5 Changes between 1.0.0 and 1.1.0 [xx XXX xxxx]
7 *) Make generated asm have non-executable stack.
8 [Contributed by Google <agl@google.com>]
10 *) New function OPENSSL_gmtime_diff to find the difference in days
11 and seconds between two tm structures. This will be used to provide
12 additional functionality for ASN1_TIME.
15 *) New -sigopt option to the ca, req and x509 utilities. Additional
16 signature parameters can be passed using this option and in
20 *) Add RSA PSS signing function. This will generate and set the
21 appropriate AlgorithmIdentifiers for PSS based on those in the
22 corresponding EVP_MD_CTX structure. No application support yet.
25 *) Support for companion algorithm specific ASN1 signing routines.
26 New function ASN1_item_sign_ctx() signs a pre-initialised
27 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
28 the appropriate parameters.
31 *) Add new algorithm specific ASN1 verification initialisation function
32 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
33 handling will be the same no matter what EVP_PKEY_METHOD is used.
34 Add a PSS handler to support verification of PSS signatures: checked
35 against a number of sample certificates.
38 *) Add signature printing for PSS. Add PSS OIDs.
39 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
41 *) Add algorithm specific signature printing. An individual ASN1 method
42 can now print out signatures instead of the standard hex dump.
44 More complex signatures (e.g. PSS) can print out more meaningful
45 information. Include DSA version that prints out the signature
49 *) Add -trusted_first option which attempts to find certificates in the
50 trusted store even if an untrusted chain is also supplied.
53 *) Initial experimental support for explicitly trusted non-root CAs.
54 OpenSSL still tries to build a complete chain to a root but if an
55 intermediate CA has a trust setting included that is used. The first
56 setting is used: whether to trust or reject.
59 *) New -verify_name option in command line utilities to set verification
63 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
64 Add CMAC pkey methods.
67 *) Experiemental regnegotiation in s_server -www mode. If the client
68 browses /reneg connection is renegotiated. If /renegcert it is
69 renegotiated requesting a certificate.
72 *) Add an "external" session cache for debugging purposes to s_server. This
73 should help trace issues which normally are only apparent in deployed
74 multi-process servers.
77 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
78 a few changes are required:
80 Add SSL_OP_NO_TLSv1_1 flag.
82 Update version checking logic to handle version 1.1.
83 Add explicit IV handling (ported from DTLS code).
84 Add command line options to s_client/s_server.
87 *) Experiemental password based recipient info support for CMS library:
91 *) Split password based encryption into PBES2 and PBKDF2 functions. This
92 neatly separates the code into cipher and PBE sections and is required
93 for some algorithms that split PBES2 into separate pieces (such as
97 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
98 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
99 BIO_set_cipher() and some obscure PEM functions were changed so they
100 can now return an error. The RAND changes required a change to the
101 RAND_METHOD structure.
104 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
105 a gcc attribute to warn if the result of a function is ignored. This
106 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
107 whose return value is often ignored.
110 Changes between 0.9.8n and 1.0.0 [xx XXX xxxx]
112 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
113 context. The operation can be customised via the ctrl mechanism in
114 case ENGINEs want to include additional functionality.
117 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
120 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
121 output hashes compatible with older versions of OpenSSL.
122 [Willy Weisz <weisz@vcpc.univie.ac.at>]
124 *) Fix compression algorithm handling: if resuming a session use the
125 compression algorithm of the resumed session instead of determining
126 it from client hello again. Don't allow server to change algorithm.
129 *) Add load_crls() function to apps tidying load_certs() too. Add option
130 to verify utility to allow additional CRLs to be included.
133 *) Update OCSP request code to permit adding custom headers to the request:
134 some responders need this.
137 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
139 [Julia Lawall <julia@diku.dk>]
141 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
142 needlessly dereferenced structures, used obsolete functions and
143 didn't handle all updated verify codes correctly.
146 *) Disable MD2 in the default configuration.
149 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
150 indicate the initial BIO being pushed or popped. This makes it possible
151 to determine whether the BIO is the one explicitly called or as a result
152 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
153 it handles reference counts correctly and doesn't zero out the I/O bio
154 when it is not being explicitly popped. WARNING: applications which
155 included workarounds for the old buggy behaviour will need to be modified
156 or they could free up already freed BIOs.
159 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
160 renaming to all platforms (within the 0.9.8 branch, this was
161 done conditionally on Netware platforms to avoid a name clash).
162 [Guenter <lists@gknw.net>]
164 *) Add ECDHE and PSK support to DTLS.
165 [Michael Tuexen <tuexen@fh-muenster.de>]
167 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
171 *) Add "missing" function EVP_MD_flags() (without this the only way to
172 retrieve a digest flags is by accessing the structure directly. Update
173 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
174 or cipher is registered as in the "from" argument. Print out all
175 registered digests in the dgst usage message instead of manually
176 attempting to work them out.
179 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
180 this allows the use of compression and extensions. Change default cipher
181 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
182 by default unless an application cipher string requests it.
185 *) Alter match criteria in PKCS12_parse(). It used to try to use local
186 key ids to find matching certificates and keys but some PKCS#12 files
187 don't follow the (somewhat unwritten) rules and this strategy fails.
188 Now just gather all certificates together and the first private key
189 then look for the first certificate that matches the key.
192 *) Support use of registered digest and cipher names for dgst and cipher
193 commands instead of having to add each one as a special case. So now
200 openssl dgst -sha256 foo
202 and this works for ENGINE based algorithms too.
206 *) Update Gost ENGINE to support parameter files.
207 [Victor B. Wagner <vitus@cryptocom.ru>]
209 *) Support GeneralizedTime in ca utility.
210 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
212 *) Enhance the hash format used for certificate directory links. The new
213 form uses the canonical encoding (meaning equivalent names will work
214 even if they aren't identical) and uses SHA1 instead of MD5. This form
215 is incompatible with the older format and as a result c_rehash should
216 be used to rebuild symbolic links.
219 *) Make PKCS#8 the default write format for private keys, replacing the
220 traditional format. This form is standardised, more secure and doesn't
221 include an implicit MD5 dependency.
224 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
225 committed to OpenSSL should pass this lot as a minimum.
228 *) Add session ticket override functionality for use by EAP-FAST.
229 [Jouni Malinen <j@w1.fi>]
231 *) Modify HMAC functions to return a value. Since these can be implemented
232 in an ENGINE errors can occur.
235 *) Type-checked OBJ_bsearch_ex.
238 *) Type-checked OBJ_bsearch. Also some constification necessitated
239 by type-checking. Still to come: TXT_DB, bsearch(?),
240 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
244 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
245 seconds to a tm structure directly, instead of going through OS
246 specific date routines. This avoids any issues with OS routines such
247 as the year 2038 bug. New *_adj() functions for ASN1 time structures
248 and X509_time_adj_ex() to cover the extended range. The existing
249 X509_time_adj() is still usable and will no longer have any date issues.
252 *) Delta CRL support. New use deltas option which will attempt to locate
253 and search any appropriate delta CRLs available.
255 This work was sponsored by Google.
258 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
259 code and add additional score elements. Validate alternate CRL paths
260 as part of the CRL checking and indicate a new error "CRL path validation
261 error" in this case. Applications wanting additional details can use
262 the verify callback and check the new "parent" field. If this is not
263 NULL CRL path validation is taking place. Existing applications wont
264 see this because it requires extended CRL support which is off by
267 This work was sponsored by Google.
270 *) Support for freshest CRL extension.
272 This work was sponsored by Google.
275 *) Initial indirect CRL support. Currently only supported in the CRLs
276 passed directly and not via lookup. Process certificate issuer
277 CRL entry extension and lookup CRL entries by bother issuer name
278 and serial number. Check and process CRL issuer entry in IDP extension.
280 This work was sponsored by Google.
283 *) Add support for distinct certificate and CRL paths. The CRL issuer
284 certificate is validated separately in this case. Only enabled if
285 an extended CRL support flag is set: this flag will enable additional
286 CRL functionality in future.
288 This work was sponsored by Google.
291 *) Add support for policy mappings extension.
293 This work was sponsored by Google.
296 *) Fixes to pathlength constraint, self issued certificate handling,
297 policy processing to align with RFC3280 and PKITS tests.
299 This work was sponsored by Google.
302 *) Support for name constraints certificate extension. DN, email, DNS
303 and URI types are currently supported.
305 This work was sponsored by Google.
308 *) To cater for systems that provide a pointer-based thread ID rather
309 than numeric, deprecate the current numeric thread ID mechanism and
310 replace it with a structure and associated callback type. This
311 mechanism allows a numeric "hash" to be extracted from a thread ID in
312 either case, and on platforms where pointers are larger than 'long',
313 mixing is done to help ensure the numeric 'hash' is usable even if it
314 can't be guaranteed unique. The default mechanism is to use "&errno"
315 as a pointer-based thread ID to distinguish between threads.
317 Applications that want to provide their own thread IDs should now use
318 CRYPTO_THREADID_set_callback() to register a callback that will call
319 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
321 Note that ERR_remove_state() is now deprecated, because it is tied
322 to the assumption that thread IDs are numeric. ERR_remove_state(0)
323 to free the current thread's error state should be replaced by
324 ERR_remove_thread_state(NULL).
326 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
327 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
328 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
329 application was previously providing a numeric thread callback that
330 was inappropriate for distinguishing threads, then uniqueness might
331 have been obtained with &errno that happened immediately in the
332 intermediate development versions of OpenSSL; this is no longer the
333 case, the numeric thread callback will now override the automatic use
335 [Geoff Thorpe, with help from Bodo Moeller]
337 *) Initial support for different CRL issuing certificates. This covers a
338 simple case where the self issued certificates in the chain exist and
339 the real CRL issuer is higher in the existing chain.
341 This work was sponsored by Google.
344 *) Removed effectively defunct crypto/store from the build.
347 *) Revamp of STACK to provide stronger type-checking. Still to come:
348 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
349 ASN1_STRING, CONF_VALUE.
352 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
353 RAM on SSL connections. This option can save about 34k per idle SSL.
356 *) Revamp of LHASH to provide stronger type-checking. Still to come:
357 STACK, TXT_DB, bsearch, qsort.
360 *) Initial support for Cryptographic Message Syntax (aka CMS) based
361 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
362 support for data, signedData, compressedData, digestedData and
363 encryptedData, envelopedData types included. Scripts to check against
364 RFC4134 examples draft and interop and consistency checks of many
365 content types and variants.
368 *) Add options to enc utility to support use of zlib compression BIO.
371 *) Extend mk1mf to support importing of options and assembly language
372 files from Configure script, currently only included in VC-WIN32.
373 The assembly language rules can now optionally generate the source
374 files from the associated perl scripts.
377 *) Implement remaining functionality needed to support GOST ciphersuites.
378 Interop testing has been performed using CryptoPro implementations.
379 [Victor B. Wagner <vitus@cryptocom.ru>]
381 *) s390x assembler pack.
384 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
388 *) Implement Opaque PRF Input TLS extension as specified in
389 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
390 official specification yet and no extension type assignment by
391 IANA exists, this extension (for now) will have to be explicitly
392 enabled when building OpenSSL by providing the extension number
393 to use. For example, specify an option
395 -DTLSEXT_TYPE_opaque_prf_input=0x9527
397 to the "config" or "Configure" script to enable the extension,
398 assuming extension number 0x9527 (which is a completely arbitrary
399 and unofficial assignment based on the MD5 hash of the Internet
400 Draft). Note that by doing so, you potentially lose
401 interoperability with other TLS implementations since these might
402 be using the same extension number for other purposes.
404 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
405 opaque PRF input value to use in the handshake. This will create
406 an interal copy of the length-'len' string at 'src', and will
407 return non-zero for success.
409 To get more control and flexibility, provide a callback function
412 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
413 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
417 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
420 Callback function 'cb' will be called in handshakes, and is
421 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
422 Argument 'arg' is for application purposes (the value as given to
423 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
424 be provided to the callback function). The callback function
425 has to return non-zero to report success: usually 1 to use opaque
426 PRF input just if possible, or 2 to enforce use of the opaque PRF
427 input. In the latter case, the library will abort the handshake
428 if opaque PRF input is not successfully negotiated.
430 Arguments 'peerinput' and 'len' given to the callback function
431 will always be NULL and 0 in the case of a client. A server will
432 see the client's opaque PRF input through these variables if
433 available (NULL and 0 otherwise). Note that if the server
434 provides an opaque PRF input, the length must be the same as the
435 length of the client's opaque PRF input.
437 Note that the callback function will only be called when creating
438 a new session (session resumption can resume whatever was
439 previously negotiated), and will not be called in SSL 2.0
440 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
441 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
442 for applications that need to enforce opaque PRF input.
446 *) Update ssl code to support digests other than SHA1+MD5 for handshake
449 [Victor B. Wagner <vitus@cryptocom.ru>]
451 *) Add RFC4507 support to OpenSSL. This includes the corrections in
452 RFC4507bis. The encrypted ticket format is an encrypted encoded
453 SSL_SESSION structure, that way new session features are automatically
456 If a client application caches session in an SSL_SESSION structure
457 support is transparent because tickets are now stored in the encoded
460 The SSL_CTX structure automatically generates keys for ticket
461 protection in servers so again support should be possible
462 with no application modification.
464 If a client or server wishes to disable RFC4507 support then the option
465 SSL_OP_NO_TICKET can be set.
467 Add a TLS extension debugging callback to allow the contents of any client
468 or server extensions to be examined.
470 This work was sponsored by Google.
473 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
474 OpenSSL should now compile cleanly on gcc 4.2
475 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
477 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
478 support including streaming MAC support: this is required for GOST
480 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
482 *) Add option -stream to use PKCS#7 streaming in smime utility. New
483 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
484 to output in BER and PEM format.
487 *) Experimental support for use of HMAC via EVP_PKEY interface. This
488 allows HMAC to be handled via the EVP_DigestSign*() interface. The
489 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
490 ENGINE support for HMAC keys which are unextractable. New -mac and
491 -macopt options to dgst utility.
494 *) New option -sigopt to dgst utility. Update dgst to use
495 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
496 alternative signing paramaters such as X9.31 or PSS in the dgst
500 *) Change ssl_cipher_apply_rule(), the internal function that does
501 the work each time a ciphersuite string requests enabling
502 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
503 removing ("!foo+bar") a class of ciphersuites: Now it maintains
504 the order of disabled ciphersuites such that those ciphersuites
505 that most recently went from enabled to disabled not only stay
506 in order with respect to each other, but also have higher priority
507 than other disabled ciphersuites the next time ciphersuites are
510 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
511 the same ciphersuites as with "HIGH" alone, but in a specific
512 order where the PSK ciphersuites come first (since they are the
513 most recently disabled ciphersuites when "HIGH" is parsed).
515 Also, change ssl_create_cipher_list() (using this new
516 funcionality) such that between otherwise identical
517 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
521 *) Change ssl_create_cipher_list() so that it automatically
522 arranges the ciphersuites in reasonable order before starting
523 to process the rule string. Thus, the definition for "DEFAULT"
524 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
525 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
526 This makes it much easier to arrive at a reasonable default order
527 in applications for which anonymous ciphers are OK (meaning
528 that you can't actually use DEFAULT).
529 [Bodo Moeller; suggested by Victor Duchovni]
531 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
532 processing) into multiple integers instead of setting
533 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
534 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
535 (These masks as well as the individual bit definitions are hidden
536 away into the non-exported interface ssl/ssl_locl.h, so this
537 change to the definition of the SSL_CIPHER structure shouldn't
538 affect applications.) This give us more bits for each of these
539 categories, so there is no longer a need to coagulate AES128 and
540 AES256 into a single algorithm bit, and to coagulate Camellia128
541 and Camellia256 into a single algorithm bit, which has led to all
544 Thus, among other things, the kludge introduced in 0.9.7m and
545 0.9.8e for masking out AES256 independently of AES128 or masking
546 out Camellia256 independently of AES256 is not needed here in 0.9.9.
548 With the change, we also introduce new ciphersuite aliases that
549 so far were missing: "AES128", "AES256", "CAMELLIA128", and
553 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
554 Use the leftmost N bytes of the signature input if the input is
555 larger than the prime q (with N being the size in bytes of q).
558 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
559 it yet and it is largely untested.
562 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
565 *) Initial incomplete changes to avoid need for function casts in OpenSSL
566 some compilers (gcc 4.2 and later) reject their use. Safestack is
567 reimplemented. Update ASN1 to avoid use of legacy functions.
570 *) Win32/64 targets are linked with Winsock2.
573 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
574 to external functions. This can be used to increase CRL handling
575 efficiency especially when CRLs are very large by (for example) storing
576 the CRL revoked certificates in a database.
579 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
580 new CRLs added to a directory can be used. New command line option
581 -verify_return_error to s_client and s_server. This causes real errors
582 to be returned by the verify callback instead of carrying on no matter
583 what. This reflects the way a "real world" verify callback would behave.
586 *) GOST engine, supporting several GOST algorithms and public key formats.
587 Kindly donated by Cryptocom.
590 *) Partial support for Issuing Distribution Point CRL extension. CRLs
591 partitioned by DP are handled but no indirect CRL or reason partitioning
592 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
593 selected via a scoring technique which handles IDP and AKID in CRLs.
596 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
597 will ultimately be used for all verify operations: this will remove the
598 X509_STORE dependency on certificate verification and allow alternative
599 lookup methods. X509_STORE based implementations of these two callbacks.
602 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
603 Modify get_crl() to find a valid (unexpired) CRL if possible.
606 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
607 this would be called X509_CRL_cmp() but that name is already used by
608 a function that just compares CRL issuer names. Cache several CRL
609 extensions in X509_CRL structure and cache CRLDP in X509.
612 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
613 this maps equivalent X509_NAME structures into a consistent structure.
614 Name comparison can then be performed rapidly using memcmp().
617 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
621 *) Allow digests to supply their own micalg string for S/MIME type using
622 the ctrl EVP_MD_CTRL_MICALG.
625 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
626 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
627 ctrl. It can then customise the structure before and/or after signing
631 *) New function OBJ_add_sigid() to allow application defined signature OIDs
632 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
633 to free up any added signature OIDs.
636 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
637 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
638 digest and cipher tables. New options added to openssl utility:
639 list-message-digest-algorithms and list-cipher-algorithms.
642 *) Change the array representation of binary polynomials: the list
643 of degrees of non-zero coefficients is now terminated with -1.
644 Previously it was terminated with 0, which was also part of the
645 value; thus, the array representation was not applicable to
646 polynomials where t^0 has coefficient zero. This change makes
647 the array representation useful in a more general context.
650 *) Various modifications and fixes to SSL/TLS cipher string
651 handling. For ECC, the code now distinguishes between fixed ECDH
652 with RSA certificates on the one hand and with ECDSA certificates
653 on the other hand, since these are separate ciphersuites. The
654 unused code for Fortezza ciphersuites has been removed.
656 For consistency with EDH, ephemeral ECDH is now called "EECDH"
657 (not "ECDHE"). For consistency with the code for DH
658 certificates, use of ECDH certificates is now considered ECDH
659 authentication, not RSA or ECDSA authentication (the latter is
660 merely the CA's signing algorithm and not actively used in the
663 The temporary ciphersuite alias "ECCdraft" is no longer
664 available, and ECC ciphersuites are no longer excluded from "ALL"
665 and "DEFAULT". The following aliases now exist for RFC 4492
666 ciphersuites, most of these by analogy with the DH case:
668 kECDHr - ECDH cert, signed with RSA
669 kECDHe - ECDH cert, signed with ECDSA
670 kECDH - ECDH cert (signed with either RSA or ECDSA)
671 kEECDH - ephemeral ECDH
672 ECDH - ECDH cert or ephemeral ECDH
678 AECDH - anonymous ECDH
679 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
683 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
684 Use correct micalg parameters depending on digest(s) in signed message.
687 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
688 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
691 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
692 an engine to register a method. Add ENGINE lookups for methods and
693 functional reference processing.
696 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
697 EVP_{Sign,Verify}* which allow an application to customise the signature
701 *) New -resign option to smime utility. This adds one or more signers
702 to an existing PKCS#7 signedData structure. Also -md option to use an
703 alternative message digest algorithm for signing.
706 *) Tidy up PKCS#7 routines and add new functions to make it easier to
707 create PKCS7 structures containing multiple signers. Update smime
708 application to support multiple signers.
711 *) New -macalg option to pkcs12 utility to allow setting of an alternative
715 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
716 Reorganize PBE internals to lookup from a static table using NIDs,
717 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
718 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
719 PRF which will be automatically used with PBES2.
722 *) Replace the algorithm specific calls to generate keys in "req" with the
726 *) Update PKCS#7 enveloped data routines to use new API. This is now
727 supported by any public key method supporting the encrypt operation. A
728 ctrl is added to allow the public key algorithm to examine or modify
729 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
733 *) Add a ctrl to asn1 method to allow a public key algorithm to express
734 a default digest type to use. In most cases this will be SHA1 but some
735 algorithms (such as GOST) need to specify an alternative digest. The
736 return value indicates how strong the prefernce is 1 means optional and
737 2 is mandatory (that is it is the only supported type). Modify
738 ASN1_item_sign() to accept a NULL digest argument to indicate it should
739 use the default md. Update openssl utilities to use the default digest
740 type for signing if it is not explicitly indicated.
743 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
744 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
745 signing method from the key type. This effectively removes the link
746 between digests and public key types.
749 *) Add an OID cross reference table and utility functions. Its purpose is to
750 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
751 rsaEncryption. This will allow some of the algorithm specific hackery
752 needed to use the correct OID to be removed.
755 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
756 structures for PKCS7_sign(). They are now set up by the relevant public
760 *) Add provisional EC pkey method with support for ECDSA and ECDH.
763 *) Add support for key derivation (agreement) in the API, DH method and
767 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
768 public and private key formats. As a side effect these add additional
769 command line functionality not previously available: DSA signatures can be
770 generated and verified using pkeyutl and DH key support and generation in
775 [Oliver Tappe <zooey@hirschkaefer.de>]
777 *) New make target "install_html_docs" installs HTML renditions of the
779 [Oliver Tappe <zooey@hirschkaefer.de>]
781 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
782 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
783 support key and parameter generation and add initial key generation
784 functionality for RSA.
787 *) Add functions for main EVP_PKEY_method operations. The undocumented
788 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
789 EVP_PKEY_{encrypt,decrypt}_old.
792 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
793 key API, doesn't do much yet.
796 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
797 public key algorithms. New option to openssl utility:
798 "list-public-key-algorithms" to print out info.
801 *) Implement the Supported Elliptic Curves Extension for
802 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
805 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
806 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
809 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
810 utilities such as rsa, dsa, dsaparam etc except they process any key
814 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
815 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
816 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
820 *) Initial support for pluggable public key ASN1.
821 De-spaghettify the public key ASN1 handling. Move public and private
822 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
823 algorithm specific handling to a single module within the relevant
824 algorithm directory. Add functions to allow (near) opaque processing
825 of public and private key structures.
828 *) Implement the Supported Point Formats Extension for
829 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
832 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
833 for the psk identity [hint] and the psk callback functions to the
834 SSL_SESSION, SSL and SSL_CTX structure.
837 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
841 SSL_CTX_use_psk_identity_hint
842 SSL_get_psk_identity_hint
844 SSL_use_psk_identity_hint
846 [Mika Kousa and Pasi Eronen of Nokia Corporation]
848 *) Add RFC 3161 compliant time stamp request creation, response generation
849 and response verification functionality.
850 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
852 *) Add initial support for TLS extensions, specifically for the server_name
853 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
854 have new members for a host name. The SSL data structure has an
855 additional member SSL_CTX *initial_ctx so that new sessions can be
856 stored in that context to allow for session resumption, even after the
857 SSL has been switched to a new SSL_CTX in reaction to a client's
858 server_name extension.
860 New functions (subject to change):
863 SSL_get_servername_type()
866 New CTRL codes and macros (subject to change):
868 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
869 - SSL_CTX_set_tlsext_servername_callback()
870 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
871 - SSL_CTX_set_tlsext_servername_arg()
872 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
874 openssl s_client has a new '-servername ...' option.
876 openssl s_server has new options '-servername_host ...', '-cert2 ...',
877 '-key2 ...', '-servername_fatal' (subject to change). This allows
878 testing the HostName extension for a specific single host name ('-cert'
879 and '-key' remain fallbacks for handshakes without HostName
880 negotiation). If the unrecogninzed_name alert has to be sent, this by
881 default is a warning; it becomes fatal with the '-servername_fatal'
884 [Peter Sylvester, Remy Allais, Christophe Renou]
886 *) Whirlpool hash implementation is added.
889 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
890 bn(64,32). Because of instruction set limitations it doesn't have
891 any negative impact on performance. This was done mostly in order
892 to make it possible to share assembler modules, such as bn_mul_mont
893 implementations, between 32- and 64-bit builds without hassle.
896 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
897 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
901 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
902 dedicated Montgomery multiplication procedure, is introduced.
903 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
904 "64-bit" performance on certain 32-bit targets.
907 *) New option SSL_OP_NO_COMP to disable use of compression selectively
908 in SSL structures. New SSL ctrl to set maximum send fragment size.
909 Save memory by seeting the I/O buffer sizes dynamically instead of
910 using the maximum available value.
913 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
914 in addition to the text details.
917 *) Very, very preliminary EXPERIMENTAL support for printing of general
918 ASN1 structures. This currently produces rather ugly output and doesn't
919 handle several customised structures at all.
922 *) Integrated support for PVK file format and some related formats such
923 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
924 these in the 'rsa' and 'dsa' utilities.
927 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
930 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
931 place for the (very old) "NETSCAPE" format certificates which are now
932 handled using new ASN1 code equivalents.
935 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
936 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
937 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
940 *) Modify CRL distribution points extension code to print out previously
941 unsupported fields. Enhance extension setting code to allow setting of
945 *) Add print and set support for Issuing Distribution Point CRL extension.
948 *) Change 'Configure' script to enable Camellia by default.
951 Changes between 0.9.8n and 0.9.8o [xx XXX xxxx]
953 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
954 common in certificates and some applications which only call
955 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
958 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
960 *) When rejecting SSL/TLS records due to an incorrect version number, never
961 update s->server with a new major version number. As of
962 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
963 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
964 the previous behavior could result in a read attempt at NULL when
965 receiving specific incorrect SSL/TLS records once record payload
966 protection is active. (CVE-2010-####)
967 [Bodo Moeller, Adam Langley]
969 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
970 could be crashed if the relevant tables were not present (e.g. chrooted).
971 [Tomas Hoger <thoger@redhat.com>]
973 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
975 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
976 [Martin Olsson, Neel Mehta]
978 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
979 accommodate for stack sorting, always a write lock!).
982 *) On some versions of WIN32 Heap32Next is very slow. This can cause
983 excessive delays in the RAND_poll(): over a minute. As a workaround
984 include a time check in the inner Heap32Next loop too.
987 *) The code that handled flushing of data in SSL/TLS originally used the
988 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
989 the problem outlined in PR#1949. The fix suggested there however can
990 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
991 of Apache). So instead simplify the code to flush unconditionally.
992 This should be fine since flushing with no data to flush is a no op.
995 *) Handle TLS versions 2.0 and later properly and correctly use the
996 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
997 off ancient servers have a habit of sticking around for a while...
1000 *) Modify compression code so it frees up structures without using the
1001 ex_data callbacks. This works around a problem where some applications
1002 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1003 restarting) then use compression (e.g. SSL with compression) later.
1004 This results in significant per-connection memory leaks and
1005 has caused some security issues including CVE-2008-1678 and
1009 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1010 change when encrypting or decrypting.
1013 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1014 connect and renegotiate with servers which do not support RI.
1015 Until RI is more widely deployed this option is enabled by default.
1018 *) Add "missing" ssl ctrls to clear options and mode.
1021 *) If client attempts to renegotiate and doesn't support RI respond with
1022 a no_renegotiation alert as required by RFC5746. Some renegotiating
1023 TLS clients will continue a connection gracefully when they receive
1024 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1025 waiting for a server hello which it will never receive. Now we treat a
1026 received no_renegotiation alert as a fatal error. This is because
1027 applications requesting a renegotiation might well expect it to succeed
1028 and would have no code in place to handle the server denying it so the
1029 only safe thing to do is to terminate the connection.
1032 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1033 peer supports secure renegotiation and 0 otherwise. Print out peer
1034 renegotiation support in s_client/s_server.
1037 *) Replace the highly broken and deprecated SPKAC certification method with
1038 the updated NID creation version. This should correctly handle UTF8.
1041 *) Implement RFC5746. Re-enable renegotiation but require the extension
1042 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1043 turns out to be a bad idea. It has been replaced by
1044 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1045 SSL_CTX_set_options(). This is really not recommended unless you
1046 know what you are doing.
1047 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1049 *) Fixes to stateless session resumption handling. Use initial_ctx when
1050 issuing and attempting to decrypt tickets in case it has changed during
1051 servername handling. Use a non-zero length session ID when attempting
1052 stateless session resumption: this makes it possible to determine if
1053 a resumption has occurred immediately after receiving server hello
1054 (several places in OpenSSL subtly assume this) instead of later in
1058 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1059 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1060 fixes for a few places where the return code is not checked
1062 [Julia Lawall <julia@diku.dk>]
1064 *) Add --strict-warnings option to Configure script to include devteam
1065 warnings in other configurations.
1068 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1069 makes it possible to install openssl libraries in locations which
1070 have names other than "lib", for example "/usr/lib64" which some
1072 [Steve Henson, based on patch from Jeremy Utley]
1074 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1075 X690 8.9.12 and can produce some misleading textual output of OIDs.
1076 [Steve Henson, reported by Dan Kaminsky]
1078 *) Delete MD2 from algorithm tables. This follows the recommendation in
1079 several standards that it is not used in new applications due to
1080 several cryptographic weaknesses. For binary compatibility reasons
1081 the MD2 API is still compiled in by default.
1084 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1088 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1089 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1091 [Guenter <lists@gknw.net>]
1093 *) Fix the server certificate chain building code to use X509_verify_cert(),
1094 it used to have an ad-hoc builder which was unable to cope with anything
1095 other than a simple chain.
1096 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1098 *) Don't check self signed certificate signatures in X509_verify_cert()
1099 by default (a flag can override this): it just wastes time without
1100 adding any security. As a useful side effect self signed root CAs
1101 with non-FIPS digests are now usable in FIPS mode.
1104 *) In dtls1_process_out_of_seq_message() the check if the current message
1105 is already buffered was missing. For every new message was memory
1106 allocated, allowing an attacker to perform an denial of service attack
1107 with sending out of seq handshake messages until there is no memory
1108 left. Additionally every future messege was buffered, even if the
1109 sequence number made no sense and would be part of another handshake.
1110 So only messages with sequence numbers less than 10 in advance will be
1111 buffered. (CVE-2009-1378)
1112 [Robin Seggelmann, discovered by Daniel Mentz]
1114 *) Records are buffered if they arrive with a future epoch to be
1115 processed after finishing the corresponding handshake. There is
1116 currently no limitation to this buffer allowing an attacker to perform
1117 a DOS attack with sending records with future epochs until there is no
1118 memory left. This patch adds the pqueue_size() function to detemine
1119 the size of a buffer and limits the record buffer to 100 entries.
1121 [Robin Seggelmann, discovered by Daniel Mentz]
1123 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1124 parent structure is freed. (CVE-2009-1379)
1127 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1128 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1131 [Ilya O. <vrghost@gmail.com>]
1133 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1135 *) Disable renegotiation completely - this fixes a severe security
1136 problem (CVE-2009-3555) at the cost of breaking all
1137 renegotiation. Renegotiation can be re-enabled by setting
1138 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1139 run-time. This is really not recommended unless you know what
1143 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1145 *) Don't set val to NULL when freeing up structures, it is freed up by
1146 underlying code. If sizeof(void *) > sizeof(long) this can result in
1147 zeroing past the valid field. (CVE-2009-0789)
1148 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1150 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1151 checked correctly. This would allow some invalid signed attributes to
1152 appear to verify correctly. (CVE-2009-0591)
1153 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1155 *) Reject UniversalString and BMPString types with invalid lengths. This
1156 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1157 a legal length. (CVE-2009-0590)
1160 *) Set S/MIME signing as the default purpose rather than setting it
1161 unconditionally. This allows applications to override it at the store
1165 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1166 to handle some structures.
1169 *) Improve efficiency of mem_gets: don't search whole buffer each time
1171 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1173 *) New -hex option for openssl rand.
1176 *) Print out UTF8String and NumericString when parsing ASN1.
1179 *) Support NumericString type for name components.
1182 *) Allow CC in the environment to override the automatically chosen
1183 compiler. Note that nothing is done to ensure flags work with the
1187 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1189 *) Properly check EVP_VerifyFinal() and similar return values
1191 [Ben Laurie, Bodo Moeller, Google Security Team]
1193 *) Enable TLS extensions by default.
1196 *) Allow the CHIL engine to be loaded, whether the application is
1197 multithreaded or not. (This does not release the developer from the
1198 obligation to set up the dynamic locking callbacks.)
1199 [Sander Temme <sander@temme.net>]
1201 *) Use correct exit code if there is an error in dgst command.
1202 [Steve Henson; problem pointed out by Roland Dirlewanger]
1204 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1205 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1208 *) Add experimental JPAKE support, including demo authentication in
1209 s_client and s_server.
1212 *) Set the comparison function in v3_addr_canonize().
1213 [Rob Austein <sra@hactrn.net>]
1215 *) Add support for XMPP STARTTLS in s_client.
