
381 CRL functionality in future.
383 This work was sponsored by Google.
386 *) Add support for policy mappings extension.
388 This work was sponsored by Google.
391 *) Fixes to pathlength constraint, self issued certificate handling,
392 policy processing to align with RFC3280 and PKITS tests.
394 This work was sponsored by Google.
397 *) Support for name constraints certificate extension. DN, email, DNS
398 and URI types are currently supported.
400 This work was sponsored by Google.
403 *) To cater for systems that provide a pointer-based thread ID rather
404 than numeric, deprecate the current numeric thread ID mechanism and
405 replace it with a structure and associated callback type. This
406 mechanism allows a numeric "hash" to be extracted from a thread ID in
407 either case, and on platforms where pointers are larger than 'long',
408 mixing is done to help ensure the numeric 'hash' is usable even if it
409 can't be guaranteed unique. The default mechanism is to use "&errno"
410 as a pointer-based thread ID to distinguish between threads.
412 Applications that want to provide their own thread IDs should now use
413 CRYPTO_THREADID_set_callback() to register a callback that will call
414 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
416 Note that ERR_remove_state() is now deprecated, because it is tied
417 to the assumption that thread IDs are numeric. ERR_remove_state(0)
418 to free the current thread's error state should be replaced by
419 ERR_remove_thread_state(NULL).
421 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
422 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
423 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
424 application was previously providing a numeric thread callback that
425 was inappropriate for distinguishing threads, then uniqueness might
426 have been obtained with &errno that happened immediately in the
427 intermediate development versions of OpenSSL; this is no longer the
428 case, the numeric thread callback will now override the automatic use
430 [Geoff Thorpe, with help from Bodo Moeller]
432 *) Initial support for different CRL issuing certificates. This covers a
433 simple case where the self issued certificates in the chain exist and
434 the real CRL issuer is higher in the existing chain.
436 This work was sponsored by Google.
439 *) Removed effectively defunct crypto/store from the build.
442 *) Revamp of STACK to provide stronger type-checking. Still to come:
443 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
444 ASN1_STRING, CONF_VALUE.
447 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
448 RAM on SSL connections. This option can save about 34k per idle SSL.
451 *) Revamp of LHASH to provide stronger type-checking. Still to come:
452 STACK, TXT_DB, bsearch, qsort.
455 *) Initial support for Cryptographic Message Syntax (aka CMS) based
456 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
457 support for data, signedData, compressedData, digestedData and
458 encryptedData, envelopedData types included. Scripts to check against
459 RFC4134 examples draft and interop and consistency checks of many
460 content types and variants.
463 *) Add options to enc utility to support use of zlib compression BIO.
466 *) Extend mk1mf to support importing of options and assembly language
467 files from Configure script, currently only included in VC-WIN32.
468 The assembly language rules can now optionally generate the source
469 files from the associated perl scripts.
472 *) Implement remaining functionality needed to support GOST ciphersuites.
473 Interop testing has been performed using CryptoPro implementations.
474 [Victor B. Wagner <vitus@cryptocom.ru>]
476 *) s390x assembler pack.
479 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
483 *) Implement Opaque PRF Input TLS extension as specified in
484 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
485 official specification yet and no extension type assignment by
486 IANA exists, this extension (for now) will have to be explicitly
487 enabled when building OpenSSL by providing the extension number
488 to use. For example, specify an option
490 -DTLSEXT_TYPE_opaque_prf_input=0x9527
492 to the "config" or "Configure" script to enable the extension,
493 assuming extension number 0x9527 (which is a completely arbitrary
494 and unofficial assignment based on the MD5 hash of the Internet
495 Draft). Note that by doing so, you potentially lose
496 interoperability with other TLS implementations since these might
497 be using the same extension number for other purposes.
499 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
500 opaque PRF input value to use in the handshake. This will create
501 an interal copy of the length-'len' string at 'src', and will
502 return non-zero for success.
504 To get more control and flexibility, provide a callback function
507 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
508 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
512 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
515 Callback function 'cb' will be called in handshakes, and is
516 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
517 Argument 'arg' is for application purposes (the value as given to
518 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
519 be provided to the callback function). The callback function
520 has to return non-zero to report success: usually 1 to use opaque
521 PRF input just if possible, or 2 to enforce use of the opaque PRF
522 input. In the latter case, the library will abort the handshake
523 if opaque PRF input is not successfully negotiated.
525 Arguments 'peerinput' and 'len' given to the callback function
526 will always be NULL and 0 in the case of a client. A server will
527 see the client's opaque PRF input through these variables if
528 available (NULL and 0 otherwise). Note that if the server
529 provides an opaque PRF input, the length must be the same as the
530 length of the client's opaque PRF input.
532 Note that the callback function will only be called when creating
533 a new session (session resumption can resume whatever was
534 previously negotiated), and will not be called in SSL 2.0
535 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
536 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
537 for applications that need to enforce opaque PRF input.
541 *) Update ssl code to support digests other than SHA1+MD5 for handshake
544 [Victor B. Wagner <vitus@cryptocom.ru>]
546 *) Add RFC4507 support to OpenSSL. This includes the corrections in
547 RFC4507bis. The encrypted ticket format is an encrypted encoded
548 SSL_SESSION structure, that way new session features are automatically
551 If a client application caches session in an SSL_SESSION structure
552 support is transparent because tickets are now stored in the encoded
555 The SSL_CTX structure automatically generates keys for ticket
556 protection in servers so again support should be possible
557 with no application modification.
559 If a client or server wishes to disable RFC4507 support then the option
560 SSL_OP_NO_TICKET can be set.
562 Add a TLS extension debugging callback to allow the contents of any client
563 or server extensions to be examined.
565 This work was sponsored by Google.
568 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
569 OpenSSL should now compile cleanly on gcc 4.2
570 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
572 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
573 support including streaming MAC support: this is required for GOST
575 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
577 *) Add option -stream to use PKCS#7 streaming in smime utility. New
578 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
579 to output in BER and PEM format.
582 *) Experimental support for use of HMAC via EVP_PKEY interface. This
583 allows HMAC to be handled via the EVP_DigestSign*() interface. The
584 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
585 ENGINE support for HMAC keys which are unextractable. New -mac and
586 -macopt options to dgst utility.
589 *) New option -sigopt to dgst utility. Update dgst to use
590 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
591 alternative signing paramaters such as X9.31 or PSS in the dgst
595 *) Change ssl_cipher_apply_rule(), the internal function that does
596 the work each time a ciphersuite string requests enabling
597 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
598 removing ("!foo+bar") a class of ciphersuites: Now it maintains
599 the order of disabled ciphersuites such that those ciphersuites
600 that most recently went from enabled to disabled not only stay
601 in order with respect to each other, but also have higher priority
602 than other disabled ciphersuites the next time ciphersuites are
605 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
606 the same ciphersuites as with "HIGH" alone, but in a specific
607 order where the PSK ciphersuites come first (since they are the
608 most recently disabled ciphersuites when "HIGH" is parsed).
610 Also, change ssl_create_cipher_list() (using this new
611 funcionality) such that between otherwise identical
612 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
616 *) Change ssl_create_cipher_list() so that it automatically
617 arranges the ciphersuites in reasonable order before starting
618 to process the rule string. Thus, the definition for "DEFAULT"
619 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
620 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
621 This makes it much easier to arrive at a reasonable default order
622 in applications for which anonymous ciphers are OK (meaning
623 that you can't actually use DEFAULT).
624 [Bodo Moeller; suggested by Victor Duchovni]
626 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
627 processing) into multiple integers instead of setting
628 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
629 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
630 (These masks as well as the individual bit definitions are hidden
631 away into the non-exported interface ssl/ssl_locl.h, so this
632 change to the definition of the SSL_CIPHER structure shouldn't
633 affect applications.) This give us more bits for each of these
634 categories, so there is no longer a need to coagulate AES128 and
635 AES256 into a single algorithm bit, and to coagulate Camellia128
636 and Camellia256 into a single algorithm bit, which has led to all
639 Thus, among other things, the kludge introduced in 0.9.7m and
640 0.9.8e for masking out AES256 independently of AES128 or masking
641 out Camellia256 independently of AES256 is not needed here in 0.9.9.
643 With the change, we also introduce new ciphersuite aliases that
644 so far were missing: "AES128", "AES256", "CAMELLIA128", and
648 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
649 Use the leftmost N bytes of the signature input if the input is
650 larger than the prime q (with N being the size in bytes of q).
653 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
654 it yet and it is largely untested.
657 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
660 *) Initial incomplete changes to avoid need for function casts in OpenSSL
661 some compilers (gcc 4.2 and later) reject their use. Safestack is
662 reimplemented. Update ASN1 to avoid use of legacy functions.
665 *) Win32/64 targets are linked with Winsock2.
668 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
669 to external functions. This can be used to increase CRL handling
670 efficiency especially when CRLs are very large by (for example) storing
671 the CRL revoked certificates in a database.
674 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
675 new CRLs added to a directory can be used. New command line option
676 -verify_return_error to s_client and s_server. This causes real errors
677 to be returned by the verify callback instead of carrying on no matter
678 what. This reflects the way a "real world" verify callback would behave.
681 *) GOST engine, supporting several GOST algorithms and public key formats.
682 Kindly donated by Cryptocom.
685 *) Partial support for Issuing Distribution Point CRL extension. CRLs
686 partitioned by DP are handled but no indirect CRL or reason partitioning
687 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
688 selected via a scoring technique which handles IDP and AKID in CRLs.
691 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
692 will ultimately be used for all verify operations: this will remove the
693 X509_STORE dependency on certificate verification and allow alternative
694 lookup methods. X509_STORE based implementations of these two callbacks.
697 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
698 Modify get_crl() to find a valid (unexpired) CRL if possible.
701 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
702 this would be called X509_CRL_cmp() but that name is already used by
703 a function that just compares CRL issuer names. Cache several CRL
704 extensions in X509_CRL structure and cache CRLDP in X509.
707 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
708 this maps equivalent X509_NAME structures into a consistent structure.
709 Name comparison can then be performed rapidly using memcmp().
712 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
716 *) Allow digests to supply their own micalg string for S/MIME type using
717 the ctrl EVP_MD_CTRL_MICALG.
720 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
721 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
722 ctrl. It can then customise the structure before and/or after signing
726 *) New function OBJ_add_sigid() to allow application defined signature OIDs
727 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
728 to free up any added signature OIDs.
731 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
732 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
733 digest and cipher tables. New options added to openssl utility:
734 list-message-digest-algorithms and list-cipher-algorithms.
737 *) Change the array representation of binary polynomials: the list
738 of degrees of non-zero coefficients is now terminated with -1.
739 Previously it was terminated with 0, which was also part of the
740 value; thus, the array representation was not applicable to
741 polynomials where t^0 has coefficient zero. This change makes
742 the array representation useful in a more general context.
745 *) Various modifications and fixes to SSL/TLS cipher string
746 handling. For ECC, the code now distinguishes between fixed ECDH
747 with RSA certificates on the one hand and with ECDSA certificates
748 on the other hand, since these are separate ciphersuites. The
749 unused code for Fortezza ciphersuites has been removed.
751 For consistency with EDH, ephemeral ECDH is now called "EECDH"
752 (not "ECDHE"). For consistency with the code for DH
753 certificates, use of ECDH certificates is now considered ECDH
754 authentication, not RSA or ECDSA authentication (the latter is
755 merely the CA's signing algorithm and not actively used in the
758 The temporary ciphersuite alias "ECCdraft" is no longer
759 available, and ECC ciphersuites are no longer excluded from "ALL"
760 and "DEFAULT". The following aliases now exist for RFC 4492
761 ciphersuites, most of these by analogy with the DH case:
763 kECDHr - ECDH cert, signed with RSA
764 kECDHe - ECDH cert, signed with ECDSA
765 kECDH - ECDH cert (signed with either RSA or ECDSA)
766 kEECDH - ephemeral ECDH
767 ECDH - ECDH cert or ephemeral ECDH
773 AECDH - anonymous ECDH
774 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
778 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
779 Use correct micalg parameters depending on digest(s) in signed message.
782 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
783 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
786 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
787 an engine to register a method. Add ENGINE lookups for methods and
788 functional reference processing.
791 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
792 EVP_{Sign,Verify}* which allow an application to customise the signature
796 *) New -resign option to smime utility. This adds one or more signers
797 to an existing PKCS#7 signedData structure. Also -md option to use an
798 alternative message digest algorithm for signing.
801 *) Tidy up PKCS#7 routines and add new functions to make it easier to
802 create PKCS7 structures containing multiple signers. Update smime
803 application to support multiple signers.
806 *) New -macalg option to pkcs12 utility to allow setting of an alternative
810 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
811 Reorganize PBE internals to lookup from a static table using NIDs,
812 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
813 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
814 PRF which will be automatically used with PBES2.
817 *) Replace the algorithm specific calls to generate keys in "req" with the
821 *) Update PKCS#7 enveloped data routines to use new API. This is now
822 supported by any public key method supporting the encrypt operation. A
823 ctrl is added to allow the public key algorithm to examine or modify
824 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
828 *) Add a ctrl to asn1 method to allow a public key algorithm to express
829 a default digest type to use. In most cases this will be SHA1 but some
830 algorithms (such as GOST) need to specify an alternative digest. The
831 return value indicates how strong the prefernce is 1 means optional and
832 2 is mandatory (that is it is the only supported type). Modify
833 ASN1_item_sign() to accept a NULL digest argument to indicate it should
834 use the default md. Update openssl utilities to use the default digest
835 type for signing if it is not explicitly indicated.
838 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
839 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
840 signing method from the key type. This effectively removes the link
841 between digests and public key types.
844 *) Add an OID cross reference table and utility functions. Its purpose is to
845 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
846 rsaEncryption. This will allow some of the algorithm specific hackery
847 needed to use the correct OID to be removed.
850 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
851 structures for PKCS7_sign(). They are now set up by the relevant public
855 *) Add provisional EC pkey method with support for ECDSA and ECDH.
858 *) Add support for key derivation (agreement) in the API, DH method and
862 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
863 public and private key formats. As a side effect these add additional
864 command line functionality not previously available: DSA signatures can be
865 generated and verified using pkeyutl and DH key support and generation in
870 [Oliver Tappe <zooey@hirschkaefer.de>]
872 *) New make target "install_html_docs" installs HTML renditions of the
874 [Oliver Tappe <zooey@hirschkaefer.de>]
876 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
877 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
878 support key and parameter generation and add initial key generation
879 functionality for RSA.
882 *) Add functions for main EVP_PKEY_method operations. The undocumented
883 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
884 EVP_PKEY_{encrypt,decrypt}_old.
887 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
888 key API, doesn't do much yet.
891 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
892 public key algorithms. New option to openssl utility:
893 "list-public-key-algorithms" to print out info.
896 *) Implement the Supported Elliptic Curves Extension for
897 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
900 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
901 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
904 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
905 utilities such as rsa, dsa, dsaparam etc except they process any key
909 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
910 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
911 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
915 *) Initial support for pluggable public key ASN1.
916 De-spaghettify the public key ASN1 handling. Move public and private
917 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
918 algorithm specific handling to a single module within the relevant
919 algorithm directory. Add functions to allow (near) opaque processing
920 of public and private key structures.
923 *) Implement the Supported Point Formats Extension for
924 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
927 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
928 for the psk identity [hint] and the psk callback functions to the
929 SSL_SESSION, SSL and SSL_CTX structure.
932 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
936 SSL_CTX_use_psk_identity_hint
937 SSL_get_psk_identity_hint
939 SSL_use_psk_identity_hint
941 [Mika Kousa and Pasi Eronen of Nokia Corporation]
943 *) Add RFC 3161 compliant time stamp request creation, response generation
944 and response verification functionality.
945 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
947 *) Add initial support for TLS extensions, specifically for the server_name
948 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
949 have new members for a host name. The SSL data structure has an
950 additional member SSL_CTX *initial_ctx so that new sessions can be
951 stored in that context to allow for session resumption, even after the
952 SSL has been switched to a new SSL_CTX in reaction to a client's
953 server_name extension.
955 New functions (subject to change):
958 SSL_get_servername_type()
961 New CTRL codes and macros (subject to change):
963 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
964 - SSL_CTX_set_tlsext_servername_callback()
965 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
966 - SSL_CTX_set_tlsext_servername_arg()
967 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
969 openssl s_client has a new '-servername ...' option.
971 openssl s_server has new options '-servername_host ...', '-cert2 ...',
972 '-key2 ...', '-servername_fatal' (subject to change). This allows
973 testing the HostName extension for a specific single host name ('-cert'
974 and '-key' remain fallbacks for handshakes without HostName
975 negotiation). If the unrecogninzed_name alert has to be sent, this by
976 default is a warning; it becomes fatal with the '-servername_fatal'
979 [Peter Sylvester, Remy Allais, Christophe Renou]
981 *) Whirlpool hash implementation is added.
984 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
985 bn(64,32). Because of instruction set limitations it doesn't have
986 any negative impact on performance. This was done mostly in order
987 to make it possible to share assembler modules, such as bn_mul_mont
988 implementations, between 32- and 64-bit builds without hassle.
991 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
992 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
996 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
997 dedicated Montgomery multiplication procedure, is introduced.
998 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
999 "64-bit" performance on certain 32-bit targets.
1002 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1003 in SSL structures. New SSL ctrl to set maximum send fragment size.
1004 Save memory by seeting the I/O buffer sizes dynamically instead of
1005 using the maximum available value.
1008 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1009 in addition to the text details.
1012 *) Very, very preliminary EXPERIMENTAL support for printing of general
1013 ASN1 structures. This currently produces rather ugly output and doesn't
1014 handle several customised structures at all.
1017 *) Integrated support for PVK file format and some related formats such
1018 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1019 these in the 'rsa' and 'dsa' utilities.
1022 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1025 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1026 place for the (very old) "NETSCAPE" format certificates which are now
1027 handled using new ASN1 code equivalents.
1030 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1031 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1032 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1035 *) Modify CRL distribution points extension code to print out previously
1036 unsupported fields. Enhance extension setting code to allow setting of
1040 *) Add print and set support for Issuing Distribution Point CRL extension.
1043 *) Change 'Configure' script to enable Camellia by default.
1046 Changes between 0.9.8o and 0.9.8p [xx XXX xxxx]
1048 *) Fix extension code to avoid race conditions which can result in a buffer
1049 overrun vulnerability: resumed sessions must not be modified as they can
1050 be shared by multiple threads. CVE-2010-3864
1052 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1055 *) Don't reencode certificate when calculating signature: cache and use
1056 the original encoding instead. This makes signature verification of
1057 some broken encodings work correctly.
1060 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1061 is also one of the inputs.
1062 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1064 *) Don't repeatedly append PBE algorithms to table if they already exist.
1065 Sort table on each new add. This effectively makes the table read only
1066 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1070 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1072 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1075 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1076 access or freeing data twice (CVE-2010-0742)
1077 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1079 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1080 common in certificates and some applications which only call
1081 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1085 Reduce copying into .apps and .test in makevms.com
1086 Don't try to use blank CA certificate in CA.com
1087 Allow use of C files from original directories in maketests.com
1088 [Steven M. Schweda" <sms@antinode.info>]
1090 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1092 *) When rejecting SSL/TLS records due to an incorrect version number, never
1093 update s->server with a new major version number. As of
1094 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1095 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1096 the previous behavior could result in a read attempt at NULL when
1097 receiving specific incorrect SSL/TLS records once record payload
1098 protection is active. (CVE-2010-0740)
1099 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1101 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1102 could be crashed if the relevant tables were not present (e.g. chrooted).
1103 [Tomas Hoger <thoger@redhat.com>]
1105 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1107 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1108 [Martin Olsson, Neel Mehta]
1110 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1111 accommodate for stack sorting, always a write lock!).
1114 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1115 excessive delays in the RAND_poll(): over a minute. As a workaround
1116 include a time check in the inner Heap32Next loop too.
1119 *) The code that handled flushing of data in SSL/TLS originally used the
1120 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1121 the problem outlined in PR#1949. The fix suggested there however can
1122 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1123 of Apache). So instead simplify the code to flush unconditionally.
1124 This should be fine since flushing with no data to flush is a no op.
1127 *) Handle TLS versions 2.0 and later properly and correctly use the
1128 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1129 off ancient servers have a habit of sticking around for a while...
1132 *) Modify compression code so it frees up structures without using the
1133 ex_data callbacks. This works around a problem where some applications
1134 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1135 restarting) then use compression (e.g. SSL with compression) later.
1136 This results in significant per-connection memory leaks and
1137 has caused some security issues including CVE-2008-1678 and
1141 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1142 change when encrypting or decrypting.
1145 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1146 connect and renegotiate with servers which do not support RI.
1147 Until RI is more widely deployed this option is enabled by default.
1150 *) Add "missing" ssl ctrls to clear options and mode.
1153 *) If client attempts to renegotiate and doesn't support RI respond with
1154 a no_renegotiation alert as required by RFC5746. Some renegotiating
1155 TLS clients will continue a connection gracefully when they receive
1156 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1157 waiting for a server hello which it will never receive. Now we treat a
1158 received no_renegotiation alert as a fatal error. This is because
1159 applications requesting a renegotiation might well expect it to succeed
1160 and would have no code in place to handle the server denying it so the
1161 only safe thing to do is to terminate the connection.
1164 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1165 peer supports secure renegotiation and 0 otherwise. Print out peer
1166 renegotiation support in s_client/s_server.
1169 *) Replace the highly broken and deprecated SPKAC certification method with
1170 the updated NID creation version. This should correctly handle UTF8.
1173 *) Implement RFC5746. Re-enable renegotiation but require the extension
1174 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1175 turns out to be a bad idea. It has been replaced by
1176 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1177 SSL_CTX_set_options(). This is really not recommended unless you
1178 know what you are doing.
1179 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1181 *) Fixes to stateless session resumption handling. Use initial_ctx when
1182 issuing and attempting to decrypt tickets in case it has changed during
1183 servername handling. Use a non-zero length session ID when attempting
1184 stateless session resumption: this makes it possible to determine if
1185 a resumption has occurred immediately after receiving server hello
1186 (several places in OpenSSL subtly assume this) instead of later in
1190 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1191 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1192 fixes for a few places where the return code is not checked
1194 [Julia Lawall <julia@diku.dk>]
1196 *) Add --strict-warnings option to Configure script to include devteam
1197 warnings in other configurations.
1200 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1201 makes it possible to install openssl libraries in locations which
1202 have names other than "lib", for example "/usr/lib64" which some
1204 [Steve Henson, based on patch from Jeremy Utley]
1206 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1207 X690 8.9.12 and can produce some misleading textual output of OIDs.
1208 [Steve Henson, reported by Dan Kaminsky]
1210 *) Delete MD2 from algorithm tables. This follows the recommendation in
1211 several standards that it is not used in new applications due to
1212 several cryptographic weaknesses. For binary compatibility reasons
1213 the MD2 API is still compiled in by default.
1216 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1220 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1221 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1223 [Guenter <lists@gknw.net>]
1225 *) Fix the server certificate chain building code to use X509_verify_cert(),
1226 it used to have an ad-hoc builder which was unable to cope with anything
1227 other than a simple chain.
1228 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1230 *) Don't check self signed certificate signatures in X509_verify_cert()
1231 by default (a flag can override this): it just wastes time without
1232 adding any security. As a useful side effect self signed root CAs
1233 with non-FIPS digests are now usable in FIPS mode.
1236 *) In dtls1_process_out_of_seq_message() the check if the current message
1237 is already buffered was missing. For every new message was memory
1238 allocated, allowing an attacker to perform an denial of service attack
1239 with sending out of seq handshake messages until there is no memory
1240 left. Additionally every future messege was buffered, even if the
1241 sequence number made no sense and would be part of another handshake.
1242 So only messages with sequence numbers less than 10 in advance will be
1243 buffered. (CVE-2009-1378)
1244 [Robin Seggelmann, discovered by Daniel Mentz]
1246 *) Records are buffered if they arrive with a future epoch to be
1247 processed after finishing the corresponding handshake. There is
1248 currently no limitation to this buffer allowing an attacker to perform
1249 a DOS attack with sending records with future epochs until there is no
1250 memory left. This patch adds the pqueue_size() function to detemine
1251 the size of a buffer and limits the record buffer to 100 entries.
1253 [Robin Seggelmann, discovered by Daniel Mentz]
1255 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1256 parent structure is freed. (CVE-2009-1379)
1259 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1260 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1263 [Ilya O. <vrghost@gmail.com>]
1265 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1267 *) Disable renegotiation completely - this fixes a severe security
1268 problem (CVE-2009-3555) at the cost of breaking all
1269 renegotiation. Renegotiation can be re-enabled by setting
1270 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1271 run-time. This is really not recommended unless you know what
1275 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1277 *) Don't set val to NULL when freeing up structures, it is freed up by
1278 underlying code. If sizeof(void *) > sizeof(long) this can result in
1279 zeroing past the valid field. (CVE-2009-0789)
1280 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1282 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1283 checked correctly. This would allow some invalid signed attributes to
1284 appear to verify correctly. (CVE-2009-0591)
1285 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1287 *) Reject UniversalString and BMPString types with invalid lengths. This
1288 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1289 a legal length. (CVE-2009-0590)
1292 *) Set S/MIME signing as the default purpose rather than setting it
1293 unconditionally. This allows applications to override it at the store
1297 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1298 to handle some structures.
1301 *) Improve efficiency of mem_gets: don't search whole buffer each time
1303 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1305 *) New -hex option for openssl rand.
1308 *) Print out UTF8String and NumericString when parsing ASN1.
1311 *) Support NumericString type for name components.
1314 *) Allow CC in the environment to override the automatically chosen
1315 compiler. Note that nothing is done to ensure flags work with the
1319 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1321 *) Properly check EVP_VerifyFinal() and similar return values
1323 [Ben Laurie, Bodo Moeller, Google Security Team]
1325 *) Enable TLS extensions by default.
1328 *) Allow the CHIL engine to be loaded, whether the application is
1329 multithreaded or not. (This does not release the developer from the
1330 obligation to set up the dynamic locking callbacks.)
1331 [Sander Temme <sander@temme.net>]
1333 *) Use correct exit code if there is an error in dgst command.
1334 [Steve Henson; problem pointed out by Roland Dirlewanger]
1336 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1337 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1340 *) Add experimental JPAKE support, including demo authentication in
1341 s_client and s_server.
1344 *) Set the comparison function in v3_addr_canonize().
1345 [Rob Austein <sra@hactrn.net>]
1347 *) Add support for XMPP STARTTLS in s_client.
1348 [Philip Paeps <philip@freebsd.org>]
1350 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1351 to ensure that even with this option, only ciphersuites in the
1352 server's preference list will be accepted. (Note that the option
1353 applies only when resuming a session, so the earlier behavior was
1354 just about the algorithm choice for symmetric cryptography.)
1357 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1359 *) Fix NULL pointer dereference if a DTLS server received
1360 ChangeCipherSpec as first record (CVE-2009-1386).
1363 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1364 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1367 *) The fix in 0.9.8c that supposedly got rid of unsafe
1368 double-checked locking was incomplete for RSA blinding,
1369 addressing just one layer of what turns out to have been
1370 doubly unsafe triple-checked locking.
1372 So now fix this for real by retiring the MONT_HELPER macro
1373 in crypto/rsa/rsa_eay.c.
1375 [Bodo Moeller; problem pointed out by Marius Schilder]
1377 *) Various precautionary measures:
1379 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1381 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1382 (NB: This would require knowledge of the secret session ticket key
1383 to exploit, in which case you'd be SOL either way.)
1385 - Change bn_nist.c so that it will properly handle input BIGNUMs
1386 outside the expected range.
1388 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1391 [Neel Mehta, Bodo Moeller]
1393 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1394 the load fails. Useful for distros.
1395 [Ben Laurie and the FreeBSD team]
1397 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1400 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1403 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1405 This work was sponsored by Logica.
1408 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1409 keystores. Support for SSL/TLS client authentication too.
1410 Not compiled unless enable-capieng specified to Configure.
1412 This work was sponsored by Logica.
1415 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1416 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1417 attribute creation routines such as certifcate requests and PKCS#12
1421 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1423 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1424 handshake which could lead to a cilent crash as found using the
1425 Codenomicon TLS test suite (CVE-2008-1672)
1426 [Steve Henson, Mark Cox]
1428 *) Fix double free in TLS server name extensions which could lead to
1429 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1432 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1434 Clear the error queue to ensure that error entries left from
1435 older function calls do not interfere with the correct operation.
1436 [Lutz Jaenicke, Erik de Castro Lopo]
1438 *) Remove root CA certificates of commercial CAs:
1440 The OpenSSL project does not recommend any specific CA and does not
1441 have any policy with respect to including or excluding any CA.
1442 Therefore it does not make any sense to ship an arbitrary selection
1443 of root CA certificates with the OpenSSL software.
1446 *) RSA OAEP patches to fix two separate invalid memory reads.
1447 The first one involves inputs when 'lzero' is greater than
1448 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1449 before the beginning of from). The second one involves inputs where
1450 the 'db' section contains nothing but zeroes (there is a one-byte
1451 invalid read after the end of 'db').
1452 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1454 *) Partial backport from 0.9.9-dev:
1456 Introduce bn_mul_mont (dedicated Montgomery multiplication
1457 procedure) as a candidate for BIGNUM assembler implementation.
1458 While 0.9.9-dev uses assembler for various architectures, only
1459 x86_64 is available by default here in the 0.9.8 branch, and
1460 32-bit x86 is available through a compile-time setting.
1462 To try the 32-bit x86 assembler implementation, use Configure
1463 option "enable-montasm" (which exists only for this backport).
1465 As "enable-montasm" for 32-bit x86 disclaims code stability
1466 anyway, in this constellation we activate additional code
1467 backported from 0.9.9-dev for further performance improvements,
1468 namely BN_from_montgomery_word. (To enable this otherwise,
1469 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1471 [Andy Polyakov (backport partially by Bodo Moeller)]
1473 *) Add TLS session ticket callback. This allows an application to set
1474 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1475 values. This is useful for key rollover for example where several key
1476 sets may exist with different names.
1479 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1480 This was broken until now in 0.9.8 releases, such that the only way
1481 a registered ENGINE could be used (assuming it initialises
1482 successfully on the host) was to explicitly set it as the default
1483 for the relevant algorithms. This is in contradiction with 0.9.7
1484 behaviour and the documentation. With this fix, when an ENGINE is
1485 registered into a given algorithm's table of implementations, the
1486 'uptodate' flag is reset so that auto-discovery will be used next
1487 time a new context for that algorithm attempts to select an
1489 [Ian Lister (tweaked by Geoff Thorpe)]
1491 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1492 implemention in the following ways:
1494 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1497 Lack of BER streaming support means one pass streaming processing is
1498 only supported if data is detached: setting the streaming flag is
1499 ignored for embedded content.
1501 CMS support is disabled by default and must be explicitly enabled
1502 with the enable-cms configuration option.
1505 *) Update the GMP engine glue to do direct copies between BIGNUM and
1506 mpz_t when openssl and GMP use the same limb size. Otherwise the
1507 existing "conversion via a text string export" trick is still used.
1508 [Paul Sheer <paulsheer@gmail.com>]
1510 *) Zlib compression BIO. This is a filter BIO which compressed and
1511 uncompresses any data passed through it.
1514 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1515 RFC3394 compatible AES key wrapping.
1518 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1519 sets string data without copying. X509_ALGOR_set0() and
1520 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1521 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1522 from an X509_ATTRIBUTE structure optionally checking it occurs only
1523 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1527 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1528 to get the expected BN_FLG_CONSTTIME behavior.
1529 [Bodo Moeller (Google)]
1533 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1534 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1535 - added some more tests to do_tests.pl
1536 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1537 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1538 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1539 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1540 - various changes to netware.pl to enable gcc-cross builds on Win32
1542 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1543 - various changes to fix missing prototype warnings
1544 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1545 - added AES, WHIRLPOOL and CPUID assembler code to build files
1546 - added missing AES assembler make rules to mk1mf.pl
1547 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1548 [Guenter Knauf <eflash@gmx.net>]
1550 *) Implement certificate status request TLS extension defined in RFC3546.
1551 A client can set the appropriate parameters and receive the encoded
1552 OCSP response via a callback. A server can query the supplied parameters
1553 and set the encoded OCSP response in the callback. Add simplified examples
1554 to s_client and s_server.
