5 Changes between 1.0.0d and 1.0.0e [xx XXX xxxx]
9 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
11 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
12 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
14 *) Fix bug in string printing code: if *any* escaping is enabled we must
15 escape the escape character (backslash) or the resulting string is
19 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
21 *) Disable code workaround for ancient and obsolete Netscape browsers
22 and servers: an attacker can use it in a ciphersuite downgrade attack.
23 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
26 *) Fixed J-PAKE implementation error, originally discovered by
27 Sebastien Martini, further info and confirmation from Stefan
28 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
31 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
33 *) Fix extension code to avoid race conditions which can result in a buffer
34 overrun vulnerability: resumed sessions must not be modified as they can
35 be shared by multiple threads. CVE-2010-3864
38 *) Fix WIN32 build system to correctly link an ENGINE directory into
42 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
44 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
46 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
48 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
50 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
51 context. The operation can be customised via the ctrl mechanism in
52 case ENGINEs want to include additional functionality.
55 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
58 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
59 output hashes compatible with older versions of OpenSSL.
60 [Willy Weisz <weisz@vcpc.univie.ac.at>]
62 *) Fix compression algorithm handling: if resuming a session use the
63 compression algorithm of the resumed session instead of determining
64 it from client hello again. Don't allow server to change algorithm.
67 *) Add load_crls() function to apps tidying load_certs() too. Add option
68 to verify utility to allow additional CRLs to be included.
71 *) Update OCSP request code to permit adding custom headers to the request:
72 some responders need this.
75 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
77 [Julia Lawall <julia@diku.dk>]
79 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
80 needlessly dereferenced structures, used obsolete functions and
81 didn't handle all updated verify codes correctly.
84 *) Disable MD2 in the default configuration.
87 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
88 indicate the initial BIO being pushed or popped. This makes it possible
89 to determine whether the BIO is the one explicitly called or as a result
90 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
91 it handles reference counts correctly and doesn't zero out the I/O bio
92 when it is not being explicitly popped. WARNING: applications which
93 included workarounds for the old buggy behaviour will need to be modified
94 or they could free up already freed BIOs.
97 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
98 renaming to all platforms (within the 0.9.8 branch, this was
99 done conditionally on Netware platforms to avoid a name clash).
100 [Guenter <lists@gknw.net>]
102 *) Add ECDHE and PSK support to DTLS.
103 [Michael Tuexen <tuexen@fh-muenster.de>]
105 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
109 *) Add "missing" function EVP_MD_flags() (without this the only way to
110 retrieve a digest flags is by accessing the structure directly. Update
111 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
112 or cipher is registered as in the "from" argument. Print out all
113 registered digests in the dgst usage message instead of manually
114 attempting to work them out.
117 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
118 this allows the use of compression and extensions. Change default cipher
119 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
120 by default unless an application cipher string requests it.
123 *) Alter match criteria in PKCS12_parse(). It used to try to use local
124 key ids to find matching certificates and keys but some PKCS#12 files
125 don't follow the (somewhat unwritten) rules and this strategy fails.
126 Now just gather all certificates together and the first private key
127 then look for the first certificate that matches the key.
130 *) Support use of registered digest and cipher names for dgst and cipher
131 commands instead of having to add each one as a special case. So now
138 openssl dgst -sha256 foo
140 and this works for ENGINE based algorithms too.
144 *) Update Gost ENGINE to support parameter files.
145 [Victor B. Wagner <vitus@cryptocom.ru>]
147 *) Support GeneralizedTime in ca utility.
148 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
150 *) Enhance the hash format used for certificate directory links. The new
151 form uses the canonical encoding (meaning equivalent names will work
152 even if they aren't identical) and uses SHA1 instead of MD5. This form
153 is incompatible with the older format and as a result c_rehash should
154 be used to rebuild symbolic links.
157 *) Make PKCS#8 the default write format for private keys, replacing the
158 traditional format. This form is standardised, more secure and doesn't
159 include an implicit MD5 dependency.
162 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
163 committed to OpenSSL should pass this lot as a minimum.
166 *) Add session ticket override functionality for use by EAP-FAST.
167 [Jouni Malinen <j@w1.fi>]
169 *) Modify HMAC functions to return a value. Since these can be implemented
170 in an ENGINE errors can occur.
173 *) Type-checked OBJ_bsearch_ex.
176 *) Type-checked OBJ_bsearch. Also some constification necessitated
177 by type-checking. Still to come: TXT_DB, bsearch(?),
178 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
182 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
183 seconds to a tm structure directly, instead of going through OS
184 specific date routines. This avoids any issues with OS routines such
185 as the year 2038 bug. New *_adj() functions for ASN1 time structures
186 and X509_time_adj_ex() to cover the extended range. The existing
187 X509_time_adj() is still usable and will no longer have any date issues.
190 *) Delta CRL support. New use deltas option which will attempt to locate
191 and search any appropriate delta CRLs available.
193 This work was sponsored by Google.
196 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
197 code and add additional score elements. Validate alternate CRL paths
198 as part of the CRL checking and indicate a new error "CRL path validation
199 error" in this case. Applications wanting additional details can use
200 the verify callback and check the new "parent" field. If this is not
201 NULL CRL path validation is taking place. Existing applications wont
202 see this because it requires extended CRL support which is off by
205 This work was sponsored by Google.
208 *) Support for freshest CRL extension.
210 This work was sponsored by Google.
213 *) Initial indirect CRL support. Currently only supported in the CRLs
214 passed directly and not via lookup. Process certificate issuer
215 CRL entry extension and lookup CRL entries by bother issuer name
216 and serial number. Check and process CRL issuer entry in IDP extension.
218 This work was sponsored by Google.
221 *) Add support for distinct certificate and CRL paths. The CRL issuer
222 certificate is validated separately in this case. Only enabled if
223 an extended CRL support flag is set: this flag will enable additional
224 CRL functionality in future.
226 This work was sponsored by Google.
229 *) Add support for policy mappings extension.
231 This work was sponsored by Google.
234 *) Fixes to pathlength constraint, self issued certificate handling,
235 policy processing to align with RFC3280 and PKITS tests.
237 This work was sponsored by Google.
240 *) Support for name constraints certificate extension. DN, email, DNS
241 and URI types are currently supported.
243 This work was sponsored by Google.
246 *) To cater for systems that provide a pointer-based thread ID rather
247 than numeric, deprecate the current numeric thread ID mechanism and
248 replace it with a structure and associated callback type. This
249 mechanism allows a numeric "hash" to be extracted from a thread ID in
250 either case, and on platforms where pointers are larger than 'long',
251 mixing is done to help ensure the numeric 'hash' is usable even if it
252 can't be guaranteed unique. The default mechanism is to use "&errno"
253 as a pointer-based thread ID to distinguish between threads.
255 Applications that want to provide their own thread IDs should now use
256 CRYPTO_THREADID_set_callback() to register a callback that will call
257 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
259 Note that ERR_remove_state() is now deprecated, because it is tied
260 to the assumption that thread IDs are numeric. ERR_remove_state(0)
261 to free the current thread's error state should be replaced by
262 ERR_remove_thread_state(NULL).
264 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
265 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
266 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
267 application was previously providing a numeric thread callback that
268 was inappropriate for distinguishing threads, then uniqueness might
269 have been obtained with &errno that happened immediately in the
270 intermediate development versions of OpenSSL; this is no longer the
271 case, the numeric thread callback will now override the automatic use
273 [Geoff Thorpe, with help from Bodo Moeller]
275 *) Initial support for different CRL issuing certificates. This covers a
276 simple case where the self issued certificates in the chain exist and
277 the real CRL issuer is higher in the existing chain.
279 This work was sponsored by Google.
282 *) Removed effectively defunct crypto/store from the build.
285 *) Revamp of STACK to provide stronger type-checking. Still to come:
286 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
287 ASN1_STRING, CONF_VALUE.
290 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
291 RAM on SSL connections. This option can save about 34k per idle SSL.
294 *) Revamp of LHASH to provide stronger type-checking. Still to come:
295 STACK, TXT_DB, bsearch, qsort.
298 *) Initial support for Cryptographic Message Syntax (aka CMS) based
299 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
300 support for data, signedData, compressedData, digestedData and
301 encryptedData, envelopedData types included. Scripts to check against
302 RFC4134 examples draft and interop and consistency checks of many
303 content types and variants.
306 *) Add options to enc utility to support use of zlib compression BIO.
309 *) Extend mk1mf to support importing of options and assembly language
310 files from Configure script, currently only included in VC-WIN32.
311 The assembly language rules can now optionally generate the source
312 files from the associated perl scripts.
315 *) Implement remaining functionality needed to support GOST ciphersuites.
316 Interop testing has been performed using CryptoPro implementations.
317 [Victor B. Wagner <vitus@cryptocom.ru>]
319 *) s390x assembler pack.
322 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
326 *) Implement Opaque PRF Input TLS extension as specified in
327 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
328 official specification yet and no extension type assignment by
329 IANA exists, this extension (for now) will have to be explicitly
330 enabled when building OpenSSL by providing the extension number
331 to use. For example, specify an option
333 -DTLSEXT_TYPE_opaque_prf_input=0x9527
335 to the "config" or "Configure" script to enable the extension,
336 assuming extension number 0x9527 (which is a completely arbitrary
337 and unofficial assignment based on the MD5 hash of the Internet
338 Draft). Note that by doing so, you potentially lose
339 interoperability with other TLS implementations since these might
340 be using the same extension number for other purposes.
342 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
343 opaque PRF input value to use in the handshake. This will create
344 an interal copy of the length-'len' string at 'src', and will
345 return non-zero for success.
347 To get more control and flexibility, provide a callback function
350 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
351 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
355 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
358 Callback function 'cb' will be called in handshakes, and is
359 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
360 Argument 'arg' is for application purposes (the value as given to
361 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
362 be provided to the callback function). The callback function
363 has to return non-zero to report success: usually 1 to use opaque
364 PRF input just if possible, or 2 to enforce use of the opaque PRF
365 input. In the latter case, the library will abort the handshake
366 if opaque PRF input is not successfully negotiated.
368 Arguments 'peerinput' and 'len' given to the callback function
369 will always be NULL and 0 in the case of a client. A server will
370 see the client's opaque PRF input through these variables if
371 available (NULL and 0 otherwise). Note that if the server
372 provides an opaque PRF input, the length must be the same as the
373 length of the client's opaque PRF input.
375 Note that the callback function will only be called when creating
376 a new session (session resumption can resume whatever was
377 previously negotiated), and will not be called in SSL 2.0
378 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
379 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
380 for applications that need to enforce opaque PRF input.
384 *) Update ssl code to support digests other than SHA1+MD5 for handshake
387 [Victor B. Wagner <vitus@cryptocom.ru>]
389 *) Add RFC4507 support to OpenSSL. This includes the corrections in
390 RFC4507bis. The encrypted ticket format is an encrypted encoded
391 SSL_SESSION structure, that way new session features are automatically
394 If a client application caches session in an SSL_SESSION structure
395 support is transparent because tickets are now stored in the encoded
398 The SSL_CTX structure automatically generates keys for ticket
399 protection in servers so again support should be possible
400 with no application modification.
402 If a client or server wishes to disable RFC4507 support then the option
403 SSL_OP_NO_TICKET can be set.
405 Add a TLS extension debugging callback to allow the contents of any client
406 or server extensions to be examined.
408 This work was sponsored by Google.
411 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
412 OpenSSL should now compile cleanly on gcc 4.2
413 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
415 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
416 support including streaming MAC support: this is required for GOST
418 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
420 *) Add option -stream to use PKCS#7 streaming in smime utility. New
421 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
422 to output in BER and PEM format.
425 *) Experimental support for use of HMAC via EVP_PKEY interface. This
426 allows HMAC to be handled via the EVP_DigestSign*() interface. The
427 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
428 ENGINE support for HMAC keys which are unextractable. New -mac and
429 -macopt options to dgst utility.
432 *) New option -sigopt to dgst utility. Update dgst to use
433 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
434 alternative signing paramaters such as X9.31 or PSS in the dgst
438 *) Change ssl_cipher_apply_rule(), the internal function that does
439 the work each time a ciphersuite string requests enabling
440 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
441 removing ("!foo+bar") a class of ciphersuites: Now it maintains
442 the order of disabled ciphersuites such that those ciphersuites
443 that most recently went from enabled to disabled not only stay
444 in order with respect to each other, but also have higher priority
445 than other disabled ciphersuites the next time ciphersuites are
448 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
449 the same ciphersuites as with "HIGH" alone, but in a specific
450 order where the PSK ciphersuites come first (since they are the
451 most recently disabled ciphersuites when "HIGH" is parsed).
453 Also, change ssl_create_cipher_list() (using this new
454 funcionality) such that between otherwise identical
455 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
459 *) Change ssl_create_cipher_list() so that it automatically
460 arranges the ciphersuites in reasonable order before starting
461 to process the rule string. Thus, the definition for "DEFAULT"
462 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
463 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
464 This makes it much easier to arrive at a reasonable default order
465 in applications for which anonymous ciphers are OK (meaning
466 that you can't actually use DEFAULT).
467 [Bodo Moeller; suggested by Victor Duchovni]
469 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
470 processing) into multiple integers instead of setting
471 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
472 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
473 (These masks as well as the individual bit definitions are hidden
474 away into the non-exported interface ssl/ssl_locl.h, so this
475 change to the definition of the SSL_CIPHER structure shouldn't
476 affect applications.) This give us more bits for each of these
477 categories, so there is no longer a need to coagulate AES128 and
478 AES256 into a single algorithm bit, and to coagulate Camellia128
479 and Camellia256 into a single algorithm bit, which has led to all
482 Thus, among other things, the kludge introduced in 0.9.7m and
483 0.9.8e for masking out AES256 independently of AES128 or masking
484 out Camellia256 independently of AES256 is not needed here in 0.9.9.
486 With the change, we also introduce new ciphersuite aliases that
487 so far were missing: "AES128", "AES256", "CAMELLIA128", and
491 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
492 Use the leftmost N bytes of the signature input if the input is
493 larger than the prime q (with N being the size in bytes of q).
496 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
497 it yet and it is largely untested.
500 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
503 *) Initial incomplete changes to avoid need for function casts in OpenSSL
504 some compilers (gcc 4.2 and later) reject their use. Safestack is
505 reimplemented. Update ASN1 to avoid use of legacy functions.
508 *) Win32/64 targets are linked with Winsock2.
511 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
512 to external functions. This can be used to increase CRL handling
513 efficiency especially when CRLs are very large by (for example) storing
514 the CRL revoked certificates in a database.
517 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
518 new CRLs added to a directory can be used. New command line option
519 -verify_return_error to s_client and s_server. This causes real errors
520 to be returned by the verify callback instead of carrying on no matter
521 what. This reflects the way a "real world" verify callback would behave.
524 *) GOST engine, supporting several GOST algorithms and public key formats.
525 Kindly donated by Cryptocom.
528 *) Partial support for Issuing Distribution Point CRL extension. CRLs
529 partitioned by DP are handled but no indirect CRL or reason partitioning
530 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
531 selected via a scoring technique which handles IDP and AKID in CRLs.
534 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
535 will ultimately be used for all verify operations: this will remove the
536 X509_STORE dependency on certificate verification and allow alternative
537 lookup methods. X509_STORE based implementations of these two callbacks.
540 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
541 Modify get_crl() to find a valid (unexpired) CRL if possible.
544 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
545 this would be called X509_CRL_cmp() but that name is already used by
546 a function that just compares CRL issuer names. Cache several CRL
547 extensions in X509_CRL structure and cache CRLDP in X509.
550 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
551 this maps equivalent X509_NAME structures into a consistent structure.
552 Name comparison can then be performed rapidly using memcmp().
555 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
559 *) Allow digests to supply their own micalg string for S/MIME type using
560 the ctrl EVP_MD_CTRL_MICALG.
563 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
564 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
565 ctrl. It can then customise the structure before and/or after signing
569 *) New function OBJ_add_sigid() to allow application defined signature OIDs
570 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
571 to free up any added signature OIDs.
574 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
575 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
576 digest and cipher tables. New options added to openssl utility:
577 list-message-digest-algorithms and list-cipher-algorithms.
580 *) Change the array representation of binary polynomials: the list
581 of degrees of non-zero coefficients is now terminated with -1.
582 Previously it was terminated with 0, which was also part of the
583 value; thus, the array representation was not applicable to
584 polynomials where t^0 has coefficient zero. This change makes
585 the array representation useful in a more general context.
588 *) Various modifications and fixes to SSL/TLS cipher string
589 handling. For ECC, the code now distinguishes between fixed ECDH
590 with RSA certificates on the one hand and with ECDSA certificates
591 on the other hand, since these are separate ciphersuites. The
592 unused code for Fortezza ciphersuites has been removed.
594 For consistency with EDH, ephemeral ECDH is now called "EECDH"
595 (not "ECDHE"). For consistency with the code for DH
596 certificates, use of ECDH certificates is now considered ECDH
597 authentication, not RSA or ECDSA authentication (the latter is
598 merely the CA's signing algorithm and not actively used in the
601 The temporary ciphersuite alias "ECCdraft" is no longer
602 available, and ECC ciphersuites are no longer excluded from "ALL"
603 and "DEFAULT". The following aliases now exist for RFC 4492
604 ciphersuites, most of these by analogy with the DH case:
606 kECDHr - ECDH cert, signed with RSA
607 kECDHe - ECDH cert, signed with ECDSA
608 kECDH - ECDH cert (signed with either RSA or ECDSA)
609 kEECDH - ephemeral ECDH
610 ECDH - ECDH cert or ephemeral ECDH
616 AECDH - anonymous ECDH
617 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
621 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
622 Use correct micalg parameters depending on digest(s) in signed message.
625 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
626 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
629 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
630 an engine to register a method. Add ENGINE lookups for methods and
631 functional reference processing.
634 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
635 EVP_{Sign,Verify}* which allow an application to customise the signature
639 *) New -resign option to smime utility. This adds one or more signers
640 to an existing PKCS#7 signedData structure. Also -md option to use an
641 alternative message digest algorithm for signing.
644 *) Tidy up PKCS#7 routines and add new functions to make it easier to
645 create PKCS7 structures containing multiple signers. Update smime
646 application to support multiple signers.
649 *) New -macalg option to pkcs12 utility to allow setting of an alternative
653 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
654 Reorganize PBE internals to lookup from a static table using NIDs,
655 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
656 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
657 PRF which will be automatically used with PBES2.
660 *) Replace the algorithm specific calls to generate keys in "req" with the
664 *) Update PKCS#7 enveloped data routines to use new API. This is now
665 supported by any public key method supporting the encrypt operation. A
666 ctrl is added to allow the public key algorithm to examine or modify
667 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
671 *) Add a ctrl to asn1 method to allow a public key algorithm to express
672 a default digest type to use. In most cases this will be SHA1 but some
673 algorithms (such as GOST) need to specify an alternative digest. The
674 return value indicates how strong the prefernce is 1 means optional and
675 2 is mandatory (that is it is the only supported type). Modify
676 ASN1_item_sign() to accept a NULL digest argument to indicate it should
677 use the default md. Update openssl utilities to use the default digest
678 type for signing if it is not explicitly indicated.
681 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
682 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
683 signing method from the key type. This effectively removes the link
684 between digests and public key types.
687 *) Add an OID cross reference table and utility functions. Its purpose is to
688 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
689 rsaEncryption. This will allow some of the algorithm specific hackery
690 needed to use the correct OID to be removed.
693 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
694 structures for PKCS7_sign(). They are now set up by the relevant public
698 *) Add provisional EC pkey method with support for ECDSA and ECDH.
701 *) Add support for key derivation (agreement) in the API, DH method and
705 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
706 public and private key formats. As a side effect these add additional
707 command line functionality not previously available: DSA signatures can be
708 generated and verified using pkeyutl and DH key support and generation in
713 [Oliver Tappe <zooey@hirschkaefer.de>]
715 *) New make target "install_html_docs" installs HTML renditions of the
717 [Oliver Tappe <zooey@hirschkaefer.de>]
719 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
720 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
721 support key and parameter generation and add initial key generation
722 functionality for RSA.
725 *) Add functions for main EVP_PKEY_method operations. The undocumented
726 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
727 EVP_PKEY_{encrypt,decrypt}_old.
730 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
731 key API, doesn't do much yet.
734 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
735 public key algorithms. New option to openssl utility:
736 "list-public-key-algorithms" to print out info.
739 *) Implement the Supported Elliptic Curves Extension for
740 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
743 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
744 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
747 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
748 utilities such as rsa, dsa, dsaparam etc except they process any key
752 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
753 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
754 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
758 *) Initial support for pluggable public key ASN1.
759 De-spaghettify the public key ASN1 handling. Move public and private
760 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
761 algorithm specific handling to a single module within the relevant
762 algorithm directory. Add functions to allow (near) opaque processing
763 of public and private key structures.
766 *) Implement the Supported Point Formats Extension for
767 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
770 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
771 for the psk identity [hint] and the psk callback functions to the
772 SSL_SESSION, SSL and SSL_CTX structure.
775 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
779 SSL_CTX_use_psk_identity_hint
780 SSL_get_psk_identity_hint
782 SSL_use_psk_identity_hint
784 [Mika Kousa and Pasi Eronen of Nokia Corporation]
786 *) Add RFC 3161 compliant time stamp request creation, response generation
787 and response verification functionality.
788 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
790 *) Add initial support for TLS extensions, specifically for the server_name
791 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
792 have new members for a host name. The SSL data structure has an
793 additional member SSL_CTX *initial_ctx so that new sessions can be
794 stored in that context to allow for session resumption, even after the
795 SSL has been switched to a new SSL_CTX in reaction to a client's
796 server_name extension.
798 New functions (subject to change):
801 SSL_get_servername_type()
804 New CTRL codes and macros (subject to change):
806 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
807 - SSL_CTX_set_tlsext_servername_callback()
808 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
809 - SSL_CTX_set_tlsext_servername_arg()
810 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
812 openssl s_client has a new '-servername ...' option.
814 openssl s_server has new options '-servername_host ...', '-cert2 ...',
815 '-key2 ...', '-servername_fatal' (subject to change). This allows
816 testing the HostName extension for a specific single host name ('-cert'
817 and '-key' remain fallbacks for handshakes without HostName
818 negotiation). If the unrecogninzed_name alert has to be sent, this by
819 default is a warning; it becomes fatal with the '-servername_fatal'
822 [Peter Sylvester, Remy Allais, Christophe Renou]
824 *) Whirlpool hash implementation is added.
827 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
828 bn(64,32). Because of instruction set limitations it doesn't have
829 any negative impact on performance. This was done mostly in order
830 to make it possible to share assembler modules, such as bn_mul_mont
831 implementations, between 32- and 64-bit builds without hassle.
834 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
835 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
839 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
840 dedicated Montgomery multiplication procedure, is introduced.
841 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
842 "64-bit" performance on certain 32-bit targets.
845 *) New option SSL_OP_NO_COMP to disable use of compression selectively
846 in SSL structures. New SSL ctrl to set maximum send fragment size.
847 Save memory by seeting the I/O buffer sizes dynamically instead of
848 using the maximum available value.
851 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
852 in addition to the text details.
855 *) Very, very preliminary EXPERIMENTAL support for printing of general
856 ASN1 structures. This currently produces rather ugly output and doesn't
857 handle several customised structures at all.
860 *) Integrated support for PVK file format and some related formats such
861 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
862 these in the 'rsa' and 'dsa' utilities.
865 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
868 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
869 place for the (very old) "NETSCAPE" format certificates which are now
870 handled using new ASN1 code equivalents.
873 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
874 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
875 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
878 *) Modify CRL distribution points extension code to print out previously
879 unsupported fields. Enhance extension setting code to allow setting of
883 *) Add print and set support for Issuing Distribution Point CRL extension.
886 *) Change 'Configure' script to enable Camellia by default.
889 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
891 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
892 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
894 *) Fix bug in string printing code: if *any* escaping is enabled we must
895 escape the escape character (backslash) or the resulting string is
899 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
901 *) Disable code workaround for ancient and obsolete Netscape browsers
902 and servers: an attacker can use it in a ciphersuite downgrade attack.
903 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
906 *) Fixed J-PAKE implementation error, originally discovered by
907 Sebastien Martini, further info and confirmation from Stefan
908 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
911 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
913 *) Fix extension code to avoid race conditions which can result in a buffer
914 overrun vulnerability: resumed sessions must not be modified as they can
915 be shared by multiple threads. CVE-2010-3864
918 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
921 *) Don't reencode certificate when calculating signature: cache and use
922 the original encoding instead. This makes signature verification of
923 some broken encodings work correctly.
926 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
927 is also one of the inputs.
928 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
930 *) Don't repeatedly append PBE algorithms to table if they already exist.
931 Sort table on each new add. This effectively makes the table read only
932 after all algorithms are added and subsequent calls to PKCS12_pbe_add
936 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
938 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
941 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
942 access or freeing data twice (CVE-2010-0742)
943 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
945 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
946 common in certificates and some applications which only call
947 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
951 Reduce copying into .apps and .test in makevms.com
952 Don't try to use blank CA certificate in CA.com
953 Allow use of C files from original directories in maketests.com
954 [Steven M. Schweda" <sms@antinode.info>]
956 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
958 *) When rejecting SSL/TLS records due to an incorrect version number, never
959 update s->server with a new major version number. As of
960 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
961 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
962 the previous behavior could result in a read attempt at NULL when
963 receiving specific incorrect SSL/TLS records once record payload
964 protection is active. (CVE-2010-0740)
965 [Bodo Moeller, Adam Langley <agl@chromium.org>]
967 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
968 could be crashed if the relevant tables were not present (e.g. chrooted).
969 [Tomas Hoger <thoger@redhat.com>]
971 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
973 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
974 [Martin Olsson, Neel Mehta]
976 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
977 accommodate for stack sorting, always a write lock!).
980 *) On some versions of WIN32 Heap32Next is very slow. This can cause
981 excessive delays in the RAND_poll(): over a minute. As a workaround
982 include a time check in the inner Heap32Next loop too.
985 *) The code that handled flushing of data in SSL/TLS originally used the
986 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
987 the problem outlined in PR#1949. The fix suggested there however can
988 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
989 of Apache). So instead simplify the code to flush unconditionally.
990 This should be fine since flushing with no data to flush is a no op.
993 *) Handle TLS versions 2.0 and later properly and correctly use the
994 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
995 off ancient servers have a habit of sticking around for a while...
998 *) Modify compression code so it frees up structures without using the
999 ex_data callbacks. This works around a problem where some applications
1000 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1001 restarting) then use compression (e.g. SSL with compression) later.
1002 This results in significant per-connection memory leaks and
1003 has caused some security issues including CVE-2008-1678 and
1007 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1008 change when encrypting or decrypting.
1011 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1012 connect and renegotiate with servers which do not support RI.