1216 [Philip Paeps <philip@freebsd.org>]
1218 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1219 to ensure that even with this option, only ciphersuites in the
1220 server's preference list will be accepted. (Note that the option
1221 applies only when resuming a session, so the earlier behavior was
1222 just about the algorithm choice for symmetric cryptography.)
1225 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1227 *) Fix NULL pointer dereference if a DTLS server received
1228 ChangeCipherSpec as first record (CVE-2009-1386).
1231 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1232 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1235 *) The fix in 0.9.8c that supposedly got rid of unsafe
1236 double-checked locking was incomplete for RSA blinding,
1237 addressing just one layer of what turns out to have been
1238 doubly unsafe triple-checked locking.
1240 So now fix this for real by retiring the MONT_HELPER macro
1241 in crypto/rsa/rsa_eay.c.
1243 [Bodo Moeller; problem pointed out by Marius Schilder]
1245 *) Various precautionary measures:
1247 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1249 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1250 (NB: This would require knowledge of the secret session ticket key
1251 to exploit, in which case you'd be SOL either way.)
1253 - Change bn_nist.c so that it will properly handle input BIGNUMs
1254 outside the expected range.
1256 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1259 [Neel Mehta, Bodo Moeller]
1261 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1262 the load fails. Useful for distros.
1263 [Ben Laurie and the FreeBSD team]
1265 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1268 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1271 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1273 This work was sponsored by Logica.
1276 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1277 keystores. Support for SSL/TLS client authentication too.
1278 Not compiled unless enable-capieng specified to Configure.
1280 This work was sponsored by Logica.
1283 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1284 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1285 attribute creation routines such as certifcate requests and PKCS#12
1289 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1291 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1292 handshake which could lead to a cilent crash as found using the
1293 Codenomicon TLS test suite (CVE-2008-1672)
1294 [Steve Henson, Mark Cox]
1296 *) Fix double free in TLS server name extensions which could lead to
1297 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1300 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1302 Clear the error queue to ensure that error entries left from
1303 older function calls do not interfere with the correct operation.
1304 [Lutz Jaenicke, Erik de Castro Lopo]
1306 *) Remove root CA certificates of commercial CAs:
1308 The OpenSSL project does not recommend any specific CA and does not
1309 have any policy with respect to including or excluding any CA.
1310 Therefore it does not make any sense to ship an arbitrary selection
1311 of root CA certificates with the OpenSSL software.
1314 *) RSA OAEP patches to fix two separate invalid memory reads.
1315 The first one involves inputs when 'lzero' is greater than
1316 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1317 before the beginning of from). The second one involves inputs where
1318 the 'db' section contains nothing but zeroes (there is a one-byte
1319 invalid read after the end of 'db').
1320 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1322 *) Partial backport from 0.9.9-dev:
1324 Introduce bn_mul_mont (dedicated Montgomery multiplication
1325 procedure) as a candidate for BIGNUM assembler implementation.
1326 While 0.9.9-dev uses assembler for various architectures, only
1327 x86_64 is available by default here in the 0.9.8 branch, and
1328 32-bit x86 is available through a compile-time setting.
1330 To try the 32-bit x86 assembler implementation, use Configure
1331 option "enable-montasm" (which exists only for this backport).
1333 As "enable-montasm" for 32-bit x86 disclaims code stability
1334 anyway, in this constellation we activate additional code
1335 backported from 0.9.9-dev for further performance improvements,
1336 namely BN_from_montgomery_word. (To enable this otherwise,
1337 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1339 [Andy Polyakov (backport partially by Bodo Moeller)]
1341 *) Add TLS session ticket callback. This allows an application to set
1342 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1343 values. This is useful for key rollover for example where several key
1344 sets may exist with different names.
1347 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1348 This was broken until now in 0.9.8 releases, such that the only way
1349 a registered ENGINE could be used (assuming it initialises
1350 successfully on the host) was to explicitly set it as the default
1351 for the relevant algorithms. This is in contradiction with 0.9.7
1352 behaviour and the documentation. With this fix, when an ENGINE is
1353 registered into a given algorithm's table of implementations, the
1354 'uptodate' flag is reset so that auto-discovery will be used next
1355 time a new context for that algorithm attempts to select an
1357 [Ian Lister (tweaked by Geoff Thorpe)]
1359 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1360 implemention in the following ways:
1362 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1365 Lack of BER streaming support means one pass streaming processing is
1366 only supported if data is detached: setting the streaming flag is
1367 ignored for embedded content.
1369 CMS support is disabled by default and must be explicitly enabled
1370 with the enable-cms configuration option.
1373 *) Update the GMP engine glue to do direct copies between BIGNUM and
1374 mpz_t when openssl and GMP use the same limb size. Otherwise the
1375 existing "conversion via a text string export" trick is still used.
1376 [Paul Sheer <paulsheer@gmail.com>]
1378 *) Zlib compression BIO. This is a filter BIO which compressed and
1379 uncompresses any data passed through it.
1382 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1383 RFC3394 compatible AES key wrapping.
1386 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1387 sets string data without copying. X509_ALGOR_set0() and
1388 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1389 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1390 from an X509_ATTRIBUTE structure optionally checking it occurs only
1391 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1395 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1396 to get the expected BN_FLG_CONSTTIME behavior.
1397 [Bodo Moeller (Google)]
1401 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1402 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1403 - added some more tests to do_tests.pl
1404 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1405 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1406 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1407 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1408 - various changes to netware.pl to enable gcc-cross builds on Win32
1410 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1411 - various changes to fix missing prototype warnings
1412 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1413 - added AES, WHIRLPOOL and CPUID assembler code to build files
1414 - added missing AES assembler make rules to mk1mf.pl
1415 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1416 [Guenter Knauf <eflash@gmx.net>]
1418 *) Implement certificate status request TLS extension defined in RFC3546.
1419 A client can set the appropriate parameters and receive the encoded
1420 OCSP response via a callback. A server can query the supplied parameters
1421 and set the encoded OCSP response in the callback. Add simplified examples
1422 to s_client and s_server.
1425 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1427 *) Fix various bugs:
1428 + Binary incompatibility of ssl_ctx_st structure
1429 + DTLS interoperation with non-compliant servers
1430 + Don't call get_session_cb() without proposed session
1431 + Fix ia64 assembler code
1432 [Andy Polyakov, Steve Henson]
1434 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1436 *) DTLS Handshake overhaul. There were longstanding issues with
1437 OpenSSL DTLS implementation, which were making it impossible for
1438 RFC 4347 compliant client to communicate with OpenSSL server.
1439 Unfortunately just fixing these incompatibilities would "cut off"
1440 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1441 server keeps tolerating non RFC compliant syntax. The opposite is
1442 not true, 0.9.8f client can not communicate with earlier server.
1443 This update even addresses CVE-2007-4995.
1446 *) Changes to avoid need for function casts in OpenSSL: some compilers
1447 (gcc 4.2 and later) reject their use.
1448 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1451 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1452 RFC4507bis. The encrypted ticket format is an encrypted encoded
1453 SSL_SESSION structure, that way new session features are automatically
1456 If a client application caches session in an SSL_SESSION structure
1457 support is transparent because tickets are now stored in the encoded
1460 The SSL_CTX structure automatically generates keys for ticket
1461 protection in servers so again support should be possible
1462 with no application modification.
1464 If a client or server wishes to disable RFC4507 support then the option
1465 SSL_OP_NO_TICKET can be set.
1467 Add a TLS extension debugging callback to allow the contents of any client
1468 or server extensions to be examined.
1470 This work was sponsored by Google.
1473 *) Add initial support for TLS extensions, specifically for the server_name
1474 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1475 have new members for a host name. The SSL data structure has an
1476 additional member SSL_CTX *initial_ctx so that new sessions can be
1477 stored in that context to allow for session resumption, even after the
1478 SSL has been switched to a new SSL_CTX in reaction to a client's
1479 server_name extension.
1481 New functions (subject to change):
1483 SSL_get_servername()
1484 SSL_get_servername_type()
1487 New CTRL codes and macros (subject to change):
1489 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1490 - SSL_CTX_set_tlsext_servername_callback()
1491 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1492 - SSL_CTX_set_tlsext_servername_arg()
1493 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1495 openssl s_client has a new '-servername ...' option.
1497 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1498 '-key2 ...', '-servername_fatal' (subject to change). This allows
1499 testing the HostName extension for a specific single host name ('-cert'
1500 and '-key' remain fallbacks for handshakes without HostName
1501 negotiation). If the unrecogninzed_name alert has to be sent, this by
1502 default is a warning; it becomes fatal with the '-servername_fatal'
1505 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1507 *) Add AES and SSE2 assembly language support to VC++ build.
1510 *) Mitigate attack on final subtraction in Montgomery reduction.
1513 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1514 (which previously caused an internal error).
1517 *) Squeeze another 10% out of IGE mode when in != out.
1520 *) AES IGE mode speedup.
1521 [Dean Gaudet (Google)]
1523 *) Add the Korean symmetric 128-bit cipher SEED (see
1524 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1525 add SEED ciphersuites from RFC 4162:
1527 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1528 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1529 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1530 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1532 To minimize changes between patchlevels in the OpenSSL 0.9.8
1533 series, SEED remains excluded from compilation unless OpenSSL
1534 is configured with 'enable-seed'.
1535 [KISA, Bodo Moeller]
1537 *) Mitigate branch prediction attacks, which can be practical if a
1538 single processor is shared, allowing a spy process to extract
1539 information. For detailed background information, see
1540 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1541 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1542 and Necessary Software Countermeasures"). The core of the change
1543 are new versions BN_div_no_branch() and
1544 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1545 respectively, which are slower, but avoid the security-relevant
1546 conditional branches. These are automatically called by BN_div()
1547 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1548 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1549 remove a conditional branch.
1551 BN_FLG_CONSTTIME is the new name for the previous
1552 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1553 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1554 in the exponent causes BN_mod_exp_mont() to use the alternative
1555 implementation in BN_mod_exp_mont_consttime().) The old name
1556 remains as a deprecated alias.
1558 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1559 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1560 constant-time implementations for more than just exponentiation.
1561 Here too the old name is kept as a deprecated alias.
1563 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1564 the BN_BLINDING structure gets an independent copy of the
1565 modulus. This means that the previous "BIGNUM *m" argument to
1566 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1567 essentially becomes "const BIGNUM *m", although we can't actually
1568 change this in the header file before 0.9.9. It allows
1569 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1570 enable BN_FLG_CONSTTIME.
1572 [Matthew D Wood (Intel Corp)]
1574 *) In the SSL/TLS server implementation, be strict about session ID
1575 context matching (which matters if an application uses a single
1576 external cache for different purposes). Previously,
1577 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1578 set. This did ensure strict client verification, but meant that,
1579 with applications using a single external cache for quite
1580 different requirements, clients could circumvent ciphersuite
1581 restrictions for a given session ID context by starting a session
1582 in a different context.
1585 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1586 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1587 authentication-only ciphersuites.
1590 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1591 not complete and could lead to a possible single byte overflow
1592 (CVE-2007-5135) [Ben Laurie]
1594 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1596 *) Since AES128 and AES256 (and similarly Camellia128 and
1597 Camellia256) share a single mask bit in the logic of
1598 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1599 kludge to work properly if AES128 is available and AES256 isn't
1600 (or if Camellia128 is available and Camellia256 isn't).
1603 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1604 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1605 When a point or a seed is encoded in a BIT STRING, we need to
1606 prevent the removal of trailing zero bits to get the proper DER
1607 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1608 of a NamedBitList, for which trailing 0 bits need to be removed.)
1611 *) Have SSL/TLS server implementation tolerate "mismatched" record
1612 protocol version while receiving ClientHello even if the
1613 ClientHello is fragmented. (The server can't insist on the
1614 particular protocol version it has chosen before the ServerHello
1615 message has informed the client about his choice.)
1618 *) Add RFC 3779 support.
1619 [Rob Austein for ARIN, Ben Laurie]
1621 *) Load error codes if they are not already present instead of using a
1622 static variable. This allows them to be cleanly unloaded and reloaded.
1623 Improve header file function name parsing.
1626 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1627 or CAPABILITY handshake as required by RFCs.
1630 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1632 *) Introduce limits to prevent malicious keys being able to
1633 cause a denial of service. (CVE-2006-2940)
1634 [Steve Henson, Bodo Moeller]
1636 *) Fix ASN.1 parsing of certain invalid structures that can result
1637 in a denial of service. (CVE-2006-2937) [Steve Henson]
1639 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1640 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1642 *) Fix SSL client code which could crash if connecting to a
1643 malicious SSLv2 server. (CVE-2006-4343)
1644 [Tavis Ormandy and Will Drewry, Google Security Team]
1646 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1647 match only those. Before that, "AES256-SHA" would be interpreted
1648 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1649 the same strength classification in 0.9.7h) as we currently only
1650 have a single AES bit in the ciphersuite description bitmap.
1651 That change, however, also applied to ciphersuite strings such as
1652 "RC4-MD5" that intentionally matched multiple ciphersuites --
1653 namely, SSL 2.0 ciphersuites in addition to the more common ones
1654 from SSL 3.0/TLS 1.0.
1656 So we change the selection algorithm again: Naming an explicit
1657 ciphersuite selects this one ciphersuite, and any other similar
1658 ciphersuite (same bitmap) from *other* protocol versions.
1659 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1660 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1662 Since SSL 2.0 does not have any ciphersuites for which the
1663 128/256 bit distinction would be relevant, this works for now.
1664 The proper fix will be to use different bits for AES128 and
1665 AES256, which would have avoided the problems from the beginning;
1666 however, bits are scarce, so we can only do this in a new release
1667 (not just a patchlevel) when we can change the SSL_CIPHER
1668 definition to split the single 'unsigned long mask' bitmap into
1669 multiple values to extend the available space.
1673 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1675 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1676 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1678 *) Add AES IGE and biIGE modes.
1681 *) Change the Unix randomness entropy gathering to use poll() when
1682 possible instead of select(), since the latter has some
1683 undesirable limitations.
1684 [Darryl Miles via Richard Levitte and Bodo Moeller]
1686 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1687 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1688 cannot be implicitly activated as part of, e.g., the "AES" alias.
1689 However, please upgrade to OpenSSL 0.9.9[-dev] for
1690 non-experimental use of the ECC ciphersuites to get TLS extension
1691 support, which is required for curve and point format negotiation
1692 to avoid potential handshake problems.
1695 *) Disable rogue ciphersuites:
1697 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1698 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1699 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1701 The latter two were purportedly from
1702 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1705 Also deactivate the remaining ciphersuites from
1706 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1707 unofficial, and the ID has long expired.
1710 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1711 dual-core machines) and other potential thread-safety issues.
1714 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1715 versions), which is now available for royalty-free use
1716 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1717 Also, add Camellia TLS ciphersuites from RFC 4132.
1719 To minimize changes between patchlevels in the OpenSSL 0.9.8
1720 series, Camellia remains excluded from compilation unless OpenSSL
1721 is configured with 'enable-camellia'.
1724 *) Disable the padding bug check when compression is in use. The padding
1725 bug check assumes the first packet is of even length, this is not
1726 necessarily true if compresssion is enabled and can result in false
1727 positives causing handshake failure. The actual bug test is ancient
1728 code so it is hoped that implementations will either have fixed it by
1729 now or any which still have the bug do not support compression.
1732 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1734 *) When applying a cipher rule check to see if string match is an explicit
1735 cipher suite and only match that one cipher suite if it is.
1738 *) Link in manifests for VC++ if needed.
1739 [Austin Ziegler <halostatue@gmail.com>]
1741 *) Update support for ECC-based TLS ciphersuites according to
1742 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1743 TLS extensions, which are supported starting with the 0.9.9
1744 branch, not in the OpenSSL 0.9.8 branch).
1747 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1748 opaque EVP_CIPHER_CTX handling.
1751 *) Fixes and enhancements to zlib compression code. We now only use
1752 "zlib1.dll" and use the default __cdecl calling convention on Win32
1753 to conform with the standards mentioned here:
1754 http://www.zlib.net/DLL_FAQ.txt
1755 Static zlib linking now works on Windows and the new --with-zlib-include
1756 --with-zlib-lib options to Configure can be used to supply the location
1757 of the headers and library. Gracefully handle case where zlib library
1761 *) Several fixes and enhancements to the OID generation code. The old code
1762 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1763 handle numbers larger than ULONG_MAX, truncated printing and had a
1764 non standard OBJ_obj2txt() behaviour.
1767 *) Add support for building of engines under engine/ as shared libraries
1768 under VC++ build system.
1771 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1772 Hopefully, we will not see any false combination of paths any more.
1775 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1777 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1778 (part of SSL_OP_ALL). This option used to disable the
1779 countermeasure against man-in-the-middle protocol-version
1780 rollback in the SSL 2.0 server implementation, which is a bad
1781 idea. (CVE-2005-2969)
1783 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1784 for Information Security, National Institute of Advanced Industrial
1785 Science and Technology [AIST], Japan)]
1787 *) Add two function to clear and return the verify parameter flags.
1790 *) Keep cipherlists sorted in the source instead of sorting them at
1791 runtime, thus removing the need for a lock.
1794 *) Avoid some small subgroup attacks in Diffie-Hellman.
1795 [Nick Mathewson and Ben Laurie]
1797 *) Add functions for well-known primes.
1800 *) Extended Windows CE support.
1801 [Satoshi Nakamura and Andy Polyakov]
1803 *) Initialize SSL_METHOD structures at compile time instead of during
1804 runtime, thus removing the need for a lock.
1807 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1808 attempting to decrypt each encrypted key in turn. Add support to
1812 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1814 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1817 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1820 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1821 key into the same file any more.
1824 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1827 *) Add -utf8 command line and config file option to 'ca'.
1828 [Stefan <stf@udoma.org]
1830 *) Removed the macro des_crypt(), as it seems to conflict with some
1831 libraries. Use DES_crypt().
1834 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1835 involves renaming the source and generated shared-libs for
1836 both. The engines will accept the corrected or legacy ids
1837 ('ncipher' and '4758_cca' respectively) when binding. NB,
1838 this only applies when building 'shared'.
1839 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1841 *) Add attribute functions to EVP_PKEY structure. Modify
1842 PKCS12_create() to recognize a CSP name attribute and
1843 use it. Make -CSP option work again in pkcs12 utility.
1846 *) Add new functionality to the bn blinding code:
1847 - automatic re-creation of the BN_BLINDING parameters after
1848 a fixed number of uses (currently 32)
1849 - add new function for parameter creation
1850 - introduce flags to control the update behaviour of the
1851 BN_BLINDING parameters
1852 - hide BN_BLINDING structure
1853 Add a second BN_BLINDING slot to the RSA structure to improve
1854 performance when a single RSA object is shared among several
1858 *) Add support for DTLS.
1859 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1861 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1862 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1865 *) Remove buggy and incompletet DH cert support from
1866 ssl/ssl_rsa.c and ssl/s3_both.c
1869 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1870 the apps/openssl applications.
1873 *) Compile clean with "-Wall -Wmissing-prototypes
1874 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1875 DEBUG_SAFESTACK must also be set.
1878 *) Change ./Configure so that certain algorithms can be disabled by default.
1879 The new counterpiece to "no-xxx" is "enable-xxx".
1881 The patented RC5 and MDC2 algorithms will now be disabled unless
1882 "enable-rc5" and "enable-mdc2", respectively, are specified.
1884 (IDEA remains enabled despite being patented. This is because IDEA
1885 is frequently required for interoperability, and there is no license
1886 fee for non-commercial use. As before, "no-idea" can be used to
1887 avoid this algorithm.)
1891 *) Add processing of proxy certificates (see RFC 3820). This work was
1892 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1893 EGEE (Enabling Grids for E-science in Europe).
1896 *) RC4 performance overhaul on modern architectures/implementations, such
1897 as Intel P4, IA-64 and AMD64.
1900 *) New utility extract-section.pl. This can be used specify an alternative
1901 section number in a pod file instead of having to treat each file as
1902 a separate case in Makefile. This can be done by adding two lines to the
1905 =for comment openssl_section:XXX
1907 The blank line is mandatory.
1911 *) New arguments -certform, -keyform and -pass for s_client and s_server
1912 to allow alternative format key and certificate files and passphrase
1916 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1917 update associated structures and add various utility functions.
1919 Add new policy related verify parameters, include policy checking in
1920 standard verify code. Enhance 'smime' application with extra parameters
1921 to support policy checking and print out.
1924 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1925 Nehemiah processors. These extensions support AES encryption in hardware
1926 as well as RNG (though RNG support is currently disabled).
1927 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1929 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1932 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1933 [Andy Polyakov and a number of other people]
1935 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1936 implementation contributed by IBM.
1937 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1939 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1940 exponent rather than 'unsigned long'. There is a corresponding change to
1941 the new 'rsa_keygen' element of the RSA_METHOD structure.
1942 [Jelte Jansen, Geoff Thorpe]
1944 *) Functionality for creating the initial serial number file is now
1945 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1947 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1948 number file to 1, which is bound to cause problems. To avoid
1949 the problems while respecting compatibility between different 0.9.7
1950 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1951 CA.pl for serial number initialization. With the new release 0.9.8,
1952 we can fix the problem directly in the 'ca' utility.)
1955 *) Reduced header interdepencies by declaring more opaque objects in
1956 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1957 give fewer recursive includes, which could break lazy source code - so
1958 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1959 developers should define this symbol when building and using openssl to
1960 ensure they track the recommended behaviour, interfaces, [etc], but
1961 backwards-compatible behaviour prevails when this isn't defined.
1964 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1967 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1968 This will generate a random key of the appropriate length based on the
1969 cipher context. The EVP_CIPHER can provide its own random key generation
1970 routine to support keys of a specific form. This is used in the des and
1971 3des routines to generate a key of the correct parity. Update S/MIME
1972 code to use new functions and hence generate correct parity DES keys.
1973 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1974 valid (weak or incorrect parity).
1977 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1978 as looking them up. This is useful when the verified structure may contain
1979 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1980 present unless the new PKCS7_NO_CRL flag is asserted.
1983 *) Extend ASN1 oid configuration module. It now additionally accepts the
1986 shortName = some long name, 1.2.3.4
1989 *) Reimplemented the BN_CTX implementation. There is now no more static
1990 limitation on the number of variables it can handle nor the depth of the
1991 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1992 information can now expand as required, and rather than having a single
1993 static array of bignums, BN_CTX now uses a linked-list of such arrays
1994 allowing it to expand on demand whilst maintaining the usefulness of
1995 BN_CTX's "bundling".
1998 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1999 to allow all RSA operations to function using a single BN_CTX.
2002 *) Preliminary support for certificate policy evaluation and checking. This
2003 is initially intended to pass the tests outlined in "Conformance Testing
2004 of Relying Party Client Certificate Path Processing Logic" v1.07.
2007 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2008 remained unused and not that useful. A variety of other little bignum
2009 tweaks and fixes have also been made continuing on from the audit (see
2013 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2014 associated ASN1, EVP and SSL functions and old ASN1 macros.
2017 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2018 and this should never fail. So the return value from the use of
2019 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2020 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2023 *) BN_CTX_get() should return zero-valued bignums, providing the same
2024 initialised value as BN_new().
2025 [Geoff Thorpe, suggested by Ulf Möller]
2027 *) Support for inhibitAnyPolicy certificate extension.
2030 *) An audit of the BIGNUM code is underway, for which debugging code is
2031 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2032 is considered valid when processing BIGNUMs, and causes execution to
2033 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2034 further steps are taken to deliberately pollute unused data in BIGNUM
2035 structures to try and expose faulty code further on. For now, openssl will
2036 (in its default mode of operation) continue to tolerate the inconsistent
2037 forms that it has tolerated in the past, but authors and packagers should
2038 consider trying openssl and their own applications when compiled with
2039 these debugging symbols defined. It will help highlight potential bugs in
2040 their own code, and will improve the test coverage for OpenSSL itself. At
2041 some point, these tighter rules will become openssl's default to improve
2042 maintainability, though the assert()s and other overheads will remain only
2043 in debugging configurations. See bn.h for more details.
2044 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2046 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2047 that can only be obtained through BN_CTX_new() (which implicitly
2048 initialises it). The presence of this function only made it possible
2049 to overwrite an existing structure (and cause memory leaks).
2052 *) Because of the callback-based approach for implementing LHASH as a
2053 template type, lh_insert() adds opaque objects to hash-tables and
2054 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2055 to clean up those corresponding objects before destroying the hash table
2056 (and losing the object pointers). So some over-zealous constifications in
2057 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2058 objects as "const" and the lh_doall[_arg] callback wrappers are not
2059 prototyped to have "const" restrictions on the object pointers they are
2060 given (and so aren't required to cast them away any more).
2063 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2064 (speed) prefers to use its own implementation. The two implementations
2065 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2066 its object type properly exposed (MS_TM) instead of casting to/from "char
2067 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2068 aren't necessarily the greatest nomenclatures - but this is what was used
2069 internally to the implementation so I've used that for now.
2072 *) Ensure that deprecated functions do not get compiled when
2073 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2074 the self-tests were still using deprecated key-generation functions so
2075 these have been updated also.
2078 *) Reorganise PKCS#7 code to separate the digest location functionality
2079 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2080 New function PKCS7_set_digest() to set the digest type for PKCS#7
2081 digestedData type. Add additional code to correctly generate the
2082 digestedData type and add support for this type in PKCS7 initialization
2086 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2087 structure of type "other".
2090 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2091 sure the loop does correctly stop and breaking ("division by zero")
2092 modulus operations are not performed. The (pre-generated) prime
2093 table crypto/bn/bn_prime.h was already correct, but it could not be
2094 re-generated on some platforms because of the "division by zero"
2095 situation in the script.
2096 [Ralf S. Engelschall]
2098 *) Update support for ECC-based TLS ciphersuites according to
2099 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2100 SHA-1 now is only used for "small" curves (where the
2101 representation of a field element takes up to 24 bytes); for
2102 larger curves, the field element resulting from ECDH is directly
2103 used as premaster secret.
2104 [Douglas Stebila (Sun Microsystems Laboratories)]
2106 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2107 curve secp160r1 to the tests.
2108 [Douglas Stebila (Sun Microsystems Laboratories)]
2110 *) Add the possibility to load symbols globally with DSO.
2111 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2113 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2114 control of the error stack.
2117 *) Add support for STORE in ENGINE.
2120 *) Add the STORE type. The intention is to provide a common interface
2121 to certificate and key stores, be they simple file-based stores, or
2122 HSM-type store, or LDAP stores, or...
2123 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2126 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2127 pass a list of arguments to any function as well as provide a way
2128 for a function to pass data back to the caller.
2131 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2132 works like BUF_strdup() but can be used to duplicate a portion of
2133 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2137 *) Add the function sk_find_ex() which works like sk_find(), but will
2138 return an index to an element even if an exact match couldn't be
2139 found. The index is guaranteed to point at the element where the
2140 searched-for key would be inserted to preserve sorting order.
2143 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2144 takes an extra flags argument for optional functionality. Currently,
2145 the following flags are defined:
2147 OBJ_BSEARCH_VALUE_ON_NOMATCH
2148 This one gets OBJ_bsearch_ex() to return a pointer to the first
2149 element where the comparing function returns a negative or zero
2152 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2153 This one gets OBJ_bsearch_ex() to return a pointer to the first
2154 element where the comparing function returns zero. This is useful
2155 if there are more than one element where the comparing function
2159 *) Make it possible to create self-signed certificates with 'openssl ca'
2160 in such a way that the self-signed certificate becomes part of the
2161 CA database and uses the same mechanisms for serial number generation
2162 as all other certificate signing. The new flag '-selfsign' enables
2163 this functionality. Adapt CA.sh and CA.pl.in.
2166 *) Add functionality to check the public key of a certificate request
2167 against a given private. This is useful to check that a certificate
2168 request can be signed by that key (self-signing).
2171 *) Make it possible to have multiple active certificates with the same
2172 subject in the CA index file. This is done only if the keyword
2173 'unique_subject' is set to 'no' in the main CA section (default
2174 if 'CA_default') of the configuration file. The value is saved
2175 with the database itself in a separate index attribute file,
2176 named like the index file with '.attr' appended to the name.
2179 *) Generate muti valued AVAs using '+' notation in config files for
2183 *) Support for nameConstraints certificate extension.
2186 *) Support for policyConstraints certificate extension.
2189 *) Support for policyMappings certificate extension.
2192 *) Make sure the default DSA_METHOD implementation only uses its
2193 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2194 and change its own handlers to be NULL so as to remove unnecessary
2195 indirection. This lets alternative implementations fallback to the
2196 default implementation more easily.
2199 *) Support for directoryName in GeneralName related extensions
2203 *) Make it possible to link applications using Makefile.shared.
2204 Make that possible even when linking against static libraries!
2207 *) Support for single pass processing for S/MIME signing. This now
2208 means that S/MIME signing can be done from a pipe, in addition
2209 cleartext signing (multipart/signed type) is effectively streaming
2210 and the signed data does not need to be all held in memory.
2212 This is done with a new flag PKCS7_STREAM. When this flag is set
2213 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2214 is done after the data is output (and digests calculated) in
2215 SMIME_write_PKCS7().
2218 *) Add full support for -rpath/-R, both in shared libraries and
2219 applications, at least on the platforms where it's known how
2223 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2224 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2225 will now compute a table of multiples of the generator that
2226 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2227 faster (notably in the case of a single point multiplication,
2228 scalar * generator).
2229 [Nils Larsch, Bodo Moeller]
2231 *) IPv6 support for certificate extensions. The various extensions
2232 which use the IP:a.b.c.d can now take IPv6 addresses using the
2233 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2237 *) Added an ENGINE that implements RSA by performing private key
2238 exponentiations with the GMP library. The conversions to and from
2239 GMP's mpz_t format aren't optimised nor are any montgomery forms
2240 cached, and on x86 it appears OpenSSL's own performance has caught up.
2241 However there are likely to be other architectures where GMP could
2242 provide a boost. This ENGINE is not built in by default, but it can be
2243 specified at Configure time and should be accompanied by the necessary
2244 linker additions, eg;
2245 ./config -DOPENSSL_USE_GMP -lgmp
2248 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2249 testing availability of engines with "-t" - the old behaviour is
2250 produced by increasing the feature's verbosity with "-tt".
2253 *) ECDSA routines: under certain error conditions uninitialized BN objects
2254 could be freed. Solution: make sure initialization is performed early
2255 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2259 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2260 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2261 software implementations. For DSA and DH, parameter generation can
2262 also be overriden by providing the appropriate method callbacks.
2265 *) Change the "progress" mechanism used in key-generation and
2266 primality testing to functions that take a new BN_GENCB pointer in
2267 place of callback/argument pairs. The new API functions have "_ex"
2268 postfixes and the older functions are reimplemented as wrappers for
2269 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2270 declarations of the old functions to help (graceful) attempts to
2271 migrate to the new functions. Also, the new key-generation API
2272 functions operate on a caller-supplied key-structure and return
2273 success/failure rather than returning a key or NULL - this is to
2274 help make "keygen" another member function of RSA_METHOD etc.
2276 Example for using the new callback interface:
2278 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2282 BN_GENCB_set(&my_cb, my_callback, my_arg);
2284 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2285 /* For the meaning of a, b in calls to my_callback(), see the
2286 * documentation of the function that calls the callback.
2287 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2288 * my_callback should return 1 if it wants BN_is_prime_ex()
2289 * to continue, or 0 to stop.
2294 *) Change the ZLIB compression method to be stateful, and make it
2295 available to TLS with the number defined in
2296 draft-ietf-tls-compression-04.txt.
2299 *) Add the ASN.1 structures and functions for CertificatePair, which
2300 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2302 CertificatePair ::= SEQUENCE {
2303 forward [0] Certificate OPTIONAL,
2304 reverse [1] Certificate OPTIONAL,
2305 -- at least one of the pair shall be present -- }
2307 Also implement the PEM functions to read and write certificate
2308 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2310 This needed to be defined, mostly for the sake of the LDAP
2311 attribute crossCertificatePair, but may prove useful elsewhere as
2315 *) Make it possible to inhibit symlinking of shared libraries in
2316 Makefile.shared, for Cygwin's sake.
2319 *) Extend the BIGNUM API by creating a function
2320 void BN_set_negative(BIGNUM *a, int neg);
2321 and a macro that behave like
2322 int BN_is_negative(const BIGNUM *a);
2324 to avoid the need to access 'a->neg' directly in applications.
2327 *) Implement fast modular reduction for pseudo-Mersenne primes
2328 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2329 EC_GROUP_new_curve_GFp() will now automatically use this
2331 [Nils Larsch <nla@trustcenter.de>]
2333 *) Add new lock type (CRYPTO_LOCK_BN).
2336 *) Change the ENGINE framework to automatically load engines
2337 dynamically from specific directories unless they could be
2338 found to already be built in or loaded. Move all the
2339 current engines except for the cryptodev one to a new
2341 The engines in engines/ are built as shared libraries if
2342 the "shared" options was given to ./Configure or ./config.
2343 Otherwise, they are inserted in libcrypto.a.
2344 /usr/local/ssl/engines is the default directory for dynamic
2345 engines, but that can be overriden at configure time through
2346 the usual use of --prefix and/or --openssldir, and at run
2347 time with the environment variable OPENSSL_ENGINES.
2348 [Geoff Thorpe and Richard Levitte]
2350 *) Add Makefile.shared, a helper makefile to build shared
2351 libraries. Addapt Makefile.org.