1557 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1559 *) Fix various bugs:
1560 + Binary incompatibility of ssl_ctx_st structure
1561 + DTLS interoperation with non-compliant servers
1562 + Don't call get_session_cb() without proposed session
1563 + Fix ia64 assembler code
1564 [Andy Polyakov, Steve Henson]
1566 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1568 *) DTLS Handshake overhaul. There were longstanding issues with
1569 OpenSSL DTLS implementation, which were making it impossible for
1570 RFC 4347 compliant client to communicate with OpenSSL server.
1571 Unfortunately just fixing these incompatibilities would "cut off"
1572 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1573 server keeps tolerating non RFC compliant syntax. The opposite is
1574 not true, 0.9.8f client can not communicate with earlier server.
1575 This update even addresses CVE-2007-4995.
1578 *) Changes to avoid need for function casts in OpenSSL: some compilers
1579 (gcc 4.2 and later) reject their use.
1580 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1583 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1584 RFC4507bis. The encrypted ticket format is an encrypted encoded
1585 SSL_SESSION structure, that way new session features are automatically
1588 If a client application caches session in an SSL_SESSION structure
1589 support is transparent because tickets are now stored in the encoded
1592 The SSL_CTX structure automatically generates keys for ticket
1593 protection in servers so again support should be possible
1594 with no application modification.
1596 If a client or server wishes to disable RFC4507 support then the option
1597 SSL_OP_NO_TICKET can be set.
1599 Add a TLS extension debugging callback to allow the contents of any client
1600 or server extensions to be examined.
1602 This work was sponsored by Google.
1605 *) Add initial support for TLS extensions, specifically for the server_name
1606 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1607 have new members for a host name. The SSL data structure has an
1608 additional member SSL_CTX *initial_ctx so that new sessions can be
1609 stored in that context to allow for session resumption, even after the
1610 SSL has been switched to a new SSL_CTX in reaction to a client's
1611 server_name extension.
1613 New functions (subject to change):
1615 SSL_get_servername()
1616 SSL_get_servername_type()
1619 New CTRL codes and macros (subject to change):
1621 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1622 - SSL_CTX_set_tlsext_servername_callback()
1623 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1624 - SSL_CTX_set_tlsext_servername_arg()
1625 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1627 openssl s_client has a new '-servername ...' option.
1629 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1630 '-key2 ...', '-servername_fatal' (subject to change). This allows
1631 testing the HostName extension for a specific single host name ('-cert'
1632 and '-key' remain fallbacks for handshakes without HostName
1633 negotiation). If the unrecogninzed_name alert has to be sent, this by
1634 default is a warning; it becomes fatal with the '-servername_fatal'
1637 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1639 *) Add AES and SSE2 assembly language support to VC++ build.
1642 *) Mitigate attack on final subtraction in Montgomery reduction.
1645 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1646 (which previously caused an internal error).
1649 *) Squeeze another 10% out of IGE mode when in != out.
1652 *) AES IGE mode speedup.
1653 [Dean Gaudet (Google)]
1655 *) Add the Korean symmetric 128-bit cipher SEED (see
1656 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1657 add SEED ciphersuites from RFC 4162:
1659 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1660 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1661 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1662 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1664 To minimize changes between patchlevels in the OpenSSL 0.9.8
1665 series, SEED remains excluded from compilation unless OpenSSL
1666 is configured with 'enable-seed'.
1667 [KISA, Bodo Moeller]
1669 *) Mitigate branch prediction attacks, which can be practical if a
1670 single processor is shared, allowing a spy process to extract
1671 information. For detailed background information, see
1672 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1673 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1674 and Necessary Software Countermeasures"). The core of the change
1675 are new versions BN_div_no_branch() and
1676 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1677 respectively, which are slower, but avoid the security-relevant
1678 conditional branches. These are automatically called by BN_div()
1679 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1680 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1681 remove a conditional branch.
1683 BN_FLG_CONSTTIME is the new name for the previous
1684 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1685 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1686 in the exponent causes BN_mod_exp_mont() to use the alternative
1687 implementation in BN_mod_exp_mont_consttime().) The old name
1688 remains as a deprecated alias.
1690 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1691 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1692 constant-time implementations for more than just exponentiation.
1693 Here too the old name is kept as a deprecated alias.
1695 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1696 the BN_BLINDING structure gets an independent copy of the
1697 modulus. This means that the previous "BIGNUM *m" argument to
1698 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1699 essentially becomes "const BIGNUM *m", although we can't actually
1700 change this in the header file before 0.9.9. It allows
1701 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1702 enable BN_FLG_CONSTTIME.
1704 [Matthew D Wood (Intel Corp)]
1706 *) In the SSL/TLS server implementation, be strict about session ID
1707 context matching (which matters if an application uses a single
1708 external cache for different purposes). Previously,
1709 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1710 set. This did ensure strict client verification, but meant that,
1711 with applications using a single external cache for quite
1712 different requirements, clients could circumvent ciphersuite
1713 restrictions for a given session ID context by starting a session
1714 in a different context.
1717 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1718 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1719 authentication-only ciphersuites.
1722 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1723 not complete and could lead to a possible single byte overflow
1724 (CVE-2007-5135) [Ben Laurie]
1726 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1728 *) Since AES128 and AES256 (and similarly Camellia128 and
1729 Camellia256) share a single mask bit in the logic of
1730 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1731 kludge to work properly if AES128 is available and AES256 isn't
1732 (or if Camellia128 is available and Camellia256 isn't).
1735 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1736 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1737 When a point or a seed is encoded in a BIT STRING, we need to
1738 prevent the removal of trailing zero bits to get the proper DER
1739 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1740 of a NamedBitList, for which trailing 0 bits need to be removed.)
1743 *) Have SSL/TLS server implementation tolerate "mismatched" record
1744 protocol version while receiving ClientHello even if the
1745 ClientHello is fragmented. (The server can't insist on the
1746 particular protocol version it has chosen before the ServerHello
1747 message has informed the client about his choice.)
1750 *) Add RFC 3779 support.
1751 [Rob Austein for ARIN, Ben Laurie]
1753 *) Load error codes if they are not already present instead of using a
1754 static variable. This allows them to be cleanly unloaded and reloaded.
1755 Improve header file function name parsing.
1758 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1759 or CAPABILITY handshake as required by RFCs.
1762 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1764 *) Introduce limits to prevent malicious keys being able to
1765 cause a denial of service. (CVE-2006-2940)
1766 [Steve Henson, Bodo Moeller]
1768 *) Fix ASN.1 parsing of certain invalid structures that can result
1769 in a denial of service. (CVE-2006-2937) [Steve Henson]
1771 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1772 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1774 *) Fix SSL client code which could crash if connecting to a
1775 malicious SSLv2 server. (CVE-2006-4343)
1776 [Tavis Ormandy and Will Drewry, Google Security Team]
1778 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1779 match only those. Before that, "AES256-SHA" would be interpreted
1780 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1781 the same strength classification in 0.9.7h) as we currently only
1782 have a single AES bit in the ciphersuite description bitmap.
1783 That change, however, also applied to ciphersuite strings such as
1784 "RC4-MD5" that intentionally matched multiple ciphersuites --
1785 namely, SSL 2.0 ciphersuites in addition to the more common ones
1786 from SSL 3.0/TLS 1.0.
1788 So we change the selection algorithm again: Naming an explicit
1789 ciphersuite selects this one ciphersuite, and any other similar
1790 ciphersuite (same bitmap) from *other* protocol versions.
1791 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1792 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1794 Since SSL 2.0 does not have any ciphersuites for which the
1795 128/256 bit distinction would be relevant, this works for now.
1796 The proper fix will be to use different bits for AES128 and
1797 AES256, which would have avoided the problems from the beginning;
1798 however, bits are scarce, so we can only do this in a new release
1799 (not just a patchlevel) when we can change the SSL_CIPHER
1800 definition to split the single 'unsigned long mask' bitmap into
1801 multiple values to extend the available space.
1805 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1807 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1808 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1810 *) Add AES IGE and biIGE modes.
1813 *) Change the Unix randomness entropy gathering to use poll() when
1814 possible instead of select(), since the latter has some
1815 undesirable limitations.
1816 [Darryl Miles via Richard Levitte and Bodo Moeller]
1818 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1819 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1820 cannot be implicitly activated as part of, e.g., the "AES" alias.
1821 However, please upgrade to OpenSSL 0.9.9[-dev] for
1822 non-experimental use of the ECC ciphersuites to get TLS extension
1823 support, which is required for curve and point format negotiation
1824 to avoid potential handshake problems.
1827 *) Disable rogue ciphersuites:
1829 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1830 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1831 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1833 The latter two were purportedly from
1834 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1837 Also deactivate the remaining ciphersuites from
1838 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1839 unofficial, and the ID has long expired.
1842 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1843 dual-core machines) and other potential thread-safety issues.
1846 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1847 versions), which is now available for royalty-free use
1848 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1849 Also, add Camellia TLS ciphersuites from RFC 4132.
1851 To minimize changes between patchlevels in the OpenSSL 0.9.8
1852 series, Camellia remains excluded from compilation unless OpenSSL
1853 is configured with 'enable-camellia'.
1856 *) Disable the padding bug check when compression is in use. The padding
1857 bug check assumes the first packet is of even length, this is not
1858 necessarily true if compresssion is enabled and can result in false
1859 positives causing handshake failure. The actual bug test is ancient
1860 code so it is hoped that implementations will either have fixed it by
1861 now or any which still have the bug do not support compression.
1864 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1866 *) When applying a cipher rule check to see if string match is an explicit
1867 cipher suite and only match that one cipher suite if it is.
1870 *) Link in manifests for VC++ if needed.
1871 [Austin Ziegler <halostatue@gmail.com>]
1873 *) Update support for ECC-based TLS ciphersuites according to
1874 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1875 TLS extensions, which are supported starting with the 0.9.9
1876 branch, not in the OpenSSL 0.9.8 branch).
1879 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1880 opaque EVP_CIPHER_CTX handling.
1883 *) Fixes and enhancements to zlib compression code. We now only use
1884 "zlib1.dll" and use the default __cdecl calling convention on Win32
1885 to conform with the standards mentioned here:
1886 http://www.zlib.net/DLL_FAQ.txt
1887 Static zlib linking now works on Windows and the new --with-zlib-include
1888 --with-zlib-lib options to Configure can be used to supply the location
1889 of the headers and library. Gracefully handle case where zlib library
1893 *) Several fixes and enhancements to the OID generation code. The old code
1894 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1895 handle numbers larger than ULONG_MAX, truncated printing and had a
1896 non standard OBJ_obj2txt() behaviour.
1899 *) Add support for building of engines under engine/ as shared libraries
1900 under VC++ build system.
1903 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1904 Hopefully, we will not see any false combination of paths any more.
1907 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1909 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1910 (part of SSL_OP_ALL). This option used to disable the
1911 countermeasure against man-in-the-middle protocol-version
1912 rollback in the SSL 2.0 server implementation, which is a bad
1913 idea. (CVE-2005-2969)
1915 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1916 for Information Security, National Institute of Advanced Industrial
1917 Science and Technology [AIST], Japan)]
1919 *) Add two function to clear and return the verify parameter flags.
1922 *) Keep cipherlists sorted in the source instead of sorting them at
1923 runtime, thus removing the need for a lock.
1926 *) Avoid some small subgroup attacks in Diffie-Hellman.
1927 [Nick Mathewson and Ben Laurie]
1929 *) Add functions for well-known primes.
1932 *) Extended Windows CE support.
1933 [Satoshi Nakamura and Andy Polyakov]
1935 *) Initialize SSL_METHOD structures at compile time instead of during
1936 runtime, thus removing the need for a lock.
1939 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1940 attempting to decrypt each encrypted key in turn. Add support to
1944 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1946 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1949 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1952 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1953 key into the same file any more.
1956 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1959 *) Add -utf8 command line and config file option to 'ca'.
1960 [Stefan <stf@udoma.org]
1962 *) Removed the macro des_crypt(), as it seems to conflict with some
1963 libraries. Use DES_crypt().
1966 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1967 involves renaming the source and generated shared-libs for
1968 both. The engines will accept the corrected or legacy ids
1969 ('ncipher' and '4758_cca' respectively) when binding. NB,
1970 this only applies when building 'shared'.
1971 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1973 *) Add attribute functions to EVP_PKEY structure. Modify
1974 PKCS12_create() to recognize a CSP name attribute and
1975 use it. Make -CSP option work again in pkcs12 utility.
1978 *) Add new functionality to the bn blinding code:
1979 - automatic re-creation of the BN_BLINDING parameters after
1980 a fixed number of uses (currently 32)
1981 - add new function for parameter creation
1982 - introduce flags to control the update behaviour of the
1983 BN_BLINDING parameters
1984 - hide BN_BLINDING structure
1985 Add a second BN_BLINDING slot to the RSA structure to improve
1986 performance when a single RSA object is shared among several
1990 *) Add support for DTLS.
1991 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1993 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1994 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1997 *) Remove buggy and incompletet DH cert support from
1998 ssl/ssl_rsa.c and ssl/s3_both.c
2001 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2002 the apps/openssl applications.
2005 *) Compile clean with "-Wall -Wmissing-prototypes
2006 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2007 DEBUG_SAFESTACK must also be set.
2010 *) Change ./Configure so that certain algorithms can be disabled by default.
2011 The new counterpiece to "no-xxx" is "enable-xxx".
2013 The patented RC5 and MDC2 algorithms will now be disabled unless
2014 "enable-rc5" and "enable-mdc2", respectively, are specified.
2016 (IDEA remains enabled despite being patented. This is because IDEA
2017 is frequently required for interoperability, and there is no license
2018 fee for non-commercial use. As before, "no-idea" can be used to
2019 avoid this algorithm.)
2023 *) Add processing of proxy certificates (see RFC 3820). This work was
2024 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2025 EGEE (Enabling Grids for E-science in Europe).
2028 *) RC4 performance overhaul on modern architectures/implementations, such
2029 as Intel P4, IA-64 and AMD64.
2032 *) New utility extract-section.pl. This can be used specify an alternative
2033 section number in a pod file instead of having to treat each file as
2034 a separate case in Makefile. This can be done by adding two lines to the
2037 =for comment openssl_section:XXX
2039 The blank line is mandatory.
2043 *) New arguments -certform, -keyform and -pass for s_client and s_server
2044 to allow alternative format key and certificate files and passphrase
2048 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2049 update associated structures and add various utility functions.
2051 Add new policy related verify parameters, include policy checking in
2052 standard verify code. Enhance 'smime' application with extra parameters
2053 to support policy checking and print out.
2056 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2057 Nehemiah processors. These extensions support AES encryption in hardware
2058 as well as RNG (though RNG support is currently disabled).
2059 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2061 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2064 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2065 [Andy Polyakov and a number of other people]
2067 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2068 implementation contributed by IBM.
2069 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2071 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2072 exponent rather than 'unsigned long'. There is a corresponding change to
2073 the new 'rsa_keygen' element of the RSA_METHOD structure.
2074 [Jelte Jansen, Geoff Thorpe]
2076 *) Functionality for creating the initial serial number file is now
2077 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2079 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2080 number file to 1, which is bound to cause problems. To avoid
2081 the problems while respecting compatibility between different 0.9.7
2082 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2083 CA.pl for serial number initialization. With the new release 0.9.8,
2084 we can fix the problem directly in the 'ca' utility.)
2087 *) Reduced header interdepencies by declaring more opaque objects in
2088 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2089 give fewer recursive includes, which could break lazy source code - so
2090 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2091 developers should define this symbol when building and using openssl to
2092 ensure they track the recommended behaviour, interfaces, [etc], but
2093 backwards-compatible behaviour prevails when this isn't defined.
2096 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2099 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2100 This will generate a random key of the appropriate length based on the
2101 cipher context. The EVP_CIPHER can provide its own random key generation
2102 routine to support keys of a specific form. This is used in the des and
2103 3des routines to generate a key of the correct parity. Update S/MIME
2104 code to use new functions and hence generate correct parity DES keys.
2105 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2106 valid (weak or incorrect parity).
2109 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2110 as looking them up. This is useful when the verified structure may contain
2111 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2112 present unless the new PKCS7_NO_CRL flag is asserted.
2115 *) Extend ASN1 oid configuration module. It now additionally accepts the
2118 shortName = some long name, 1.2.3.4
2121 *) Reimplemented the BN_CTX implementation. There is now no more static
2122 limitation on the number of variables it can handle nor the depth of the
2123 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2124 information can now expand as required, and rather than having a single
2125 static array of bignums, BN_CTX now uses a linked-list of such arrays
2126 allowing it to expand on demand whilst maintaining the usefulness of
2127 BN_CTX's "bundling".
2130 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2131 to allow all RSA operations to function using a single BN_CTX.
2134 *) Preliminary support for certificate policy evaluation and checking. This
2135 is initially intended to pass the tests outlined in "Conformance Testing
2136 of Relying Party Client Certificate Path Processing Logic" v1.07.
2139 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2140 remained unused and not that useful. A variety of other little bignum
2141 tweaks and fixes have also been made continuing on from the audit (see
2145 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2146 associated ASN1, EVP and SSL functions and old ASN1 macros.
2149 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2150 and this should never fail. So the return value from the use of
2151 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2152 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2155 *) BN_CTX_get() should return zero-valued bignums, providing the same
2156 initialised value as BN_new().
2157 [Geoff Thorpe, suggested by Ulf Möller]
2159 *) Support for inhibitAnyPolicy certificate extension.
2162 *) An audit of the BIGNUM code is underway, for which debugging code is
2163 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2164 is considered valid when processing BIGNUMs, and causes execution to
2165 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2166 further steps are taken to deliberately pollute unused data in BIGNUM
2167 structures to try and expose faulty code further on. For now, openssl will
2168 (in its default mode of operation) continue to tolerate the inconsistent
2169 forms that it has tolerated in the past, but authors and packagers should
2170 consider trying openssl and their own applications when compiled with
2171 these debugging symbols defined. It will help highlight potential bugs in
2172 their own code, and will improve the test coverage for OpenSSL itself. At
2173 some point, these tighter rules will become openssl's default to improve
2174 maintainability, though the assert()s and other overheads will remain only
2175 in debugging configurations. See bn.h for more details.
2176 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2178 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2179 that can only be obtained through BN_CTX_new() (which implicitly
2180 initialises it). The presence of this function only made it possible
2181 to overwrite an existing structure (and cause memory leaks).
2184 *) Because of the callback-based approach for implementing LHASH as a
2185 template type, lh_insert() adds opaque objects to hash-tables and
2186 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2187 to clean up those corresponding objects before destroying the hash table
2188 (and losing the object pointers). So some over-zealous constifications in
2189 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2190 objects as "const" and the lh_doall[_arg] callback wrappers are not
2191 prototyped to have "const" restrictions on the object pointers they are
2192 given (and so aren't required to cast them away any more).
2195 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2196 (speed) prefers to use its own implementation. The two implementations
2197 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2198 its object type properly exposed (MS_TM) instead of casting to/from "char
2199 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2200 aren't necessarily the greatest nomenclatures - but this is what was used
2201 internally to the implementation so I've used that for now.
2204 *) Ensure that deprecated functions do not get compiled when
2205 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2206 the self-tests were still using deprecated key-generation functions so
2207 these have been updated also.
2210 *) Reorganise PKCS#7 code to separate the digest location functionality
2211 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2212 New function PKCS7_set_digest() to set the digest type for PKCS#7
2213 digestedData type. Add additional code to correctly generate the
2214 digestedData type and add support for this type in PKCS7 initialization
2218 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2219 structure of type "other".
2222 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2223 sure the loop does correctly stop and breaking ("division by zero")
2224 modulus operations are not performed. The (pre-generated) prime
2225 table crypto/bn/bn_prime.h was already correct, but it could not be
2226 re-generated on some platforms because of the "division by zero"
2227 situation in the script.
2228 [Ralf S. Engelschall]
2230 *) Update support for ECC-based TLS ciphersuites according to
2231 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2232 SHA-1 now is only used for "small" curves (where the
2233 representation of a field element takes up to 24 bytes); for
2234 larger curves, the field element resulting from ECDH is directly
2235 used as premaster secret.
2236 [Douglas Stebila (Sun Microsystems Laboratories)]
2238 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2239 curve secp160r1 to the tests.
2240 [Douglas Stebila (Sun Microsystems Laboratories)]
2242 *) Add the possibility to load symbols globally with DSO.
2243 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2245 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2246 control of the error stack.
2249 *) Add support for STORE in ENGINE.
2252 *) Add the STORE type. The intention is to provide a common interface
2253 to certificate and key stores, be they simple file-based stores, or
2254 HSM-type store, or LDAP stores, or...
2255 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2258 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2259 pass a list of arguments to any function as well as provide a way
2260 for a function to pass data back to the caller.
2263 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2264 works like BUF_strdup() but can be used to duplicate a portion of
2265 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2269 *) Add the function sk_find_ex() which works like sk_find(), but will
2270 return an index to an element even if an exact match couldn't be
2271 found. The index is guaranteed to point at the element where the
2272 searched-for key would be inserted to preserve sorting order.
2275 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2276 takes an extra flags argument for optional functionality. Currently,
2277 the following flags are defined:
2279 OBJ_BSEARCH_VALUE_ON_NOMATCH
2280 This one gets OBJ_bsearch_ex() to return a pointer to the first
2281 element where the comparing function returns a negative or zero
2284 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2285 This one gets OBJ_bsearch_ex() to return a pointer to the first
2286 element where the comparing function returns zero. This is useful
2287 if there are more than one element where the comparing function
2291 *) Make it possible to create self-signed certificates with 'openssl ca'
2292 in such a way that the self-signed certificate becomes part of the
2293 CA database and uses the same mechanisms for serial number generation
2294 as all other certificate signing. The new flag '-selfsign' enables
2295 this functionality. Adapt CA.sh and CA.pl.in.
2298 *) Add functionality to check the public key of a certificate request
2299 against a given private. This is useful to check that a certificate
2300 request can be signed by that key (self-signing).
2303 *) Make it possible to have multiple active certificates with the same
2304 subject in the CA index file. This is done only if the keyword
2305 'unique_subject' is set to 'no' in the main CA section (default
2306 if 'CA_default') of the configuration file. The value is saved
2307 with the database itself in a separate index attribute file,
2308 named like the index file with '.attr' appended to the name.
2311 *) Generate muti valued AVAs using '+' notation in config files for
2315 *) Support for nameConstraints certificate extension.
2318 *) Support for policyConstraints certificate extension.
2321 *) Support for policyMappings certificate extension.
2324 *) Make sure the default DSA_METHOD implementation only uses its
2325 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2326 and change its own handlers to be NULL so as to remove unnecessary
2327 indirection. This lets alternative implementations fallback to the
2328 default implementation more easily.
2331 *) Support for directoryName in GeneralName related extensions
2335 *) Make it possible to link applications using Makefile.shared.
2336 Make that possible even when linking against static libraries!
2339 *) Support for single pass processing for S/MIME signing. This now
2340 means that S/MIME signing can be done from a pipe, in addition
2341 cleartext signing (multipart/signed type) is effectively streaming
2342 and the signed data does not need to be all held in memory.
2344 This is done with a new flag PKCS7_STREAM. When this flag is set
2345 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2346 is done after the data is output (and digests calculated) in
2347 SMIME_write_PKCS7().
2350 *) Add full support for -rpath/-R, both in shared libraries and
2351 applications, at least on the platforms where it's known how
2355 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2356 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2357 will now compute a table of multiples of the generator that
2358 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2359 faster (notably in the case of a single point multiplication,
2360 scalar * generator).
2361 [Nils Larsch, Bodo Moeller]
2363 *) IPv6 support for certificate extensions. The various extensions
2364 which use the IP:a.b.c.d can now take IPv6 addresses using the
2365 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2369 *) Added an ENGINE that implements RSA by performing private key
2370 exponentiations with the GMP library. The conversions to and from
2371 GMP's mpz_t format aren't optimised nor are any montgomery forms
2372 cached, and on x86 it appears OpenSSL's own performance has caught up.
2373 However there are likely to be other architectures where GMP could
2374 provide a boost. This ENGINE is not built in by default, but it can be
2375 specified at Configure time and should be accompanied by the necessary
2376 linker additions, eg;
2377 ./config -DOPENSSL_USE_GMP -lgmp
2380 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2381 testing availability of engines with "-t" - the old behaviour is
2382 produced by increasing the feature's verbosity with "-tt".
2385 *) ECDSA routines: under certain error conditions uninitialized BN objects
2386 could be freed. Solution: make sure initialization is performed early
2387 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2391 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2392 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2393 software implementations. For DSA and DH, parameter generation can
2394 also be overriden by providing the appropriate method callbacks.
2397 *) Change the "progress" mechanism used in key-generation and
2398 primality testing to functions that take a new BN_GENCB pointer in
2399 place of callback/argument pairs. The new API functions have "_ex"
2400 postfixes and the older functions are reimplemented as wrappers for
2401 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2402 declarations of the old functions to help (graceful) attempts to
2403 migrate to the new functions. Also, the new key-generation API
2404 functions operate on a caller-supplied key-structure and return
2405 success/failure rather than returning a key or NULL - this is to
2406 help make "keygen" another member function of RSA_METHOD etc.
2408 Example for using the new callback interface:
2410 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2414 BN_GENCB_set(&my_cb, my_callback, my_arg);
2416 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2417 /* For the meaning of a, b in calls to my_callback(), see the
2418 * documentation of the function that calls the callback.
2419 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2420 * my_callback should return 1 if it wants BN_is_prime_ex()
2421 * to continue, or 0 to stop.
2426 *) Change the ZLIB compression method to be stateful, and make it
2427 available to TLS with the number defined in
2428 draft-ietf-tls-compression-04.txt.
2431 *) Add the ASN.1 structures and functions for CertificatePair, which
2432 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2434 CertificatePair ::= SEQUENCE {
2435 forward [0] Certificate OPTIONAL,
2436 reverse [1] Certificate OPTIONAL,
2437 -- at least one of the pair shall be present -- }
2439 Also implement the PEM functions to read and write certificate
2440 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2442 This needed to be defined, mostly for the sake of the LDAP
2443 attribute crossCertificatePair, but may prove useful elsewhere as
2447 *) Make it possible to inhibit symlinking of shared libraries in
2448 Makefile.shared, for Cygwin's sake.
2451 *) Extend the BIGNUM API by creating a function
2452 void BN_set_negative(BIGNUM *a, int neg);
2453 and a macro that behave like
2454 int BN_is_negative(const BIGNUM *a);
2456 to avoid the need to access 'a->neg' directly in applications.
2459 *) Implement fast modular reduction for pseudo-Mersenne primes
2460 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2461 EC_GROUP_new_curve_GFp() will now automatically use this
2463 [Nils Larsch <nla@trustcenter.de>]
2465 *) Add new lock type (CRYPTO_LOCK_BN).
2468 *) Change the ENGINE framework to automatically load engines
2469 dynamically from specific directories unless they could be
2470 found to already be built in or loaded. Move all the
2471 current engines except for the cryptodev one to a new
2473 The engines in engines/ are built as shared libraries if
2474 the "shared" options was given to ./Configure or ./config.
2475 Otherwise, they are inserted in libcrypto.a.
2476 /usr/local/ssl/engines is the default directory for dynamic
2477 engines, but that can be overriden at configure time through
2478 the usual use of --prefix and/or --openssldir, and at run
2479 time with the environment variable OPENSSL_ENGINES.
2480 [Geoff Thorpe and Richard Levitte]
2482 *) Add Makefile.shared, a helper makefile to build shared
2483 libraries. Addapt Makefile.org.
2486 *) Add version info to Win32 DLLs.
2487 [Peter 'Luna' Runestig" <peter@runestig.com>]
2489 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2490 can be added using this API to created arbitrary PKCS#12
2491 files while avoiding the low level API.
2493 New options to PKCS12_create(), key or cert can be NULL and
2494 will then be omitted from the output file. The encryption
2495 algorithm NIDs can be set to -1 for no encryption, the mac
2496 iteration count can be set to 0 to omit the mac.
2498 Enhance pkcs12 utility by making the -nokeys and -nocerts
2499 options work when creating a PKCS#12 file. New option -nomac
2500 to omit the mac, NONE can be set for an encryption algorithm.
2501 New code is modified to use the enhanced PKCS12_create()
2502 instead of the low level API.
2505 *) Extend ASN1 encoder to support indefinite length constructed
2506 encoding. This can output sequences tags and octet strings in
2507 this form. Modify pk7_asn1.c to support indefinite length
2508 encoding. This is experimental and needs additional code to
2509 be useful, such as an ASN1 bio and some enhanced streaming
2512 Extend template encode functionality so that tagging is passed
2513 down to the template encoder.
2516 *) Let 'openssl req' fail if an argument to '-newkey' is not
2517 recognized instead of using RSA as a default.
2520 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2521 As these are not official, they are not included in "ALL";
2522 the "ECCdraft" ciphersuite group alias can be used to select them.
2523 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2525 *) Add ECDH engine support.
2526 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2528 *) Add ECDH in new directory crypto/ecdh/.
2529 [Douglas Stebila (Sun Microsystems Laboratories)]
2531 *) Let BN_rand_range() abort with an error after 100 iterations
2532 without success (which indicates a broken PRNG).
2535 *) Change BN_mod_sqrt() so that it verifies that the input value
2536 is really the square of the return value. (Previously,
2537 BN_mod_sqrt would show GIGO behaviour.)
2540 *) Add named elliptic curves over binary fields from X9.62, SECG,
2541 and WAP/WTLS; add OIDs that were still missing.
2543 [Sheueling Chang Shantz and Douglas Stebila
2544 (Sun Microsystems Laboratories)]
2546 *) Extend the EC library for elliptic curves over binary fields
2547 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2550 EC_GF2m_simple_method
2554 EC_GROUP_new_curve_GF2m
2555 EC_GROUP_set_curve_GF2m
2556 EC_GROUP_get_curve_GF2m
2557 EC_POINT_set_affine_coordinates_GF2m
2558 EC_POINT_get_affine_coordinates_GF2m
2559 EC_POINT_set_compressed_coordinates_GF2m
2561 Point compression for binary fields is disabled by default for
2562 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2565 As binary polynomials are represented as BIGNUMs, various members
2566 of the EC_GROUP and EC_POINT data structures can be shared
2567 between the implementations for prime fields and binary fields;
2568 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2569 are essentially identical to their ..._GFp counterparts.
2570 (For simplicity, the '..._GFp' prefix has been dropped from
2571 various internal method names.)
2573 An internal 'field_div' method (similar to 'field_mul' and
2574 'field_sqr') has been added; this is used only for binary fields.
2576 [Sheueling Chang Shantz and Douglas Stebila
2577 (Sun Microsystems Laboratories)]
2579 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2580 through methods ('mul', 'precompute_mult').
2582 The generic implementations (now internally called 'ec_wNAF_mul'
2583 and 'ec_wNAF_precomputed_mult') remain the default if these
2584 methods are undefined.
2586 [Sheueling Chang Shantz and Douglas Stebila
2587 (Sun Microsystems Laboratories)]
2589 *) New function EC_GROUP_get_degree, which is defined through
2590 EC_METHOD. For curves over prime fields, this returns the bit
2591 length of the modulus.
2593 [Sheueling Chang Shantz and Douglas Stebila
2594 (Sun Microsystems Laboratories)]
2596 *) New functions EC_GROUP_dup, EC_POINT_dup.
2597 (These simply call ..._new and ..._copy).
2599 [Sheueling Chang Shantz and Douglas Stebila
2600 (Sun Microsystems Laboratories)]
2602 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2603 Polynomials are represented as BIGNUMs (where the sign bit is not
2604 used) in the following functions [macros]:
2607 BN_GF2m_sub [= BN_GF2m_add]
2608 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2609 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2610 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2612 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2613 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2614 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2615 BN_GF2m_cmp [= BN_ucmp]
2617 (Note that only the 'mod' functions are actually for fields GF(2^m).
2618 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2620 For some functions, an the irreducible polynomial defining a
2621 field can be given as an 'unsigned int[]' with strictly
2622 decreasing elements giving the indices of those bits that are set;
2623 i.e., p[] represents the polynomial
2624 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2626 p[0] > p[1] > ... > p[k] = 0.
2627 This applies to the following functions:
2632 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2633 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2635 BN_GF2m_mod_sqrt_arr
2636 BN_GF2m_mod_solve_quad_arr
2640 Conversion can be performed by the following functions:
2645 bntest.c has additional tests for binary polynomial arithmetic.
2647 Two implementations for BN_GF2m_mod_div() are available.
2648 The default algorithm simply uses BN_GF2m_mod_inv() and
2649 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2650 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2651 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2653 [Sheueling Chang Shantz and Douglas Stebila
2654 (Sun Microsystems Laboratories)]
2656 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2657 functionality is disabled at compile-time.