1013 Until RI is more widely deployed this option is enabled by default.
1016 *) Add "missing" ssl ctrls to clear options and mode.
1019 *) If client attempts to renegotiate and doesn't support RI respond with
1020 a no_renegotiation alert as required by RFC5746. Some renegotiating
1021 TLS clients will continue a connection gracefully when they receive
1022 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1023 waiting for a server hello which it will never receive. Now we treat a
1024 received no_renegotiation alert as a fatal error. This is because
1025 applications requesting a renegotiation might well expect it to succeed
1026 and would have no code in place to handle the server denying it so the
1027 only safe thing to do is to terminate the connection.
1030 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1031 peer supports secure renegotiation and 0 otherwise. Print out peer
1032 renegotiation support in s_client/s_server.
1035 *) Replace the highly broken and deprecated SPKAC certification method with
1036 the updated NID creation version. This should correctly handle UTF8.
1039 *) Implement RFC5746. Re-enable renegotiation but require the extension
1040 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1041 turns out to be a bad idea. It has been replaced by
1042 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1043 SSL_CTX_set_options(). This is really not recommended unless you
1044 know what you are doing.
1045 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1047 *) Fixes to stateless session resumption handling. Use initial_ctx when
1048 issuing and attempting to decrypt tickets in case it has changed during
1049 servername handling. Use a non-zero length session ID when attempting
1050 stateless session resumption: this makes it possible to determine if
1051 a resumption has occurred immediately after receiving server hello
1052 (several places in OpenSSL subtly assume this) instead of later in
1056 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1057 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1058 fixes for a few places where the return code is not checked
1060 [Julia Lawall <julia@diku.dk>]
1062 *) Add --strict-warnings option to Configure script to include devteam
1063 warnings in other configurations.
1066 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1067 makes it possible to install openssl libraries in locations which
1068 have names other than "lib", for example "/usr/lib64" which some
1070 [Steve Henson, based on patch from Jeremy Utley]
1072 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1073 X690 8.9.12 and can produce some misleading textual output of OIDs.
1074 [Steve Henson, reported by Dan Kaminsky]
1076 *) Delete MD2 from algorithm tables. This follows the recommendation in
1077 several standards that it is not used in new applications due to
1078 several cryptographic weaknesses. For binary compatibility reasons
1079 the MD2 API is still compiled in by default.
1082 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1086 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1087 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1089 [Guenter <lists@gknw.net>]
1091 *) Fix the server certificate chain building code to use X509_verify_cert(),
1092 it used to have an ad-hoc builder which was unable to cope with anything
1093 other than a simple chain.
1094 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1096 *) Don't check self signed certificate signatures in X509_verify_cert()
1097 by default (a flag can override this): it just wastes time without
1098 adding any security. As a useful side effect self signed root CAs
1099 with non-FIPS digests are now usable in FIPS mode.
1102 *) In dtls1_process_out_of_seq_message() the check if the current message
1103 is already buffered was missing. For every new message was memory
1104 allocated, allowing an attacker to perform an denial of service attack
1105 with sending out of seq handshake messages until there is no memory
1106 left. Additionally every future messege was buffered, even if the
1107 sequence number made no sense and would be part of another handshake.
1108 So only messages with sequence numbers less than 10 in advance will be
1109 buffered. (CVE-2009-1378)
1110 [Robin Seggelmann, discovered by Daniel Mentz]
1112 *) Records are buffered if they arrive with a future epoch to be
1113 processed after finishing the corresponding handshake. There is
1114 currently no limitation to this buffer allowing an attacker to perform
1115 a DOS attack with sending records with future epochs until there is no
1116 memory left. This patch adds the pqueue_size() function to detemine
1117 the size of a buffer and limits the record buffer to 100 entries.
1119 [Robin Seggelmann, discovered by Daniel Mentz]
1121 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1122 parent structure is freed. (CVE-2009-1379)
1125 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1126 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1129 [Ilya O. <vrghost@gmail.com>]
1131 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1133 *) Disable renegotiation completely - this fixes a severe security
1134 problem (CVE-2009-3555) at the cost of breaking all
1135 renegotiation. Renegotiation can be re-enabled by setting
1136 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1137 run-time. This is really not recommended unless you know what
1141 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1143 *) Don't set val to NULL when freeing up structures, it is freed up by
1144 underlying code. If sizeof(void *) > sizeof(long) this can result in
1145 zeroing past the valid field. (CVE-2009-0789)
1146 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1148 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1149 checked correctly. This would allow some invalid signed attributes to
1150 appear to verify correctly. (CVE-2009-0591)
1151 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1153 *) Reject UniversalString and BMPString types with invalid lengths. This
1154 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1155 a legal length. (CVE-2009-0590)
1158 *) Set S/MIME signing as the default purpose rather than setting it
1159 unconditionally. This allows applications to override it at the store
1163 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1164 to handle some structures.
1167 *) Improve efficiency of mem_gets: don't search whole buffer each time
1169 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1171 *) New -hex option for openssl rand.
1174 *) Print out UTF8String and NumericString when parsing ASN1.
1177 *) Support NumericString type for name components.
1180 *) Allow CC in the environment to override the automatically chosen
1181 compiler. Note that nothing is done to ensure flags work with the
1185 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1187 *) Properly check EVP_VerifyFinal() and similar return values
1189 [Ben Laurie, Bodo Moeller, Google Security Team]
1191 *) Enable TLS extensions by default.
1194 *) Allow the CHIL engine to be loaded, whether the application is
1195 multithreaded or not. (This does not release the developer from the
1196 obligation to set up the dynamic locking callbacks.)
1197 [Sander Temme <sander@temme.net>]
1199 *) Use correct exit code if there is an error in dgst command.
1200 [Steve Henson; problem pointed out by Roland Dirlewanger]
1202 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1203 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1206 *) Add experimental JPAKE support, including demo authentication in
1207 s_client and s_server.
1210 *) Set the comparison function in v3_addr_canonize().
1211 [Rob Austein <sra@hactrn.net>]
1213 *) Add support for XMPP STARTTLS in s_client.
1214 [Philip Paeps <philip@freebsd.org>]
1216 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1217 to ensure that even with this option, only ciphersuites in the
1218 server's preference list will be accepted. (Note that the option
1219 applies only when resuming a session, so the earlier behavior was
1220 just about the algorithm choice for symmetric cryptography.)
1223 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1225 *) Fix NULL pointer dereference if a DTLS server received
1226 ChangeCipherSpec as first record (CVE-2009-1386).
1229 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1230 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1233 *) The fix in 0.9.8c that supposedly got rid of unsafe
1234 double-checked locking was incomplete for RSA blinding,
1235 addressing just one layer of what turns out to have been
1236 doubly unsafe triple-checked locking.
1238 So now fix this for real by retiring the MONT_HELPER macro
1239 in crypto/rsa/rsa_eay.c.
1241 [Bodo Moeller; problem pointed out by Marius Schilder]
1243 *) Various precautionary measures:
1245 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1247 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1248 (NB: This would require knowledge of the secret session ticket key
1249 to exploit, in which case you'd be SOL either way.)
1251 - Change bn_nist.c so that it will properly handle input BIGNUMs
1252 outside the expected range.
1254 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1257 [Neel Mehta, Bodo Moeller]
1259 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1260 the load fails. Useful for distros.
1261 [Ben Laurie and the FreeBSD team]
1263 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1266 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1269 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1271 This work was sponsored by Logica.
1274 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1275 keystores. Support for SSL/TLS client authentication too.
1276 Not compiled unless enable-capieng specified to Configure.
1278 This work was sponsored by Logica.
1281 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1282 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1283 attribute creation routines such as certifcate requests and PKCS#12
1287 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1289 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1290 handshake which could lead to a cilent crash as found using the
1291 Codenomicon TLS test suite (CVE-2008-1672)
1292 [Steve Henson, Mark Cox]
1294 *) Fix double free in TLS server name extensions which could lead to
1295 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1298 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1300 Clear the error queue to ensure that error entries left from
1301 older function calls do not interfere with the correct operation.
1302 [Lutz Jaenicke, Erik de Castro Lopo]
1304 *) Remove root CA certificates of commercial CAs:
1306 The OpenSSL project does not recommend any specific CA and does not
1307 have any policy with respect to including or excluding any CA.
1308 Therefore it does not make any sense to ship an arbitrary selection
1309 of root CA certificates with the OpenSSL software.
1312 *) RSA OAEP patches to fix two separate invalid memory reads.
1313 The first one involves inputs when 'lzero' is greater than
1314 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1315 before the beginning of from). The second one involves inputs where
1316 the 'db' section contains nothing but zeroes (there is a one-byte
1317 invalid read after the end of 'db').
1318 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1320 *) Partial backport from 0.9.9-dev:
1322 Introduce bn_mul_mont (dedicated Montgomery multiplication
1323 procedure) as a candidate for BIGNUM assembler implementation.
1324 While 0.9.9-dev uses assembler for various architectures, only
1325 x86_64 is available by default here in the 0.9.8 branch, and
1326 32-bit x86 is available through a compile-time setting.
1328 To try the 32-bit x86 assembler implementation, use Configure
1329 option "enable-montasm" (which exists only for this backport).
1331 As "enable-montasm" for 32-bit x86 disclaims code stability
1332 anyway, in this constellation we activate additional code
1333 backported from 0.9.9-dev for further performance improvements,
1334 namely BN_from_montgomery_word. (To enable this otherwise,
1335 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1337 [Andy Polyakov (backport partially by Bodo Moeller)]
1339 *) Add TLS session ticket callback. This allows an application to set
1340 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1341 values. This is useful for key rollover for example where several key
1342 sets may exist with different names.
1345 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1346 This was broken until now in 0.9.8 releases, such that the only way
1347 a registered ENGINE could be used (assuming it initialises
1348 successfully on the host) was to explicitly set it as the default
1349 for the relevant algorithms. This is in contradiction with 0.9.7
1350 behaviour and the documentation. With this fix, when an ENGINE is
1351 registered into a given algorithm's table of implementations, the
1352 'uptodate' flag is reset so that auto-discovery will be used next
1353 time a new context for that algorithm attempts to select an
1355 [Ian Lister (tweaked by Geoff Thorpe)]
1357 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1358 implemention in the following ways:
1360 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1363 Lack of BER streaming support means one pass streaming processing is
1364 only supported if data is detached: setting the streaming flag is
1365 ignored for embedded content.
1367 CMS support is disabled by default and must be explicitly enabled
1368 with the enable-cms configuration option.
1371 *) Update the GMP engine glue to do direct copies between BIGNUM and
1372 mpz_t when openssl and GMP use the same limb size. Otherwise the
1373 existing "conversion via a text string export" trick is still used.
1374 [Paul Sheer <paulsheer@gmail.com>]
1376 *) Zlib compression BIO. This is a filter BIO which compressed and
1377 uncompresses any data passed through it.
1380 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1381 RFC3394 compatible AES key wrapping.
1384 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1385 sets string data without copying. X509_ALGOR_set0() and
1386 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1387 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1388 from an X509_ATTRIBUTE structure optionally checking it occurs only
1389 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1393 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1394 to get the expected BN_FLG_CONSTTIME behavior.
1395 [Bodo Moeller (Google)]
1399 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1400 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1401 - added some more tests to do_tests.pl
1402 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1403 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1404 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1405 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1406 - various changes to netware.pl to enable gcc-cross builds on Win32
1408 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1409 - various changes to fix missing prototype warnings
1410 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1411 - added AES, WHIRLPOOL and CPUID assembler code to build files
1412 - added missing AES assembler make rules to mk1mf.pl
1413 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1414 [Guenter Knauf <eflash@gmx.net>]
1416 *) Implement certificate status request TLS extension defined in RFC3546.
1417 A client can set the appropriate parameters and receive the encoded
1418 OCSP response via a callback. A server can query the supplied parameters
1419 and set the encoded OCSP response in the callback. Add simplified examples
1420 to s_client and s_server.
1423 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1425 *) Fix various bugs:
1426 + Binary incompatibility of ssl_ctx_st structure
1427 + DTLS interoperation with non-compliant servers
1428 + Don't call get_session_cb() without proposed session
1429 + Fix ia64 assembler code
1430 [Andy Polyakov, Steve Henson]
1432 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1434 *) DTLS Handshake overhaul. There were longstanding issues with
1435 OpenSSL DTLS implementation, which were making it impossible for
1436 RFC 4347 compliant client to communicate with OpenSSL server.
1437 Unfortunately just fixing these incompatibilities would "cut off"
1438 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1439 server keeps tolerating non RFC compliant syntax. The opposite is
1440 not true, 0.9.8f client can not communicate with earlier server.
1441 This update even addresses CVE-2007-4995.
1444 *) Changes to avoid need for function casts in OpenSSL: some compilers
1445 (gcc 4.2 and later) reject their use.
1446 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1449 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1450 RFC4507bis. The encrypted ticket format is an encrypted encoded
1451 SSL_SESSION structure, that way new session features are automatically
1454 If a client application caches session in an SSL_SESSION structure
1455 support is transparent because tickets are now stored in the encoded
1458 The SSL_CTX structure automatically generates keys for ticket
1459 protection in servers so again support should be possible
1460 with no application modification.
1462 If a client or server wishes to disable RFC4507 support then the option
1463 SSL_OP_NO_TICKET can be set.
1465 Add a TLS extension debugging callback to allow the contents of any client
1466 or server extensions to be examined.
1468 This work was sponsored by Google.
1471 *) Add initial support for TLS extensions, specifically for the server_name
1472 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1473 have new members for a host name. The SSL data structure has an
1474 additional member SSL_CTX *initial_ctx so that new sessions can be
1475 stored in that context to allow for session resumption, even after the
1476 SSL has been switched to a new SSL_CTX in reaction to a client's
1477 server_name extension.
1479 New functions (subject to change):
1481 SSL_get_servername()
1482 SSL_get_servername_type()
1485 New CTRL codes and macros (subject to change):
1487 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1488 - SSL_CTX_set_tlsext_servername_callback()
1489 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1490 - SSL_CTX_set_tlsext_servername_arg()
1491 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1493 openssl s_client has a new '-servername ...' option.
1495 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1496 '-key2 ...', '-servername_fatal' (subject to change). This allows
1497 testing the HostName extension for a specific single host name ('-cert'
1498 and '-key' remain fallbacks for handshakes without HostName
1499 negotiation). If the unrecogninzed_name alert has to be sent, this by
1500 default is a warning; it becomes fatal with the '-servername_fatal'
1503 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1505 *) Add AES and SSE2 assembly language support to VC++ build.
1508 *) Mitigate attack on final subtraction in Montgomery reduction.
1511 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1512 (which previously caused an internal error).
1515 *) Squeeze another 10% out of IGE mode when in != out.
1518 *) AES IGE mode speedup.
1519 [Dean Gaudet (Google)]
1521 *) Add the Korean symmetric 128-bit cipher SEED (see
1522 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1523 add SEED ciphersuites from RFC 4162:
1525 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1526 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1527 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1528 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1530 To minimize changes between patchlevels in the OpenSSL 0.9.8
1531 series, SEED remains excluded from compilation unless OpenSSL
1532 is configured with 'enable-seed'.
1533 [KISA, Bodo Moeller]
1535 *) Mitigate branch prediction attacks, which can be practical if a
1536 single processor is shared, allowing a spy process to extract
1537 information. For detailed background information, see
1538 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1539 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1540 and Necessary Software Countermeasures"). The core of the change
1541 are new versions BN_div_no_branch() and
1542 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1543 respectively, which are slower, but avoid the security-relevant
1544 conditional branches. These are automatically called by BN_div()
1545 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1546 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1547 remove a conditional branch.
1549 BN_FLG_CONSTTIME is the new name for the previous
1550 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1551 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1552 in the exponent causes BN_mod_exp_mont() to use the alternative
1553 implementation in BN_mod_exp_mont_consttime().) The old name
1554 remains as a deprecated alias.
1556 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1557 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1558 constant-time implementations for more than just exponentiation.
1559 Here too the old name is kept as a deprecated alias.
1561 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1562 the BN_BLINDING structure gets an independent copy of the
1563 modulus. This means that the previous "BIGNUM *m" argument to
1564 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1565 essentially becomes "const BIGNUM *m", although we can't actually
1566 change this in the header file before 0.9.9. It allows
1567 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1568 enable BN_FLG_CONSTTIME.
1570 [Matthew D Wood (Intel Corp)]
1572 *) In the SSL/TLS server implementation, be strict about session ID
1573 context matching (which matters if an application uses a single
1574 external cache for different purposes). Previously,
1575 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1576 set. This did ensure strict client verification, but meant that,
1577 with applications using a single external cache for quite
1578 different requirements, clients could circumvent ciphersuite
1579 restrictions for a given session ID context by starting a session
1580 in a different context.
1583 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1584 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1585 authentication-only ciphersuites.
1588 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1589 not complete and could lead to a possible single byte overflow
1590 (CVE-2007-5135) [Ben Laurie]
1592 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1594 *) Since AES128 and AES256 (and similarly Camellia128 and
1595 Camellia256) share a single mask bit in the logic of
1596 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1597 kludge to work properly if AES128 is available and AES256 isn't
1598 (or if Camellia128 is available and Camellia256 isn't).
1601 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1602 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1603 When a point or a seed is encoded in a BIT STRING, we need to
1604 prevent the removal of trailing zero bits to get the proper DER
1605 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1606 of a NamedBitList, for which trailing 0 bits need to be removed.)
1609 *) Have SSL/TLS server implementation tolerate "mismatched" record
1610 protocol version while receiving ClientHello even if the
1611 ClientHello is fragmented. (The server can't insist on the
1612 particular protocol version it has chosen before the ServerHello
1613 message has informed the client about his choice.)
1616 *) Add RFC 3779 support.
1617 [Rob Austein for ARIN, Ben Laurie]
1619 *) Load error codes if they are not already present instead of using a
1620 static variable. This allows them to be cleanly unloaded and reloaded.
1621 Improve header file function name parsing.
1624 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1625 or CAPABILITY handshake as required by RFCs.
1628 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1630 *) Introduce limits to prevent malicious keys being able to
1631 cause a denial of service. (CVE-2006-2940)
1632 [Steve Henson, Bodo Moeller]
1634 *) Fix ASN.1 parsing of certain invalid structures that can result
1635 in a denial of service. (CVE-2006-2937) [Steve Henson]
1637 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1638 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1640 *) Fix SSL client code which could crash if connecting to a
1641 malicious SSLv2 server. (CVE-2006-4343)
1642 [Tavis Ormandy and Will Drewry, Google Security Team]
1644 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1645 match only those. Before that, "AES256-SHA" would be interpreted
1646 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1647 the same strength classification in 0.9.7h) as we currently only
1648 have a single AES bit in the ciphersuite description bitmap.
1649 That change, however, also applied to ciphersuite strings such as
1650 "RC4-MD5" that intentionally matched multiple ciphersuites --
1651 namely, SSL 2.0 ciphersuites in addition to the more common ones
1652 from SSL 3.0/TLS 1.0.
1654 So we change the selection algorithm again: Naming an explicit
1655 ciphersuite selects this one ciphersuite, and any other similar
1656 ciphersuite (same bitmap) from *other* protocol versions.
1657 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1658 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1660 Since SSL 2.0 does not have any ciphersuites for which the
1661 128/256 bit distinction would be relevant, this works for now.
1662 The proper fix will be to use different bits for AES128 and
1663 AES256, which would have avoided the problems from the beginning;
1664 however, bits are scarce, so we can only do this in a new release
1665 (not just a patchlevel) when we can change the SSL_CIPHER
1666 definition to split the single 'unsigned long mask' bitmap into
1667 multiple values to extend the available space.
1671 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1673 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1674 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1676 *) Add AES IGE and biIGE modes.
1679 *) Change the Unix randomness entropy gathering to use poll() when
1680 possible instead of select(), since the latter has some
1681 undesirable limitations.
1682 [Darryl Miles via Richard Levitte and Bodo Moeller]
1684 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1685 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1686 cannot be implicitly activated as part of, e.g., the "AES" alias.
1687 However, please upgrade to OpenSSL 0.9.9[-dev] for
1688 non-experimental use of the ECC ciphersuites to get TLS extension
1689 support, which is required for curve and point format negotiation
1690 to avoid potential handshake problems.
1693 *) Disable rogue ciphersuites:
1695 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1696 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1697 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1699 The latter two were purportedly from
1700 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1703 Also deactivate the remaining ciphersuites from
1704 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1705 unofficial, and the ID has long expired.
1708 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1709 dual-core machines) and other potential thread-safety issues.
1712 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1713 versions), which is now available for royalty-free use
1714 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1715 Also, add Camellia TLS ciphersuites from RFC 4132.
1717 To minimize changes between patchlevels in the OpenSSL 0.9.8
1718 series, Camellia remains excluded from compilation unless OpenSSL
1719 is configured with 'enable-camellia'.
1722 *) Disable the padding bug check when compression is in use. The padding
1723 bug check assumes the first packet is of even length, this is not
1724 necessarily true if compresssion is enabled and can result in false
1725 positives causing handshake failure. The actual bug test is ancient
1726 code so it is hoped that implementations will either have fixed it by
1727 now or any which still have the bug do not support compression.
1730 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1732 *) When applying a cipher rule check to see if string match is an explicit
1733 cipher suite and only match that one cipher suite if it is.
1736 *) Link in manifests for VC++ if needed.
1737 [Austin Ziegler <halostatue@gmail.com>]
1739 *) Update support for ECC-based TLS ciphersuites according to
1740 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1741 TLS extensions, which are supported starting with the 0.9.9
1742 branch, not in the OpenSSL 0.9.8 branch).
1745 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1746 opaque EVP_CIPHER_CTX handling.
1749 *) Fixes and enhancements to zlib compression code. We now only use
1750 "zlib1.dll" and use the default __cdecl calling convention on Win32
1751 to conform with the standards mentioned here:
1752 http://www.zlib.net/DLL_FAQ.txt
1753 Static zlib linking now works on Windows and the new --with-zlib-include
1754 --with-zlib-lib options to Configure can be used to supply the location
1755 of the headers and library. Gracefully handle case where zlib library
1759 *) Several fixes and enhancements to the OID generation code. The old code
1760 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1761 handle numbers larger than ULONG_MAX, truncated printing and had a
1762 non standard OBJ_obj2txt() behaviour.
1765 *) Add support for building of engines under engine/ as shared libraries
1766 under VC++ build system.
1769 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1770 Hopefully, we will not see any false combination of paths any more.
1773 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1775 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1776 (part of SSL_OP_ALL). This option used to disable the
1777 countermeasure against man-in-the-middle protocol-version
1778 rollback in the SSL 2.0 server implementation, which is a bad
1779 idea. (CVE-2005-2969)
1781 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1782 for Information Security, National Institute of Advanced Industrial
1783 Science and Technology [AIST], Japan)]
1785 *) Add two function to clear and return the verify parameter flags.
1788 *) Keep cipherlists sorted in the source instead of sorting them at
1789 runtime, thus removing the need for a lock.
1792 *) Avoid some small subgroup attacks in Diffie-Hellman.
1793 [Nick Mathewson and Ben Laurie]
1795 *) Add functions for well-known primes.
1798 *) Extended Windows CE support.
1799 [Satoshi Nakamura and Andy Polyakov]
1801 *) Initialize SSL_METHOD structures at compile time instead of during
1802 runtime, thus removing the need for a lock.
1805 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1806 attempting to decrypt each encrypted key in turn. Add support to
1810 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1812 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1815 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1818 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1819 key into the same file any more.
1822 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1825 *) Add -utf8 command line and config file option to 'ca'.
1826 [Stefan <stf@udoma.org]
1828 *) Removed the macro des_crypt(), as it seems to conflict with some
1829 libraries. Use DES_crypt().
1832 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1833 involves renaming the source and generated shared-libs for
1834 both. The engines will accept the corrected or legacy ids
1835 ('ncipher' and '4758_cca' respectively) when binding. NB,
1836 this only applies when building 'shared'.
1837 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1839 *) Add attribute functions to EVP_PKEY structure. Modify
1840 PKCS12_create() to recognize a CSP name attribute and
1841 use it. Make -CSP option work again in pkcs12 utility.
1844 *) Add new functionality to the bn blinding code:
1845 - automatic re-creation of the BN_BLINDING parameters after
1846 a fixed number of uses (currently 32)
1847 - add new function for parameter creation
1848 - introduce flags to control the update behaviour of the
1849 BN_BLINDING parameters
1850 - hide BN_BLINDING structure
1851 Add a second BN_BLINDING slot to the RSA structure to improve
1852 performance when a single RSA object is shared among several
1856 *) Add support for DTLS.
1857 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1859 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1860 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1863 *) Remove buggy and incompletet DH cert support from
1864 ssl/ssl_rsa.c and ssl/s3_both.c
1867 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1868 the apps/openssl applications.
1871 *) Compile clean with "-Wall -Wmissing-prototypes
1872 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1873 DEBUG_SAFESTACK must also be set.
1876 *) Change ./Configure so that certain algorithms can be disabled by default.
1877 The new counterpiece to "no-xxx" is "enable-xxx".
1879 The patented RC5 and MDC2 algorithms will now be disabled unless
1880 "enable-rc5" and "enable-mdc2", respectively, are specified.
1882 (IDEA remains enabled despite being patented. This is because IDEA
1883 is frequently required for interoperability, and there is no license
1884 fee for non-commercial use. As before, "no-idea" can be used to
1885 avoid this algorithm.)
1889 *) Add processing of proxy certificates (see RFC 3820). This work was
1890 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1891 EGEE (Enabling Grids for E-science in Europe).
1894 *) RC4 performance overhaul on modern architectures/implementations, such
1895 as Intel P4, IA-64 and AMD64.
1898 *) New utility extract-section.pl. This can be used specify an alternative
1899 section number in a pod file instead of having to treat each file as
1900 a separate case in Makefile. This can be done by adding two lines to the
1903 =for comment openssl_section:XXX
1905 The blank line is mandatory.
1909 *) New arguments -certform, -keyform and -pass for s_client and s_server
1910 to allow alternative format key and certificate files and passphrase
1914 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1915 update associated structures and add various utility functions.
1917 Add new policy related verify parameters, include policy checking in
1918 standard verify code. Enhance 'smime' application with extra parameters
1919 to support policy checking and print out.
1922 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1923 Nehemiah processors. These extensions support AES encryption in hardware
1924 as well as RNG (though RNG support is currently disabled).
1925 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1927 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1930 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1931 [Andy Polyakov and a number of other people]
1933 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1934 implementation contributed by IBM.
1935 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1937 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1938 exponent rather than 'unsigned long'. There is a corresponding change to
1939 the new 'rsa_keygen' element of the RSA_METHOD structure.