2354 *) Add version info to Win32 DLLs.
2355 [Peter 'Luna' Runestig" <peter@runestig.com>]
2357 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2358 can be added using this API to created arbitrary PKCS#12
2359 files while avoiding the low level API.
2361 New options to PKCS12_create(), key or cert can be NULL and
2362 will then be omitted from the output file. The encryption
2363 algorithm NIDs can be set to -1 for no encryption, the mac
2364 iteration count can be set to 0 to omit the mac.
2366 Enhance pkcs12 utility by making the -nokeys and -nocerts
2367 options work when creating a PKCS#12 file. New option -nomac
2368 to omit the mac, NONE can be set for an encryption algorithm.
2369 New code is modified to use the enhanced PKCS12_create()
2370 instead of the low level API.
2373 *) Extend ASN1 encoder to support indefinite length constructed
2374 encoding. This can output sequences tags and octet strings in
2375 this form. Modify pk7_asn1.c to support indefinite length
2376 encoding. This is experimental and needs additional code to
2377 be useful, such as an ASN1 bio and some enhanced streaming
2380 Extend template encode functionality so that tagging is passed
2381 down to the template encoder.
2384 *) Let 'openssl req' fail if an argument to '-newkey' is not
2385 recognized instead of using RSA as a default.
2388 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2389 As these are not official, they are not included in "ALL";
2390 the "ECCdraft" ciphersuite group alias can be used to select them.
2391 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2393 *) Add ECDH engine support.
2394 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2396 *) Add ECDH in new directory crypto/ecdh/.
2397 [Douglas Stebila (Sun Microsystems Laboratories)]
2399 *) Let BN_rand_range() abort with an error after 100 iterations
2400 without success (which indicates a broken PRNG).
2403 *) Change BN_mod_sqrt() so that it verifies that the input value
2404 is really the square of the return value. (Previously,
2405 BN_mod_sqrt would show GIGO behaviour.)
2408 *) Add named elliptic curves over binary fields from X9.62, SECG,
2409 and WAP/WTLS; add OIDs that were still missing.
2411 [Sheueling Chang Shantz and Douglas Stebila
2412 (Sun Microsystems Laboratories)]
2414 *) Extend the EC library for elliptic curves over binary fields
2415 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2418 EC_GF2m_simple_method
2422 EC_GROUP_new_curve_GF2m
2423 EC_GROUP_set_curve_GF2m
2424 EC_GROUP_get_curve_GF2m
2425 EC_POINT_set_affine_coordinates_GF2m
2426 EC_POINT_get_affine_coordinates_GF2m
2427 EC_POINT_set_compressed_coordinates_GF2m
2429 Point compression for binary fields is disabled by default for
2430 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2433 As binary polynomials are represented as BIGNUMs, various members
2434 of the EC_GROUP and EC_POINT data structures can be shared
2435 between the implementations for prime fields and binary fields;
2436 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2437 are essentially identical to their ..._GFp counterparts.
2438 (For simplicity, the '..._GFp' prefix has been dropped from
2439 various internal method names.)
2441 An internal 'field_div' method (similar to 'field_mul' and
2442 'field_sqr') has been added; this is used only for binary fields.
2444 [Sheueling Chang Shantz and Douglas Stebila
2445 (Sun Microsystems Laboratories)]
2447 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2448 through methods ('mul', 'precompute_mult').
2450 The generic implementations (now internally called 'ec_wNAF_mul'
2451 and 'ec_wNAF_precomputed_mult') remain the default if these
2452 methods are undefined.
2454 [Sheueling Chang Shantz and Douglas Stebila
2455 (Sun Microsystems Laboratories)]
2457 *) New function EC_GROUP_get_degree, which is defined through
2458 EC_METHOD. For curves over prime fields, this returns the bit
2459 length of the modulus.
2461 [Sheueling Chang Shantz and Douglas Stebila
2462 (Sun Microsystems Laboratories)]
2464 *) New functions EC_GROUP_dup, EC_POINT_dup.
2465 (These simply call ..._new and ..._copy).
2467 [Sheueling Chang Shantz and Douglas Stebila
2468 (Sun Microsystems Laboratories)]
2470 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2471 Polynomials are represented as BIGNUMs (where the sign bit is not
2472 used) in the following functions [macros]:
2475 BN_GF2m_sub [= BN_GF2m_add]
2476 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2477 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2478 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2480 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2481 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2482 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2483 BN_GF2m_cmp [= BN_ucmp]
2485 (Note that only the 'mod' functions are actually for fields GF(2^m).
2486 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2488 For some functions, an the irreducible polynomial defining a
2489 field can be given as an 'unsigned int[]' with strictly
2490 decreasing elements giving the indices of those bits that are set;
2491 i.e., p[] represents the polynomial
2492 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2494 p[0] > p[1] > ... > p[k] = 0.
2495 This applies to the following functions:
2500 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2501 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2503 BN_GF2m_mod_sqrt_arr
2504 BN_GF2m_mod_solve_quad_arr
2508 Conversion can be performed by the following functions:
2513 bntest.c has additional tests for binary polynomial arithmetic.
2515 Two implementations for BN_GF2m_mod_div() are available.
2516 The default algorithm simply uses BN_GF2m_mod_inv() and
2517 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2518 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2519 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2521 [Sheueling Chang Shantz and Douglas Stebila
2522 (Sun Microsystems Laboratories)]
2524 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2525 functionality is disabled at compile-time.
2526 [Douglas Stebila <douglas.stebila@sun.com>]
2528 *) Change default behaviour of 'openssl asn1parse' so that more
2529 information is visible when viewing, e.g., a certificate:
2531 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2532 mode the content of non-printable OCTET STRINGs is output in a
2533 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2534 avoid the appearance of a printable string.
2535 [Nils Larsch <nla@trustcenter.de>]
2537 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2539 EC_GROUP_set_asn1_flag()
2540 EC_GROUP_get_asn1_flag()
2541 EC_GROUP_set_point_conversion_form()
2542 EC_GROUP_get_point_conversion_form()
2543 These control ASN1 encoding details:
2544 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2545 has been set to OPENSSL_EC_NAMED_CURVE.
2546 - Points are encoded in uncompressed form by default; options for
2547 asn1_for are as for point2oct, namely
2548 POINT_CONVERSION_COMPRESSED
2549 POINT_CONVERSION_UNCOMPRESSED
2550 POINT_CONVERSION_HYBRID
2552 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2555 EC_GROUP_get0_seed()
2556 EC_GROUP_get_seed_len()
2557 This is used only for ASN1 purposes (so far).
2558 [Nils Larsch <nla@trustcenter.de>]
2560 *) Add 'field_type' member to EC_METHOD, which holds the NID
2561 of the appropriate field type OID. The new function
2562 EC_METHOD_get_field_type() returns this value.
2563 [Nils Larsch <nla@trustcenter.de>]
2568 EC_POINT_point2hex()
2569 EC_POINT_hex2point()
2570 providing useful interfaces to EC_POINT_point2oct() and
2571 EC_POINT_oct2point().
2572 [Nils Larsch <nla@trustcenter.de>]
2574 *) Change internals of the EC library so that the functions
2575 EC_GROUP_set_generator()
2576 EC_GROUP_get_generator()
2577 EC_GROUP_get_order()
2578 EC_GROUP_get_cofactor()
2579 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2580 to methods, which would lead to unnecessary code duplication when
2581 adding different types of curves.
2582 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2584 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2585 arithmetic, and such that modified wNAFs are generated
2586 (which avoid length expansion in many cases).
2589 *) Add a function EC_GROUP_check_discriminant() (defined via
2590 EC_METHOD) that verifies that the curve discriminant is non-zero.
2592 Add a function EC_GROUP_check() that makes some sanity tests
2593 on a EC_GROUP, its generator and order. This includes
2594 EC_GROUP_check_discriminant().
2595 [Nils Larsch <nla@trustcenter.de>]
2597 *) Add ECDSA in new directory crypto/ecdsa/.
2599 Add applications 'openssl ecparam' and 'openssl ecdsa'
2600 (these are based on 'openssl dsaparam' and 'openssl dsa').
2602 ECDSA support is also included in various other files across the
2603 library. Most notably,
2604 - 'openssl req' now has a '-newkey ecdsa:file' option;
2605 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2606 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2607 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2608 them suitable for ECDSA where domain parameters must be
2609 extracted before the specific public key;
2610 - ECDSA engine support has been added.
2611 [Nils Larsch <nla@trustcenter.de>]
2613 *) Include some named elliptic curves, and add OIDs from X9.62,
2614 SECG, and WAP/WTLS. Each curve can be obtained from the new
2616 EC_GROUP_new_by_curve_name(),
2617 and the list of available named curves can be obtained with
2618 EC_get_builtin_curves().
2619 Also add a 'curve_name' member to EC_GROUP objects, which can be
2621 EC_GROUP_set_curve_name()
2622 EC_GROUP_get_curve_name()
2623 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2625 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2626 was actually never needed) and in BN_mul(). The removal in BN_mul()
2627 required a small change in bn_mul_part_recursive() and the addition
2628 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2629 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2630 bn_sub_words() and bn_add_words() except they take arrays with
2634 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2636 *) Cleanse PEM buffers before freeing them since they may contain
2638 [Benjamin Bennett <ben@psc.edu>]
2640 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2641 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2642 authentication-only ciphersuites.
2645 *) Since AES128 and AES256 share a single mask bit in the logic of
2646 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2647 kludge to work properly if AES128 is available and AES256 isn't.
2650 *) Expand security boundary to match 1.1.1 module.
2653 *) Remove redundant features: hash file source, editing of test vectors
2654 modify fipsld to use external fips_premain.c signature.
2657 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2658 run algorithm test programs.
2661 *) Make algorithm test programs more tolerant of whitespace.
2664 *) Have SSL/TLS server implementation tolerate "mismatched" record
2665 protocol version while receiving ClientHello even if the
2666 ClientHello is fragmented. (The server can't insist on the
2667 particular protocol version it has chosen before the ServerHello
2668 message has informed the client about his choice.)
2671 *) Load error codes if they are not already present instead of using a
2672 static variable. This allows them to be cleanly unloaded and reloaded.
2675 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2677 *) Introduce limits to prevent malicious keys being able to
2678 cause a denial of service. (CVE-2006-2940)
2679 [Steve Henson, Bodo Moeller]
2681 *) Fix ASN.1 parsing of certain invalid structures that can result
2682 in a denial of service. (CVE-2006-2937) [Steve Henson]
2684 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2685 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2687 *) Fix SSL client code which could crash if connecting to a
2688 malicious SSLv2 server. (CVE-2006-4343)
2689 [Tavis Ormandy and Will Drewry, Google Security Team]
2691 *) Change ciphersuite string processing so that an explicit
2692 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2693 will no longer include "AES128-SHA"), and any other similar
2694 ciphersuite (same bitmap) from *other* protocol versions (so that
2695 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2696 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2697 changes from 0.9.8b and 0.9.8d.
2700 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2702 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2703 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2705 *) Change the Unix randomness entropy gathering to use poll() when
2706 possible instead of select(), since the latter has some
2707 undesirable limitations.
2708 [Darryl Miles via Richard Levitte and Bodo Moeller]
2710 *) Disable rogue ciphersuites:
2712 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2713 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2714 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2716 The latter two were purportedly from
2717 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2720 Also deactive the remaining ciphersuites from
2721 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2722 unofficial, and the ID has long expired.
2725 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2726 dual-core machines) and other potential thread-safety issues.
2729 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2731 *) Adapt fipsld and the build system to link against the validated FIPS
2732 module in FIPS mode.
2735 *) Fixes for VC++ 2005 build under Windows.
2738 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2739 from a Windows bash shell such as MSYS. It is autodetected from the
2740 "config" script when run from a VC++ environment. Modify standard VC++
2741 build to use fipscanister.o from the GNU make build.
2744 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2746 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2747 The value now differs depending on if you build for FIPS or not.
2748 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2749 safely run with a non-FIPSed libcrypto, as it may crash because of
2750 the difference induced by this change.
2753 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2755 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2756 (part of SSL_OP_ALL). This option used to disable the
2757 countermeasure against man-in-the-middle protocol-version
2758 rollback in the SSL 2.0 server implementation, which is a bad
2759 idea. (CVE-2005-2969)
2761 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2762 for Information Security, National Institute of Advanced Industrial
2763 Science and Technology [AIST], Japan)]
2765 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2766 mainly for FIPS compliance and not fully integrated at this stage.
2769 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2770 the exponentiation using a fixed-length exponent. (Otherwise,
2771 the information leaked through timing could expose the secret key
2772 after many signatures; cf. Bleichenbacher's attack on DSA with
2776 *) Make a new fixed-window mod_exp implementation the default for
2777 RSA, DSA, and DH private-key operations so that the sequence of
2778 squares and multiplies and the memory access pattern are
2779 independent of the particular secret key. This will mitigate
2780 cache-timing and potential related attacks.
2782 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2783 and this is automatically used by BN_mod_exp_mont() if the new flag
2784 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2785 will use this BN flag for private exponents unless the flag
2786 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2787 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2789 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2791 *) Change the client implementation for SSLv23_method() and
2792 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2793 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2794 (Previously, the SSL 2.0 backwards compatible Client Hello
2795 message format would be used even with SSL_OP_NO_SSLv2.)
2798 *) Add support for smime-type MIME parameter in S/MIME messages which some
2802 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2803 a threadsafe manner. Modify rsa code to use new function and add calls
2804 to dsa and dh code (which had race conditions before).
2807 *) Include the fixed error library code in the C error file definitions
2808 instead of fixing them up at runtime. This keeps the error code
2809 structures constant.
2812 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2814 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2817 *) Fixes for newer kerberos headers. NB: the casts are needed because
2818 the 'length' field is signed on one version and unsigned on another
2819 with no (?) obvious way to tell the difference, without these VC++
2820 complains. Also the "definition" of FAR (blank) is no longer included
2821 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2822 some needed definitions.
2825 *) Undo Cygwin change.
2828 *) Added support for proxy certificates according to RFC 3820.
2829 Because they may be a security thread to unaware applications,
2830 they must be explicitely allowed in run-time. See
2831 docs/HOWTO/proxy_certificates.txt for further information.
2834 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2836 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2837 server and client random values. Previously
2838 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2839 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2841 This change has negligible security impact because:
2843 1. Server and client random values still have 24 bytes of pseudo random
2846 2. Server and client random values are sent in the clear in the initial
2849 3. The master secret is derived using the premaster secret (48 bytes in
2850 size for static RSA ciphersuites) as well as client server and random
2853 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2856 [Stephen Henson, reported by UK NISCC]
2858 *) Use Windows randomness collection on Cygwin.
2861 *) Fix hang in EGD/PRNGD query when communication socket is closed
2862 prematurely by EGD/PRNGD.
2863 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2865 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2868 *) Back-port of selected performance improvements from development
2869 branch, as well as improved support for PowerPC platforms.
2872 *) Add lots of checks for memory allocation failure, error codes to indicate
2873 failure and freeing up memory if a failure occurs.
2874 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2876 *) Add new -passin argument to dgst.
2879 *) Perform some character comparisons of different types in X509_NAME_cmp:
2880 this is needed for some certificates that reencode DNs into UTF8Strings
2881 (in violation of RFC3280) and can't or wont issue name rollover
2885 *) Make an explicit check during certificate validation to see that
2886 the CA setting in each certificate on the chain is correct. As a
2887 side effect always do the following basic checks on extensions,
2888 not just when there's an associated purpose to the check:
2890 - if there is an unhandled critical extension (unless the user
2891 has chosen to ignore this fault)
2892 - if the path length has been exceeded (if one is set at all)
2893 - that certain extensions fit the associated purpose (if one has
2897 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2899 *) Avoid a race condition when CRLs are checked in a multi threaded
2900 environment. This would happen due to the reordering of the revoked
2901 entries during signature checking and serial number lookup. Now the
2902 encoding is cached and the serial number sort performed under a lock.
2903 Add new STACK function sk_is_sorted().
2906 *) Add Delta CRL to the extension code.
2909 *) Various fixes to s3_pkt.c so alerts are sent properly.
2910 [David Holmes <d.holmes@f5.com>]
2912 *) Reduce the chances of duplicate issuer name and serial numbers (in
2913 violation of RFC3280) using the OpenSSL certificate creation utilities.
2914 This is done by creating a random 64 bit value for the initial serial
2915 number when a serial number file is created or when a self signed
2916 certificate is created using 'openssl req -x509'. The initial serial
2917 number file is created using 'openssl x509 -next_serial' in CA.pl
2918 rather than being initialized to 1.
2921 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2923 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2924 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2925 [Joe Orton, Steve Henson]
2927 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2929 [Joe Orton, Steve Henson]
2931 *) Make it possible to have multiple active certificates with the same
2932 subject in the CA index file. This is done only if the keyword
2933 'unique_subject' is set to 'no' in the main CA section (default
2934 if 'CA_default') of the configuration file. The value is saved
2935 with the database itself in a separate index attribute file,
2936 named like the index file with '.attr' appended to the name.
2939 *) X509 verify fixes. Disable broken certificate workarounds when
2940 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2941 keyUsage extension present. Don't accept CRLs with unhandled critical
2942 extensions: since verify currently doesn't process CRL extensions this
2943 rejects a CRL with *any* critical extensions. Add new verify error codes
2947 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2948 A clarification of RFC2560 will require the use of OCTET STRINGs and
2949 some implementations cannot handle the current raw format. Since OpenSSL
2950 copies and compares OCSP nonces as opaque blobs without any attempt at
2951 parsing them this should not create any compatibility issues.
2954 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2955 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2956 this HMAC (and other) operations are several times slower than OpenSSL
2960 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2961 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2963 *) Use the correct content when signing type "other".
2966 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2968 *) Fix various bugs revealed by running the NISCC test suite:
2970 Stop out of bounds reads in the ASN1 code when presented with
2971 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2973 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2975 If verify callback ignores invalid public key errors don't try to check
2976 certificate signature with the NULL public key.
2980 *) New -ignore_err option in ocsp application to stop the server
2981 exiting on the first error in a request.
2984 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2985 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2989 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2990 extra data after the compression methods not only for TLS 1.0
2991 but also for SSL 3.0 (as required by the specification).
2992 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2994 *) Change X509_certificate_type() to mark the key as exported/exportable
2995 when it's 512 *bits* long, not 512 bytes.
2998 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2999 blocks during encryption.
3002 *) Various fixes to base64 BIO and non blocking I/O. On write
3003 flushes were not handled properly if the BIO retried. On read
3004 data was not being buffered properly and had various logic bugs.
3005 This also affects blocking I/O when the data being decoded is a
3009 *) Various S/MIME bugfixes and compatibility changes:
3010 output correct application/pkcs7 MIME type if
3011 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3012 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3013 of files as .eml work). Correctly handle very long lines in MIME
3017 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3019 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3020 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3021 a protocol version number mismatch like a decryption error
3022 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3025 *) Turn on RSA blinding by default in the default implementation
3026 to avoid a timing attack. Applications that don't want it can call
3027 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3028 They would be ill-advised to do so in most cases.
3029 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3031 *) Change RSA blinding code so that it works when the PRNG is not
3032 seeded (in this case, the secret RSA exponent is abused as
3033 an unpredictable seed -- if it is not unpredictable, there
3034 is no point in blinding anyway). Make RSA blinding thread-safe
3035 by remembering the creator's thread ID in rsa->blinding and
3036 having all other threads use local one-time blinding factors
3037 (this requires more computation than sharing rsa->blinding, but
3038 avoids excessive locking; and if an RSA object is not shared
3039 between threads, blinding will still be very fast).
3042 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3043 ENGINE as defaults for all supported algorithms irrespective of
3044 the 'flags' parameter. 'flags' is now honoured, so applications
3045 should make sure they are passing it correctly.
3048 *) Target "mingw" now allows native Windows code to be generated in
3049 the Cygwin environment as well as with the MinGW compiler.
3052 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3054 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3055 via timing by performing a MAC computation even if incorrrect
3056 block cipher padding has been found. This is a countermeasure
3057 against active attacks where the attacker has to distinguish
3058 between bad padding and a MAC verification error. (CVE-2003-0078)
3060 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3061 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3062 Martin Vuagnoux (EPFL, Ilion)]
3064 *) Make the no-err option work as intended. The intention with no-err
3065 is not to have the whole error stack handling routines removed from
3066 libcrypto, it's only intended to remove all the function name and
3067 reason texts, thereby removing some of the footprint that may not
3068 be interesting if those errors aren't displayed anyway.
3070 NOTE: it's still possible for any application or module to have it's
3071 own set of error texts inserted. The routines are there, just not
3072 used by default when no-err is given.
3075 *) Add support for FreeBSD on IA64.
3076 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3078 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3079 Kerberos function mit_des_cbc_cksum(). Before this change,
3080 the value returned by DES_cbc_cksum() was like the one from
3081 mit_des_cbc_cksum(), except the bytes were swapped.
3082 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3084 *) Allow an application to disable the automatic SSL chain building.
3085 Before this a rather primitive chain build was always performed in
3086 ssl3_output_cert_chain(): an application had no way to send the
3087 correct chain if the automatic operation produced an incorrect result.
3089 Now the chain builder is disabled if either:
3091 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3093 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3095 The reasoning behind this is that an application would not want the
3096 auto chain building to take place if extra chain certificates are
3097 present and it might also want a means of sending no additional
3098 certificates (for example the chain has two certificates and the
3102 *) Add the possibility to build without the ENGINE framework.
3103 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3105 *) Under Win32 gmtime() can return NULL: check return value in
3106 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3109 *) DSA routines: under certain error conditions uninitialized BN objects
3110 could be freed. Solution: make sure initialization is performed early
3111 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3112 Nils Larsch <nla@trustcenter.de> via PR#459)
3115 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3116 checked on reconnect on the client side, therefore session resumption
3117 could still fail with a "ssl session id is different" error. This
3118 behaviour is masked when SSL_OP_ALL is used due to
3119 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3120 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3121 followup to PR #377.
3124 *) IA-32 assembler support enhancements: unified ELF targets, support
3125 for SCO/Caldera platforms, fix for Cygwin shared build.
3128 *) Add support for FreeBSD on sparc64. As a consequence, support for
3129 FreeBSD on non-x86 processors is separate from x86 processors on
3130 the config script, much like the NetBSD support.
3131 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3133 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3135 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3138 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3139 code (06) was taken as the first octet of the session ID and the last
3140 octet was ignored consequently. As a result SSLv2 client side session
3141 caching could not have worked due to the session ID mismatch between
3143 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3147 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3148 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3152 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3153 seems that in spite of existing for more than a year, many application
3154 author have done nothing to provide the necessary callbacks, which
3155 means that this particular engine will not work properly anywhere.
3156 This is a very unfortunate situation which forces us, in the name
3157 of usability, to give the hw_ncipher.c a static lock, which is part
3159 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3160 appear in 0.9.8 or later. We EXPECT application authors to have
3161 dealt properly with this when 0.9.8 is released (unless we actually
3162 make such changes in the libcrypto locking code that changes will
3163 have to be made anyway).
3166 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3167 octets have been read, EOF or an error occurs. Without this change
3168 some truncated ASN1 structures will not produce an error.
3171 *) Disable Heimdal support, since it hasn't been fully implemented.
3172 Still give the possibility to force the use of Heimdal, but with
3173 warnings and a request that patches get sent to openssl-dev.
3176 *) Add the VC-CE target, introduce the WINCE sysname, and add
3177 INSTALL.WCE and appropriate conditionals to make it build.
3178 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3180 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3181 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3182 edit numbers of the version.
3183 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3185 *) Introduce safe string copy and catenation functions
3186 (BUF_strlcpy() and BUF_strlcat()).
3187 [Ben Laurie (CHATS) and Richard Levitte]
3189 *) Avoid using fixed-size buffers for one-line DNs.
3190 [Ben Laurie (CHATS)]
3192 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3193 resizing buffers containing secrets, and use where appropriate.
3194 [Ben Laurie (CHATS)]
3196 *) Avoid using fixed size buffers for configuration file location.
3197 [Ben Laurie (CHATS)]
3199 *) Avoid filename truncation for various CA files.
3200 [Ben Laurie (CHATS)]
3202 *) Use sizeof in preference to magic numbers.
3203 [Ben Laurie (CHATS)]
3205 *) Avoid filename truncation in cert requests.
3206 [Ben Laurie (CHATS)]
3208 *) Add assertions to check for (supposedly impossible) buffer
3210 [Ben Laurie (CHATS)]
3212 *) Don't cache truncated DNS entries in the local cache (this could
3213 potentially lead to a spoofing attack).
3214 [Ben Laurie (CHATS)]
3216 *) Fix various buffers to be large enough for hex/decimal
3217 representations in a platform independent manner.
3218 [Ben Laurie (CHATS)]
3220 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3221 resizing buffers containing secrets, and use where appropriate.
3222 [Ben Laurie (CHATS)]
3224 *) Add BIO_indent() to avoid much slightly worrying code to do
3226 [Ben Laurie (CHATS)]
3228 *) Convert sprintf()/BIO_puts() to BIO_printf().
3229 [Ben Laurie (CHATS)]
3231 *) buffer_gets() could terminate with the buffer only half
3233 [Ben Laurie (CHATS)]
3235 *) Add assertions to prevent user-supplied crypto functions from
3236 overflowing internal buffers by having large block sizes, etc.
3237 [Ben Laurie (CHATS)]
3239 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3241 [Ben Laurie (CHATS)]
3243 *) Eliminate unused copy of key in RC4.
3244 [Ben Laurie (CHATS)]
3246 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3247 [Ben Laurie (CHATS)]
3249 *) Fix off-by-one error in EGD path.
3250 [Ben Laurie (CHATS)]
3252 *) If RANDFILE path is too long, ignore instead of truncating.
3253 [Ben Laurie (CHATS)]
3255 *) Eliminate unused and incorrectly sized X.509 structure
3257 [Ben Laurie (CHATS)]
3259 *) Eliminate unused and dangerous function knumber().
3260 [Ben Laurie (CHATS)]
3262 *) Eliminate unused and dangerous structure, KSSL_ERR.
3263 [Ben Laurie (CHATS)]
3265 *) Protect against overlong session ID context length in an encoded
3266 session object. Since these are local, this does not appear to be
3268 [Ben Laurie (CHATS)]
3270 *) Change from security patch (see 0.9.6e below) that did not affect
3271 the 0.9.6 release series:
3273 Remote buffer overflow in SSL3 protocol - an attacker could
3274 supply an oversized master key in Kerberos-enabled versions.
3276 [Ben Laurie (CHATS)]
3278 *) Change the SSL kerb5 codes to match RFC 2712.
3281 *) Make -nameopt work fully for req and add -reqopt switch.
3282 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3284 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3285 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3287 *) Make sure tests can be performed even if the corresponding algorithms
3288 have been removed entirely. This was also the last step to make
3289 OpenSSL compilable with DJGPP under all reasonable conditions.
3290 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3292 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3293 to allow version independent disabling of normally unselected ciphers,
3294 which may be activated as a side-effect of selecting a single cipher.
3296 (E.g., cipher list string "RSA" enables ciphersuites that are left
3297 out of "ALL" because they do not provide symmetric encryption.
3298 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3299 [Lutz Jaenicke, Bodo Moeller]
3301 *) Add appropriate support for separate platform-dependent build
3302 directories. The recommended way to make a platform-dependent
3303 build directory is the following (tested on Linux), maybe with
3306 # Place yourself outside of the OpenSSL source tree. In
3307 # this example, the environment variable OPENSSL_SOURCE
3308 # is assumed to contain the absolute OpenSSL source directory.
3309 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3310 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3311 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3312 mkdir -p `dirname $F`
3313 ln -s $OPENSSL_SOURCE/$F $F
3316 To be absolutely sure not to disturb the source tree, a "make clean"
3317 is a good thing. If it isn't successfull, don't worry about it,
3318 it probably means the source directory is very clean.
3321 *) Make sure any ENGINE control commands make local copies of string
3322 pointers passed to them whenever necessary. Otherwise it is possible
3323 the caller may have overwritten (or deallocated) the original string
3324 data when a later ENGINE operation tries to use the stored values.
3325 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3327 *) Improve diagnostics in file reading and command-line digests.
3328 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3330 *) Add AES modes CFB and OFB to the object database. Correct an
3331 error in AES-CFB decryption.
3334 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3335 allows existing EVP_CIPHER_CTX structures to be reused after
3336 calling EVP_*Final(). This behaviour is used by encryption
3337 BIOs and some applications. This has the side effect that
3338 applications must explicitly clean up cipher contexts with
3339 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3342 *) Check the values of dna and dnb in bn_mul_recursive before calling
3343 bn_mul_comba (a non zero value means the a or b arrays do not contain
3344 n2 elements) and fallback to bn_mul_normal if either is not zero.
3347 *) Fix escaping of non-ASCII characters when using the -subj option
3348 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3351 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3352 form for "surname", serialNumber has no short form.
3353 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3354 therefore remove "mail" short name for "internet 7".
3355 The OID for unique identifiers in X509 certificates is
3356 x500UniqueIdentifier, not uniqueIdentifier.
3357 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3360 *) Add an "init" command to the ENGINE config module and auto initialize
3361 ENGINEs. Without any "init" command the ENGINE will be initialized
3362 after all ctrl commands have been executed on it. If init=1 the
3363 ENGINE is initailized at that point (ctrls before that point are run
3364 on the uninitialized ENGINE and after on the initialized one). If
3365 init=0 then the ENGINE will not be iniatialized at all.
3368 *) Fix the 'app_verify_callback' interface so that the user-defined
3369 argument is actually passed to the callback: In the
3370 SSL_CTX_set_cert_verify_callback() prototype, the callback
3371 declaration has been changed from
3374 int (*cb)(X509_STORE_CTX *,void *);
3375 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3376 i=s->ctx->app_verify_callback(&ctx)
3377 has been changed into
3378 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3380 To update applications using SSL_CTX_set_cert_verify_callback(),
3381 a dummy argument can be added to their callback functions.
3382 [D. K. Smetters <smetters@parc.xerox.com>]
3384 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3385 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3387 *) Add and OPENSSL_LOAD_CONF define which will cause
3388 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3389 This allows older applications to transparently support certain
3390 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3391 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3392 load the config file and OPENSSL_add_all_algorithms_conf() which will
3393 always load it have also been added.
3396 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3397 Adjust NIDs and EVP layer.
3398 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3400 *) Config modules support in openssl utility.
3402 Most commands now load modules from the config file,
3403 though in a few (such as version) this isn't done
3404 because it couldn't be used for anything.
3406 In the case of ca and req the config file used is
3407 the same as the utility itself: that is the -config
3408 command line option can be used to specify an
3412 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3413 use "openssl_conf" if filename is NULL use default openssl config file.
3416 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3417 config section name. Add a new flag to tolerate a missing config file
3418 and move code to CONF_modules_load_file().
3421 *) Support for crypto accelerator cards from Accelerated Encryption
3422 Processing, www.aep.ie. (Use engine 'aep')
3423 The support was copied from 0.9.6c [engine] and adapted/corrected
3424 to work with the new engine framework.
3425 [AEP Inc. and Richard Levitte]
3427 *) Support for SureWare crypto accelerator cards from Baltimore
3428 Technologies. (Use engine 'sureware')
3429 The support was copied from 0.9.6c [engine] and adapted
3430 to work with the new engine framework.
3433 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3434 make the newer ENGINE framework commands for the CHIL engine work.
3435 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3437 *) Make it possible to produce shared libraries on ReliantUNIX.
3438 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3440 *) Add the configuration target debug-linux-ppro.
3441 Make 'openssl rsa' use the general key loading routines
3442 implemented in apps.c, and make those routines able to
3443 handle the key format FORMAT_NETSCAPE and the variant
3445 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3447 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3448 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3450 *) Add -keyform to rsautl, and document -engine.
3451 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3453 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3454 BIO_R_NO_SUCH_FILE error code rather than the generic
3455 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3458 *) Add new functions
3460 ERR_peek_last_error_line
3461 ERR_peek_last_error_line_data.
3462 These are similar to
3465 ERR_peek_error_line_data,
3466 but report on the latest error recorded rather than the first one
3467 still in the error queue.
3468 [Ben Laurie, Bodo Moeller]
3470 *) default_algorithms option in ENGINE config module. This allows things
3472 default_algorithms = ALL
3473 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3476 *) Prelminary ENGINE config module.
3479 *) New experimental application configuration code.
3482 *) Change the AES code to follow the same name structure as all other
3483 symmetric ciphers, and behave the same way. Move everything to
3484 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3485 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3487 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3488 [Ben Laurie and Theo de Raadt]
3490 *) Add option to output public keys in req command.
3491 [Massimiliano Pala madwolf@openca.org]
3493 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3494 (up to about 10% better than before for P-192 and P-224).
3497 *) New functions/macros
3499 SSL_CTX_set_msg_callback(ctx, cb)
3500 SSL_CTX_set_msg_callback_arg(ctx, arg)
3501 SSL_set_msg_callback(ssl, cb)
3502 SSL_set_msg_callback_arg(ssl, arg)
3504 to request calling a callback function
3506 void cb(int write_p, int version, int content_type,
3507 const void *buf, size_t len, SSL *ssl, void *arg)
3509 whenever a protocol message has been completely received
3510 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3511 protocol version according to which the SSL library interprets
3512 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3513 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3514 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3515 specification (change_cipher_spec(20), alert(21), handshake(22)).