2658 [Douglas Stebila <douglas.stebila@sun.com>]
2660 *) Change default behaviour of 'openssl asn1parse' so that more
2661 information is visible when viewing, e.g., a certificate:
2663 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2664 mode the content of non-printable OCTET STRINGs is output in a
2665 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2666 avoid the appearance of a printable string.
2667 [Nils Larsch <nla@trustcenter.de>]
2669 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2671 EC_GROUP_set_asn1_flag()
2672 EC_GROUP_get_asn1_flag()
2673 EC_GROUP_set_point_conversion_form()
2674 EC_GROUP_get_point_conversion_form()
2675 These control ASN1 encoding details:
2676 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2677 has been set to OPENSSL_EC_NAMED_CURVE.
2678 - Points are encoded in uncompressed form by default; options for
2679 asn1_for are as for point2oct, namely
2680 POINT_CONVERSION_COMPRESSED
2681 POINT_CONVERSION_UNCOMPRESSED
2682 POINT_CONVERSION_HYBRID
2684 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2687 EC_GROUP_get0_seed()
2688 EC_GROUP_get_seed_len()
2689 This is used only for ASN1 purposes (so far).
2690 [Nils Larsch <nla@trustcenter.de>]
2692 *) Add 'field_type' member to EC_METHOD, which holds the NID
2693 of the appropriate field type OID. The new function
2694 EC_METHOD_get_field_type() returns this value.
2695 [Nils Larsch <nla@trustcenter.de>]
2700 EC_POINT_point2hex()
2701 EC_POINT_hex2point()
2702 providing useful interfaces to EC_POINT_point2oct() and
2703 EC_POINT_oct2point().
2704 [Nils Larsch <nla@trustcenter.de>]
2706 *) Change internals of the EC library so that the functions
2707 EC_GROUP_set_generator()
2708 EC_GROUP_get_generator()
2709 EC_GROUP_get_order()
2710 EC_GROUP_get_cofactor()
2711 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2712 to methods, which would lead to unnecessary code duplication when
2713 adding different types of curves.
2714 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2716 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2717 arithmetic, and such that modified wNAFs are generated
2718 (which avoid length expansion in many cases).
2721 *) Add a function EC_GROUP_check_discriminant() (defined via
2722 EC_METHOD) that verifies that the curve discriminant is non-zero.
2724 Add a function EC_GROUP_check() that makes some sanity tests
2725 on a EC_GROUP, its generator and order. This includes
2726 EC_GROUP_check_discriminant().
2727 [Nils Larsch <nla@trustcenter.de>]
2729 *) Add ECDSA in new directory crypto/ecdsa/.
2731 Add applications 'openssl ecparam' and 'openssl ecdsa'
2732 (these are based on 'openssl dsaparam' and 'openssl dsa').
2734 ECDSA support is also included in various other files across the
2735 library. Most notably,
2736 - 'openssl req' now has a '-newkey ecdsa:file' option;
2737 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2738 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2739 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2740 them suitable for ECDSA where domain parameters must be
2741 extracted before the specific public key;
2742 - ECDSA engine support has been added.
2743 [Nils Larsch <nla@trustcenter.de>]
2745 *) Include some named elliptic curves, and add OIDs from X9.62,
2746 SECG, and WAP/WTLS. Each curve can be obtained from the new
2748 EC_GROUP_new_by_curve_name(),
2749 and the list of available named curves can be obtained with
2750 EC_get_builtin_curves().
2751 Also add a 'curve_name' member to EC_GROUP objects, which can be
2753 EC_GROUP_set_curve_name()
2754 EC_GROUP_get_curve_name()
2755 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2757 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2758 was actually never needed) and in BN_mul(). The removal in BN_mul()
2759 required a small change in bn_mul_part_recursive() and the addition
2760 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2761 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2762 bn_sub_words() and bn_add_words() except they take arrays with
2766 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2768 *) Cleanse PEM buffers before freeing them since they may contain
2770 [Benjamin Bennett <ben@psc.edu>]
2772 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2773 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2774 authentication-only ciphersuites.
2777 *) Since AES128 and AES256 share a single mask bit in the logic of
2778 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2779 kludge to work properly if AES128 is available and AES256 isn't.
2782 *) Expand security boundary to match 1.1.1 module.
2785 *) Remove redundant features: hash file source, editing of test vectors
2786 modify fipsld to use external fips_premain.c signature.
2789 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2790 run algorithm test programs.
2793 *) Make algorithm test programs more tolerant of whitespace.
2796 *) Have SSL/TLS server implementation tolerate "mismatched" record
2797 protocol version while receiving ClientHello even if the
2798 ClientHello is fragmented. (The server can't insist on the
2799 particular protocol version it has chosen before the ServerHello
2800 message has informed the client about his choice.)
2803 *) Load error codes if they are not already present instead of using a
2804 static variable. This allows them to be cleanly unloaded and reloaded.
2807 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2809 *) Introduce limits to prevent malicious keys being able to
2810 cause a denial of service. (CVE-2006-2940)
2811 [Steve Henson, Bodo Moeller]
2813 *) Fix ASN.1 parsing of certain invalid structures that can result
2814 in a denial of service. (CVE-2006-2937) [Steve Henson]
2816 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2817 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2819 *) Fix SSL client code which could crash if connecting to a
2820 malicious SSLv2 server. (CVE-2006-4343)
2821 [Tavis Ormandy and Will Drewry, Google Security Team]
2823 *) Change ciphersuite string processing so that an explicit
2824 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2825 will no longer include "AES128-SHA"), and any other similar
2826 ciphersuite (same bitmap) from *other* protocol versions (so that
2827 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2828 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2829 changes from 0.9.8b and 0.9.8d.
2832 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2834 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2835 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2837 *) Change the Unix randomness entropy gathering to use poll() when
2838 possible instead of select(), since the latter has some
2839 undesirable limitations.
2840 [Darryl Miles via Richard Levitte and Bodo Moeller]
2842 *) Disable rogue ciphersuites:
2844 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2845 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2846 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2848 The latter two were purportedly from
2849 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2852 Also deactive the remaining ciphersuites from
2853 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2854 unofficial, and the ID has long expired.
2857 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2858 dual-core machines) and other potential thread-safety issues.
2861 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2863 *) Adapt fipsld and the build system to link against the validated FIPS
2864 module in FIPS mode.
2867 *) Fixes for VC++ 2005 build under Windows.
2870 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2871 from a Windows bash shell such as MSYS. It is autodetected from the
2872 "config" script when run from a VC++ environment. Modify standard VC++
2873 build to use fipscanister.o from the GNU make build.
2876 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2878 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2879 The value now differs depending on if you build for FIPS or not.
2880 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2881 safely run with a non-FIPSed libcrypto, as it may crash because of
2882 the difference induced by this change.
2885 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2887 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2888 (part of SSL_OP_ALL). This option used to disable the
2889 countermeasure against man-in-the-middle protocol-version
2890 rollback in the SSL 2.0 server implementation, which is a bad
2891 idea. (CVE-2005-2969)
2893 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2894 for Information Security, National Institute of Advanced Industrial
2895 Science and Technology [AIST], Japan)]
2897 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2898 mainly for FIPS compliance and not fully integrated at this stage.
2901 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2902 the exponentiation using a fixed-length exponent. (Otherwise,
2903 the information leaked through timing could expose the secret key
2904 after many signatures; cf. Bleichenbacher's attack on DSA with
2908 *) Make a new fixed-window mod_exp implementation the default for
2909 RSA, DSA, and DH private-key operations so that the sequence of
2910 squares and multiplies and the memory access pattern are
2911 independent of the particular secret key. This will mitigate
2912 cache-timing and potential related attacks.
2914 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2915 and this is automatically used by BN_mod_exp_mont() if the new flag
2916 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2917 will use this BN flag for private exponents unless the flag
2918 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2919 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2921 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2923 *) Change the client implementation for SSLv23_method() and
2924 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2925 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2926 (Previously, the SSL 2.0 backwards compatible Client Hello
2927 message format would be used even with SSL_OP_NO_SSLv2.)
2930 *) Add support for smime-type MIME parameter in S/MIME messages which some
2934 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2935 a threadsafe manner. Modify rsa code to use new function and add calls
2936 to dsa and dh code (which had race conditions before).
2939 *) Include the fixed error library code in the C error file definitions
2940 instead of fixing them up at runtime. This keeps the error code
2941 structures constant.
2944 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2946 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2949 *) Fixes for newer kerberos headers. NB: the casts are needed because
2950 the 'length' field is signed on one version and unsigned on another
2951 with no (?) obvious way to tell the difference, without these VC++
2952 complains. Also the "definition" of FAR (blank) is no longer included
2953 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2954 some needed definitions.
2957 *) Undo Cygwin change.
2960 *) Added support for proxy certificates according to RFC 3820.
2961 Because they may be a security thread to unaware applications,
2962 they must be explicitely allowed in run-time. See
2963 docs/HOWTO/proxy_certificates.txt for further information.
2966 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2968 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2969 server and client random values. Previously
2970 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2971 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2973 This change has negligible security impact because:
2975 1. Server and client random values still have 24 bytes of pseudo random
2978 2. Server and client random values are sent in the clear in the initial
2981 3. The master secret is derived using the premaster secret (48 bytes in
2982 size for static RSA ciphersuites) as well as client server and random
2985 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2988 [Stephen Henson, reported by UK NISCC]
2990 *) Use Windows randomness collection on Cygwin.
2993 *) Fix hang in EGD/PRNGD query when communication socket is closed
2994 prematurely by EGD/PRNGD.
2995 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2997 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3000 *) Back-port of selected performance improvements from development
3001 branch, as well as improved support for PowerPC platforms.
3004 *) Add lots of checks for memory allocation failure, error codes to indicate
3005 failure and freeing up memory if a failure occurs.
3006 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3008 *) Add new -passin argument to dgst.
3011 *) Perform some character comparisons of different types in X509_NAME_cmp:
3012 this is needed for some certificates that reencode DNs into UTF8Strings
3013 (in violation of RFC3280) and can't or wont issue name rollover
3017 *) Make an explicit check during certificate validation to see that
3018 the CA setting in each certificate on the chain is correct. As a
3019 side effect always do the following basic checks on extensions,
3020 not just when there's an associated purpose to the check:
3022 - if there is an unhandled critical extension (unless the user
3023 has chosen to ignore this fault)
3024 - if the path length has been exceeded (if one is set at all)
3025 - that certain extensions fit the associated purpose (if one has
3029 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3031 *) Avoid a race condition when CRLs are checked in a multi threaded
3032 environment. This would happen due to the reordering of the revoked
3033 entries during signature checking and serial number lookup. Now the
3034 encoding is cached and the serial number sort performed under a lock.
3035 Add new STACK function sk_is_sorted().
3038 *) Add Delta CRL to the extension code.
3041 *) Various fixes to s3_pkt.c so alerts are sent properly.
3042 [David Holmes <d.holmes@f5.com>]
3044 *) Reduce the chances of duplicate issuer name and serial numbers (in
3045 violation of RFC3280) using the OpenSSL certificate creation utilities.
3046 This is done by creating a random 64 bit value for the initial serial
3047 number when a serial number file is created or when a self signed
3048 certificate is created using 'openssl req -x509'. The initial serial
3049 number file is created using 'openssl x509 -next_serial' in CA.pl
3050 rather than being initialized to 1.
3053 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3055 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3056 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3057 [Joe Orton, Steve Henson]
3059 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3061 [Joe Orton, Steve Henson]
3063 *) Make it possible to have multiple active certificates with the same
3064 subject in the CA index file. This is done only if the keyword
3065 'unique_subject' is set to 'no' in the main CA section (default
3066 if 'CA_default') of the configuration file. The value is saved
3067 with the database itself in a separate index attribute file,
3068 named like the index file with '.attr' appended to the name.
3071 *) X509 verify fixes. Disable broken certificate workarounds when
3072 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3073 keyUsage extension present. Don't accept CRLs with unhandled critical
3074 extensions: since verify currently doesn't process CRL extensions this
3075 rejects a CRL with *any* critical extensions. Add new verify error codes
3079 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3080 A clarification of RFC2560 will require the use of OCTET STRINGs and
3081 some implementations cannot handle the current raw format. Since OpenSSL
3082 copies and compares OCSP nonces as opaque blobs without any attempt at
3083 parsing them this should not create any compatibility issues.
3086 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3087 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3088 this HMAC (and other) operations are several times slower than OpenSSL
3092 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3093 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3095 *) Use the correct content when signing type "other".
3098 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3100 *) Fix various bugs revealed by running the NISCC test suite:
3102 Stop out of bounds reads in the ASN1 code when presented with
3103 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3105 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3107 If verify callback ignores invalid public key errors don't try to check
3108 certificate signature with the NULL public key.
3112 *) New -ignore_err option in ocsp application to stop the server
3113 exiting on the first error in a request.
3116 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3117 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3121 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3122 extra data after the compression methods not only for TLS 1.0
3123 but also for SSL 3.0 (as required by the specification).
3124 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3126 *) Change X509_certificate_type() to mark the key as exported/exportable
3127 when it's 512 *bits* long, not 512 bytes.
3130 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3131 blocks during encryption.
3134 *) Various fixes to base64 BIO and non blocking I/O. On write
3135 flushes were not handled properly if the BIO retried. On read
3136 data was not being buffered properly and had various logic bugs.
3137 This also affects blocking I/O when the data being decoded is a
3141 *) Various S/MIME bugfixes and compatibility changes:
3142 output correct application/pkcs7 MIME type if
3143 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3144 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3145 of files as .eml work). Correctly handle very long lines in MIME
3149 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3151 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3152 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3153 a protocol version number mismatch like a decryption error
3154 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3157 *) Turn on RSA blinding by default in the default implementation
3158 to avoid a timing attack. Applications that don't want it can call
3159 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3160 They would be ill-advised to do so in most cases.
3161 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3163 *) Change RSA blinding code so that it works when the PRNG is not
3164 seeded (in this case, the secret RSA exponent is abused as
3165 an unpredictable seed -- if it is not unpredictable, there
3166 is no point in blinding anyway). Make RSA blinding thread-safe
3167 by remembering the creator's thread ID in rsa->blinding and
3168 having all other threads use local one-time blinding factors
3169 (this requires more computation than sharing rsa->blinding, but
3170 avoids excessive locking; and if an RSA object is not shared
3171 between threads, blinding will still be very fast).
3174 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3175 ENGINE as defaults for all supported algorithms irrespective of
3176 the 'flags' parameter. 'flags' is now honoured, so applications
3177 should make sure they are passing it correctly.
3180 *) Target "mingw" now allows native Windows code to be generated in
3181 the Cygwin environment as well as with the MinGW compiler.
3184 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3186 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3187 via timing by performing a MAC computation even if incorrrect
3188 block cipher padding has been found. This is a countermeasure
3189 against active attacks where the attacker has to distinguish
3190 between bad padding and a MAC verification error. (CVE-2003-0078)
3192 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3193 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3194 Martin Vuagnoux (EPFL, Ilion)]
3196 *) Make the no-err option work as intended. The intention with no-err
3197 is not to have the whole error stack handling routines removed from
3198 libcrypto, it's only intended to remove all the function name and
3199 reason texts, thereby removing some of the footprint that may not
3200 be interesting if those errors aren't displayed anyway.
3202 NOTE: it's still possible for any application or module to have it's
3203 own set of error texts inserted. The routines are there, just not
3204 used by default when no-err is given.
3207 *) Add support for FreeBSD on IA64.
3208 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3210 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3211 Kerberos function mit_des_cbc_cksum(). Before this change,
3212 the value returned by DES_cbc_cksum() was like the one from
3213 mit_des_cbc_cksum(), except the bytes were swapped.
3214 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3216 *) Allow an application to disable the automatic SSL chain building.
3217 Before this a rather primitive chain build was always performed in
3218 ssl3_output_cert_chain(): an application had no way to send the
3219 correct chain if the automatic operation produced an incorrect result.
3221 Now the chain builder is disabled if either:
3223 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3225 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3227 The reasoning behind this is that an application would not want the
3228 auto chain building to take place if extra chain certificates are
3229 present and it might also want a means of sending no additional
3230 certificates (for example the chain has two certificates and the
3234 *) Add the possibility to build without the ENGINE framework.
3235 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3237 *) Under Win32 gmtime() can return NULL: check return value in
3238 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3241 *) DSA routines: under certain error conditions uninitialized BN objects
3242 could be freed. Solution: make sure initialization is performed early
3243 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3244 Nils Larsch <nla@trustcenter.de> via PR#459)
3247 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3248 checked on reconnect on the client side, therefore session resumption
3249 could still fail with a "ssl session id is different" error. This
3250 behaviour is masked when SSL_OP_ALL is used due to
3251 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3252 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3253 followup to PR #377.
3256 *) IA-32 assembler support enhancements: unified ELF targets, support
3257 for SCO/Caldera platforms, fix for Cygwin shared build.
3260 *) Add support for FreeBSD on sparc64. As a consequence, support for
3261 FreeBSD on non-x86 processors is separate from x86 processors on
3262 the config script, much like the NetBSD support.
3263 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3265 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3267 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3270 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3271 code (06) was taken as the first octet of the session ID and the last
3272 octet was ignored consequently. As a result SSLv2 client side session
3273 caching could not have worked due to the session ID mismatch between
3275 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3279 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3280 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3284 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3285 seems that in spite of existing for more than a year, many application
3286 author have done nothing to provide the necessary callbacks, which
3287 means that this particular engine will not work properly anywhere.
3288 This is a very unfortunate situation which forces us, in the name
3289 of usability, to give the hw_ncipher.c a static lock, which is part
3291 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3292 appear in 0.9.8 or later. We EXPECT application authors to have
3293 dealt properly with this when 0.9.8 is released (unless we actually
3294 make such changes in the libcrypto locking code that changes will
3295 have to be made anyway).
3298 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3299 octets have been read, EOF or an error occurs. Without this change
3300 some truncated ASN1 structures will not produce an error.
3303 *) Disable Heimdal support, since it hasn't been fully implemented.
3304 Still give the possibility to force the use of Heimdal, but with
3305 warnings and a request that patches get sent to openssl-dev.
3308 *) Add the VC-CE target, introduce the WINCE sysname, and add
3309 INSTALL.WCE and appropriate conditionals to make it build.
3310 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3312 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3313 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3314 edit numbers of the version.
3315 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3317 *) Introduce safe string copy and catenation functions
3318 (BUF_strlcpy() and BUF_strlcat()).
3319 [Ben Laurie (CHATS) and Richard Levitte]
3321 *) Avoid using fixed-size buffers for one-line DNs.
3322 [Ben Laurie (CHATS)]
3324 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3325 resizing buffers containing secrets, and use where appropriate.
3326 [Ben Laurie (CHATS)]
3328 *) Avoid using fixed size buffers for configuration file location.
3329 [Ben Laurie (CHATS)]
3331 *) Avoid filename truncation for various CA files.
3332 [Ben Laurie (CHATS)]
3334 *) Use sizeof in preference to magic numbers.
3335 [Ben Laurie (CHATS)]
3337 *) Avoid filename truncation in cert requests.
3338 [Ben Laurie (CHATS)]
3340 *) Add assertions to check for (supposedly impossible) buffer
3342 [Ben Laurie (CHATS)]
3344 *) Don't cache truncated DNS entries in the local cache (this could
3345 potentially lead to a spoofing attack).
3346 [Ben Laurie (CHATS)]
3348 *) Fix various buffers to be large enough for hex/decimal
3349 representations in a platform independent manner.
3350 [Ben Laurie (CHATS)]
3352 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3353 resizing buffers containing secrets, and use where appropriate.
3354 [Ben Laurie (CHATS)]
3356 *) Add BIO_indent() to avoid much slightly worrying code to do
3358 [Ben Laurie (CHATS)]
3360 *) Convert sprintf()/BIO_puts() to BIO_printf().
3361 [Ben Laurie (CHATS)]
3363 *) buffer_gets() could terminate with the buffer only half
3365 [Ben Laurie (CHATS)]
3367 *) Add assertions to prevent user-supplied crypto functions from
3368 overflowing internal buffers by having large block sizes, etc.
3369 [Ben Laurie (CHATS)]
3371 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3373 [Ben Laurie (CHATS)]
3375 *) Eliminate unused copy of key in RC4.
3376 [Ben Laurie (CHATS)]
3378 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3379 [Ben Laurie (CHATS)]
3381 *) Fix off-by-one error in EGD path.
3382 [Ben Laurie (CHATS)]
3384 *) If RANDFILE path is too long, ignore instead of truncating.
3385 [Ben Laurie (CHATS)]
3387 *) Eliminate unused and incorrectly sized X.509 structure
3389 [Ben Laurie (CHATS)]
3391 *) Eliminate unused and dangerous function knumber().
3392 [Ben Laurie (CHATS)]
3394 *) Eliminate unused and dangerous structure, KSSL_ERR.
3395 [Ben Laurie (CHATS)]
3397 *) Protect against overlong session ID context length in an encoded
3398 session object. Since these are local, this does not appear to be
3400 [Ben Laurie (CHATS)]
3402 *) Change from security patch (see 0.9.6e below) that did not affect
3403 the 0.9.6 release series:
3405 Remote buffer overflow in SSL3 protocol - an attacker could
3406 supply an oversized master key in Kerberos-enabled versions.
3408 [Ben Laurie (CHATS)]
3410 *) Change the SSL kerb5 codes to match RFC 2712.
3413 *) Make -nameopt work fully for req and add -reqopt switch.
3414 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3416 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3417 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3419 *) Make sure tests can be performed even if the corresponding algorithms
3420 have been removed entirely. This was also the last step to make
3421 OpenSSL compilable with DJGPP under all reasonable conditions.
3422 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3424 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3425 to allow version independent disabling of normally unselected ciphers,
3426 which may be activated as a side-effect of selecting a single cipher.
3428 (E.g., cipher list string "RSA" enables ciphersuites that are left
3429 out of "ALL" because they do not provide symmetric encryption.
3430 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3431 [Lutz Jaenicke, Bodo Moeller]
3433 *) Add appropriate support for separate platform-dependent build
3434 directories. The recommended way to make a platform-dependent
3435 build directory is the following (tested on Linux), maybe with
3438 # Place yourself outside of the OpenSSL source tree. In
3439 # this example, the environment variable OPENSSL_SOURCE
3440 # is assumed to contain the absolute OpenSSL source directory.
3441 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3442 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3443 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3444 mkdir -p `dirname $F`
3445 ln -s $OPENSSL_SOURCE/$F $F
3448 To be absolutely sure not to disturb the source tree, a "make clean"
3449 is a good thing. If it isn't successfull, don't worry about it,
3450 it probably means the source directory is very clean.
3453 *) Make sure any ENGINE control commands make local copies of string
3454 pointers passed to them whenever necessary. Otherwise it is possible
3455 the caller may have overwritten (or deallocated) the original string
3456 data when a later ENGINE operation tries to use the stored values.
3457 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3459 *) Improve diagnostics in file reading and command-line digests.
3460 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3462 *) Add AES modes CFB and OFB to the object database. Correct an
3463 error in AES-CFB decryption.
3466 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3467 allows existing EVP_CIPHER_CTX structures to be reused after
3468 calling EVP_*Final(). This behaviour is used by encryption
3469 BIOs and some applications. This has the side effect that
3470 applications must explicitly clean up cipher contexts with
3471 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3474 *) Check the values of dna and dnb in bn_mul_recursive before calling
3475 bn_mul_comba (a non zero value means the a or b arrays do not contain
3476 n2 elements) and fallback to bn_mul_normal if either is not zero.
3479 *) Fix escaping of non-ASCII characters when using the -subj option
3480 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3483 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3484 form for "surname", serialNumber has no short form.
3485 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3486 therefore remove "mail" short name for "internet 7".
3487 The OID for unique identifiers in X509 certificates is
3488 x500UniqueIdentifier, not uniqueIdentifier.
3489 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3492 *) Add an "init" command to the ENGINE config module and auto initialize
3493 ENGINEs. Without any "init" command the ENGINE will be initialized
3494 after all ctrl commands have been executed on it. If init=1 the
3495 ENGINE is initailized at that point (ctrls before that point are run
3496 on the uninitialized ENGINE and after on the initialized one). If
3497 init=0 then the ENGINE will not be iniatialized at all.
3500 *) Fix the 'app_verify_callback' interface so that the user-defined
3501 argument is actually passed to the callback: In the
3502 SSL_CTX_set_cert_verify_callback() prototype, the callback
3503 declaration has been changed from
3506 int (*cb)(X509_STORE_CTX *,void *);
3507 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3508 i=s->ctx->app_verify_callback(&ctx)
3509 has been changed into
3510 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3512 To update applications using SSL_CTX_set_cert_verify_callback(),
3513 a dummy argument can be added to their callback functions.
3514 [D. K. Smetters <smetters@parc.xerox.com>]
3516 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3517 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3519 *) Add and OPENSSL_LOAD_CONF define which will cause
3520 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3521 This allows older applications to transparently support certain
3522 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3523 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3524 load the config file and OPENSSL_add_all_algorithms_conf() which will
3525 always load it have also been added.
3528 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3529 Adjust NIDs and EVP layer.
3530 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3532 *) Config modules support in openssl utility.
3534 Most commands now load modules from the config file,
3535 though in a few (such as version) this isn't done
3536 because it couldn't be used for anything.
3538 In the case of ca and req the config file used is
3539 the same as the utility itself: that is the -config
3540 command line option can be used to specify an
3544 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3545 use "openssl_conf" if filename is NULL use default openssl config file.
3548 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3549 config section name. Add a new flag to tolerate a missing config file
3550 and move code to CONF_modules_load_file().
3553 *) Support for crypto accelerator cards from Accelerated Encryption
3554 Processing, www.aep.ie. (Use engine 'aep')
3555 The support was copied from 0.9.6c [engine] and adapted/corrected
3556 to work with the new engine framework.
3557 [AEP Inc. and Richard Levitte]
3559 *) Support for SureWare crypto accelerator cards from Baltimore
3560 Technologies. (Use engine 'sureware')
3561 The support was copied from 0.9.6c [engine] and adapted
3562 to work with the new engine framework.
3565 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3566 make the newer ENGINE framework commands for the CHIL engine work.
3567 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3569 *) Make it possible to produce shared libraries on ReliantUNIX.
3570 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3572 *) Add the configuration target debug-linux-ppro.
3573 Make 'openssl rsa' use the general key loading routines
3574 implemented in apps.c, and make those routines able to
3575 handle the key format FORMAT_NETSCAPE and the variant
3577 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3579 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3580 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3582 *) Add -keyform to rsautl, and document -engine.
3583 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3585 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3586 BIO_R_NO_SUCH_FILE error code rather than the generic
3587 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3590 *) Add new functions
3592 ERR_peek_last_error_line
3593 ERR_peek_last_error_line_data.
3594 These are similar to
3597 ERR_peek_error_line_data,
3598 but report on the latest error recorded rather than the first one
3599 still in the error queue.
3600 [Ben Laurie, Bodo Moeller]
3602 *) default_algorithms option in ENGINE config module. This allows things
3604 default_algorithms = ALL
3605 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3608 *) Prelminary ENGINE config module.
3611 *) New experimental application configuration code.
3614 *) Change the AES code to follow the same name structure as all other
3615 symmetric ciphers, and behave the same way. Move everything to
3616 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3617 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3619 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3620 [Ben Laurie and Theo de Raadt]
3622 *) Add option to output public keys in req command.
3623 [Massimiliano Pala madwolf@openca.org]
3625 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3626 (up to about 10% better than before for P-192 and P-224).
3629 *) New functions/macros
3631 SSL_CTX_set_msg_callback(ctx, cb)
3632 SSL_CTX_set_msg_callback_arg(ctx, arg)
3633 SSL_set_msg_callback(ssl, cb)
3634 SSL_set_msg_callback_arg(ssl, arg)
3636 to request calling a callback function
3638 void cb(int write_p, int version, int content_type,
3639 const void *buf, size_t len, SSL *ssl, void *arg)
3641 whenever a protocol message has been completely received
3642 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3643 protocol version according to which the SSL library interprets
3644 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3645 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3646 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3647 specification (change_cipher_spec(20), alert(21), handshake(22)).
3648 'buf' and 'len' point to the actual message, 'ssl' to the
3649 SSL object, and 'arg' is the application-defined value set by
3650 SSL[_CTX]_set_msg_callback_arg().
3652 'openssl s_client' and 'openssl s_server' have new '-msg' options
3653 to enable a callback that displays all protocol messages.
3656 *) Change the shared library support so shared libraries are built as
3657 soon as the corresponding static library is finished, and thereby get
3658 openssl and the test programs linked against the shared library.
3659 This still only happens when the keyword "shard" has been given to
3660 the configuration scripts.
3662 NOTE: shared library support is still an experimental thing, and
3663 backward binary compatibility is still not guaranteed.
3664 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3666 *) Add support for Subject Information Access extension.
3667 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3669 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3670 additional bytes when new memory had to be allocated, not just
3671 when reusing an existing buffer.
3674 *) New command line and configuration option 'utf8' for the req command.
3675 This allows field values to be specified as UTF8 strings.
3678 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3679 runs for the former and machine-readable output for the latter.
3682 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3683 of the e-mail address in the DN (i.e., it will go into a certificate
3684 extension only). The new configuration file option 'email_in_dn = no'
3685 has the same effect.
3686 [Massimiliano Pala madwolf@openca.org]
3688 *) Change all functions with names starting with des_ to be starting
3689 with DES_ instead. Add wrappers that are compatible with libdes,
3690 but are named _ossl_old_des_*. Finally, add macros that map the
3691 des_* symbols to the corresponding _ossl_old_des_* if libdes
3692 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3693 desired, the des_* symbols will be mapped to DES_*, with one
3696 Since we provide two compatibility mappings, the user needs to
3697 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3698 compatibility is desired. The default (i.e., when that macro
3699 isn't defined) is OpenSSL 0.9.6c compatibility.
3701 There are also macros that enable and disable the support of old
3702 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3703 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3704 are defined, the default will apply: to support the old des routines.
3706 In either case, one must include openssl/des.h to get the correct
3707 definitions. Do not try to just include openssl/des_old.h, that
3710 NOTE: This is a major break of an old API into a new one. Software
3711 authors are encouraged to switch to the DES_ style functions. Some
3712 time in the future, des_old.h and the libdes compatibility functions
3713 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3714 default), and then completely removed.
3717 *) Test for certificates which contain unsupported critical extensions.
3718 If such a certificate is found during a verify operation it is
3719 rejected by default: this behaviour can be overridden by either
3720 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3721 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3722 X509_supported_extension() has also been added which returns 1 if a
3723 particular extension is supported.
3726 *) Modify the behaviour of EVP cipher functions in similar way to digests
3727 to retain compatibility with existing code.
3730 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3731 compatibility with existing code. In particular the 'ctx' parameter does
3732 not have to be to be initialized before the call to EVP_DigestInit() and
3733 it is tidied up after a call to EVP_DigestFinal(). New function
3734 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3735 EVP_MD_CTX_copy() changed to not require the destination to be
3736 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3737 requires the destination to be valid.
3739 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3740 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3743 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3744 so that complete 'Handshake' protocol structures are kept in memory
3745 instead of overwriting 'msg_type' and 'length' with 'body' data.
3748 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3749 [Massimo Santin via Richard Levitte]
3751 *) Major restructuring to the underlying ENGINE code. This includes
3752 reduction of linker bloat, separation of pure "ENGINE" manipulation
3753 (initialisation, etc) from functionality dealing with implementations
3754 of specific crypto iterfaces. This change also introduces integrated
3755 support for symmetric ciphers and digest implementations - so ENGINEs
3756 can now accelerate these by providing EVP_CIPHER and EVP_MD
3757 implementations of their own. This is detailed in crypto/engine/README
3758 as it couldn't be adequately described here. However, there are a few
3759 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3760 were changed in the original introduction of ENGINE code have now
3761 reverted back - the hooking from this code to ENGINE is now a good
3762 deal more passive and at run-time, operations deal directly with
3763 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3764 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3765 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3766 they were not being used by the framework as there is no concept of a
3767 BIGNUM_METHOD and they could not be generalised to the new
3768 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3769 ENGINE_cpy() has been removed as it cannot be consistently defined in
3773 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3776 *) Change mkdef.pl to sort symbols that get the same entry number,
3777 and make sure the automatically generated functions ERR_load_*
3778 become part of libeay.num as well.
3781 *) New function SSL_renegotiate_pending(). This returns true once
3782 renegotiation has been requested (either SSL_renegotiate() call
3783 or HelloRequest/ClientHello receveived from the peer) and becomes
3784 false once a handshake has been completed.