1940 [Jelte Jansen, Geoff Thorpe]
1942 *) Functionality for creating the initial serial number file is now
1943 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1945 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1946 number file to 1, which is bound to cause problems. To avoid
1947 the problems while respecting compatibility between different 0.9.7
1948 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1949 CA.pl for serial number initialization. With the new release 0.9.8,
1950 we can fix the problem directly in the 'ca' utility.)
1953 *) Reduced header interdepencies by declaring more opaque objects in
1954 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1955 give fewer recursive includes, which could break lazy source code - so
1956 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1957 developers should define this symbol when building and using openssl to
1958 ensure they track the recommended behaviour, interfaces, [etc], but
1959 backwards-compatible behaviour prevails when this isn't defined.
1962 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1965 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1966 This will generate a random key of the appropriate length based on the
1967 cipher context. The EVP_CIPHER can provide its own random key generation
1968 routine to support keys of a specific form. This is used in the des and
1969 3des routines to generate a key of the correct parity. Update S/MIME
1970 code to use new functions and hence generate correct parity DES keys.
1971 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1972 valid (weak or incorrect parity).
1975 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1976 as looking them up. This is useful when the verified structure may contain
1977 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1978 present unless the new PKCS7_NO_CRL flag is asserted.
1981 *) Extend ASN1 oid configuration module. It now additionally accepts the
1984 shortName = some long name, 1.2.3.4
1987 *) Reimplemented the BN_CTX implementation. There is now no more static
1988 limitation on the number of variables it can handle nor the depth of the
1989 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1990 information can now expand as required, and rather than having a single
1991 static array of bignums, BN_CTX now uses a linked-list of such arrays
1992 allowing it to expand on demand whilst maintaining the usefulness of
1993 BN_CTX's "bundling".
1996 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1997 to allow all RSA operations to function using a single BN_CTX.
2000 *) Preliminary support for certificate policy evaluation and checking. This
2001 is initially intended to pass the tests outlined in "Conformance Testing
2002 of Relying Party Client Certificate Path Processing Logic" v1.07.
2005 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2006 remained unused and not that useful. A variety of other little bignum
2007 tweaks and fixes have also been made continuing on from the audit (see
2011 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2012 associated ASN1, EVP and SSL functions and old ASN1 macros.
2015 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2016 and this should never fail. So the return value from the use of
2017 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2018 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2021 *) BN_CTX_get() should return zero-valued bignums, providing the same
2022 initialised value as BN_new().
2023 [Geoff Thorpe, suggested by Ulf Möller]
2025 *) Support for inhibitAnyPolicy certificate extension.
2028 *) An audit of the BIGNUM code is underway, for which debugging code is
2029 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2030 is considered valid when processing BIGNUMs, and causes execution to
2031 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2032 further steps are taken to deliberately pollute unused data in BIGNUM
2033 structures to try and expose faulty code further on. For now, openssl will
2034 (in its default mode of operation) continue to tolerate the inconsistent
2035 forms that it has tolerated in the past, but authors and packagers should
2036 consider trying openssl and their own applications when compiled with
2037 these debugging symbols defined. It will help highlight potential bugs in
2038 their own code, and will improve the test coverage for OpenSSL itself. At
2039 some point, these tighter rules will become openssl's default to improve
2040 maintainability, though the assert()s and other overheads will remain only
2041 in debugging configurations. See bn.h for more details.
2042 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2044 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2045 that can only be obtained through BN_CTX_new() (which implicitly
2046 initialises it). The presence of this function only made it possible
2047 to overwrite an existing structure (and cause memory leaks).
2050 *) Because of the callback-based approach for implementing LHASH as a
2051 template type, lh_insert() adds opaque objects to hash-tables and
2052 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2053 to clean up those corresponding objects before destroying the hash table
2054 (and losing the object pointers). So some over-zealous constifications in
2055 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2056 objects as "const" and the lh_doall[_arg] callback wrappers are not
2057 prototyped to have "const" restrictions on the object pointers they are
2058 given (and so aren't required to cast them away any more).
2061 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2062 (speed) prefers to use its own implementation. The two implementations
2063 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2064 its object type properly exposed (MS_TM) instead of casting to/from "char
2065 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2066 aren't necessarily the greatest nomenclatures - but this is what was used
2067 internally to the implementation so I've used that for now.
2070 *) Ensure that deprecated functions do not get compiled when
2071 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2072 the self-tests were still using deprecated key-generation functions so
2073 these have been updated also.
2076 *) Reorganise PKCS#7 code to separate the digest location functionality
2077 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2078 New function PKCS7_set_digest() to set the digest type for PKCS#7
2079 digestedData type. Add additional code to correctly generate the
2080 digestedData type and add support for this type in PKCS7 initialization
2084 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2085 structure of type "other".
2088 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2089 sure the loop does correctly stop and breaking ("division by zero")
2090 modulus operations are not performed. The (pre-generated) prime
2091 table crypto/bn/bn_prime.h was already correct, but it could not be
2092 re-generated on some platforms because of the "division by zero"
2093 situation in the script.
2094 [Ralf S. Engelschall]
2096 *) Update support for ECC-based TLS ciphersuites according to
2097 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2098 SHA-1 now is only used for "small" curves (where the
2099 representation of a field element takes up to 24 bytes); for
2100 larger curves, the field element resulting from ECDH is directly
2101 used as premaster secret.
2102 [Douglas Stebila (Sun Microsystems Laboratories)]
2104 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2105 curve secp160r1 to the tests.
2106 [Douglas Stebila (Sun Microsystems Laboratories)]
2108 *) Add the possibility to load symbols globally with DSO.
2109 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2111 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2112 control of the error stack.
2115 *) Add support for STORE in ENGINE.
2118 *) Add the STORE type. The intention is to provide a common interface
2119 to certificate and key stores, be they simple file-based stores, or
2120 HSM-type store, or LDAP stores, or...
2121 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2124 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2125 pass a list of arguments to any function as well as provide a way
2126 for a function to pass data back to the caller.
2129 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2130 works like BUF_strdup() but can be used to duplicate a portion of
2131 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2135 *) Add the function sk_find_ex() which works like sk_find(), but will
2136 return an index to an element even if an exact match couldn't be
2137 found. The index is guaranteed to point at the element where the
2138 searched-for key would be inserted to preserve sorting order.
2141 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2142 takes an extra flags argument for optional functionality. Currently,
2143 the following flags are defined:
2145 OBJ_BSEARCH_VALUE_ON_NOMATCH
2146 This one gets OBJ_bsearch_ex() to return a pointer to the first
2147 element where the comparing function returns a negative or zero
2150 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2151 This one gets OBJ_bsearch_ex() to return a pointer to the first
2152 element where the comparing function returns zero. This is useful
2153 if there are more than one element where the comparing function
2157 *) Make it possible to create self-signed certificates with 'openssl ca'
2158 in such a way that the self-signed certificate becomes part of the
2159 CA database and uses the same mechanisms for serial number generation
2160 as all other certificate signing. The new flag '-selfsign' enables
2161 this functionality. Adapt CA.sh and CA.pl.in.
2164 *) Add functionality to check the public key of a certificate request
2165 against a given private. This is useful to check that a certificate
2166 request can be signed by that key (self-signing).
2169 *) Make it possible to have multiple active certificates with the same
2170 subject in the CA index file. This is done only if the keyword
2171 'unique_subject' is set to 'no' in the main CA section (default
2172 if 'CA_default') of the configuration file. The value is saved
2173 with the database itself in a separate index attribute file,
2174 named like the index file with '.attr' appended to the name.
2177 *) Generate muti valued AVAs using '+' notation in config files for
2181 *) Support for nameConstraints certificate extension.
2184 *) Support for policyConstraints certificate extension.
2187 *) Support for policyMappings certificate extension.
2190 *) Make sure the default DSA_METHOD implementation only uses its
2191 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2192 and change its own handlers to be NULL so as to remove unnecessary
2193 indirection. This lets alternative implementations fallback to the
2194 default implementation more easily.
2197 *) Support for directoryName in GeneralName related extensions
2201 *) Make it possible to link applications using Makefile.shared.
2202 Make that possible even when linking against static libraries!
2205 *) Support for single pass processing for S/MIME signing. This now
2206 means that S/MIME signing can be done from a pipe, in addition
2207 cleartext signing (multipart/signed type) is effectively streaming
2208 and the signed data does not need to be all held in memory.
2210 This is done with a new flag PKCS7_STREAM. When this flag is set
2211 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2212 is done after the data is output (and digests calculated) in
2213 SMIME_write_PKCS7().
2216 *) Add full support for -rpath/-R, both in shared libraries and
2217 applications, at least on the platforms where it's known how
2221 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2222 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2223 will now compute a table of multiples of the generator that
2224 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2225 faster (notably in the case of a single point multiplication,
2226 scalar * generator).
2227 [Nils Larsch, Bodo Moeller]
2229 *) IPv6 support for certificate extensions. The various extensions
2230 which use the IP:a.b.c.d can now take IPv6 addresses using the
2231 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2235 *) Added an ENGINE that implements RSA by performing private key
2236 exponentiations with the GMP library. The conversions to and from
2237 GMP's mpz_t format aren't optimised nor are any montgomery forms
2238 cached, and on x86 it appears OpenSSL's own performance has caught up.
2239 However there are likely to be other architectures where GMP could
2240 provide a boost. This ENGINE is not built in by default, but it can be
2241 specified at Configure time and should be accompanied by the necessary
2242 linker additions, eg;
2243 ./config -DOPENSSL_USE_GMP -lgmp
2246 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2247 testing availability of engines with "-t" - the old behaviour is
2248 produced by increasing the feature's verbosity with "-tt".
2251 *) ECDSA routines: under certain error conditions uninitialized BN objects
2252 could be freed. Solution: make sure initialization is performed early
2253 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2257 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2258 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2259 software implementations. For DSA and DH, parameter generation can
2260 also be overriden by providing the appropriate method callbacks.
2263 *) Change the "progress" mechanism used in key-generation and
2264 primality testing to functions that take a new BN_GENCB pointer in
2265 place of callback/argument pairs. The new API functions have "_ex"
2266 postfixes and the older functions are reimplemented as wrappers for
2267 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2268 declarations of the old functions to help (graceful) attempts to
2269 migrate to the new functions. Also, the new key-generation API
2270 functions operate on a caller-supplied key-structure and return
2271 success/failure rather than returning a key or NULL - this is to
2272 help make "keygen" another member function of RSA_METHOD etc.
2274 Example for using the new callback interface:
2276 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2280 BN_GENCB_set(&my_cb, my_callback, my_arg);
2282 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2283 /* For the meaning of a, b in calls to my_callback(), see the
2284 * documentation of the function that calls the callback.
2285 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2286 * my_callback should return 1 if it wants BN_is_prime_ex()
2287 * to continue, or 0 to stop.
2292 *) Change the ZLIB compression method to be stateful, and make it
2293 available to TLS with the number defined in
2294 draft-ietf-tls-compression-04.txt.
2297 *) Add the ASN.1 structures and functions for CertificatePair, which
2298 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2300 CertificatePair ::= SEQUENCE {
2301 forward [0] Certificate OPTIONAL,
2302 reverse [1] Certificate OPTIONAL,
2303 -- at least one of the pair shall be present -- }
2305 Also implement the PEM functions to read and write certificate
2306 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2308 This needed to be defined, mostly for the sake of the LDAP
2309 attribute crossCertificatePair, but may prove useful elsewhere as
2313 *) Make it possible to inhibit symlinking of shared libraries in
2314 Makefile.shared, for Cygwin's sake.
2317 *) Extend the BIGNUM API by creating a function
2318 void BN_set_negative(BIGNUM *a, int neg);
2319 and a macro that behave like
2320 int BN_is_negative(const BIGNUM *a);
2322 to avoid the need to access 'a->neg' directly in applications.
2325 *) Implement fast modular reduction for pseudo-Mersenne primes
2326 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2327 EC_GROUP_new_curve_GFp() will now automatically use this
2329 [Nils Larsch <nla@trustcenter.de>]
2331 *) Add new lock type (CRYPTO_LOCK_BN).
2334 *) Change the ENGINE framework to automatically load engines
2335 dynamically from specific directories unless they could be
2336 found to already be built in or loaded. Move all the
2337 current engines except for the cryptodev one to a new
2339 The engines in engines/ are built as shared libraries if
2340 the "shared" options was given to ./Configure or ./config.
2341 Otherwise, they are inserted in libcrypto.a.
2342 /usr/local/ssl/engines is the default directory for dynamic
2343 engines, but that can be overriden at configure time through
2344 the usual use of --prefix and/or --openssldir, and at run
2345 time with the environment variable OPENSSL_ENGINES.
2346 [Geoff Thorpe and Richard Levitte]
2348 *) Add Makefile.shared, a helper makefile to build shared
2349 libraries. Addapt Makefile.org.
2352 *) Add version info to Win32 DLLs.
2353 [Peter 'Luna' Runestig" <peter@runestig.com>]
2355 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2356 can be added using this API to created arbitrary PKCS#12
2357 files while avoiding the low level API.
2359 New options to PKCS12_create(), key or cert can be NULL and
2360 will then be omitted from the output file. The encryption
2361 algorithm NIDs can be set to -1 for no encryption, the mac
2362 iteration count can be set to 0 to omit the mac.
2364 Enhance pkcs12 utility by making the -nokeys and -nocerts
2365 options work when creating a PKCS#12 file. New option -nomac
2366 to omit the mac, NONE can be set for an encryption algorithm.
2367 New code is modified to use the enhanced PKCS12_create()
2368 instead of the low level API.
2371 *) Extend ASN1 encoder to support indefinite length constructed
2372 encoding. This can output sequences tags and octet strings in
2373 this form. Modify pk7_asn1.c to support indefinite length
2374 encoding. This is experimental and needs additional code to
2375 be useful, such as an ASN1 bio and some enhanced streaming
2378 Extend template encode functionality so that tagging is passed
2379 down to the template encoder.
2382 *) Let 'openssl req' fail if an argument to '-newkey' is not
2383 recognized instead of using RSA as a default.
2386 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2387 As these are not official, they are not included in "ALL";
2388 the "ECCdraft" ciphersuite group alias can be used to select them.
2389 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2391 *) Add ECDH engine support.
2392 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2394 *) Add ECDH in new directory crypto/ecdh/.
2395 [Douglas Stebila (Sun Microsystems Laboratories)]
2397 *) Let BN_rand_range() abort with an error after 100 iterations
2398 without success (which indicates a broken PRNG).
2401 *) Change BN_mod_sqrt() so that it verifies that the input value
2402 is really the square of the return value. (Previously,
2403 BN_mod_sqrt would show GIGO behaviour.)
2406 *) Add named elliptic curves over binary fields from X9.62, SECG,
2407 and WAP/WTLS; add OIDs that were still missing.
2409 [Sheueling Chang Shantz and Douglas Stebila
2410 (Sun Microsystems Laboratories)]
2412 *) Extend the EC library for elliptic curves over binary fields
2413 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2416 EC_GF2m_simple_method
2420 EC_GROUP_new_curve_GF2m
2421 EC_GROUP_set_curve_GF2m
2422 EC_GROUP_get_curve_GF2m
2423 EC_POINT_set_affine_coordinates_GF2m
2424 EC_POINT_get_affine_coordinates_GF2m
2425 EC_POINT_set_compressed_coordinates_GF2m
2427 Point compression for binary fields is disabled by default for
2428 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2431 As binary polynomials are represented as BIGNUMs, various members
2432 of the EC_GROUP and EC_POINT data structures can be shared
2433 between the implementations for prime fields and binary fields;
2434 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2435 are essentially identical to their ..._GFp counterparts.
2436 (For simplicity, the '..._GFp' prefix has been dropped from
2437 various internal method names.)
2439 An internal 'field_div' method (similar to 'field_mul' and
2440 'field_sqr') has been added; this is used only for binary fields.
2442 [Sheueling Chang Shantz and Douglas Stebila
2443 (Sun Microsystems Laboratories)]
2445 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2446 through methods ('mul', 'precompute_mult').
2448 The generic implementations (now internally called 'ec_wNAF_mul'
2449 and 'ec_wNAF_precomputed_mult') remain the default if these
2450 methods are undefined.
2452 [Sheueling Chang Shantz and Douglas Stebila
2453 (Sun Microsystems Laboratories)]
2455 *) New function EC_GROUP_get_degree, which is defined through
2456 EC_METHOD. For curves over prime fields, this returns the bit
2457 length of the modulus.
2459 [Sheueling Chang Shantz and Douglas Stebila
2460 (Sun Microsystems Laboratories)]
2462 *) New functions EC_GROUP_dup, EC_POINT_dup.
2463 (These simply call ..._new and ..._copy).
2465 [Sheueling Chang Shantz and Douglas Stebila
2466 (Sun Microsystems Laboratories)]
2468 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2469 Polynomials are represented as BIGNUMs (where the sign bit is not
2470 used) in the following functions [macros]:
2473 BN_GF2m_sub [= BN_GF2m_add]
2474 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2475 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2476 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2478 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2479 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2480 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2481 BN_GF2m_cmp [= BN_ucmp]
2483 (Note that only the 'mod' functions are actually for fields GF(2^m).
2484 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2486 For some functions, an the irreducible polynomial defining a
2487 field can be given as an 'unsigned int[]' with strictly
2488 decreasing elements giving the indices of those bits that are set;
2489 i.e., p[] represents the polynomial
2490 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2492 p[0] > p[1] > ... > p[k] = 0.
2493 This applies to the following functions:
2498 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2499 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2501 BN_GF2m_mod_sqrt_arr
2502 BN_GF2m_mod_solve_quad_arr
2506 Conversion can be performed by the following functions:
2511 bntest.c has additional tests for binary polynomial arithmetic.
2513 Two implementations for BN_GF2m_mod_div() are available.
2514 The default algorithm simply uses BN_GF2m_mod_inv() and
2515 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2516 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2517 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2519 [Sheueling Chang Shantz and Douglas Stebila
2520 (Sun Microsystems Laboratories)]
2522 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2523 functionality is disabled at compile-time.
2524 [Douglas Stebila <douglas.stebila@sun.com>]
2526 *) Change default behaviour of 'openssl asn1parse' so that more
2527 information is visible when viewing, e.g., a certificate:
2529 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2530 mode the content of non-printable OCTET STRINGs is output in a
2531 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2532 avoid the appearance of a printable string.
2533 [Nils Larsch <nla@trustcenter.de>]
2535 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2537 EC_GROUP_set_asn1_flag()
2538 EC_GROUP_get_asn1_flag()
2539 EC_GROUP_set_point_conversion_form()
2540 EC_GROUP_get_point_conversion_form()
2541 These control ASN1 encoding details:
2542 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2543 has been set to OPENSSL_EC_NAMED_CURVE.
2544 - Points are encoded in uncompressed form by default; options for
2545 asn1_for are as for point2oct, namely
2546 POINT_CONVERSION_COMPRESSED
2547 POINT_CONVERSION_UNCOMPRESSED
2548 POINT_CONVERSION_HYBRID
2550 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2553 EC_GROUP_get0_seed()
2554 EC_GROUP_get_seed_len()
2555 This is used only for ASN1 purposes (so far).
2556 [Nils Larsch <nla@trustcenter.de>]
2558 *) Add 'field_type' member to EC_METHOD, which holds the NID
2559 of the appropriate field type OID. The new function
2560 EC_METHOD_get_field_type() returns this value.
2561 [Nils Larsch <nla@trustcenter.de>]
2566 EC_POINT_point2hex()
2567 EC_POINT_hex2point()
2568 providing useful interfaces to EC_POINT_point2oct() and
2569 EC_POINT_oct2point().
2570 [Nils Larsch <nla@trustcenter.de>]
2572 *) Change internals of the EC library so that the functions
2573 EC_GROUP_set_generator()
2574 EC_GROUP_get_generator()
2575 EC_GROUP_get_order()
2576 EC_GROUP_get_cofactor()
2577 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2578 to methods, which would lead to unnecessary code duplication when
2579 adding different types of curves.
2580 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2582 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2583 arithmetic, and such that modified wNAFs are generated
2584 (which avoid length expansion in many cases).
2587 *) Add a function EC_GROUP_check_discriminant() (defined via
2588 EC_METHOD) that verifies that the curve discriminant is non-zero.
2590 Add a function EC_GROUP_check() that makes some sanity tests
2591 on a EC_GROUP, its generator and order. This includes
2592 EC_GROUP_check_discriminant().
2593 [Nils Larsch <nla@trustcenter.de>]
2595 *) Add ECDSA in new directory crypto/ecdsa/.
2597 Add applications 'openssl ecparam' and 'openssl ecdsa'
2598 (these are based on 'openssl dsaparam' and 'openssl dsa').
2600 ECDSA support is also included in various other files across the
2601 library. Most notably,
2602 - 'openssl req' now has a '-newkey ecdsa:file' option;
2603 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2604 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2605 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2606 them suitable for ECDSA where domain parameters must be
2607 extracted before the specific public key;
2608 - ECDSA engine support has been added.
2609 [Nils Larsch <nla@trustcenter.de>]
2611 *) Include some named elliptic curves, and add OIDs from X9.62,
2612 SECG, and WAP/WTLS. Each curve can be obtained from the new
2614 EC_GROUP_new_by_curve_name(),
2615 and the list of available named curves can be obtained with
2616 EC_get_builtin_curves().
2617 Also add a 'curve_name' member to EC_GROUP objects, which can be
2619 EC_GROUP_set_curve_name()
2620 EC_GROUP_get_curve_name()
2621 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2623 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2624 was actually never needed) and in BN_mul(). The removal in BN_mul()
2625 required a small change in bn_mul_part_recursive() and the addition
2626 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2627 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2628 bn_sub_words() and bn_add_words() except they take arrays with
2632 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2634 *) Cleanse PEM buffers before freeing them since they may contain
2636 [Benjamin Bennett <ben@psc.edu>]
2638 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2639 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2640 authentication-only ciphersuites.
2643 *) Since AES128 and AES256 share a single mask bit in the logic of
2644 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2645 kludge to work properly if AES128 is available and AES256 isn't.
2648 *) Expand security boundary to match 1.1.1 module.
2651 *) Remove redundant features: hash file source, editing of test vectors
2652 modify fipsld to use external fips_premain.c signature.
2655 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2656 run algorithm test programs.
2659 *) Make algorithm test programs more tolerant of whitespace.
2662 *) Have SSL/TLS server implementation tolerate "mismatched" record
2663 protocol version while receiving ClientHello even if the
2664 ClientHello is fragmented. (The server can't insist on the
2665 particular protocol version it has chosen before the ServerHello
2666 message has informed the client about his choice.)
2669 *) Load error codes if they are not already present instead of using a
2670 static variable. This allows them to be cleanly unloaded and reloaded.
2673 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2675 *) Introduce limits to prevent malicious keys being able to
2676 cause a denial of service. (CVE-2006-2940)
2677 [Steve Henson, Bodo Moeller]
2679 *) Fix ASN.1 parsing of certain invalid structures that can result
2680 in a denial of service. (CVE-2006-2937) [Steve Henson]
2682 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2683 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2685 *) Fix SSL client code which could crash if connecting to a
2686 malicious SSLv2 server. (CVE-2006-4343)
2687 [Tavis Ormandy and Will Drewry, Google Security Team]
2689 *) Change ciphersuite string processing so that an explicit
2690 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2691 will no longer include "AES128-SHA"), and any other similar
2692 ciphersuite (same bitmap) from *other* protocol versions (so that
2693 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2694 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2695 changes from 0.9.8b and 0.9.8d.
2698 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2700 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2701 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2703 *) Change the Unix randomness entropy gathering to use poll() when
2704 possible instead of select(), since the latter has some
2705 undesirable limitations.
2706 [Darryl Miles via Richard Levitte and Bodo Moeller]
2708 *) Disable rogue ciphersuites:
2710 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2711 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2712 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2714 The latter two were purportedly from
2715 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2718 Also deactive the remaining ciphersuites from
2719 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2720 unofficial, and the ID has long expired.
2723 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2724 dual-core machines) and other potential thread-safety issues.
2727 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2729 *) Adapt fipsld and the build system to link against the validated FIPS
2730 module in FIPS mode.
2733 *) Fixes for VC++ 2005 build under Windows.
2736 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2737 from a Windows bash shell such as MSYS. It is autodetected from the
2738 "config" script when run from a VC++ environment. Modify standard VC++
2739 build to use fipscanister.o from the GNU make build.
2742 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2744 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2745 The value now differs depending on if you build for FIPS or not.
2746 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2747 safely run with a non-FIPSed libcrypto, as it may crash because of
2748 the difference induced by this change.
2751 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2753 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2754 (part of SSL_OP_ALL). This option used to disable the
2755 countermeasure against man-in-the-middle protocol-version
2756 rollback in the SSL 2.0 server implementation, which is a bad
2757 idea. (CVE-2005-2969)
2759 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2760 for Information Security, National Institute of Advanced Industrial
2761 Science and Technology [AIST], Japan)]
2763 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2764 mainly for FIPS compliance and not fully integrated at this stage.
2767 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2768 the exponentiation using a fixed-length exponent. (Otherwise,
2769 the information leaked through timing could expose the secret key
2770 after many signatures; cf. Bleichenbacher's attack on DSA with
2774 *) Make a new fixed-window mod_exp implementation the default for
2775 RSA, DSA, and DH private-key operations so that the sequence of
2776 squares and multiplies and the memory access pattern are
2777 independent of the particular secret key. This will mitigate
2778 cache-timing and potential related attacks.
2780 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2781 and this is automatically used by BN_mod_exp_mont() if the new flag
2782 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2783 will use this BN flag for private exponents unless the flag
2784 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2785 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2787 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2789 *) Change the client implementation for SSLv23_method() and
2790 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2791 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2792 (Previously, the SSL 2.0 backwards compatible Client Hello
2793 message format would be used even with SSL_OP_NO_SSLv2.)
2796 *) Add support for smime-type MIME parameter in S/MIME messages which some
2800 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2801 a threadsafe manner. Modify rsa code to use new function and add calls
2802 to dsa and dh code (which had race conditions before).
2805 *) Include the fixed error library code in the C error file definitions
2806 instead of fixing them up at runtime. This keeps the error code
2807 structures constant.
2810 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2812 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2815 *) Fixes for newer kerberos headers. NB: the casts are needed because
2816 the 'length' field is signed on one version and unsigned on another
2817 with no (?) obvious way to tell the difference, without these VC++
2818 complains. Also the "definition" of FAR (blank) is no longer included
2819 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2820 some needed definitions.
2823 *) Undo Cygwin change.
2826 *) Added support for proxy certificates according to RFC 3820.
2827 Because they may be a security thread to unaware applications,
2828 they must be explicitely allowed in run-time. See
2829 docs/HOWTO/proxy_certificates.txt for further information.