3516 'buf' and 'len' point to the actual message, 'ssl' to the
3517 SSL object, and 'arg' is the application-defined value set by
3518 SSL[_CTX]_set_msg_callback_arg().
3520 'openssl s_client' and 'openssl s_server' have new '-msg' options
3521 to enable a callback that displays all protocol messages.
3524 *) Change the shared library support so shared libraries are built as
3525 soon as the corresponding static library is finished, and thereby get
3526 openssl and the test programs linked against the shared library.
3527 This still only happens when the keyword "shard" has been given to
3528 the configuration scripts.
3530 NOTE: shared library support is still an experimental thing, and
3531 backward binary compatibility is still not guaranteed.
3532 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3534 *) Add support for Subject Information Access extension.
3535 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3537 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3538 additional bytes when new memory had to be allocated, not just
3539 when reusing an existing buffer.
3542 *) New command line and configuration option 'utf8' for the req command.
3543 This allows field values to be specified as UTF8 strings.
3546 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3547 runs for the former and machine-readable output for the latter.
3550 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3551 of the e-mail address in the DN (i.e., it will go into a certificate
3552 extension only). The new configuration file option 'email_in_dn = no'
3553 has the same effect.
3554 [Massimiliano Pala madwolf@openca.org]
3556 *) Change all functions with names starting with des_ to be starting
3557 with DES_ instead. Add wrappers that are compatible with libdes,
3558 but are named _ossl_old_des_*. Finally, add macros that map the
3559 des_* symbols to the corresponding _ossl_old_des_* if libdes
3560 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3561 desired, the des_* symbols will be mapped to DES_*, with one
3564 Since we provide two compatibility mappings, the user needs to
3565 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3566 compatibility is desired. The default (i.e., when that macro
3567 isn't defined) is OpenSSL 0.9.6c compatibility.
3569 There are also macros that enable and disable the support of old
3570 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3571 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3572 are defined, the default will apply: to support the old des routines.
3574 In either case, one must include openssl/des.h to get the correct
3575 definitions. Do not try to just include openssl/des_old.h, that
3578 NOTE: This is a major break of an old API into a new one. Software
3579 authors are encouraged to switch to the DES_ style functions. Some
3580 time in the future, des_old.h and the libdes compatibility functions
3581 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3582 default), and then completely removed.
3585 *) Test for certificates which contain unsupported critical extensions.
3586 If such a certificate is found during a verify operation it is
3587 rejected by default: this behaviour can be overridden by either
3588 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3589 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3590 X509_supported_extension() has also been added which returns 1 if a
3591 particular extension is supported.
3594 *) Modify the behaviour of EVP cipher functions in similar way to digests
3595 to retain compatibility with existing code.
3598 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3599 compatibility with existing code. In particular the 'ctx' parameter does
3600 not have to be to be initialized before the call to EVP_DigestInit() and
3601 it is tidied up after a call to EVP_DigestFinal(). New function
3602 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3603 EVP_MD_CTX_copy() changed to not require the destination to be
3604 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3605 requires the destination to be valid.
3607 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3608 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3611 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3612 so that complete 'Handshake' protocol structures are kept in memory
3613 instead of overwriting 'msg_type' and 'length' with 'body' data.
3616 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3617 [Massimo Santin via Richard Levitte]
3619 *) Major restructuring to the underlying ENGINE code. This includes
3620 reduction of linker bloat, separation of pure "ENGINE" manipulation
3621 (initialisation, etc) from functionality dealing with implementations
3622 of specific crypto iterfaces. This change also introduces integrated
3623 support for symmetric ciphers and digest implementations - so ENGINEs
3624 can now accelerate these by providing EVP_CIPHER and EVP_MD
3625 implementations of their own. This is detailed in crypto/engine/README
3626 as it couldn't be adequately described here. However, there are a few
3627 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3628 were changed in the original introduction of ENGINE code have now
3629 reverted back - the hooking from this code to ENGINE is now a good
3630 deal more passive and at run-time, operations deal directly with
3631 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3632 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3633 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3634 they were not being used by the framework as there is no concept of a
3635 BIGNUM_METHOD and they could not be generalised to the new
3636 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3637 ENGINE_cpy() has been removed as it cannot be consistently defined in
3641 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3644 *) Change mkdef.pl to sort symbols that get the same entry number,
3645 and make sure the automatically generated functions ERR_load_*
3646 become part of libeay.num as well.
3649 *) New function SSL_renegotiate_pending(). This returns true once
3650 renegotiation has been requested (either SSL_renegotiate() call
3651 or HelloRequest/ClientHello receveived from the peer) and becomes
3652 false once a handshake has been completed.
3653 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3654 sends a HelloRequest, but does not ensure that a handshake takes
3655 place. SSL_renegotiate_pending() is useful for checking if the
3656 client has followed the request.)
3659 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3660 By default, clients may request session resumption even during
3661 renegotiation (if session ID contexts permit); with this option,
3662 session resumption is possible only in the first handshake.
3664 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3665 more bits available for options that should not be part of
3666 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3669 *) Add some demos for certificate and certificate request creation.
3672 *) Make maximum certificate chain size accepted from the peer application
3673 settable (SSL*_get/set_max_cert_list()), as proposed by
3674 "Douglas E. Engert" <deengert@anl.gov>.
3677 *) Add support for shared libraries for Unixware-7
3678 (Boyd Lynn Gerber <gerberb@zenez.com>).
3681 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3682 be done prior to destruction. Use this to unload error strings from
3683 ENGINEs that load their own error strings. NB: This adds two new API
3684 functions to "get" and "set" this destroy handler in an ENGINE.
3687 *) Alter all existing ENGINE implementations (except "openssl" and
3688 "openbsd") to dynamically instantiate their own error strings. This
3689 makes them more flexible to be built both as statically-linked ENGINEs
3690 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3691 Also, add stub code to each that makes building them as self-contained
3692 shared-libraries easier (see README.ENGINE).
3695 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3696 implementations into applications that are completely implemented in
3697 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3698 commands that can be used to configure what shared-library to load and
3699 to control aspects of the way it is handled. Also, made an update to
3700 the README.ENGINE file that brings its information up-to-date and
3701 provides some information and instructions on the "dynamic" ENGINE
3702 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3705 *) Make it possible to unload ranges of ERR strings with a new
3706 "ERR_unload_strings" function.
3709 *) Add a copy() function to EVP_MD.
3712 *) Make EVP_MD routines take a context pointer instead of just the
3713 md_data void pointer.
3716 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3717 that the digest can only process a single chunk of data
3718 (typically because it is provided by a piece of
3719 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3720 is only going to provide a single chunk of data, and hence the
3721 framework needn't accumulate the data for oneshot drivers.
3724 *) As with "ERR", make it possible to replace the underlying "ex_data"
3725 functions. This change also alters the storage and management of global
3726 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3727 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3728 index counters. The API functions that use this state have been changed
3729 to take a "class_index" rather than pointers to the class's local STACK
3730 and counter, and there is now an API function to dynamically create new
3731 classes. This centralisation allows us to (a) plug a lot of the
3732 thread-safety problems that existed, and (b) makes it possible to clean
3733 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3734 such data would previously have always leaked in application code and
3735 workarounds were in place to make the memory debugging turn a blind eye
3736 to it. Application code that doesn't use this new function will still
3737 leak as before, but their memory debugging output will announce it now
3738 rather than letting it slide.
3740 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3741 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3742 has a return value to indicate success or failure.
3745 *) Make it possible to replace the underlying "ERR" functions such that the
3746 global state (2 LHASH tables and 2 locks) is only used by the "default"
3747 implementation. This change also adds two functions to "get" and "set"
3748 the implementation prior to it being automatically set the first time
3749 any other ERR function takes place. Ie. an application can call "get",
3750 pass the return value to a module it has just loaded, and that module
3751 can call its own "set" function using that value. This means the
3752 module's "ERR" operations will use (and modify) the error state in the
3753 application and not in its own statically linked copy of OpenSSL code.
3756 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3757 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3758 the operation, and provides a more encapsulated way for external code
3759 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3760 to use these functions rather than manually incrementing the counts.
3762 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3765 *) Add EVP test program.
3768 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3771 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3772 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3773 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3774 These allow a CRL to be built without having to access X509_CRL fields
3775 directly. Modify 'ca' application to use new functions.
3778 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3779 bug workarounds. Rollback attack detection is a security feature.
3780 The problem will only arise on OpenSSL servers when TLSv1 is not
3781 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3782 Software authors not wanting to support TLSv1 will have special reasons
3783 for their choice and can explicitly enable this option.
3784 [Bodo Moeller, Lutz Jaenicke]
3786 *) Rationalise EVP so it can be extended: don't include a union of
3787 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3788 (similar to those existing for EVP_CIPHER_CTX).
3793 EVP_MD_CTX_init(&md); /* new function call */
3794 EVP_DigestInit(&md, EVP_sha1());
3795 EVP_DigestUpdate(&md, in, len);
3796 EVP_DigestFinal(&md, out, NULL);
3797 EVP_MD_CTX_cleanup(&md); /* new function call */
3801 *) Make DES key schedule conform to the usual scheme, as well as
3802 correcting its structure. This means that calls to DES functions
3803 now have to pass a pointer to a des_key_schedule instead of a
3804 plain des_key_schedule (which was actually always a pointer
3807 des_key_schedule ks;
3809 des_set_key_checked(..., &ks);
3810 des_ncbc_encrypt(..., &ks, ...);
3812 (Note that a later change renames 'des_...' into 'DES_...'.)
3815 *) Initial reduction of linker bloat: the use of some functions, such as
3816 PEM causes large amounts of unused functions to be linked in due to
3817 poor organisation. For example pem_all.c contains every PEM function
3818 which has a knock on effect of linking in large amounts of (unused)
3819 ASN1 code. Grouping together similar functions and splitting unrelated
3820 functions prevents this.
3823 *) Cleanup of EVP macros.
3826 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3827 correct _ecb suffix.
3830 *) Add initial OCSP responder support to ocsp application. The
3831 revocation information is handled using the text based index
3832 use by the ca application. The responder can either handle
3833 requests generated internally, supplied in files (for example
3834 via a CGI script) or using an internal minimal server.
3837 *) Add configuration choices to get zlib compression for TLS.
3840 *) Changes to Kerberos SSL for RFC 2712 compliance:
3841 1. Implemented real KerberosWrapper, instead of just using
3842 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3843 2. Implemented optional authenticator field of KerberosWrapper.
3845 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3846 and authenticator structs; see crypto/krb5/.
3848 Generalized Kerberos calls to support multiple Kerberos libraries.
3849 [Vern Staats <staatsvr@asc.hpc.mil>,
3850 Jeffrey Altman <jaltman@columbia.edu>
3851 via Richard Levitte]
3853 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3854 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3855 values for each of the key sizes rather than having just
3856 parameters (and 'speed' generating keys each time).
3859 *) Speed up EVP routines.
3862 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3863 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3864 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3865 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3867 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3868 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3869 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3872 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3874 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3877 *) Added the OS2-EMX target.
3878 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3880 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3881 to support NCONF routines in extension code. New function CONF_set_nconf()
3882 to allow functions which take an NCONF to also handle the old LHASH
3883 structure: this means that the old CONF compatible routines can be
3884 retained (in particular wrt extensions) without having to duplicate the
3885 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3888 *) Enhance the general user interface with mechanisms for inner control
3889 and with possibilities to have yes/no kind of prompts.
3892 *) Change all calls to low level digest routines in the library and
3893 applications to use EVP. Add missing calls to HMAC_cleanup() and
3894 don't assume HMAC_CTX can be copied using memcpy().
3895 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3897 *) Add the possibility to control engines through control names but with
3898 arbitrary arguments instead of just a string.
3899 Change the key loaders to take a UI_METHOD instead of a callback
3900 function pointer. NOTE: this breaks binary compatibility with earlier
3901 versions of OpenSSL [engine].
3902 Adapt the nCipher code for these new conditions and add a card insertion
3906 *) Enhance the general user interface with mechanisms to better support
3907 dialog box interfaces, application-defined prompts, the possibility
3908 to use defaults (for example default passwords from somewhere else)
3909 and interrupts/cancellations.
3912 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3913 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3916 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3917 tidy up some unnecessarily weird code in 'sk_new()').
3918 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3920 *) Change the key loading routines for ENGINEs to use the same kind
3921 callback (pem_password_cb) as all other routines that need this
3925 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3926 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3927 than this minimum value is recommended.
3930 *) New random seeder for OpenVMS, using the system process statistics
3931 that are easily reachable.
3934 *) Windows apparently can't transparently handle global
3935 variables defined in DLLs. Initialisations such as:
3937 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3939 wont compile. This is used by the any applications that need to
3940 declare their own ASN1 modules. This was fixed by adding the option
3941 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3942 needed for static libraries under Win32.
3945 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3946 setting of purpose and trust fields. New X509_STORE trust and
3947 purpose functions and tidy up setting in other SSL functions.
3950 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3951 structure. These are inherited by X509_STORE_CTX when it is
3952 initialised. This allows various defaults to be set in the
3953 X509_STORE structure (such as flags for CRL checking and custom
3954 purpose or trust settings) for functions which only use X509_STORE_CTX
3955 internally such as S/MIME.
3957 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3958 trust settings if they are not set in X509_STORE. This allows X509_STORE
3959 purposes and trust (in S/MIME for example) to override any set by default.
3961 Add command line options for CRL checking to smime, s_client and s_server
3965 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3966 are set then the CRL is looked up in the X509_STORE structure and
3967 its validity and signature checked, then if the certificate is found
3968 in the CRL the verify fails with a revoked error.
3970 Various new CRL related callbacks added to X509_STORE_CTX structure.
3972 Command line options added to 'verify' application to support this.
3974 This needs some additional work, such as being able to handle multiple
3975 CRLs with different times, extension based lookup (rather than just
3976 by subject name) and ultimately more complete V2 CRL extension
3980 *) Add a general user interface API (crypto/ui/). This is designed
3981 to replace things like des_read_password and friends (backward
3982 compatibility functions using this new API are provided).
3983 The purpose is to remove prompting functions from the DES code
3984 section as well as provide for prompting through dialog boxes in
3985 a window system and the like.
3988 *) Add "ex_data" support to ENGINE so implementations can add state at a
3989 per-structure level rather than having to store it globally.
3992 *) Make it possible for ENGINE structures to be copied when retrieved by
3993 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3994 This causes the "original" ENGINE structure to act like a template,
3995 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3996 operational state can be localised to each ENGINE structure, despite the
3997 fact they all share the same "methods". New ENGINE structures returned in
3998 this case have no functional references and the return value is the single
3999 structural reference. This matches the single structural reference returned
4000 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4004 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4005 needs to match any other type at all we need to manually clear the
4009 *) Changes to the "openssl engine" utility to include;
4010 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4011 about an ENGINE's available control commands.
4012 - executing control commands from command line arguments using the
4013 '-pre' and '-post' switches. '-post' is only used if '-t' is
4014 specified and the ENGINE is successfully initialised. The syntax for
4015 the individual commands are colon-separated, for example;
4016 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4019 *) New dynamic control command support for ENGINEs. ENGINEs can now
4020 declare their own commands (numbers), names (strings), descriptions,
4021 and input types for run-time discovery by calling applications. A
4022 subset of these commands are implicitly classed as "executable"
4023 depending on their input type, and only these can be invoked through
4024 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4025 can be based on user input, config files, etc). The distinction is
4026 that "executable" commands cannot return anything other than a boolean
4027 result and can only support numeric or string input, whereas some
4028 discoverable commands may only be for direct use through
4029 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4030 pointers, or other custom uses. The "executable" commands are to
4031 support parameterisations of ENGINE behaviour that can be
4032 unambiguously defined by ENGINEs and used consistently across any
4033 OpenSSL-based application. Commands have been added to all the
4034 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4035 control over shared-library paths without source code alterations.
4038 *) Changed all ENGINE implementations to dynamically allocate their
4039 ENGINEs rather than declaring them statically. Apart from this being
4040 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4041 this also allows the implementations to compile without using the
4042 internal engine_int.h header.
4045 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4046 'const' value. Any code that should be able to modify a RAND_METHOD
4047 should already have non-const pointers to it (ie. they should only
4048 modify their own ones).
4051 *) Made a variety of little tweaks to the ENGINE code.
4052 - "atalla" and "ubsec" string definitions were moved from header files
4053 to C code. "nuron" string definitions were placed in variables
4054 rather than hard-coded - allowing parameterisation of these values
4055 later on via ctrl() commands.
4056 - Removed unused "#if 0"'d code.
4057 - Fixed engine list iteration code so it uses ENGINE_free() to release
4058 structural references.
4059 - Constified the RAND_METHOD element of ENGINE structures.
4060 - Constified various get/set functions as appropriate and added
4061 missing functions (including a catch-all ENGINE_cpy that duplicates
4062 all ENGINE values onto a new ENGINE except reference counts/state).
4063 - Removed NULL parameter checks in get/set functions. Setting a method
4064 or function to NULL is a way of cancelling out a previously set
4065 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4066 and doesn't justify the extra error symbols and code.
4067 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4068 flags from engine_int.h to engine.h.
4069 - Changed prototypes for ENGINE handler functions (init(), finish(),
4070 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4073 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4074 to the algorithm using long division. The binary algorithm can be
4075 used only if the modulus is odd. On 32-bit systems, it is faster
4076 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4077 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4078 up to 450 bits. In 64-bit environments, the binary algorithm
4079 appears to be advantageous for much longer moduli; here we use it
4080 for moduli up to 2048 bits.
4083 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4084 could not support the combine flag in choice fields.
4087 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4088 extensions from a certificate request to the certificate.
4091 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4092 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4093 file: this allows the display of the certificate about to be
4094 signed to be customised, to allow certain fields to be included
4095 or excluded and extension details. The old system didn't display
4096 multicharacter strings properly, omitted fields not in the policy
4097 and couldn't display additional details such as extensions.
4100 *) Function EC_POINTs_mul for multiple scalar multiplication
4101 of an arbitrary number of elliptic curve points
4102 \sum scalars[i]*points[i],
4103 optionally including the generator defined for the EC_GROUP:
4104 scalar*generator + \sum scalars[i]*points[i].
4106 EC_POINT_mul is a simple wrapper function for the typical case
4107 that the point list has just one item (besides the optional
4111 *) First EC_METHODs for curves over GF(p):
4113 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4114 operations and provides various method functions that can also
4115 operate with faster implementations of modular arithmetic.
4117 EC_GFp_mont_method() reuses most functions that are part of
4118 EC_GFp_simple_method, but uses Montgomery arithmetic.
4120 [Bodo Moeller; point addition and point doubling
4121 implementation directly derived from source code provided by
4122 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4124 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4125 crypto/ec/ec_lib.c):
4127 Curves are EC_GROUP objects (with an optional group generator)
4128 based on EC_METHODs that are built into the library.
4130 Points are EC_POINT objects based on EC_GROUP objects.
4132 Most of the framework would be able to handle curves over arbitrary
4133 finite fields, but as there are no obvious types for fields other
4134 than GF(p), some functions are limited to that for now.
4137 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4138 that the file contains a complete HTTP response.
4141 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4142 change the def and num file printf format specifier from "%-40sXXX"
4143 to "%-39s XXX". The latter will always guarantee a space after the
4144 field while the former will cause them to run together if the field
4145 is 40 of more characters long.
4148 *) Constify the cipher and digest 'method' functions and structures
4149 and modify related functions to take constant EVP_MD and EVP_CIPHER
4153 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4154 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4157 *) Modify EVP_Digest*() routines so they now return values. Although the
4158 internal software routines can never fail additional hardware versions
4162 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4164 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4165 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4168 ERR_R_NESTED_ASN1_ERROR
4170 ERR_R_MISSING_ASN1_EOS
4171 were 4 .. 9, conflicting with
4172 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4174 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4175 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4177 Add new error code 'ERR_R_INTERNAL_ERROR'.
4180 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4184 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4185 sets the subject name for a new request or supersedes the
4186 subject name in a given request. Formats that can be parsed are
4187 'CN=Some Name, OU=myOU, C=IT'
4189 'CN=Some Name/OU=myOU/C=IT'.
4191 Add options '-batch' and '-verbose' to 'openssl req'.
4192 [Massimiliano Pala <madwolf@hackmasters.net>]
4194 *) Introduce the possibility to access global variables through
4195 functions on platform were that's the best way to handle exporting
4196 global variables in shared libraries. To enable this functionality,
4197 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4198 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4199 is normally done by Configure or something similar).
4201 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4202 in the source file (foo.c) like this:
4204 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4205 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4207 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4208 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4210 OPENSSL_DECLARE_GLOBAL(int,foo);
4211 #define foo OPENSSL_GLOBAL_REF(foo)
4212 OPENSSL_DECLARE_GLOBAL(double,bar);
4213 #define bar OPENSSL_GLOBAL_REF(bar)
4215 The #defines are very important, and therefore so is including the
4216 header file everywhere where the defined globals are used.
4218 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4219 of ASN.1 items, but that structure is a bit different.
4221 The largest change is in util/mkdef.pl which has been enhanced with
4222 better and easier to understand logic to choose which symbols should
4223 go into the Windows .def files as well as a number of fixes and code
4224 cleanup (among others, algorithm keywords are now sorted
4225 lexicographically to avoid constant rewrites).
4228 *) In BN_div() keep a copy of the sign of 'num' before writing the
4229 result to 'rm' because if rm==num the value will be overwritten
4230 and produce the wrong result if 'num' is negative: this caused
4231 problems with BN_mod() and BN_nnmod().
4234 *) Function OCSP_request_verify(). This checks the signature on an
4235 OCSP request and verifies the signer certificate. The signer
4236 certificate is just checked for a generic purpose and OCSP request
4240 *) Add OCSP_check_validity() function to check the validity of OCSP
4241 responses. OCSP responses are prepared in real time and may only
4242 be a few seconds old. Simply checking that the current time lies
4243 between thisUpdate and nextUpdate max reject otherwise valid responses
4244 caused by either OCSP responder or client clock inaccuracy. Instead
4245 we allow thisUpdate and nextUpdate to fall within a certain period of
4246 the current time. The age of the response can also optionally be
4247 checked. Two new options -validity_period and -status_age added to
4251 *) If signature or public key algorithm is unrecognized print out its
4252 OID rather that just UNKNOWN.
4255 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4256 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4257 ID to be generated from the issuer certificate alone which can then be
4258 passed to OCSP_id_issuer_cmp().
4261 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4262 ASN1 modules to export functions returning ASN1_ITEM pointers
4263 instead of the ASN1_ITEM structures themselves. This adds several
4264 new macros which allow the underlying ASN1 function/structure to
4265 be accessed transparently. As a result code should not use ASN1_ITEM
4266 references directly (such as &X509_it) but instead use the relevant
4267 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4268 use of the new ASN1 code on platforms where exporting structures
4269 is problematical (for example in shared libraries) but exporting
4270 functions returning pointers to structures is not.
4273 *) Add support for overriding the generation of SSL/TLS session IDs.
4274 These callbacks can be registered either in an SSL_CTX or per SSL.
4275 The purpose of this is to allow applications to control, if they wish,
4276 the arbitrary values chosen for use as session IDs, particularly as it
4277 can be useful for session caching in multiple-server environments. A
4278 command-line switch for testing this (and any client code that wishes
4279 to use such a feature) has been added to "s_server".
4280 [Geoff Thorpe, Lutz Jaenicke]
4282 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4283 of the form '#if defined(...) || defined(...) || ...' and
4284 '#if !defined(...) && !defined(...) && ...'. This also avoids
4285 the growing number of special cases it was previously handling.
4288 *) Make all configuration macros available for application by making
4289 sure they are available in opensslconf.h, by giving them names starting
4290 with "OPENSSL_" to avoid conflicts with other packages and by making
4291 sure e_os2.h will cover all platform-specific cases together with
4293 Additionally, it is now possible to define configuration/platform-
4294 specific names (called "system identities"). In the C code, these
4295 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4296 macro with the name beginning with "OPENSSL_SYS_", which is determined
4297 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4301 *) New option -set_serial to 'req' and 'x509' this allows the serial
4302 number to use to be specified on the command line. Previously self
4303 signed certificates were hard coded with serial number 0 and the
4304 CA options of 'x509' had to use a serial number in a file which was
4308 *) New options to 'ca' utility to support V2 CRL entry extensions.
4309 Currently CRL reason, invalidity date and hold instruction are
4310 supported. Add new CRL extensions to V3 code and some new objects.
4313 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4314 disable standard block padding (aka PKCS#5 padding) in the EVP
4315 API, which was previously mandatory. This means that the data is
4316 not padded in any way and so the total length much be a multiple
4317 of the block size, otherwise an error occurs.
4320 *) Initial (incomplete) OCSP SSL support.
4323 *) New function OCSP_parse_url(). This splits up a URL into its host,
4324 port and path components: primarily to parse OCSP URLs. New -url
4325 option to ocsp utility.
4328 *) New nonce behavior. The return value of OCSP_check_nonce() now
4329 reflects the various checks performed. Applications can decide
4330 whether to tolerate certain situations such as an absent nonce
4331 in a response when one was present in a request: the ocsp application
4332 just prints out a warning. New function OCSP_add1_basic_nonce()
4333 this is to allow responders to include a nonce in a response even if
4334 the request is nonce-less.
4337 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4338 skipped when using openssl x509 multiple times on a single input file,
4339 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4342 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4343 set string type: to handle setting ASN1_TIME structures. Fix ca
4344 utility to correctly initialize revocation date of CRLs.
4347 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4348 the clients preferred ciphersuites and rather use its own preferences.
4349 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4350 Internet Explorer by ensuring unchanged hash method during stepup.
4351 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4354 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4355 to aes and add a new 'exist' option to print out symbols that don't
4359 *) Additional options to ocsp utility to allow flags to be set and
4360 additional certificates supplied.
4363 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4364 OCSP client a number of certificate to only verify the response
4368 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4369 handle the new API. Currently only ECB, CBC modes supported. Add new
4372 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4373 Encryption Standard (AES) Ciphersuites for Transport Layer
4374 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4375 not enabled by default and were not part of the "ALL" ciphersuite
4376 alias because they were not yet official; they could be
4377 explicitly requested by specifying the "AESdraft" ciphersuite
4378 group alias. In the final release of OpenSSL 0.9.7, the group
4379 alias is called "AES" and is part of "ALL".)
4380 [Ben Laurie, Steve Henson, Bodo Moeller]
4382 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4383 request to response.
4386 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4387 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4388 extract information from a certificate request. OCSP_response_create()
4389 creates a response and optionally adds a basic response structure.
4390 OCSP_basic_add1_status() adds a complete single response to a basic
4391 response and returns the OCSP_SINGLERESP structure just added (to allow
4392 extensions to be included for example). OCSP_basic_add1_cert() adds a
4393 certificate to a basic response and OCSP_basic_sign() signs a basic
4394 response with various flags. New helper functions ASN1_TIME_check()
4395 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4396 (converts ASN1_TIME to GeneralizedTime).
4399 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4400 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4401 structure from a certificate. X509_pubkey_digest() digests the public_key
4402 contents: this is used in various key identifiers.
4405 *) Make sk_sort() tolerate a NULL argument.
4406 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4408 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4409 passed by the function are trusted implicitly. If any of them signed the
4410 response then it is assumed to be valid and is not verified.
4413 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4414 to data. This was previously part of the PKCS7 ASN1 code. This
4415 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4416 [Steve Henson, reported by Kenneth R. Robinette
4417 <support@securenetterm.com>]
4419 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4420 routines: without these tracing memory leaks is very painful.
4421 Fix leaks in PKCS12 and PKCS7 routines.
4424 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4425 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4426 effectively meant GeneralizedTime would never be used. Now it
4427 is initialised to -1 but X509_time_adj() now has to check the value
4428 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4429 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4430 [Steve Henson, reported by Kenneth R. Robinette
4431 <support@securenetterm.com>]
4433 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4434 result in a zero length in the ASN1_INTEGER structure which was
4435 not consistent with the structure when d2i_ASN1_INTEGER() was used
4436 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4437 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4438 where it did not print out a minus for negative ASN1_INTEGER.
4441 *) Add summary printout to ocsp utility. The various functions which
4442 convert status values to strings have been renamed to:
4443 OCSP_response_status_str(), OCSP_cert_status_str() and
4444 OCSP_crl_reason_str() and are no longer static. New options
4445 to verify nonce values and to disable verification. OCSP response
4446 printout format cleaned up.
4449 *) Add additional OCSP certificate checks. These are those specified
4450 in RFC2560. This consists of two separate checks: the CA of the
4451 certificate being checked must either be the OCSP signer certificate
4452 or the issuer of the OCSP signer certificate. In the latter case the
4453 OCSP signer certificate must contain the OCSP signing extended key
4454 usage. This check is performed by attempting to match the OCSP
4455 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4456 in the OCSP_CERTID structures of the response.
4459 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4460 and related routines. This uses the standard OpenSSL certificate
4461 verify routines to perform initial checks (just CA validity) and
4462 to obtain the certificate chain. Then additional checks will be
4463 performed on the chain. Currently the root CA is checked to see
4464 if it is explicitly trusted for OCSP signing. This is used to set
4465 a root CA as a global signing root: that is any certificate that
4466 chains to that CA is an acceptable OCSP signing certificate.
4469 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4470 extensions from a separate configuration file.
4471 As when reading extensions from the main configuration file,
4472 the '-extensions ...' option may be used for specifying the
4474 [Massimiliano Pala <madwolf@comune.modena.it>]
4476 *) New OCSP utility. Allows OCSP requests to be generated or
4477 read. The request can be sent to a responder and the output
4478 parsed, outputed or printed in text form. Not complete yet:
4479 still needs to check the OCSP response validity.
4482 *) New subcommands for 'openssl ca':
4483 'openssl ca -status <serial>' prints the status of the cert with
4484 the given serial number (according to the index file).
4485 'openssl ca -updatedb' updates the expiry status of certificates
4487 [Massimiliano Pala <madwolf@comune.modena.it>]
4489 *) New '-newreq-nodes' command option to CA.pl. This is like
4490 '-newreq', but calls 'openssl req' with the '-nodes' option
4491 so that the resulting key is not encrypted.
4492 [Damien Miller <djm@mindrot.org>]
4494 *) New configuration for the GNU Hurd.
4495 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4497 *) Initial code to implement OCSP basic response verify. This
4498 is currently incomplete. Currently just finds the signer's
4499 certificate and verifies the signature on the response.
4502 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4503 value of OPENSSLDIR. This is available via the new '-d' option
4504 to 'openssl version', and is also included in 'openssl version -a'.
4507 *) Allowing defining memory allocation callbacks that will be given
4508 file name and line number information in additional arguments
4509 (a const char* and an int). The basic functionality remains, as
4510 well as the original possibility to just replace malloc(),
4511 realloc() and free() by functions that do not know about these
4512 additional arguments. To register and find out the current
4513 settings for extended allocation functions, the following
4514 functions are provided:
4516 CRYPTO_set_mem_ex_functions
4517 CRYPTO_set_locked_mem_ex_functions
4518 CRYPTO_get_mem_ex_functions
4519 CRYPTO_get_locked_mem_ex_functions
4521 These work the same way as CRYPTO_set_mem_functions and friends.
4522 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4523 extended allocation function is enabled.
4524 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4525 a conventional allocation function is enabled.
4526 [Richard Levitte, Bodo Moeller]
4528 *) Finish off removing the remaining LHASH function pointer casts.
4529 There should no longer be any prototype-casting required when using
4530 the LHASH abstraction, and any casts that remain are "bugs". See
4531 the callback types and macros at the head of lhash.h for details
4532 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4535 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4536 If /dev/[u]random devices are not available or do not return enough
4537 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4539 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4540 /etc/entropy will be queried once each in this sequence, quering stops
4541 when enough entropy was collected without querying more sockets.
4544 *) Change the Unix RAND_poll() variant to be able to poll several
4545 random devices, as specified by DEVRANDOM, until a sufficient amount
4546 of data has been collected. We spend at most 10 ms on each file
4547 (select timeout) and read in non-blocking mode. DEVRANDOM now
4548 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4549 (previously it was just the string "/dev/urandom"), so on typical
4550 platforms the 10 ms delay will never occur.
4551 Also separate out the Unix variant to its own file, rand_unix.c.
4552 For VMS, there's a currently-empty rand_vms.c.
4555 *) Move OCSP client related routines to ocsp_cl.c. These
4556 provide utility functions which an application needing
4557 to issue a request to an OCSP responder and analyse the
4558 response will typically need: as opposed to those which an
4559 OCSP responder itself would need which will be added later.
4561 OCSP_request_sign() signs an OCSP request with an API similar
4562 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4563 response. OCSP_response_get1_basic() extracts basic response
4564 from response. OCSP_resp_find_status(): finds and extracts status
4565 information from an OCSP_CERTID structure (which will be created
4566 when the request structure is built). These are built from lower
4567 level functions which work on OCSP_SINGLERESP structures but
4568 wont normally be used unless the application wishes to examine
4569 extensions in the OCSP response for example.
4571 Replace nonce routines with a pair of functions.
4572 OCSP_request_add1_nonce() adds a nonce value and optionally
4573 generates a random value. OCSP_check_nonce() checks the
4574 validity of the nonce in an OCSP response.
4577 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4578 This doesn't copy the supplied OCSP_CERTID and avoids the
4579 need to free up the newly created id. Change return type
4580 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4581 This can then be used to add extensions to the request.