3785 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3786 sends a HelloRequest, but does not ensure that a handshake takes
3787 place. SSL_renegotiate_pending() is useful for checking if the
3788 client has followed the request.)
3791 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3792 By default, clients may request session resumption even during
3793 renegotiation (if session ID contexts permit); with this option,
3794 session resumption is possible only in the first handshake.
3796 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3797 more bits available for options that should not be part of
3798 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3801 *) Add some demos for certificate and certificate request creation.
3804 *) Make maximum certificate chain size accepted from the peer application
3805 settable (SSL*_get/set_max_cert_list()), as proposed by
3806 "Douglas E. Engert" <deengert@anl.gov>.
3809 *) Add support for shared libraries for Unixware-7
3810 (Boyd Lynn Gerber <gerberb@zenez.com>).
3813 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3814 be done prior to destruction. Use this to unload error strings from
3815 ENGINEs that load their own error strings. NB: This adds two new API
3816 functions to "get" and "set" this destroy handler in an ENGINE.
3819 *) Alter all existing ENGINE implementations (except "openssl" and
3820 "openbsd") to dynamically instantiate their own error strings. This
3821 makes them more flexible to be built both as statically-linked ENGINEs
3822 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3823 Also, add stub code to each that makes building them as self-contained
3824 shared-libraries easier (see README.ENGINE).
3827 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3828 implementations into applications that are completely implemented in
3829 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3830 commands that can be used to configure what shared-library to load and
3831 to control aspects of the way it is handled. Also, made an update to
3832 the README.ENGINE file that brings its information up-to-date and
3833 provides some information and instructions on the "dynamic" ENGINE
3834 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3837 *) Make it possible to unload ranges of ERR strings with a new
3838 "ERR_unload_strings" function.
3841 *) Add a copy() function to EVP_MD.
3844 *) Make EVP_MD routines take a context pointer instead of just the
3845 md_data void pointer.
3848 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3849 that the digest can only process a single chunk of data
3850 (typically because it is provided by a piece of
3851 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3852 is only going to provide a single chunk of data, and hence the
3853 framework needn't accumulate the data for oneshot drivers.
3856 *) As with "ERR", make it possible to replace the underlying "ex_data"
3857 functions. This change also alters the storage and management of global
3858 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3859 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3860 index counters. The API functions that use this state have been changed
3861 to take a "class_index" rather than pointers to the class's local STACK
3862 and counter, and there is now an API function to dynamically create new
3863 classes. This centralisation allows us to (a) plug a lot of the
3864 thread-safety problems that existed, and (b) makes it possible to clean
3865 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3866 such data would previously have always leaked in application code and
3867 workarounds were in place to make the memory debugging turn a blind eye
3868 to it. Application code that doesn't use this new function will still
3869 leak as before, but their memory debugging output will announce it now
3870 rather than letting it slide.
3872 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3873 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3874 has a return value to indicate success or failure.
3877 *) Make it possible to replace the underlying "ERR" functions such that the
3878 global state (2 LHASH tables and 2 locks) is only used by the "default"
3879 implementation. This change also adds two functions to "get" and "set"
3880 the implementation prior to it being automatically set the first time
3881 any other ERR function takes place. Ie. an application can call "get",
3882 pass the return value to a module it has just loaded, and that module
3883 can call its own "set" function using that value. This means the
3884 module's "ERR" operations will use (and modify) the error state in the
3885 application and not in its own statically linked copy of OpenSSL code.
3888 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3889 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3890 the operation, and provides a more encapsulated way for external code
3891 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3892 to use these functions rather than manually incrementing the counts.
3894 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3897 *) Add EVP test program.
3900 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3903 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3904 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3905 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3906 These allow a CRL to be built without having to access X509_CRL fields
3907 directly. Modify 'ca' application to use new functions.
3910 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3911 bug workarounds. Rollback attack detection is a security feature.
3912 The problem will only arise on OpenSSL servers when TLSv1 is not
3913 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3914 Software authors not wanting to support TLSv1 will have special reasons
3915 for their choice and can explicitly enable this option.
3916 [Bodo Moeller, Lutz Jaenicke]
3918 *) Rationalise EVP so it can be extended: don't include a union of
3919 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3920 (similar to those existing for EVP_CIPHER_CTX).
3925 EVP_MD_CTX_init(&md); /* new function call */
3926 EVP_DigestInit(&md, EVP_sha1());
3927 EVP_DigestUpdate(&md, in, len);
3928 EVP_DigestFinal(&md, out, NULL);
3929 EVP_MD_CTX_cleanup(&md); /* new function call */
3933 *) Make DES key schedule conform to the usual scheme, as well as
3934 correcting its structure. This means that calls to DES functions
3935 now have to pass a pointer to a des_key_schedule instead of a
3936 plain des_key_schedule (which was actually always a pointer
3939 des_key_schedule ks;
3941 des_set_key_checked(..., &ks);
3942 des_ncbc_encrypt(..., &ks, ...);
3944 (Note that a later change renames 'des_...' into 'DES_...'.)
3947 *) Initial reduction of linker bloat: the use of some functions, such as
3948 PEM causes large amounts of unused functions to be linked in due to
3949 poor organisation. For example pem_all.c contains every PEM function
3950 which has a knock on effect of linking in large amounts of (unused)
3951 ASN1 code. Grouping together similar functions and splitting unrelated
3952 functions prevents this.
3955 *) Cleanup of EVP macros.
3958 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3959 correct _ecb suffix.
3962 *) Add initial OCSP responder support to ocsp application. The
3963 revocation information is handled using the text based index
3964 use by the ca application. The responder can either handle
3965 requests generated internally, supplied in files (for example
3966 via a CGI script) or using an internal minimal server.
3969 *) Add configuration choices to get zlib compression for TLS.
3972 *) Changes to Kerberos SSL for RFC 2712 compliance:
3973 1. Implemented real KerberosWrapper, instead of just using
3974 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3975 2. Implemented optional authenticator field of KerberosWrapper.
3977 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3978 and authenticator structs; see crypto/krb5/.
3980 Generalized Kerberos calls to support multiple Kerberos libraries.
3981 [Vern Staats <staatsvr@asc.hpc.mil>,
3982 Jeffrey Altman <jaltman@columbia.edu>
3983 via Richard Levitte]
3985 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3986 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3987 values for each of the key sizes rather than having just
3988 parameters (and 'speed' generating keys each time).
3991 *) Speed up EVP routines.
3994 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3995 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3996 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3997 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3999 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4000 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4001 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4004 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4006 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4009 *) Added the OS2-EMX target.
4010 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4012 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4013 to support NCONF routines in extension code. New function CONF_set_nconf()
4014 to allow functions which take an NCONF to also handle the old LHASH
4015 structure: this means that the old CONF compatible routines can be
4016 retained (in particular wrt extensions) without having to duplicate the
4017 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4020 *) Enhance the general user interface with mechanisms for inner control
4021 and with possibilities to have yes/no kind of prompts.
4024 *) Change all calls to low level digest routines in the library and
4025 applications to use EVP. Add missing calls to HMAC_cleanup() and
4026 don't assume HMAC_CTX can be copied using memcpy().
4027 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4029 *) Add the possibility to control engines through control names but with
4030 arbitrary arguments instead of just a string.
4031 Change the key loaders to take a UI_METHOD instead of a callback
4032 function pointer. NOTE: this breaks binary compatibility with earlier
4033 versions of OpenSSL [engine].
4034 Adapt the nCipher code for these new conditions and add a card insertion
4038 *) Enhance the general user interface with mechanisms to better support
4039 dialog box interfaces, application-defined prompts, the possibility
4040 to use defaults (for example default passwords from somewhere else)
4041 and interrupts/cancellations.
4044 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4045 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4048 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4049 tidy up some unnecessarily weird code in 'sk_new()').
4050 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4052 *) Change the key loading routines for ENGINEs to use the same kind
4053 callback (pem_password_cb) as all other routines that need this
4057 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4058 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4059 than this minimum value is recommended.
4062 *) New random seeder for OpenVMS, using the system process statistics
4063 that are easily reachable.
4066 *) Windows apparently can't transparently handle global
4067 variables defined in DLLs. Initialisations such as:
4069 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4071 wont compile. This is used by the any applications that need to
4072 declare their own ASN1 modules. This was fixed by adding the option
4073 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4074 needed for static libraries under Win32.
4077 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4078 setting of purpose and trust fields. New X509_STORE trust and
4079 purpose functions and tidy up setting in other SSL functions.
4082 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4083 structure. These are inherited by X509_STORE_CTX when it is
4084 initialised. This allows various defaults to be set in the
4085 X509_STORE structure (such as flags for CRL checking and custom
4086 purpose or trust settings) for functions which only use X509_STORE_CTX
4087 internally such as S/MIME.
4089 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4090 trust settings if they are not set in X509_STORE. This allows X509_STORE
4091 purposes and trust (in S/MIME for example) to override any set by default.
4093 Add command line options for CRL checking to smime, s_client and s_server
4097 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4098 are set then the CRL is looked up in the X509_STORE structure and
4099 its validity and signature checked, then if the certificate is found
4100 in the CRL the verify fails with a revoked error.
4102 Various new CRL related callbacks added to X509_STORE_CTX structure.
4104 Command line options added to 'verify' application to support this.
4106 This needs some additional work, such as being able to handle multiple
4107 CRLs with different times, extension based lookup (rather than just
4108 by subject name) and ultimately more complete V2 CRL extension
4112 *) Add a general user interface API (crypto/ui/). This is designed
4113 to replace things like des_read_password and friends (backward
4114 compatibility functions using this new API are provided).
4115 The purpose is to remove prompting functions from the DES code
4116 section as well as provide for prompting through dialog boxes in
4117 a window system and the like.
4120 *) Add "ex_data" support to ENGINE so implementations can add state at a
4121 per-structure level rather than having to store it globally.
4124 *) Make it possible for ENGINE structures to be copied when retrieved by
4125 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4126 This causes the "original" ENGINE structure to act like a template,
4127 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4128 operational state can be localised to each ENGINE structure, despite the
4129 fact they all share the same "methods". New ENGINE structures returned in
4130 this case have no functional references and the return value is the single
4131 structural reference. This matches the single structural reference returned
4132 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4136 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4137 needs to match any other type at all we need to manually clear the
4141 *) Changes to the "openssl engine" utility to include;
4142 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4143 about an ENGINE's available control commands.
4144 - executing control commands from command line arguments using the
4145 '-pre' and '-post' switches. '-post' is only used if '-t' is
4146 specified and the ENGINE is successfully initialised. The syntax for
4147 the individual commands are colon-separated, for example;
4148 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4151 *) New dynamic control command support for ENGINEs. ENGINEs can now
4152 declare their own commands (numbers), names (strings), descriptions,
4153 and input types for run-time discovery by calling applications. A
4154 subset of these commands are implicitly classed as "executable"
4155 depending on their input type, and only these can be invoked through
4156 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4157 can be based on user input, config files, etc). The distinction is
4158 that "executable" commands cannot return anything other than a boolean
4159 result and can only support numeric or string input, whereas some
4160 discoverable commands may only be for direct use through
4161 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4162 pointers, or other custom uses. The "executable" commands are to
4163 support parameterisations of ENGINE behaviour that can be
4164 unambiguously defined by ENGINEs and used consistently across any
4165 OpenSSL-based application. Commands have been added to all the
4166 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4167 control over shared-library paths without source code alterations.
4170 *) Changed all ENGINE implementations to dynamically allocate their
4171 ENGINEs rather than declaring them statically. Apart from this being
4172 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4173 this also allows the implementations to compile without using the
4174 internal engine_int.h header.
4177 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4178 'const' value. Any code that should be able to modify a RAND_METHOD
4179 should already have non-const pointers to it (ie. they should only
4180 modify their own ones).
4183 *) Made a variety of little tweaks to the ENGINE code.
4184 - "atalla" and "ubsec" string definitions were moved from header files
4185 to C code. "nuron" string definitions were placed in variables
4186 rather than hard-coded - allowing parameterisation of these values
4187 later on via ctrl() commands.
4188 - Removed unused "#if 0"'d code.
4189 - Fixed engine list iteration code so it uses ENGINE_free() to release
4190 structural references.
4191 - Constified the RAND_METHOD element of ENGINE structures.
4192 - Constified various get/set functions as appropriate and added
4193 missing functions (including a catch-all ENGINE_cpy that duplicates
4194 all ENGINE values onto a new ENGINE except reference counts/state).
4195 - Removed NULL parameter checks in get/set functions. Setting a method
4196 or function to NULL is a way of cancelling out a previously set
4197 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4198 and doesn't justify the extra error symbols and code.
4199 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4200 flags from engine_int.h to engine.h.
4201 - Changed prototypes for ENGINE handler functions (init(), finish(),
4202 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4205 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4206 to the algorithm using long division. The binary algorithm can be
4207 used only if the modulus is odd. On 32-bit systems, it is faster
4208 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4209 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4210 up to 450 bits. In 64-bit environments, the binary algorithm
4211 appears to be advantageous for much longer moduli; here we use it
4212 for moduli up to 2048 bits.
4215 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4216 could not support the combine flag in choice fields.
4219 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4220 extensions from a certificate request to the certificate.
4223 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4224 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4225 file: this allows the display of the certificate about to be
4226 signed to be customised, to allow certain fields to be included
4227 or excluded and extension details. The old system didn't display
4228 multicharacter strings properly, omitted fields not in the policy
4229 and couldn't display additional details such as extensions.
4232 *) Function EC_POINTs_mul for multiple scalar multiplication
4233 of an arbitrary number of elliptic curve points
4234 \sum scalars[i]*points[i],
4235 optionally including the generator defined for the EC_GROUP:
4236 scalar*generator + \sum scalars[i]*points[i].
4238 EC_POINT_mul is a simple wrapper function for the typical case
4239 that the point list has just one item (besides the optional
4243 *) First EC_METHODs for curves over GF(p):
4245 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4246 operations and provides various method functions that can also
4247 operate with faster implementations of modular arithmetic.
4249 EC_GFp_mont_method() reuses most functions that are part of
4250 EC_GFp_simple_method, but uses Montgomery arithmetic.
4252 [Bodo Moeller; point addition and point doubling
4253 implementation directly derived from source code provided by
4254 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4256 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4257 crypto/ec/ec_lib.c):
4259 Curves are EC_GROUP objects (with an optional group generator)
4260 based on EC_METHODs that are built into the library.
4262 Points are EC_POINT objects based on EC_GROUP objects.
4264 Most of the framework would be able to handle curves over arbitrary
4265 finite fields, but as there are no obvious types for fields other
4266 than GF(p), some functions are limited to that for now.
4269 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4270 that the file contains a complete HTTP response.
4273 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4274 change the def and num file printf format specifier from "%-40sXXX"
4275 to "%-39s XXX". The latter will always guarantee a space after the
4276 field while the former will cause them to run together if the field
4277 is 40 of more characters long.
4280 *) Constify the cipher and digest 'method' functions and structures
4281 and modify related functions to take constant EVP_MD and EVP_CIPHER
4285 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4286 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4289 *) Modify EVP_Digest*() routines so they now return values. Although the
4290 internal software routines can never fail additional hardware versions
4294 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4296 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4297 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4300 ERR_R_NESTED_ASN1_ERROR
4302 ERR_R_MISSING_ASN1_EOS
4303 were 4 .. 9, conflicting with
4304 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4306 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4307 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4309 Add new error code 'ERR_R_INTERNAL_ERROR'.
4312 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4316 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4317 sets the subject name for a new request or supersedes the
4318 subject name in a given request. Formats that can be parsed are
4319 'CN=Some Name, OU=myOU, C=IT'
4321 'CN=Some Name/OU=myOU/C=IT'.
4323 Add options '-batch' and '-verbose' to 'openssl req'.
4324 [Massimiliano Pala <madwolf@hackmasters.net>]
4326 *) Introduce the possibility to access global variables through
4327 functions on platform were that's the best way to handle exporting
4328 global variables in shared libraries. To enable this functionality,
4329 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4330 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4331 is normally done by Configure or something similar).
4333 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4334 in the source file (foo.c) like this:
4336 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4337 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4339 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4340 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4342 OPENSSL_DECLARE_GLOBAL(int,foo);
4343 #define foo OPENSSL_GLOBAL_REF(foo)
4344 OPENSSL_DECLARE_GLOBAL(double,bar);
4345 #define bar OPENSSL_GLOBAL_REF(bar)
4347 The #defines are very important, and therefore so is including the
4348 header file everywhere where the defined globals are used.
4350 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4351 of ASN.1 items, but that structure is a bit different.
4353 The largest change is in util/mkdef.pl which has been enhanced with
4354 better and easier to understand logic to choose which symbols should
4355 go into the Windows .def files as well as a number of fixes and code
4356 cleanup (among others, algorithm keywords are now sorted
4357 lexicographically to avoid constant rewrites).
4360 *) In BN_div() keep a copy of the sign of 'num' before writing the
4361 result to 'rm' because if rm==num the value will be overwritten
4362 and produce the wrong result if 'num' is negative: this caused
4363 problems with BN_mod() and BN_nnmod().
4366 *) Function OCSP_request_verify(). This checks the signature on an
4367 OCSP request and verifies the signer certificate. The signer
4368 certificate is just checked for a generic purpose and OCSP request
4372 *) Add OCSP_check_validity() function to check the validity of OCSP
4373 responses. OCSP responses are prepared in real time and may only
4374 be a few seconds old. Simply checking that the current time lies
4375 between thisUpdate and nextUpdate max reject otherwise valid responses
4376 caused by either OCSP responder or client clock inaccuracy. Instead
4377 we allow thisUpdate and nextUpdate to fall within a certain period of
4378 the current time. The age of the response can also optionally be
4379 checked. Two new options -validity_period and -status_age added to
4383 *) If signature or public key algorithm is unrecognized print out its
4384 OID rather that just UNKNOWN.
4387 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4388 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4389 ID to be generated from the issuer certificate alone which can then be
4390 passed to OCSP_id_issuer_cmp().
4393 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4394 ASN1 modules to export functions returning ASN1_ITEM pointers
4395 instead of the ASN1_ITEM structures themselves. This adds several
4396 new macros which allow the underlying ASN1 function/structure to
4397 be accessed transparently. As a result code should not use ASN1_ITEM
4398 references directly (such as &X509_it) but instead use the relevant
4399 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4400 use of the new ASN1 code on platforms where exporting structures
4401 is problematical (for example in shared libraries) but exporting
4402 functions returning pointers to structures is not.
4405 *) Add support for overriding the generation of SSL/TLS session IDs.
4406 These callbacks can be registered either in an SSL_CTX or per SSL.
4407 The purpose of this is to allow applications to control, if they wish,
4408 the arbitrary values chosen for use as session IDs, particularly as it
4409 can be useful for session caching in multiple-server environments. A
4410 command-line switch for testing this (and any client code that wishes
4411 to use such a feature) has been added to "s_server".
4412 [Geoff Thorpe, Lutz Jaenicke]
4414 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4415 of the form '#if defined(...) || defined(...) || ...' and
4416 '#if !defined(...) && !defined(...) && ...'. This also avoids
4417 the growing number of special cases it was previously handling.
4420 *) Make all configuration macros available for application by making
4421 sure they are available in opensslconf.h, by giving them names starting
4422 with "OPENSSL_" to avoid conflicts with other packages and by making
4423 sure e_os2.h will cover all platform-specific cases together with
4425 Additionally, it is now possible to define configuration/platform-
4426 specific names (called "system identities"). In the C code, these
4427 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4428 macro with the name beginning with "OPENSSL_SYS_", which is determined
4429 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4433 *) New option -set_serial to 'req' and 'x509' this allows the serial
4434 number to use to be specified on the command line. Previously self
4435 signed certificates were hard coded with serial number 0 and the
4436 CA options of 'x509' had to use a serial number in a file which was
4440 *) New options to 'ca' utility to support V2 CRL entry extensions.
4441 Currently CRL reason, invalidity date and hold instruction are
4442 supported. Add new CRL extensions to V3 code and some new objects.
4445 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4446 disable standard block padding (aka PKCS#5 padding) in the EVP
4447 API, which was previously mandatory. This means that the data is
4448 not padded in any way and so the total length much be a multiple
4449 of the block size, otherwise an error occurs.
4452 *) Initial (incomplete) OCSP SSL support.
4455 *) New function OCSP_parse_url(). This splits up a URL into its host,
4456 port and path components: primarily to parse OCSP URLs. New -url
4457 option to ocsp utility.
4460 *) New nonce behavior. The return value of OCSP_check_nonce() now
4461 reflects the various checks performed. Applications can decide
4462 whether to tolerate certain situations such as an absent nonce
4463 in a response when one was present in a request: the ocsp application
4464 just prints out a warning. New function OCSP_add1_basic_nonce()
4465 this is to allow responders to include a nonce in a response even if
4466 the request is nonce-less.
4469 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4470 skipped when using openssl x509 multiple times on a single input file,
4471 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4474 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4475 set string type: to handle setting ASN1_TIME structures. Fix ca
4476 utility to correctly initialize revocation date of CRLs.
4479 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4480 the clients preferred ciphersuites and rather use its own preferences.
4481 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4482 Internet Explorer by ensuring unchanged hash method during stepup.
4483 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4486 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4487 to aes and add a new 'exist' option to print out symbols that don't
4491 *) Additional options to ocsp utility to allow flags to be set and
4492 additional certificates supplied.
4495 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4496 OCSP client a number of certificate to only verify the response
4500 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4501 handle the new API. Currently only ECB, CBC modes supported. Add new
4504 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4505 Encryption Standard (AES) Ciphersuites for Transport Layer
4506 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4507 not enabled by default and were not part of the "ALL" ciphersuite
4508 alias because they were not yet official; they could be
4509 explicitly requested by specifying the "AESdraft" ciphersuite
4510 group alias. In the final release of OpenSSL 0.9.7, the group
4511 alias is called "AES" and is part of "ALL".)
4512 [Ben Laurie, Steve Henson, Bodo Moeller]
4514 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4515 request to response.
4518 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4519 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4520 extract information from a certificate request. OCSP_response_create()
4521 creates a response and optionally adds a basic response structure.
4522 OCSP_basic_add1_status() adds a complete single response to a basic
4523 response and returns the OCSP_SINGLERESP structure just added (to allow
4524 extensions to be included for example). OCSP_basic_add1_cert() adds a
4525 certificate to a basic response and OCSP_basic_sign() signs a basic
4526 response with various flags. New helper functions ASN1_TIME_check()
4527 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4528 (converts ASN1_TIME to GeneralizedTime).
4531 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4532 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4533 structure from a certificate. X509_pubkey_digest() digests the public_key
4534 contents: this is used in various key identifiers.
4537 *) Make sk_sort() tolerate a NULL argument.
4538 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4540 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4541 passed by the function are trusted implicitly. If any of them signed the
4542 response then it is assumed to be valid and is not verified.
4545 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4546 to data. This was previously part of the PKCS7 ASN1 code. This
4547 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4548 [Steve Henson, reported by Kenneth R. Robinette
4549 <support@securenetterm.com>]
4551 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4552 routines: without these tracing memory leaks is very painful.
4553 Fix leaks in PKCS12 and PKCS7 routines.
4556 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4557 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4558 effectively meant GeneralizedTime would never be used. Now it
4559 is initialised to -1 but X509_time_adj() now has to check the value
4560 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4561 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4562 [Steve Henson, reported by Kenneth R. Robinette
4563 <support@securenetterm.com>]
4565 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4566 result in a zero length in the ASN1_INTEGER structure which was
4567 not consistent with the structure when d2i_ASN1_INTEGER() was used
4568 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4569 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4570 where it did not print out a minus for negative ASN1_INTEGER.
4573 *) Add summary printout to ocsp utility. The various functions which
4574 convert status values to strings have been renamed to:
4575 OCSP_response_status_str(), OCSP_cert_status_str() and
4576 OCSP_crl_reason_str() and are no longer static. New options
4577 to verify nonce values and to disable verification. OCSP response
4578 printout format cleaned up.
4581 *) Add additional OCSP certificate checks. These are those specified
4582 in RFC2560. This consists of two separate checks: the CA of the
4583 certificate being checked must either be the OCSP signer certificate
4584 or the issuer of the OCSP signer certificate. In the latter case the
4585 OCSP signer certificate must contain the OCSP signing extended key
4586 usage. This check is performed by attempting to match the OCSP
4587 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4588 in the OCSP_CERTID structures of the response.
4591 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4592 and related routines. This uses the standard OpenSSL certificate
4593 verify routines to perform initial checks (just CA validity) and
4594 to obtain the certificate chain. Then additional checks will be
4595 performed on the chain. Currently the root CA is checked to see
4596 if it is explicitly trusted for OCSP signing. This is used to set
4597 a root CA as a global signing root: that is any certificate that
4598 chains to that CA is an acceptable OCSP signing certificate.
4601 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4602 extensions from a separate configuration file.
4603 As when reading extensions from the main configuration file,
4604 the '-extensions ...' option may be used for specifying the
4606 [Massimiliano Pala <madwolf@comune.modena.it>]
4608 *) New OCSP utility. Allows OCSP requests to be generated or
4609 read. The request can be sent to a responder and the output
4610 parsed, outputed or printed in text form. Not complete yet:
4611 still needs to check the OCSP response validity.
4614 *) New subcommands for 'openssl ca':
4615 'openssl ca -status <serial>' prints the status of the cert with
4616 the given serial number (according to the index file).
4617 'openssl ca -updatedb' updates the expiry status of certificates
4619 [Massimiliano Pala <madwolf@comune.modena.it>]
4621 *) New '-newreq-nodes' command option to CA.pl. This is like
4622 '-newreq', but calls 'openssl req' with the '-nodes' option
4623 so that the resulting key is not encrypted.
4624 [Damien Miller <djm@mindrot.org>]
4626 *) New configuration for the GNU Hurd.
4627 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4629 *) Initial code to implement OCSP basic response verify. This
4630 is currently incomplete. Currently just finds the signer's
4631 certificate and verifies the signature on the response.
4634 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4635 value of OPENSSLDIR. This is available via the new '-d' option
4636 to 'openssl version', and is also included in 'openssl version -a'.
4639 *) Allowing defining memory allocation callbacks that will be given
4640 file name and line number information in additional arguments
4641 (a const char* and an int). The basic functionality remains, as
4642 well as the original possibility to just replace malloc(),
4643 realloc() and free() by functions that do not know about these
4644 additional arguments. To register and find out the current
4645 settings for extended allocation functions, the following
4646 functions are provided:
4648 CRYPTO_set_mem_ex_functions
4649 CRYPTO_set_locked_mem_ex_functions
4650 CRYPTO_get_mem_ex_functions
4651 CRYPTO_get_locked_mem_ex_functions
4653 These work the same way as CRYPTO_set_mem_functions and friends.
4654 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4655 extended allocation function is enabled.
4656 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4657 a conventional allocation function is enabled.
4658 [Richard Levitte, Bodo Moeller]
4660 *) Finish off removing the remaining LHASH function pointer casts.
4661 There should no longer be any prototype-casting required when using
4662 the LHASH abstraction, and any casts that remain are "bugs". See
4663 the callback types and macros at the head of lhash.h for details
4664 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4667 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4668 If /dev/[u]random devices are not available or do not return enough
4669 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4671 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4672 /etc/entropy will be queried once each in this sequence, quering stops
4673 when enough entropy was collected without querying more sockets.
4676 *) Change the Unix RAND_poll() variant to be able to poll several
4677 random devices, as specified by DEVRANDOM, until a sufficient amount
4678 of data has been collected. We spend at most 10 ms on each file
4679 (select timeout) and read in non-blocking mode. DEVRANDOM now
4680 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4681 (previously it was just the string "/dev/urandom"), so on typical
4682 platforms the 10 ms delay will never occur.
4683 Also separate out the Unix variant to its own file, rand_unix.c.
4684 For VMS, there's a currently-empty rand_vms.c.
4687 *) Move OCSP client related routines to ocsp_cl.c. These
4688 provide utility functions which an application needing
4689 to issue a request to an OCSP responder and analyse the
4690 response will typically need: as opposed to those which an
4691 OCSP responder itself would need which will be added later.
4693 OCSP_request_sign() signs an OCSP request with an API similar
4694 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4695 response. OCSP_response_get1_basic() extracts basic response
4696 from response. OCSP_resp_find_status(): finds and extracts status
4697 information from an OCSP_CERTID structure (which will be created
4698 when the request structure is built). These are built from lower
4699 level functions which work on OCSP_SINGLERESP structures but
4700 wont normally be used unless the application wishes to examine
4701 extensions in the OCSP response for example.
4703 Replace nonce routines with a pair of functions.
4704 OCSP_request_add1_nonce() adds a nonce value and optionally
4705 generates a random value. OCSP_check_nonce() checks the
4706 validity of the nonce in an OCSP response.
4709 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4710 This doesn't copy the supplied OCSP_CERTID and avoids the
4711 need to free up the newly created id. Change return type
4712 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4713 This can then be used to add extensions to the request.
4714 Deleted OCSP_request_new(), since most of its functionality
4715 is now in OCSP_REQUEST_new() (and the case insensitive name
4716 clash) apart from the ability to set the request name which
4717 will be added elsewhere.
4720 *) Update OCSP API. Remove obsolete extensions argument from
4721 various functions. Extensions are now handled using the new
4722 OCSP extension code. New simple OCSP HTTP function which
4723 can be used to send requests and parse the response.
4726 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4727 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4728 uses the special reorder version of SET OF to sort the attributes
4729 and reorder them to match the encoded order. This resolves a long
4730 standing problem: a verify on a PKCS7 structure just after signing
4731 it used to fail because the attribute order did not match the
4732 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4733 it uses the received order. This is necessary to tolerate some broken
4734 software that does not order SET OF. This is handled by encoding
4735 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4736 to produce the required SET OF.
4739 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4740 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4741 files to get correct declarations of the ASN.1 item variables.
4744 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4745 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4746 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4747 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4748 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4749 ASN1_ITEM and no wrapper functions.
4752 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4753 replace the old function pointer based I/O routines. Change most of
4754 the *_d2i_bio() and *_d2i_fp() functions to use these.
4757 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4758 lines, recognice more "algorithms" that can be deselected, and make
4759 it complain about algorithm deselection that isn't recognised.
4762 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4763 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4764 to use new functions. Add NO_ASN1_OLD which can be set to remove
4765 some old style ASN1 functions: this can be used to determine if old
4766 code will still work when these eventually go away.
4769 *) New extension functions for OCSP structures, these follow the
4770 same conventions as certificates and CRLs.
4773 *) New function X509V3_add1_i2d(). This automatically encodes and
4774 adds an extension. Its behaviour can be customised with various
4775 flags to append, replace or delete. Various wrappers added for
4776 certifcates and CRLs.
4779 *) Fix to avoid calling the underlying ASN1 print routine when
4780 an extension cannot be parsed. Correct a typo in the
4781 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4784 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4785 entries for variables.
4788 *) Add functionality to apps/openssl.c for detecting locking
4789 problems: As the program is single-threaded, all we have
4790 to do is register a locking callback using an array for
4791 storing which locks are currently held by the program.
4794 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4795 SSL_get_ex_data_X509_STORE_idx(), which is used in
4796 ssl_verify_cert_chain() and thus can be called at any time
4797 during TLS/SSL handshakes so that thread-safety is essential.
4798 Unfortunately, the ex_data design is not at all suited
4799 for multi-threaded use, so it probably should be abolished.
4802 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4803 [Broadcom, tweaked and integrated by Geoff Thorpe]
4805 *) Move common extension printing code to new function
4806 X509V3_print_extensions(). Reorganise OCSP print routines and
4807 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4810 *) New function X509_signature_print() to remove duplication in some
4814 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4815 set (this was treated exactly the same as SET OF previously). This
4816 is used to reorder the STACK representing the structure to match the
4817 encoding. This will be used to get round a problem where a PKCS7
4818 structure which was signed could not be verified because the STACK
4819 order did not reflect the encoded order.
4822 *) Reimplement the OCSP ASN1 module using the new code.
4825 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4826 for its ASN1 operations. The old style function pointers still exist
4827 for now but they will eventually go away.
4830 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4831 completely replaces the old ASN1 functionality with a table driven
4832 encoder and decoder which interprets an ASN1_ITEM structure describing
4833 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4834 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4835 has also been converted to the new form.
4838 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4839 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4840 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4841 for negative moduli.
4844 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4845 of not touching the result's sign bit.