2832 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2834 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2835 server and client random values. Previously
2836 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2837 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2839 This change has negligible security impact because:
2841 1. Server and client random values still have 24 bytes of pseudo random
2844 2. Server and client random values are sent in the clear in the initial
2847 3. The master secret is derived using the premaster secret (48 bytes in
2848 size for static RSA ciphersuites) as well as client server and random
2851 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2854 [Stephen Henson, reported by UK NISCC]
2856 *) Use Windows randomness collection on Cygwin.
2859 *) Fix hang in EGD/PRNGD query when communication socket is closed
2860 prematurely by EGD/PRNGD.
2861 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2863 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2866 *) Back-port of selected performance improvements from development
2867 branch, as well as improved support for PowerPC platforms.
2870 *) Add lots of checks for memory allocation failure, error codes to indicate
2871 failure and freeing up memory if a failure occurs.
2872 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2874 *) Add new -passin argument to dgst.
2877 *) Perform some character comparisons of different types in X509_NAME_cmp:
2878 this is needed for some certificates that reencode DNs into UTF8Strings
2879 (in violation of RFC3280) and can't or wont issue name rollover
2883 *) Make an explicit check during certificate validation to see that
2884 the CA setting in each certificate on the chain is correct. As a
2885 side effect always do the following basic checks on extensions,
2886 not just when there's an associated purpose to the check:
2888 - if there is an unhandled critical extension (unless the user
2889 has chosen to ignore this fault)
2890 - if the path length has been exceeded (if one is set at all)
2891 - that certain extensions fit the associated purpose (if one has
2895 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2897 *) Avoid a race condition when CRLs are checked in a multi threaded
2898 environment. This would happen due to the reordering of the revoked
2899 entries during signature checking and serial number lookup. Now the
2900 encoding is cached and the serial number sort performed under a lock.
2901 Add new STACK function sk_is_sorted().
2904 *) Add Delta CRL to the extension code.
2907 *) Various fixes to s3_pkt.c so alerts are sent properly.
2908 [David Holmes <d.holmes@f5.com>]
2910 *) Reduce the chances of duplicate issuer name and serial numbers (in
2911 violation of RFC3280) using the OpenSSL certificate creation utilities.
2912 This is done by creating a random 64 bit value for the initial serial
2913 number when a serial number file is created or when a self signed
2914 certificate is created using 'openssl req -x509'. The initial serial
2915 number file is created using 'openssl x509 -next_serial' in CA.pl
2916 rather than being initialized to 1.
2919 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2921 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2922 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2923 [Joe Orton, Steve Henson]
2925 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2927 [Joe Orton, Steve Henson]
2929 *) Make it possible to have multiple active certificates with the same
2930 subject in the CA index file. This is done only if the keyword
2931 'unique_subject' is set to 'no' in the main CA section (default
2932 if 'CA_default') of the configuration file. The value is saved
2933 with the database itself in a separate index attribute file,
2934 named like the index file with '.attr' appended to the name.
2937 *) X509 verify fixes. Disable broken certificate workarounds when
2938 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2939 keyUsage extension present. Don't accept CRLs with unhandled critical
2940 extensions: since verify currently doesn't process CRL extensions this
2941 rejects a CRL with *any* critical extensions. Add new verify error codes
2945 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2946 A clarification of RFC2560 will require the use of OCTET STRINGs and
2947 some implementations cannot handle the current raw format. Since OpenSSL
2948 copies and compares OCSP nonces as opaque blobs without any attempt at
2949 parsing them this should not create any compatibility issues.
2952 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2953 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2954 this HMAC (and other) operations are several times slower than OpenSSL
2958 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2959 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2961 *) Use the correct content when signing type "other".
2964 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2966 *) Fix various bugs revealed by running the NISCC test suite:
2968 Stop out of bounds reads in the ASN1 code when presented with
2969 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2971 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2973 If verify callback ignores invalid public key errors don't try to check
2974 certificate signature with the NULL public key.
2978 *) New -ignore_err option in ocsp application to stop the server
2979 exiting on the first error in a request.
2982 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2983 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2987 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2988 extra data after the compression methods not only for TLS 1.0
2989 but also for SSL 3.0 (as required by the specification).
2990 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2992 *) Change X509_certificate_type() to mark the key as exported/exportable
2993 when it's 512 *bits* long, not 512 bytes.
2996 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2997 blocks during encryption.
3000 *) Various fixes to base64 BIO and non blocking I/O. On write
3001 flushes were not handled properly if the BIO retried. On read
3002 data was not being buffered properly and had various logic bugs.
3003 This also affects blocking I/O when the data being decoded is a
3007 *) Various S/MIME bugfixes and compatibility changes:
3008 output correct application/pkcs7 MIME type if
3009 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3010 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3011 of files as .eml work). Correctly handle very long lines in MIME
3015 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3017 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3018 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3019 a protocol version number mismatch like a decryption error
3020 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3023 *) Turn on RSA blinding by default in the default implementation
3024 to avoid a timing attack. Applications that don't want it can call
3025 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3026 They would be ill-advised to do so in most cases.
3027 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3029 *) Change RSA blinding code so that it works when the PRNG is not
3030 seeded (in this case, the secret RSA exponent is abused as
3031 an unpredictable seed -- if it is not unpredictable, there
3032 is no point in blinding anyway). Make RSA blinding thread-safe
3033 by remembering the creator's thread ID in rsa->blinding and
3034 having all other threads use local one-time blinding factors
3035 (this requires more computation than sharing rsa->blinding, but
3036 avoids excessive locking; and if an RSA object is not shared
3037 between threads, blinding will still be very fast).
3040 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3041 ENGINE as defaults for all supported algorithms irrespective of
3042 the 'flags' parameter. 'flags' is now honoured, so applications
3043 should make sure they are passing it correctly.
3046 *) Target "mingw" now allows native Windows code to be generated in
3047 the Cygwin environment as well as with the MinGW compiler.
3050 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3052 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3053 via timing by performing a MAC computation even if incorrrect
3054 block cipher padding has been found. This is a countermeasure
3055 against active attacks where the attacker has to distinguish
3056 between bad padding and a MAC verification error. (CVE-2003-0078)
3058 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3059 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3060 Martin Vuagnoux (EPFL, Ilion)]
3062 *) Make the no-err option work as intended. The intention with no-err
3063 is not to have the whole error stack handling routines removed from
3064 libcrypto, it's only intended to remove all the function name and
3065 reason texts, thereby removing some of the footprint that may not
3066 be interesting if those errors aren't displayed anyway.
3068 NOTE: it's still possible for any application or module to have it's
3069 own set of error texts inserted. The routines are there, just not
3070 used by default when no-err is given.
3073 *) Add support for FreeBSD on IA64.
3074 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3076 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3077 Kerberos function mit_des_cbc_cksum(). Before this change,
3078 the value returned by DES_cbc_cksum() was like the one from
3079 mit_des_cbc_cksum(), except the bytes were swapped.
3080 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3082 *) Allow an application to disable the automatic SSL chain building.
3083 Before this a rather primitive chain build was always performed in
3084 ssl3_output_cert_chain(): an application had no way to send the
3085 correct chain if the automatic operation produced an incorrect result.
3087 Now the chain builder is disabled if either:
3089 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3091 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3093 The reasoning behind this is that an application would not want the
3094 auto chain building to take place if extra chain certificates are
3095 present and it might also want a means of sending no additional
3096 certificates (for example the chain has two certificates and the
3100 *) Add the possibility to build without the ENGINE framework.
3101 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3103 *) Under Win32 gmtime() can return NULL: check return value in
3104 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3107 *) DSA routines: under certain error conditions uninitialized BN objects
3108 could be freed. Solution: make sure initialization is performed early
3109 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3110 Nils Larsch <nla@trustcenter.de> via PR#459)
3113 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3114 checked on reconnect on the client side, therefore session resumption
3115 could still fail with a "ssl session id is different" error. This
3116 behaviour is masked when SSL_OP_ALL is used due to
3117 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3118 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3119 followup to PR #377.
3122 *) IA-32 assembler support enhancements: unified ELF targets, support
3123 for SCO/Caldera platforms, fix for Cygwin shared build.
3126 *) Add support for FreeBSD on sparc64. As a consequence, support for
3127 FreeBSD on non-x86 processors is separate from x86 processors on
3128 the config script, much like the NetBSD support.
3129 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3131 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3133 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3136 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3137 code (06) was taken as the first octet of the session ID and the last
3138 octet was ignored consequently. As a result SSLv2 client side session
3139 caching could not have worked due to the session ID mismatch between
3141 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3145 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3146 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3150 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3151 seems that in spite of existing for more than a year, many application
3152 author have done nothing to provide the necessary callbacks, which
3153 means that this particular engine will not work properly anywhere.
3154 This is a very unfortunate situation which forces us, in the name
3155 of usability, to give the hw_ncipher.c a static lock, which is part
3157 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3158 appear in 0.9.8 or later. We EXPECT application authors to have
3159 dealt properly with this when 0.9.8 is released (unless we actually
3160 make such changes in the libcrypto locking code that changes will
3161 have to be made anyway).
3164 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3165 octets have been read, EOF or an error occurs. Without this change
3166 some truncated ASN1 structures will not produce an error.
3169 *) Disable Heimdal support, since it hasn't been fully implemented.
3170 Still give the possibility to force the use of Heimdal, but with
3171 warnings and a request that patches get sent to openssl-dev.
3174 *) Add the VC-CE target, introduce the WINCE sysname, and add
3175 INSTALL.WCE and appropriate conditionals to make it build.
3176 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3178 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3179 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3180 edit numbers of the version.
3181 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3183 *) Introduce safe string copy and catenation functions
3184 (BUF_strlcpy() and BUF_strlcat()).
3185 [Ben Laurie (CHATS) and Richard Levitte]
3187 *) Avoid using fixed-size buffers for one-line DNs.
3188 [Ben Laurie (CHATS)]
3190 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3191 resizing buffers containing secrets, and use where appropriate.
3192 [Ben Laurie (CHATS)]
3194 *) Avoid using fixed size buffers for configuration file location.
3195 [Ben Laurie (CHATS)]
3197 *) Avoid filename truncation for various CA files.
3198 [Ben Laurie (CHATS)]
3200 *) Use sizeof in preference to magic numbers.
3201 [Ben Laurie (CHATS)]
3203 *) Avoid filename truncation in cert requests.
3204 [Ben Laurie (CHATS)]
3206 *) Add assertions to check for (supposedly impossible) buffer
3208 [Ben Laurie (CHATS)]
3210 *) Don't cache truncated DNS entries in the local cache (this could
3211 potentially lead to a spoofing attack).
3212 [Ben Laurie (CHATS)]
3214 *) Fix various buffers to be large enough for hex/decimal
3215 representations in a platform independent manner.
3216 [Ben Laurie (CHATS)]
3218 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3219 resizing buffers containing secrets, and use where appropriate.
3220 [Ben Laurie (CHATS)]
3222 *) Add BIO_indent() to avoid much slightly worrying code to do
3224 [Ben Laurie (CHATS)]
3226 *) Convert sprintf()/BIO_puts() to BIO_printf().
3227 [Ben Laurie (CHATS)]
3229 *) buffer_gets() could terminate with the buffer only half
3231 [Ben Laurie (CHATS)]
3233 *) Add assertions to prevent user-supplied crypto functions from
3234 overflowing internal buffers by having large block sizes, etc.
3235 [Ben Laurie (CHATS)]
3237 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3239 [Ben Laurie (CHATS)]
3241 *) Eliminate unused copy of key in RC4.
3242 [Ben Laurie (CHATS)]
3244 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3245 [Ben Laurie (CHATS)]
3247 *) Fix off-by-one error in EGD path.
3248 [Ben Laurie (CHATS)]
3250 *) If RANDFILE path is too long, ignore instead of truncating.
3251 [Ben Laurie (CHATS)]
3253 *) Eliminate unused and incorrectly sized X.509 structure
3255 [Ben Laurie (CHATS)]
3257 *) Eliminate unused and dangerous function knumber().
3258 [Ben Laurie (CHATS)]
3260 *) Eliminate unused and dangerous structure, KSSL_ERR.
3261 [Ben Laurie (CHATS)]
3263 *) Protect against overlong session ID context length in an encoded
3264 session object. Since these are local, this does not appear to be
3266 [Ben Laurie (CHATS)]
3268 *) Change from security patch (see 0.9.6e below) that did not affect
3269 the 0.9.6 release series:
3271 Remote buffer overflow in SSL3 protocol - an attacker could
3272 supply an oversized master key in Kerberos-enabled versions.
3274 [Ben Laurie (CHATS)]
3276 *) Change the SSL kerb5 codes to match RFC 2712.
3279 *) Make -nameopt work fully for req and add -reqopt switch.
3280 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3282 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3283 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3285 *) Make sure tests can be performed even if the corresponding algorithms
3286 have been removed entirely. This was also the last step to make
3287 OpenSSL compilable with DJGPP under all reasonable conditions.
3288 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3290 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3291 to allow version independent disabling of normally unselected ciphers,
3292 which may be activated as a side-effect of selecting a single cipher.
3294 (E.g., cipher list string "RSA" enables ciphersuites that are left
3295 out of "ALL" because they do not provide symmetric encryption.
3296 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3297 [Lutz Jaenicke, Bodo Moeller]
3299 *) Add appropriate support for separate platform-dependent build
3300 directories. The recommended way to make a platform-dependent
3301 build directory is the following (tested on Linux), maybe with
3304 # Place yourself outside of the OpenSSL source tree. In
3305 # this example, the environment variable OPENSSL_SOURCE
3306 # is assumed to contain the absolute OpenSSL source directory.
3307 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3308 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3309 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3310 mkdir -p `dirname $F`
3311 ln -s $OPENSSL_SOURCE/$F $F
3314 To be absolutely sure not to disturb the source tree, a "make clean"
3315 is a good thing. If it isn't successfull, don't worry about it,
3316 it probably means the source directory is very clean.
3319 *) Make sure any ENGINE control commands make local copies of string
3320 pointers passed to them whenever necessary. Otherwise it is possible
3321 the caller may have overwritten (or deallocated) the original string
3322 data when a later ENGINE operation tries to use the stored values.
3323 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3325 *) Improve diagnostics in file reading and command-line digests.
3326 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3328 *) Add AES modes CFB and OFB to the object database. Correct an
3329 error in AES-CFB decryption.
3332 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3333 allows existing EVP_CIPHER_CTX structures to be reused after
3334 calling EVP_*Final(). This behaviour is used by encryption
3335 BIOs and some applications. This has the side effect that
3336 applications must explicitly clean up cipher contexts with
3337 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3340 *) Check the values of dna and dnb in bn_mul_recursive before calling
3341 bn_mul_comba (a non zero value means the a or b arrays do not contain
3342 n2 elements) and fallback to bn_mul_normal if either is not zero.
3345 *) Fix escaping of non-ASCII characters when using the -subj option
3346 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3349 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3350 form for "surname", serialNumber has no short form.
3351 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3352 therefore remove "mail" short name for "internet 7".
3353 The OID for unique identifiers in X509 certificates is
3354 x500UniqueIdentifier, not uniqueIdentifier.
3355 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3358 *) Add an "init" command to the ENGINE config module and auto initialize
3359 ENGINEs. Without any "init" command the ENGINE will be initialized
3360 after all ctrl commands have been executed on it. If init=1 the
3361 ENGINE is initailized at that point (ctrls before that point are run
3362 on the uninitialized ENGINE and after on the initialized one). If
3363 init=0 then the ENGINE will not be iniatialized at all.
3366 *) Fix the 'app_verify_callback' interface so that the user-defined
3367 argument is actually passed to the callback: In the
3368 SSL_CTX_set_cert_verify_callback() prototype, the callback
3369 declaration has been changed from
3372 int (*cb)(X509_STORE_CTX *,void *);
3373 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3374 i=s->ctx->app_verify_callback(&ctx)
3375 has been changed into
3376 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3378 To update applications using SSL_CTX_set_cert_verify_callback(),
3379 a dummy argument can be added to their callback functions.
3380 [D. K. Smetters <smetters@parc.xerox.com>]
3382 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3383 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3385 *) Add and OPENSSL_LOAD_CONF define which will cause
3386 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3387 This allows older applications to transparently support certain
3388 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3389 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3390 load the config file and OPENSSL_add_all_algorithms_conf() which will
3391 always load it have also been added.
3394 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3395 Adjust NIDs and EVP layer.
3396 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3398 *) Config modules support in openssl utility.
3400 Most commands now load modules from the config file,
3401 though in a few (such as version) this isn't done
3402 because it couldn't be used for anything.
3404 In the case of ca and req the config file used is
3405 the same as the utility itself: that is the -config
3406 command line option can be used to specify an
3410 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3411 use "openssl_conf" if filename is NULL use default openssl config file.
3414 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3415 config section name. Add a new flag to tolerate a missing config file
3416 and move code to CONF_modules_load_file().
3419 *) Support for crypto accelerator cards from Accelerated Encryption
3420 Processing, www.aep.ie. (Use engine 'aep')
3421 The support was copied from 0.9.6c [engine] and adapted/corrected
3422 to work with the new engine framework.
3423 [AEP Inc. and Richard Levitte]
3425 *) Support for SureWare crypto accelerator cards from Baltimore
3426 Technologies. (Use engine 'sureware')
3427 The support was copied from 0.9.6c [engine] and adapted
3428 to work with the new engine framework.
3431 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3432 make the newer ENGINE framework commands for the CHIL engine work.
3433 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3435 *) Make it possible to produce shared libraries on ReliantUNIX.
3436 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3438 *) Add the configuration target debug-linux-ppro.
3439 Make 'openssl rsa' use the general key loading routines
3440 implemented in apps.c, and make those routines able to
3441 handle the key format FORMAT_NETSCAPE and the variant
3443 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3445 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3446 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3448 *) Add -keyform to rsautl, and document -engine.
3449 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3451 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3452 BIO_R_NO_SUCH_FILE error code rather than the generic
3453 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3456 *) Add new functions
3458 ERR_peek_last_error_line
3459 ERR_peek_last_error_line_data.
3460 These are similar to
3463 ERR_peek_error_line_data,
3464 but report on the latest error recorded rather than the first one
3465 still in the error queue.
3466 [Ben Laurie, Bodo Moeller]
3468 *) default_algorithms option in ENGINE config module. This allows things
3470 default_algorithms = ALL
3471 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3474 *) Prelminary ENGINE config module.
3477 *) New experimental application configuration code.
3480 *) Change the AES code to follow the same name structure as all other
3481 symmetric ciphers, and behave the same way. Move everything to
3482 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3483 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3485 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3486 [Ben Laurie and Theo de Raadt]
3488 *) Add option to output public keys in req command.
3489 [Massimiliano Pala madwolf@openca.org]
3491 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3492 (up to about 10% better than before for P-192 and P-224).
3495 *) New functions/macros
3497 SSL_CTX_set_msg_callback(ctx, cb)
3498 SSL_CTX_set_msg_callback_arg(ctx, arg)
3499 SSL_set_msg_callback(ssl, cb)
3500 SSL_set_msg_callback_arg(ssl, arg)
3502 to request calling a callback function
3504 void cb(int write_p, int version, int content_type,
3505 const void *buf, size_t len, SSL *ssl, void *arg)
3507 whenever a protocol message has been completely received
3508 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3509 protocol version according to which the SSL library interprets
3510 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3511 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3512 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3513 specification (change_cipher_spec(20), alert(21), handshake(22)).
3514 'buf' and 'len' point to the actual message, 'ssl' to the
3515 SSL object, and 'arg' is the application-defined value set by
3516 SSL[_CTX]_set_msg_callback_arg().
3518 'openssl s_client' and 'openssl s_server' have new '-msg' options
3519 to enable a callback that displays all protocol messages.
3522 *) Change the shared library support so shared libraries are built as
3523 soon as the corresponding static library is finished, and thereby get
3524 openssl and the test programs linked against the shared library.
3525 This still only happens when the keyword "shard" has been given to
3526 the configuration scripts.
3528 NOTE: shared library support is still an experimental thing, and
3529 backward binary compatibility is still not guaranteed.
3530 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3532 *) Add support for Subject Information Access extension.
3533 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3535 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3536 additional bytes when new memory had to be allocated, not just
3537 when reusing an existing buffer.
3540 *) New command line and configuration option 'utf8' for the req command.
3541 This allows field values to be specified as UTF8 strings.
3544 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3545 runs for the former and machine-readable output for the latter.
3548 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3549 of the e-mail address in the DN (i.e., it will go into a certificate
3550 extension only). The new configuration file option 'email_in_dn = no'
3551 has the same effect.
3552 [Massimiliano Pala madwolf@openca.org]
3554 *) Change all functions with names starting with des_ to be starting
3555 with DES_ instead. Add wrappers that are compatible with libdes,
3556 but are named _ossl_old_des_*. Finally, add macros that map the
3557 des_* symbols to the corresponding _ossl_old_des_* if libdes
3558 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3559 desired, the des_* symbols will be mapped to DES_*, with one
3562 Since we provide two compatibility mappings, the user needs to
3563 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3564 compatibility is desired. The default (i.e., when that macro
3565 isn't defined) is OpenSSL 0.9.6c compatibility.
3567 There are also macros that enable and disable the support of old
3568 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3569 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3570 are defined, the default will apply: to support the old des routines.
3572 In either case, one must include openssl/des.h to get the correct
3573 definitions. Do not try to just include openssl/des_old.h, that
3576 NOTE: This is a major break of an old API into a new one. Software
3577 authors are encouraged to switch to the DES_ style functions. Some
3578 time in the future, des_old.h and the libdes compatibility functions
3579 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3580 default), and then completely removed.
3583 *) Test for certificates which contain unsupported critical extensions.
3584 If such a certificate is found during a verify operation it is
3585 rejected by default: this behaviour can be overridden by either
3586 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3587 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3588 X509_supported_extension() has also been added which returns 1 if a
3589 particular extension is supported.
3592 *) Modify the behaviour of EVP cipher functions in similar way to digests
3593 to retain compatibility with existing code.
3596 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3597 compatibility with existing code. In particular the 'ctx' parameter does
3598 not have to be to be initialized before the call to EVP_DigestInit() and
3599 it is tidied up after a call to EVP_DigestFinal(). New function
3600 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3601 EVP_MD_CTX_copy() changed to not require the destination to be
3602 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3603 requires the destination to be valid.
3605 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3606 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3609 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3610 so that complete 'Handshake' protocol structures are kept in memory
3611 instead of overwriting 'msg_type' and 'length' with 'body' data.
3614 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3615 [Massimo Santin via Richard Levitte]
3617 *) Major restructuring to the underlying ENGINE code. This includes
3618 reduction of linker bloat, separation of pure "ENGINE" manipulation
3619 (initialisation, etc) from functionality dealing with implementations
3620 of specific crypto iterfaces. This change also introduces integrated
3621 support for symmetric ciphers and digest implementations - so ENGINEs
3622 can now accelerate these by providing EVP_CIPHER and EVP_MD
3623 implementations of their own. This is detailed in crypto/engine/README
3624 as it couldn't be adequately described here. However, there are a few
3625 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3626 were changed in the original introduction of ENGINE code have now
3627 reverted back - the hooking from this code to ENGINE is now a good
3628 deal more passive and at run-time, operations deal directly with
3629 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3630 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3631 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3632 they were not being used by the framework as there is no concept of a
3633 BIGNUM_METHOD and they could not be generalised to the new
3634 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3635 ENGINE_cpy() has been removed as it cannot be consistently defined in
3639 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3642 *) Change mkdef.pl to sort symbols that get the same entry number,
3643 and make sure the automatically generated functions ERR_load_*
3644 become part of libeay.num as well.
3647 *) New function SSL_renegotiate_pending(). This returns true once
3648 renegotiation has been requested (either SSL_renegotiate() call
3649 or HelloRequest/ClientHello receveived from the peer) and becomes
3650 false once a handshake has been completed.
3651 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3652 sends a HelloRequest, but does not ensure that a handshake takes
3653 place. SSL_renegotiate_pending() is useful for checking if the
3654 client has followed the request.)
3657 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3658 By default, clients may request session resumption even during
3659 renegotiation (if session ID contexts permit); with this option,
3660 session resumption is possible only in the first handshake.
3662 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3663 more bits available for options that should not be part of
3664 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3667 *) Add some demos for certificate and certificate request creation.
3670 *) Make maximum certificate chain size accepted from the peer application
3671 settable (SSL*_get/set_max_cert_list()), as proposed by
3672 "Douglas E. Engert" <deengert@anl.gov>.
3675 *) Add support for shared libraries for Unixware-7
3676 (Boyd Lynn Gerber <gerberb@zenez.com>).
3679 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3680 be done prior to destruction. Use this to unload error strings from
3681 ENGINEs that load their own error strings. NB: This adds two new API
3682 functions to "get" and "set" this destroy handler in an ENGINE.
3685 *) Alter all existing ENGINE implementations (except "openssl" and
3686 "openbsd") to dynamically instantiate their own error strings. This
3687 makes them more flexible to be built both as statically-linked ENGINEs
3688 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3689 Also, add stub code to each that makes building them as self-contained
3690 shared-libraries easier (see README.ENGINE).
3693 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3694 implementations into applications that are completely implemented in
3695 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3696 commands that can be used to configure what shared-library to load and
3697 to control aspects of the way it is handled. Also, made an update to
3698 the README.ENGINE file that brings its information up-to-date and
3699 provides some information and instructions on the "dynamic" ENGINE
3700 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3703 *) Make it possible to unload ranges of ERR strings with a new
3704 "ERR_unload_strings" function.
3707 *) Add a copy() function to EVP_MD.
3710 *) Make EVP_MD routines take a context pointer instead of just the
3711 md_data void pointer.
3714 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3715 that the digest can only process a single chunk of data
3716 (typically because it is provided by a piece of
3717 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3718 is only going to provide a single chunk of data, and hence the
3719 framework needn't accumulate the data for oneshot drivers.
3722 *) As with "ERR", make it possible to replace the underlying "ex_data"
3723 functions. This change also alters the storage and management of global
3724 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3725 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3726 index counters. The API functions that use this state have been changed
3727 to take a "class_index" rather than pointers to the class's local STACK
3728 and counter, and there is now an API function to dynamically create new
3729 classes. This centralisation allows us to (a) plug a lot of the
3730 thread-safety problems that existed, and (b) makes it possible to clean
3731 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3732 such data would previously have always leaked in application code and
3733 workarounds were in place to make the memory debugging turn a blind eye
3734 to it. Application code that doesn't use this new function will still
3735 leak as before, but their memory debugging output will announce it now
3736 rather than letting it slide.
3738 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3739 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3740 has a return value to indicate success or failure.
3743 *) Make it possible to replace the underlying "ERR" functions such that the
3744 global state (2 LHASH tables and 2 locks) is only used by the "default"
3745 implementation. This change also adds two functions to "get" and "set"
3746 the implementation prior to it being automatically set the first time
3747 any other ERR function takes place. Ie. an application can call "get",
3748 pass the return value to a module it has just loaded, and that module
3749 can call its own "set" function using that value. This means the
3750 module's "ERR" operations will use (and modify) the error state in the
3751 application and not in its own statically linked copy of OpenSSL code.