4582 Deleted OCSP_request_new(), since most of its functionality
4583 is now in OCSP_REQUEST_new() (and the case insensitive name
4584 clash) apart from the ability to set the request name which
4585 will be added elsewhere.
4588 *) Update OCSP API. Remove obsolete extensions argument from
4589 various functions. Extensions are now handled using the new
4590 OCSP extension code. New simple OCSP HTTP function which
4591 can be used to send requests and parse the response.
4594 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4595 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4596 uses the special reorder version of SET OF to sort the attributes
4597 and reorder them to match the encoded order. This resolves a long
4598 standing problem: a verify on a PKCS7 structure just after signing
4599 it used to fail because the attribute order did not match the
4600 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4601 it uses the received order. This is necessary to tolerate some broken
4602 software that does not order SET OF. This is handled by encoding
4603 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4604 to produce the required SET OF.
4607 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4608 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4609 files to get correct declarations of the ASN.1 item variables.
4612 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4613 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4614 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4615 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4616 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4617 ASN1_ITEM and no wrapper functions.
4620 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4621 replace the old function pointer based I/O routines. Change most of
4622 the *_d2i_bio() and *_d2i_fp() functions to use these.
4625 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4626 lines, recognice more "algorithms" that can be deselected, and make
4627 it complain about algorithm deselection that isn't recognised.
4630 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4631 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4632 to use new functions. Add NO_ASN1_OLD which can be set to remove
4633 some old style ASN1 functions: this can be used to determine if old
4634 code will still work when these eventually go away.
4637 *) New extension functions for OCSP structures, these follow the
4638 same conventions as certificates and CRLs.
4641 *) New function X509V3_add1_i2d(). This automatically encodes and
4642 adds an extension. Its behaviour can be customised with various
4643 flags to append, replace or delete. Various wrappers added for
4644 certifcates and CRLs.
4647 *) Fix to avoid calling the underlying ASN1 print routine when
4648 an extension cannot be parsed. Correct a typo in the
4649 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4652 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4653 entries for variables.
4656 *) Add functionality to apps/openssl.c for detecting locking
4657 problems: As the program is single-threaded, all we have
4658 to do is register a locking callback using an array for
4659 storing which locks are currently held by the program.
4662 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4663 SSL_get_ex_data_X509_STORE_idx(), which is used in
4664 ssl_verify_cert_chain() and thus can be called at any time
4665 during TLS/SSL handshakes so that thread-safety is essential.
4666 Unfortunately, the ex_data design is not at all suited
4667 for multi-threaded use, so it probably should be abolished.
4670 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4671 [Broadcom, tweaked and integrated by Geoff Thorpe]
4673 *) Move common extension printing code to new function
4674 X509V3_print_extensions(). Reorganise OCSP print routines and
4675 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4678 *) New function X509_signature_print() to remove duplication in some
4682 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4683 set (this was treated exactly the same as SET OF previously). This
4684 is used to reorder the STACK representing the structure to match the
4685 encoding. This will be used to get round a problem where a PKCS7
4686 structure which was signed could not be verified because the STACK
4687 order did not reflect the encoded order.
4690 *) Reimplement the OCSP ASN1 module using the new code.
4693 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4694 for its ASN1 operations. The old style function pointers still exist
4695 for now but they will eventually go away.
4698 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4699 completely replaces the old ASN1 functionality with a table driven
4700 encoder and decoder which interprets an ASN1_ITEM structure describing
4701 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4702 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4703 has also been converted to the new form.
4706 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4707 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4708 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4709 for negative moduli.
4712 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4713 of not touching the result's sign bit.
4716 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4720 *) Changed the LHASH code to use prototypes for callbacks, and created
4721 macros to declare and implement thin (optionally static) functions
4722 that provide type-safety and avoid function pointer casting for the
4723 type-specific callbacks.
4726 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4728 [Veers Staats <staatsvr@asc.hpc.mil>,
4729 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4731 *) Reformat the FAQ so the different questions and answers can be divided
4732 in sections depending on the subject.
4735 *) Have the zlib compression code load ZLIB.DLL dynamically under
4739 *) New function BN_mod_sqrt for computing square roots modulo a prime
4740 (using the probabilistic Tonelli-Shanks algorithm unless
4741 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4742 be handled deterministically).
4743 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4745 *) Make BN_mod_inverse faster by explicitly handling small quotients
4746 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4747 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4750 *) New function BN_kronecker.
4753 *) Fix BN_gcd so that it works on negative inputs; the result is
4754 positive unless both parameters are zero.
4755 Previously something reasonably close to an infinite loop was
4756 possible because numbers could be growing instead of shrinking
4757 in the implementation of Euclid's algorithm.
4760 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4761 sign of the number in question.
4763 Fix BN_is_word(a,w) to work correctly for w == 0.
4765 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4766 because its test if the absolute value of 'a' equals 'w'.
4767 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4768 it exists mostly for use in the implementations of BN_is_zero(),
4769 BN_is_one(), and BN_is_word().
4772 *) New function BN_swap.
4775 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4776 the exponentiation functions are more likely to produce reasonable
4777 results on negative inputs.
4780 *) Change BN_mod_mul so that the result is always non-negative.
4781 Previously, it could be negative if one of the factors was negative;
4782 I don't think anyone really wanted that behaviour.
4785 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4786 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4787 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4788 and add new functions:
4797 BN_mod_lshift1_quick
4801 These functions always generate non-negative results.
4803 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4804 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4806 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4807 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4808 be reduced modulo m.
4809 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4812 The following entry accidentily appeared in the CHANGES file
4813 distributed with OpenSSL 0.9.7. The modifications described in
4814 it do *not* apply to OpenSSL 0.9.7.
4816 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4817 was actually never needed) and in BN_mul(). The removal in BN_mul()
4818 required a small change in bn_mul_part_recursive() and the addition
4819 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4820 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4821 bn_sub_words() and bn_add_words() except they take arrays with
4826 *) In 'openssl passwd', verify passwords read from the terminal
4827 unless the '-salt' option is used (which usually means that
4828 verification would just waste user's time since the resulting
4829 hash is going to be compared with some given password hash)
4830 or the new '-noverify' option is used.
4832 This is an incompatible change, but it does not affect
4833 non-interactive use of 'openssl passwd' (passwords on the command
4834 line, '-stdin' option, '-in ...' option) and thus should not
4838 *) Remove all references to RSAref, since there's no more need for it.
4841 *) Make DSO load along a path given through an environment variable
4842 (SHLIB_PATH) with shl_load().
4845 *) Constify the ENGINE code as a result of BIGNUM constification.
4846 Also constify the RSA code and most things related to it. In a
4847 few places, most notable in the depth of the ASN.1 code, ugly
4848 casts back to non-const were required (to be solved at a later
4852 *) Make it so the openssl application has all engines loaded by default.
4855 *) Constify the BIGNUM routines a little more.
4858 *) Add the following functions:
4860 ENGINE_load_cswift()
4862 ENGINE_load_atalla()
4864 ENGINE_load_builtin_engines()
4866 That way, an application can itself choose if external engines that
4867 are built-in in OpenSSL shall ever be used or not. The benefit is
4868 that applications won't have to be linked with libdl or other dso
4869 libraries unless it's really needed.
4871 Changed 'openssl engine' to load all engines on demand.
4872 Changed the engine header files to avoid the duplication of some
4873 declarations (they differed!).
4876 *) 'openssl engine' can now list capabilities.
4879 *) Better error reporting in 'openssl engine'.
4882 *) Never call load_dh_param(NULL) in s_server.
4885 *) Add engine application. It can currently list engines by name and
4886 identity, and test if they are actually available.
4889 *) Improve RPM specification file by forcing symbolic linking and making
4890 sure the installed documentation is also owned by root.root.
4891 [Damien Miller <djm@mindrot.org>]
4893 *) Give the OpenSSL applications more possibilities to make use of
4894 keys (public as well as private) handled by engines.
4897 *) Add OCSP code that comes from CertCo.
4900 *) Add VMS support for the Rijndael code.
4903 *) Added untested support for Nuron crypto accelerator.
4906 *) Add support for external cryptographic devices. This code was
4907 previously distributed separately as the "engine" branch.
4908 [Geoff Thorpe, Richard Levitte]
4910 *) Rework the filename-translation in the DSO code. It is now possible to
4911 have far greater control over how a "name" is turned into a filename
4912 depending on the operating environment and any oddities about the
4913 different shared library filenames on each system.
4916 *) Support threads on FreeBSD-elf in Configure.
4919 *) Fix for SHA1 assembly problem with MASM: it produces
4920 warnings about corrupt line number information when assembling
4921 with debugging information. This is caused by the overlapping
4923 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4926 NCONF_get_number() has no error checking at all. As a replacement,
4927 NCONF_get_number_e() is defined (_e for "error checking") and is
4928 promoted strongly. The old NCONF_get_number is kept around for
4929 binary backward compatibility.
4930 Make it possible for methods to load from something other than a BIO,
4931 by providing a function pointer that is given a name instead of a BIO.
4932 For example, this could be used to load configuration data from an
4936 *) Fix for non blocking accept BIOs. Added new I/O special reason
4937 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4938 with non blocking I/O was not possible because no retry code was
4939 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4943 *) Added the beginnings of Rijndael support.
4946 *) Fix for bug in DirectoryString mask setting. Add support for
4947 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4948 to allow certificate printing to more controllable, additional
4949 'certopt' option to 'x509' to allow new printing options to be
4953 *) Clean old EAY MD5 hack from e_os.h.
4956 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4958 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4959 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4960 [Joe Orton, Steve Henson]
4962 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4964 *) Fix additional bug revealed by the NISCC test suite:
4966 Stop bug triggering large recursion when presented with
4967 certain ASN.1 tags (CVE-2003-0851)
4970 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4972 *) Fix various bugs revealed by running the NISCC test suite:
4974 Stop out of bounds reads in the ASN1 code when presented with
4975 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4977 If verify callback ignores invalid public key errors don't try to check
4978 certificate signature with the NULL public key.
4982 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4983 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4987 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4988 extra data after the compression methods not only for TLS 1.0
4989 but also for SSL 3.0 (as required by the specification).
4990 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4992 *) Change X509_certificate_type() to mark the key as exported/exportable
4993 when it's 512 *bits* long, not 512 bytes.
4996 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4998 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4999 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5000 a protocol version number mismatch like a decryption error
5001 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5004 *) Turn on RSA blinding by default in the default implementation
5005 to avoid a timing attack. Applications that don't want it can call
5006 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5007 They would be ill-advised to do so in most cases.
5008 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5010 *) Change RSA blinding code so that it works when the PRNG is not
5011 seeded (in this case, the secret RSA exponent is abused as
5012 an unpredictable seed -- if it is not unpredictable, there
5013 is no point in blinding anyway). Make RSA blinding thread-safe
5014 by remembering the creator's thread ID in rsa->blinding and
5015 having all other threads use local one-time blinding factors
5016 (this requires more computation than sharing rsa->blinding, but
5017 avoids excessive locking; and if an RSA object is not shared
5018 between threads, blinding will still be very fast).
5021 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5023 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5024 via timing by performing a MAC computation even if incorrrect
5025 block cipher padding has been found. This is a countermeasure
5026 against active attacks where the attacker has to distinguish
5027 between bad padding and a MAC verification error. (CVE-2003-0078)
5029 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5030 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5031 Martin Vuagnoux (EPFL, Ilion)]
5033 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5035 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5036 memory from it's contents. This is done with a counter that will
5037 place alternating values in each byte. This can be used to solve
5038 two issues: 1) the removal of calls to memset() by highly optimizing
5039 compilers, and 2) cleansing with other values than 0, since those can
5040 be read through on certain media, for example a swap space on disk.
5043 *) Bugfix: client side session caching did not work with external caching,
5044 because the session->cipher setting was not restored when reloading
5045 from the external cache. This problem was masked, when
5046 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5047 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5050 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5051 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5052 [Zeev Lieber <zeev-l@yahoo.com>]
5054 *) Undo an undocumented change introduced in 0.9.6e which caused
5055 repeated calls to OpenSSL_add_all_ciphers() and
5056 OpenSSL_add_all_digests() to be ignored, even after calling
5060 *) Change the default configuration reader to deal with last line not
5061 being properly terminated.
5064 *) Change X509_NAME_cmp() so it applies the special rules on handling
5065 DN values that are of type PrintableString, as well as RDNs of type
5066 emailAddress where the value has the type ia5String.
5067 [stefank@valicert.com via Richard Levitte]
5069 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5070 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5071 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5072 the bitwise-OR of the two for use by the majority of applications
5073 wanting this behaviour, and update the docs. The documented
5074 behaviour and actual behaviour were inconsistent and had been
5075 changing anyway, so this is more a bug-fix than a behavioural
5077 [Geoff Thorpe, diagnosed by Nadav Har'El]
5079 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5080 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5083 *) Fix initialization code race conditions in
5084 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5085 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5086 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5087 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5088 ssl2_get_cipher_by_char(),
5089 ssl3_get_cipher_by_char().
5090 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5092 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5093 the cached sessions are flushed, as the remove_cb() might use ex_data
5094 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5095 (see [openssl.org #212]).
5096 [Geoff Thorpe, Lutz Jaenicke]
5098 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5099 length, instead of the encoding length to d2i_ASN1_OBJECT.
5102 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5104 *) [In 0.9.6g-engine release:]
5105 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5106 [Lynn Gazis <lgazis@rainbow.com>]
5108 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5110 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5111 and get fix the header length calculation.
5112 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5113 Alon Kantor <alonk@checkpoint.com> (and others),
5116 *) Use proper error handling instead of 'assertions' in buffer
5117 overflow checks added in 0.9.6e. This prevents DoS (the
5118 assertions could call abort()).
5119 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5121 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5123 *) Add various sanity checks to asn1_get_length() to reject
5124 the ASN1 length bytes if they exceed sizeof(long), will appear
5125 negative or the content length exceeds the length of the
5127 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5129 *) Fix cipher selection routines: ciphers without encryption had no flags
5130 for the cipher strength set and where therefore not handled correctly
5131 by the selection routines (PR #130).
5134 *) Fix EVP_dsa_sha macro.
5138 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5139 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5140 that was added in OpenSSL 0.9.6d.
5142 As the countermeasure turned out to be incompatible with some
5143 broken SSL implementations, the new option is part of SSL_OP_ALL.
5144 SSL_OP_ALL is usually employed when compatibility with weird SSL
5145 implementations is desired (e.g. '-bugs' option to 's_client' and
5146 's_server'), so the new option is automatically set in many
5150 *) Changes in security patch:
5152 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5153 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5154 Air Force Materiel Command, USAF, under agreement number
5157 *) Add various sanity checks to asn1_get_length() to reject
5158 the ASN1 length bytes if they exceed sizeof(long), will appear
5159 negative or the content length exceeds the length of the
5160 supplied buffer. (CVE-2002-0659)
5161 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5163 *) Assertions for various potential buffer overflows, not known to
5165 [Ben Laurie (CHATS)]
5167 *) Various temporary buffers to hold ASCII versions of integers were
5168 too small for 64 bit platforms. (CVE-2002-0655)
5169 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5171 *) Remote buffer overflow in SSL3 protocol - an attacker could
5172 supply an oversized session ID to a client. (CVE-2002-0656)
5173 [Ben Laurie (CHATS)]
5175 *) Remote buffer overflow in SSL2 protocol - an attacker could
5176 supply an oversized client master key. (CVE-2002-0656)
5177 [Ben Laurie (CHATS)]
5179 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5181 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5182 encoded as NULL) with id-dsa-with-sha1.
5183 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5185 *) Check various X509_...() return values in apps/req.c.
5186 [Nils Larsch <nla@trustcenter.de>]
5188 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5189 an end-of-file condition would erronously be flagged, when the CRLF
5190 was just at the end of a processed block. The bug was discovered when
5191 processing data through a buffering memory BIO handing the data to a
5192 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5193 <ptsekov@syntrex.com> and Nedelcho Stanev.
5196 *) Implement a countermeasure against a vulnerability recently found
5197 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5198 before application data chunks to avoid the use of known IVs
5199 with data potentially chosen by the attacker.
5202 *) Fix length checks in ssl3_get_client_hello().
5205 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5206 to prevent ssl3_read_internal() from incorrectly assuming that
5207 ssl3_read_bytes() found application data while handshake
5208 processing was enabled when in fact s->s3->in_read_app_data was
5209 merely automatically cleared during the initial handshake.
5210 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5212 *) Fix object definitions for Private and Enterprise: they were not
5213 recognized in their shortname (=lowercase) representation. Extend
5214 obj_dat.pl to issue an error when using undefined keywords instead
5215 of silently ignoring the problem (Svenning Sorensen
5216 <sss@sss.dnsalias.net>).
5219 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5220 generators, i.e. generators other than 2 and 5. (Previously, the
5221 code did not properly initialise the 'add' and 'rem' values to
5222 BN_generate_prime().)
5224 In the new general case, we do not insist that 'generator' is
5225 actually a primitive root: This requirement is rather pointless;
5226 a generator of the order-q subgroup is just as good, if not
5230 *) Map new X509 verification errors to alerts. Discovered and submitted by
5231 Tom Wu <tom@arcot.com>.
5234 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5235 returning non-zero before the data has been completely received
5236 when using non-blocking I/O.
5237 [Bodo Moeller; problem pointed out by John Hughes]
5239 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5240 [Ben Laurie, Lutz Jaenicke]
5242 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5243 Yoram Zahavi <YoramZ@gilian.com>).
5246 *) Add information about CygWin 1.3 and on, and preserve proper
5247 configuration for the versions before that.
5248 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5250 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5251 check whether we deal with a copy of a session and do not delete from
5252 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5253 <izhar@checkpoint.com>.
5256 *) Do not store session data into the internal session cache, if it
5257 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5258 flag is set). Proposed by Aslam <aslam@funk.com>.
5261 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5265 *) [In 0.9.6d-engine release:]
5266 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5267 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5269 *) Add the configuration target linux-s390x.
5270 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5272 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5273 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5274 variable as an indication that a ClientHello message has been
5275 received. As the flag value will be lost between multiple
5276 invocations of ssl3_accept when using non-blocking I/O, the
5277 function may not be aware that a handshake has actually taken
5278 place, thus preventing a new session from being added to the
5281 To avoid this problem, we now set s->new_session to 2 instead of
5282 using a local variable.
5283 [Lutz Jaenicke, Bodo Moeller]
5285 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5286 if the SSL_R_LENGTH_MISMATCH error is detected.
5287 [Geoff Thorpe, Bodo Moeller]
5289 *) New 'shared_ldflag' column in Configure platform table.
5292 *) Fix EVP_CIPHER_mode macro.
5293 ["Dan S. Camper" <dan@bti.net>]
5295 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5296 type, we must throw them away by setting rr->length to 0.
5297 [D P Chang <dpc@qualys.com>]
5299 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5301 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5302 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5303 worked incorrectly for those cases where range = 10..._2 and
5304 3*range is two bits longer than range.)
5307 *) Only add signing time to PKCS7 structures if it is not already
5311 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5312 OBJ_ld_ce should be OBJ_id_ce.
5313 Also some ip-pda OIDs in crypto/objects/objects.txt were
5314 incorrect (cf. RFC 3039).
5315 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5317 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5318 returns early because it has nothing to do.
5319 [Andy Schneider <andy.schneider@bjss.co.uk>]
5321 *) [In 0.9.6c-engine release:]
5322 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5323 [Andy Schneider <andy.schneider@bjss.co.uk>]
5325 *) [In 0.9.6c-engine release:]
5326 Add support for Cryptographic Appliance's keyserver technology.
5327 (Use engine 'keyclient')
5328 [Cryptographic Appliances and Geoff Thorpe]
5330 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5331 is called via tools/c89.sh because arguments have to be
5332 rearranged (all '-L' options must appear before the first object
5334 [Richard Shapiro <rshapiro@abinitio.com>]
5336 *) [In 0.9.6c-engine release:]
5337 Add support for Broadcom crypto accelerator cards, backported
5339 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5341 *) [In 0.9.6c-engine release:]
5342 Add support for SureWare crypto accelerator cards from
5343 Baltimore Technologies. (Use engine 'sureware')
5344 [Baltimore Technologies and Mark Cox]
5346 *) [In 0.9.6c-engine release:]
5347 Add support for crypto accelerator cards from Accelerated
5348 Encryption Processing, www.aep.ie. (Use engine 'aep')
5349 [AEP Inc. and Mark Cox]
5351 *) Add a configuration entry for gcc on UnixWare.
5352 [Gary Benson <gbenson@redhat.com>]
5354 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5355 messages are stored in a single piece (fixed-length part and
5356 variable-length part combined) and fix various bugs found on the way.
5359 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5360 instead. BIO_gethostbyname() does not know what timeouts are
5361 appropriate, so entries would stay in cache even when they have
5363 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5365 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5366 faced with a pathologically small ClientHello fragment that does
5367 not contain client_version: Instead of aborting with an error,
5368 simply choose the highest available protocol version (i.e.,
5369 TLS 1.0 unless it is disabled). In practice, ClientHello
5370 messages are never sent like this, but this change gives us
5371 strictly correct behaviour at least for TLS.
5374 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5375 never resets s->method to s->ctx->method when called from within
5376 one of the SSL handshake functions.
5377 [Bodo Moeller; problem pointed out by Niko Baric]
5379 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5380 (sent using the client's version number) if client_version is
5381 smaller than the protocol version in use. Also change
5382 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5383 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5384 the client will at least see that alert.
5387 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5391 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5392 client receives HelloRequest while in a handshake.
5393 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5395 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5396 should end in 'break', not 'goto end' which circuments various
5397 cleanups done in state SSL_ST_OK. But session related stuff
5398 must be disabled for SSL_ST_OK in the case that we just sent a
5401 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5402 before just sending a HelloRequest.
5403 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5405 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5406 reveal whether illegal block cipher padding was found or a MAC
5407 verification error occured. (Neither SSLerr() codes nor alerts
5408 are directly visible to potential attackers, but the information
5409 may leak via logfiles.)
5411 Similar changes are not required for the SSL 2.0 implementation
5412 because the number of padding bytes is sent in clear for SSL 2.0,
5413 and the extra bytes are just ignored. However ssl/s2_pkt.c
5414 failed to verify that the purported number of padding bytes is in
5418 *) Add OpenUNIX-8 support including shared libraries
5419 (Boyd Lynn Gerber <gerberb@zenez.com>).
5422 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5423 'wristwatch attack' using huge encoding parameters (cf.
5424 James H. Manger's CRYPTO 2001 paper). Note that the
5425 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5426 encoding parameters and hence was not vulnerable.
5429 *) BN_sqr() bug fix.
5430 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5432 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5433 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5434 followed by modular reduction.
5435 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5437 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5438 equivalent based on BN_pseudo_rand() instead of BN_rand().
5441 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5442 This function was broken, as the check for a new client hello message
5443 to handle SGC did not allow these large messages.
5444 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5447 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5450 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5451 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5454 *) Rework the configuration and shared library support for Tru64 Unix.
5455 The configuration part makes use of modern compiler features and
5456 still retains old compiler behavior for those that run older versions
5457 of the OS. The shared library support part includes a variant that
5458 uses the RPATH feature, and is available through the special
5459 configuration target "alpha-cc-rpath", which will never be selected
5461 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5463 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5464 with the same message size as in ssl3_get_certificate_request().
5465 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5466 messages might inadvertently be reject as too long.
5467 [Petr Lampa <lampa@fee.vutbr.cz>]
5469 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5472 *) Modified SSL library such that the verify_callback that has been set
5473 specificly for an SSL object with SSL_set_verify() is actually being
5474 used. Before the change, a verify_callback set with this function was
5475 ignored and the verify_callback() set in the SSL_CTX at the time of
5476 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5477 to allow the necessary settings.
5480 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5481 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5482 done automatically (in contradiction to the requirements of the C
5483 standard). This made problems when used from OpenSSH.
5486 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5487 dh->length and always used
5489 BN_rand_range(priv_key, dh->p).
5491 BN_rand_range() is not necessary for Diffie-Hellman, and this
5492 specific range makes Diffie-Hellman unnecessarily inefficient if
5493 dh->length (recommended exponent length) is much smaller than the
5494 length of dh->p. We could use BN_rand_range() if the order of
5495 the subgroup was stored in the DH structure, but we only have
5500 BN_rand(priv_key, l, ...)
5502 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5508 RSA_eay_public_encrypt
5509 RSA_eay_private_decrypt
5510 RSA_eay_private_encrypt (signing)
5511 RSA_eay_public_decrypt (signature verification)
5513 (default implementations for RSA_public_encrypt,
5514 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5515 always reject numbers >= n.
5518 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5519 to synchronize access to 'locking_thread'. This is necessary on
5520 systems where access to 'locking_thread' (an 'unsigned long'
5521 variable) is not atomic.
5524 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5525 *before* setting the 'crypto_lock_rand' flag. The previous code had
5526 a race condition if 0 is a valid thread ID.
5527 [Travis Vitek <vitek@roguewave.com>]
5529 *) Add support for shared libraries under Irix.
5530 [Albert Chin-A-Young <china@thewrittenword.com>]
5532 *) Add configuration option to build on Linux on both big-endian and
5534 [Ralf Baechle <ralf@uni-koblenz.de>]
5536 *) Add the possibility to create shared libraries on HP-UX.
5539 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5541 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5542 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5543 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5544 PRNG state recovery was possible based on the output of
5545 one PRNG request appropriately sized to gain knowledge on
5546 'md' followed by enough consecutive 1-byte PRNG requests
5547 to traverse all of 'state'.
5549 1. When updating 'md_local' (the current thread's copy of 'md')
5550 during PRNG output generation, hash all of the previous
5551 'md_local' value, not just the half used for PRNG output.
5553 2. Make the number of bytes from 'state' included into the hash
5554 independent from the number of PRNG bytes requested.
5556 The first measure alone would be sufficient to avoid
5557 Markku-Juhani's attack. (Actually it had never occurred
5558 to me that the half of 'md_local' used for chaining was the
5559 half from which PRNG output bytes were taken -- I had always
5560 assumed that the secret half would be used.) The second
5561 measure makes sure that additional data from 'state' is never
5562 mixed into 'md_local' in small portions; this heuristically
5563 further strengthens the PRNG.
5566 *) Fix crypto/bn/asm/mips3.s.
5569 *) When only the key is given to "enc", the IV is undefined. Print out
5570 an error message in this case.
5573 *) Handle special case when X509_NAME is empty in X509 printing routines.
5576 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5577 positive and less than q.
5580 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5581 used: it isn't thread safe and the add_lock_callback should handle
5583 [Paul Rose <Paul.Rose@bridge.com>]
5585 *) Verify that incoming data obeys the block size in
5586 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5590 [Ulf Möller, Bodo Möller]
5592 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5593 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5594 when fixing the server behaviour for backwards-compatible 'client
5595 hello' messages. (Note that the attack is impractical against
5596 SSL 3.0 and TLS 1.0 anyway because length and version checking
5597 means that the probability of guessing a valid ciphertext is
5598 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5601 Before 0.9.5, the countermeasure (hide the error by generating a
5602 random 'decryption result') did not work properly because
5603 ERR_clear_error() was missing, meaning that SSL_get_error() would
5604 detect the supposedly ignored error.
5606 Both problems are now fixed.
5609 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5610 (previously it was 1024).
5613 *) Fix for compatibility mode trust settings: ignore trust settings
5614 unless some valid trust or reject settings are present.
5617 *) Fix for blowfish EVP: its a variable length cipher.
5620 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5621 parameters in DSA public key structures and return an error in the
5622 DSA routines if parameters are absent.
5625 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5626 in the current directory if neither $RANDFILE nor $HOME was set.
5627 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5628 caused some confusion to Windows users who haven't defined $HOME.
5629 Thus RAND_file_name() is changed again: e_os.h can define a
5630 DEFAULT_HOME, which will be used if $HOME is not set.
5631 For Windows, we use "C:"; on other platforms, we still require
5632 environment variables.
5634 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5635 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5636 having multiple threads call RAND_poll() concurrently.
5639 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5640 combination of a flag and a thread ID variable.
5641 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5642 flag), *other* threads can enter ssleay_add_bytes without obeying
5643 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5644 that they do not hold after the first thread unsets add_do_not_lock).
5647 *) Change bctest again: '-x' expressions are not available in all
5651 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5653 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5654 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5656 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5657 the default extension for executables, if any. Also, make the perl
5658 scripts that use symlink() to test if it really exists and use "cp"
5659 if it doesn't. All this made OpenSSL compilable and installable in
5663 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5664 If SEQUENCE is length is indefinite just set c->slen to the total
5665 amount of data available.
5666 [Steve Henson, reported by shige@FreeBSD.org]
5667 [This change does not apply to 0.9.7.]
5669 *) Change bctest to avoid here-documents inside command substitution
5670 (workaround for FreeBSD /bin/sh bug).
5671 For compatibility with Ultrix, avoid shell functions (introduced
5672 in the bctest version that searches along $PATH).
5675 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5676 with des_encrypt() defined on some operating systems, like Solaris
5680 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5681 On the Importance of Eliminating Errors in Cryptographic
5682 Computations, J. Cryptology 14 (2001) 2, 101-119,
5683 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5686 *) MIPS assembler BIGNUM division bug fix.
5689 *) Disabled incorrect Alpha assembler code.
5692 *) Fix PKCS#7 decode routines so they correctly update the length
5693 after reading an EOC for the EXPLICIT tag.
5695 [This change does not apply to 0.9.7.]
5697 *) Fix bug in PKCS#12 key generation routines. This was triggered
5698 if a 3DES key was generated with a 0 initial byte. Include
5699 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5700 (but broken) behaviour.
5703 *) Enhance bctest to search for a working bc along $PATH and print
5705 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5707 *) Fix memory leaks in err.c: free err_data string if necessary;
5708 don't write to the wrong index in ERR_set_error_data.
5711 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5715 *) Replace rdtsc with _emit statements for VC++ version 5.
5716 [Jeremy Cooper <jeremy@baymoo.org>]
5718 *) Make it possible to reuse SSLv2 sessions.
5721 *) In copy_email() check for >= 0 as a return value for
5722 X509_NAME_get_index_by_NID() since 0 is a valid index.
5723 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5725 *) Avoid coredump with unsupported or invalid public keys by checking if
5726 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5727 PKCS7_verify() fails with non detached data.
5730 *) Don't use getenv in library functions when run as setuid/setgid.
5731 New function OPENSSL_issetugid().
5734 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5735 due to incorrect handling of multi-threading:
5737 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5739 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5741 3. Count how many times MemCheck_off() has been called so that
5742 nested use can be treated correctly. This also avoids
5743 inband-signalling in the previous code (which relied on the
5744 assumption that thread ID 0 is impossible).
5747 *) Add "-rand" option also to s_client and s_server.
5750 *) Fix CPU detection on Irix 6.x.
5751 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5752 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5754 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5757 [This change does not apply to 0.9.7.]
5759 *) Use the cached encoding of an X509_NAME structure rather than
5760 copying it. This is apparently the reason for the libsafe "errors"
5761 but the code is actually correct.
5764 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5765 Bleichenbacher's DSA attack.
5766 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5767 to be set and top=0 forces the highest bit to be set; top=-1 is new
5768 and leaves the highest bit random.
5769 [Ulf Moeller, Bodo Moeller]
5771 *) In the NCONF_...-based implementations for CONF_... queries
5772 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5773 a temporary CONF structure with the data component set to NULL
5774 (which gives segmentation faults in lh_retrieve).
5775 Instead, use NULL for the CONF pointer in CONF_get_string and
5776 CONF_get_number (which may use environment variables) and directly
5777 return NULL from CONF_get_section.
5780 *) Fix potential buffer overrun for EBCDIC.
5783 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5784 keyUsage if basicConstraints absent for a CA.
5787 *) Make SMIME_write_PKCS7() write mail header values with a format that
5788 is more generally accepted (no spaces before the semicolon), since
5789 some programs can't parse those values properly otherwise. Also make
5790 sure BIO's that break lines after each write do not create invalid
5794 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5795 macros previously used would not encode an empty SEQUENCE OF
5796 and break the signature.
5798 [This change does not apply to 0.9.7.]
5800 *) Zero the premaster secret after deriving the master secret in
5804 *) Add some EVP_add_digest_alias registrations (as found in
5805 OpenSSL_add_all_digests()) to SSL_library_init()
5806 aka OpenSSL_add_ssl_algorithms(). This provides improved
5807 compatibility with peers using X.509 certificates
5808 with unconventional AlgorithmIdentifier OIDs.
5811 *) Fix for Irix with NO_ASM.
5812 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5814 *) ./config script fixes.
5815 [Ulf Moeller, Richard Levitte]
5817 *) Fix 'openssl passwd -1'.
5820 *) Change PKCS12_key_gen_asc() so it can cope with non null
5821 terminated strings whose length is passed in the passlen
5822 parameter, for example from PEM callbacks. This was done
5823 by adding an extra length parameter to asc2uni().
5824 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5826 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5827 call failed, free the DSA structure.
5830 *) Fix to uni2asc() to cope with zero length Unicode strings.
5831 These are present in some PKCS#12 files.
5834 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5835 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5836 when writing a 32767 byte record.
5837 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5839 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5840 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5842 (RSA objects have a reference count access to which is protected
5843 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5844 so they are meant to be shared between threads.)
5845 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5846 "Reddie, Steven" <Steven.Reddie@ca.com>]
5848 *) Fix a deadlock in CRYPTO_mem_leaks().