4848 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4852 *) Changed the LHASH code to use prototypes for callbacks, and created
4853 macros to declare and implement thin (optionally static) functions
4854 that provide type-safety and avoid function pointer casting for the
4855 type-specific callbacks.
4858 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4860 [Veers Staats <staatsvr@asc.hpc.mil>,
4861 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4863 *) Reformat the FAQ so the different questions and answers can be divided
4864 in sections depending on the subject.
4867 *) Have the zlib compression code load ZLIB.DLL dynamically under
4871 *) New function BN_mod_sqrt for computing square roots modulo a prime
4872 (using the probabilistic Tonelli-Shanks algorithm unless
4873 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4874 be handled deterministically).
4875 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4877 *) Make BN_mod_inverse faster by explicitly handling small quotients
4878 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4879 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4882 *) New function BN_kronecker.
4885 *) Fix BN_gcd so that it works on negative inputs; the result is
4886 positive unless both parameters are zero.
4887 Previously something reasonably close to an infinite loop was
4888 possible because numbers could be growing instead of shrinking
4889 in the implementation of Euclid's algorithm.
4892 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4893 sign of the number in question.
4895 Fix BN_is_word(a,w) to work correctly for w == 0.
4897 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4898 because its test if the absolute value of 'a' equals 'w'.
4899 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4900 it exists mostly for use in the implementations of BN_is_zero(),
4901 BN_is_one(), and BN_is_word().
4904 *) New function BN_swap.
4907 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4908 the exponentiation functions are more likely to produce reasonable
4909 results on negative inputs.
4912 *) Change BN_mod_mul so that the result is always non-negative.
4913 Previously, it could be negative if one of the factors was negative;
4914 I don't think anyone really wanted that behaviour.
4917 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4918 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4919 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4920 and add new functions:
4929 BN_mod_lshift1_quick
4933 These functions always generate non-negative results.
4935 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4936 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4938 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4939 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4940 be reduced modulo m.
4941 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4944 The following entry accidentily appeared in the CHANGES file
4945 distributed with OpenSSL 0.9.7. The modifications described in
4946 it do *not* apply to OpenSSL 0.9.7.
4948 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4949 was actually never needed) and in BN_mul(). The removal in BN_mul()
4950 required a small change in bn_mul_part_recursive() and the addition
4951 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4952 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4953 bn_sub_words() and bn_add_words() except they take arrays with
4958 *) In 'openssl passwd', verify passwords read from the terminal
4959 unless the '-salt' option is used (which usually means that
4960 verification would just waste user's time since the resulting
4961 hash is going to be compared with some given password hash)
4962 or the new '-noverify' option is used.
4964 This is an incompatible change, but it does not affect
4965 non-interactive use of 'openssl passwd' (passwords on the command
4966 line, '-stdin' option, '-in ...' option) and thus should not
4970 *) Remove all references to RSAref, since there's no more need for it.
4973 *) Make DSO load along a path given through an environment variable
4974 (SHLIB_PATH) with shl_load().
4977 *) Constify the ENGINE code as a result of BIGNUM constification.
4978 Also constify the RSA code and most things related to it. In a
4979 few places, most notable in the depth of the ASN.1 code, ugly
4980 casts back to non-const were required (to be solved at a later
4984 *) Make it so the openssl application has all engines loaded by default.
4987 *) Constify the BIGNUM routines a little more.
4990 *) Add the following functions:
4992 ENGINE_load_cswift()
4994 ENGINE_load_atalla()
4996 ENGINE_load_builtin_engines()
4998 That way, an application can itself choose if external engines that
4999 are built-in in OpenSSL shall ever be used or not. The benefit is
5000 that applications won't have to be linked with libdl or other dso
5001 libraries unless it's really needed.
5003 Changed 'openssl engine' to load all engines on demand.
5004 Changed the engine header files to avoid the duplication of some
5005 declarations (they differed!).
5008 *) 'openssl engine' can now list capabilities.
5011 *) Better error reporting in 'openssl engine'.
5014 *) Never call load_dh_param(NULL) in s_server.
5017 *) Add engine application. It can currently list engines by name and
5018 identity, and test if they are actually available.
5021 *) Improve RPM specification file by forcing symbolic linking and making
5022 sure the installed documentation is also owned by root.root.
5023 [Damien Miller <djm@mindrot.org>]
5025 *) Give the OpenSSL applications more possibilities to make use of
5026 keys (public as well as private) handled by engines.
5029 *) Add OCSP code that comes from CertCo.
5032 *) Add VMS support for the Rijndael code.
5035 *) Added untested support for Nuron crypto accelerator.
5038 *) Add support for external cryptographic devices. This code was
5039 previously distributed separately as the "engine" branch.
5040 [Geoff Thorpe, Richard Levitte]
5042 *) Rework the filename-translation in the DSO code. It is now possible to
5043 have far greater control over how a "name" is turned into a filename
5044 depending on the operating environment and any oddities about the
5045 different shared library filenames on each system.
5048 *) Support threads on FreeBSD-elf in Configure.
5051 *) Fix for SHA1 assembly problem with MASM: it produces
5052 warnings about corrupt line number information when assembling
5053 with debugging information. This is caused by the overlapping
5055 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5058 NCONF_get_number() has no error checking at all. As a replacement,
5059 NCONF_get_number_e() is defined (_e for "error checking") and is
5060 promoted strongly. The old NCONF_get_number is kept around for
5061 binary backward compatibility.
5062 Make it possible for methods to load from something other than a BIO,
5063 by providing a function pointer that is given a name instead of a BIO.
5064 For example, this could be used to load configuration data from an
5068 *) Fix for non blocking accept BIOs. Added new I/O special reason
5069 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5070 with non blocking I/O was not possible because no retry code was
5071 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5075 *) Added the beginnings of Rijndael support.
5078 *) Fix for bug in DirectoryString mask setting. Add support for
5079 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5080 to allow certificate printing to more controllable, additional
5081 'certopt' option to 'x509' to allow new printing options to be
5085 *) Clean old EAY MD5 hack from e_os.h.
5088 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5090 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5091 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5092 [Joe Orton, Steve Henson]
5094 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5096 *) Fix additional bug revealed by the NISCC test suite:
5098 Stop bug triggering large recursion when presented with
5099 certain ASN.1 tags (CVE-2003-0851)
5102 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5104 *) Fix various bugs revealed by running the NISCC test suite:
5106 Stop out of bounds reads in the ASN1 code when presented with
5107 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5109 If verify callback ignores invalid public key errors don't try to check
5110 certificate signature with the NULL public key.
5114 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5115 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5119 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5120 extra data after the compression methods not only for TLS 1.0
5121 but also for SSL 3.0 (as required by the specification).
5122 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5124 *) Change X509_certificate_type() to mark the key as exported/exportable
5125 when it's 512 *bits* long, not 512 bytes.
5128 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5130 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5131 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5132 a protocol version number mismatch like a decryption error
5133 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5136 *) Turn on RSA blinding by default in the default implementation
5137 to avoid a timing attack. Applications that don't want it can call
5138 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5139 They would be ill-advised to do so in most cases.
5140 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5142 *) Change RSA blinding code so that it works when the PRNG is not
5143 seeded (in this case, the secret RSA exponent is abused as
5144 an unpredictable seed -- if it is not unpredictable, there
5145 is no point in blinding anyway). Make RSA blinding thread-safe
5146 by remembering the creator's thread ID in rsa->blinding and
5147 having all other threads use local one-time blinding factors
5148 (this requires more computation than sharing rsa->blinding, but
5149 avoids excessive locking; and if an RSA object is not shared
5150 between threads, blinding will still be very fast).
5153 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5155 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5156 via timing by performing a MAC computation even if incorrrect
5157 block cipher padding has been found. This is a countermeasure
5158 against active attacks where the attacker has to distinguish
5159 between bad padding and a MAC verification error. (CVE-2003-0078)
5161 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5162 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5163 Martin Vuagnoux (EPFL, Ilion)]
5165 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5167 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5168 memory from it's contents. This is done with a counter that will
5169 place alternating values in each byte. This can be used to solve
5170 two issues: 1) the removal of calls to memset() by highly optimizing
5171 compilers, and 2) cleansing with other values than 0, since those can
5172 be read through on certain media, for example a swap space on disk.
5175 *) Bugfix: client side session caching did not work with external caching,
5176 because the session->cipher setting was not restored when reloading
5177 from the external cache. This problem was masked, when
5178 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5179 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5182 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5183 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5184 [Zeev Lieber <zeev-l@yahoo.com>]
5186 *) Undo an undocumented change introduced in 0.9.6e which caused
5187 repeated calls to OpenSSL_add_all_ciphers() and
5188 OpenSSL_add_all_digests() to be ignored, even after calling
5192 *) Change the default configuration reader to deal with last line not
5193 being properly terminated.
5196 *) Change X509_NAME_cmp() so it applies the special rules on handling
5197 DN values that are of type PrintableString, as well as RDNs of type
5198 emailAddress where the value has the type ia5String.
5199 [stefank@valicert.com via Richard Levitte]
5201 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5202 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5203 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5204 the bitwise-OR of the two for use by the majority of applications
5205 wanting this behaviour, and update the docs. The documented
5206 behaviour and actual behaviour were inconsistent and had been
5207 changing anyway, so this is more a bug-fix than a behavioural
5209 [Geoff Thorpe, diagnosed by Nadav Har'El]
5211 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5212 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5215 *) Fix initialization code race conditions in
5216 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5217 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5218 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5219 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5220 ssl2_get_cipher_by_char(),
5221 ssl3_get_cipher_by_char().
5222 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5224 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5225 the cached sessions are flushed, as the remove_cb() might use ex_data
5226 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5227 (see [openssl.org #212]).
5228 [Geoff Thorpe, Lutz Jaenicke]
5230 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5231 length, instead of the encoding length to d2i_ASN1_OBJECT.
5234 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5236 *) [In 0.9.6g-engine release:]
5237 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5238 [Lynn Gazis <lgazis@rainbow.com>]
5240 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5242 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5243 and get fix the header length calculation.
5244 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5245 Alon Kantor <alonk@checkpoint.com> (and others),
5248 *) Use proper error handling instead of 'assertions' in buffer
5249 overflow checks added in 0.9.6e. This prevents DoS (the
5250 assertions could call abort()).
5251 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5253 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5255 *) Add various sanity checks to asn1_get_length() to reject
5256 the ASN1 length bytes if they exceed sizeof(long), will appear
5257 negative or the content length exceeds the length of the
5259 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5261 *) Fix cipher selection routines: ciphers without encryption had no flags
5262 for the cipher strength set and where therefore not handled correctly
5263 by the selection routines (PR #130).
5266 *) Fix EVP_dsa_sha macro.
5270 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5271 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5272 that was added in OpenSSL 0.9.6d.
5274 As the countermeasure turned out to be incompatible with some
5275 broken SSL implementations, the new option is part of SSL_OP_ALL.
5276 SSL_OP_ALL is usually employed when compatibility with weird SSL
5277 implementations is desired (e.g. '-bugs' option to 's_client' and
5278 's_server'), so the new option is automatically set in many
5282 *) Changes in security patch:
5284 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5285 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5286 Air Force Materiel Command, USAF, under agreement number
5289 *) Add various sanity checks to asn1_get_length() to reject
5290 the ASN1 length bytes if they exceed sizeof(long), will appear
5291 negative or the content length exceeds the length of the
5292 supplied buffer. (CVE-2002-0659)
5293 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5295 *) Assertions for various potential buffer overflows, not known to
5297 [Ben Laurie (CHATS)]
5299 *) Various temporary buffers to hold ASCII versions of integers were
5300 too small for 64 bit platforms. (CVE-2002-0655)
5301 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5303 *) Remote buffer overflow in SSL3 protocol - an attacker could
5304 supply an oversized session ID to a client. (CVE-2002-0656)
5305 [Ben Laurie (CHATS)]
5307 *) Remote buffer overflow in SSL2 protocol - an attacker could
5308 supply an oversized client master key. (CVE-2002-0656)
5309 [Ben Laurie (CHATS)]
5311 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5313 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5314 encoded as NULL) with id-dsa-with-sha1.
5315 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5317 *) Check various X509_...() return values in apps/req.c.
5318 [Nils Larsch <nla@trustcenter.de>]
5320 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5321 an end-of-file condition would erronously be flagged, when the CRLF
5322 was just at the end of a processed block. The bug was discovered when
5323 processing data through a buffering memory BIO handing the data to a
5324 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5325 <ptsekov@syntrex.com> and Nedelcho Stanev.
5328 *) Implement a countermeasure against a vulnerability recently found
5329 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5330 before application data chunks to avoid the use of known IVs
5331 with data potentially chosen by the attacker.
5334 *) Fix length checks in ssl3_get_client_hello().
5337 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5338 to prevent ssl3_read_internal() from incorrectly assuming that
5339 ssl3_read_bytes() found application data while handshake
5340 processing was enabled when in fact s->s3->in_read_app_data was
5341 merely automatically cleared during the initial handshake.
5342 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5344 *) Fix object definitions for Private and Enterprise: they were not
5345 recognized in their shortname (=lowercase) representation. Extend
5346 obj_dat.pl to issue an error when using undefined keywords instead
5347 of silently ignoring the problem (Svenning Sorensen
5348 <sss@sss.dnsalias.net>).
5351 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5352 generators, i.e. generators other than 2 and 5. (Previously, the
5353 code did not properly initialise the 'add' and 'rem' values to
5354 BN_generate_prime().)
5356 In the new general case, we do not insist that 'generator' is
5357 actually a primitive root: This requirement is rather pointless;
5358 a generator of the order-q subgroup is just as good, if not
5362 *) Map new X509 verification errors to alerts. Discovered and submitted by
5363 Tom Wu <tom@arcot.com>.
5366 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5367 returning non-zero before the data has been completely received
5368 when using non-blocking I/O.
5369 [Bodo Moeller; problem pointed out by John Hughes]
5371 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5372 [Ben Laurie, Lutz Jaenicke]
5374 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5375 Yoram Zahavi <YoramZ@gilian.com>).
5378 *) Add information about CygWin 1.3 and on, and preserve proper
5379 configuration for the versions before that.
5380 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5382 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5383 check whether we deal with a copy of a session and do not delete from
5384 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5385 <izhar@checkpoint.com>.
5388 *) Do not store session data into the internal session cache, if it
5389 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5390 flag is set). Proposed by Aslam <aslam@funk.com>.
5393 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5397 *) [In 0.9.6d-engine release:]
5398 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5399 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5401 *) Add the configuration target linux-s390x.
5402 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5404 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5405 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5406 variable as an indication that a ClientHello message has been
5407 received. As the flag value will be lost between multiple
5408 invocations of ssl3_accept when using non-blocking I/O, the
5409 function may not be aware that a handshake has actually taken
5410 place, thus preventing a new session from being added to the
5413 To avoid this problem, we now set s->new_session to 2 instead of
5414 using a local variable.
5415 [Lutz Jaenicke, Bodo Moeller]
5417 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5418 if the SSL_R_LENGTH_MISMATCH error is detected.
5419 [Geoff Thorpe, Bodo Moeller]
5421 *) New 'shared_ldflag' column in Configure platform table.
5424 *) Fix EVP_CIPHER_mode macro.
5425 ["Dan S. Camper" <dan@bti.net>]
5427 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5428 type, we must throw them away by setting rr->length to 0.
5429 [D P Chang <dpc@qualys.com>]
5431 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5433 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5434 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5435 worked incorrectly for those cases where range = 10..._2 and
5436 3*range is two bits longer than range.)
5439 *) Only add signing time to PKCS7 structures if it is not already
5443 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5444 OBJ_ld_ce should be OBJ_id_ce.
5445 Also some ip-pda OIDs in crypto/objects/objects.txt were
5446 incorrect (cf. RFC 3039).
5447 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5449 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5450 returns early because it has nothing to do.
5451 [Andy Schneider <andy.schneider@bjss.co.uk>]
5453 *) [In 0.9.6c-engine release:]
5454 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5455 [Andy Schneider <andy.schneider@bjss.co.uk>]
5457 *) [In 0.9.6c-engine release:]
5458 Add support for Cryptographic Appliance's keyserver technology.
5459 (Use engine 'keyclient')
5460 [Cryptographic Appliances and Geoff Thorpe]
5462 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5463 is called via tools/c89.sh because arguments have to be
5464 rearranged (all '-L' options must appear before the first object
5466 [Richard Shapiro <rshapiro@abinitio.com>]
5468 *) [In 0.9.6c-engine release:]
5469 Add support for Broadcom crypto accelerator cards, backported
5471 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5473 *) [In 0.9.6c-engine release:]
5474 Add support for SureWare crypto accelerator cards from
5475 Baltimore Technologies. (Use engine 'sureware')
5476 [Baltimore Technologies and Mark Cox]
5478 *) [In 0.9.6c-engine release:]
5479 Add support for crypto accelerator cards from Accelerated
5480 Encryption Processing, www.aep.ie. (Use engine 'aep')
5481 [AEP Inc. and Mark Cox]
5483 *) Add a configuration entry for gcc on UnixWare.
5484 [Gary Benson <gbenson@redhat.com>]
5486 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5487 messages are stored in a single piece (fixed-length part and
5488 variable-length part combined) and fix various bugs found on the way.
5491 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5492 instead. BIO_gethostbyname() does not know what timeouts are
5493 appropriate, so entries would stay in cache even when they have
5495 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5497 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5498 faced with a pathologically small ClientHello fragment that does
5499 not contain client_version: Instead of aborting with an error,
5500 simply choose the highest available protocol version (i.e.,
5501 TLS 1.0 unless it is disabled). In practice, ClientHello
5502 messages are never sent like this, but this change gives us
5503 strictly correct behaviour at least for TLS.
5506 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5507 never resets s->method to s->ctx->method when called from within
5508 one of the SSL handshake functions.
5509 [Bodo Moeller; problem pointed out by Niko Baric]
5511 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5512 (sent using the client's version number) if client_version is
5513 smaller than the protocol version in use. Also change
5514 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5515 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5516 the client will at least see that alert.
5519 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5523 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5524 client receives HelloRequest while in a handshake.
5525 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5527 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5528 should end in 'break', not 'goto end' which circuments various
5529 cleanups done in state SSL_ST_OK. But session related stuff
5530 must be disabled for SSL_ST_OK in the case that we just sent a
5533 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5534 before just sending a HelloRequest.
5535 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5537 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5538 reveal whether illegal block cipher padding was found or a MAC
5539 verification error occured. (Neither SSLerr() codes nor alerts
5540 are directly visible to potential attackers, but the information
5541 may leak via logfiles.)
5543 Similar changes are not required for the SSL 2.0 implementation
5544 because the number of padding bytes is sent in clear for SSL 2.0,
5545 and the extra bytes are just ignored. However ssl/s2_pkt.c
5546 failed to verify that the purported number of padding bytes is in
5550 *) Add OpenUNIX-8 support including shared libraries
5551 (Boyd Lynn Gerber <gerberb@zenez.com>).
5554 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5555 'wristwatch attack' using huge encoding parameters (cf.
5556 James H. Manger's CRYPTO 2001 paper). Note that the
5557 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5558 encoding parameters and hence was not vulnerable.
5561 *) BN_sqr() bug fix.
5562 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5564 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5565 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5566 followed by modular reduction.
5567 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5569 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5570 equivalent based on BN_pseudo_rand() instead of BN_rand().
5573 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5574 This function was broken, as the check for a new client hello message
5575 to handle SGC did not allow these large messages.
5576 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5579 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5582 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5583 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5586 *) Rework the configuration and shared library support for Tru64 Unix.
5587 The configuration part makes use of modern compiler features and
5588 still retains old compiler behavior for those that run older versions
5589 of the OS. The shared library support part includes a variant that
5590 uses the RPATH feature, and is available through the special
5591 configuration target "alpha-cc-rpath", which will never be selected
5593 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5595 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5596 with the same message size as in ssl3_get_certificate_request().
5597 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5598 messages might inadvertently be reject as too long.
5599 [Petr Lampa <lampa@fee.vutbr.cz>]
5601 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5604 *) Modified SSL library such that the verify_callback that has been set
5605 specificly for an SSL object with SSL_set_verify() is actually being
5606 used. Before the change, a verify_callback set with this function was
5607 ignored and the verify_callback() set in the SSL_CTX at the time of
5608 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5609 to allow the necessary settings.
5612 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5613 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5614 done automatically (in contradiction to the requirements of the C
5615 standard). This made problems when used from OpenSSH.
5618 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5619 dh->length and always used
5621 BN_rand_range(priv_key, dh->p).
5623 BN_rand_range() is not necessary for Diffie-Hellman, and this
5624 specific range makes Diffie-Hellman unnecessarily inefficient if
5625 dh->length (recommended exponent length) is much smaller than the
5626 length of dh->p. We could use BN_rand_range() if the order of
5627 the subgroup was stored in the DH structure, but we only have
5632 BN_rand(priv_key, l, ...)
5634 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5640 RSA_eay_public_encrypt
5641 RSA_eay_private_decrypt
5642 RSA_eay_private_encrypt (signing)
5643 RSA_eay_public_decrypt (signature verification)
5645 (default implementations for RSA_public_encrypt,
5646 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5647 always reject numbers >= n.
5650 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5651 to synchronize access to 'locking_thread'. This is necessary on
5652 systems where access to 'locking_thread' (an 'unsigned long'
5653 variable) is not atomic.
5656 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5657 *before* setting the 'crypto_lock_rand' flag. The previous code had
5658 a race condition if 0 is a valid thread ID.
5659 [Travis Vitek <vitek@roguewave.com>]
5661 *) Add support for shared libraries under Irix.
5662 [Albert Chin-A-Young <china@thewrittenword.com>]
5664 *) Add configuration option to build on Linux on both big-endian and
5666 [Ralf Baechle <ralf@uni-koblenz.de>]
5668 *) Add the possibility to create shared libraries on HP-UX.
5671 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5673 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5674 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5675 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5676 PRNG state recovery was possible based on the output of
5677 one PRNG request appropriately sized to gain knowledge on
5678 'md' followed by enough consecutive 1-byte PRNG requests
5679 to traverse all of 'state'.
5681 1. When updating 'md_local' (the current thread's copy of 'md')
5682 during PRNG output generation, hash all of the previous
5683 'md_local' value, not just the half used for PRNG output.
5685 2. Make the number of bytes from 'state' included into the hash
5686 independent from the number of PRNG bytes requested.
5688 The first measure alone would be sufficient to avoid
5689 Markku-Juhani's attack. (Actually it had never occurred
5690 to me that the half of 'md_local' used for chaining was the
5691 half from which PRNG output bytes were taken -- I had always
5692 assumed that the secret half would be used.) The second
5693 measure makes sure that additional data from 'state' is never
5694 mixed into 'md_local' in small portions; this heuristically
5695 further strengthens the PRNG.
5698 *) Fix crypto/bn/asm/mips3.s.
5701 *) When only the key is given to "enc", the IV is undefined. Print out
5702 an error message in this case.
5705 *) Handle special case when X509_NAME is empty in X509 printing routines.
5708 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5709 positive and less than q.
5712 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5713 used: it isn't thread safe and the add_lock_callback should handle
5715 [Paul Rose <Paul.Rose@bridge.com>]
5717 *) Verify that incoming data obeys the block size in
5718 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5722 [Ulf Möller, Bodo Möller]
5724 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5725 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5726 when fixing the server behaviour for backwards-compatible 'client
5727 hello' messages. (Note that the attack is impractical against
5728 SSL 3.0 and TLS 1.0 anyway because length and version checking
5729 means that the probability of guessing a valid ciphertext is
5730 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5733 Before 0.9.5, the countermeasure (hide the error by generating a
5734 random 'decryption result') did not work properly because
5735 ERR_clear_error() was missing, meaning that SSL_get_error() would
5736 detect the supposedly ignored error.
5738 Both problems are now fixed.
5741 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5742 (previously it was 1024).
5745 *) Fix for compatibility mode trust settings: ignore trust settings
5746 unless some valid trust or reject settings are present.
5749 *) Fix for blowfish EVP: its a variable length cipher.
5752 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5753 parameters in DSA public key structures and return an error in the
5754 DSA routines if parameters are absent.
5757 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5758 in the current directory if neither $RANDFILE nor $HOME was set.
5759 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5760 caused some confusion to Windows users who haven't defined $HOME.
5761 Thus RAND_file_name() is changed again: e_os.h can define a
5762 DEFAULT_HOME, which will be used if $HOME is not set.
5763 For Windows, we use "C:"; on other platforms, we still require
5764 environment variables.
5766 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5767 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5768 having multiple threads call RAND_poll() concurrently.
5771 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5772 combination of a flag and a thread ID variable.
5773 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5774 flag), *other* threads can enter ssleay_add_bytes without obeying
5775 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5776 that they do not hold after the first thread unsets add_do_not_lock).
5779 *) Change bctest again: '-x' expressions are not available in all
5783 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5785 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5786 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5788 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5789 the default extension for executables, if any. Also, make the perl
5790 scripts that use symlink() to test if it really exists and use "cp"
5791 if it doesn't. All this made OpenSSL compilable and installable in
5795 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5796 If SEQUENCE is length is indefinite just set c->slen to the total
5797 amount of data available.
5798 [Steve Henson, reported by shige@FreeBSD.org]
5799 [This change does not apply to 0.9.7.]
5801 *) Change bctest to avoid here-documents inside command substitution
5802 (workaround for FreeBSD /bin/sh bug).
5803 For compatibility with Ultrix, avoid shell functions (introduced
5804 in the bctest version that searches along $PATH).
5807 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5808 with des_encrypt() defined on some operating systems, like Solaris
5812 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5813 On the Importance of Eliminating Errors in Cryptographic
5814 Computations, J. Cryptology 14 (2001) 2, 101-119,
5815 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5818 *) MIPS assembler BIGNUM division bug fix.
5821 *) Disabled incorrect Alpha assembler code.
5824 *) Fix PKCS#7 decode routines so they correctly update the length
5825 after reading an EOC for the EXPLICIT tag.
5827 [This change does not apply to 0.9.7.]
5829 *) Fix bug in PKCS#12 key generation routines. This was triggered
5830 if a 3DES key was generated with a 0 initial byte. Include
5831 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5832 (but broken) behaviour.
5835 *) Enhance bctest to search for a working bc along $PATH and print
5837 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5839 *) Fix memory leaks in err.c: free err_data string if necessary;
5840 don't write to the wrong index in ERR_set_error_data.
5843 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5847 *) Replace rdtsc with _emit statements for VC++ version 5.
5848 [Jeremy Cooper <jeremy@baymoo.org>]
5850 *) Make it possible to reuse SSLv2 sessions.
5853 *) In copy_email() check for >= 0 as a return value for
5854 X509_NAME_get_index_by_NID() since 0 is a valid index.
5855 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5857 *) Avoid coredump with unsupported or invalid public keys by checking if
5858 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5859 PKCS7_verify() fails with non detached data.
5862 *) Don't use getenv in library functions when run as setuid/setgid.
5863 New function OPENSSL_issetugid().
5866 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5867 due to incorrect handling of multi-threading:
5869 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5871 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5873 3. Count how many times MemCheck_off() has been called so that
5874 nested use can be treated correctly. This also avoids
5875 inband-signalling in the previous code (which relied on the
5876 assumption that thread ID 0 is impossible).
5879 *) Add "-rand" option also to s_client and s_server.
5882 *) Fix CPU detection on Irix 6.x.
5883 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5884 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5886 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5889 [This change does not apply to 0.9.7.]
5891 *) Use the cached encoding of an X509_NAME structure rather than
5892 copying it. This is apparently the reason for the libsafe "errors"
5893 but the code is actually correct.
5896 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5897 Bleichenbacher's DSA attack.
5898 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5899 to be set and top=0 forces the highest bit to be set; top=-1 is new
5900 and leaves the highest bit random.
5901 [Ulf Moeller, Bodo Moeller]
5903 *) In the NCONF_...-based implementations for CONF_... queries
5904 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5905 a temporary CONF structure with the data component set to NULL
5906 (which gives segmentation faults in lh_retrieve).
5907 Instead, use NULL for the CONF pointer in CONF_get_string and
5908 CONF_get_number (which may use environment variables) and directly
5909 return NULL from CONF_get_section.
5912 *) Fix potential buffer overrun for EBCDIC.
5915 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5916 keyUsage if basicConstraints absent for a CA.
5919 *) Make SMIME_write_PKCS7() write mail header values with a format that
5920 is more generally accepted (no spaces before the semicolon), since
5921 some programs can't parse those values properly otherwise. Also make
5922 sure BIO's that break lines after each write do not create invalid
5926 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5927 macros previously used would not encode an empty SEQUENCE OF
5928 and break the signature.
5930 [This change does not apply to 0.9.7.]
5932 *) Zero the premaster secret after deriving the master secret in
5936 *) Add some EVP_add_digest_alias registrations (as found in
5937 OpenSSL_add_all_digests()) to SSL_library_init()
5938 aka OpenSSL_add_ssl_algorithms(). This provides improved
5939 compatibility with peers using X.509 certificates
5940 with unconventional AlgorithmIdentifier OIDs.
5943 *) Fix for Irix with NO_ASM.
5944 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5946 *) ./config script fixes.
5947 [Ulf Moeller, Richard Levitte]
5949 *) Fix 'openssl passwd -1'.
5952 *) Change PKCS12_key_gen_asc() so it can cope with non null
5953 terminated strings whose length is passed in the passlen
5954 parameter, for example from PEM callbacks. This was done
5955 by adding an extra length parameter to asc2uni().
5956 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5958 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5959 call failed, free the DSA structure.
5962 *) Fix to uni2asc() to cope with zero length Unicode strings.
5963 These are present in some PKCS#12 files.
5966 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5967 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5968 when writing a 32767 byte record.
5969 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5971 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5972 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5974 (RSA objects have a reference count access to which is protected
5975 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5976 so they are meant to be shared between threads.)
5977 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5978 "Reddie, Steven" <Steven.Reddie@ca.com>]
5980 *) Fix a deadlock in CRYPTO_mem_leaks().
5983 *) Use better test patterns in bntest.
5986 *) rand_win.c fix for Borland C.
5989 *) BN_rshift bugfix for n == 0.
5992 *) Add a 'bctest' script that checks for some known 'bc' bugs
5993 so that 'make test' does not abort just because 'bc' is broken.
5996 *) Store verify_result within SSL_SESSION also for client side to
5997 avoid potential security hole. (Re-used sessions on the client side
5998 always resulted in verify_result==X509_V_OK, not using the original
5999 result of the server certificate verification.)
6002 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6003 SSL3_RT_APPLICATION_DATA, return 0.
6004 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6008 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6009 releases, have been re-implemented by renaming the previous
6010 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6011 and ssl3_read_internal, respectively, and adding 'peek' parameters
6012 to them. The new ssl[23]_{read,peek} functions are calls to
6013 ssl[23]_read_internal with the 'peek' flag set appropriately.
6014 A 'peek' parameter has also been added to ssl3_read_bytes, which
6015 does the actual work for ssl3_read_internal.
6018 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6019 the method-specific "init()" handler. Also clean up ex_data after
6020 calling the method-specific "finish()" handler. Previously, this was
6021 happening the other way round.
6024 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6025 The previous value, 12, was not always sufficient for BN_mod_exp().
6028 *) Make sure that shared libraries get the internal name engine with
6029 the full version number and not just 0. This should mark the
6030 shared libraries as not backward compatible. Of course, this should
6031 be changed again when we can guarantee backward binary compatibility.
6034 *) Fix typo in get_cert_by_subject() in by_dir.c
6035 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6037 *) Rework the system to generate shared libraries:
6039 - Make note of the expected extension for the shared libraries and
6040 if there is a need for symbolic links from for example libcrypto.so.0
6041 to libcrypto.so.0.9.7. There is extended info in Configure for
6044 - Make as few rebuilds of the shared libraries as possible.
6046 - Still avoid linking the OpenSSL programs with the shared libraries.
6048 - When installing, install the shared libraries separately from the
6052 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6054 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6055 and not in SSL_clear because the latter is also used by the
6056 accept/connect functions; previously, the settings made by
6057 SSL_set_read_ahead would be lost during the handshake.
6058 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6060 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6061 Previously, it would create entries for disableed algorithms no
6065 *) Added several new manual pages for SSL_* function.
6068 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6070 *) In ssl23_get_client_hello, generate an error message when faced
6071 with an initial SSL 3.0/TLS record that is too small to contain the
6072 first two bytes of the ClientHello message, i.e. client_version.
6073 (Note that this is a pathologic case that probably has never happened
6074 in real life.) The previous approach was to use the version number
6075 from the record header as a substitute; but our protocol choice
6076 should not depend on that one because it is not authenticated
6077 by the Finished messages.