3754 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3755 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3756 the operation, and provides a more encapsulated way for external code
3757 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3758 to use these functions rather than manually incrementing the counts.
3760 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3763 *) Add EVP test program.
3766 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3769 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3770 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3771 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3772 These allow a CRL to be built without having to access X509_CRL fields
3773 directly. Modify 'ca' application to use new functions.
3776 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3777 bug workarounds. Rollback attack detection is a security feature.
3778 The problem will only arise on OpenSSL servers when TLSv1 is not
3779 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3780 Software authors not wanting to support TLSv1 will have special reasons
3781 for their choice and can explicitly enable this option.
3782 [Bodo Moeller, Lutz Jaenicke]
3784 *) Rationalise EVP so it can be extended: don't include a union of
3785 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3786 (similar to those existing for EVP_CIPHER_CTX).
3791 EVP_MD_CTX_init(&md); /* new function call */
3792 EVP_DigestInit(&md, EVP_sha1());
3793 EVP_DigestUpdate(&md, in, len);
3794 EVP_DigestFinal(&md, out, NULL);
3795 EVP_MD_CTX_cleanup(&md); /* new function call */
3799 *) Make DES key schedule conform to the usual scheme, as well as
3800 correcting its structure. This means that calls to DES functions
3801 now have to pass a pointer to a des_key_schedule instead of a
3802 plain des_key_schedule (which was actually always a pointer
3805 des_key_schedule ks;
3807 des_set_key_checked(..., &ks);
3808 des_ncbc_encrypt(..., &ks, ...);
3810 (Note that a later change renames 'des_...' into 'DES_...'.)
3813 *) Initial reduction of linker bloat: the use of some functions, such as
3814 PEM causes large amounts of unused functions to be linked in due to
3815 poor organisation. For example pem_all.c contains every PEM function
3816 which has a knock on effect of linking in large amounts of (unused)
3817 ASN1 code. Grouping together similar functions and splitting unrelated
3818 functions prevents this.
3821 *) Cleanup of EVP macros.
3824 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3825 correct _ecb suffix.
3828 *) Add initial OCSP responder support to ocsp application. The
3829 revocation information is handled using the text based index
3830 use by the ca application. The responder can either handle
3831 requests generated internally, supplied in files (for example
3832 via a CGI script) or using an internal minimal server.
3835 *) Add configuration choices to get zlib compression for TLS.
3838 *) Changes to Kerberos SSL for RFC 2712 compliance:
3839 1. Implemented real KerberosWrapper, instead of just using
3840 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3841 2. Implemented optional authenticator field of KerberosWrapper.
3843 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3844 and authenticator structs; see crypto/krb5/.
3846 Generalized Kerberos calls to support multiple Kerberos libraries.
3847 [Vern Staats <staatsvr@asc.hpc.mil>,
3848 Jeffrey Altman <jaltman@columbia.edu>
3849 via Richard Levitte]
3851 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3852 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3853 values for each of the key sizes rather than having just
3854 parameters (and 'speed' generating keys each time).
3857 *) Speed up EVP routines.
3860 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3861 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3862 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3863 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3865 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3866 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3867 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3870 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3872 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3875 *) Added the OS2-EMX target.
3876 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3878 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3879 to support NCONF routines in extension code. New function CONF_set_nconf()
3880 to allow functions which take an NCONF to also handle the old LHASH
3881 structure: this means that the old CONF compatible routines can be
3882 retained (in particular wrt extensions) without having to duplicate the
3883 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3886 *) Enhance the general user interface with mechanisms for inner control
3887 and with possibilities to have yes/no kind of prompts.
3890 *) Change all calls to low level digest routines in the library and
3891 applications to use EVP. Add missing calls to HMAC_cleanup() and
3892 don't assume HMAC_CTX can be copied using memcpy().
3893 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3895 *) Add the possibility to control engines through control names but with
3896 arbitrary arguments instead of just a string.
3897 Change the key loaders to take a UI_METHOD instead of a callback
3898 function pointer. NOTE: this breaks binary compatibility with earlier
3899 versions of OpenSSL [engine].
3900 Adapt the nCipher code for these new conditions and add a card insertion
3904 *) Enhance the general user interface with mechanisms to better support
3905 dialog box interfaces, application-defined prompts, the possibility
3906 to use defaults (for example default passwords from somewhere else)
3907 and interrupts/cancellations.
3910 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3911 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3914 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3915 tidy up some unnecessarily weird code in 'sk_new()').
3916 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3918 *) Change the key loading routines for ENGINEs to use the same kind
3919 callback (pem_password_cb) as all other routines that need this
3923 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3924 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3925 than this minimum value is recommended.
3928 *) New random seeder for OpenVMS, using the system process statistics
3929 that are easily reachable.
3932 *) Windows apparently can't transparently handle global
3933 variables defined in DLLs. Initialisations such as:
3935 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3937 wont compile. This is used by the any applications that need to
3938 declare their own ASN1 modules. This was fixed by adding the option
3939 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3940 needed for static libraries under Win32.
3943 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3944 setting of purpose and trust fields. New X509_STORE trust and
3945 purpose functions and tidy up setting in other SSL functions.
3948 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3949 structure. These are inherited by X509_STORE_CTX when it is
3950 initialised. This allows various defaults to be set in the
3951 X509_STORE structure (such as flags for CRL checking and custom
3952 purpose or trust settings) for functions which only use X509_STORE_CTX
3953 internally such as S/MIME.
3955 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3956 trust settings if they are not set in X509_STORE. This allows X509_STORE
3957 purposes and trust (in S/MIME for example) to override any set by default.
3959 Add command line options for CRL checking to smime, s_client and s_server
3963 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3964 are set then the CRL is looked up in the X509_STORE structure and
3965 its validity and signature checked, then if the certificate is found
3966 in the CRL the verify fails with a revoked error.
3968 Various new CRL related callbacks added to X509_STORE_CTX structure.
3970 Command line options added to 'verify' application to support this.
3972 This needs some additional work, such as being able to handle multiple
3973 CRLs with different times, extension based lookup (rather than just
3974 by subject name) and ultimately more complete V2 CRL extension
3978 *) Add a general user interface API (crypto/ui/). This is designed
3979 to replace things like des_read_password and friends (backward
3980 compatibility functions using this new API are provided).
3981 The purpose is to remove prompting functions from the DES code
3982 section as well as provide for prompting through dialog boxes in
3983 a window system and the like.
3986 *) Add "ex_data" support to ENGINE so implementations can add state at a
3987 per-structure level rather than having to store it globally.
3990 *) Make it possible for ENGINE structures to be copied when retrieved by
3991 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3992 This causes the "original" ENGINE structure to act like a template,
3993 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3994 operational state can be localised to each ENGINE structure, despite the
3995 fact they all share the same "methods". New ENGINE structures returned in
3996 this case have no functional references and the return value is the single
3997 structural reference. This matches the single structural reference returned
3998 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4002 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4003 needs to match any other type at all we need to manually clear the
4007 *) Changes to the "openssl engine" utility to include;
4008 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4009 about an ENGINE's available control commands.
4010 - executing control commands from command line arguments using the
4011 '-pre' and '-post' switches. '-post' is only used if '-t' is
4012 specified and the ENGINE is successfully initialised. The syntax for
4013 the individual commands are colon-separated, for example;
4014 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4017 *) New dynamic control command support for ENGINEs. ENGINEs can now
4018 declare their own commands (numbers), names (strings), descriptions,
4019 and input types for run-time discovery by calling applications. A
4020 subset of these commands are implicitly classed as "executable"
4021 depending on their input type, and only these can be invoked through
4022 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4023 can be based on user input, config files, etc). The distinction is
4024 that "executable" commands cannot return anything other than a boolean
4025 result and can only support numeric or string input, whereas some
4026 discoverable commands may only be for direct use through
4027 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4028 pointers, or other custom uses. The "executable" commands are to
4029 support parameterisations of ENGINE behaviour that can be
4030 unambiguously defined by ENGINEs and used consistently across any
4031 OpenSSL-based application. Commands have been added to all the
4032 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4033 control over shared-library paths without source code alterations.
4036 *) Changed all ENGINE implementations to dynamically allocate their
4037 ENGINEs rather than declaring them statically. Apart from this being
4038 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4039 this also allows the implementations to compile without using the
4040 internal engine_int.h header.
4043 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4044 'const' value. Any code that should be able to modify a RAND_METHOD
4045 should already have non-const pointers to it (ie. they should only
4046 modify their own ones).
4049 *) Made a variety of little tweaks to the ENGINE code.
4050 - "atalla" and "ubsec" string definitions were moved from header files
4051 to C code. "nuron" string definitions were placed in variables
4052 rather than hard-coded - allowing parameterisation of these values
4053 later on via ctrl() commands.
4054 - Removed unused "#if 0"'d code.
4055 - Fixed engine list iteration code so it uses ENGINE_free() to release
4056 structural references.
4057 - Constified the RAND_METHOD element of ENGINE structures.
4058 - Constified various get/set functions as appropriate and added
4059 missing functions (including a catch-all ENGINE_cpy that duplicates
4060 all ENGINE values onto a new ENGINE except reference counts/state).
4061 - Removed NULL parameter checks in get/set functions. Setting a method
4062 or function to NULL is a way of cancelling out a previously set
4063 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4064 and doesn't justify the extra error symbols and code.
4065 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4066 flags from engine_int.h to engine.h.
4067 - Changed prototypes for ENGINE handler functions (init(), finish(),
4068 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4071 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4072 to the algorithm using long division. The binary algorithm can be
4073 used only if the modulus is odd. On 32-bit systems, it is faster
4074 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4075 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4076 up to 450 bits. In 64-bit environments, the binary algorithm
4077 appears to be advantageous for much longer moduli; here we use it
4078 for moduli up to 2048 bits.
4081 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4082 could not support the combine flag in choice fields.
4085 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4086 extensions from a certificate request to the certificate.
4089 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4090 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4091 file: this allows the display of the certificate about to be
4092 signed to be customised, to allow certain fields to be included
4093 or excluded and extension details. The old system didn't display
4094 multicharacter strings properly, omitted fields not in the policy
4095 and couldn't display additional details such as extensions.
4098 *) Function EC_POINTs_mul for multiple scalar multiplication
4099 of an arbitrary number of elliptic curve points
4100 \sum scalars[i]*points[i],
4101 optionally including the generator defined for the EC_GROUP:
4102 scalar*generator + \sum scalars[i]*points[i].
4104 EC_POINT_mul is a simple wrapper function for the typical case
4105 that the point list has just one item (besides the optional
4109 *) First EC_METHODs for curves over GF(p):
4111 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4112 operations and provides various method functions that can also
4113 operate with faster implementations of modular arithmetic.
4115 EC_GFp_mont_method() reuses most functions that are part of
4116 EC_GFp_simple_method, but uses Montgomery arithmetic.
4118 [Bodo Moeller; point addition and point doubling
4119 implementation directly derived from source code provided by
4120 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4122 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4123 crypto/ec/ec_lib.c):
4125 Curves are EC_GROUP objects (with an optional group generator)
4126 based on EC_METHODs that are built into the library.
4128 Points are EC_POINT objects based on EC_GROUP objects.
4130 Most of the framework would be able to handle curves over arbitrary
4131 finite fields, but as there are no obvious types for fields other
4132 than GF(p), some functions are limited to that for now.
4135 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4136 that the file contains a complete HTTP response.
4139 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4140 change the def and num file printf format specifier from "%-40sXXX"
4141 to "%-39s XXX". The latter will always guarantee a space after the
4142 field while the former will cause them to run together if the field
4143 is 40 of more characters long.
4146 *) Constify the cipher and digest 'method' functions and structures
4147 and modify related functions to take constant EVP_MD and EVP_CIPHER
4151 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4152 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4155 *) Modify EVP_Digest*() routines so they now return values. Although the
4156 internal software routines can never fail additional hardware versions
4160 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4162 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4163 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4166 ERR_R_NESTED_ASN1_ERROR
4168 ERR_R_MISSING_ASN1_EOS
4169 were 4 .. 9, conflicting with
4170 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4172 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4173 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4175 Add new error code 'ERR_R_INTERNAL_ERROR'.
4178 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4182 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4183 sets the subject name for a new request or supersedes the
4184 subject name in a given request. Formats that can be parsed are
4185 'CN=Some Name, OU=myOU, C=IT'
4187 'CN=Some Name/OU=myOU/C=IT'.
4189 Add options '-batch' and '-verbose' to 'openssl req'.
4190 [Massimiliano Pala <madwolf@hackmasters.net>]
4192 *) Introduce the possibility to access global variables through
4193 functions on platform were that's the best way to handle exporting
4194 global variables in shared libraries. To enable this functionality,
4195 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4196 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4197 is normally done by Configure or something similar).
4199 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4200 in the source file (foo.c) like this:
4202 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4203 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4205 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4206 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4208 OPENSSL_DECLARE_GLOBAL(int,foo);
4209 #define foo OPENSSL_GLOBAL_REF(foo)
4210 OPENSSL_DECLARE_GLOBAL(double,bar);
4211 #define bar OPENSSL_GLOBAL_REF(bar)
4213 The #defines are very important, and therefore so is including the
4214 header file everywhere where the defined globals are used.
4216 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4217 of ASN.1 items, but that structure is a bit different.
4219 The largest change is in util/mkdef.pl which has been enhanced with
4220 better and easier to understand logic to choose which symbols should
4221 go into the Windows .def files as well as a number of fixes and code
4222 cleanup (among others, algorithm keywords are now sorted
4223 lexicographically to avoid constant rewrites).
4226 *) In BN_div() keep a copy of the sign of 'num' before writing the
4227 result to 'rm' because if rm==num the value will be overwritten
4228 and produce the wrong result if 'num' is negative: this caused
4229 problems with BN_mod() and BN_nnmod().
4232 *) Function OCSP_request_verify(). This checks the signature on an
4233 OCSP request and verifies the signer certificate. The signer
4234 certificate is just checked for a generic purpose and OCSP request
4238 *) Add OCSP_check_validity() function to check the validity of OCSP
4239 responses. OCSP responses are prepared in real time and may only
4240 be a few seconds old. Simply checking that the current time lies
4241 between thisUpdate and nextUpdate max reject otherwise valid responses
4242 caused by either OCSP responder or client clock inaccuracy. Instead
4243 we allow thisUpdate and nextUpdate to fall within a certain period of
4244 the current time. The age of the response can also optionally be
4245 checked. Two new options -validity_period and -status_age added to
4249 *) If signature or public key algorithm is unrecognized print out its
4250 OID rather that just UNKNOWN.
4253 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4254 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4255 ID to be generated from the issuer certificate alone which can then be
4256 passed to OCSP_id_issuer_cmp().
4259 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4260 ASN1 modules to export functions returning ASN1_ITEM pointers
4261 instead of the ASN1_ITEM structures themselves. This adds several
4262 new macros which allow the underlying ASN1 function/structure to
4263 be accessed transparently. As a result code should not use ASN1_ITEM
4264 references directly (such as &X509_it) but instead use the relevant
4265 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4266 use of the new ASN1 code on platforms where exporting structures
4267 is problematical (for example in shared libraries) but exporting
4268 functions returning pointers to structures is not.
4271 *) Add support for overriding the generation of SSL/TLS session IDs.
4272 These callbacks can be registered either in an SSL_CTX or per SSL.
4273 The purpose of this is to allow applications to control, if they wish,
4274 the arbitrary values chosen for use as session IDs, particularly as it
4275 can be useful for session caching in multiple-server environments. A
4276 command-line switch for testing this (and any client code that wishes
4277 to use such a feature) has been added to "s_server".
4278 [Geoff Thorpe, Lutz Jaenicke]
4280 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4281 of the form '#if defined(...) || defined(...) || ...' and
4282 '#if !defined(...) && !defined(...) && ...'. This also avoids
4283 the growing number of special cases it was previously handling.
4286 *) Make all configuration macros available for application by making
4287 sure they are available in opensslconf.h, by giving them names starting
4288 with "OPENSSL_" to avoid conflicts with other packages and by making
4289 sure e_os2.h will cover all platform-specific cases together with
4291 Additionally, it is now possible to define configuration/platform-
4292 specific names (called "system identities"). In the C code, these
4293 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4294 macro with the name beginning with "OPENSSL_SYS_", which is determined
4295 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4299 *) New option -set_serial to 'req' and 'x509' this allows the serial
4300 number to use to be specified on the command line. Previously self
4301 signed certificates were hard coded with serial number 0 and the
4302 CA options of 'x509' had to use a serial number in a file which was
4306 *) New options to 'ca' utility to support V2 CRL entry extensions.
4307 Currently CRL reason, invalidity date and hold instruction are
4308 supported. Add new CRL extensions to V3 code and some new objects.
4311 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4312 disable standard block padding (aka PKCS#5 padding) in the EVP
4313 API, which was previously mandatory. This means that the data is
4314 not padded in any way and so the total length much be a multiple
4315 of the block size, otherwise an error occurs.
4318 *) Initial (incomplete) OCSP SSL support.
4321 *) New function OCSP_parse_url(). This splits up a URL into its host,
4322 port and path components: primarily to parse OCSP URLs. New -url
4323 option to ocsp utility.
4326 *) New nonce behavior. The return value of OCSP_check_nonce() now
4327 reflects the various checks performed. Applications can decide
4328 whether to tolerate certain situations such as an absent nonce
4329 in a response when one was present in a request: the ocsp application
4330 just prints out a warning. New function OCSP_add1_basic_nonce()
4331 this is to allow responders to include a nonce in a response even if
4332 the request is nonce-less.
4335 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4336 skipped when using openssl x509 multiple times on a single input file,
4337 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4340 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4341 set string type: to handle setting ASN1_TIME structures. Fix ca
4342 utility to correctly initialize revocation date of CRLs.
4345 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4346 the clients preferred ciphersuites and rather use its own preferences.
4347 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4348 Internet Explorer by ensuring unchanged hash method during stepup.
4349 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4352 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4353 to aes and add a new 'exist' option to print out symbols that don't
4357 *) Additional options to ocsp utility to allow flags to be set and
4358 additional certificates supplied.
4361 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4362 OCSP client a number of certificate to only verify the response
4366 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4367 handle the new API. Currently only ECB, CBC modes supported. Add new
4370 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4371 Encryption Standard (AES) Ciphersuites for Transport Layer
4372 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4373 not enabled by default and were not part of the "ALL" ciphersuite
4374 alias because they were not yet official; they could be
4375 explicitly requested by specifying the "AESdraft" ciphersuite
4376 group alias. In the final release of OpenSSL 0.9.7, the group
4377 alias is called "AES" and is part of "ALL".)
4378 [Ben Laurie, Steve Henson, Bodo Moeller]
4380 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4381 request to response.
4384 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4385 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4386 extract information from a certificate request. OCSP_response_create()
4387 creates a response and optionally adds a basic response structure.
4388 OCSP_basic_add1_status() adds a complete single response to a basic
4389 response and returns the OCSP_SINGLERESP structure just added (to allow
4390 extensions to be included for example). OCSP_basic_add1_cert() adds a
4391 certificate to a basic response and OCSP_basic_sign() signs a basic
4392 response with various flags. New helper functions ASN1_TIME_check()
4393 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4394 (converts ASN1_TIME to GeneralizedTime).
4397 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4398 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4399 structure from a certificate. X509_pubkey_digest() digests the public_key
4400 contents: this is used in various key identifiers.
4403 *) Make sk_sort() tolerate a NULL argument.
4404 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4406 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4407 passed by the function are trusted implicitly. If any of them signed the
4408 response then it is assumed to be valid and is not verified.
4411 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4412 to data. This was previously part of the PKCS7 ASN1 code. This
4413 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4414 [Steve Henson, reported by Kenneth R. Robinette
4415 <support@securenetterm.com>]
4417 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4418 routines: without these tracing memory leaks is very painful.
4419 Fix leaks in PKCS12 and PKCS7 routines.
4422 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4423 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4424 effectively meant GeneralizedTime would never be used. Now it
4425 is initialised to -1 but X509_time_adj() now has to check the value
4426 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4427 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4428 [Steve Henson, reported by Kenneth R. Robinette
4429 <support@securenetterm.com>]
4431 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4432 result in a zero length in the ASN1_INTEGER structure which was
4433 not consistent with the structure when d2i_ASN1_INTEGER() was used
4434 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4435 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4436 where it did not print out a minus for negative ASN1_INTEGER.
4439 *) Add summary printout to ocsp utility. The various functions which
4440 convert status values to strings have been renamed to:
4441 OCSP_response_status_str(), OCSP_cert_status_str() and
4442 OCSP_crl_reason_str() and are no longer static. New options
4443 to verify nonce values and to disable verification. OCSP response
4444 printout format cleaned up.
4447 *) Add additional OCSP certificate checks. These are those specified
4448 in RFC2560. This consists of two separate checks: the CA of the
4449 certificate being checked must either be the OCSP signer certificate
4450 or the issuer of the OCSP signer certificate. In the latter case the
4451 OCSP signer certificate must contain the OCSP signing extended key
4452 usage. This check is performed by attempting to match the OCSP
4453 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4454 in the OCSP_CERTID structures of the response.
4457 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4458 and related routines. This uses the standard OpenSSL certificate
4459 verify routines to perform initial checks (just CA validity) and
4460 to obtain the certificate chain. Then additional checks will be
4461 performed on the chain. Currently the root CA is checked to see
4462 if it is explicitly trusted for OCSP signing. This is used to set
4463 a root CA as a global signing root: that is any certificate that
4464 chains to that CA is an acceptable OCSP signing certificate.
4467 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4468 extensions from a separate configuration file.
4469 As when reading extensions from the main configuration file,
4470 the '-extensions ...' option may be used for specifying the
4472 [Massimiliano Pala <madwolf@comune.modena.it>]
4474 *) New OCSP utility. Allows OCSP requests to be generated or
4475 read. The request can be sent to a responder and the output
4476 parsed, outputed or printed in text form. Not complete yet:
4477 still needs to check the OCSP response validity.
4480 *) New subcommands for 'openssl ca':
4481 'openssl ca -status <serial>' prints the status of the cert with
4482 the given serial number (according to the index file).
4483 'openssl ca -updatedb' updates the expiry status of certificates
4485 [Massimiliano Pala <madwolf@comune.modena.it>]
4487 *) New '-newreq-nodes' command option to CA.pl. This is like
4488 '-newreq', but calls 'openssl req' with the '-nodes' option
4489 so that the resulting key is not encrypted.
4490 [Damien Miller <djm@mindrot.org>]
4492 *) New configuration for the GNU Hurd.
4493 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4495 *) Initial code to implement OCSP basic response verify. This
4496 is currently incomplete. Currently just finds the signer's
4497 certificate and verifies the signature on the response.
4500 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4501 value of OPENSSLDIR. This is available via the new '-d' option
4502 to 'openssl version', and is also included in 'openssl version -a'.
4505 *) Allowing defining memory allocation callbacks that will be given
4506 file name and line number information in additional arguments
4507 (a const char* and an int). The basic functionality remains, as
4508 well as the original possibility to just replace malloc(),
4509 realloc() and free() by functions that do not know about these
4510 additional arguments. To register and find out the current
4511 settings for extended allocation functions, the following
4512 functions are provided:
4514 CRYPTO_set_mem_ex_functions
4515 CRYPTO_set_locked_mem_ex_functions
4516 CRYPTO_get_mem_ex_functions
4517 CRYPTO_get_locked_mem_ex_functions
4519 These work the same way as CRYPTO_set_mem_functions and friends.
4520 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4521 extended allocation function is enabled.
4522 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4523 a conventional allocation function is enabled.
4524 [Richard Levitte, Bodo Moeller]
4526 *) Finish off removing the remaining LHASH function pointer casts.
4527 There should no longer be any prototype-casting required when using
4528 the LHASH abstraction, and any casts that remain are "bugs". See
4529 the callback types and macros at the head of lhash.h for details
4530 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4533 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4534 If /dev/[u]random devices are not available or do not return enough
4535 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4537 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4538 /etc/entropy will be queried once each in this sequence, quering stops
4539 when enough entropy was collected without querying more sockets.
4542 *) Change the Unix RAND_poll() variant to be able to poll several
4543 random devices, as specified by DEVRANDOM, until a sufficient amount
4544 of data has been collected. We spend at most 10 ms on each file
4545 (select timeout) and read in non-blocking mode. DEVRANDOM now
4546 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4547 (previously it was just the string "/dev/urandom"), so on typical
4548 platforms the 10 ms delay will never occur.
4549 Also separate out the Unix variant to its own file, rand_unix.c.
4550 For VMS, there's a currently-empty rand_vms.c.
4553 *) Move OCSP client related routines to ocsp_cl.c. These
4554 provide utility functions which an application needing
4555 to issue a request to an OCSP responder and analyse the
4556 response will typically need: as opposed to those which an
4557 OCSP responder itself would need which will be added later.
4559 OCSP_request_sign() signs an OCSP request with an API similar
4560 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4561 response. OCSP_response_get1_basic() extracts basic response
4562 from response. OCSP_resp_find_status(): finds and extracts status
4563 information from an OCSP_CERTID structure (which will be created
4564 when the request structure is built). These are built from lower
4565 level functions which work on OCSP_SINGLERESP structures but
4566 wont normally be used unless the application wishes to examine
4567 extensions in the OCSP response for example.
4569 Replace nonce routines with a pair of functions.
4570 OCSP_request_add1_nonce() adds a nonce value and optionally
4571 generates a random value. OCSP_check_nonce() checks the
4572 validity of the nonce in an OCSP response.
4575 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4576 This doesn't copy the supplied OCSP_CERTID and avoids the
4577 need to free up the newly created id. Change return type
4578 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4579 This can then be used to add extensions to the request.
4580 Deleted OCSP_request_new(), since most of its functionality
4581 is now in OCSP_REQUEST_new() (and the case insensitive name
4582 clash) apart from the ability to set the request name which
4583 will be added elsewhere.
4586 *) Update OCSP API. Remove obsolete extensions argument from
4587 various functions. Extensions are now handled using the new
4588 OCSP extension code. New simple OCSP HTTP function which
4589 can be used to send requests and parse the response.
4592 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4593 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4594 uses the special reorder version of SET OF to sort the attributes
4595 and reorder them to match the encoded order. This resolves a long
4596 standing problem: a verify on a PKCS7 structure just after signing
4597 it used to fail because the attribute order did not match the
4598 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4599 it uses the received order. This is necessary to tolerate some broken
4600 software that does not order SET OF. This is handled by encoding
4601 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4602 to produce the required SET OF.
4605 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4606 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4607 files to get correct declarations of the ASN.1 item variables.