5851 *) Use better test patterns in bntest.
5854 *) rand_win.c fix for Borland C.
5857 *) BN_rshift bugfix for n == 0.
5860 *) Add a 'bctest' script that checks for some known 'bc' bugs
5861 so that 'make test' does not abort just because 'bc' is broken.
5864 *) Store verify_result within SSL_SESSION also for client side to
5865 avoid potential security hole. (Re-used sessions on the client side
5866 always resulted in verify_result==X509_V_OK, not using the original
5867 result of the server certificate verification.)
5870 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5871 SSL3_RT_APPLICATION_DATA, return 0.
5872 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5876 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5877 releases, have been re-implemented by renaming the previous
5878 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5879 and ssl3_read_internal, respectively, and adding 'peek' parameters
5880 to them. The new ssl[23]_{read,peek} functions are calls to
5881 ssl[23]_read_internal with the 'peek' flag set appropriately.
5882 A 'peek' parameter has also been added to ssl3_read_bytes, which
5883 does the actual work for ssl3_read_internal.
5886 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5887 the method-specific "init()" handler. Also clean up ex_data after
5888 calling the method-specific "finish()" handler. Previously, this was
5889 happening the other way round.
5892 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5893 The previous value, 12, was not always sufficient for BN_mod_exp().
5896 *) Make sure that shared libraries get the internal name engine with
5897 the full version number and not just 0. This should mark the
5898 shared libraries as not backward compatible. Of course, this should
5899 be changed again when we can guarantee backward binary compatibility.
5902 *) Fix typo in get_cert_by_subject() in by_dir.c
5903 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5905 *) Rework the system to generate shared libraries:
5907 - Make note of the expected extension for the shared libraries and
5908 if there is a need for symbolic links from for example libcrypto.so.0
5909 to libcrypto.so.0.9.7. There is extended info in Configure for
5912 - Make as few rebuilds of the shared libraries as possible.
5914 - Still avoid linking the OpenSSL programs with the shared libraries.
5916 - When installing, install the shared libraries separately from the
5920 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5922 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5923 and not in SSL_clear because the latter is also used by the
5924 accept/connect functions; previously, the settings made by
5925 SSL_set_read_ahead would be lost during the handshake.
5926 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5928 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5929 Previously, it would create entries for disableed algorithms no
5933 *) Added several new manual pages for SSL_* function.
5936 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5938 *) In ssl23_get_client_hello, generate an error message when faced
5939 with an initial SSL 3.0/TLS record that is too small to contain the
5940 first two bytes of the ClientHello message, i.e. client_version.
5941 (Note that this is a pathologic case that probably has never happened
5942 in real life.) The previous approach was to use the version number
5943 from the record header as a substitute; but our protocol choice
5944 should not depend on that one because it is not authenticated
5945 by the Finished messages.
5948 *) More robust randomness gathering functions for Windows.
5949 [Jeffrey Altman <jaltman@columbia.edu>]
5951 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5952 not set then we don't setup the error code for issuer check errors
5953 to avoid possibly overwriting other errors which the callback does
5954 handle. If an application does set the flag then we assume it knows
5955 what it is doing and can handle the new informational codes
5959 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5960 a general "ANY" type, as such it should be able to decode anything
5961 including tagged types. However it didn't check the class so it would
5962 wrongly interpret tagged types in the same way as their universal
5963 counterpart and unknown types were just rejected. Changed so that the
5964 tagged and unknown types are handled in the same way as a SEQUENCE:
5965 that is the encoding is stored intact. There is also a new type
5966 "V_ASN1_OTHER" which is used when the class is not universal, in this
5967 case we have no idea what the actual type is so we just lump them all
5971 *) On VMS, stdout may very well lead to a file that is written to
5972 in a record-oriented fashion. That means that every write() will
5973 write a separate record, which will be read separately by the
5974 programs trying to read from it. This can be very confusing.
5976 The solution is to put a BIO filter in the way that will buffer
5977 text until a linefeed is reached, and then write everything a
5978 line at a time, so every record written will be an actual line,
5979 not chunks of lines and not (usually doesn't happen, but I've
5980 seen it once) several lines in one record. BIO_f_linebuffer() is
5983 Currently, it's a VMS-only method, because that's where it has
5984 been tested well enough.
5987 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5988 it can return incorrect results.
5989 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5990 but it was in 0.9.6-beta[12].)
5993 *) Disable the check for content being present when verifying detached
5994 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5995 include zero length content when signing messages.
5998 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5999 BIO_ctrl (for BIO pairs).
6002 *) Add DSO method for VMS.
6005 *) Bug fix: Montgomery multiplication could produce results with the
6009 *) Add RPM specification openssl.spec and modify it to build three
6010 packages. The default package contains applications, application
6011 documentation and run-time libraries. The devel package contains
6012 include files, static libraries and function documentation. The
6013 doc package contains the contents of the doc directory. The original
6014 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6017 *) Add a large number of documentation files for many SSL routines.
6018 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6020 *) Add a configuration entry for Sony News 4.
6021 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6023 *) Don't set the two most significant bits to one when generating a
6024 random number < q in the DSA library.
6027 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6028 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6029 the underlying transport is blocking) if a handshake took place.
6030 (The default behaviour is needed by applications such as s_client
6031 and s_server that use select() to determine when to use SSL_read;
6032 but for applications that know in advance when to expect data, it
6033 just makes things more complicated.)
6036 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6040 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6041 work better on such systems.
6042 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6044 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6045 Update PKCS12_parse() so it copies the friendlyName and the
6046 keyid to the certificates aux info.
6049 *) Fix bug in PKCS7_verify() which caused an infinite loop
6050 if there was more than one signature.
6051 [Sven Uszpelkat <su@celocom.de>]
6053 *) Major change in util/mkdef.pl to include extra information
6054 about each symbol, as well as presentig variables as well
6055 as functions. This change means that there's n more need
6056 to rebuild the .num files when some algorithms are excluded.
6059 *) Allow the verify time to be set by an application,
6060 rather than always using the current time.
6063 *) Phase 2 verify code reorganisation. The certificate
6064 verify code now looks up an issuer certificate by a
6065 number of criteria: subject name, authority key id
6066 and key usage. It also verifies self signed certificates
6067 by the same criteria. The main comparison function is
6068 X509_check_issued() which performs these checks.
6070 Lot of changes were necessary in order to support this
6071 without completely rewriting the lookup code.
6073 Authority and subject key identifier are now cached.
6075 The LHASH 'certs' is X509_STORE has now been replaced
6076 by a STACK_OF(X509_OBJECT). This is mainly because an
6077 LHASH can't store or retrieve multiple objects with
6078 the same hash value.
6080 As a result various functions (which were all internal
6081 use only) have changed to handle the new X509_STORE
6082 structure. This will break anything that messed round
6083 with X509_STORE internally.
6085 The functions X509_STORE_add_cert() now checks for an
6086 exact match, rather than just subject name.
6088 The X509_STORE API doesn't directly support the retrieval
6089 of multiple certificates matching a given criteria, however
6090 this can be worked round by performing a lookup first
6091 (which will fill the cache with candidate certificates)
6092 and then examining the cache for matches. This is probably
6093 the best we can do without throwing out X509_LOOKUP
6094 entirely (maybe later...).
6096 The X509_VERIFY_CTX structure has been enhanced considerably.
6098 All certificate lookup operations now go via a get_issuer()
6099 callback. Although this currently uses an X509_STORE it
6100 can be replaced by custom lookups. This is a simple way
6101 to bypass the X509_STORE hackery necessary to make this
6102 work and makes it possible to use more efficient techniques
6103 in future. A very simple version which uses a simple
6104 STACK for its trusted certificate store is also provided
6105 using X509_STORE_CTX_trusted_stack().
6107 The verify_cb() and verify() callbacks now have equivalents
6108 in the X509_STORE_CTX structure.
6110 X509_STORE_CTX also has a 'flags' field which can be used
6111 to customise the verify behaviour.
6114 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6115 excludes S/MIME capabilities.
6118 *) When a certificate request is read in keep a copy of the
6119 original encoding of the signed data and use it when outputing
6120 again. Signatures then use the original encoding rather than
6121 a decoded, encoded version which may cause problems if the
6122 request is improperly encoded.
6125 *) For consistency with other BIO_puts implementations, call
6126 buffer_write(b, ...) directly in buffer_puts instead of calling
6129 In BIO_puts, increment b->num_write as in BIO_write.
6130 [Peter.Sylvester@EdelWeb.fr]
6132 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6133 BN_zero, we may not return a BIGNUM with an array consisting of
6137 *) Avoid calling abort() from within the library when problems are
6138 detected, except if preprocessor symbols have been defined
6139 (such as REF_CHECK, BN_DEBUG etc.).
6142 *) New openssl application 'rsautl'. This utility can be
6143 used for low level RSA operations. DER public key
6144 BIO/fp routines also added.
6147 *) New Configure entry and patches for compiling on QNX 4.
6148 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6150 *) A demo state-machine implementation was sponsored by
6151 Nuron (http://www.nuron.com/) and is now available in
6152 demos/state_machine.
6155 *) New options added to the 'dgst' utility for signature
6156 generation and verification.
6159 *) Unrecognized PKCS#7 content types are now handled via a
6160 catch all ASN1_TYPE structure. This allows unsupported
6161 types to be stored as a "blob" and an application can
6162 encode and decode it manually.
6165 *) Fix various signed/unsigned issues to make a_strex.c
6167 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6169 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6170 length if passed a buffer. ASN1_INTEGER_to_BN failed
6171 if passed a NULL BN and its argument was negative.
6172 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6174 *) Modification to PKCS#7 encoding routines to output definite
6175 length encoding. Since currently the whole structures are in
6176 memory there's not real point in using indefinite length
6177 constructed encoding. However if OpenSSL is compiled with
6178 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6181 *) Added BIO_vprintf() and BIO_vsnprintf().
6184 *) Added more prefixes to parse for in the the strings written
6185 through a logging bio, to cover all the levels that are available
6186 through syslog. The prefixes are now:
6188 PANIC, EMERG, EMR => LOG_EMERG
6189 ALERT, ALR => LOG_ALERT
6190 CRIT, CRI => LOG_CRIT
6191 ERROR, ERR => LOG_ERR
6192 WARNING, WARN, WAR => LOG_WARNING
6193 NOTICE, NOTE, NOT => LOG_NOTICE
6194 INFO, INF => LOG_INFO
6195 DEBUG, DBG => LOG_DEBUG
6197 and as before, if none of those prefixes are present at the
6198 beginning of the string, LOG_ERR is chosen.
6200 On Win32, the LOG_* levels are mapped according to this:
6202 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6203 LOG_WARNING => EVENTLOG_WARNING_TYPE
6204 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6208 *) Made it possible to reconfigure with just the configuration
6209 argument "reconf" or "reconfigure". The command line arguments
6210 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6211 and are retrieved from there when reconfiguring.
6215 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6217 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6220 *) The obj_dat.pl script was messing up the sorting of object
6221 names. The reason was that it compared the quoted version
6222 of strings as a result "OCSP" > "OCSP Signing" because
6223 " > SPACE. Changed script to store unquoted versions of
6224 names and add quotes on output. It was also omitting some
6225 names from the lookup table if they were given a default
6226 value (that is if SN is missing it is given the same
6227 value as LN and vice versa), these are now added on the
6228 grounds that if an object has a name we should be able to
6229 look it up. Finally added warning output when duplicate
6230 short or long names are found.
6233 *) Changes needed for Tandem NSK.
6234 [Scott Uroff <scott@xypro.com>]
6236 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6237 RSA_padding_check_SSLv23(), special padding was never detected
6238 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6239 version rollback attacks was not effective.
6241 In s23_clnt.c, don't use special rollback-attack detection padding
6242 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6243 client; similarly, in s23_srvr.c, don't do the rollback check if
6244 SSL 2.0 is the only protocol enabled in the server.
6247 *) Make it possible to get hexdumps of unprintable data with 'openssl
6248 asn1parse'. By implication, the functions ASN1_parse_dump() and
6249 BIO_dump_indent() are added.
6252 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6253 these print out strings and name structures based on various
6254 flags including RFC2253 support and proper handling of
6255 multibyte characters. Added options to the 'x509' utility
6256 to allow the various flags to be set.
6259 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6260 Also change the functions X509_cmp_current_time() and
6261 X509_gmtime_adj() work with an ASN1_TIME structure,
6262 this will enable certificates using GeneralizedTime in validity
6263 dates to be checked.
6266 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6267 negative public key encodings) on by default,
6268 NO_NEG_PUBKEY_BUG can be set to disable it.
6271 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6272 content octets. An i2c_ASN1_OBJECT is unnecessary because
6273 the encoding can be trivially obtained from the structure.
6276 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6277 not read locks (CRYPTO_r_[un]lock).
6280 *) A first attempt at creating official support for shared
6281 libraries through configuration. I've kept it so the
6282 default is static libraries only, and the OpenSSL programs
6283 are always statically linked for now, but there are
6284 preparations for dynamic linking in place.
6285 This has been tested on Linux and Tru64.
6288 *) Randomness polling function for Win9x, as described in:
6289 Peter Gutmann, Software Generation of Practically Strong
6293 *) Fix so PRNG is seeded in req if using an already existing
6297 *) New options to smime application. -inform and -outform
6298 allow alternative formats for the S/MIME message including
6299 PEM and DER. The -content option allows the content to be
6300 specified separately. This should allow things like Netscape
6301 form signing output easier to verify.
6304 *) Fix the ASN1 encoding of tags using the 'long form'.
6307 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6308 STRING types. These convert content octets to and from the
6309 underlying type. The actual tag and length octets are
6310 already assumed to have been read in and checked. These
6311 are needed because all other string types have virtually
6312 identical handling apart from the tag. By having versions
6313 of the ASN1 functions that just operate on content octets
6314 IMPLICIT tagging can be handled properly. It also allows
6315 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6316 and ASN1_INTEGER are identical apart from the tag.
6319 *) Change the handling of OID objects as follows:
6321 - New object identifiers are inserted in objects.txt, following
6322 the syntax given in objects.README.
6323 - objects.pl is used to process obj_mac.num and create a new
6325 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6328 This is currently kind of a hack, and the perl code in objects.pl
6329 isn't very elegant, but it works as I intended. The simplest way
6330 to check that it worked correctly is to look in obj_dat.h and
6331 check the array nid_objs and make sure the objects haven't moved
6332 around (this is important!). Additions are OK, as well as
6333 consistent name changes.
6336 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6339 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6340 The given file adds to whatever has already been seeded into the
6341 random pool through the RANDFILE configuration file option or
6342 environment variable, or the default random state file.
6345 *) mkstack.pl now sorts each macro group into lexical order.
6346 Previously the output order depended on the order the files
6347 appeared in the directory, resulting in needless rewriting
6351 *) Patches to make OpenSSL compile under Win32 again. Mostly
6352 work arounds for the VC++ problem that it treats func() as
6353 func(void). Also stripped out the parts of mkdef.pl that
6354 added extra typesafe functions: these no longer exist.
6357 *) Reorganisation of the stack code. The macros are now all
6358 collected in safestack.h . Each macro is defined in terms of
6359 a "stack macro" of the form SKM_<name>(type, a, b). The
6360 DEBUG_SAFESTACK is now handled in terms of function casts,
6361 this has the advantage of retaining type safety without the
6362 use of additional functions. If DEBUG_SAFESTACK is not defined
6363 then the non typesafe macros are used instead. Also modified the
6364 mkstack.pl script to handle the new form. Needs testing to see
6365 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6366 the default if no major problems. Similar behaviour for ASN1_SET_OF
6367 and PKCS12_STACK_OF.
6370 *) When some versions of IIS use the 'NET' form of private key the
6371 key derivation algorithm is different. Normally MD5(password) is
6372 used as a 128 bit RC4 key. In the modified case
6373 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6374 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6375 as the old Netscape_RSA functions except they have an additional
6376 'sgckey' parameter which uses the modified algorithm. Also added
6377 an -sgckey command line option to the rsa utility. Thanks to
6378 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6379 algorithm to openssl-dev.
6382 *) The evp_local.h macros were using 'c.##kname' which resulted in
6383 invalid expansion on some systems (SCO 5.0.5 for example).
6384 Corrected to 'c.kname'.
6385 [Phillip Porch <root@theporch.com>]
6387 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6388 a STACK of email addresses from a certificate or request, these look
6389 in the subject name and the subject alternative name extensions and
6390 omit any duplicate addresses.
6393 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6394 This makes DSA verification about 2 % faster.
6397 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6398 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6399 plus overhead for 1024 bit moduli).
6400 This makes exponentiations about 0.5 % faster for 1024 bit
6401 exponents (as measured by "openssl speed rsa2048").
6404 *) Rename memory handling macros to avoid conflicts with other
6406 Malloc => OPENSSL_malloc
6407 Malloc_locked => OPENSSL_malloc_locked
6408 Realloc => OPENSSL_realloc
6409 Free => OPENSSL_free
6412 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6413 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6416 *) CygWin32 support.
6417 [John Jarvie <jjarvie@newsguy.com>]
6419 *) The type-safe stack code has been rejigged. It is now only compiled
6420 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6421 by default all type-specific stack functions are "#define"d back to
6422 standard stack functions. This results in more streamlined output
6423 but retains the type-safety checking possibilities of the original
6427 *) The STACK code has been cleaned up, and certain type declarations
6428 that didn't make a lot of sense have been brought in line. This has
6429 also involved a cleanup of sorts in safestack.h to more correctly
6430 map type-safe stack functions onto their plain stack counterparts.
6431 This work has also resulted in a variety of "const"ifications of
6432 lots of the code, especially "_cmp" operations which should normally
6433 be prototyped with "const" parameters anyway.
6436 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6437 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6438 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6439 where all of 'md' is used each time the PRNG is used, but 'state'
6440 is used only indexed by a cyclic counter. As entropy may not be
6441 well distributed from the beginning, 'md' is important as a
6442 chaining variable. However, the output function chains only half
6443 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6444 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6445 in all of 'state' being rewritten, with the new values depending
6446 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6449 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6450 the handshake is continued after ssl_verify_cert_chain();
6451 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6452 can lead to 'unexplainable' connection aborts later.
6453 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6455 *) Major EVP API cipher revision.
6456 Add hooks for extra EVP features. This allows various cipher
6457 parameters to be set in the EVP interface. Support added for variable
6458 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6459 setting of RC2 and RC5 parameters.
6461 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6464 Remove lots of duplicated code from the EVP library. For example *every*
6465 cipher init() function handles the 'iv' in the same way according to the
6466 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6467 for CFB and OFB modes they zero ctx->num.
6469 New functionality allows removal of S/MIME code RC2 hack.
6471 Most of the routines have the same form and so can be declared in terms
6474 By shifting this to the top level EVP_CipherInit() it can be removed from
6475 all individual ciphers. If the cipher wants to handle IVs or keys
6476 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6479 Change lots of functions like EVP_EncryptUpdate() to now return a
6480 value: although software versions of the algorithms cannot fail
6481 any installed hardware versions can.
6484 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6485 this option is set, tolerate broken clients that send the negotiated
6486 protocol version number instead of the requested protocol version
6490 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6491 i.e. non-zero for export ciphersuites, zero otherwise.
6492 Previous versions had this flag inverted, inconsistent with
6493 rsa_tmp_cb (..._TMP_RSA_CB).
6494 [Bodo Moeller; problem reported by Amit Chopra]
6496 *) Add missing DSA library text string. Work around for some IIS
6497 key files with invalid SEQUENCE encoding.
6500 *) Add a document (doc/standards.txt) that list all kinds of standards
6501 and so on that are implemented in OpenSSL.
6504 *) Enhance c_rehash script. Old version would mishandle certificates
6505 with the same subject name hash and wouldn't handle CRLs at all.
6506 Added -fingerprint option to crl utility, to support new c_rehash
6510 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6513 *) Fix for SSL server purpose checking. Server checking was
6514 rejecting certificates which had extended key usage present
6515 but no ssl client purpose.
6516 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6518 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6519 is a little unclear about how a blank password is handled.
6520 Since the password in encoded as a BMPString with terminating
6521 double NULL a zero length password would end up as just the
6522 double NULL. However no password at all is different and is
6523 handled differently in the PKCS#12 key generation code. NS
6524 treats a blank password as zero length. MSIE treats it as no
6525 password on export: but it will try both on import. We now do
6526 the same: PKCS12_parse() tries zero length and no password if
6527 the password is set to "" or NULL (NULL is now a valid password:
6528 it wasn't before) as does the pkcs12 application.
6531 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6532 perror when PEM_read_bio_X509_REQ fails, the error message must
6533 be obtained from the error queue.
6536 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6537 it in ERR_remove_state if appropriate, and change ERR_get_state
6538 accordingly to avoid race conditions (this is necessary because
6539 thread_hash is no longer constant once set).
6542 *) Bugfix for linux-elf makefile.one.
6545 *) RSA_get_default_method() will now cause a default
6546 RSA_METHOD to be chosen if one doesn't exist already.
6547 Previously this was only set during a call to RSA_new()
6548 or RSA_new_method(NULL) meaning it was possible for
6549 RSA_get_default_method() to return NULL.
6552 *) Added native name translation to the existing DSO code
6553 that will convert (if the flag to do so is set) filenames
6554 that are sufficiently small and have no path information
6555 into a canonical native form. Eg. "blah" converted to
6556 "libblah.so" or "blah.dll" etc.
6559 *) New function ERR_error_string_n(e, buf, len) which is like
6560 ERR_error_string(e, buf), but writes at most 'len' bytes
6561 including the 0 terminator. For ERR_error_string_n, 'buf'
6563 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6565 *) CONF library reworked to become more general. A new CONF
6566 configuration file reader "class" is implemented as well as a
6567 new functions (NCONF_*, for "New CONF") to handle it. The now
6568 old CONF_* functions are still there, but are reimplemented to
6569 work in terms of the new functions. Also, a set of functions
6570 to handle the internal storage of the configuration data is
6571 provided to make it easier to write new configuration file
6572 reader "classes" (I can definitely see something reading a
6573 configuration file in XML format, for example), called _CONF_*,
6574 or "the configuration storage API"...
6576 The new configuration file reading functions are:
6578 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6579 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6581 NCONF_default, NCONF_WIN32
6583 NCONF_dump_fp, NCONF_dump_bio
6585 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6586 NCONF_new creates a new CONF object. This works in the same way
6587 as other interfaces in OpenSSL, like the BIO interface.
6588 NCONF_dump_* dump the internal storage of the configuration file,
6589 which is useful for debugging. All other functions take the same
6590 arguments as the old CONF_* functions wth the exception of the
6591 first that must be a `CONF *' instead of a `LHASH *'.
6593 To make it easer to use the new classes with the old CONF_* functions,
6594 the function CONF_set_default_method is provided.
6597 *) Add '-tls1' option to 'openssl ciphers', which was already
6598 mentioned in the documentation but had not been implemented.
6599 (This option is not yet really useful because even the additional
6600 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6603 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6604 OpenSSL-based applications) load shared libraries and bind to
6605 them in a portable way.
6606 [Geoff Thorpe, with contributions from Richard Levitte]
6608 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6610 *) Make sure _lrotl and _lrotr are only used with MSVC.
6612 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6613 (the default implementation of RAND_status).
6615 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6616 to '-clrext' (= clear extensions), as intended and documented.
6617 [Bodo Moeller; inconsistency pointed out by Michael Attili
6620 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6621 was larger than the MD block size.
6622 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6624 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6625 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6626 using the passed key: if the passed key was a private key the result
6627 of X509_print(), for example, would be to print out all the private key
6631 *) des_quad_cksum() byte order bug fix.
6632 [Ulf Möller, using the problem description in krb4-0.9.7, where
6633 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6635 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6637 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6639 *) For easily testing in shell scripts whether some command
6640 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6641 returns with exit code 0 iff no command of the given name is available.
6642 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6643 the output goes to stdout and nothing is printed to stderr.
6644 Additional arguments are always ignored.
6646 Since for each cipher there is a command of the same name,
6647 the 'no-cipher' compilation switches can be tested this way.
6649 ('openssl no-XXX' is not able to detect pseudo-commands such
6650 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6653 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6656 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6657 is set; it will be thrown away anyway because each handshake creates
6659 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6660 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6661 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6662 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6665 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6666 'Q' and 'R' lose their special meanings (quit/renegotiate).
6667 This is part of what -quiet does; unlike -quiet, -ign_eof
6668 does not suppress any output.
6671 *) Add compatibility options to the purpose and trust code. The
6672 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6673 accepts a certificate or CA, this was the previous behaviour,
6674 with all the associated security issues.
6676 X509_TRUST_COMPAT is the old trust behaviour: only and
6677 automatically trust self signed roots in certificate store. A
6678 new trust setting X509_TRUST_DEFAULT is used to specify that
6679 a purpose has no associated trust setting and it should instead
6680 use the value in the default purpose.
6683 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6684 and fix a memory leak.
6687 *) In util/mkerr.pl (which implements 'make errors'), preserve
6688 reason strings from the previous version of the .c file, as
6689 the default to have only downcase letters (and digits) in
6690 automatically generated reasons codes is not always appropriate.
6693 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6694 using strerror. Previously, ERR_reason_error_string() returned
6695 library names as reason strings for SYSerr; but SYSerr is a special
6696 case where small numbers are errno values, not library numbers.
6699 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6700 converts DSA parameters into DH parameters. (When creating parameters,
6701 DSA_generate_parameters is used.)
6704 *) Include 'length' (recommended exponent length) in C code generated
6705 by 'openssl dhparam -C'.
6708 *) The second argument to set_label in perlasm was already being used
6709 so couldn't be used as a "file scope" flag. Moved to third argument
6713 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6714 instead of RAND_bytes for encryption IVs and salts.
6717 *) Include RAND_status() into RAND_METHOD instead of implementing
6718 it only for md_rand.c Otherwise replacing the PRNG by calling
6719 RAND_set_rand_method would be impossible.
6722 *) Don't let DSA_generate_key() enter an infinite loop if the random
6723 number generation fails.
6726 *) New 'rand' application for creating pseudo-random output.
6729 *) Added configuration support for Linux/IA64
6730 [Rolf Haberrecker <rolf@suse.de>]
6732 *) Assembler module support for Mingw32.
6735 *) Shared library support for HPUX (in shlib/).
6736 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6738 *) Shared library support for Solaris gcc.
6739 [Lutz Behnke <behnke@trustcenter.de>]
6741 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6743 *) PKCS7_encrypt() was adding text MIME headers twice because they
6744 were added manually and by SMIME_crlf_copy().
6747 *) In bntest.c don't call BN_rand with zero bits argument.
6748 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6750 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6751 case was implemented. This caused BN_div_recp() to fail occasionally.
6754 *) Add an optional second argument to the set_label() in the perl
6755 assembly language builder. If this argument exists and is set
6756 to 1 it signals that the assembler should use a symbol whose
6757 scope is the entire file, not just the current function. This
6758 is needed with MASM which uses the format label:: for this scope.
6759 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6761 *) Change the ASN1 types so they are typedefs by default. Before
6762 almost all types were #define'd to ASN1_STRING which was causing
6763 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6767 *) Change names of new functions to the new get1/get0 naming
6768 convention: After 'get1', the caller owns a reference count
6769 and has to call ..._free; 'get0' returns a pointer to some
6770 data structure without incrementing reference counters.
6771 (Some of the existing 'get' functions increment a reference
6772 counter, some don't.)
6773 Similarly, 'set1' and 'add1' functions increase reference
6774 counters or duplicate objects.
6777 *) Allow for the possibility of temp RSA key generation failure:
6778 the code used to assume it always worked and crashed on failure.
6781 *) Fix potential buffer overrun problem in BIO_printf().
6782 [Ulf Möller, using public domain code by Patrick Powell; problem
6783 pointed out by David Sacerdote <das33@cornell.edu>]
6785 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6786 RAND_egd() and RAND_status(). In the command line application,
6787 the EGD socket can be specified like a seed file using RANDFILE
6791 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6792 Some CAs (e.g. Verisign) distribute certificates in this form.
6795 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6796 list to exclude them. This means that no special compilation option
6797 is needed to use anonymous DH: it just needs to be included in the
6801 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6802 EVP_MD_type. The old functionality is available in a new macro called
6803 EVP_MD_md(). Change code that uses it and update docs.
6806 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6807 where the 'void *' argument is replaced by a function pointer argument.
6808 Previously 'void *' was abused to point to functions, which works on
6809 many platforms, but is not correct. As these functions are usually
6810 called by macros defined in OpenSSL header files, most source code
6811 should work without changes.
6814 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6815 sections with information on -D... compiler switches used for
6816 compiling the library so that applications can see them. To enable
6817 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6818 must be defined. E.g.,
6819 #define OPENSSL_ALGORITHM_DEFINES
6820 #include <openssl/opensslconf.h>
6821 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6822 [Richard Levitte, Ulf and Bodo Möller]
6824 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6828 *) Change the 'other' type in certificate aux info to a STACK_OF
6829 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6830 the required ASN1 format: arbitrary types determined by an OID.
6833 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6834 argument to 'req'. This is not because the function is newer or
6835 better than others it just uses the work 'NEW' in the certificate
6836 request header lines. Some software needs this.
6839 *) Reorganise password command line arguments: now passwords can be
6840 obtained from various sources. Delete the PEM_cb function and make
6841 it the default behaviour: i.e. if the callback is NULL and the
6842 usrdata argument is not NULL interpret it as a null terminated pass
6843 phrase. If usrdata and the callback are NULL then the pass phrase
6844 is prompted for as usual.
6847 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6848 the support is automatically enabled. The resulting binaries will
6849 autodetect the card and use it if present.
6850 [Ben Laurie and Compaq Inc.]
6852 *) Work around for Netscape hang bug. This sends certificate request
6853 and server done in one record. Since this is perfectly legal in the
6854 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6855 the bugs/SSLv3 entry for more info.
6858 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6861 *) Add -rand argument to smime and pkcs12 applications and read/write
6865 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6868 *) Add command line password options to the remaining applications.
6871 *) Bug fix for BN_div_recp() for numerators with an even number of
6875 *) More tests in bntest.c, and changed test_bn output.
6878 *) ./config recognizes MacOS X now.
6881 *) Bug fix for BN_div() when the first words of num and divsor are
6882 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6885 *) Add support for various broken PKCS#8 formats, and command line
6886 options to produce them.
6889 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6890 get temporary BIGNUMs from a BN_CTX.
6893 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6897 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6898 include a #define from the old name to the new. The original intent
6899 was that statically linked binaries could for example just call
6900 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6901 link with digests. This never worked becayse SSLeay_add_all_digests()
6902 and SSLeay_add_all_ciphers() were in the same source file so calling
6903 one would link with the other. They are now in separate source files.
6906 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6909 *) Use a less unusual form of the Miller-Rabin primality test (it used
6910 a binary algorithm for exponentiation integrated into the Miller-Rabin
6911 loop, our standard modexp algorithms are faster).
6914 *) Support for the EBCDIC character set completed.
6915 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6917 *) Source code cleanups: use const where appropriate, eliminate casts,
6918 use void * instead of char * in lhash.
6921 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6922 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6923 this the server could overwrite ephemeral keys that the client
6927 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6928 using 50 iterations of the Rabin-Miller test.
6930 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6931 iterations of the Rabin-Miller test as required by the appendix
6932 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6933 As BN_is_prime_fasttest includes trial division, DSA parameter
6934 generation becomes much faster.
6936 This implies a change for the callback functions in DSA_is_prime
6937 and DSA_generate_parameters: The callback function is called once
6938 for each positive witness in the Rabin-Miller test, not just
6939 occasionally in the inner loop; and the parameters to the
6940 callback function now provide an iteration count for the outer
6941 loop rather than for the current invocation of the inner loop.
6942 DSA_generate_parameters additionally can call the callback
6943 function with an 'iteration count' of -1, meaning that a
6944 candidate has passed the trial division test (when q is generated
6945 from an application-provided seed, trial division is skipped).
6948 *) New function BN_is_prime_fasttest that optionally does trial
6949 division before starting the Rabin-Miller test and has
6950 an additional BN_CTX * argument (whereas BN_is_prime always
6951 has to allocate at least one BN_CTX).
6952 'callback(1, -1, cb_arg)' is called when a number has passed the
6953 trial division stage.
6956 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6960 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6963 *) New function BN_pseudo_rand().
6966 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6967 bignum version of BN_from_montgomery() with the working code from
6968 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6972 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6973 made it impossible to use the same SSL_SESSION data structure in
6974 SSL2 clients in multiple threads.
6977 *) The return value of RAND_load_file() no longer counts bytes obtained
6978 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6979 to seed the PRNG (previously an explicit byte count was required).
6980 [Ulf Möller, Bodo Möller]
6982 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6983 used (char *) instead of (void *) and had casts all over the place.
6986 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6989 *) Retain source code compatibility for BN_prime_checks macro:
6990 BN_is_prime(..., BN_prime_checks, ...) now uses
6991 BN_prime_checks_for_size to determine the appropriate number of
6992 Rabin-Miller iterations.
6995 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6996 DH_CHECK_P_NOT_SAFE_PRIME.
6997 (Check if this is true? OpenPGP calls them "strong".)
7000 *) Merge the functionality of "dh" and "gendh" programs into a new program
7001 "dhparam". The old programs are retained for now but will handle DH keys
7002 (instead of parameters) in future.
7005 *) Make the ciphers, s_server and s_client programs check the return values
7006 when a new cipher list is set.