6080 *) More robust randomness gathering functions for Windows.
6081 [Jeffrey Altman <jaltman@columbia.edu>]
6083 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6084 not set then we don't setup the error code for issuer check errors
6085 to avoid possibly overwriting other errors which the callback does
6086 handle. If an application does set the flag then we assume it knows
6087 what it is doing and can handle the new informational codes
6091 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6092 a general "ANY" type, as such it should be able to decode anything
6093 including tagged types. However it didn't check the class so it would
6094 wrongly interpret tagged types in the same way as their universal
6095 counterpart and unknown types were just rejected. Changed so that the
6096 tagged and unknown types are handled in the same way as a SEQUENCE:
6097 that is the encoding is stored intact. There is also a new type
6098 "V_ASN1_OTHER" which is used when the class is not universal, in this
6099 case we have no idea what the actual type is so we just lump them all
6103 *) On VMS, stdout may very well lead to a file that is written to
6104 in a record-oriented fashion. That means that every write() will
6105 write a separate record, which will be read separately by the
6106 programs trying to read from it. This can be very confusing.
6108 The solution is to put a BIO filter in the way that will buffer
6109 text until a linefeed is reached, and then write everything a
6110 line at a time, so every record written will be an actual line,
6111 not chunks of lines and not (usually doesn't happen, but I've
6112 seen it once) several lines in one record. BIO_f_linebuffer() is
6115 Currently, it's a VMS-only method, because that's where it has
6116 been tested well enough.
6119 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6120 it can return incorrect results.
6121 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6122 but it was in 0.9.6-beta[12].)
6125 *) Disable the check for content being present when verifying detached
6126 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6127 include zero length content when signing messages.
6130 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6131 BIO_ctrl (for BIO pairs).
6134 *) Add DSO method for VMS.
6137 *) Bug fix: Montgomery multiplication could produce results with the
6141 *) Add RPM specification openssl.spec and modify it to build three
6142 packages. The default package contains applications, application
6143 documentation and run-time libraries. The devel package contains
6144 include files, static libraries and function documentation. The
6145 doc package contains the contents of the doc directory. The original
6146 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6149 *) Add a large number of documentation files for many SSL routines.
6150 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6152 *) Add a configuration entry for Sony News 4.
6153 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6155 *) Don't set the two most significant bits to one when generating a
6156 random number < q in the DSA library.
6159 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6160 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6161 the underlying transport is blocking) if a handshake took place.
6162 (The default behaviour is needed by applications such as s_client
6163 and s_server that use select() to determine when to use SSL_read;
6164 but for applications that know in advance when to expect data, it
6165 just makes things more complicated.)
6168 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6172 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6173 work better on such systems.
6174 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6176 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6177 Update PKCS12_parse() so it copies the friendlyName and the
6178 keyid to the certificates aux info.
6181 *) Fix bug in PKCS7_verify() which caused an infinite loop
6182 if there was more than one signature.
6183 [Sven Uszpelkat <su@celocom.de>]
6185 *) Major change in util/mkdef.pl to include extra information
6186 about each symbol, as well as presentig variables as well
6187 as functions. This change means that there's n more need
6188 to rebuild the .num files when some algorithms are excluded.
6191 *) Allow the verify time to be set by an application,
6192 rather than always using the current time.
6195 *) Phase 2 verify code reorganisation. The certificate
6196 verify code now looks up an issuer certificate by a
6197 number of criteria: subject name, authority key id
6198 and key usage. It also verifies self signed certificates
6199 by the same criteria. The main comparison function is
6200 X509_check_issued() which performs these checks.
6202 Lot of changes were necessary in order to support this
6203 without completely rewriting the lookup code.
6205 Authority and subject key identifier are now cached.
6207 The LHASH 'certs' is X509_STORE has now been replaced
6208 by a STACK_OF(X509_OBJECT). This is mainly because an
6209 LHASH can't store or retrieve multiple objects with
6210 the same hash value.
6212 As a result various functions (which were all internal
6213 use only) have changed to handle the new X509_STORE
6214 structure. This will break anything that messed round
6215 with X509_STORE internally.
6217 The functions X509_STORE_add_cert() now checks for an
6218 exact match, rather than just subject name.
6220 The X509_STORE API doesn't directly support the retrieval
6221 of multiple certificates matching a given criteria, however
6222 this can be worked round by performing a lookup first
6223 (which will fill the cache with candidate certificates)
6224 and then examining the cache for matches. This is probably
6225 the best we can do without throwing out X509_LOOKUP
6226 entirely (maybe later...).
6228 The X509_VERIFY_CTX structure has been enhanced considerably.
6230 All certificate lookup operations now go via a get_issuer()
6231 callback. Although this currently uses an X509_STORE it
6232 can be replaced by custom lookups. This is a simple way
6233 to bypass the X509_STORE hackery necessary to make this
6234 work and makes it possible to use more efficient techniques
6235 in future. A very simple version which uses a simple
6236 STACK for its trusted certificate store is also provided
6237 using X509_STORE_CTX_trusted_stack().
6239 The verify_cb() and verify() callbacks now have equivalents
6240 in the X509_STORE_CTX structure.
6242 X509_STORE_CTX also has a 'flags' field which can be used
6243 to customise the verify behaviour.
6246 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6247 excludes S/MIME capabilities.
6250 *) When a certificate request is read in keep a copy of the
6251 original encoding of the signed data and use it when outputing
6252 again. Signatures then use the original encoding rather than
6253 a decoded, encoded version which may cause problems if the
6254 request is improperly encoded.
6257 *) For consistency with other BIO_puts implementations, call
6258 buffer_write(b, ...) directly in buffer_puts instead of calling
6261 In BIO_puts, increment b->num_write as in BIO_write.
6262 [Peter.Sylvester@EdelWeb.fr]
6264 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6265 BN_zero, we may not return a BIGNUM with an array consisting of
6269 *) Avoid calling abort() from within the library when problems are
6270 detected, except if preprocessor symbols have been defined
6271 (such as REF_CHECK, BN_DEBUG etc.).
6274 *) New openssl application 'rsautl'. This utility can be
6275 used for low level RSA operations. DER public key
6276 BIO/fp routines also added.
6279 *) New Configure entry and patches for compiling on QNX 4.
6280 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6282 *) A demo state-machine implementation was sponsored by
6283 Nuron (http://www.nuron.com/) and is now available in
6284 demos/state_machine.
6287 *) New options added to the 'dgst' utility for signature
6288 generation and verification.
6291 *) Unrecognized PKCS#7 content types are now handled via a
6292 catch all ASN1_TYPE structure. This allows unsupported
6293 types to be stored as a "blob" and an application can
6294 encode and decode it manually.
6297 *) Fix various signed/unsigned issues to make a_strex.c
6299 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6301 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6302 length if passed a buffer. ASN1_INTEGER_to_BN failed
6303 if passed a NULL BN and its argument was negative.
6304 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6306 *) Modification to PKCS#7 encoding routines to output definite
6307 length encoding. Since currently the whole structures are in
6308 memory there's not real point in using indefinite length
6309 constructed encoding. However if OpenSSL is compiled with
6310 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6313 *) Added BIO_vprintf() and BIO_vsnprintf().
6316 *) Added more prefixes to parse for in the the strings written
6317 through a logging bio, to cover all the levels that are available
6318 through syslog. The prefixes are now:
6320 PANIC, EMERG, EMR => LOG_EMERG
6321 ALERT, ALR => LOG_ALERT
6322 CRIT, CRI => LOG_CRIT
6323 ERROR, ERR => LOG_ERR
6324 WARNING, WARN, WAR => LOG_WARNING
6325 NOTICE, NOTE, NOT => LOG_NOTICE
6326 INFO, INF => LOG_INFO
6327 DEBUG, DBG => LOG_DEBUG
6329 and as before, if none of those prefixes are present at the
6330 beginning of the string, LOG_ERR is chosen.
6332 On Win32, the LOG_* levels are mapped according to this:
6334 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6335 LOG_WARNING => EVENTLOG_WARNING_TYPE
6336 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6340 *) Made it possible to reconfigure with just the configuration
6341 argument "reconf" or "reconfigure". The command line arguments
6342 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6343 and are retrieved from there when reconfiguring.
6347 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6349 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6352 *) The obj_dat.pl script was messing up the sorting of object
6353 names. The reason was that it compared the quoted version
6354 of strings as a result "OCSP" > "OCSP Signing" because
6355 " > SPACE. Changed script to store unquoted versions of
6356 names and add quotes on output. It was also omitting some
6357 names from the lookup table if they were given a default
6358 value (that is if SN is missing it is given the same
6359 value as LN and vice versa), these are now added on the
6360 grounds that if an object has a name we should be able to
6361 look it up. Finally added warning output when duplicate
6362 short or long names are found.
6365 *) Changes needed for Tandem NSK.
6366 [Scott Uroff <scott@xypro.com>]
6368 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6369 RSA_padding_check_SSLv23(), special padding was never detected
6370 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6371 version rollback attacks was not effective.
6373 In s23_clnt.c, don't use special rollback-attack detection padding
6374 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6375 client; similarly, in s23_srvr.c, don't do the rollback check if
6376 SSL 2.0 is the only protocol enabled in the server.
6379 *) Make it possible to get hexdumps of unprintable data with 'openssl
6380 asn1parse'. By implication, the functions ASN1_parse_dump() and
6381 BIO_dump_indent() are added.
6384 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6385 these print out strings and name structures based on various
6386 flags including RFC2253 support and proper handling of
6387 multibyte characters. Added options to the 'x509' utility
6388 to allow the various flags to be set.
6391 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6392 Also change the functions X509_cmp_current_time() and
6393 X509_gmtime_adj() work with an ASN1_TIME structure,
6394 this will enable certificates using GeneralizedTime in validity
6395 dates to be checked.
6398 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6399 negative public key encodings) on by default,
6400 NO_NEG_PUBKEY_BUG can be set to disable it.
6403 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6404 content octets. An i2c_ASN1_OBJECT is unnecessary because
6405 the encoding can be trivially obtained from the structure.
6408 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6409 not read locks (CRYPTO_r_[un]lock).
6412 *) A first attempt at creating official support for shared
6413 libraries through configuration. I've kept it so the
6414 default is static libraries only, and the OpenSSL programs
6415 are always statically linked for now, but there are
6416 preparations for dynamic linking in place.
6417 This has been tested on Linux and Tru64.
6420 *) Randomness polling function for Win9x, as described in:
6421 Peter Gutmann, Software Generation of Practically Strong
6425 *) Fix so PRNG is seeded in req if using an already existing
6429 *) New options to smime application. -inform and -outform
6430 allow alternative formats for the S/MIME message including
6431 PEM and DER. The -content option allows the content to be
6432 specified separately. This should allow things like Netscape
6433 form signing output easier to verify.
6436 *) Fix the ASN1 encoding of tags using the 'long form'.
6439 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6440 STRING types. These convert content octets to and from the
6441 underlying type. The actual tag and length octets are
6442 already assumed to have been read in and checked. These
6443 are needed because all other string types have virtually
6444 identical handling apart from the tag. By having versions
6445 of the ASN1 functions that just operate on content octets
6446 IMPLICIT tagging can be handled properly. It also allows
6447 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6448 and ASN1_INTEGER are identical apart from the tag.
6451 *) Change the handling of OID objects as follows:
6453 - New object identifiers are inserted in objects.txt, following
6454 the syntax given in objects.README.
6455 - objects.pl is used to process obj_mac.num and create a new
6457 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6460 This is currently kind of a hack, and the perl code in objects.pl
6461 isn't very elegant, but it works as I intended. The simplest way
6462 to check that it worked correctly is to look in obj_dat.h and
6463 check the array nid_objs and make sure the objects haven't moved
6464 around (this is important!). Additions are OK, as well as
6465 consistent name changes.
6468 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6471 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6472 The given file adds to whatever has already been seeded into the
6473 random pool through the RANDFILE configuration file option or
6474 environment variable, or the default random state file.
6477 *) mkstack.pl now sorts each macro group into lexical order.
6478 Previously the output order depended on the order the files
6479 appeared in the directory, resulting in needless rewriting
6483 *) Patches to make OpenSSL compile under Win32 again. Mostly
6484 work arounds for the VC++ problem that it treats func() as
6485 func(void). Also stripped out the parts of mkdef.pl that
6486 added extra typesafe functions: these no longer exist.
6489 *) Reorganisation of the stack code. The macros are now all
6490 collected in safestack.h . Each macro is defined in terms of
6491 a "stack macro" of the form SKM_<name>(type, a, b). The
6492 DEBUG_SAFESTACK is now handled in terms of function casts,
6493 this has the advantage of retaining type safety without the
6494 use of additional functions. If DEBUG_SAFESTACK is not defined
6495 then the non typesafe macros are used instead. Also modified the
6496 mkstack.pl script to handle the new form. Needs testing to see
6497 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6498 the default if no major problems. Similar behaviour for ASN1_SET_OF
6499 and PKCS12_STACK_OF.
6502 *) When some versions of IIS use the 'NET' form of private key the
6503 key derivation algorithm is different. Normally MD5(password) is
6504 used as a 128 bit RC4 key. In the modified case
6505 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6506 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6507 as the old Netscape_RSA functions except they have an additional
6508 'sgckey' parameter which uses the modified algorithm. Also added
6509 an -sgckey command line option to the rsa utility. Thanks to
6510 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6511 algorithm to openssl-dev.
6514 *) The evp_local.h macros were using 'c.##kname' which resulted in
6515 invalid expansion on some systems (SCO 5.0.5 for example).
6516 Corrected to 'c.kname'.
6517 [Phillip Porch <root@theporch.com>]
6519 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6520 a STACK of email addresses from a certificate or request, these look
6521 in the subject name and the subject alternative name extensions and
6522 omit any duplicate addresses.
6525 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6526 This makes DSA verification about 2 % faster.
6529 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6530 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6531 plus overhead for 1024 bit moduli).
6532 This makes exponentiations about 0.5 % faster for 1024 bit
6533 exponents (as measured by "openssl speed rsa2048").
6536 *) Rename memory handling macros to avoid conflicts with other
6538 Malloc => OPENSSL_malloc
6539 Malloc_locked => OPENSSL_malloc_locked
6540 Realloc => OPENSSL_realloc
6541 Free => OPENSSL_free
6544 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6545 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6548 *) CygWin32 support.
6549 [John Jarvie <jjarvie@newsguy.com>]
6551 *) The type-safe stack code has been rejigged. It is now only compiled
6552 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6553 by default all type-specific stack functions are "#define"d back to
6554 standard stack functions. This results in more streamlined output
6555 but retains the type-safety checking possibilities of the original
6559 *) The STACK code has been cleaned up, and certain type declarations
6560 that didn't make a lot of sense have been brought in line. This has
6561 also involved a cleanup of sorts in safestack.h to more correctly
6562 map type-safe stack functions onto their plain stack counterparts.
6563 This work has also resulted in a variety of "const"ifications of
6564 lots of the code, especially "_cmp" operations which should normally
6565 be prototyped with "const" parameters anyway.
6568 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6569 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6570 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6571 where all of 'md' is used each time the PRNG is used, but 'state'
6572 is used only indexed by a cyclic counter. As entropy may not be
6573 well distributed from the beginning, 'md' is important as a
6574 chaining variable. However, the output function chains only half
6575 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6576 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6577 in all of 'state' being rewritten, with the new values depending
6578 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6581 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6582 the handshake is continued after ssl_verify_cert_chain();
6583 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6584 can lead to 'unexplainable' connection aborts later.
6585 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6587 *) Major EVP API cipher revision.
6588 Add hooks for extra EVP features. This allows various cipher
6589 parameters to be set in the EVP interface. Support added for variable
6590 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6591 setting of RC2 and RC5 parameters.
6593 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6596 Remove lots of duplicated code from the EVP library. For example *every*
6597 cipher init() function handles the 'iv' in the same way according to the
6598 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6599 for CFB and OFB modes they zero ctx->num.
6601 New functionality allows removal of S/MIME code RC2 hack.
6603 Most of the routines have the same form and so can be declared in terms
6606 By shifting this to the top level EVP_CipherInit() it can be removed from
6607 all individual ciphers. If the cipher wants to handle IVs or keys
6608 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6611 Change lots of functions like EVP_EncryptUpdate() to now return a
6612 value: although software versions of the algorithms cannot fail
6613 any installed hardware versions can.
6616 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6617 this option is set, tolerate broken clients that send the negotiated
6618 protocol version number instead of the requested protocol version
6622 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6623 i.e. non-zero for export ciphersuites, zero otherwise.
6624 Previous versions had this flag inverted, inconsistent with
6625 rsa_tmp_cb (..._TMP_RSA_CB).
6626 [Bodo Moeller; problem reported by Amit Chopra]
6628 *) Add missing DSA library text string. Work around for some IIS
6629 key files with invalid SEQUENCE encoding.
6632 *) Add a document (doc/standards.txt) that list all kinds of standards
6633 and so on that are implemented in OpenSSL.
6636 *) Enhance c_rehash script. Old version would mishandle certificates
6637 with the same subject name hash and wouldn't handle CRLs at all.
6638 Added -fingerprint option to crl utility, to support new c_rehash
6642 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6645 *) Fix for SSL server purpose checking. Server checking was
6646 rejecting certificates which had extended key usage present
6647 but no ssl client purpose.
6648 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6650 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6651 is a little unclear about how a blank password is handled.
6652 Since the password in encoded as a BMPString with terminating
6653 double NULL a zero length password would end up as just the
6654 double NULL. However no password at all is different and is
6655 handled differently in the PKCS#12 key generation code. NS
6656 treats a blank password as zero length. MSIE treats it as no
6657 password on export: but it will try both on import. We now do
6658 the same: PKCS12_parse() tries zero length and no password if
6659 the password is set to "" or NULL (NULL is now a valid password:
6660 it wasn't before) as does the pkcs12 application.
6663 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6664 perror when PEM_read_bio_X509_REQ fails, the error message must
6665 be obtained from the error queue.
6668 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6669 it in ERR_remove_state if appropriate, and change ERR_get_state
6670 accordingly to avoid race conditions (this is necessary because
6671 thread_hash is no longer constant once set).
6674 *) Bugfix for linux-elf makefile.one.
6677 *) RSA_get_default_method() will now cause a default
6678 RSA_METHOD to be chosen if one doesn't exist already.
6679 Previously this was only set during a call to RSA_new()
6680 or RSA_new_method(NULL) meaning it was possible for
6681 RSA_get_default_method() to return NULL.
6684 *) Added native name translation to the existing DSO code
6685 that will convert (if the flag to do so is set) filenames
6686 that are sufficiently small and have no path information
6687 into a canonical native form. Eg. "blah" converted to
6688 "libblah.so" or "blah.dll" etc.
6691 *) New function ERR_error_string_n(e, buf, len) which is like
6692 ERR_error_string(e, buf), but writes at most 'len' bytes
6693 including the 0 terminator. For ERR_error_string_n, 'buf'
6695 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6697 *) CONF library reworked to become more general. A new CONF
6698 configuration file reader "class" is implemented as well as a
6699 new functions (NCONF_*, for "New CONF") to handle it. The now
6700 old CONF_* functions are still there, but are reimplemented to
6701 work in terms of the new functions. Also, a set of functions
6702 to handle the internal storage of the configuration data is
6703 provided to make it easier to write new configuration file
6704 reader "classes" (I can definitely see something reading a
6705 configuration file in XML format, for example), called _CONF_*,
6706 or "the configuration storage API"...
6708 The new configuration file reading functions are:
6710 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6711 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6713 NCONF_default, NCONF_WIN32
6715 NCONF_dump_fp, NCONF_dump_bio
6717 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6718 NCONF_new creates a new CONF object. This works in the same way
6719 as other interfaces in OpenSSL, like the BIO interface.
6720 NCONF_dump_* dump the internal storage of the configuration file,
6721 which is useful for debugging. All other functions take the same
6722 arguments as the old CONF_* functions wth the exception of the
6723 first that must be a `CONF *' instead of a `LHASH *'.
6725 To make it easer to use the new classes with the old CONF_* functions,
6726 the function CONF_set_default_method is provided.
6729 *) Add '-tls1' option to 'openssl ciphers', which was already
6730 mentioned in the documentation but had not been implemented.
6731 (This option is not yet really useful because even the additional
6732 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6735 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6736 OpenSSL-based applications) load shared libraries and bind to
6737 them in a portable way.
6738 [Geoff Thorpe, with contributions from Richard Levitte]
6740 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6742 *) Make sure _lrotl and _lrotr are only used with MSVC.
6744 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6745 (the default implementation of RAND_status).
6747 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6748 to '-clrext' (= clear extensions), as intended and documented.
6749 [Bodo Moeller; inconsistency pointed out by Michael Attili
6752 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6753 was larger than the MD block size.
6754 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6756 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6757 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6758 using the passed key: if the passed key was a private key the result
6759 of X509_print(), for example, would be to print out all the private key
6763 *) des_quad_cksum() byte order bug fix.
6764 [Ulf Möller, using the problem description in krb4-0.9.7, where
6765 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6767 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6769 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6771 *) For easily testing in shell scripts whether some command
6772 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6773 returns with exit code 0 iff no command of the given name is available.
6774 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6775 the output goes to stdout and nothing is printed to stderr.
6776 Additional arguments are always ignored.
6778 Since for each cipher there is a command of the same name,
6779 the 'no-cipher' compilation switches can be tested this way.
6781 ('openssl no-XXX' is not able to detect pseudo-commands such
6782 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6785 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6788 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6789 is set; it will be thrown away anyway because each handshake creates
6791 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6792 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6793 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6794 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6797 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6798 'Q' and 'R' lose their special meanings (quit/renegotiate).
6799 This is part of what -quiet does; unlike -quiet, -ign_eof
6800 does not suppress any output.
6803 *) Add compatibility options to the purpose and trust code. The
6804 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6805 accepts a certificate or CA, this was the previous behaviour,
6806 with all the associated security issues.
6808 X509_TRUST_COMPAT is the old trust behaviour: only and
6809 automatically trust self signed roots in certificate store. A
6810 new trust setting X509_TRUST_DEFAULT is used to specify that
6811 a purpose has no associated trust setting and it should instead
6812 use the value in the default purpose.
6815 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6816 and fix a memory leak.
6819 *) In util/mkerr.pl (which implements 'make errors'), preserve
6820 reason strings from the previous version of the .c file, as
6821 the default to have only downcase letters (and digits) in
6822 automatically generated reasons codes is not always appropriate.
6825 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6826 using strerror. Previously, ERR_reason_error_string() returned
6827 library names as reason strings for SYSerr; but SYSerr is a special
6828 case where small numbers are errno values, not library numbers.
6831 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6832 converts DSA parameters into DH parameters. (When creating parameters,
6833 DSA_generate_parameters is used.)
6836 *) Include 'length' (recommended exponent length) in C code generated
6837 by 'openssl dhparam -C'.
6840 *) The second argument to set_label in perlasm was already being used
6841 so couldn't be used as a "file scope" flag. Moved to third argument
6845 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6846 instead of RAND_bytes for encryption IVs and salts.
6849 *) Include RAND_status() into RAND_METHOD instead of implementing
6850 it only for md_rand.c Otherwise replacing the PRNG by calling
6851 RAND_set_rand_method would be impossible.
6854 *) Don't let DSA_generate_key() enter an infinite loop if the random
6855 number generation fails.
6858 *) New 'rand' application for creating pseudo-random output.
6861 *) Added configuration support for Linux/IA64
6862 [Rolf Haberrecker <rolf@suse.de>]
6864 *) Assembler module support for Mingw32.
6867 *) Shared library support for HPUX (in shlib/).
6868 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6870 *) Shared library support for Solaris gcc.
6871 [Lutz Behnke <behnke@trustcenter.de>]
6873 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6875 *) PKCS7_encrypt() was adding text MIME headers twice because they
6876 were added manually and by SMIME_crlf_copy().
6879 *) In bntest.c don't call BN_rand with zero bits argument.
6880 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6882 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6883 case was implemented. This caused BN_div_recp() to fail occasionally.
6886 *) Add an optional second argument to the set_label() in the perl
6887 assembly language builder. If this argument exists and is set
6888 to 1 it signals that the assembler should use a symbol whose
6889 scope is the entire file, not just the current function. This
6890 is needed with MASM which uses the format label:: for this scope.
6891 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6893 *) Change the ASN1 types so they are typedefs by default. Before
6894 almost all types were #define'd to ASN1_STRING which was causing
6895 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6899 *) Change names of new functions to the new get1/get0 naming
6900 convention: After 'get1', the caller owns a reference count
6901 and has to call ..._free; 'get0' returns a pointer to some
6902 data structure without incrementing reference counters.
6903 (Some of the existing 'get' functions increment a reference
6904 counter, some don't.)
6905 Similarly, 'set1' and 'add1' functions increase reference
6906 counters or duplicate objects.
6909 *) Allow for the possibility of temp RSA key generation failure:
6910 the code used to assume it always worked and crashed on failure.
6913 *) Fix potential buffer overrun problem in BIO_printf().
6914 [Ulf Möller, using public domain code by Patrick Powell; problem
6915 pointed out by David Sacerdote <das33@cornell.edu>]
6917 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6918 RAND_egd() and RAND_status(). In the command line application,
6919 the EGD socket can be specified like a seed file using RANDFILE
6923 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6924 Some CAs (e.g. Verisign) distribute certificates in this form.
6927 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6928 list to exclude them. This means that no special compilation option
6929 is needed to use anonymous DH: it just needs to be included in the
6933 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6934 EVP_MD_type. The old functionality is available in a new macro called
6935 EVP_MD_md(). Change code that uses it and update docs.
6938 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6939 where the 'void *' argument is replaced by a function pointer argument.
6940 Previously 'void *' was abused to point to functions, which works on
6941 many platforms, but is not correct. As these functions are usually
6942 called by macros defined in OpenSSL header files, most source code
6943 should work without changes.
6946 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6947 sections with information on -D... compiler switches used for
6948 compiling the library so that applications can see them. To enable
6949 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6950 must be defined. E.g.,
6951 #define OPENSSL_ALGORITHM_DEFINES
6952 #include <openssl/opensslconf.h>
6953 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6954 [Richard Levitte, Ulf and Bodo Möller]
6956 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6960 *) Change the 'other' type in certificate aux info to a STACK_OF
6961 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6962 the required ASN1 format: arbitrary types determined by an OID.
6965 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6966 argument to 'req'. This is not because the function is newer or
6967 better than others it just uses the work 'NEW' in the certificate
6968 request header lines. Some software needs this.
6971 *) Reorganise password command line arguments: now passwords can be
6972 obtained from various sources. Delete the PEM_cb function and make
6973 it the default behaviour: i.e. if the callback is NULL and the
6974 usrdata argument is not NULL interpret it as a null terminated pass
6975 phrase. If usrdata and the callback are NULL then the pass phrase
6976 is prompted for as usual.
6979 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6980 the support is automatically enabled. The resulting binaries will
6981 autodetect the card and use it if present.
6982 [Ben Laurie and Compaq Inc.]
6984 *) Work around for Netscape hang bug. This sends certificate request
6985 and server done in one record. Since this is perfectly legal in the
6986 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6987 the bugs/SSLv3 entry for more info.
6990 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6993 *) Add -rand argument to smime and pkcs12 applications and read/write
6997 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7000 *) Add command line password options to the remaining applications.
7003 *) Bug fix for BN_div_recp() for numerators with an even number of
7007 *) More tests in bntest.c, and changed test_bn output.
7010 *) ./config recognizes MacOS X now.
7013 *) Bug fix for BN_div() when the first words of num and divsor are
7014 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7017 *) Add support for various broken PKCS#8 formats, and command line
7018 options to produce them.
7021 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7022 get temporary BIGNUMs from a BN_CTX.
7025 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7029 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7030 include a #define from the old name to the new. The original intent
7031 was that statically linked binaries could for example just call
7032 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7033 link with digests. This never worked becayse SSLeay_add_all_digests()
7034 and SSLeay_add_all_ciphers() were in the same source file so calling
7035 one would link with the other. They are now in separate source files.
7038 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7041 *) Use a less unusual form of the Miller-Rabin primality test (it used
7042 a binary algorithm for exponentiation integrated into the Miller-Rabin
7043 loop, our standard modexp algorithms are faster).
7046 *) Support for the EBCDIC character set completed.
7047 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7049 *) Source code cleanups: use const where appropriate, eliminate casts,
7050 use void * instead of char * in lhash.
7053 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7054 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7055 this the server could overwrite ephemeral keys that the client
7059 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7060 using 50 iterations of the Rabin-Miller test.
7062 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7063 iterations of the Rabin-Miller test as required by the appendix
7064 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7065 As BN_is_prime_fasttest includes trial division, DSA parameter
7066 generation becomes much faster.
7068 This implies a change for the callback functions in DSA_is_prime
7069 and DSA_generate_parameters: The callback function is called once
7070 for each positive witness in the Rabin-Miller test, not just
7071 occasionally in the inner loop; and the parameters to the
7072 callback function now provide an iteration count for the outer
7073 loop rather than for the current invocation of the inner loop.
7074 DSA_generate_parameters additionally can call the callback
7075 function with an 'iteration count' of -1, meaning that a
7076 candidate has passed the trial division test (when q is generated
7077 from an application-provided seed, trial division is skipped).
7080 *) New function BN_is_prime_fasttest that optionally does trial
7081 division before starting the Rabin-Miller test and has
7082 an additional BN_CTX * argument (whereas BN_is_prime always
7083 has to allocate at least one BN_CTX).
7084 'callback(1, -1, cb_arg)' is called when a number has passed the
7085 trial division stage.
7088 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7092 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7095 *) New function BN_pseudo_rand().
7098 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7099 bignum version of BN_from_montgomery() with the working code from
7100 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7104 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7105 made it impossible to use the same SSL_SESSION data structure in
7106 SSL2 clients in multiple threads.
7109 *) The return value of RAND_load_file() no longer counts bytes obtained
7110 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7111 to seed the PRNG (previously an explicit byte count was required).
7112 [Ulf Möller, Bodo Möller]
7114 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7115 used (char *) instead of (void *) and had casts all over the place.
7118 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7121 *) Retain source code compatibility for BN_prime_checks macro:
7122 BN_is_prime(..., BN_prime_checks, ...) now uses
7123 BN_prime_checks_for_size to determine the appropriate number of
7124 Rabin-Miller iterations.
7127 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7128 DH_CHECK_P_NOT_SAFE_PRIME.
7129 (Check if this is true? OpenPGP calls them "strong".)
7132 *) Merge the functionality of "dh" and "gendh" programs into a new program
7133 "dhparam". The old programs are retained for now but will handle DH keys
7134 (instead of parameters) in future.
7137 *) Make the ciphers, s_server and s_client programs check the return values
7138 when a new cipher list is set.
7141 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7142 ciphers. Before when the 56bit ciphers were enabled the sorting was
7145 The syntax for the cipher sorting has been extended to support sorting by
7146 cipher-strength (using the strength_bits hard coded in the tables).
7147 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7149 Fix a bug in the cipher-command parser: when supplying a cipher command
7150 string with an "undefined" symbol (neither command nor alphanumeric
7151 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7152 an error is flagged.
7154 Due to the strength-sorting extension, the code of the
7155 ssl_create_cipher_list() function was completely rearranged. I hope that
7156 the readability was also increased :-)
7157 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7159 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7160 for the first serial number and places 2 in the serial number file. This
7161 avoids problems when the root CA is created with serial number zero and
7162 the first user certificate has the same issuer name and serial number
7166 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7167 the new code. Add documentation for this stuff.
7170 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7171 X509_*() to X509at_*() on the grounds that they don't handle X509
7172 structures and behave in an analagous way to the X509v3 functions:
7173 they shouldn't be called directly but wrapper functions should be used
7176 So we also now have some wrapper functions that call the X509at functions
7177 when passed certificate requests. (TO DO: similar things can be done with
7178 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7179 things. Some of these need some d2i or i2d and print functionality
7180 because they handle more complex structures.)
7183 *) Add missing #ifndefs that caused missing symbols when building libssl
7184 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7185 NO_RSA in ssl/s2*.c.
7186 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7188 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7189 has a return value which indicates the quality of the random data
7190 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7191 error queue. New function RAND_pseudo_bytes() generates output that is
7192 guaranteed to be unique but not unpredictable. RAND_add is like
7193 RAND_seed, but takes an extra argument for an entropy estimate
7194 (RAND_seed always assumes full entropy).
7197 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7198 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7199 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7200 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7201 false-positive rate of at most 2^-80 for random input.