4610 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4611 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4612 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4613 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4614 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4615 ASN1_ITEM and no wrapper functions.
4618 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4619 replace the old function pointer based I/O routines. Change most of
4620 the *_d2i_bio() and *_d2i_fp() functions to use these.
4623 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4624 lines, recognice more "algorithms" that can be deselected, and make
4625 it complain about algorithm deselection that isn't recognised.
4628 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4629 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4630 to use new functions. Add NO_ASN1_OLD which can be set to remove
4631 some old style ASN1 functions: this can be used to determine if old
4632 code will still work when these eventually go away.
4635 *) New extension functions for OCSP structures, these follow the
4636 same conventions as certificates and CRLs.
4639 *) New function X509V3_add1_i2d(). This automatically encodes and
4640 adds an extension. Its behaviour can be customised with various
4641 flags to append, replace or delete. Various wrappers added for
4642 certifcates and CRLs.
4645 *) Fix to avoid calling the underlying ASN1 print routine when
4646 an extension cannot be parsed. Correct a typo in the
4647 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4650 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4651 entries for variables.
4654 *) Add functionality to apps/openssl.c for detecting locking
4655 problems: As the program is single-threaded, all we have
4656 to do is register a locking callback using an array for
4657 storing which locks are currently held by the program.
4660 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4661 SSL_get_ex_data_X509_STORE_idx(), which is used in
4662 ssl_verify_cert_chain() and thus can be called at any time
4663 during TLS/SSL handshakes so that thread-safety is essential.
4664 Unfortunately, the ex_data design is not at all suited
4665 for multi-threaded use, so it probably should be abolished.
4668 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4669 [Broadcom, tweaked and integrated by Geoff Thorpe]
4671 *) Move common extension printing code to new function
4672 X509V3_print_extensions(). Reorganise OCSP print routines and
4673 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4676 *) New function X509_signature_print() to remove duplication in some
4680 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4681 set (this was treated exactly the same as SET OF previously). This
4682 is used to reorder the STACK representing the structure to match the
4683 encoding. This will be used to get round a problem where a PKCS7
4684 structure which was signed could not be verified because the STACK
4685 order did not reflect the encoded order.
4688 *) Reimplement the OCSP ASN1 module using the new code.
4691 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4692 for its ASN1 operations. The old style function pointers still exist
4693 for now but they will eventually go away.
4696 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4697 completely replaces the old ASN1 functionality with a table driven
4698 encoder and decoder which interprets an ASN1_ITEM structure describing
4699 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4700 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4701 has also been converted to the new form.
4704 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4705 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4706 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4707 for negative moduli.
4710 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4711 of not touching the result's sign bit.
4714 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4718 *) Changed the LHASH code to use prototypes for callbacks, and created
4719 macros to declare and implement thin (optionally static) functions
4720 that provide type-safety and avoid function pointer casting for the
4721 type-specific callbacks.
4724 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4726 [Veers Staats <staatsvr@asc.hpc.mil>,
4727 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4729 *) Reformat the FAQ so the different questions and answers can be divided
4730 in sections depending on the subject.
4733 *) Have the zlib compression code load ZLIB.DLL dynamically under
4737 *) New function BN_mod_sqrt for computing square roots modulo a prime
4738 (using the probabilistic Tonelli-Shanks algorithm unless
4739 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4740 be handled deterministically).
4741 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4743 *) Make BN_mod_inverse faster by explicitly handling small quotients
4744 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4745 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4748 *) New function BN_kronecker.
4751 *) Fix BN_gcd so that it works on negative inputs; the result is
4752 positive unless both parameters are zero.
4753 Previously something reasonably close to an infinite loop was
4754 possible because numbers could be growing instead of shrinking
4755 in the implementation of Euclid's algorithm.
4758 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4759 sign of the number in question.
4761 Fix BN_is_word(a,w) to work correctly for w == 0.
4763 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4764 because its test if the absolute value of 'a' equals 'w'.
4765 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4766 it exists mostly for use in the implementations of BN_is_zero(),
4767 BN_is_one(), and BN_is_word().
4770 *) New function BN_swap.
4773 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4774 the exponentiation functions are more likely to produce reasonable
4775 results on negative inputs.
4778 *) Change BN_mod_mul so that the result is always non-negative.
4779 Previously, it could be negative if one of the factors was negative;
4780 I don't think anyone really wanted that behaviour.
4783 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4784 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4785 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4786 and add new functions:
4795 BN_mod_lshift1_quick
4799 These functions always generate non-negative results.
4801 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4802 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4804 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4805 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4806 be reduced modulo m.
4807 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4810 The following entry accidentily appeared in the CHANGES file
4811 distributed with OpenSSL 0.9.7. The modifications described in
4812 it do *not* apply to OpenSSL 0.9.7.
4814 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4815 was actually never needed) and in BN_mul(). The removal in BN_mul()
4816 required a small change in bn_mul_part_recursive() and the addition
4817 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4818 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4819 bn_sub_words() and bn_add_words() except they take arrays with
4824 *) In 'openssl passwd', verify passwords read from the terminal
4825 unless the '-salt' option is used (which usually means that
4826 verification would just waste user's time since the resulting
4827 hash is going to be compared with some given password hash)
4828 or the new '-noverify' option is used.
4830 This is an incompatible change, but it does not affect
4831 non-interactive use of 'openssl passwd' (passwords on the command
4832 line, '-stdin' option, '-in ...' option) and thus should not
4836 *) Remove all references to RSAref, since there's no more need for it.
4839 *) Make DSO load along a path given through an environment variable
4840 (SHLIB_PATH) with shl_load().
4843 *) Constify the ENGINE code as a result of BIGNUM constification.
4844 Also constify the RSA code and most things related to it. In a
4845 few places, most notable in the depth of the ASN.1 code, ugly
4846 casts back to non-const were required (to be solved at a later
4850 *) Make it so the openssl application has all engines loaded by default.
4853 *) Constify the BIGNUM routines a little more.
4856 *) Add the following functions:
4858 ENGINE_load_cswift()
4860 ENGINE_load_atalla()
4862 ENGINE_load_builtin_engines()
4864 That way, an application can itself choose if external engines that
4865 are built-in in OpenSSL shall ever be used or not. The benefit is
4866 that applications won't have to be linked with libdl or other dso
4867 libraries unless it's really needed.
4869 Changed 'openssl engine' to load all engines on demand.
4870 Changed the engine header files to avoid the duplication of some
4871 declarations (they differed!).
4874 *) 'openssl engine' can now list capabilities.
4877 *) Better error reporting in 'openssl engine'.
4880 *) Never call load_dh_param(NULL) in s_server.
4883 *) Add engine application. It can currently list engines by name and
4884 identity, and test if they are actually available.
4887 *) Improve RPM specification file by forcing symbolic linking and making
4888 sure the installed documentation is also owned by root.root.
4889 [Damien Miller <djm@mindrot.org>]
4891 *) Give the OpenSSL applications more possibilities to make use of
4892 keys (public as well as private) handled by engines.
4895 *) Add OCSP code that comes from CertCo.
4898 *) Add VMS support for the Rijndael code.
4901 *) Added untested support for Nuron crypto accelerator.
4904 *) Add support for external cryptographic devices. This code was
4905 previously distributed separately as the "engine" branch.
4906 [Geoff Thorpe, Richard Levitte]
4908 *) Rework the filename-translation in the DSO code. It is now possible to
4909 have far greater control over how a "name" is turned into a filename
4910 depending on the operating environment and any oddities about the
4911 different shared library filenames on each system.
4914 *) Support threads on FreeBSD-elf in Configure.
4917 *) Fix for SHA1 assembly problem with MASM: it produces
4918 warnings about corrupt line number information when assembling
4919 with debugging information. This is caused by the overlapping
4921 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4924 NCONF_get_number() has no error checking at all. As a replacement,
4925 NCONF_get_number_e() is defined (_e for "error checking") and is
4926 promoted strongly. The old NCONF_get_number is kept around for
4927 binary backward compatibility.
4928 Make it possible for methods to load from something other than a BIO,
4929 by providing a function pointer that is given a name instead of a BIO.
4930 For example, this could be used to load configuration data from an
4934 *) Fix for non blocking accept BIOs. Added new I/O special reason
4935 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4936 with non blocking I/O was not possible because no retry code was
4937 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4941 *) Added the beginnings of Rijndael support.
4944 *) Fix for bug in DirectoryString mask setting. Add support for
4945 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4946 to allow certificate printing to more controllable, additional
4947 'certopt' option to 'x509' to allow new printing options to be
4951 *) Clean old EAY MD5 hack from e_os.h.
4954 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4956 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4957 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4958 [Joe Orton, Steve Henson]
4960 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4962 *) Fix additional bug revealed by the NISCC test suite:
4964 Stop bug triggering large recursion when presented with
4965 certain ASN.1 tags (CVE-2003-0851)
4968 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4970 *) Fix various bugs revealed by running the NISCC test suite:
4972 Stop out of bounds reads in the ASN1 code when presented with
4973 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4975 If verify callback ignores invalid public key errors don't try to check
4976 certificate signature with the NULL public key.
4980 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4981 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4985 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4986 extra data after the compression methods not only for TLS 1.0
4987 but also for SSL 3.0 (as required by the specification).
4988 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4990 *) Change X509_certificate_type() to mark the key as exported/exportable
4991 when it's 512 *bits* long, not 512 bytes.
4994 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4996 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4997 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4998 a protocol version number mismatch like a decryption error
4999 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5002 *) Turn on RSA blinding by default in the default implementation
5003 to avoid a timing attack. Applications that don't want it can call
5004 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5005 They would be ill-advised to do so in most cases.
5006 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5008 *) Change RSA blinding code so that it works when the PRNG is not
5009 seeded (in this case, the secret RSA exponent is abused as
5010 an unpredictable seed -- if it is not unpredictable, there
5011 is no point in blinding anyway). Make RSA blinding thread-safe
5012 by remembering the creator's thread ID in rsa->blinding and
5013 having all other threads use local one-time blinding factors
5014 (this requires more computation than sharing rsa->blinding, but
5015 avoids excessive locking; and if an RSA object is not shared
5016 between threads, blinding will still be very fast).
5019 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5021 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5022 via timing by performing a MAC computation even if incorrrect
5023 block cipher padding has been found. This is a countermeasure
5024 against active attacks where the attacker has to distinguish
5025 between bad padding and a MAC verification error. (CVE-2003-0078)
5027 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5028 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5029 Martin Vuagnoux (EPFL, Ilion)]
5031 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5033 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5034 memory from it's contents. This is done with a counter that will
5035 place alternating values in each byte. This can be used to solve
5036 two issues: 1) the removal of calls to memset() by highly optimizing
5037 compilers, and 2) cleansing with other values than 0, since those can
5038 be read through on certain media, for example a swap space on disk.
5041 *) Bugfix: client side session caching did not work with external caching,
5042 because the session->cipher setting was not restored when reloading
5043 from the external cache. This problem was masked, when
5044 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5045 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5048 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5049 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5050 [Zeev Lieber <zeev-l@yahoo.com>]
5052 *) Undo an undocumented change introduced in 0.9.6e which caused
5053 repeated calls to OpenSSL_add_all_ciphers() and
5054 OpenSSL_add_all_digests() to be ignored, even after calling
5058 *) Change the default configuration reader to deal with last line not
5059 being properly terminated.
5062 *) Change X509_NAME_cmp() so it applies the special rules on handling
5063 DN values that are of type PrintableString, as well as RDNs of type
5064 emailAddress where the value has the type ia5String.
5065 [stefank@valicert.com via Richard Levitte]
5067 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5068 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5069 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5070 the bitwise-OR of the two for use by the majority of applications
5071 wanting this behaviour, and update the docs. The documented
5072 behaviour and actual behaviour were inconsistent and had been
5073 changing anyway, so this is more a bug-fix than a behavioural
5075 [Geoff Thorpe, diagnosed by Nadav Har'El]
5077 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5078 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5081 *) Fix initialization code race conditions in
5082 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5083 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5084 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5085 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5086 ssl2_get_cipher_by_char(),
5087 ssl3_get_cipher_by_char().
5088 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5090 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5091 the cached sessions are flushed, as the remove_cb() might use ex_data
5092 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5093 (see [openssl.org #212]).
5094 [Geoff Thorpe, Lutz Jaenicke]
5096 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5097 length, instead of the encoding length to d2i_ASN1_OBJECT.
5100 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5102 *) [In 0.9.6g-engine release:]
5103 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5104 [Lynn Gazis <lgazis@rainbow.com>]
5106 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5108 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5109 and get fix the header length calculation.
5110 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5111 Alon Kantor <alonk@checkpoint.com> (and others),
5114 *) Use proper error handling instead of 'assertions' in buffer
5115 overflow checks added in 0.9.6e. This prevents DoS (the
5116 assertions could call abort()).
5117 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5119 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5121 *) Add various sanity checks to asn1_get_length() to reject
5122 the ASN1 length bytes if they exceed sizeof(long), will appear
5123 negative or the content length exceeds the length of the
5125 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5127 *) Fix cipher selection routines: ciphers without encryption had no flags
5128 for the cipher strength set and where therefore not handled correctly
5129 by the selection routines (PR #130).
5132 *) Fix EVP_dsa_sha macro.
5136 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5137 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5138 that was added in OpenSSL 0.9.6d.
5140 As the countermeasure turned out to be incompatible with some
5141 broken SSL implementations, the new option is part of SSL_OP_ALL.
5142 SSL_OP_ALL is usually employed when compatibility with weird SSL
5143 implementations is desired (e.g. '-bugs' option to 's_client' and
5144 's_server'), so the new option is automatically set in many
5148 *) Changes in security patch:
5150 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5151 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5152 Air Force Materiel Command, USAF, under agreement number
5155 *) Add various sanity checks to asn1_get_length() to reject
5156 the ASN1 length bytes if they exceed sizeof(long), will appear
5157 negative or the content length exceeds the length of the
5158 supplied buffer. (CVE-2002-0659)
5159 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5161 *) Assertions for various potential buffer overflows, not known to
5163 [Ben Laurie (CHATS)]
5165 *) Various temporary buffers to hold ASCII versions of integers were
5166 too small for 64 bit platforms. (CVE-2002-0655)
5167 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5169 *) Remote buffer overflow in SSL3 protocol - an attacker could
5170 supply an oversized session ID to a client. (CVE-2002-0656)
5171 [Ben Laurie (CHATS)]
5173 *) Remote buffer overflow in SSL2 protocol - an attacker could
5174 supply an oversized client master key. (CVE-2002-0656)
5175 [Ben Laurie (CHATS)]
5177 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5179 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5180 encoded as NULL) with id-dsa-with-sha1.
5181 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5183 *) Check various X509_...() return values in apps/req.c.
5184 [Nils Larsch <nla@trustcenter.de>]
5186 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5187 an end-of-file condition would erronously be flagged, when the CRLF
5188 was just at the end of a processed block. The bug was discovered when
5189 processing data through a buffering memory BIO handing the data to a
5190 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5191 <ptsekov@syntrex.com> and Nedelcho Stanev.
5194 *) Implement a countermeasure against a vulnerability recently found
5195 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5196 before application data chunks to avoid the use of known IVs
5197 with data potentially chosen by the attacker.
5200 *) Fix length checks in ssl3_get_client_hello().
5203 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5204 to prevent ssl3_read_internal() from incorrectly assuming that
5205 ssl3_read_bytes() found application data while handshake
5206 processing was enabled when in fact s->s3->in_read_app_data was
5207 merely automatically cleared during the initial handshake.
5208 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5210 *) Fix object definitions for Private and Enterprise: they were not
5211 recognized in their shortname (=lowercase) representation. Extend
5212 obj_dat.pl to issue an error when using undefined keywords instead
5213 of silently ignoring the problem (Svenning Sorensen
5214 <sss@sss.dnsalias.net>).
5217 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5218 generators, i.e. generators other than 2 and 5. (Previously, the
5219 code did not properly initialise the 'add' and 'rem' values to
5220 BN_generate_prime().)
5222 In the new general case, we do not insist that 'generator' is
5223 actually a primitive root: This requirement is rather pointless;
5224 a generator of the order-q subgroup is just as good, if not
5228 *) Map new X509 verification errors to alerts. Discovered and submitted by
5229 Tom Wu <tom@arcot.com>.
5232 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5233 returning non-zero before the data has been completely received
5234 when using non-blocking I/O.
5235 [Bodo Moeller; problem pointed out by John Hughes]
5237 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5238 [Ben Laurie, Lutz Jaenicke]
5240 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5241 Yoram Zahavi <YoramZ@gilian.com>).
5244 *) Add information about CygWin 1.3 and on, and preserve proper
5245 configuration for the versions before that.
5246 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5248 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5249 check whether we deal with a copy of a session and do not delete from
5250 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5251 <izhar@checkpoint.com>.
5254 *) Do not store session data into the internal session cache, if it
5255 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5256 flag is set). Proposed by Aslam <aslam@funk.com>.
5259 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5263 *) [In 0.9.6d-engine release:]
5264 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5265 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5267 *) Add the configuration target linux-s390x.
5268 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5270 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5271 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5272 variable as an indication that a ClientHello message has been
5273 received. As the flag value will be lost between multiple
5274 invocations of ssl3_accept when using non-blocking I/O, the
5275 function may not be aware that a handshake has actually taken
5276 place, thus preventing a new session from being added to the
5279 To avoid this problem, we now set s->new_session to 2 instead of
5280 using a local variable.
5281 [Lutz Jaenicke, Bodo Moeller]
5283 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5284 if the SSL_R_LENGTH_MISMATCH error is detected.
5285 [Geoff Thorpe, Bodo Moeller]
5287 *) New 'shared_ldflag' column in Configure platform table.
5290 *) Fix EVP_CIPHER_mode macro.
5291 ["Dan S. Camper" <dan@bti.net>]
5293 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5294 type, we must throw them away by setting rr->length to 0.
5295 [D P Chang <dpc@qualys.com>]
5297 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5299 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5300 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5301 worked incorrectly for those cases where range = 10..._2 and
5302 3*range is two bits longer than range.)
5305 *) Only add signing time to PKCS7 structures if it is not already
5309 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5310 OBJ_ld_ce should be OBJ_id_ce.
5311 Also some ip-pda OIDs in crypto/objects/objects.txt were
5312 incorrect (cf. RFC 3039).
5313 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5315 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5316 returns early because it has nothing to do.
5317 [Andy Schneider <andy.schneider@bjss.co.uk>]
5319 *) [In 0.9.6c-engine release:]
5320 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5321 [Andy Schneider <andy.schneider@bjss.co.uk>]
5323 *) [In 0.9.6c-engine release:]
5324 Add support for Cryptographic Appliance's keyserver technology.
5325 (Use engine 'keyclient')
5326 [Cryptographic Appliances and Geoff Thorpe]
5328 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5329 is called via tools/c89.sh because arguments have to be
5330 rearranged (all '-L' options must appear before the first object
5332 [Richard Shapiro <rshapiro@abinitio.com>]
5334 *) [In 0.9.6c-engine release:]
5335 Add support for Broadcom crypto accelerator cards, backported
5337 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5339 *) [In 0.9.6c-engine release:]
5340 Add support for SureWare crypto accelerator cards from
5341 Baltimore Technologies. (Use engine 'sureware')
5342 [Baltimore Technologies and Mark Cox]
5344 *) [In 0.9.6c-engine release:]
5345 Add support for crypto accelerator cards from Accelerated
5346 Encryption Processing, www.aep.ie. (Use engine 'aep')
5347 [AEP Inc. and Mark Cox]
5349 *) Add a configuration entry for gcc on UnixWare.
5350 [Gary Benson <gbenson@redhat.com>]
5352 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5353 messages are stored in a single piece (fixed-length part and
5354 variable-length part combined) and fix various bugs found on the way.
5357 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5358 instead. BIO_gethostbyname() does not know what timeouts are
5359 appropriate, so entries would stay in cache even when they have
5361 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5363 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5364 faced with a pathologically small ClientHello fragment that does
5365 not contain client_version: Instead of aborting with an error,
5366 simply choose the highest available protocol version (i.e.,
5367 TLS 1.0 unless it is disabled). In practice, ClientHello
5368 messages are never sent like this, but this change gives us
5369 strictly correct behaviour at least for TLS.
5372 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5373 never resets s->method to s->ctx->method when called from within
5374 one of the SSL handshake functions.
5375 [Bodo Moeller; problem pointed out by Niko Baric]
5377 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5378 (sent using the client's version number) if client_version is
5379 smaller than the protocol version in use. Also change
5380 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5381 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5382 the client will at least see that alert.
5385 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5389 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5390 client receives HelloRequest while in a handshake.
5391 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5393 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5394 should end in 'break', not 'goto end' which circuments various
5395 cleanups done in state SSL_ST_OK. But session related stuff
5396 must be disabled for SSL_ST_OK in the case that we just sent a
5399 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5400 before just sending a HelloRequest.
5401 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5403 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5404 reveal whether illegal block cipher padding was found or a MAC
5405 verification error occured. (Neither SSLerr() codes nor alerts
5406 are directly visible to potential attackers, but the information
5407 may leak via logfiles.)
5409 Similar changes are not required for the SSL 2.0 implementation
5410 because the number of padding bytes is sent in clear for SSL 2.0,
5411 and the extra bytes are just ignored. However ssl/s2_pkt.c
5412 failed to verify that the purported number of padding bytes is in
5416 *) Add OpenUNIX-8 support including shared libraries
5417 (Boyd Lynn Gerber <gerberb@zenez.com>).
5420 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5421 'wristwatch attack' using huge encoding parameters (cf.
5422 James H. Manger's CRYPTO 2001 paper). Note that the
5423 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5424 encoding parameters and hence was not vulnerable.
5427 *) BN_sqr() bug fix.
5428 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5430 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5431 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5432 followed by modular reduction.
5433 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5435 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5436 equivalent based on BN_pseudo_rand() instead of BN_rand().
5439 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5440 This function was broken, as the check for a new client hello message
5441 to handle SGC did not allow these large messages.
5442 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5445 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5448 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5449 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5452 *) Rework the configuration and shared library support for Tru64 Unix.
5453 The configuration part makes use of modern compiler features and
5454 still retains old compiler behavior for those that run older versions
5455 of the OS. The shared library support part includes a variant that
5456 uses the RPATH feature, and is available through the special
5457 configuration target "alpha-cc-rpath", which will never be selected
5459 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5461 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5462 with the same message size as in ssl3_get_certificate_request().
5463 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5464 messages might inadvertently be reject as too long.
5465 [Petr Lampa <lampa@fee.vutbr.cz>]
5467 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5470 *) Modified SSL library such that the verify_callback that has been set
5471 specificly for an SSL object with SSL_set_verify() is actually being
5472 used. Before the change, a verify_callback set with this function was
5473 ignored and the verify_callback() set in the SSL_CTX at the time of
5474 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5475 to allow the necessary settings.
5478 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5479 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5480 done automatically (in contradiction to the requirements of the C
5481 standard). This made problems when used from OpenSSH.
5484 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5485 dh->length and always used
5487 BN_rand_range(priv_key, dh->p).
5489 BN_rand_range() is not necessary for Diffie-Hellman, and this
5490 specific range makes Diffie-Hellman unnecessarily inefficient if
5491 dh->length (recommended exponent length) is much smaller than the
5492 length of dh->p. We could use BN_rand_range() if the order of
5493 the subgroup was stored in the DH structure, but we only have
5498 BN_rand(priv_key, l, ...)
5500 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5506 RSA_eay_public_encrypt
5507 RSA_eay_private_decrypt
5508 RSA_eay_private_encrypt (signing)
5509 RSA_eay_public_decrypt (signature verification)
5511 (default implementations for RSA_public_encrypt,
5512 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5513 always reject numbers >= n.
5516 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5517 to synchronize access to 'locking_thread'. This is necessary on
5518 systems where access to 'locking_thread' (an 'unsigned long'
5519 variable) is not atomic.
5522 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5523 *before* setting the 'crypto_lock_rand' flag. The previous code had
5524 a race condition if 0 is a valid thread ID.
5525 [Travis Vitek <vitek@roguewave.com>]
5527 *) Add support for shared libraries under Irix.
5528 [Albert Chin-A-Young <china@thewrittenword.com>]
5530 *) Add configuration option to build on Linux on both big-endian and
5532 [Ralf Baechle <ralf@uni-koblenz.de>]
5534 *) Add the possibility to create shared libraries on HP-UX.
5537 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5539 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5540 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5541 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5542 PRNG state recovery was possible based on the output of
5543 one PRNG request appropriately sized to gain knowledge on
5544 'md' followed by enough consecutive 1-byte PRNG requests
5545 to traverse all of 'state'.
5547 1. When updating 'md_local' (the current thread's copy of 'md')
5548 during PRNG output generation, hash all of the previous
5549 'md_local' value, not just the half used for PRNG output.
5551 2. Make the number of bytes from 'state' included into the hash
5552 independent from the number of PRNG bytes requested.
5554 The first measure alone would be sufficient to avoid
5555 Markku-Juhani's attack. (Actually it had never occurred
5556 to me that the half of 'md_local' used for chaining was the
5557 half from which PRNG output bytes were taken -- I had always
5558 assumed that the secret half would be used.) The second
5559 measure makes sure that additional data from 'state' is never
5560 mixed into 'md_local' in small portions; this heuristically
5561 further strengthens the PRNG.
5564 *) Fix crypto/bn/asm/mips3.s.
5567 *) When only the key is given to "enc", the IV is undefined. Print out
5568 an error message in this case.
5571 *) Handle special case when X509_NAME is empty in X509 printing routines.
5574 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5575 positive and less than q.
5578 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5579 used: it isn't thread safe and the add_lock_callback should handle
5581 [Paul Rose <Paul.Rose@bridge.com>]
5583 *) Verify that incoming data obeys the block size in
5584 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5588 [Ulf Möller, Bodo Möller]
5590 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5591 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5592 when fixing the server behaviour for backwards-compatible 'client
5593 hello' messages. (Note that the attack is impractical against
5594 SSL 3.0 and TLS 1.0 anyway because length and version checking
5595 means that the probability of guessing a valid ciphertext is
5596 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5599 Before 0.9.5, the countermeasure (hide the error by generating a
5600 random 'decryption result') did not work properly because
5601 ERR_clear_error() was missing, meaning that SSL_get_error() would
5602 detect the supposedly ignored error.
5604 Both problems are now fixed.
5607 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5608 (previously it was 1024).
5611 *) Fix for compatibility mode trust settings: ignore trust settings
5612 unless some valid trust or reject settings are present.
5615 *) Fix for blowfish EVP: its a variable length cipher.
5618 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5619 parameters in DSA public key structures and return an error in the
5620 DSA routines if parameters are absent.
5623 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5624 in the current directory if neither $RANDFILE nor $HOME was set.
5625 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5626 caused some confusion to Windows users who haven't defined $HOME.