7009 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7010 ciphers. Before when the 56bit ciphers were enabled the sorting was
7013 The syntax for the cipher sorting has been extended to support sorting by
7014 cipher-strength (using the strength_bits hard coded in the tables).
7015 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7017 Fix a bug in the cipher-command parser: when supplying a cipher command
7018 string with an "undefined" symbol (neither command nor alphanumeric
7019 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7020 an error is flagged.
7022 Due to the strength-sorting extension, the code of the
7023 ssl_create_cipher_list() function was completely rearranged. I hope that
7024 the readability was also increased :-)
7025 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7027 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7028 for the first serial number and places 2 in the serial number file. This
7029 avoids problems when the root CA is created with serial number zero and
7030 the first user certificate has the same issuer name and serial number
7034 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7035 the new code. Add documentation for this stuff.
7038 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7039 X509_*() to X509at_*() on the grounds that they don't handle X509
7040 structures and behave in an analagous way to the X509v3 functions:
7041 they shouldn't be called directly but wrapper functions should be used
7044 So we also now have some wrapper functions that call the X509at functions
7045 when passed certificate requests. (TO DO: similar things can be done with
7046 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7047 things. Some of these need some d2i or i2d and print functionality
7048 because they handle more complex structures.)
7051 *) Add missing #ifndefs that caused missing symbols when building libssl
7052 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7053 NO_RSA in ssl/s2*.c.
7054 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7056 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7057 has a return value which indicates the quality of the random data
7058 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7059 error queue. New function RAND_pseudo_bytes() generates output that is
7060 guaranteed to be unique but not unpredictable. RAND_add is like
7061 RAND_seed, but takes an extra argument for an entropy estimate
7062 (RAND_seed always assumes full entropy).
7065 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7066 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7067 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7068 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7069 false-positive rate of at most 2^-80 for random input.
7072 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7075 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7076 in the 0.9.5 release), this returns the chain
7077 from an X509_CTX structure with a dup of the stack and all
7078 the X509 reference counts upped: so the stack will exist
7079 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7082 Also make SSL_SESSION_print() print out the verify return
7086 *) Add manpage for the pkcs12 command. Also change the default
7087 behaviour so MAC iteration counts are used unless the new
7088 -nomaciter option is used. This improves file security and
7089 only older versions of MSIE (4.0 for example) need it.
7092 *) Honor the no-xxx Configure options when creating .DEF files.
7095 *) Add PKCS#10 attributes to field table: challengePassword,
7096 unstructuredName and unstructuredAddress. These are taken from
7097 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7098 international characters are used.
7100 More changes to X509_ATTRIBUTE code: allow the setting of types
7101 based on strings. Remove the 'loc' parameter when adding
7102 attributes because these will be a SET OF encoding which is sorted
7106 *) Initial changes to the 'req' utility to allow request generation
7107 automation. This will allow an application to just generate a template
7108 file containing all the field values and have req construct the
7111 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7112 used all over the place including certificate requests and PKCS#7
7113 structures. They are currently handled manually where necessary with
7114 some primitive wrappers for PKCS#7. The new functions behave in a
7115 manner analogous to the X509 extension functions: they allow
7116 attributes to be looked up by NID and added.
7118 Later something similar to the X509V3 code would be desirable to
7119 automatically handle the encoding, decoding and printing of the
7120 more complex types. The string types like challengePassword can
7121 be handled by the string table functions.
7123 Also modified the multi byte string table handling. Now there is
7124 a 'global mask' which masks out certain types. The table itself
7125 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7126 is useful when for example there is only one permissible type
7127 (as in countryName) and using the mask might result in no valid
7131 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7132 SSL_get_peer_finished to allow applications to obtain the latest
7133 Finished messages sent to the peer or expected from the peer,
7134 respectively. (SSL_get_peer_finished is usually the Finished message
7135 actually received from the peer, otherwise the protocol will be aborted.)
7137 As the Finished message are message digests of the complete handshake
7138 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7139 be used for external authentication procedures when the authentication
7140 provided by SSL/TLS is not desired or is not enough.
7143 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7144 the host supports BWX extension and if Compaq C is present on the
7145 $PATH. Just exploiting of the BWX extension results in 20-30%
7146 performance kick for some algorithms, e.g. DES and RC4 to mention
7147 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7151 *) Add support for MS "fast SGC". This is arguably a violation of the
7152 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7153 weak crypto and after checking the certificate is SGC a second one
7154 with strong crypto. MS SGC stops the first handshake after receiving
7155 the server certificate message and sends a second client hello. Since
7156 a server will typically do all the time consuming operations before
7157 expecting any further messages from the client (server key exchange
7158 is the most expensive) there is little difference between the two.
7160 To get OpenSSL to support MS SGC we have to permit a second client
7161 hello message after we have sent server done. In addition we have to
7162 reset the MAC if we do get this second client hello.
7165 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7166 if a DER encoded private key is RSA or DSA traditional format. Changed
7167 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7168 format DER encoded private key. Newer code should use PKCS#8 format which
7169 has the key type encoded in the ASN1 structure. Added DER private key
7170 support to pkcs8 application.
7173 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7174 ciphersuites has been selected (as required by the SSL 3/TLS 1
7175 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7176 is set, we interpret this as a request to violate the specification
7177 (the worst that can happen is a handshake failure, and 'correct'
7178 behaviour would result in a handshake failure anyway).
7181 *) In SSL_CTX_add_session, take into account that there might be multiple
7182 SSL_SESSION structures with the same session ID (e.g. when two threads
7183 concurrently obtain them from an external cache).
7184 The internal cache can handle only one SSL_SESSION with a given ID,
7185 so if there's a conflict, we now throw out the old one to achieve
7189 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7190 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7191 some routines that use cipher OIDs: some ciphers do not have OIDs
7192 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7196 *) Simplify the trust setting structure and code. Now we just have
7197 two sequences of OIDs for trusted and rejected settings. These will
7198 typically have values the same as the extended key usage extension
7199 and any application specific purposes.
7201 The trust checking code now has a default behaviour: it will just
7202 check for an object with the same NID as the passed id. Functions can
7203 be provided to override either the default behaviour or the behaviour
7204 for a given id. SSL client, server and email already have functions
7205 in place for compatibility: they check the NID and also return "trusted"
7206 if the certificate is self signed.
7209 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7210 traditional format into an EVP_PKEY structure.
7213 *) Add a password callback function PEM_cb() which either prompts for
7214 a password if usr_data is NULL or otherwise assumes it is a null
7215 terminated password. Allow passwords to be passed on command line
7216 environment or config files in a few more utilities.
7219 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7220 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7221 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7222 Update documentation.
7225 *) Support for ASN1 "NULL" type. This could be handled before by using
7226 ASN1_TYPE but there wasn't any function that would try to read a NULL
7227 and produce an error if it couldn't. For compatibility we also have
7228 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7229 don't allocate anything because they don't need to.
7232 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7234 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7236 *) Rebuild of the memory allocation routines used by OpenSSL code and
7237 possibly others as well. The purpose is to make an interface that
7238 provide hooks so anyone can build a separate set of allocation and
7239 deallocation routines to be used by OpenSSL, for example memory
7240 pool implementations, or something else, which was previously hard
7241 since Malloc(), Realloc() and Free() were defined as macros having
7242 the values malloc, realloc and free, respectively (except for Win32
7243 compilations). The same is provided for memory debugging code.
7244 OpenSSL already comes with functionality to find memory leaks, but
7245 this gives people a chance to debug other memory problems.
7247 With these changes, a new set of functions and macros have appeared:
7249 CRYPTO_set_mem_debug_functions() [F]
7250 CRYPTO_get_mem_debug_functions() [F]
7251 CRYPTO_dbg_set_options() [F]
7252 CRYPTO_dbg_get_options() [F]
7253 CRYPTO_malloc_debug_init() [M]
7255 The memory debug functions are NULL by default, unless the library
7256 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7257 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7258 gives the standard debugging functions that come with OpenSSL) or
7259 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7260 provided by the library user) must be used. When the standard
7261 debugging functions are used, CRYPTO_dbg_set_options can be used to
7262 request additional information:
7263 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7264 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7266 Also, things like CRYPTO_set_mem_functions will always give the
7267 expected result (the new set of functions is used for allocation
7268 and deallocation) at all times, regardless of platform and compiler
7271 To finish it up, some functions that were never use in any other
7272 way than through macros have a new API and new semantic:
7275 CRYPTO_dbg_realloc()
7278 All macros of value have retained their old syntax.
7279 [Richard Levitte and Bodo Moeller]
7281 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7282 ordering of SMIMECapabilities wasn't in "strength order" and there
7283 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7287 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7288 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7289 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7291 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7292 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7293 functionality to handle multipart/signed properly) and a utility
7294 called 'smime' to call all this stuff. This is based on code I
7295 originally wrote for Celo who have kindly allowed it to be
7296 included in OpenSSL.
7299 *) Add variants des_set_key_checked and des_set_key_unchecked of
7300 des_set_key (aka des_key_sched). Global variable des_check_key
7301 decides which of these is called by des_set_key; this way
7302 des_check_key behaves as it always did, but applications and
7303 the library itself, which was buggy for des_check_key == 1,
7304 have a cleaner way to pick the version they need.
7307 *) New function PKCS12_newpass() which changes the password of a
7311 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7312 dynamic mix. In both cases the ids can be used as an index into the
7313 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7314 functions so they accept a list of the field values and the
7315 application doesn't need to directly manipulate the X509_TRUST
7319 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7323 *) Modify the way the V3 extension code looks up extensions. This now
7324 works in a similar way to the object code: we have some "standard"
7325 extensions in a static table which is searched with OBJ_bsearch()
7326 and the application can add dynamic ones if needed. The file
7327 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7328 updated whenever a new extension is added to the core code and kept
7329 in ext_nid order. There is a simple program 'tabtest.c' which checks
7330 this. New extensions are not added too often so this file can readily
7331 be maintained manually.
7333 There are two big advantages in doing things this way. The extensions
7334 can be looked up immediately and no longer need to be "added" using
7335 X509V3_add_standard_extensions(): this function now does nothing.
7336 [Side note: I get *lots* of email saying the extension code doesn't
7337 work because people forget to call this function]
7338 Also no dynamic allocation is done unless new extensions are added:
7339 so if we don't add custom extensions there is no need to call
7340 X509V3_EXT_cleanup().
7343 *) Modify enc utility's salting as follows: make salting the default. Add a
7344 magic header, so unsalted files fail gracefully instead of just decrypting
7345 to garbage. This is because not salting is a big security hole, so people
7346 should be discouraged from doing it.
7349 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7350 digest to be passed on the command line but it only used this
7351 parameter when signing a certificate. Modified so all relevant
7352 operations are affected by the digest parameter including the
7353 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7354 DSA key was used because it didn't fix the digest.
7357 *) Initial certificate chain verify code. Currently tests the untrusted
7358 certificates for consistency with the verify purpose (which is set
7359 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7361 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7362 this is because it will reject chains with invalid extensions whereas
7363 every previous version of OpenSSL and SSLeay made no checks at all.
7365 Trust code: checks the root CA for the relevant trust settings. Trust
7366 settings have an initial value consistent with the verify purpose: e.g.
7367 if the verify purpose is for SSL client use it expects the CA to be
7368 trusted for SSL client use. However the default value can be changed to
7369 permit custom trust settings: one example of this would be to only trust
7370 certificates from a specific "secure" set of CAs.
7372 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7373 which should be used for version portability: especially since the
7374 verify structure is likely to change more often now.
7376 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7377 to set them. If not set then assume SSL clients will verify SSL servers
7380 Two new options to the verify program: -untrusted allows a set of
7381 untrusted certificates to be passed in and -purpose which sets the
7382 intended purpose of the certificate. If a purpose is set then the
7383 new chain verify code is used to check extension consistency.
7386 *) Support for the authority information access extension.
7389 *) Modify RSA and DSA PEM read routines to transparently handle
7390 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7391 public keys in a format compatible with certificate
7392 SubjectPublicKeyInfo structures. Unfortunately there were already
7393 functions called *_PublicKey_* which used various odd formats so
7394 these are retained for compatibility: however the DSA variants were
7395 never in a public release so they have been deleted. Changed dsa/rsa
7396 utilities to handle the new format: note no releases ever handled public
7397 keys so we should be OK.
7399 The primary motivation for this change is to avoid the same fiasco
7400 that dogs private keys: there are several incompatible private key
7401 formats some of which are standard and some OpenSSL specific and
7402 require various evil hacks to allow partial transparent handling and
7403 even then it doesn't work with DER formats. Given the option anything
7404 other than PKCS#8 should be dumped: but the other formats have to
7405 stay in the name of compatibility.
7407 With public keys and the benefit of hindsight one standard format
7408 is used which works with EVP_PKEY, RSA or DSA structures: though
7409 it clearly returns an error if you try to read the wrong kind of key.
7411 Added a -pubkey option to the 'x509' utility to output the public key.
7412 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7413 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7414 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7415 that do the same as the EVP_PKEY_assign_*() except they up the
7416 reference count of the added key (they don't "swallow" the
7420 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7421 CRLs would fail if the file contained no certificates or no CRLs:
7422 added a new function to read in both types and return the number
7423 read: this means that if none are read it will be an error. The
7424 DER versions of the certificate and CRL reader would always fail
7425 because it isn't possible to mix certificates and CRLs in DER format
7426 without choking one or the other routine. Changed this to just read
7427 a certificate: this is the best we can do. Also modified the code
7428 in apps/verify.c to take notice of return codes: it was previously
7429 attempting to read in certificates from NULL pointers and ignoring
7430 any errors: this is one reason why the cert and CRL reader seemed
7431 to work. It doesn't check return codes from the default certificate
7432 routines: these may well fail if the certificates aren't installed.
7435 *) Code to support otherName option in GeneralName.
7438 *) First update to verify code. Change the verify utility
7439 so it warns if it is passed a self signed certificate:
7440 for consistency with the normal behaviour. X509_verify
7441 has been modified to it will now verify a self signed
7442 certificate if *exactly* the same certificate appears
7443 in the store: it was previously impossible to trust a
7444 single self signed certificate. This means that:
7445 openssl verify ss.pem
7446 now gives a warning about a self signed certificate but
7447 openssl verify -CAfile ss.pem ss.pem
7451 *) For servers, store verify_result in SSL_SESSION data structure
7452 (and add it to external session representation).
7453 This is needed when client certificate verifications fails,
7454 but an application-provided verification callback (set by
7455 SSL_CTX_set_cert_verify_callback) allows accepting the session
7456 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7457 but returns 1): When the session is reused, we have to set
7458 ssl->verify_result to the appropriate error code to avoid
7460 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7462 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7463 case in PKCS7_dataInit() where the signed PKCS7 structure
7464 didn't contain any existing data because it was being created.
7465 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7467 *) Add a salt to the key derivation routines in enc.c. This
7468 forms the first 8 bytes of the encrypted file. Also add a
7469 -S option to allow a salt to be input on the command line.
7472 *) New function X509_cmp(). Oddly enough there wasn't a function
7473 to compare two certificates. We do this by working out the SHA1
7474 hash and comparing that. X509_cmp() will be needed by the trust
7478 *) SSL_get1_session() is like SSL_get_session(), but increments
7479 the reference count in the SSL_SESSION returned.
7480 [Geoff Thorpe <geoff@eu.c2.net>]
7482 *) Fix for 'req': it was adding a null to request attributes.
7483 Also change the X509_LOOKUP and X509_INFO code to handle
7484 certificate auxiliary information.
7487 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7491 *) Add the possibility to add extra information to the memory leak
7492 detecting output, to form tracebacks, showing from where each
7493 allocation was originated: CRYPTO_push_info("constant string") adds
7494 the string plus current file name and line number to a per-thread
7495 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7496 is like calling CYRPTO_pop_info() until the stack is empty.
7497 Also updated memory leak detection code to be multi-thread-safe.
7500 *) Add options -text and -noout to pkcs7 utility and delete the
7501 encryption options which never did anything. Update docs.
7504 *) Add options to some of the utilities to allow the pass phrase
7505 to be included on either the command line (not recommended on
7506 OSes like Unix) or read from the environment. Update the
7507 manpages and fix a few bugs.
7510 *) Add a few manpages for some of the openssl commands.
7513 *) Fix the -revoke option in ca. It was freeing up memory twice,
7514 leaking and not finding already revoked certificates.
7517 *) Extensive changes to support certificate auxiliary information.
7518 This involves the use of X509_CERT_AUX structure and X509_AUX
7519 functions. An X509_AUX function such as PEM_read_X509_AUX()
7520 can still read in a certificate file in the usual way but it
7521 will also read in any additional "auxiliary information". By
7522 doing things this way a fair degree of compatibility can be
7523 retained: existing certificates can have this information added
7524 using the new 'x509' options.
7526 Current auxiliary information includes an "alias" and some trust
7527 settings. The trust settings will ultimately be used in enhanced
7528 certificate chain verification routines: currently a certificate
7529 can only be trusted if it is self signed and then it is trusted
7533 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7534 The problem was that one of the replacement routines had not been working
7535 since SSLeay releases. For now the offending routine has been replaced
7536 with non-optimised assembler. Even so, this now gives around 95%
7537 performance improvement for 1024 bit RSA signs.
7540 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7541 handling. Most clients have the effective key size in bits equal to
7542 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7543 A few however don't do this and instead use the size of the decrypted key
7544 to determine the RC2 key length and the AlgorithmIdentifier to determine
7545 the effective key length. In this case the effective key length can still
7546 be 40 bits but the key length can be 168 bits for example. This is fixed
7547 by manually forcing an RC2 key into the EVP_PKEY structure because the
7548 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7549 the key length and effective key length are equal.
7552 *) Add a bunch of functions that should simplify the creation of
7553 X509_NAME structures. Now you should be able to do:
7554 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7555 and have it automatically work out the correct field type and fill in
7556 the structures. The more adventurous can try:
7557 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7558 and it will (hopefully) work out the correct multibyte encoding.
7561 *) Change the 'req' utility to use the new field handling and multibyte
7562 copy routines. Before the DN field creation was handled in an ad hoc
7563 way in req, ca, and x509 which was rather broken and didn't support
7564 BMPStrings or UTF8Strings. Since some software doesn't implement
7565 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7566 using the dirstring_type option. See the new comment in the default
7567 openssl.cnf for more info.
7570 *) Make crypto/rand/md_rand.c more robust:
7571 - Assure unique random numbers after fork().
7572 - Make sure that concurrent threads access the global counter and
7573 md serializably so that we never lose entropy in them
7574 or use exactly the same state in multiple threads.
7575 Access to the large state is not always serializable because
7576 the additional locking could be a performance killer, and
7577 md should be large enough anyway.
7580 *) New file apps/app_rand.c with commonly needed functionality
7581 for handling the random seed file.
7583 Use the random seed file in some applications that previously did not:
7585 dsaparam -genkey (which also ignored its '-rand' option),
7588 x509 (when signing).
7589 Except on systems with /dev/urandom, it is crucial to have a random
7590 seed file at least for key creation, DSA signing, and for DH exchanges;
7591 for RSA signatures we could do without one.
7593 gendh and gendsa (unlike genrsa) used to read only the first byte
7594 of each file listed in the '-rand' option. The function as previously
7595 found in genrsa is now in app_rand.c and is used by all programs
7596 that support '-rand'.
7599 *) In RAND_write_file, use mode 0600 for creating files;
7600 don't just chmod when it may be too late.
7603 *) Report an error from X509_STORE_load_locations
7604 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7607 *) New function ASN1_mbstring_copy() this copies a string in either
7608 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7609 into an ASN1_STRING type. A mask of permissible types is passed
7610 and it chooses the "minimal" type to use or an error if not type
7614 *) Add function equivalents to the various macros in asn1.h. The old
7615 macros are retained with an M_ prefix. Code inside the library can
7616 use the M_ macros. External code (including the openssl utility)
7617 should *NOT* in order to be "shared library friendly".
7620 *) Add various functions that can check a certificate's extensions
7621 to see if it usable for various purposes such as SSL client,
7622 server or S/MIME and CAs of these types. This is currently
7623 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7624 verification. Also added a -purpose flag to x509 utility to
7625 print out all the purposes.
7628 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7632 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7633 for, obtain and decode and extension and obtain its critical flag.
7634 This allows all the necessary extension code to be handled in a
7635 single function call.
7638 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7639 platforms. See crypto/rc4/rc4_enc.c for further details.
7642 *) New -noout option to asn1parse. This causes no output to be produced
7643 its main use is when combined with -strparse and -out to extract data
7644 from a file (which may not be in ASN.1 format).
7647 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7648 when producing the local key id.
7649 [Richard Levitte <levitte@stacken.kth.se>]
7651 *) New option -dhparam in s_server. This allows a DH parameter file to be
7652 stated explicitly. If it is not stated then it tries the first server
7653 certificate file. The previous behaviour hard coded the filename
7657 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7658 a public key to be input or output. For example:
7659 openssl rsa -in key.pem -pubout -out pubkey.pem
7660 Also added necessary DSA public key functions to handle this.
7663 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7664 in the message. This was handled by allowing
7665 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7666 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7668 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7669 to the end of the strings whereas this didn't. This would cause problems
7670 if strings read with d2i_ASN1_bytes() were later modified.
7671 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7673 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7674 data and it contains EOF it will end up returning an error. This is
7675 caused by input 46 bytes long. The cause is due to the way base64
7676 BIOs find the start of base64 encoded data. They do this by trying a
7677 trial decode on each line until they find one that works. When they
7678 do a flag is set and it starts again knowing it can pass all the
7679 data directly through the decoder. Unfortunately it doesn't reset
7680 the context it uses. This means that if EOF is reached an attempt
7681 is made to pass two EOFs through the context and this causes the
7682 resulting error. This can also cause other problems as well. As is
7683 usual with these problems it takes *ages* to find and the fix is
7684 trivial: move one line.
7685 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7687 *) Ugly workaround to get s_client and s_server working under Windows. The
7688 old code wouldn't work because it needed to select() on sockets and the
7689 tty (for keypresses and to see if data could be written). Win32 only
7690 supports select() on sockets so we select() with a 1s timeout on the
7691 sockets and then see if any characters are waiting to be read, if none
7692 are present then we retry, we also assume we can always write data to
7693 the tty. This isn't nice because the code then blocks until we've
7694 received a complete line of data and it is effectively polling the
7695 keyboard at 1s intervals: however it's quite a bit better than not
7696 working at all :-) A dedicated Windows application might handle this
7697 with an event loop for example.
7700 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7701 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7702 will be called when RSA_sign() and RSA_verify() are used. This is useful
7703 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7704 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7705 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7706 This necessitated the support of an extra signature type NID_md5_sha1
7707 for SSL signatures and modifications to the SSL library to use it instead
7708 of calling RSA_public_decrypt() and RSA_private_encrypt().
7711 *) Add new -verify -CAfile and -CApath options to the crl program, these
7712 will lookup a CRL issuers certificate and verify the signature in a
7713 similar way to the verify program. Tidy up the crl program so it
7714 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7715 less strict. It will now permit CRL extensions even if it is not
7716 a V2 CRL: this will allow it to tolerate some broken CRLs.
7719 *) Initialize all non-automatic variables each time one of the openssl
7720 sub-programs is started (this is necessary as they may be started
7721 multiple times from the "OpenSSL>" prompt).
7722 [Lennart Bang, Bodo Moeller]
7724 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7725 removing all other RSA functionality (this is what NO_RSA does). This
7726 is so (for example) those in the US can disable those operations covered
7727 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7731 *) Non-copying interface to BIO pairs.
7732 (still largely untested)
7735 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7736 ASCII string. This was handled independently in various places before.
7739 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7740 UTF8 strings a character at a time.
7743 *) Use client_version from client hello to select the protocol
7744 (s23_srvr.c) and for RSA client key exchange verification
7745 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7748 *) Add various utility functions to handle SPKACs, these were previously
7749 handled by poking round in the structure internals. Added new function
7750 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7751 print, verify and generate SPKACs. Based on an original idea from
7752 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7755 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7758 *) Allow the config file extension section to be overwritten on the
7759 command line. Based on an original idea from Massimiliano Pala
7760 <madwolf@comune.modena.it>. The new option is called -extensions
7761 and can be applied to ca, req and x509. Also -reqexts to override
7762 the request extensions in req and -crlexts to override the crl extensions
7766 *) Add new feature to the SPKAC handling in ca. Now you can include
7767 the same field multiple times by preceding it by "XXXX." for example:
7770 this is the same syntax as used in the req config file.
7773 *) Allow certificate extensions to be added to certificate requests. These
7774 are specified in a 'req_extensions' option of the req section of the
7775 config file. They can be printed out with the -text option to req but
7776 are otherwise ignored at present.
7779 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7780 data read consists of only the final block it would not decrypted because
7781 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7782 A misplaced 'break' also meant the decrypted final block might not be
7783 copied until the next read.
7786 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7787 a few extra parameters to the DH structure: these will be useful if
7788 for example we want the value of 'q' or implement X9.42 DH.
7791 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7792 provides hooks that allow the default DSA functions or functions on a
7793 "per key" basis to be replaced. This allows hardware acceleration and
7794 hardware key storage to be handled without major modification to the
7795 library. Also added low level modexp hooks and CRYPTO_EX structure and
7796 associated functions.
7799 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7800 as "read only": it can't be written to and the buffer it points to will
7801 not be freed. Reading from a read only BIO is much more efficient than
7802 a normal memory BIO. This was added because there are several times when
7803 an area of memory needs to be read from a BIO. The previous method was
7804 to create a memory BIO and write the data to it, this results in two
7805 copies of the data and an O(n^2) reading algorithm. There is a new
7806 function BIO_new_mem_buf() which creates a read only memory BIO from
7807 an area of memory. Also modified the PKCS#7 routines to use read only
7811 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7812 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7813 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7814 but a retry condition occured while trying to read the rest.
7817 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7818 NID_pkcs7_encrypted by default: this was wrong since this should almost
7819 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7820 the encrypted data type: this is a more sensible place to put it and it
7821 allows the PKCS#12 code to be tidied up that duplicated this
7825 *) Changed obj_dat.pl script so it takes its input and output files on
7826 the command line. This should avoid shell escape redirection problems
7830 *) Initial support for certificate extension requests, these are included
7831 in things like Xenroll certificate requests. Included functions to allow
7832 extensions to be obtained and added.
7835 *) -crlf option to s_client and s_server for sending newlines as
7836 CRLF (as required by many protocols).
7839 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7841 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7842 [Ralf S. Engelschall]
7844 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7845 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7847 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7851 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7852 DH parameters/keys (q is lost during that conversion, but the resulting
7853 DH parameters contain its length).
7855 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7856 much faster than DH_generate_parameters (which creates parameters
7857 where p = 2*q + 1), and also the smaller q makes DH computations
7858 much more efficient (160-bit exponentiation instead of 1024-bit
7859 exponentiation); so this provides a convenient way to support DHE
7860 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7861 utter importance to use
7862 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7864 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7865 when such DH parameters are used, because otherwise small subgroup
7866 attacks may become possible!
7869 *) Avoid memory leak in i2d_DHparams.
7872 *) Allow the -k option to be used more than once in the enc program:
7873 this allows the same encrypted message to be read by multiple recipients.
7876 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7877 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7878 it will always use the numerical form of the OID, even if it has a short
7882 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7883 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7884 otherwise bn_mod_exp was called. In the case of hardware keys for example
7885 no private key components need be present and it might store extra data
7886 in the RSA structure, which cannot be accessed from bn_mod_exp.
7887 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7888 private key operations.
7891 *) Added support for SPARC Linux.
7894 *) pem_password_cb function type incompatibly changed from
7895 typedef int pem_password_cb(char *buf, int size, int rwflag);
7897 ....(char *buf, int size, int rwflag, void *userdata);
7898 so that applications can pass data to their callbacks:
7899 The PEM[_ASN1]_{read,write}... functions and macros now take an
7900 additional void * argument, which is just handed through whenever
7901 the password callback is called.
7902 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7904 New function SSL_CTX_set_default_passwd_cb_userdata.
7906 Compatibility note: As many C implementations push function arguments
7907 onto the stack in reverse order, the new library version is likely to
7908 interoperate with programs that have been compiled with the old
7909 pem_password_cb definition (PEM_whatever takes some data that
7910 happens to be on the stack as its last argument, and the callback
7911 just ignores this garbage); but there is no guarantee whatsoever that
7914 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7915 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7916 problems not only on Windows, but also on some Unix platforms.
7917 To avoid problematic command lines, these definitions are now in an
7918 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7919 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7922 *) MIPS III/IV assembler module is reimplemented.
7925 *) More DES library cleanups: remove references to srand/rand and
7926 delete an unused file.
7929 *) Add support for the the free Netwide assembler (NASM) under Win32,
7930 since not many people have MASM (ml) and it can be hard to obtain.
7931 This is currently experimental but it seems to work OK and pass all
7932 the tests. Check out INSTALL.W32 for info.
7935 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7936 without temporary keys kept an extra copy of the server key,
7937 and connections with temporary keys did not free everything in case
7941 *) New function RSA_check_key and new openssl rsa option -check
7942 for verifying the consistency of RSA keys.
7943 [Ulf Moeller, Bodo Moeller]
7945 *) Various changes to make Win32 compile work:
7946 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7947 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7948 comparison" warnings.
7949 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7952 *) Add a debugging option to PKCS#5 v2 key generation function: when
7953 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7954 derived keys are printed to stderr.
7957 *) Copy the flags in ASN1_STRING_dup().
7958 [Roman E. Pavlov <pre@mo.msk.ru>]
7960 *) The x509 application mishandled signing requests containing DSA
7961 keys when the signing key was also DSA and the parameters didn't match.
7963 It was supposed to omit the parameters when they matched the signing key:
7964 the verifying software was then supposed to automatically use the CA's
7965 parameters if they were absent from the end user certificate.
7967 Omitting parameters is no longer recommended. The test was also
7968 the wrong way round! This was probably due to unusual behaviour in
7969 EVP_cmp_parameters() which returns 1 if the parameters match.
7970 This meant that parameters were omitted when they *didn't* match and
7971 the certificate was useless. Certificates signed with 'ca' didn't have
7973 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7975 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7976 The interface is as follows:
7977 Applications can use
7978 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7979 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7980 "off" is now the default.
7981 The library internally uses
7982 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7983 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7984 to disable memory-checking temporarily.
7986 Some inconsistent states that previously were possible (and were
7987 even the default) are now avoided.
7989 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7990 with each memory chunk allocated; this is occasionally more helpful
7991 than just having a counter.
7993 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7995 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7999 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8000 which largely parallels "options", but is for changing API behaviour,
8001 whereas "options" are about protocol behaviour.
8002 Initial "mode" flags are:
8004 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8005 a single record has been written.
8006 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8007 retries use the same buffer location.
8008 (But all of the contents must be
8012 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8015 *) Fix problems with no-hmac etc.
8016 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8018 *) New functions RSA_get_default_method(), RSA_set_method() and
8019 RSA_get_method(). These allows replacement of RSA_METHODs without having
8020 to mess around with the internals of an RSA structure.
8023 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8024 Also really enable memory leak checks in openssl.c and in some
8026 [Chad C. Mulligan, Bodo Moeller]
8028 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8029 up the length of negative integers. This has now been simplified to just
8030 store the length when it is first determined and use it later, rather
8031 than trying to keep track of where data is copied and updating it to
8033 [Steve Henson, reported by Brien Wheeler
8034 <bwheeler@authentica-security.com>]
8036 *) Add a new function PKCS7_signatureVerify. This allows the verification
8037 of a PKCS#7 signature but with the signing certificate passed to the
8038 function itself. This contrasts with PKCS7_dataVerify which assumes the
8039 certificate is present in the PKCS#7 structure. This isn't always the
8040 case: certificates can be omitted from a PKCS#7 structure and be
8041 distributed by "out of band" means (such as a certificate database).
8044 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8045 function prototypes in pem.h, also change util/mkdef.pl to add the
8046 necessary function names.
8049 *) mk1mf.pl (used by Windows builds) did not properly read the
8050 options set by Configure in the top level Makefile, and Configure
8051 was not even able to write more than one option correctly.
8052 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8055 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8056 file to be loaded from a BIO or FILE pointer. The BIO version will
8057 for example allow memory BIOs to contain config info.
8060 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8061 Whoever hopes to achieve shared-library compatibility across versions
8062 must use this, not the compile-time macro.
8063 (Exercise 0.9.4: Which is the minimum library version required by
8065 Note: All this applies only to multi-threaded programs, others don't
8069 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8070 through a BIO pair triggered the default case, i.e.
8071 SSLerr(...,SSL_R_UNKNOWN_STATE).
8074 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8075 can use the SSL library even if none of the specific BIOs is
8079 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8080 for the encoded length.
8081 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8083 *) Add initial documentation of the X509V3 functions.
8086 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8087 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8088 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8089 secure PKCS#8 private key format with a high iteration count.
8092 *) Fix determination of Perl interpreter: A perl or perl5
8093 _directory_ in $PATH was also accepted as the interpreter.
8094 [Ralf S. Engelschall]
8096 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8097 wrong with it but it was very old and did things like calling
8098 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8102 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8103 to use the new extension code.
8106 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8107 with macros. This should make it easier to change their form, add extra
8108 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8112 *) Add to configuration table a new entry that can specify an alternative
8113 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8114 according to Mark Crispin <MRC@Panda.COM>.
8118 *) DES CBC did not update the IV. Weird.