7204 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7207 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7208 in the 0.9.5 release), this returns the chain
7209 from an X509_CTX structure with a dup of the stack and all
7210 the X509 reference counts upped: so the stack will exist
7211 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7214 Also make SSL_SESSION_print() print out the verify return
7218 *) Add manpage for the pkcs12 command. Also change the default
7219 behaviour so MAC iteration counts are used unless the new
7220 -nomaciter option is used. This improves file security and
7221 only older versions of MSIE (4.0 for example) need it.
7224 *) Honor the no-xxx Configure options when creating .DEF files.
7227 *) Add PKCS#10 attributes to field table: challengePassword,
7228 unstructuredName and unstructuredAddress. These are taken from
7229 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7230 international characters are used.
7232 More changes to X509_ATTRIBUTE code: allow the setting of types
7233 based on strings. Remove the 'loc' parameter when adding
7234 attributes because these will be a SET OF encoding which is sorted
7238 *) Initial changes to the 'req' utility to allow request generation
7239 automation. This will allow an application to just generate a template
7240 file containing all the field values and have req construct the
7243 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7244 used all over the place including certificate requests and PKCS#7
7245 structures. They are currently handled manually where necessary with
7246 some primitive wrappers for PKCS#7. The new functions behave in a
7247 manner analogous to the X509 extension functions: they allow
7248 attributes to be looked up by NID and added.
7250 Later something similar to the X509V3 code would be desirable to
7251 automatically handle the encoding, decoding and printing of the
7252 more complex types. The string types like challengePassword can
7253 be handled by the string table functions.
7255 Also modified the multi byte string table handling. Now there is
7256 a 'global mask' which masks out certain types. The table itself
7257 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7258 is useful when for example there is only one permissible type
7259 (as in countryName) and using the mask might result in no valid
7263 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7264 SSL_get_peer_finished to allow applications to obtain the latest
7265 Finished messages sent to the peer or expected from the peer,
7266 respectively. (SSL_get_peer_finished is usually the Finished message
7267 actually received from the peer, otherwise the protocol will be aborted.)
7269 As the Finished message are message digests of the complete handshake
7270 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7271 be used for external authentication procedures when the authentication
7272 provided by SSL/TLS is not desired or is not enough.
7275 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7276 the host supports BWX extension and if Compaq C is present on the
7277 $PATH. Just exploiting of the BWX extension results in 20-30%
7278 performance kick for some algorithms, e.g. DES and RC4 to mention
7279 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7283 *) Add support for MS "fast SGC". This is arguably a violation of the
7284 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7285 weak crypto and after checking the certificate is SGC a second one
7286 with strong crypto. MS SGC stops the first handshake after receiving
7287 the server certificate message and sends a second client hello. Since
7288 a server will typically do all the time consuming operations before
7289 expecting any further messages from the client (server key exchange
7290 is the most expensive) there is little difference between the two.
7292 To get OpenSSL to support MS SGC we have to permit a second client
7293 hello message after we have sent server done. In addition we have to
7294 reset the MAC if we do get this second client hello.
7297 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7298 if a DER encoded private key is RSA or DSA traditional format. Changed
7299 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7300 format DER encoded private key. Newer code should use PKCS#8 format which
7301 has the key type encoded in the ASN1 structure. Added DER private key
7302 support to pkcs8 application.
7305 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7306 ciphersuites has been selected (as required by the SSL 3/TLS 1
7307 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7308 is set, we interpret this as a request to violate the specification
7309 (the worst that can happen is a handshake failure, and 'correct'
7310 behaviour would result in a handshake failure anyway).
7313 *) In SSL_CTX_add_session, take into account that there might be multiple
7314 SSL_SESSION structures with the same session ID (e.g. when two threads
7315 concurrently obtain them from an external cache).
7316 The internal cache can handle only one SSL_SESSION with a given ID,
7317 so if there's a conflict, we now throw out the old one to achieve
7321 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7322 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7323 some routines that use cipher OIDs: some ciphers do not have OIDs
7324 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7328 *) Simplify the trust setting structure and code. Now we just have
7329 two sequences of OIDs for trusted and rejected settings. These will
7330 typically have values the same as the extended key usage extension
7331 and any application specific purposes.
7333 The trust checking code now has a default behaviour: it will just
7334 check for an object with the same NID as the passed id. Functions can
7335 be provided to override either the default behaviour or the behaviour
7336 for a given id. SSL client, server and email already have functions
7337 in place for compatibility: they check the NID and also return "trusted"
7338 if the certificate is self signed.
7341 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7342 traditional format into an EVP_PKEY structure.
7345 *) Add a password callback function PEM_cb() which either prompts for
7346 a password if usr_data is NULL or otherwise assumes it is a null
7347 terminated password. Allow passwords to be passed on command line
7348 environment or config files in a few more utilities.
7351 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7352 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7353 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7354 Update documentation.
7357 *) Support for ASN1 "NULL" type. This could be handled before by using
7358 ASN1_TYPE but there wasn't any function that would try to read a NULL
7359 and produce an error if it couldn't. For compatibility we also have
7360 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7361 don't allocate anything because they don't need to.
7364 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7366 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7368 *) Rebuild of the memory allocation routines used by OpenSSL code and
7369 possibly others as well. The purpose is to make an interface that
7370 provide hooks so anyone can build a separate set of allocation and
7371 deallocation routines to be used by OpenSSL, for example memory
7372 pool implementations, or something else, which was previously hard
7373 since Malloc(), Realloc() and Free() were defined as macros having
7374 the values malloc, realloc and free, respectively (except for Win32
7375 compilations). The same is provided for memory debugging code.
7376 OpenSSL already comes with functionality to find memory leaks, but
7377 this gives people a chance to debug other memory problems.
7379 With these changes, a new set of functions and macros have appeared:
7381 CRYPTO_set_mem_debug_functions() [F]
7382 CRYPTO_get_mem_debug_functions() [F]
7383 CRYPTO_dbg_set_options() [F]
7384 CRYPTO_dbg_get_options() [F]
7385 CRYPTO_malloc_debug_init() [M]
7387 The memory debug functions are NULL by default, unless the library
7388 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7389 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7390 gives the standard debugging functions that come with OpenSSL) or
7391 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7392 provided by the library user) must be used. When the standard
7393 debugging functions are used, CRYPTO_dbg_set_options can be used to
7394 request additional information:
7395 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7396 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7398 Also, things like CRYPTO_set_mem_functions will always give the
7399 expected result (the new set of functions is used for allocation
7400 and deallocation) at all times, regardless of platform and compiler
7403 To finish it up, some functions that were never use in any other
7404 way than through macros have a new API and new semantic:
7407 CRYPTO_dbg_realloc()
7410 All macros of value have retained their old syntax.
7411 [Richard Levitte and Bodo Moeller]
7413 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7414 ordering of SMIMECapabilities wasn't in "strength order" and there
7415 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7419 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7420 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7421 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7423 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7424 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7425 functionality to handle multipart/signed properly) and a utility
7426 called 'smime' to call all this stuff. This is based on code I
7427 originally wrote for Celo who have kindly allowed it to be
7428 included in OpenSSL.
7431 *) Add variants des_set_key_checked and des_set_key_unchecked of
7432 des_set_key (aka des_key_sched). Global variable des_check_key
7433 decides which of these is called by des_set_key; this way
7434 des_check_key behaves as it always did, but applications and
7435 the library itself, which was buggy for des_check_key == 1,
7436 have a cleaner way to pick the version they need.
7439 *) New function PKCS12_newpass() which changes the password of a
7443 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7444 dynamic mix. In both cases the ids can be used as an index into the
7445 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7446 functions so they accept a list of the field values and the
7447 application doesn't need to directly manipulate the X509_TRUST
7451 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7455 *) Modify the way the V3 extension code looks up extensions. This now
7456 works in a similar way to the object code: we have some "standard"
7457 extensions in a static table which is searched with OBJ_bsearch()
7458 and the application can add dynamic ones if needed. The file
7459 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7460 updated whenever a new extension is added to the core code and kept
7461 in ext_nid order. There is a simple program 'tabtest.c' which checks
7462 this. New extensions are not added too often so this file can readily
7463 be maintained manually.
7465 There are two big advantages in doing things this way. The extensions
7466 can be looked up immediately and no longer need to be "added" using
7467 X509V3_add_standard_extensions(): this function now does nothing.
7468 [Side note: I get *lots* of email saying the extension code doesn't
7469 work because people forget to call this function]
7470 Also no dynamic allocation is done unless new extensions are added:
7471 so if we don't add custom extensions there is no need to call
7472 X509V3_EXT_cleanup().
7475 *) Modify enc utility's salting as follows: make salting the default. Add a
7476 magic header, so unsalted files fail gracefully instead of just decrypting
7477 to garbage. This is because not salting is a big security hole, so people
7478 should be discouraged from doing it.
7481 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7482 digest to be passed on the command line but it only used this
7483 parameter when signing a certificate. Modified so all relevant
7484 operations are affected by the digest parameter including the
7485 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7486 DSA key was used because it didn't fix the digest.
7489 *) Initial certificate chain verify code. Currently tests the untrusted
7490 certificates for consistency with the verify purpose (which is set
7491 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7493 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7494 this is because it will reject chains with invalid extensions whereas
7495 every previous version of OpenSSL and SSLeay made no checks at all.
7497 Trust code: checks the root CA for the relevant trust settings. Trust
7498 settings have an initial value consistent with the verify purpose: e.g.
7499 if the verify purpose is for SSL client use it expects the CA to be
7500 trusted for SSL client use. However the default value can be changed to
7501 permit custom trust settings: one example of this would be to only trust
7502 certificates from a specific "secure" set of CAs.
7504 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7505 which should be used for version portability: especially since the
7506 verify structure is likely to change more often now.
7508 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7509 to set them. If not set then assume SSL clients will verify SSL servers
7512 Two new options to the verify program: -untrusted allows a set of
7513 untrusted certificates to be passed in and -purpose which sets the
7514 intended purpose of the certificate. If a purpose is set then the
7515 new chain verify code is used to check extension consistency.
7518 *) Support for the authority information access extension.
7521 *) Modify RSA and DSA PEM read routines to transparently handle
7522 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7523 public keys in a format compatible with certificate
7524 SubjectPublicKeyInfo structures. Unfortunately there were already
7525 functions called *_PublicKey_* which used various odd formats so
7526 these are retained for compatibility: however the DSA variants were
7527 never in a public release so they have been deleted. Changed dsa/rsa
7528 utilities to handle the new format: note no releases ever handled public
7529 keys so we should be OK.
7531 The primary motivation for this change is to avoid the same fiasco
7532 that dogs private keys: there are several incompatible private key
7533 formats some of which are standard and some OpenSSL specific and
7534 require various evil hacks to allow partial transparent handling and
7535 even then it doesn't work with DER formats. Given the option anything
7536 other than PKCS#8 should be dumped: but the other formats have to
7537 stay in the name of compatibility.
7539 With public keys and the benefit of hindsight one standard format
7540 is used which works with EVP_PKEY, RSA or DSA structures: though
7541 it clearly returns an error if you try to read the wrong kind of key.
7543 Added a -pubkey option to the 'x509' utility to output the public key.
7544 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7545 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7546 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7547 that do the same as the EVP_PKEY_assign_*() except they up the
7548 reference count of the added key (they don't "swallow" the
7552 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7553 CRLs would fail if the file contained no certificates or no CRLs:
7554 added a new function to read in both types and return the number
7555 read: this means that if none are read it will be an error. The
7556 DER versions of the certificate and CRL reader would always fail
7557 because it isn't possible to mix certificates and CRLs in DER format
7558 without choking one or the other routine. Changed this to just read
7559 a certificate: this is the best we can do. Also modified the code
7560 in apps/verify.c to take notice of return codes: it was previously
7561 attempting to read in certificates from NULL pointers and ignoring
7562 any errors: this is one reason why the cert and CRL reader seemed
7563 to work. It doesn't check return codes from the default certificate
7564 routines: these may well fail if the certificates aren't installed.
7567 *) Code to support otherName option in GeneralName.
7570 *) First update to verify code. Change the verify utility
7571 so it warns if it is passed a self signed certificate:
7572 for consistency with the normal behaviour. X509_verify
7573 has been modified to it will now verify a self signed
7574 certificate if *exactly* the same certificate appears
7575 in the store: it was previously impossible to trust a
7576 single self signed certificate. This means that:
7577 openssl verify ss.pem
7578 now gives a warning about a self signed certificate but
7579 openssl verify -CAfile ss.pem ss.pem
7583 *) For servers, store verify_result in SSL_SESSION data structure
7584 (and add it to external session representation).
7585 This is needed when client certificate verifications fails,
7586 but an application-provided verification callback (set by
7587 SSL_CTX_set_cert_verify_callback) allows accepting the session
7588 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7589 but returns 1): When the session is reused, we have to set
7590 ssl->verify_result to the appropriate error code to avoid
7592 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7594 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7595 case in PKCS7_dataInit() where the signed PKCS7 structure
7596 didn't contain any existing data because it was being created.
7597 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7599 *) Add a salt to the key derivation routines in enc.c. This
7600 forms the first 8 bytes of the encrypted file. Also add a
7601 -S option to allow a salt to be input on the command line.
7604 *) New function X509_cmp(). Oddly enough there wasn't a function
7605 to compare two certificates. We do this by working out the SHA1
7606 hash and comparing that. X509_cmp() will be needed by the trust
7610 *) SSL_get1_session() is like SSL_get_session(), but increments
7611 the reference count in the SSL_SESSION returned.
7612 [Geoff Thorpe <geoff@eu.c2.net>]
7614 *) Fix for 'req': it was adding a null to request attributes.
7615 Also change the X509_LOOKUP and X509_INFO code to handle
7616 certificate auxiliary information.
7619 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7623 *) Add the possibility to add extra information to the memory leak
7624 detecting output, to form tracebacks, showing from where each
7625 allocation was originated: CRYPTO_push_info("constant string") adds
7626 the string plus current file name and line number to a per-thread
7627 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7628 is like calling CYRPTO_pop_info() until the stack is empty.
7629 Also updated memory leak detection code to be multi-thread-safe.
7632 *) Add options -text and -noout to pkcs7 utility and delete the
7633 encryption options which never did anything. Update docs.
7636 *) Add options to some of the utilities to allow the pass phrase
7637 to be included on either the command line (not recommended on
7638 OSes like Unix) or read from the environment. Update the
7639 manpages and fix a few bugs.
7642 *) Add a few manpages for some of the openssl commands.
7645 *) Fix the -revoke option in ca. It was freeing up memory twice,
7646 leaking and not finding already revoked certificates.
7649 *) Extensive changes to support certificate auxiliary information.
7650 This involves the use of X509_CERT_AUX structure and X509_AUX
7651 functions. An X509_AUX function such as PEM_read_X509_AUX()
7652 can still read in a certificate file in the usual way but it
7653 will also read in any additional "auxiliary information". By
7654 doing things this way a fair degree of compatibility can be
7655 retained: existing certificates can have this information added
7656 using the new 'x509' options.
7658 Current auxiliary information includes an "alias" and some trust
7659 settings. The trust settings will ultimately be used in enhanced
7660 certificate chain verification routines: currently a certificate
7661 can only be trusted if it is self signed and then it is trusted
7665 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7666 The problem was that one of the replacement routines had not been working
7667 since SSLeay releases. For now the offending routine has been replaced
7668 with non-optimised assembler. Even so, this now gives around 95%
7669 performance improvement for 1024 bit RSA signs.
7672 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7673 handling. Most clients have the effective key size in bits equal to
7674 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7675 A few however don't do this and instead use the size of the decrypted key
7676 to determine the RC2 key length and the AlgorithmIdentifier to determine
7677 the effective key length. In this case the effective key length can still
7678 be 40 bits but the key length can be 168 bits for example. This is fixed
7679 by manually forcing an RC2 key into the EVP_PKEY structure because the
7680 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7681 the key length and effective key length are equal.
7684 *) Add a bunch of functions that should simplify the creation of
7685 X509_NAME structures. Now you should be able to do:
7686 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7687 and have it automatically work out the correct field type and fill in
7688 the structures. The more adventurous can try:
7689 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7690 and it will (hopefully) work out the correct multibyte encoding.
7693 *) Change the 'req' utility to use the new field handling and multibyte
7694 copy routines. Before the DN field creation was handled in an ad hoc
7695 way in req, ca, and x509 which was rather broken and didn't support
7696 BMPStrings or UTF8Strings. Since some software doesn't implement
7697 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7698 using the dirstring_type option. See the new comment in the default
7699 openssl.cnf for more info.
7702 *) Make crypto/rand/md_rand.c more robust:
7703 - Assure unique random numbers after fork().
7704 - Make sure that concurrent threads access the global counter and
7705 md serializably so that we never lose entropy in them
7706 or use exactly the same state in multiple threads.
7707 Access to the large state is not always serializable because
7708 the additional locking could be a performance killer, and
7709 md should be large enough anyway.
7712 *) New file apps/app_rand.c with commonly needed functionality
7713 for handling the random seed file.
7715 Use the random seed file in some applications that previously did not:
7717 dsaparam -genkey (which also ignored its '-rand' option),
7720 x509 (when signing).
7721 Except on systems with /dev/urandom, it is crucial to have a random
7722 seed file at least for key creation, DSA signing, and for DH exchanges;
7723 for RSA signatures we could do without one.
7725 gendh and gendsa (unlike genrsa) used to read only the first byte
7726 of each file listed in the '-rand' option. The function as previously
7727 found in genrsa is now in app_rand.c and is used by all programs
7728 that support '-rand'.
7731 *) In RAND_write_file, use mode 0600 for creating files;
7732 don't just chmod when it may be too late.
7735 *) Report an error from X509_STORE_load_locations
7736 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7739 *) New function ASN1_mbstring_copy() this copies a string in either
7740 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7741 into an ASN1_STRING type. A mask of permissible types is passed
7742 and it chooses the "minimal" type to use or an error if not type
7746 *) Add function equivalents to the various macros in asn1.h. The old
7747 macros are retained with an M_ prefix. Code inside the library can
7748 use the M_ macros. External code (including the openssl utility)
7749 should *NOT* in order to be "shared library friendly".
7752 *) Add various functions that can check a certificate's extensions
7753 to see if it usable for various purposes such as SSL client,
7754 server or S/MIME and CAs of these types. This is currently
7755 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7756 verification. Also added a -purpose flag to x509 utility to
7757 print out all the purposes.
7760 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7764 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7765 for, obtain and decode and extension and obtain its critical flag.
7766 This allows all the necessary extension code to be handled in a
7767 single function call.
7770 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7771 platforms. See crypto/rc4/rc4_enc.c for further details.
7774 *) New -noout option to asn1parse. This causes no output to be produced
7775 its main use is when combined with -strparse and -out to extract data
7776 from a file (which may not be in ASN.1 format).
7779 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7780 when producing the local key id.
7781 [Richard Levitte <levitte@stacken.kth.se>]
7783 *) New option -dhparam in s_server. This allows a DH parameter file to be
7784 stated explicitly. If it is not stated then it tries the first server
7785 certificate file. The previous behaviour hard coded the filename
7789 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7790 a public key to be input or output. For example:
7791 openssl rsa -in key.pem -pubout -out pubkey.pem
7792 Also added necessary DSA public key functions to handle this.
7795 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7796 in the message. This was handled by allowing
7797 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7798 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7800 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7801 to the end of the strings whereas this didn't. This would cause problems
7802 if strings read with d2i_ASN1_bytes() were later modified.
7803 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7805 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7806 data and it contains EOF it will end up returning an error. This is
7807 caused by input 46 bytes long. The cause is due to the way base64
7808 BIOs find the start of base64 encoded data. They do this by trying a
7809 trial decode on each line until they find one that works. When they
7810 do a flag is set and it starts again knowing it can pass all the
7811 data directly through the decoder. Unfortunately it doesn't reset
7812 the context it uses. This means that if EOF is reached an attempt
7813 is made to pass two EOFs through the context and this causes the
7814 resulting error. This can also cause other problems as well. As is
7815 usual with these problems it takes *ages* to find and the fix is
7816 trivial: move one line.
7817 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7819 *) Ugly workaround to get s_client and s_server working under Windows. The
7820 old code wouldn't work because it needed to select() on sockets and the
7821 tty (for keypresses and to see if data could be written). Win32 only
7822 supports select() on sockets so we select() with a 1s timeout on the
7823 sockets and then see if any characters are waiting to be read, if none
7824 are present then we retry, we also assume we can always write data to
7825 the tty. This isn't nice because the code then blocks until we've
7826 received a complete line of data and it is effectively polling the
7827 keyboard at 1s intervals: however it's quite a bit better than not
7828 working at all :-) A dedicated Windows application might handle this
7829 with an event loop for example.
7832 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7833 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7834 will be called when RSA_sign() and RSA_verify() are used. This is useful
7835 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7836 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7837 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7838 This necessitated the support of an extra signature type NID_md5_sha1
7839 for SSL signatures and modifications to the SSL library to use it instead
7840 of calling RSA_public_decrypt() and RSA_private_encrypt().
7843 *) Add new -verify -CAfile and -CApath options to the crl program, these
7844 will lookup a CRL issuers certificate and verify the signature in a
7845 similar way to the verify program. Tidy up the crl program so it
7846 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7847 less strict. It will now permit CRL extensions even if it is not
7848 a V2 CRL: this will allow it to tolerate some broken CRLs.
7851 *) Initialize all non-automatic variables each time one of the openssl
7852 sub-programs is started (this is necessary as they may be started
7853 multiple times from the "OpenSSL>" prompt).
7854 [Lennart Bang, Bodo Moeller]
7856 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7857 removing all other RSA functionality (this is what NO_RSA does). This
7858 is so (for example) those in the US can disable those operations covered
7859 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7863 *) Non-copying interface to BIO pairs.
7864 (still largely untested)
7867 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7868 ASCII string. This was handled independently in various places before.
7871 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7872 UTF8 strings a character at a time.
7875 *) Use client_version from client hello to select the protocol
7876 (s23_srvr.c) and for RSA client key exchange verification
7877 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7880 *) Add various utility functions to handle SPKACs, these were previously
7881 handled by poking round in the structure internals. Added new function
7882 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7883 print, verify and generate SPKACs. Based on an original idea from
7884 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7887 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7890 *) Allow the config file extension section to be overwritten on the
7891 command line. Based on an original idea from Massimiliano Pala
7892 <madwolf@comune.modena.it>. The new option is called -extensions
7893 and can be applied to ca, req and x509. Also -reqexts to override
7894 the request extensions in req and -crlexts to override the crl extensions
7898 *) Add new feature to the SPKAC handling in ca. Now you can include
7899 the same field multiple times by preceding it by "XXXX." for example:
7902 this is the same syntax as used in the req config file.
7905 *) Allow certificate extensions to be added to certificate requests. These
7906 are specified in a 'req_extensions' option of the req section of the
7907 config file. They can be printed out with the -text option to req but
7908 are otherwise ignored at present.
7911 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7912 data read consists of only the final block it would not decrypted because
7913 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7914 A misplaced 'break' also meant the decrypted final block might not be
7915 copied until the next read.
7918 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7919 a few extra parameters to the DH structure: these will be useful if
7920 for example we want the value of 'q' or implement X9.42 DH.
7923 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7924 provides hooks that allow the default DSA functions or functions on a
7925 "per key" basis to be replaced. This allows hardware acceleration and
7926 hardware key storage to be handled without major modification to the
7927 library. Also added low level modexp hooks and CRYPTO_EX structure and
7928 associated functions.
7931 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7932 as "read only": it can't be written to and the buffer it points to will
7933 not be freed. Reading from a read only BIO is much more efficient than
7934 a normal memory BIO. This was added because there are several times when
7935 an area of memory needs to be read from a BIO. The previous method was
7936 to create a memory BIO and write the data to it, this results in two
7937 copies of the data and an O(n^2) reading algorithm. There is a new
7938 function BIO_new_mem_buf() which creates a read only memory BIO from
7939 an area of memory. Also modified the PKCS#7 routines to use read only
7943 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7944 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7945 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7946 but a retry condition occured while trying to read the rest.
7949 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7950 NID_pkcs7_encrypted by default: this was wrong since this should almost
7951 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7952 the encrypted data type: this is a more sensible place to put it and it
7953 allows the PKCS#12 code to be tidied up that duplicated this
7957 *) Changed obj_dat.pl script so it takes its input and output files on
7958 the command line. This should avoid shell escape redirection problems
7962 *) Initial support for certificate extension requests, these are included
7963 in things like Xenroll certificate requests. Included functions to allow
7964 extensions to be obtained and added.
7967 *) -crlf option to s_client and s_server for sending newlines as
7968 CRLF (as required by many protocols).
7971 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7973 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7974 [Ralf S. Engelschall]
7976 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7977 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7979 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7983 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7984 DH parameters/keys (q is lost during that conversion, but the resulting
7985 DH parameters contain its length).
7987 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7988 much faster than DH_generate_parameters (which creates parameters
7989 where p = 2*q + 1), and also the smaller q makes DH computations
7990 much more efficient (160-bit exponentiation instead of 1024-bit
7991 exponentiation); so this provides a convenient way to support DHE
7992 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7993 utter importance to use
7994 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7996 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7997 when such DH parameters are used, because otherwise small subgroup
7998 attacks may become possible!
8001 *) Avoid memory leak in i2d_DHparams.
8004 *) Allow the -k option to be used more than once in the enc program:
8005 this allows the same encrypted message to be read by multiple recipients.
8008 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8009 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8010 it will always use the numerical form of the OID, even if it has a short
8014 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8015 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8016 otherwise bn_mod_exp was called. In the case of hardware keys for example
8017 no private key components need be present and it might store extra data
8018 in the RSA structure, which cannot be accessed from bn_mod_exp.
8019 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8020 private key operations.
8023 *) Added support for SPARC Linux.
8026 *) pem_password_cb function type incompatibly changed from
8027 typedef int pem_password_cb(char *buf, int size, int rwflag);
8029 ....(char *buf, int size, int rwflag, void *userdata);
8030 so that applications can pass data to their callbacks:
8031 The PEM[_ASN1]_{read,write}... functions and macros now take an
8032 additional void * argument, which is just handed through whenever
8033 the password callback is called.
8034 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8036 New function SSL_CTX_set_default_passwd_cb_userdata.
8038 Compatibility note: As many C implementations push function arguments
8039 onto the stack in reverse order, the new library version is likely to
8040 interoperate with programs that have been compiled with the old
8041 pem_password_cb definition (PEM_whatever takes some data that
8042 happens to be on the stack as its last argument, and the callback
8043 just ignores this garbage); but there is no guarantee whatsoever that
8046 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8047 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8048 problems not only on Windows, but also on some Unix platforms.
8049 To avoid problematic command lines, these definitions are now in an
8050 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8051 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8054 *) MIPS III/IV assembler module is reimplemented.
8057 *) More DES library cleanups: remove references to srand/rand and
8058 delete an unused file.
8061 *) Add support for the the free Netwide assembler (NASM) under Win32,
8062 since not many people have MASM (ml) and it can be hard to obtain.
8063 This is currently experimental but it seems to work OK and pass all
8064 the tests. Check out INSTALL.W32 for info.
8067 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8068 without temporary keys kept an extra copy of the server key,
8069 and connections with temporary keys did not free everything in case
8073 *) New function RSA_check_key and new openssl rsa option -check
8074 for verifying the consistency of RSA keys.
8075 [Ulf Moeller, Bodo Moeller]
8077 *) Various changes to make Win32 compile work:
8078 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8079 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8080 comparison" warnings.
8081 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8084 *) Add a debugging option to PKCS#5 v2 key generation function: when
8085 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8086 derived keys are printed to stderr.
8089 *) Copy the flags in ASN1_STRING_dup().
8090 [Roman E. Pavlov <pre@mo.msk.ru>]
8092 *) The x509 application mishandled signing requests containing DSA
8093 keys when the signing key was also DSA and the parameters didn't match.
8095 It was supposed to omit the parameters when they matched the signing key:
8096 the verifying software was then supposed to automatically use the CA's
8097 parameters if they were absent from the end user certificate.
8099 Omitting parameters is no longer recommended. The test was also
8100 the wrong way round! This was probably due to unusual behaviour in
8101 EVP_cmp_parameters() which returns 1 if the parameters match.
8102 This meant that parameters were omitted when they *didn't* match and
8103 the certificate was useless. Certificates signed with 'ca' didn't have
8105 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8107 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8108 The interface is as follows:
8109 Applications can use
8110 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8111 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8112 "off" is now the default.
8113 The library internally uses
8114 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8115 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8116 to disable memory-checking temporarily.
8118 Some inconsistent states that previously were possible (and were
8119 even the default) are now avoided.
8121 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8122 with each memory chunk allocated; this is occasionally more helpful
8123 than just having a counter.
8125 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8127 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8131 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8132 which largely parallels "options", but is for changing API behaviour,
8133 whereas "options" are about protocol behaviour.
8134 Initial "mode" flags are:
8136 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8137 a single record has been written.
8138 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8139 retries use the same buffer location.
8140 (But all of the contents must be
8144 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8147 *) Fix problems with no-hmac etc.
8148 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8150 *) New functions RSA_get_default_method(), RSA_set_method() and
8151 RSA_get_method(). These allows replacement of RSA_METHODs without having
8152 to mess around with the internals of an RSA structure.
8155 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8156 Also really enable memory leak checks in openssl.c and in some
8158 [Chad C. Mulligan, Bodo Moeller]
8160 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8161 up the length of negative integers. This has now been simplified to just
8162 store the length when it is first determined and use it later, rather
8163 than trying to keep track of where data is copied and updating it to
8165 [Steve Henson, reported by Brien Wheeler
8166 <bwheeler@authentica-security.com>]
8168 *) Add a new function PKCS7_signatureVerify. This allows the verification
8169 of a PKCS#7 signature but with the signing certificate passed to the
8170 function itself. This contrasts with PKCS7_dataVerify which assumes the
8171 certificate is present in the PKCS#7 structure. This isn't always the
8172 case: certificates can be omitted from a PKCS#7 structure and be
8173 distributed by "out of band" means (such as a certificate database).
8176 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8177 function prototypes in pem.h, also change util/mkdef.pl to add the
8178 necessary function names.
8181 *) mk1mf.pl (used by Windows builds) did not properly read the
8182 options set by Configure in the top level Makefile, and Configure
8183 was not even able to write more than one option correctly.
8184 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8187 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8188 file to be loaded from a BIO or FILE pointer. The BIO version will
8189 for example allow memory BIOs to contain config info.
8192 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8193 Whoever hopes to achieve shared-library compatibility across versions
8194 must use this, not the compile-time macro.
8195 (Exercise 0.9.4: Which is the minimum library version required by
8197 Note: All this applies only to multi-threaded programs, others don't
8201 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8202 through a BIO pair triggered the default case, i.e.
8203 SSLerr(...,SSL_R_UNKNOWN_STATE).
8206 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8207 can use the SSL library even if none of the specific BIOs is
8211 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8212 for the encoded length.
8213 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8215 *) Add initial documentation of the X509V3 functions.
8218 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8219 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8220 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8221 secure PKCS#8 private key format with a high iteration count.
8224 *) Fix determination of Perl interpreter: A perl or perl5
8225 _directory_ in $PATH was also accepted as the interpreter.
8226 [Ralf S. Engelschall]
8228 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8229 wrong with it but it was very old and did things like calling
8230 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8234 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8235 to use the new extension code.
8238 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8239 with macros. This should make it easier to change their form, add extra
8240 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8244 *) Add to configuration table a new entry that can specify an alternative
8245 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8246 according to Mark Crispin <MRC@Panda.COM>.
8250 *) DES CBC did not update the IV. Weird.
8253 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8254 Changing the behaviour of the former might break existing programs --
8255 where IV updating is needed, des_ncbc_encrypt can be used.
8258 *) When bntest is run from "make test" it drives bc to check its
8259 calculations, as well as internally checking them. If an internal check
8260 fails, it needs to cause bc to give a non-zero result or make test carries
8261 on without noticing the failure. Fixed.
8264 *) DES library cleanups.
8267 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8268 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8269 ciphers. NOTE: although the key derivation function has been verified
8270 against some published test vectors it has not been extensively tested
8271 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8275 *) Instead of "mkdir -p", which is not fully portable, use new
8276 Perl script "util/mkdir-p.pl".
8279 *) Rewrite the way password based encryption (PBE) is handled. It used to
8280 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8281 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8282 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8283 the 'parameter' field of the AlgorithmIdentifier is passed to the
8284 underlying key generation function so it must do its own ASN1 parsing.