5627 Thus RAND_file_name() is changed again: e_os.h can define a
5628 DEFAULT_HOME, which will be used if $HOME is not set.
5629 For Windows, we use "C:"; on other platforms, we still require
5630 environment variables.
5632 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5633 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5634 having multiple threads call RAND_poll() concurrently.
5637 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5638 combination of a flag and a thread ID variable.
5639 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5640 flag), *other* threads can enter ssleay_add_bytes without obeying
5641 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5642 that they do not hold after the first thread unsets add_do_not_lock).
5645 *) Change bctest again: '-x' expressions are not available in all
5649 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5651 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5652 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5654 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5655 the default extension for executables, if any. Also, make the perl
5656 scripts that use symlink() to test if it really exists and use "cp"
5657 if it doesn't. All this made OpenSSL compilable and installable in
5661 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5662 If SEQUENCE is length is indefinite just set c->slen to the total
5663 amount of data available.
5664 [Steve Henson, reported by shige@FreeBSD.org]
5665 [This change does not apply to 0.9.7.]
5667 *) Change bctest to avoid here-documents inside command substitution
5668 (workaround for FreeBSD /bin/sh bug).
5669 For compatibility with Ultrix, avoid shell functions (introduced
5670 in the bctest version that searches along $PATH).
5673 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5674 with des_encrypt() defined on some operating systems, like Solaris
5678 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5679 On the Importance of Eliminating Errors in Cryptographic
5680 Computations, J. Cryptology 14 (2001) 2, 101-119,
5681 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5684 *) MIPS assembler BIGNUM division bug fix.
5687 *) Disabled incorrect Alpha assembler code.
5690 *) Fix PKCS#7 decode routines so they correctly update the length
5691 after reading an EOC for the EXPLICIT tag.
5693 [This change does not apply to 0.9.7.]
5695 *) Fix bug in PKCS#12 key generation routines. This was triggered
5696 if a 3DES key was generated with a 0 initial byte. Include
5697 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5698 (but broken) behaviour.
5701 *) Enhance bctest to search for a working bc along $PATH and print
5703 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5705 *) Fix memory leaks in err.c: free err_data string if necessary;
5706 don't write to the wrong index in ERR_set_error_data.
5709 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5713 *) Replace rdtsc with _emit statements for VC++ version 5.
5714 [Jeremy Cooper <jeremy@baymoo.org>]
5716 *) Make it possible to reuse SSLv2 sessions.
5719 *) In copy_email() check for >= 0 as a return value for
5720 X509_NAME_get_index_by_NID() since 0 is a valid index.
5721 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5723 *) Avoid coredump with unsupported or invalid public keys by checking if
5724 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5725 PKCS7_verify() fails with non detached data.
5728 *) Don't use getenv in library functions when run as setuid/setgid.
5729 New function OPENSSL_issetugid().
5732 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5733 due to incorrect handling of multi-threading:
5735 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5737 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5739 3. Count how many times MemCheck_off() has been called so that
5740 nested use can be treated correctly. This also avoids
5741 inband-signalling in the previous code (which relied on the
5742 assumption that thread ID 0 is impossible).
5745 *) Add "-rand" option also to s_client and s_server.
5748 *) Fix CPU detection on Irix 6.x.
5749 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5750 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5752 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5755 [This change does not apply to 0.9.7.]
5757 *) Use the cached encoding of an X509_NAME structure rather than
5758 copying it. This is apparently the reason for the libsafe "errors"
5759 but the code is actually correct.
5762 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5763 Bleichenbacher's DSA attack.
5764 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5765 to be set and top=0 forces the highest bit to be set; top=-1 is new
5766 and leaves the highest bit random.
5767 [Ulf Moeller, Bodo Moeller]
5769 *) In the NCONF_...-based implementations for CONF_... queries
5770 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5771 a temporary CONF structure with the data component set to NULL
5772 (which gives segmentation faults in lh_retrieve).
5773 Instead, use NULL for the CONF pointer in CONF_get_string and
5774 CONF_get_number (which may use environment variables) and directly
5775 return NULL from CONF_get_section.
5778 *) Fix potential buffer overrun for EBCDIC.
5781 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5782 keyUsage if basicConstraints absent for a CA.
5785 *) Make SMIME_write_PKCS7() write mail header values with a format that
5786 is more generally accepted (no spaces before the semicolon), since
5787 some programs can't parse those values properly otherwise. Also make
5788 sure BIO's that break lines after each write do not create invalid
5792 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5793 macros previously used would not encode an empty SEQUENCE OF
5794 and break the signature.
5796 [This change does not apply to 0.9.7.]
5798 *) Zero the premaster secret after deriving the master secret in
5802 *) Add some EVP_add_digest_alias registrations (as found in
5803 OpenSSL_add_all_digests()) to SSL_library_init()
5804 aka OpenSSL_add_ssl_algorithms(). This provides improved
5805 compatibility with peers using X.509 certificates
5806 with unconventional AlgorithmIdentifier OIDs.
5809 *) Fix for Irix with NO_ASM.
5810 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5812 *) ./config script fixes.
5813 [Ulf Moeller, Richard Levitte]
5815 *) Fix 'openssl passwd -1'.
5818 *) Change PKCS12_key_gen_asc() so it can cope with non null
5819 terminated strings whose length is passed in the passlen
5820 parameter, for example from PEM callbacks. This was done
5821 by adding an extra length parameter to asc2uni().
5822 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5824 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5825 call failed, free the DSA structure.
5828 *) Fix to uni2asc() to cope with zero length Unicode strings.
5829 These are present in some PKCS#12 files.
5832 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5833 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5834 when writing a 32767 byte record.
5835 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5837 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5838 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5840 (RSA objects have a reference count access to which is protected
5841 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5842 so they are meant to be shared between threads.)
5843 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5844 "Reddie, Steven" <Steven.Reddie@ca.com>]
5846 *) Fix a deadlock in CRYPTO_mem_leaks().
5849 *) Use better test patterns in bntest.
5852 *) rand_win.c fix for Borland C.
5855 *) BN_rshift bugfix for n == 0.
5858 *) Add a 'bctest' script that checks for some known 'bc' bugs
5859 so that 'make test' does not abort just because 'bc' is broken.
5862 *) Store verify_result within SSL_SESSION also for client side to
5863 avoid potential security hole. (Re-used sessions on the client side
5864 always resulted in verify_result==X509_V_OK, not using the original
5865 result of the server certificate verification.)
5868 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5869 SSL3_RT_APPLICATION_DATA, return 0.
5870 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5874 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5875 releases, have been re-implemented by renaming the previous
5876 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5877 and ssl3_read_internal, respectively, and adding 'peek' parameters
5878 to them. The new ssl[23]_{read,peek} functions are calls to
5879 ssl[23]_read_internal with the 'peek' flag set appropriately.
5880 A 'peek' parameter has also been added to ssl3_read_bytes, which
5881 does the actual work for ssl3_read_internal.
5884 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5885 the method-specific "init()" handler. Also clean up ex_data after
5886 calling the method-specific "finish()" handler. Previously, this was
5887 happening the other way round.
5890 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5891 The previous value, 12, was not always sufficient for BN_mod_exp().
5894 *) Make sure that shared libraries get the internal name engine with
5895 the full version number and not just 0. This should mark the
5896 shared libraries as not backward compatible. Of course, this should
5897 be changed again when we can guarantee backward binary compatibility.
5900 *) Fix typo in get_cert_by_subject() in by_dir.c
5901 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5903 *) Rework the system to generate shared libraries:
5905 - Make note of the expected extension for the shared libraries and
5906 if there is a need for symbolic links from for example libcrypto.so.0
5907 to libcrypto.so.0.9.7. There is extended info in Configure for
5910 - Make as few rebuilds of the shared libraries as possible.
5912 - Still avoid linking the OpenSSL programs with the shared libraries.
5914 - When installing, install the shared libraries separately from the
5918 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5920 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5921 and not in SSL_clear because the latter is also used by the
5922 accept/connect functions; previously, the settings made by
5923 SSL_set_read_ahead would be lost during the handshake.
5924 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5926 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5927 Previously, it would create entries for disableed algorithms no
5931 *) Added several new manual pages for SSL_* function.
5934 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5936 *) In ssl23_get_client_hello, generate an error message when faced
5937 with an initial SSL 3.0/TLS record that is too small to contain the
5938 first two bytes of the ClientHello message, i.e. client_version.
5939 (Note that this is a pathologic case that probably has never happened
5940 in real life.) The previous approach was to use the version number
5941 from the record header as a substitute; but our protocol choice
5942 should not depend on that one because it is not authenticated
5943 by the Finished messages.
5946 *) More robust randomness gathering functions for Windows.
5947 [Jeffrey Altman <jaltman@columbia.edu>]
5949 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5950 not set then we don't setup the error code for issuer check errors
5951 to avoid possibly overwriting other errors which the callback does
5952 handle. If an application does set the flag then we assume it knows
5953 what it is doing and can handle the new informational codes
5957 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5958 a general "ANY" type, as such it should be able to decode anything
5959 including tagged types. However it didn't check the class so it would
5960 wrongly interpret tagged types in the same way as their universal
5961 counterpart and unknown types were just rejected. Changed so that the
5962 tagged and unknown types are handled in the same way as a SEQUENCE:
5963 that is the encoding is stored intact. There is also a new type
5964 "V_ASN1_OTHER" which is used when the class is not universal, in this
5965 case we have no idea what the actual type is so we just lump them all
5969 *) On VMS, stdout may very well lead to a file that is written to
5970 in a record-oriented fashion. That means that every write() will
5971 write a separate record, which will be read separately by the
5972 programs trying to read from it. This can be very confusing.
5974 The solution is to put a BIO filter in the way that will buffer
5975 text until a linefeed is reached, and then write everything a
5976 line at a time, so every record written will be an actual line,
5977 not chunks of lines and not (usually doesn't happen, but I've
5978 seen it once) several lines in one record. BIO_f_linebuffer() is
5981 Currently, it's a VMS-only method, because that's where it has
5982 been tested well enough.
5985 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5986 it can return incorrect results.
5987 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5988 but it was in 0.9.6-beta[12].)
5991 *) Disable the check for content being present when verifying detached
5992 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5993 include zero length content when signing messages.
5996 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5997 BIO_ctrl (for BIO pairs).
6000 *) Add DSO method for VMS.
6003 *) Bug fix: Montgomery multiplication could produce results with the
6007 *) Add RPM specification openssl.spec and modify it to build three
6008 packages. The default package contains applications, application
6009 documentation and run-time libraries. The devel package contains
6010 include files, static libraries and function documentation. The
6011 doc package contains the contents of the doc directory. The original
6012 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6015 *) Add a large number of documentation files for many SSL routines.
6016 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6018 *) Add a configuration entry for Sony News 4.
6019 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6021 *) Don't set the two most significant bits to one when generating a
6022 random number < q in the DSA library.
6025 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6026 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6027 the underlying transport is blocking) if a handshake took place.
6028 (The default behaviour is needed by applications such as s_client
6029 and s_server that use select() to determine when to use SSL_read;
6030 but for applications that know in advance when to expect data, it
6031 just makes things more complicated.)
6034 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6038 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6039 work better on such systems.
6040 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6042 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6043 Update PKCS12_parse() so it copies the friendlyName and the
6044 keyid to the certificates aux info.
6047 *) Fix bug in PKCS7_verify() which caused an infinite loop
6048 if there was more than one signature.
6049 [Sven Uszpelkat <su@celocom.de>]
6051 *) Major change in util/mkdef.pl to include extra information
6052 about each symbol, as well as presentig variables as well
6053 as functions. This change means that there's n more need
6054 to rebuild the .num files when some algorithms are excluded.
6057 *) Allow the verify time to be set by an application,
6058 rather than always using the current time.
6061 *) Phase 2 verify code reorganisation. The certificate
6062 verify code now looks up an issuer certificate by a
6063 number of criteria: subject name, authority key id
6064 and key usage. It also verifies self signed certificates
6065 by the same criteria. The main comparison function is
6066 X509_check_issued() which performs these checks.
6068 Lot of changes were necessary in order to support this
6069 without completely rewriting the lookup code.
6071 Authority and subject key identifier are now cached.
6073 The LHASH 'certs' is X509_STORE has now been replaced
6074 by a STACK_OF(X509_OBJECT). This is mainly because an
6075 LHASH can't store or retrieve multiple objects with
6076 the same hash value.
6078 As a result various functions (which were all internal
6079 use only) have changed to handle the new X509_STORE
6080 structure. This will break anything that messed round
6081 with X509_STORE internally.
6083 The functions X509_STORE_add_cert() now checks for an
6084 exact match, rather than just subject name.
6086 The X509_STORE API doesn't directly support the retrieval
6087 of multiple certificates matching a given criteria, however
6088 this can be worked round by performing a lookup first
6089 (which will fill the cache with candidate certificates)
6090 and then examining the cache for matches. This is probably
6091 the best we can do without throwing out X509_LOOKUP
6092 entirely (maybe later...).
6094 The X509_VERIFY_CTX structure has been enhanced considerably.
6096 All certificate lookup operations now go via a get_issuer()
6097 callback. Although this currently uses an X509_STORE it
6098 can be replaced by custom lookups. This is a simple way
6099 to bypass the X509_STORE hackery necessary to make this
6100 work and makes it possible to use more efficient techniques
6101 in future. A very simple version which uses a simple
6102 STACK for its trusted certificate store is also provided
6103 using X509_STORE_CTX_trusted_stack().
6105 The verify_cb() and verify() callbacks now have equivalents
6106 in the X509_STORE_CTX structure.
6108 X509_STORE_CTX also has a 'flags' field which can be used
6109 to customise the verify behaviour.
6112 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6113 excludes S/MIME capabilities.
6116 *) When a certificate request is read in keep a copy of the
6117 original encoding of the signed data and use it when outputing
6118 again. Signatures then use the original encoding rather than
6119 a decoded, encoded version which may cause problems if the
6120 request is improperly encoded.
6123 *) For consistency with other BIO_puts implementations, call
6124 buffer_write(b, ...) directly in buffer_puts instead of calling
6127 In BIO_puts, increment b->num_write as in BIO_write.
6128 [Peter.Sylvester@EdelWeb.fr]
6130 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6131 BN_zero, we may not return a BIGNUM with an array consisting of
6135 *) Avoid calling abort() from within the library when problems are
6136 detected, except if preprocessor symbols have been defined
6137 (such as REF_CHECK, BN_DEBUG etc.).
6140 *) New openssl application 'rsautl'. This utility can be
6141 used for low level RSA operations. DER public key
6142 BIO/fp routines also added.
6145 *) New Configure entry and patches for compiling on QNX 4.
6146 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6148 *) A demo state-machine implementation was sponsored by
6149 Nuron (http://www.nuron.com/) and is now available in
6150 demos/state_machine.
6153 *) New options added to the 'dgst' utility for signature
6154 generation and verification.
6157 *) Unrecognized PKCS#7 content types are now handled via a
6158 catch all ASN1_TYPE structure. This allows unsupported
6159 types to be stored as a "blob" and an application can
6160 encode and decode it manually.
6163 *) Fix various signed/unsigned issues to make a_strex.c
6165 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6167 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6168 length if passed a buffer. ASN1_INTEGER_to_BN failed
6169 if passed a NULL BN and its argument was negative.
6170 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6172 *) Modification to PKCS#7 encoding routines to output definite
6173 length encoding. Since currently the whole structures are in
6174 memory there's not real point in using indefinite length
6175 constructed encoding. However if OpenSSL is compiled with
6176 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6179 *) Added BIO_vprintf() and BIO_vsnprintf().
6182 *) Added more prefixes to parse for in the the strings written
6183 through a logging bio, to cover all the levels that are available
6184 through syslog. The prefixes are now:
6186 PANIC, EMERG, EMR => LOG_EMERG
6187 ALERT, ALR => LOG_ALERT
6188 CRIT, CRI => LOG_CRIT
6189 ERROR, ERR => LOG_ERR
6190 WARNING, WARN, WAR => LOG_WARNING
6191 NOTICE, NOTE, NOT => LOG_NOTICE
6192 INFO, INF => LOG_INFO
6193 DEBUG, DBG => LOG_DEBUG
6195 and as before, if none of those prefixes are present at the
6196 beginning of the string, LOG_ERR is chosen.
6198 On Win32, the LOG_* levels are mapped according to this:
6200 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6201 LOG_WARNING => EVENTLOG_WARNING_TYPE
6202 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6206 *) Made it possible to reconfigure with just the configuration
6207 argument "reconf" or "reconfigure". The command line arguments
6208 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6209 and are retrieved from there when reconfiguring.
6213 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6215 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6218 *) The obj_dat.pl script was messing up the sorting of object
6219 names. The reason was that it compared the quoted version
6220 of strings as a result "OCSP" > "OCSP Signing" because
6221 " > SPACE. Changed script to store unquoted versions of
6222 names and add quotes on output. It was also omitting some
6223 names from the lookup table if they were given a default
6224 value (that is if SN is missing it is given the same
6225 value as LN and vice versa), these are now added on the
6226 grounds that if an object has a name we should be able to
6227 look it up. Finally added warning output when duplicate
6228 short or long names are found.
6231 *) Changes needed for Tandem NSK.
6232 [Scott Uroff <scott@xypro.com>]
6234 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6235 RSA_padding_check_SSLv23(), special padding was never detected
6236 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6237 version rollback attacks was not effective.
6239 In s23_clnt.c, don't use special rollback-attack detection padding
6240 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6241 client; similarly, in s23_srvr.c, don't do the rollback check if
6242 SSL 2.0 is the only protocol enabled in the server.
6245 *) Make it possible to get hexdumps of unprintable data with 'openssl
6246 asn1parse'. By implication, the functions ASN1_parse_dump() and
6247 BIO_dump_indent() are added.
6250 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6251 these print out strings and name structures based on various
6252 flags including RFC2253 support and proper handling of
6253 multibyte characters. Added options to the 'x509' utility
6254 to allow the various flags to be set.
6257 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6258 Also change the functions X509_cmp_current_time() and
6259 X509_gmtime_adj() work with an ASN1_TIME structure,
6260 this will enable certificates using GeneralizedTime in validity
6261 dates to be checked.
6264 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6265 negative public key encodings) on by default,
6266 NO_NEG_PUBKEY_BUG can be set to disable it.
6269 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6270 content octets. An i2c_ASN1_OBJECT is unnecessary because
6271 the encoding can be trivially obtained from the structure.
6274 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6275 not read locks (CRYPTO_r_[un]lock).
6278 *) A first attempt at creating official support for shared
6279 libraries through configuration. I've kept it so the
6280 default is static libraries only, and the OpenSSL programs
6281 are always statically linked for now, but there are
6282 preparations for dynamic linking in place.
6283 This has been tested on Linux and Tru64.
6286 *) Randomness polling function for Win9x, as described in:
6287 Peter Gutmann, Software Generation of Practically Strong
6291 *) Fix so PRNG is seeded in req if using an already existing
6295 *) New options to smime application. -inform and -outform
6296 allow alternative formats for the S/MIME message including
6297 PEM and DER. The -content option allows the content to be
6298 specified separately. This should allow things like Netscape
6299 form signing output easier to verify.
6302 *) Fix the ASN1 encoding of tags using the 'long form'.
6305 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6306 STRING types. These convert content octets to and from the
6307 underlying type. The actual tag and length octets are
6308 already assumed to have been read in and checked. These
6309 are needed because all other string types have virtually
6310 identical handling apart from the tag. By having versions
6311 of the ASN1 functions that just operate on content octets
6312 IMPLICIT tagging can be handled properly. It also allows
6313 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6314 and ASN1_INTEGER are identical apart from the tag.
6317 *) Change the handling of OID objects as follows:
6319 - New object identifiers are inserted in objects.txt, following
6320 the syntax given in objects.README.
6321 - objects.pl is used to process obj_mac.num and create a new
6323 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6326 This is currently kind of a hack, and the perl code in objects.pl
6327 isn't very elegant, but it works as I intended. The simplest way
6328 to check that it worked correctly is to look in obj_dat.h and
6329 check the array nid_objs and make sure the objects haven't moved
6330 around (this is important!). Additions are OK, as well as
6331 consistent name changes.
6334 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6337 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6338 The given file adds to whatever has already been seeded into the
6339 random pool through the RANDFILE configuration file option or
6340 environment variable, or the default random state file.
6343 *) mkstack.pl now sorts each macro group into lexical order.
6344 Previously the output order depended on the order the files
6345 appeared in the directory, resulting in needless rewriting
6349 *) Patches to make OpenSSL compile under Win32 again. Mostly
6350 work arounds for the VC++ problem that it treats func() as
6351 func(void). Also stripped out the parts of mkdef.pl that
6352 added extra typesafe functions: these no longer exist.
6355 *) Reorganisation of the stack code. The macros are now all
6356 collected in safestack.h . Each macro is defined in terms of
6357 a "stack macro" of the form SKM_<name>(type, a, b). The
6358 DEBUG_SAFESTACK is now handled in terms of function casts,
6359 this has the advantage of retaining type safety without the
6360 use of additional functions. If DEBUG_SAFESTACK is not defined
6361 then the non typesafe macros are used instead. Also modified the
6362 mkstack.pl script to handle the new form. Needs testing to see
6363 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6364 the default if no major problems. Similar behaviour for ASN1_SET_OF
6365 and PKCS12_STACK_OF.
6368 *) When some versions of IIS use the 'NET' form of private key the
6369 key derivation algorithm is different. Normally MD5(password) is
6370 used as a 128 bit RC4 key. In the modified case
6371 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6372 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6373 as the old Netscape_RSA functions except they have an additional
6374 'sgckey' parameter which uses the modified algorithm. Also added
6375 an -sgckey command line option to the rsa utility. Thanks to
6376 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6377 algorithm to openssl-dev.
6380 *) The evp_local.h macros were using 'c.##kname' which resulted in
6381 invalid expansion on some systems (SCO 5.0.5 for example).
6382 Corrected to 'c.kname'.
6383 [Phillip Porch <root@theporch.com>]
6385 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6386 a STACK of email addresses from a certificate or request, these look
6387 in the subject name and the subject alternative name extensions and
6388 omit any duplicate addresses.
6391 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6392 This makes DSA verification about 2 % faster.
6395 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6396 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6397 plus overhead for 1024 bit moduli).
6398 This makes exponentiations about 0.5 % faster for 1024 bit
6399 exponents (as measured by "openssl speed rsa2048").
6402 *) Rename memory handling macros to avoid conflicts with other
6404 Malloc => OPENSSL_malloc
6405 Malloc_locked => OPENSSL_malloc_locked
6406 Realloc => OPENSSL_realloc
6407 Free => OPENSSL_free
6410 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6411 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6414 *) CygWin32 support.
6415 [John Jarvie <jjarvie@newsguy.com>]
6417 *) The type-safe stack code has been rejigged. It is now only compiled
6418 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6419 by default all type-specific stack functions are "#define"d back to
6420 standard stack functions. This results in more streamlined output
6421 but retains the type-safety checking possibilities of the original
6425 *) The STACK code has been cleaned up, and certain type declarations
6426 that didn't make a lot of sense have been brought in line. This has
6427 also involved a cleanup of sorts in safestack.h to more correctly
6428 map type-safe stack functions onto their plain stack counterparts.
6429 This work has also resulted in a variety of "const"ifications of
6430 lots of the code, especially "_cmp" operations which should normally
6431 be prototyped with "const" parameters anyway.
6434 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6435 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6436 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6437 where all of 'md' is used each time the PRNG is used, but 'state'
6438 is used only indexed by a cyclic counter. As entropy may not be
6439 well distributed from the beginning, 'md' is important as a
6440 chaining variable. However, the output function chains only half
6441 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6442 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6443 in all of 'state' being rewritten, with the new values depending
6444 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6447 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6448 the handshake is continued after ssl_verify_cert_chain();
6449 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6450 can lead to 'unexplainable' connection aborts later.
6451 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6453 *) Major EVP API cipher revision.
6454 Add hooks for extra EVP features. This allows various cipher
6455 parameters to be set in the EVP interface. Support added for variable
6456 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6457 setting of RC2 and RC5 parameters.
6459 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6462 Remove lots of duplicated code from the EVP library. For example *every*
6463 cipher init() function handles the 'iv' in the same way according to the
6464 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6465 for CFB and OFB modes they zero ctx->num.
6467 New functionality allows removal of S/MIME code RC2 hack.
6469 Most of the routines have the same form and so can be declared in terms
6472 By shifting this to the top level EVP_CipherInit() it can be removed from
6473 all individual ciphers. If the cipher wants to handle IVs or keys
6474 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6477 Change lots of functions like EVP_EncryptUpdate() to now return a
6478 value: although software versions of the algorithms cannot fail
6479 any installed hardware versions can.
6482 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6483 this option is set, tolerate broken clients that send the negotiated
6484 protocol version number instead of the requested protocol version
6488 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6489 i.e. non-zero for export ciphersuites, zero otherwise.
6490 Previous versions had this flag inverted, inconsistent with
6491 rsa_tmp_cb (..._TMP_RSA_CB).
6492 [Bodo Moeller; problem reported by Amit Chopra]
6494 *) Add missing DSA library text string. Work around for some IIS
6495 key files with invalid SEQUENCE encoding.
6498 *) Add a document (doc/standards.txt) that list all kinds of standards
6499 and so on that are implemented in OpenSSL.
6502 *) Enhance c_rehash script. Old version would mishandle certificates
6503 with the same subject name hash and wouldn't handle CRLs at all.
6504 Added -fingerprint option to crl utility, to support new c_rehash
6508 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6511 *) Fix for SSL server purpose checking. Server checking was
6512 rejecting certificates which had extended key usage present
6513 but no ssl client purpose.
6514 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6516 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6517 is a little unclear about how a blank password is handled.
6518 Since the password in encoded as a BMPString with terminating
6519 double NULL a zero length password would end up as just the
6520 double NULL. However no password at all is different and is
6521 handled differently in the PKCS#12 key generation code. NS
6522 treats a blank password as zero length. MSIE treats it as no
6523 password on export: but it will try both on import. We now do
6524 the same: PKCS12_parse() tries zero length and no password if
6525 the password is set to "" or NULL (NULL is now a valid password:
6526 it wasn't before) as does the pkcs12 application.
6529 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6530 perror when PEM_read_bio_X509_REQ fails, the error message must
6531 be obtained from the error queue.
6534 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6535 it in ERR_remove_state if appropriate, and change ERR_get_state
6536 accordingly to avoid race conditions (this is necessary because
6537 thread_hash is no longer constant once set).
6540 *) Bugfix for linux-elf makefile.one.