8121 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8122 Changing the behaviour of the former might break existing programs --
8123 where IV updating is needed, des_ncbc_encrypt can be used.
8126 *) When bntest is run from "make test" it drives bc to check its
8127 calculations, as well as internally checking them. If an internal check
8128 fails, it needs to cause bc to give a non-zero result or make test carries
8129 on without noticing the failure. Fixed.
8132 *) DES library cleanups.
8135 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8136 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8137 ciphers. NOTE: although the key derivation function has been verified
8138 against some published test vectors it has not been extensively tested
8139 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8143 *) Instead of "mkdir -p", which is not fully portable, use new
8144 Perl script "util/mkdir-p.pl".
8147 *) Rewrite the way password based encryption (PBE) is handled. It used to
8148 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8149 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8150 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8151 the 'parameter' field of the AlgorithmIdentifier is passed to the
8152 underlying key generation function so it must do its own ASN1 parsing.
8153 This has also changed the EVP_PBE_CipherInit() function which now has a
8154 'parameter' argument instead of literal salt and iteration count values
8155 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8158 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8159 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8160 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8161 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8162 value was just used as a "magic string" and not used directly its
8163 value doesn't matter.
8166 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8170 *) "linux-sparc64" configuration (ultrapenguin).
8171 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8172 "linux-sparc" configuration.
8173 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8175 *) config now generates no-xxx options for missing ciphers.
8178 *) Support the EBCDIC character set (work in progress).
8179 File ebcdic.c not yet included because it has a different license.
8180 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8182 *) Support BS2000/OSD-POSIX.
8183 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8185 *) Make callbacks for key generation use void * instead of char *.
8188 *) Make S/MIME samples compile (not yet tested).
8191 *) Additional typesafe stacks.
8194 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8198 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8200 *) New configuration variant "sco5-gcc".
8202 *) Updated some demos.
8203 [Sean O Riordain, Wade Scholine]
8205 *) Add missing BIO_free at exit of pkcs12 application.
8208 *) Fix memory leak in conf.c.
8211 *) Updates for Win32 to assembler version of MD5.
8214 *) Set #! path to perl in apps/der_chop to where we found it
8215 instead of using a fixed path.
8218 *) SHA library changes for irix64-mips4-cc.
8221 *) Improvements for VMS support.
8225 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8227 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8228 This also avoids the problems with SC4.2 and unpatched SC5.
8229 [Andy Polyakov <appro@fy.chalmers.se>]
8231 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8232 These are required because of the typesafe stack would otherwise break
8233 existing code. If old code used a structure member which used to be STACK
8234 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8235 sk_num or sk_value it would produce an error because the num, data members
8236 are not present in STACK_OF. Now it just produces a warning. sk_set
8237 replaces the old method of assigning a value to sk_value
8238 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8239 that does this will no longer work (and should use sk_set instead) but
8240 this could be regarded as a "questionable" behaviour anyway.
8243 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8244 correctly handle encrypted S/MIME data.
8247 *) Change type of various DES function arguments from des_cblock
8248 (which means, in function argument declarations, pointer to char)
8249 to des_cblock * (meaning pointer to array with 8 char elements),
8250 which allows the compiler to do more typechecking; it was like
8251 that back in SSLeay, but with lots of ugly casts.
8253 Introduce new type const_des_cblock.
8256 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8257 problems: find RecipientInfo structure that matches recipient certificate
8258 and initialise the ASN1 structures properly based on passed cipher.
8261 *) Belatedly make the BN tests actually check the results.
8264 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8265 to and from BNs: it was completely broken. New compilation option
8266 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8267 key elements as negative integers.
8270 *) Reorganize and speed up MD5.
8271 [Andy Polyakov <appro@fy.chalmers.se>]
8274 [Richard Levitte <richard@levitte.org>]
8276 *) New option -out to asn1parse to allow the parsed structure to be
8277 output to a file. This is most useful when combined with the -strparse
8278 option to examine the output of things like OCTET STRINGS.
8281 *) Make SSL library a little more fool-proof by not requiring any longer
8282 that SSL_set_{accept,connect}_state be called before
8283 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8284 in many applications because usually everything *appeared* to work as
8285 intended anyway -- now it really works as intended).
8288 *) Move openssl.cnf out of lib/.
8291 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8292 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8293 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8294 [Ralf S. Engelschall]
8296 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8297 handle PKCS#7 enveloped data properly.
8298 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8300 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8301 copying pointers. The cert_st handling is changed by this in
8302 various ways (and thus what used to be known as ctx->default_cert
8303 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8304 any longer when s->cert does not give us what we need).
8305 ssl_cert_instantiate becomes obsolete by this change.
8306 As soon as we've got the new code right (possibly it already is?),
8307 we have solved a couple of bugs of the earlier code where s->cert
8308 was used as if it could not have been shared with other SSL structures.
8310 Note that using the SSL API in certain dirty ways now will result
8311 in different behaviour than observed with earlier library versions:
8312 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8313 does not influence s as it used to.
8315 In order to clean up things more thoroughly, inside SSL_SESSION
8316 we don't use CERT any longer, but a new structure SESS_CERT
8317 that holds per-session data (if available); currently, this is
8318 the peer's certificate chain and, for clients, the server's certificate
8319 and temporary key. CERT holds only those values that can have
8320 meaningful defaults in an SSL_CTX.
8323 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8324 from the internal representation. Various PKCS#7 fixes: remove some
8325 evil casts and set the enc_dig_alg field properly based on the signing
8329 *) Allow PKCS#12 password to be set from the command line or the
8330 environment. Let 'ca' get its config file name from the environment
8331 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8335 *) Allow certificate policies extension to use an IA5STRING for the
8336 organization field. This is contrary to the PKIX definition but
8337 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8341 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8342 without disallowing inline assembler and the like for non-pedantic builds.
8345 *) Support Borland C++ builder.
8346 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8351 *) SHA-1 cleanups and performance enhancements.
8352 [Andy Polyakov <appro@fy.chalmers.se>]
8354 *) Sparc v8plus assembler for the bignum library.
8355 [Andy Polyakov <appro@fy.chalmers.se>]
8357 *) Accept any -xxx and +xxx compiler options in Configure.
8360 *) Update HPUX configuration.
8363 *) Add missing sk_<type>_unshift() function to safestack.h
8364 [Ralf S. Engelschall]
8366 *) New function SSL_CTX_use_certificate_chain_file that sets the
8367 "extra_cert"s in addition to the certificate. (This makes sense
8368 only for "PEM" format files, as chains as a whole are not
8372 *) Support verify_depth from the SSL API.
8373 x509_vfy.c had what can be considered an off-by-one-error:
8374 Its depth (which was not part of the external interface)
8375 was actually counting the number of certificates in a chain;
8376 now it really counts the depth.
8379 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8380 instead of X509err, which often resulted in confusing error
8381 messages since the error codes are not globally unique
8382 (e.g. an alleged error in ssl3_accept when a certificate
8383 didn't match the private key).
8385 *) New function SSL_CTX_set_session_id_context that allows to set a default
8386 value (so that you don't need SSL_set_session_id_context for each
8387 connection using the SSL_CTX).
8390 *) OAEP decoding bug fix.
8393 *) Support INSTALL_PREFIX for package builders, as proposed by
8397 *) New Configure options "threads" and "no-threads". For systems
8398 where the proper compiler options are known (currently Solaris
8399 and Linux), "threads" is the default.
8402 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8405 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8406 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8407 such as /usr/local/bin.
8410 *) "make linux-shared" to build shared libraries.
8411 [Niels Poppe <niels@netbox.org>]
8413 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8416 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8417 extension adding in x509 utility.
8420 *) Remove NOPROTO sections and error code comments.
8423 *) Partial rewrite of the DEF file generator to now parse the ANSI
8427 *) New Configure options --prefix=DIR and --openssldir=DIR.
8430 *) Complete rewrite of the error code script(s). It is all now handled
8431 by one script at the top level which handles error code gathering,
8432 header rewriting and C source file generation. It should be much better
8433 than the old method: it now uses a modified version of Ulf's parser to
8434 read the ANSI prototypes in all header files (thus the old K&R definitions
8435 aren't needed for error creation any more) and do a better job of
8436 translating function codes into names. The old 'ASN1 error code imbedded
8437 in a comment' is no longer necessary and it doesn't use .err files which
8438 have now been deleted. Also the error code call doesn't have to appear all
8439 on one line (which resulted in some large lines...).
8442 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8445 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8446 0 (which usually indicates a closed connection), but continue reading.
8449 *) Fix some race conditions.
8452 *) Add support for CRL distribution points extension. Add Certificate
8453 Policies and CRL distribution points documentation.
8456 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8459 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8460 8 of keying material. Merlin has also confirmed interop with this fix
8461 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8462 [Merlin Hughes <merlin@baltimore.ie>]
8464 *) Fix lots of warnings.
8465 [Richard Levitte <levitte@stacken.kth.se>]
8467 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8468 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8469 [Richard Levitte <levitte@stacken.kth.se>]
8471 *) Fix problems with sizeof(long) == 8.
8472 [Andy Polyakov <appro@fy.chalmers.se>]
8474 *) Change functions to ANSI C.
8477 *) Fix typos in error codes.
8478 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8480 *) Remove defunct assembler files from Configure.
8483 *) SPARC v8 assembler BIGNUM implementation.
8484 [Andy Polyakov <appro@fy.chalmers.se>]
8486 *) Support for Certificate Policies extension: both print and set.
8487 Various additions to support the r2i method this uses.
8490 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8491 return a const string when you are expecting an allocated buffer.
8494 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8495 types DirectoryString and DisplayText.
8498 *) Add code to allow r2i extensions to access the configuration database,
8499 add an LHASH database driver and add several ctx helper functions.
8502 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8503 fail when they extended the size of a BIGNUM.
8506 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8507 support typesafe stack.
8510 *) Fix typo in SSL_[gs]et_options().
8511 [Nils Frostberg <nils@medcom.se>]
8513 *) Delete various functions and files that belonged to the (now obsolete)
8514 old X509V3 handling code.
8517 *) New Configure option "rsaref".
8520 *) Don't auto-generate pem.h.
8523 *) Introduce type-safe ASN.1 SETs.
8526 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8527 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8529 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8530 that links with OpenSSL (well at least cause lots of warnings), but fear
8531 not: the conversion is trivial, and it eliminates loads of evil casts. A
8532 few STACKed things have been converted already. Feel free to convert more.
8533 In the fullness of time, I'll do away with the STACK type altogether.
8536 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8537 specified in <certfile> by updating the entry in the index.txt file.
8538 This way one no longer has to edit the index.txt file manually for
8539 revoking a certificate. The -revoke option does the gory details now.
8540 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8542 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8543 `-text' option at all and this way the `-noout -text' combination was
8544 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8545 [Ralf S. Engelschall]
8547 *) Make sure a corresponding plain text error message exists for the
8548 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8549 verify callback function determined that a certificate was revoked.
8550 [Ralf S. Engelschall]
8552 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8553 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8554 all available cipers including rc5, which was forgotten until now.
8555 In order to let the testing shell script know which algorithms
8556 are available, a new (up to now undocumented) command
8557 "openssl list-cipher-commands" is used.
8560 *) Bugfix: s_client occasionally would sleep in select() when
8561 it should have checked SSL_pending() first.
8564 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8565 the raw DSA values prior to ASN.1 encoding.
8568 *) Tweaks to Configure
8569 [Niels Poppe <niels@netbox.org>]
8571 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8575 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8578 *) New config option to avoid instructions that are illegal on the 80386.
8579 The default code is faster, but requires at least a 486.
8582 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8583 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8584 same as SSL2_VERSION anyway.
8587 *) New "-showcerts" option for s_client.
8590 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8591 application. Various cleanups and fixes.
8594 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8595 modify error routines to work internally. Add error codes and PBE init
8596 to library startup routines.
8599 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8600 packing functions to asn1 and evp. Changed function names and error
8601 codes along the way.
8604 *) PKCS12 integration: and so it begins... First of several patches to
8605 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8606 objects to objects.h
8609 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8610 and display support for Thawte strong extranet extension.
8613 *) Add LinuxPPC support.
8614 [Jeff Dubrule <igor@pobox.org>]
8616 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8617 bn_div_words in alpha.s.
8618 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8620 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8621 OAEP isn't supported when OpenSSL is built with RSAref.
8622 [Ulf Moeller <ulf@fitug.de>]
8624 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8625 so they no longer are missing under -DNOPROTO.
8626 [Soren S. Jorvang <soren@t.dk>]
8629 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8631 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8632 doesn't work when the session is reused. Coming soon!
8635 *) Fix a security hole, that allows sessions to be reused in the wrong
8636 context thus bypassing client cert protection! All software that uses
8637 client certs and session caches in multiple contexts NEEDS PATCHING to
8638 allow session reuse! A fuller solution is in the works.
8639 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8641 *) Some more source tree cleanups (removed obsolete files
8642 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8643 permission on "config" script to be executable) and a fix for the INSTALL
8645 [Ulf Moeller <ulf@fitug.de>]
8647 *) Remove some legacy and erroneous uses of malloc, free instead of
8649 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8651 *) Make rsa_oaep_test return non-zero on error.
8652 [Ulf Moeller <ulf@fitug.de>]
8654 *) Add support for native Solaris shared libraries. Configure
8655 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8656 if someone would make that last step automatic.
8657 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8659 *) ctx_size was not built with the right compiler during "make links". Fixed.
8662 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8663 except NULL ciphers". This means the default cipher list will no longer
8664 enable NULL ciphers. They need to be specifically enabled e.g. with
8665 the string "DEFAULT:eNULL".
8668 *) Fix to RSA private encryption routines: if p < q then it would
8669 occasionally produce an invalid result. This will only happen with
8670 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8673 *) Be less restrictive and allow also `perl util/perlpath.pl
8674 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8675 because this way one can also use an interpreter named `perl5' (which is
8676 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8677 installed as `perl').
8678 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8680 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8681 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8683 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8684 advapi32.lib to Win32 build and change the pem test comparision
8685 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8686 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8687 and crypto/des/ede_cbcm_enc.c.
8690 *) DES quad checksum was broken on big-endian architectures. Fixed.
8693 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8694 Win32 test batch file so it (might) work again. The Win32 test batch file
8695 is horrible: I feel ill....
8698 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8699 in e_os.h. Audit of header files to check ANSI and non ANSI
8700 sections: 10 functions were absent from non ANSI section and not exported
8701 from Windows DLLs. Fixed up libeay.num for new functions.
8704 *) Make `openssl version' output lines consistent.
8705 [Ralf S. Engelschall]
8707 *) Fix Win32 symbol export lists for BIO functions: Added
8708 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8709 to ms/libeay{16,32}.def.
8710 [Ralf S. Engelschall]
8712 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8713 fine under Unix and passes some trivial tests I've now added. But the
8714 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8715 added to make sure no one expects that this stuff really works in the
8716 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8717 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8719 [Ralf S. Engelschall]
8721 *) Fix the generation of two part addresses in perl.
8722 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8724 *) Add config entry for Linux on MIPS.
8725 [John Tobey <jtobey@channel1.com>]
8727 *) Make links whenever Configure is run, unless we are on Windoze.
8730 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8731 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8735 *) Add a useful kludge to allow package maintainers to specify compiler and
8736 other platforms details on the command line without having to patch the
8737 Configure script everytime: One now can use ``perl Configure
8738 <id>:<details>'', i.e. platform ids are allowed to have details appended
8739 to them (seperated by colons). This is treated as there would be a static
8740 pre-configured entry in Configure's %table under key <id> with value
8741 <details> and ``perl Configure <id>'' is called. So, when you want to
8742 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8743 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8744 now, which overrides the FreeBSD-elf entry on-the-fly.
8745 [Ralf S. Engelschall]
8747 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8750 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8751 on the `perl Configure ...' command line. This way one can compile
8752 OpenSSL libraries with Position Independent Code (PIC) which is needed
8753 for linking it into DSOs.
8754 [Ralf S. Engelschall]
8756 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8760 *) Cleaned up the LICENSE document: The official contact for any license
8761 questions now is the OpenSSL core team under openssl-core@openssl.org.
8762 And add a paragraph about the dual-license situation to make sure people
8763 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8764 to the OpenSSL toolkit.
8765 [Ralf S. Engelschall]
8767 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8768 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8769 Additonally cleaned up the `make links' target: Remove unnecessary
8770 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8771 to speed processing and no longer clutter the display with confusing
8772 stuff. Instead only the actually done links are displayed.
8773 [Ralf S. Engelschall]
8775 *) Permit null encryption ciphersuites, used for authentication only. It used
8776 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8777 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8781 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8782 signed attributes when verifying signatures (this would break them),
8783 the detached data encoding was wrong and public keys obtained using
8784 X509_get_pubkey() weren't freed.
8787 *) Add text documentation for the BUFFER functions. Also added a work around
8788 to a Win95 console bug. This was triggered by the password read stuff: the
8789 last character typed gets carried over to the next fread(). If you were
8790 generating a new cert request using 'req' for example then the last
8791 character of the passphrase would be CR which would then enter the first
8795 *) Added the new `Includes OpenSSL Cryptography Software' button as
8796 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8797 button and can be used by applications based on OpenSSL to show the
8798 relationship to the OpenSSL project.
8799 [Ralf S. Engelschall]
8801 *) Remove confusing variables in function signatures in files
8802 ssl/ssl_lib.c and ssl/ssl.h.
8803 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8805 *) Don't install bss_file.c under PREFIX/include/
8806 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8808 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8809 functions that return function pointers and has support for NT specific
8810 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8811 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8812 unsigned to signed types: this was killing the Win32 compile.
8815 *) Add new certificate file to stack functions,
8816 SSL_add_dir_cert_subjects_to_stack() and
8817 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8818 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8819 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8820 This means that Apache-SSL and similar packages don't have to mess around
8821 to add as many CAs as they want to the preferred list.
8824 *) Experiment with doxygen documentation. Currently only partially applied to
8826 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8827 openssl.doxy as the configuration file.
8830 *) Get rid of remaining C++-style comments which strict C compilers hate.
8831 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8833 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8834 compiled in by default: it has problems with large keys.
8837 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8838 DH private keys and/or callback functions which directly correspond to
8839 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8840 is needed for applications which have to configure certificates on a
8841 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8843 For the RSA certificate situation is makes no difference, but
8844 for the DSA certificate situation this fixes the "no shared cipher"
8845 problem where the OpenSSL cipher selection procedure failed because the
8846 temporary keys were not overtaken from the context and the API provided
8847 no way to reconfigure them.
8848 The new functions now let applications reconfigure the stuff and they
8849 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8850 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8851 non-public-API function ssl_cert_instantiate() is used as a helper
8852 function and also to reduce code redundancy inside ssl_rsa.c.
8853 [Ralf S. Engelschall]
8855 *) Move s_server -dcert and -dkey options out of the undocumented feature
8856 area because they are useful for the DSA situation and should be
8857 recognized by the users.
8858 [Ralf S. Engelschall]
8860 *) Fix the cipher decision scheme for export ciphers: the export bits are
8861 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8862 SSL_EXP_MASK. So, the original variable has to be used instead of the
8863 already masked variable.
8864 [Richard Levitte <levitte@stacken.kth.se>]
8866 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8867 [Richard Levitte <levitte@stacken.kth.se>]
8869 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8870 from `int' to `unsigned int' because it's a length and initialized by
8871 EVP_DigestFinal() which expects an `unsigned int *'.
8872 [Richard Levitte <levitte@stacken.kth.se>]
8874 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8875 script. Instead use the usual Shell->Perl transition trick.
8876 [Ralf S. Engelschall]
8878 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8879 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8880 -noout -modulus' as it's already the case for `openssl rsa -noout
8881 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8882 currently the public key is printed (a decision which was already done by
8883 `openssl dsa -modulus' in the past) which serves a similar purpose.
8884 Additionally the NO_RSA no longer completely removes the whole -modulus
8885 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8887 [Ralf S. Engelschall]
8889 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8890 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8891 [Arne Ansper <arne@ats.cyber.ee>]
8893 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8894 to be added. Now both 'req' and 'ca' can use new objects defined in the
8898 *) Add cool BIO that does syslog (or event log on NT).
8899 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8901 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8902 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8903 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8904 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8907 *) Add preliminary config info for new extension code.
8910 *) Make RSA_NO_PADDING really use no padding.
8911 [Ulf Moeller <ulf@fitug.de>]
8913 *) Generate errors when private/public key check is done.
8916 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8917 for some CRL extensions and new objects added.
8920 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8921 key usage extension and fuller support for authority key id.
8924 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8925 padding method for RSA, which is recommended for new applications in PKCS
8926 #1 v2.0 (RFC 2437, October 1998).
8927 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8928 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8929 against Bleichbacher's attack on RSA.
8930 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8933 *) Updates to the new SSL compression code
8934 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8936 *) Fix so that the version number in the master secret, when passed
8937 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8938 (because the server will not accept higher), that the version number
8939 is 0x03,0x01, not 0x03,0x00
8940 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8942 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8943 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8944 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8947 *) Support for RAW extensions where an arbitrary extension can be
8948 created by including its DER encoding. See apps/openssl.cnf for
8952 *) Make sure latest Perl versions don't interpret some generated C array
8953 code as Perl array code in the crypto/err/err_genc.pl script.
8954 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8956 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8957 not many people have the assembler. Various Win32 compilation fixes and
8958 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8962 *) Modify configure script 'Configure' to automatically create crypto/date.h
8963 file under Win32 and also build pem.h from pem.org. New script
8964 util/mkfiles.pl to create the MINFO file on environments that can't do a
8965 'make files': perl util/mkfiles.pl >MINFO should work.
8968 *) Major rework of DES function declarations, in the pursuit of correctness
8969 and purity. As a result, many evil casts evaporated, and some weirdness,
8970 too. You may find this causes warnings in your code. Zapping your evil
8971 casts will probably fix them. Mostly.
8974 *) Fix for a typo in asn1.h. Bug fix to object creation script
8975 obj_dat.pl. It considered a zero in an object definition to mean
8976 "end of object": none of the objects in objects.h have any zeros
8977 so it wasn't spotted.
8978 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8980 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8981 Masking (CBCM). In the absence of test vectors, the best I have been able
8982 to do is check that the decrypt undoes the encrypt, so far. Send me test
8983 vectors if you have them.
8986 *) Correct calculation of key length for export ciphers (too much space was
8987 allocated for null ciphers). This has not been tested!
8990 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8991 message is now correct (it understands "crypto" and "ssl" on its
8992 command line). There is also now an "update" option. This will update
8993 the util/ssleay.num and util/libeay.num files with any new functions.
8995 perl util/mkdef.pl crypto ssl update
8996 it will update them.
8999 *) Overhauled the Perl interface (perl/*):
9000 - ported BN stuff to OpenSSL's different BN library
9001 - made the perl/ source tree CVS-aware
9002 - renamed the package from SSLeay to OpenSSL (the files still contain
9003 their history because I've copied them in the repository)
9004 - removed obsolete files (the test scripts will be replaced
9005 by better Test::Harness variants in the future)
9006 [Ralf S. Engelschall]
9008 *) First cut for a very conservative source tree cleanup:
9009 1. merge various obsolete readme texts into doc/ssleay.txt
9010 where we collect the old documents and readme texts.
9011 2. remove the first part of files where I'm already sure that we no
9012 longer need them because of three reasons: either they are just temporary
9013 files which were left by Eric or they are preserved original files where
9014 I've verified that the diff is also available in the CVS via "cvs diff
9015 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9016 the crypto/md/ stuff).
9017 [Ralf S. Engelschall]
9019 *) More extension code. Incomplete support for subject and issuer alt
9020 name, issuer and authority key id. Change the i2v function parameters
9021 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9022 what that's for :-) Fix to ASN1 macro which messed up
9023 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9026 *) Preliminary support for ENUMERATED type. This is largely copied from the
9030 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9031 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9033 *) Make sure `make rehash' target really finds the `openssl' program.
9034 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9036 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9037 like to hear about it if this slows down other processors.
9040 *) Add CygWin32 platform information to Configure script.
9041 [Alan Batie <batie@aahz.jf.intel.com>]
9043 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9044 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9046 *) New program nseq to manipulate netscape certificate sequences
9049 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9053 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9054 but the BN code had some problems that would cause failures when
9055 doing certificate verification and some other functions.
9056 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9058 *) Add ASN1 and PEM code to support netscape certificate sequences.
9061 *) Add ASN1 and PEM code to support netscape certificate sequences.
9064 *) Add several PKIX and private extended key usage OIDs.
9067 *) Modify the 'ca' program to handle the new extension code. Modify
9068 openssl.cnf for new extension format, add comments.
9071 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9072 and add a sample to openssl.cnf so req -x509 now adds appropriate
9076 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9077 error code, add initial support to X509_print() and x509 application.
9080 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9081 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9082 stuff is currently isolated and isn't even compiled yet.
9085 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9086 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9087 Removed the versions check from X509 routines when loading extensions:
9088 this allows certain broken certificates that don't set the version
9089 properly to be processed.
9092 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9093 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9094 can still be regenerated with "make depend".
9097 *) Spelling mistake in C version of CAST-128.
9098 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9100 *) Changes to the error generation code. The perl script err-code.pl
9101 now reads in the old error codes and retains the old numbers, only
9102 adding new ones if necessary. It also only changes the .err files if new
9103 codes are added. The makefiles have been modified to only insert errors
9104 when needed (to avoid needlessly modifying header files). This is done
9105 by only inserting errors if the .err file is newer than the auto generated
9106 C file. To rebuild all the error codes from scratch (the old behaviour)
9107 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9108 or delete all the .err files.
9111 *) CAST-128 was incorrectly implemented for short keys. The C version has
9112 been fixed, but is untested. The assembler versions are also fixed, but
9113 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9114 to regenerate it if needed.
9115 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9116 Hagino <itojun@kame.net>]
9118 *) File was opened incorrectly in randfile.c.
9119 [Ulf Möller <ulf@fitug.de>]
9121 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9122 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9123 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9124 al: it's just almost always a UTCTime. Note this patch adds new error
9125 codes so do a "make errors" if there are problems.
9128 *) Correct Linux 1 recognition in config.
9129 [Ulf Möller <ulf@fitug.de>]
9131 *) Remove pointless MD5 hash when using DSA keys in ca.
9132 [Anonymous <nobody@replay.com>]
9134 *) Generate an error if given an empty string as a cert directory. Also
9135 generate an error if handed NULL (previously returned 0 to indicate an
9136 error, but didn't set one).
9137 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9139 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9142 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9143 parameters. This was causing a warning which killed off the Win32 compile.
9146 *) Remove C++ style comments from crypto/bn/bn_local.h.
9147 [Neil Costigan <neil.costigan@celocom.com>]
9149 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9150 based on a text string, looking up short and long names and finally
9151 "dot" format. The "dot" format stuff didn't work. Added new function
9152 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9153 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9154 OID is not part of the table.
9157 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9158 X509_LOOKUP_by_alias().
9161 *) Sort openssl functions by name.
9164 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9165 encryption from sample DSA keys (in case anyone is interested the password
9169 *) Make _all_ *_free functions accept a NULL pointer.
9170 [Frans Heymans <fheymans@isaserver.be>]
9172 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9174 [Anonymous <nobody@replay.com>]
9176 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9177 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9179 *) Don't blow it for numeric -newkey arguments to apps/req.
9180 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9182 *) Temp key "for export" tests were wrong in s3_srvr.c.
9183 [Anonymous <nobody@replay.com>]
9185 *) Add prototype for temp key callback functions
9186 SSL_CTX_set_tmp_{rsa,dh}_callback().
9189 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9190 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9193 *) X509_name_add_entry() freed the wrong thing after an error.
9194 [Arne Ansper <arne@ats.cyber.ee>]
9196 *) rsa_eay.c would attempt to free a NULL context.
9197 [Arne Ansper <arne@ats.cyber.ee>]
9199 *) BIO_s_socket() had a broken should_retry() on Windoze.
9200 [Arne Ansper <arne@ats.cyber.ee>]
9202 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9203 [Arne Ansper <arne@ats.cyber.ee>]
9205 *) Make sure the already existing X509_STORE->depth variable is initialized
9206 in X509_STORE_new(), but document the fact that this variable is still
9207 unused in the certificate verification process.
9208 [Ralf S. Engelschall]
9210 *) Fix the various library and apps files to free up pkeys obtained from
9211 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9214 *) Fix reference counting in X509_PUBKEY_get(). This makes
9215 demos/maurice/example2.c work, amongst others, probably.
9216 [Steve Henson and Ben Laurie]
9218 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9219 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9220 are no longer created. This way we have a single and consistent command
9221 line interface `openssl <command>', similar to `cvs <command>'.
9222 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9224 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9225 BIT STRING wrapper always have zero unused bits.
9228 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9231 *) Make the top-level INSTALL documentation easier to understand.
9234 *) Makefiles updated to exit if an error occurs in a sub-directory
9235 make (including if user presses ^C) [Paul Sutton]
9237 *) Make Montgomery context stuff explicit in RSA data structure.
9240 *) Fix build order of pem and err to allow for generated pem.h.
9243 *) Fix renumbering bug in X509_NAME_delete_entry().
9246 *) Enhanced the err-ins.pl script so it makes the error library number
9247 global and can add a library name. This is needed for external ASN1 and
9248 other error libraries.
9251 *) Fixed sk_insert which never worked properly.
9254 *) Fix ASN1 macros so they can handle indefinite length construted
9255 EXPLICIT tags. Some non standard certificates use these: they can now
9259 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9260 into a single doc/ssleay.txt bundle. This way the information is still
9261 preserved but no longer messes up this directory. Now it's new room for
9262 the new set of documenation files.
9263 [Ralf S. Engelschall]
9265 *) SETs were incorrectly DER encoded. This was a major pain, because they
9266 shared code with SEQUENCEs, which aren't coded the same. This means that
9267 almost everything to do with SETs or SEQUENCEs has either changed name or
9268 number of arguments.
9269 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9271 *) Fix test data to work with the above.
9274 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9275 was already fixed by Eric for 0.9.1 it seems.
9276 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9278 *) Autodetect FreeBSD3.
9281 *) Fix various bugs in Configure. This affects the following platforms:
9285 unixware-2.0-pentium
9289 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9290 before they are needed.
9293 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9297 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9299 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9300 changed SSLeay to OpenSSL in version strings.
9301 [Ralf S. Engelschall]
9303 *) Some fixups to the top-level documents.
9306 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9307 because the symlink to include/ was missing.
9308 [Ralf S. Engelschall]
9310 *) Incorporated the popular no-RSA/DSA-only patches
9311 which allow to compile a RSA-free SSLeay.
9312 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9314 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9315 when "ssleay" is still not found.
9316 [Ralf S. Engelschall]
9318 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9319 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9321 *) Updated the README file.
9322 [Ralf S. Engelschall]
9324 *) Added various .cvsignore files in the CVS repository subdirs
9325 to make a "cvs update" really silent.
9326 [Ralf S. Engelschall]
9328 *) Recompiled the error-definition header files and added
9329 missing symbols to the Win32 linker tables.
9330 [Ralf S. Engelschall]
9332 *) Cleaned up the top-level documents;
9333 o new files: CHANGES and LICENSE
9334 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9335 o merged COPYRIGHT into LICENSE
9336 o removed obsolete TODO file
9337 o renamed MICROSOFT to INSTALL.W32
9338 [Ralf S. Engelschall]
9340 *) Removed dummy files from the 0.9.1b source tree:
9341 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9342 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9343 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9344 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9345 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9346 [Ralf S. Engelschall]
9348 *) Added various platform portability fixes.
9351 *) The Genesis of the OpenSSL rpject:
9352 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9353 Young and Tim J. Hudson created while they were working for C2Net until
9355 [The OpenSSL Project]
9358 Changes between 0.9.0b and 0.9.1b [not released]
9360 *) Updated a few CA certificates under certs/
9363 *) Changed some BIGNUM api stuff.
9366 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9367 DGUX x86, Linux Alpha, etc.
9370 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9371 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9375 *) Add -strparse option to asn1pars program which parses nested
9377 [Dr Stephen Henson <shenson@bigfoot.com>]
9379 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9382 *) DSA fix for "ca" program.
9385 *) Added "-genkey" option to "dsaparam" program.
9388 *) Added RIPE MD160 (rmd160) message digest.
9391 *) Added -a (all) option to "ssleay version" command.
9394 *) Added PLATFORM define which is the id given to Configure.
9397 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9400 *) Extended the ASN.1 parser routines.
9403 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9406 *) Added a BN_CTX to the BN library.
9409 *) Fixed the weak key values in DES library
9412 *) Changed API in EVP library for cipher aliases.
9415 *) Added support for RC2/64bit cipher.
9418 *) Converted the lhash library to the crypto/mem.c functions.
9421 *) Added more recognized ASN.1 object ids.
9424 *) Added more RSA padding checks for SSL/TLS.
9427 *) Added BIO proxy/filter functionality.
9430 *) Added extra_certs to SSL_CTX which can be used
9431 send extra CA certificates to the client in the CA cert chain sending
9432 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9435 *) Now Fortezza is denied in the authentication phase because
9436 this is key exchange mechanism is not supported by SSLeay at all.
9439 *) Additional PKCS1 checks.
9442 *) Support the string "TLSv1" for all TLS v1 ciphers.
9445 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9446 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9449 *) Fixed a few memory leaks.
9452 *) Fixed various code and comment typos.
9455 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9456 bytes sent in the client random.
9457 [Edward Bishop <ebishop@spyglass.com>]