8285 This has also changed the EVP_PBE_CipherInit() function which now has a
8286 'parameter' argument instead of literal salt and iteration count values
8287 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8290 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8291 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8292 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8293 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8294 value was just used as a "magic string" and not used directly its
8295 value doesn't matter.
8298 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8302 *) "linux-sparc64" configuration (ultrapenguin).
8303 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8304 "linux-sparc" configuration.
8305 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8307 *) config now generates no-xxx options for missing ciphers.
8310 *) Support the EBCDIC character set (work in progress).
8311 File ebcdic.c not yet included because it has a different license.
8312 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8314 *) Support BS2000/OSD-POSIX.
8315 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8317 *) Make callbacks for key generation use void * instead of char *.
8320 *) Make S/MIME samples compile (not yet tested).
8323 *) Additional typesafe stacks.
8326 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8330 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8332 *) New configuration variant "sco5-gcc".
8334 *) Updated some demos.
8335 [Sean O Riordain, Wade Scholine]
8337 *) Add missing BIO_free at exit of pkcs12 application.
8340 *) Fix memory leak in conf.c.
8343 *) Updates for Win32 to assembler version of MD5.
8346 *) Set #! path to perl in apps/der_chop to where we found it
8347 instead of using a fixed path.
8350 *) SHA library changes for irix64-mips4-cc.
8353 *) Improvements for VMS support.
8357 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8359 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8360 This also avoids the problems with SC4.2 and unpatched SC5.
8361 [Andy Polyakov <appro@fy.chalmers.se>]
8363 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8364 These are required because of the typesafe stack would otherwise break
8365 existing code. If old code used a structure member which used to be STACK
8366 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8367 sk_num or sk_value it would produce an error because the num, data members
8368 are not present in STACK_OF. Now it just produces a warning. sk_set
8369 replaces the old method of assigning a value to sk_value
8370 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8371 that does this will no longer work (and should use sk_set instead) but
8372 this could be regarded as a "questionable" behaviour anyway.
8375 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8376 correctly handle encrypted S/MIME data.
8379 *) Change type of various DES function arguments from des_cblock
8380 (which means, in function argument declarations, pointer to char)
8381 to des_cblock * (meaning pointer to array with 8 char elements),
8382 which allows the compiler to do more typechecking; it was like
8383 that back in SSLeay, but with lots of ugly casts.
8385 Introduce new type const_des_cblock.
8388 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8389 problems: find RecipientInfo structure that matches recipient certificate
8390 and initialise the ASN1 structures properly based on passed cipher.
8393 *) Belatedly make the BN tests actually check the results.
8396 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8397 to and from BNs: it was completely broken. New compilation option
8398 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8399 key elements as negative integers.
8402 *) Reorganize and speed up MD5.
8403 [Andy Polyakov <appro@fy.chalmers.se>]
8406 [Richard Levitte <richard@levitte.org>]
8408 *) New option -out to asn1parse to allow the parsed structure to be
8409 output to a file. This is most useful when combined with the -strparse
8410 option to examine the output of things like OCTET STRINGS.
8413 *) Make SSL library a little more fool-proof by not requiring any longer
8414 that SSL_set_{accept,connect}_state be called before
8415 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8416 in many applications because usually everything *appeared* to work as
8417 intended anyway -- now it really works as intended).
8420 *) Move openssl.cnf out of lib/.
8423 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8424 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8425 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8426 [Ralf S. Engelschall]
8428 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8429 handle PKCS#7 enveloped data properly.
8430 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8432 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8433 copying pointers. The cert_st handling is changed by this in
8434 various ways (and thus what used to be known as ctx->default_cert
8435 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8436 any longer when s->cert does not give us what we need).
8437 ssl_cert_instantiate becomes obsolete by this change.
8438 As soon as we've got the new code right (possibly it already is?),
8439 we have solved a couple of bugs of the earlier code where s->cert
8440 was used as if it could not have been shared with other SSL structures.
8442 Note that using the SSL API in certain dirty ways now will result
8443 in different behaviour than observed with earlier library versions:
8444 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8445 does not influence s as it used to.
8447 In order to clean up things more thoroughly, inside SSL_SESSION
8448 we don't use CERT any longer, but a new structure SESS_CERT
8449 that holds per-session data (if available); currently, this is
8450 the peer's certificate chain and, for clients, the server's certificate
8451 and temporary key. CERT holds only those values that can have
8452 meaningful defaults in an SSL_CTX.
8455 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8456 from the internal representation. Various PKCS#7 fixes: remove some
8457 evil casts and set the enc_dig_alg field properly based on the signing
8461 *) Allow PKCS#12 password to be set from the command line or the
8462 environment. Let 'ca' get its config file name from the environment
8463 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8467 *) Allow certificate policies extension to use an IA5STRING for the
8468 organization field. This is contrary to the PKIX definition but
8469 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8473 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8474 without disallowing inline assembler and the like for non-pedantic builds.
8477 *) Support Borland C++ builder.
8478 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8483 *) SHA-1 cleanups and performance enhancements.
8484 [Andy Polyakov <appro@fy.chalmers.se>]
8486 *) Sparc v8plus assembler for the bignum library.
8487 [Andy Polyakov <appro@fy.chalmers.se>]
8489 *) Accept any -xxx and +xxx compiler options in Configure.
8492 *) Update HPUX configuration.
8495 *) Add missing sk_<type>_unshift() function to safestack.h
8496 [Ralf S. Engelschall]
8498 *) New function SSL_CTX_use_certificate_chain_file that sets the
8499 "extra_cert"s in addition to the certificate. (This makes sense
8500 only for "PEM" format files, as chains as a whole are not
8504 *) Support verify_depth from the SSL API.
8505 x509_vfy.c had what can be considered an off-by-one-error:
8506 Its depth (which was not part of the external interface)
8507 was actually counting the number of certificates in a chain;
8508 now it really counts the depth.
8511 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8512 instead of X509err, which often resulted in confusing error
8513 messages since the error codes are not globally unique
8514 (e.g. an alleged error in ssl3_accept when a certificate
8515 didn't match the private key).
8517 *) New function SSL_CTX_set_session_id_context that allows to set a default
8518 value (so that you don't need SSL_set_session_id_context for each
8519 connection using the SSL_CTX).
8522 *) OAEP decoding bug fix.
8525 *) Support INSTALL_PREFIX for package builders, as proposed by
8529 *) New Configure options "threads" and "no-threads". For systems
8530 where the proper compiler options are known (currently Solaris
8531 and Linux), "threads" is the default.
8534 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8537 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8538 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8539 such as /usr/local/bin.
8542 *) "make linux-shared" to build shared libraries.
8543 [Niels Poppe <niels@netbox.org>]
8545 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8548 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8549 extension adding in x509 utility.
8552 *) Remove NOPROTO sections and error code comments.
8555 *) Partial rewrite of the DEF file generator to now parse the ANSI
8559 *) New Configure options --prefix=DIR and --openssldir=DIR.
8562 *) Complete rewrite of the error code script(s). It is all now handled
8563 by one script at the top level which handles error code gathering,
8564 header rewriting and C source file generation. It should be much better
8565 than the old method: it now uses a modified version of Ulf's parser to
8566 read the ANSI prototypes in all header files (thus the old K&R definitions
8567 aren't needed for error creation any more) and do a better job of
8568 translating function codes into names. The old 'ASN1 error code imbedded
8569 in a comment' is no longer necessary and it doesn't use .err files which
8570 have now been deleted. Also the error code call doesn't have to appear all
8571 on one line (which resulted in some large lines...).
8574 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8577 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8578 0 (which usually indicates a closed connection), but continue reading.
8581 *) Fix some race conditions.
8584 *) Add support for CRL distribution points extension. Add Certificate
8585 Policies and CRL distribution points documentation.
8588 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8591 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8592 8 of keying material. Merlin has also confirmed interop with this fix
8593 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8594 [Merlin Hughes <merlin@baltimore.ie>]
8596 *) Fix lots of warnings.
8597 [Richard Levitte <levitte@stacken.kth.se>]
8599 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8600 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8601 [Richard Levitte <levitte@stacken.kth.se>]
8603 *) Fix problems with sizeof(long) == 8.
8604 [Andy Polyakov <appro@fy.chalmers.se>]
8606 *) Change functions to ANSI C.
8609 *) Fix typos in error codes.
8610 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8612 *) Remove defunct assembler files from Configure.
8615 *) SPARC v8 assembler BIGNUM implementation.
8616 [Andy Polyakov <appro@fy.chalmers.se>]
8618 *) Support for Certificate Policies extension: both print and set.
8619 Various additions to support the r2i method this uses.
8622 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8623 return a const string when you are expecting an allocated buffer.
8626 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8627 types DirectoryString and DisplayText.
8630 *) Add code to allow r2i extensions to access the configuration database,
8631 add an LHASH database driver and add several ctx helper functions.
8634 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8635 fail when they extended the size of a BIGNUM.
8638 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8639 support typesafe stack.
8642 *) Fix typo in SSL_[gs]et_options().
8643 [Nils Frostberg <nils@medcom.se>]
8645 *) Delete various functions and files that belonged to the (now obsolete)
8646 old X509V3 handling code.
8649 *) New Configure option "rsaref".
8652 *) Don't auto-generate pem.h.
8655 *) Introduce type-safe ASN.1 SETs.
8658 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8659 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8661 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8662 that links with OpenSSL (well at least cause lots of warnings), but fear
8663 not: the conversion is trivial, and it eliminates loads of evil casts. A
8664 few STACKed things have been converted already. Feel free to convert more.
8665 In the fullness of time, I'll do away with the STACK type altogether.
8668 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8669 specified in <certfile> by updating the entry in the index.txt file.
8670 This way one no longer has to edit the index.txt file manually for
8671 revoking a certificate. The -revoke option does the gory details now.
8672 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8674 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8675 `-text' option at all and this way the `-noout -text' combination was
8676 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8677 [Ralf S. Engelschall]
8679 *) Make sure a corresponding plain text error message exists for the
8680 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8681 verify callback function determined that a certificate was revoked.
8682 [Ralf S. Engelschall]
8684 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8685 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8686 all available cipers including rc5, which was forgotten until now.
8687 In order to let the testing shell script know which algorithms
8688 are available, a new (up to now undocumented) command
8689 "openssl list-cipher-commands" is used.
8692 *) Bugfix: s_client occasionally would sleep in select() when
8693 it should have checked SSL_pending() first.
8696 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8697 the raw DSA values prior to ASN.1 encoding.
8700 *) Tweaks to Configure
8701 [Niels Poppe <niels@netbox.org>]
8703 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8707 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8710 *) New config option to avoid instructions that are illegal on the 80386.
8711 The default code is faster, but requires at least a 486.
8714 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8715 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8716 same as SSL2_VERSION anyway.
8719 *) New "-showcerts" option for s_client.
8722 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8723 application. Various cleanups and fixes.
8726 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8727 modify error routines to work internally. Add error codes and PBE init
8728 to library startup routines.
8731 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8732 packing functions to asn1 and evp. Changed function names and error
8733 codes along the way.
8736 *) PKCS12 integration: and so it begins... First of several patches to
8737 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8738 objects to objects.h
8741 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8742 and display support for Thawte strong extranet extension.
8745 *) Add LinuxPPC support.
8746 [Jeff Dubrule <igor@pobox.org>]
8748 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8749 bn_div_words in alpha.s.
8750 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8752 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8753 OAEP isn't supported when OpenSSL is built with RSAref.
8754 [Ulf Moeller <ulf@fitug.de>]
8756 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8757 so they no longer are missing under -DNOPROTO.
8758 [Soren S. Jorvang <soren@t.dk>]
8761 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8763 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8764 doesn't work when the session is reused. Coming soon!
8767 *) Fix a security hole, that allows sessions to be reused in the wrong
8768 context thus bypassing client cert protection! All software that uses
8769 client certs and session caches in multiple contexts NEEDS PATCHING to
8770 allow session reuse! A fuller solution is in the works.
8771 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8773 *) Some more source tree cleanups (removed obsolete files
8774 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8775 permission on "config" script to be executable) and a fix for the INSTALL
8777 [Ulf Moeller <ulf@fitug.de>]
8779 *) Remove some legacy and erroneous uses of malloc, free instead of
8781 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8783 *) Make rsa_oaep_test return non-zero on error.
8784 [Ulf Moeller <ulf@fitug.de>]
8786 *) Add support for native Solaris shared libraries. Configure
8787 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8788 if someone would make that last step automatic.
8789 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8791 *) ctx_size was not built with the right compiler during "make links". Fixed.
8794 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8795 except NULL ciphers". This means the default cipher list will no longer
8796 enable NULL ciphers. They need to be specifically enabled e.g. with
8797 the string "DEFAULT:eNULL".
8800 *) Fix to RSA private encryption routines: if p < q then it would
8801 occasionally produce an invalid result. This will only happen with
8802 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8805 *) Be less restrictive and allow also `perl util/perlpath.pl
8806 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8807 because this way one can also use an interpreter named `perl5' (which is
8808 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8809 installed as `perl').
8810 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8812 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8813 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8815 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8816 advapi32.lib to Win32 build and change the pem test comparision
8817 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8818 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8819 and crypto/des/ede_cbcm_enc.c.
8822 *) DES quad checksum was broken on big-endian architectures. Fixed.
8825 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8826 Win32 test batch file so it (might) work again. The Win32 test batch file
8827 is horrible: I feel ill....
8830 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8831 in e_os.h. Audit of header files to check ANSI and non ANSI
8832 sections: 10 functions were absent from non ANSI section and not exported
8833 from Windows DLLs. Fixed up libeay.num for new functions.
8836 *) Make `openssl version' output lines consistent.
8837 [Ralf S. Engelschall]
8839 *) Fix Win32 symbol export lists for BIO functions: Added
8840 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8841 to ms/libeay{16,32}.def.
8842 [Ralf S. Engelschall]
8844 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8845 fine under Unix and passes some trivial tests I've now added. But the
8846 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8847 added to make sure no one expects that this stuff really works in the
8848 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8849 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8851 [Ralf S. Engelschall]
8853 *) Fix the generation of two part addresses in perl.
8854 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8856 *) Add config entry for Linux on MIPS.
8857 [John Tobey <jtobey@channel1.com>]
8859 *) Make links whenever Configure is run, unless we are on Windoze.
8862 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8863 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8867 *) Add a useful kludge to allow package maintainers to specify compiler and
8868 other platforms details on the command line without having to patch the
8869 Configure script everytime: One now can use ``perl Configure
8870 <id>:<details>'', i.e. platform ids are allowed to have details appended
8871 to them (seperated by colons). This is treated as there would be a static
8872 pre-configured entry in Configure's %table under key <id> with value
8873 <details> and ``perl Configure <id>'' is called. So, when you want to
8874 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8875 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8876 now, which overrides the FreeBSD-elf entry on-the-fly.
8877 [Ralf S. Engelschall]
8879 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8882 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8883 on the `perl Configure ...' command line. This way one can compile
8884 OpenSSL libraries with Position Independent Code (PIC) which is needed
8885 for linking it into DSOs.
8886 [Ralf S. Engelschall]
8888 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8892 *) Cleaned up the LICENSE document: The official contact for any license
8893 questions now is the OpenSSL core team under openssl-core@openssl.org.
8894 And add a paragraph about the dual-license situation to make sure people
8895 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8896 to the OpenSSL toolkit.
8897 [Ralf S. Engelschall]
8899 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8900 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8901 Additonally cleaned up the `make links' target: Remove unnecessary
8902 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8903 to speed processing and no longer clutter the display with confusing
8904 stuff. Instead only the actually done links are displayed.
8905 [Ralf S. Engelschall]
8907 *) Permit null encryption ciphersuites, used for authentication only. It used
8908 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8909 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8913 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8914 signed attributes when verifying signatures (this would break them),
8915 the detached data encoding was wrong and public keys obtained using
8916 X509_get_pubkey() weren't freed.
8919 *) Add text documentation for the BUFFER functions. Also added a work around
8920 to a Win95 console bug. This was triggered by the password read stuff: the
8921 last character typed gets carried over to the next fread(). If you were
8922 generating a new cert request using 'req' for example then the last
8923 character of the passphrase would be CR which would then enter the first
8927 *) Added the new `Includes OpenSSL Cryptography Software' button as
8928 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8929 button and can be used by applications based on OpenSSL to show the
8930 relationship to the OpenSSL project.
8931 [Ralf S. Engelschall]
8933 *) Remove confusing variables in function signatures in files
8934 ssl/ssl_lib.c and ssl/ssl.h.
8935 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8937 *) Don't install bss_file.c under PREFIX/include/
8938 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8940 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8941 functions that return function pointers and has support for NT specific
8942 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8943 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8944 unsigned to signed types: this was killing the Win32 compile.
8947 *) Add new certificate file to stack functions,
8948 SSL_add_dir_cert_subjects_to_stack() and
8949 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8950 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8951 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8952 This means that Apache-SSL and similar packages don't have to mess around
8953 to add as many CAs as they want to the preferred list.
8956 *) Experiment with doxygen documentation. Currently only partially applied to
8958 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8959 openssl.doxy as the configuration file.
8962 *) Get rid of remaining C++-style comments which strict C compilers hate.
8963 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8965 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8966 compiled in by default: it has problems with large keys.
8969 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8970 DH private keys and/or callback functions which directly correspond to
8971 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8972 is needed for applications which have to configure certificates on a
8973 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8975 For the RSA certificate situation is makes no difference, but
8976 for the DSA certificate situation this fixes the "no shared cipher"
8977 problem where the OpenSSL cipher selection procedure failed because the
8978 temporary keys were not overtaken from the context and the API provided
8979 no way to reconfigure them.
8980 The new functions now let applications reconfigure the stuff and they
8981 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8982 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8983 non-public-API function ssl_cert_instantiate() is used as a helper
8984 function and also to reduce code redundancy inside ssl_rsa.c.
8985 [Ralf S. Engelschall]
8987 *) Move s_server -dcert and -dkey options out of the undocumented feature
8988 area because they are useful for the DSA situation and should be
8989 recognized by the users.
8990 [Ralf S. Engelschall]
8992 *) Fix the cipher decision scheme for export ciphers: the export bits are
8993 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8994 SSL_EXP_MASK. So, the original variable has to be used instead of the
8995 already masked variable.
8996 [Richard Levitte <levitte@stacken.kth.se>]
8998 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8999 [Richard Levitte <levitte@stacken.kth.se>]
9001 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9002 from `int' to `unsigned int' because it's a length and initialized by
9003 EVP_DigestFinal() which expects an `unsigned int *'.
9004 [Richard Levitte <levitte@stacken.kth.se>]
9006 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9007 script. Instead use the usual Shell->Perl transition trick.
9008 [Ralf S. Engelschall]
9010 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9011 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9012 -noout -modulus' as it's already the case for `openssl rsa -noout
9013 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9014 currently the public key is printed (a decision which was already done by
9015 `openssl dsa -modulus' in the past) which serves a similar purpose.
9016 Additionally the NO_RSA no longer completely removes the whole -modulus
9017 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9019 [Ralf S. Engelschall]
9021 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9022 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9023 [Arne Ansper <arne@ats.cyber.ee>]
9025 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9026 to be added. Now both 'req' and 'ca' can use new objects defined in the
9030 *) Add cool BIO that does syslog (or event log on NT).
9031 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9033 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9034 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9035 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9036 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9039 *) Add preliminary config info for new extension code.
9042 *) Make RSA_NO_PADDING really use no padding.
9043 [Ulf Moeller <ulf@fitug.de>]
9045 *) Generate errors when private/public key check is done.
9048 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9049 for some CRL extensions and new objects added.
9052 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9053 key usage extension and fuller support for authority key id.
9056 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9057 padding method for RSA, which is recommended for new applications in PKCS
9058 #1 v2.0 (RFC 2437, October 1998).
9059 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9060 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9061 against Bleichbacher's attack on RSA.
9062 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9065 *) Updates to the new SSL compression code
9066 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9068 *) Fix so that the version number in the master secret, when passed
9069 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9070 (because the server will not accept higher), that the version number
9071 is 0x03,0x01, not 0x03,0x00
9072 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9074 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9075 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9076 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9079 *) Support for RAW extensions where an arbitrary extension can be
9080 created by including its DER encoding. See apps/openssl.cnf for
9084 *) Make sure latest Perl versions don't interpret some generated C array
9085 code as Perl array code in the crypto/err/err_genc.pl script.
9086 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9088 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9089 not many people have the assembler. Various Win32 compilation fixes and
9090 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9094 *) Modify configure script 'Configure' to automatically create crypto/date.h
9095 file under Win32 and also build pem.h from pem.org. New script
9096 util/mkfiles.pl to create the MINFO file on environments that can't do a
9097 'make files': perl util/mkfiles.pl >MINFO should work.
9100 *) Major rework of DES function declarations, in the pursuit of correctness
9101 and purity. As a result, many evil casts evaporated, and some weirdness,
9102 too. You may find this causes warnings in your code. Zapping your evil
9103 casts will probably fix them. Mostly.
9106 *) Fix for a typo in asn1.h. Bug fix to object creation script
9107 obj_dat.pl. It considered a zero in an object definition to mean
9108 "end of object": none of the objects in objects.h have any zeros
9109 so it wasn't spotted.
9110 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9112 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9113 Masking (CBCM). In the absence of test vectors, the best I have been able
9114 to do is check that the decrypt undoes the encrypt, so far. Send me test
9115 vectors if you have them.
9118 *) Correct calculation of key length for export ciphers (too much space was
9119 allocated for null ciphers). This has not been tested!
9122 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9123 message is now correct (it understands "crypto" and "ssl" on its
9124 command line). There is also now an "update" option. This will update
9125 the util/ssleay.num and util/libeay.num files with any new functions.
9127 perl util/mkdef.pl crypto ssl update
9128 it will update them.
9131 *) Overhauled the Perl interface (perl/*):
9132 - ported BN stuff to OpenSSL's different BN library
9133 - made the perl/ source tree CVS-aware
9134 - renamed the package from SSLeay to OpenSSL (the files still contain
9135 their history because I've copied them in the repository)
9136 - removed obsolete files (the test scripts will be replaced
9137 by better Test::Harness variants in the future)
9138 [Ralf S. Engelschall]
9140 *) First cut for a very conservative source tree cleanup:
9141 1. merge various obsolete readme texts into doc/ssleay.txt
9142 where we collect the old documents and readme texts.
9143 2. remove the first part of files where I'm already sure that we no
9144 longer need them because of three reasons: either they are just temporary
9145 files which were left by Eric or they are preserved original files where
9146 I've verified that the diff is also available in the CVS via "cvs diff
9147 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9148 the crypto/md/ stuff).
9149 [Ralf S. Engelschall]
9151 *) More extension code. Incomplete support for subject and issuer alt
9152 name, issuer and authority key id. Change the i2v function parameters
9153 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9154 what that's for :-) Fix to ASN1 macro which messed up
9155 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9158 *) Preliminary support for ENUMERATED type. This is largely copied from the
9162 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9163 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9165 *) Make sure `make rehash' target really finds the `openssl' program.
9166 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9168 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9169 like to hear about it if this slows down other processors.
9172 *) Add CygWin32 platform information to Configure script.
9173 [Alan Batie <batie@aahz.jf.intel.com>]
9175 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9176 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9178 *) New program nseq to manipulate netscape certificate sequences
9181 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9185 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9186 but the BN code had some problems that would cause failures when
9187 doing certificate verification and some other functions.
9188 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9190 *) Add ASN1 and PEM code to support netscape certificate sequences.
9193 *) Add ASN1 and PEM code to support netscape certificate sequences.
9196 *) Add several PKIX and private extended key usage OIDs.
9199 *) Modify the 'ca' program to handle the new extension code. Modify
9200 openssl.cnf for new extension format, add comments.
9203 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9204 and add a sample to openssl.cnf so req -x509 now adds appropriate
9208 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9209 error code, add initial support to X509_print() and x509 application.
9212 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9213 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9214 stuff is currently isolated and isn't even compiled yet.
9217 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9218 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9219 Removed the versions check from X509 routines when loading extensions:
9220 this allows certain broken certificates that don't set the version
9221 properly to be processed.
9224 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9225 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9226 can still be regenerated with "make depend".
9229 *) Spelling mistake in C version of CAST-128.
9230 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9232 *) Changes to the error generation code. The perl script err-code.pl
9233 now reads in the old error codes and retains the old numbers, only
9234 adding new ones if necessary. It also only changes the .err files if new
9235 codes are added. The makefiles have been modified to only insert errors
9236 when needed (to avoid needlessly modifying header files). This is done
9237 by only inserting errors if the .err file is newer than the auto generated
9238 C file. To rebuild all the error codes from scratch (the old behaviour)
9239 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9240 or delete all the .err files.
9243 *) CAST-128 was incorrectly implemented for short keys. The C version has
9244 been fixed, but is untested. The assembler versions are also fixed, but
9245 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9246 to regenerate it if needed.
9247 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9248 Hagino <itojun@kame.net>]
9250 *) File was opened incorrectly in randfile.c.
9251 [Ulf Möller <ulf@fitug.de>]
9253 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9254 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9255 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9256 al: it's just almost always a UTCTime. Note this patch adds new error
9257 codes so do a "make errors" if there are problems.
9260 *) Correct Linux 1 recognition in config.
9261 [Ulf Möller <ulf@fitug.de>]
9263 *) Remove pointless MD5 hash when using DSA keys in ca.
9264 [Anonymous <nobody@replay.com>]
9266 *) Generate an error if given an empty string as a cert directory. Also
9267 generate an error if handed NULL (previously returned 0 to indicate an
9268 error, but didn't set one).
9269 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9271 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9274 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9275 parameters. This was causing a warning which killed off the Win32 compile.
9278 *) Remove C++ style comments from crypto/bn/bn_local.h.
9279 [Neil Costigan <neil.costigan@celocom.com>]
9281 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9282 based on a text string, looking up short and long names and finally
9283 "dot" format. The "dot" format stuff didn't work. Added new function
9284 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9285 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9286 OID is not part of the table.
9289 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9290 X509_LOOKUP_by_alias().
9293 *) Sort openssl functions by name.
9296 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9297 encryption from sample DSA keys (in case anyone is interested the password
9301 *) Make _all_ *_free functions accept a NULL pointer.
9302 [Frans Heymans <fheymans@isaserver.be>]
9304 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9306 [Anonymous <nobody@replay.com>]
9308 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9309 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9311 *) Don't blow it for numeric -newkey arguments to apps/req.
9312 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9314 *) Temp key "for export" tests were wrong in s3_srvr.c.
9315 [Anonymous <nobody@replay.com>]
9317 *) Add prototype for temp key callback functions
9318 SSL_CTX_set_tmp_{rsa,dh}_callback().
9321 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9322 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9325 *) X509_name_add_entry() freed the wrong thing after an error.
9326 [Arne Ansper <arne@ats.cyber.ee>]
9328 *) rsa_eay.c would attempt to free a NULL context.
9329 [Arne Ansper <arne@ats.cyber.ee>]
9331 *) BIO_s_socket() had a broken should_retry() on Windoze.
9332 [Arne Ansper <arne@ats.cyber.ee>]
9334 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9335 [Arne Ansper <arne@ats.cyber.ee>]
9337 *) Make sure the already existing X509_STORE->depth variable is initialized
9338 in X509_STORE_new(), but document the fact that this variable is still
9339 unused in the certificate verification process.
9340 [Ralf S. Engelschall]
9342 *) Fix the various library and apps files to free up pkeys obtained from
9343 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9346 *) Fix reference counting in X509_PUBKEY_get(). This makes
9347 demos/maurice/example2.c work, amongst others, probably.
9348 [Steve Henson and Ben Laurie]
9350 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9351 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9352 are no longer created. This way we have a single and consistent command
9353 line interface `openssl <command>', similar to `cvs <command>'.
9354 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9356 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9357 BIT STRING wrapper always have zero unused bits.
9360 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9363 *) Make the top-level INSTALL documentation easier to understand.
9366 *) Makefiles updated to exit if an error occurs in a sub-directory
9367 make (including if user presses ^C) [Paul Sutton]
9369 *) Make Montgomery context stuff explicit in RSA data structure.
9372 *) Fix build order of pem and err to allow for generated pem.h.
9375 *) Fix renumbering bug in X509_NAME_delete_entry().
9378 *) Enhanced the err-ins.pl script so it makes the error library number
9379 global and can add a library name. This is needed for external ASN1 and
9380 other error libraries.
9383 *) Fixed sk_insert which never worked properly.
9386 *) Fix ASN1 macros so they can handle indefinite length construted
9387 EXPLICIT tags. Some non standard certificates use these: they can now
9391 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9392 into a single doc/ssleay.txt bundle. This way the information is still
9393 preserved but no longer messes up this directory. Now it's new room for
9394 the new set of documenation files.
9395 [Ralf S. Engelschall]
9397 *) SETs were incorrectly DER encoded. This was a major pain, because they
9398 shared code with SEQUENCEs, which aren't coded the same. This means that
9399 almost everything to do with SETs or SEQUENCEs has either changed name or
9400 number of arguments.
9401 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9403 *) Fix test data to work with the above.
9406 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9407 was already fixed by Eric for 0.9.1 it seems.
9408 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9410 *) Autodetect FreeBSD3.
9413 *) Fix various bugs in Configure. This affects the following platforms:
9417 unixware-2.0-pentium
9421 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9422 before they are needed.
9425 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9429 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9431 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9432 changed SSLeay to OpenSSL in version strings.
9433 [Ralf S. Engelschall]
9435 *) Some fixups to the top-level documents.
9438 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9439 because the symlink to include/ was missing.
9440 [Ralf S. Engelschall]
9442 *) Incorporated the popular no-RSA/DSA-only patches
9443 which allow to compile a RSA-free SSLeay.
9444 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9446 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9447 when "ssleay" is still not found.
9448 [Ralf S. Engelschall]
9450 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9451 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9453 *) Updated the README file.
9454 [Ralf S. Engelschall]
9456 *) Added various .cvsignore files in the CVS repository subdirs
9457 to make a "cvs update" really silent.
9458 [Ralf S. Engelschall]
9460 *) Recompiled the error-definition header files and added
9461 missing symbols to the Win32 linker tables.
9462 [Ralf S. Engelschall]
9464 *) Cleaned up the top-level documents;
9465 o new files: CHANGES and LICENSE
9466 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9467 o merged COPYRIGHT into LICENSE
9468 o removed obsolete TODO file
9469 o renamed MICROSOFT to INSTALL.W32
9470 [Ralf S. Engelschall]
9472 *) Removed dummy files from the 0.9.1b source tree:
9473 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9474 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9475 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9476 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9477 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9478 [Ralf S. Engelschall]
9480 *) Added various platform portability fixes.
9483 *) The Genesis of the OpenSSL rpject:
9484 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9485 Young and Tim J. Hudson created while they were working for C2Net until
9487 [The OpenSSL Project]
9490 Changes between 0.9.0b and 0.9.1b [not released]
9492 *) Updated a few CA certificates under certs/
9495 *) Changed some BIGNUM api stuff.
9498 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9499 DGUX x86, Linux Alpha, etc.
9502 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9503 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9507 *) Add -strparse option to asn1pars program which parses nested
9509 [Dr Stephen Henson <shenson@bigfoot.com>]
9511 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9514 *) DSA fix for "ca" program.
9517 *) Added "-genkey" option to "dsaparam" program.
9520 *) Added RIPE MD160 (rmd160) message digest.
9523 *) Added -a (all) option to "ssleay version" command.
9526 *) Added PLATFORM define which is the id given to Configure.
9529 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9532 *) Extended the ASN.1 parser routines.
9535 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9538 *) Added a BN_CTX to the BN library.
9541 *) Fixed the weak key values in DES library
9544 *) Changed API in EVP library for cipher aliases.
9547 *) Added support for RC2/64bit cipher.
9550 *) Converted the lhash library to the crypto/mem.c functions.
9553 *) Added more recognized ASN.1 object ids.
9556 *) Added more RSA padding checks for SSL/TLS.
9559 *) Added BIO proxy/filter functionality.
9562 *) Added extra_certs to SSL_CTX which can be used
9563 send extra CA certificates to the client in the CA cert chain sending
9564 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9567 *) Now Fortezza is denied in the authentication phase because
9568 this is key exchange mechanism is not supported by SSLeay at all.
9571 *) Additional PKCS1 checks.
9574 *) Support the string "TLSv1" for all TLS v1 ciphers.
9577 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9578 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9581 *) Fixed a few memory leaks.
9584 *) Fixed various code and comment typos.
9587 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9588 bytes sent in the client random.
9589 [Edward Bishop <ebishop@spyglass.com>]