6543 *) RSA_get_default_method() will now cause a default
6544 RSA_METHOD to be chosen if one doesn't exist already.
6545 Previously this was only set during a call to RSA_new()
6546 or RSA_new_method(NULL) meaning it was possible for
6547 RSA_get_default_method() to return NULL.
6550 *) Added native name translation to the existing DSO code
6551 that will convert (if the flag to do so is set) filenames
6552 that are sufficiently small and have no path information
6553 into a canonical native form. Eg. "blah" converted to
6554 "libblah.so" or "blah.dll" etc.
6557 *) New function ERR_error_string_n(e, buf, len) which is like
6558 ERR_error_string(e, buf), but writes at most 'len' bytes
6559 including the 0 terminator. For ERR_error_string_n, 'buf'
6561 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6563 *) CONF library reworked to become more general. A new CONF
6564 configuration file reader "class" is implemented as well as a
6565 new functions (NCONF_*, for "New CONF") to handle it. The now
6566 old CONF_* functions are still there, but are reimplemented to
6567 work in terms of the new functions. Also, a set of functions
6568 to handle the internal storage of the configuration data is
6569 provided to make it easier to write new configuration file
6570 reader "classes" (I can definitely see something reading a
6571 configuration file in XML format, for example), called _CONF_*,
6572 or "the configuration storage API"...
6574 The new configuration file reading functions are:
6576 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6577 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6579 NCONF_default, NCONF_WIN32
6581 NCONF_dump_fp, NCONF_dump_bio
6583 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6584 NCONF_new creates a new CONF object. This works in the same way
6585 as other interfaces in OpenSSL, like the BIO interface.
6586 NCONF_dump_* dump the internal storage of the configuration file,
6587 which is useful for debugging. All other functions take the same
6588 arguments as the old CONF_* functions wth the exception of the
6589 first that must be a `CONF *' instead of a `LHASH *'.
6591 To make it easer to use the new classes with the old CONF_* functions,
6592 the function CONF_set_default_method is provided.
6595 *) Add '-tls1' option to 'openssl ciphers', which was already
6596 mentioned in the documentation but had not been implemented.
6597 (This option is not yet really useful because even the additional
6598 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6601 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6602 OpenSSL-based applications) load shared libraries and bind to
6603 them in a portable way.
6604 [Geoff Thorpe, with contributions from Richard Levitte]
6606 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6608 *) Make sure _lrotl and _lrotr are only used with MSVC.
6610 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6611 (the default implementation of RAND_status).
6613 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6614 to '-clrext' (= clear extensions), as intended and documented.
6615 [Bodo Moeller; inconsistency pointed out by Michael Attili
6618 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6619 was larger than the MD block size.
6620 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6622 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6623 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6624 using the passed key: if the passed key was a private key the result
6625 of X509_print(), for example, would be to print out all the private key
6629 *) des_quad_cksum() byte order bug fix.
6630 [Ulf Möller, using the problem description in krb4-0.9.7, where
6631 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6633 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6635 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6637 *) For easily testing in shell scripts whether some command
6638 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6639 returns with exit code 0 iff no command of the given name is available.
6640 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6641 the output goes to stdout and nothing is printed to stderr.
6642 Additional arguments are always ignored.
6644 Since for each cipher there is a command of the same name,
6645 the 'no-cipher' compilation switches can be tested this way.
6647 ('openssl no-XXX' is not able to detect pseudo-commands such
6648 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6651 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6654 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6655 is set; it will be thrown away anyway because each handshake creates
6657 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6658 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6659 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6660 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6663 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6664 'Q' and 'R' lose their special meanings (quit/renegotiate).
6665 This is part of what -quiet does; unlike -quiet, -ign_eof
6666 does not suppress any output.
6669 *) Add compatibility options to the purpose and trust code. The
6670 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6671 accepts a certificate or CA, this was the previous behaviour,
6672 with all the associated security issues.
6674 X509_TRUST_COMPAT is the old trust behaviour: only and
6675 automatically trust self signed roots in certificate store. A
6676 new trust setting X509_TRUST_DEFAULT is used to specify that
6677 a purpose has no associated trust setting and it should instead
6678 use the value in the default purpose.
6681 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6682 and fix a memory leak.
6685 *) In util/mkerr.pl (which implements 'make errors'), preserve
6686 reason strings from the previous version of the .c file, as
6687 the default to have only downcase letters (and digits) in
6688 automatically generated reasons codes is not always appropriate.
6691 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6692 using strerror. Previously, ERR_reason_error_string() returned
6693 library names as reason strings for SYSerr; but SYSerr is a special
6694 case where small numbers are errno values, not library numbers.
6697 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6698 converts DSA parameters into DH parameters. (When creating parameters,
6699 DSA_generate_parameters is used.)
6702 *) Include 'length' (recommended exponent length) in C code generated
6703 by 'openssl dhparam -C'.
6706 *) The second argument to set_label in perlasm was already being used
6707 so couldn't be used as a "file scope" flag. Moved to third argument
6711 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6712 instead of RAND_bytes for encryption IVs and salts.
6715 *) Include RAND_status() into RAND_METHOD instead of implementing
6716 it only for md_rand.c Otherwise replacing the PRNG by calling
6717 RAND_set_rand_method would be impossible.
6720 *) Don't let DSA_generate_key() enter an infinite loop if the random
6721 number generation fails.
6724 *) New 'rand' application for creating pseudo-random output.
6727 *) Added configuration support for Linux/IA64
6728 [Rolf Haberrecker <rolf@suse.de>]
6730 *) Assembler module support for Mingw32.
6733 *) Shared library support for HPUX (in shlib/).
6734 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6736 *) Shared library support for Solaris gcc.
6737 [Lutz Behnke <behnke@trustcenter.de>]
6739 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6741 *) PKCS7_encrypt() was adding text MIME headers twice because they
6742 were added manually and by SMIME_crlf_copy().
6745 *) In bntest.c don't call BN_rand with zero bits argument.
6746 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6748 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6749 case was implemented. This caused BN_div_recp() to fail occasionally.
6752 *) Add an optional second argument to the set_label() in the perl
6753 assembly language builder. If this argument exists and is set
6754 to 1 it signals that the assembler should use a symbol whose
6755 scope is the entire file, not just the current function. This
6756 is needed with MASM which uses the format label:: for this scope.
6757 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6759 *) Change the ASN1 types so they are typedefs by default. Before
6760 almost all types were #define'd to ASN1_STRING which was causing
6761 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6765 *) Change names of new functions to the new get1/get0 naming
6766 convention: After 'get1', the caller owns a reference count
6767 and has to call ..._free; 'get0' returns a pointer to some
6768 data structure without incrementing reference counters.
6769 (Some of the existing 'get' functions increment a reference
6770 counter, some don't.)
6771 Similarly, 'set1' and 'add1' functions increase reference
6772 counters or duplicate objects.
6775 *) Allow for the possibility of temp RSA key generation failure:
6776 the code used to assume it always worked and crashed on failure.
6779 *) Fix potential buffer overrun problem in BIO_printf().
6780 [Ulf Möller, using public domain code by Patrick Powell; problem
6781 pointed out by David Sacerdote <das33@cornell.edu>]
6783 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6784 RAND_egd() and RAND_status(). In the command line application,
6785 the EGD socket can be specified like a seed file using RANDFILE
6789 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6790 Some CAs (e.g. Verisign) distribute certificates in this form.
6793 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6794 list to exclude them. This means that no special compilation option
6795 is needed to use anonymous DH: it just needs to be included in the
6799 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6800 EVP_MD_type. The old functionality is available in a new macro called
6801 EVP_MD_md(). Change code that uses it and update docs.
6804 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6805 where the 'void *' argument is replaced by a function pointer argument.
6806 Previously 'void *' was abused to point to functions, which works on
6807 many platforms, but is not correct. As these functions are usually
6808 called by macros defined in OpenSSL header files, most source code
6809 should work without changes.
6812 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6813 sections with information on -D... compiler switches used for
6814 compiling the library so that applications can see them. To enable
6815 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6816 must be defined. E.g.,
6817 #define OPENSSL_ALGORITHM_DEFINES
6818 #include <openssl/opensslconf.h>
6819 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6820 [Richard Levitte, Ulf and Bodo Möller]
6822 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6826 *) Change the 'other' type in certificate aux info to a STACK_OF
6827 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6828 the required ASN1 format: arbitrary types determined by an OID.
6831 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6832 argument to 'req'. This is not because the function is newer or
6833 better than others it just uses the work 'NEW' in the certificate
6834 request header lines. Some software needs this.
6837 *) Reorganise password command line arguments: now passwords can be
6838 obtained from various sources. Delete the PEM_cb function and make
6839 it the default behaviour: i.e. if the callback is NULL and the
6840 usrdata argument is not NULL interpret it as a null terminated pass
6841 phrase. If usrdata and the callback are NULL then the pass phrase
6842 is prompted for as usual.
6845 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6846 the support is automatically enabled. The resulting binaries will
6847 autodetect the card and use it if present.
6848 [Ben Laurie and Compaq Inc.]
6850 *) Work around for Netscape hang bug. This sends certificate request
6851 and server done in one record. Since this is perfectly legal in the
6852 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6853 the bugs/SSLv3 entry for more info.
6856 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6859 *) Add -rand argument to smime and pkcs12 applications and read/write
6863 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6866 *) Add command line password options to the remaining applications.
6869 *) Bug fix for BN_div_recp() for numerators with an even number of
6873 *) More tests in bntest.c, and changed test_bn output.
6876 *) ./config recognizes MacOS X now.
6879 *) Bug fix for BN_div() when the first words of num and divsor are
6880 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6883 *) Add support for various broken PKCS#8 formats, and command line
6884 options to produce them.
6887 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6888 get temporary BIGNUMs from a BN_CTX.
6891 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6895 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6896 include a #define from the old name to the new. The original intent
6897 was that statically linked binaries could for example just call
6898 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6899 link with digests. This never worked becayse SSLeay_add_all_digests()
6900 and SSLeay_add_all_ciphers() were in the same source file so calling
6901 one would link with the other. They are now in separate source files.
6904 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6907 *) Use a less unusual form of the Miller-Rabin primality test (it used
6908 a binary algorithm for exponentiation integrated into the Miller-Rabin
6909 loop, our standard modexp algorithms are faster).
6912 *) Support for the EBCDIC character set completed.
6913 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6915 *) Source code cleanups: use const where appropriate, eliminate casts,
6916 use void * instead of char * in lhash.
6919 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6920 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6921 this the server could overwrite ephemeral keys that the client
6925 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6926 using 50 iterations of the Rabin-Miller test.
6928 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6929 iterations of the Rabin-Miller test as required by the appendix
6930 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6931 As BN_is_prime_fasttest includes trial division, DSA parameter
6932 generation becomes much faster.
6934 This implies a change for the callback functions in DSA_is_prime
6935 and DSA_generate_parameters: The callback function is called once
6936 for each positive witness in the Rabin-Miller test, not just
6937 occasionally in the inner loop; and the parameters to the
6938 callback function now provide an iteration count for the outer
6939 loop rather than for the current invocation of the inner loop.
6940 DSA_generate_parameters additionally can call the callback
6941 function with an 'iteration count' of -1, meaning that a
6942 candidate has passed the trial division test (when q is generated
6943 from an application-provided seed, trial division is skipped).
6946 *) New function BN_is_prime_fasttest that optionally does trial
6947 division before starting the Rabin-Miller test and has
6948 an additional BN_CTX * argument (whereas BN_is_prime always
6949 has to allocate at least one BN_CTX).
6950 'callback(1, -1, cb_arg)' is called when a number has passed the
6951 trial division stage.
6954 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6958 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6961 *) New function BN_pseudo_rand().
6964 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6965 bignum version of BN_from_montgomery() with the working code from
6966 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6970 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6971 made it impossible to use the same SSL_SESSION data structure in
6972 SSL2 clients in multiple threads.
6975 *) The return value of RAND_load_file() no longer counts bytes obtained
6976 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6977 to seed the PRNG (previously an explicit byte count was required).
6978 [Ulf Möller, Bodo Möller]
6980 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6981 used (char *) instead of (void *) and had casts all over the place.
6984 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6987 *) Retain source code compatibility for BN_prime_checks macro:
6988 BN_is_prime(..., BN_prime_checks, ...) now uses
6989 BN_prime_checks_for_size to determine the appropriate number of
6990 Rabin-Miller iterations.
6993 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6994 DH_CHECK_P_NOT_SAFE_PRIME.
6995 (Check if this is true? OpenPGP calls them "strong".)
6998 *) Merge the functionality of "dh" and "gendh" programs into a new program
6999 "dhparam". The old programs are retained for now but will handle DH keys
7000 (instead of parameters) in future.
7003 *) Make the ciphers, s_server and s_client programs check the return values
7004 when a new cipher list is set.
7007 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7008 ciphers. Before when the 56bit ciphers were enabled the sorting was
7011 The syntax for the cipher sorting has been extended to support sorting by
7012 cipher-strength (using the strength_bits hard coded in the tables).
7013 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7015 Fix a bug in the cipher-command parser: when supplying a cipher command
7016 string with an "undefined" symbol (neither command nor alphanumeric
7017 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7018 an error is flagged.
7020 Due to the strength-sorting extension, the code of the
7021 ssl_create_cipher_list() function was completely rearranged. I hope that
7022 the readability was also increased :-)
7023 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7025 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7026 for the first serial number and places 2 in the serial number file. This
7027 avoids problems when the root CA is created with serial number zero and
7028 the first user certificate has the same issuer name and serial number
7032 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7033 the new code. Add documentation for this stuff.
7036 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7037 X509_*() to X509at_*() on the grounds that they don't handle X509
7038 structures and behave in an analagous way to the X509v3 functions:
7039 they shouldn't be called directly but wrapper functions should be used
7042 So we also now have some wrapper functions that call the X509at functions
7043 when passed certificate requests. (TO DO: similar things can be done with
7044 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7045 things. Some of these need some d2i or i2d and print functionality
7046 because they handle more complex structures.)
7049 *) Add missing #ifndefs that caused missing symbols when building libssl
7050 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7051 NO_RSA in ssl/s2*.c.
7052 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7054 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7055 has a return value which indicates the quality of the random data
7056 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7057 error queue. New function RAND_pseudo_bytes() generates output that is
7058 guaranteed to be unique but not unpredictable. RAND_add is like
7059 RAND_seed, but takes an extra argument for an entropy estimate
7060 (RAND_seed always assumes full entropy).
7063 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7064 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7065 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7066 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7067 false-positive rate of at most 2^-80 for random input.
7070 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7073 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7074 in the 0.9.5 release), this returns the chain
7075 from an X509_CTX structure with a dup of the stack and all
7076 the X509 reference counts upped: so the stack will exist
7077 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7080 Also make SSL_SESSION_print() print out the verify return
7084 *) Add manpage for the pkcs12 command. Also change the default
7085 behaviour so MAC iteration counts are used unless the new
7086 -nomaciter option is used. This improves file security and
7087 only older versions of MSIE (4.0 for example) need it.
7090 *) Honor the no-xxx Configure options when creating .DEF files.
7093 *) Add PKCS#10 attributes to field table: challengePassword,
7094 unstructuredName and unstructuredAddress. These are taken from
7095 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7096 international characters are used.
7098 More changes to X509_ATTRIBUTE code: allow the setting of types
7099 based on strings. Remove the 'loc' parameter when adding
7100 attributes because these will be a SET OF encoding which is sorted
7104 *) Initial changes to the 'req' utility to allow request generation
7105 automation. This will allow an application to just generate a template
7106 file containing all the field values and have req construct the
7109 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7110 used all over the place including certificate requests and PKCS#7
7111 structures. They are currently handled manually where necessary with
7112 some primitive wrappers for PKCS#7. The new functions behave in a
7113 manner analogous to the X509 extension functions: they allow
7114 attributes to be looked up by NID and added.
7116 Later something similar to the X509V3 code would be desirable to
7117 automatically handle the encoding, decoding and printing of the
7118 more complex types. The string types like challengePassword can
7119 be handled by the string table functions.
7121 Also modified the multi byte string table handling. Now there is
7122 a 'global mask' which masks out certain types. The table itself
7123 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7124 is useful when for example there is only one permissible type
7125 (as in countryName) and using the mask might result in no valid
7129 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7130 SSL_get_peer_finished to allow applications to obtain the latest
7131 Finished messages sent to the peer or expected from the peer,
7132 respectively. (SSL_get_peer_finished is usually the Finished message
7133 actually received from the peer, otherwise the protocol will be aborted.)
7135 As the Finished message are message digests of the complete handshake
7136 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7137 be used for external authentication procedures when the authentication
7138 provided by SSL/TLS is not desired or is not enough.
7141 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7142 the host supports BWX extension and if Compaq C is present on the
7143 $PATH. Just exploiting of the BWX extension results in 20-30%
7144 performance kick for some algorithms, e.g. DES and RC4 to mention
7145 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7149 *) Add support for MS "fast SGC". This is arguably a violation of the
7150 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7151 weak crypto and after checking the certificate is SGC a second one
7152 with strong crypto. MS SGC stops the first handshake after receiving
7153 the server certificate message and sends a second client hello. Since
7154 a server will typically do all the time consuming operations before
7155 expecting any further messages from the client (server key exchange
7156 is the most expensive) there is little difference between the two.
7158 To get OpenSSL to support MS SGC we have to permit a second client
7159 hello message after we have sent server done. In addition we have to
7160 reset the MAC if we do get this second client hello.
7163 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7164 if a DER encoded private key is RSA or DSA traditional format. Changed
7165 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7166 format DER encoded private key. Newer code should use PKCS#8 format which
7167 has the key type encoded in the ASN1 structure. Added DER private key
7168 support to pkcs8 application.
7171 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7172 ciphersuites has been selected (as required by the SSL 3/TLS 1
7173 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7174 is set, we interpret this as a request to violate the specification
7175 (the worst that can happen is a handshake failure, and 'correct'
7176 behaviour would result in a handshake failure anyway).
7179 *) In SSL_CTX_add_session, take into account that there might be multiple
7180 SSL_SESSION structures with the same session ID (e.g. when two threads
7181 concurrently obtain them from an external cache).
7182 The internal cache can handle only one SSL_SESSION with a given ID,
7183 so if there's a conflict, we now throw out the old one to achieve
7187 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7188 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7189 some routines that use cipher OIDs: some ciphers do not have OIDs
7190 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7194 *) Simplify the trust setting structure and code. Now we just have
7195 two sequences of OIDs for trusted and rejected settings. These will
7196 typically have values the same as the extended key usage extension
7197 and any application specific purposes.
7199 The trust checking code now has a default behaviour: it will just
7200 check for an object with the same NID as the passed id. Functions can
7201 be provided to override either the default behaviour or the behaviour
7202 for a given id. SSL client, server and email already have functions
7203 in place for compatibility: they check the NID and also return "trusted"
7204 if the certificate is self signed.
7207 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7208 traditional format into an EVP_PKEY structure.
7211 *) Add a password callback function PEM_cb() which either prompts for
7212 a password if usr_data is NULL or otherwise assumes it is a null
7213 terminated password. Allow passwords to be passed on command line
7214 environment or config files in a few more utilities.
7217 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7218 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7219 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7220 Update documentation.
7223 *) Support for ASN1 "NULL" type. This could be handled before by using
7224 ASN1_TYPE but there wasn't any function that would try to read a NULL
7225 and produce an error if it couldn't. For compatibility we also have
7226 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7227 don't allocate anything because they don't need to.
7230 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7232 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7234 *) Rebuild of the memory allocation routines used by OpenSSL code and
7235 possibly others as well. The purpose is to make an interface that
7236 provide hooks so anyone can build a separate set of allocation and
7237 deallocation routines to be used by OpenSSL, for example memory
7238 pool implementations, or something else, which was previously hard
7239 since Malloc(), Realloc() and Free() were defined as macros having
7240 the values malloc, realloc and free, respectively (except for Win32
7241 compilations). The same is provided for memory debugging code.
7242 OpenSSL already comes with functionality to find memory leaks, but
7243 this gives people a chance to debug other memory problems.
7245 With these changes, a new set of functions and macros have appeared:
7247 CRYPTO_set_mem_debug_functions() [F]
7248 CRYPTO_get_mem_debug_functions() [F]
7249 CRYPTO_dbg_set_options() [F]
7250 CRYPTO_dbg_get_options() [F]
7251 CRYPTO_malloc_debug_init() [M]
7253 The memory debug functions are NULL by default, unless the library
7254 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7255 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7256 gives the standard debugging functions that come with OpenSSL) or
7257 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7258 provided by the library user) must be used. When the standard
7259 debugging functions are used, CRYPTO_dbg_set_options can be used to
7260 request additional information:
7261 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7262 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7264 Also, things like CRYPTO_set_mem_functions will always give the
7265 expected result (the new set of functions is used for allocation
7266 and deallocation) at all times, regardless of platform and compiler
7269 To finish it up, some functions that were never use in any other
7270 way than through macros have a new API and new semantic:
7273 CRYPTO_dbg_realloc()
7276 All macros of value have retained their old syntax.
7277 [Richard Levitte and Bodo Moeller]
7279 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7280 ordering of SMIMECapabilities wasn't in "strength order" and there
7281 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7285 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7286 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7287 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7289 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7290 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7291 functionality to handle multipart/signed properly) and a utility
7292 called 'smime' to call all this stuff. This is based on code I
7293 originally wrote for Celo who have kindly allowed it to be
7294 included in OpenSSL.
7297 *) Add variants des_set_key_checked and des_set_key_unchecked of
7298 des_set_key (aka des_key_sched). Global variable des_check_key
7299 decides which of these is called by des_set_key; this way
7300 des_check_key behaves as it always did, but applications and
7301 the library itself, which was buggy for des_check_key == 1,
7302 have a cleaner way to pick the version they need.
7305 *) New function PKCS12_newpass() which changes the password of a
7309 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7310 dynamic mix. In both cases the ids can be used as an index into the
7311 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7312 functions so they accept a list of the field values and the
7313 application doesn't need to directly manipulate the X509_TRUST
7317 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7321 *) Modify the way the V3 extension code looks up extensions. This now
7322 works in a similar way to the object code: we have some "standard"
7323 extensions in a static table which is searched with OBJ_bsearch()
7324 and the application can add dynamic ones if needed. The file
7325 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7326 updated whenever a new extension is added to the core code and kept
7327 in ext_nid order. There is a simple program 'tabtest.c' which checks
7328 this. New extensions are not added too often so this file can readily
7329 be maintained manually.
7331 There are two big advantages in doing things this way. The extensions
7332 can be looked up immediately and no longer need to be "added" using
7333 X509V3_add_standard_extensions(): this function now does nothing.
7334 [Side note: I get *lots* of email saying the extension code doesn't
7335 work because people forget to call this function]
7336 Also no dynamic allocation is done unless new extensions are added:
7337 so if we don't add custom extensions there is no need to call
7338 X509V3_EXT_cleanup().
7341 *) Modify enc utility's salting as follows: make salting the default. Add a
7342 magic header, so unsalted files fail gracefully instead of just decrypting
7343 to garbage. This is because not salting is a big security hole, so people
7344 should be discouraged from doing it.
7347 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7348 digest to be passed on the command line but it only used this
7349 parameter when signing a certificate. Modified so all relevant
7350 operations are affected by the digest parameter including the
7351 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7352 DSA key was used because it didn't fix the digest.
7355 *) Initial certificate chain verify code. Currently tests the untrusted
7356 certificates for consistency with the verify purpose (which is set
7357 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7359 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7360 this is because it will reject chains with invalid extensions whereas
7361 every previous version of OpenSSL and SSLeay made no checks at all.
7363 Trust code: checks the root CA for the relevant trust settings. Trust
7364 settings have an initial value consistent with the verify purpose: e.g.
7365 if the verify purpose is for SSL client use it expects the CA to be
7366 trusted for SSL client use. However the default value can be changed to
7367 permit custom trust settings: one example of this would be to only trust
7368 certificates from a specific "secure" set of CAs.
7370 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7371 which should be used for version portability: especially since the
7372 verify structure is likely to change more often now.
7374 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7375 to set them. If not set then assume SSL clients will verify SSL servers
7378 Two new options to the verify program: -untrusted allows a set of
7379 untrusted certificates to be passed in and -purpose which sets the
7380 intended purpose of the certificate. If a purpose is set then the
7381 new chain verify code is used to check extension consistency.
7384 *) Support for the authority information access extension.
7387 *) Modify RSA and DSA PEM read routines to transparently handle
7388 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7389 public keys in a format compatible with certificate
7390 SubjectPublicKeyInfo structures. Unfortunately there were already
7391 functions called *_PublicKey_* which used various odd formats so
7392 these are retained for compatibility: however the DSA variants were
7393 never in a public release so they have been deleted. Changed dsa/rsa
7394 utilities to handle the new format: note no releases ever handled public
7395 keys so we should be OK.
7397 The primary motivation for this change is to avoid the same fiasco
7398 that dogs private keys: there are several incompatible private key
7399 formats some of which are standard and some OpenSSL specific and
7400 require various evil hacks to allow partial transparent handling and
7401 even then it doesn't work with DER formats. Given the option anything
7402 other than PKCS#8 should be dumped: but the other formats have to
7403 stay in the name of compatibility.
7405 With public keys and the benefit of hindsight one standard format
7406 is used which works with EVP_PKEY, RSA or DSA structures: though
7407 it clearly returns an error if you try to read the wrong kind of key.
7409 Added a -pubkey option to the 'x509' utility to output the public key.
7410 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7411 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7412 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7413 that do the same as the EVP_PKEY_assign_*() except they up the
7414 reference count of the added key (they don't "swallow" the
7418 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7419 CRLs would fail if the file contained no certificates or no CRLs:
7420 added a new function to read in both types and return the number
7421 read: this means that if none are read it will be an error. The
7422 DER versions of the certificate and CRL reader would always fail
7423 because it isn't possible to mix certificates and CRLs in DER format
7424 without choking one or the other routine. Changed this to just read
7425 a certificate: this is the best we can do. Also modified the code
7426 in apps/verify.c to take notice of return codes: it was previously
7427 attempting to read in certificates from NULL pointers and ignoring
7428 any errors: this is one reason why the cert and CRL reader seemed
7429 to work. It doesn't check return codes from the default certificate
7430 routines: these may well fail if the certificates aren't installed.
7433 *) Code to support otherName option in GeneralName.
7436 *) First update to verify code. Change the verify utility
7437 so it warns if it is passed a self signed certificate:
7438 for consistency with the normal behaviour. X509_verify
7439 has been modified to it will now verify a self signed
7440 certificate if *exactly* the same certificate appears
7441 in the store: it was previously impossible to trust a
7442 single self signed certificate. This means that:
7443 openssl verify ss.pem
7444 now gives a warning about a self signed certificate but
7445 openssl verify -CAfile ss.pem ss.pem
7449 *) For servers, store verify_result in SSL_SESSION data structure
7450 (and add it to external session representation).
7451 This is needed when client certificate verifications fails,
7452 but an application-provided verification callback (set by
7453 SSL_CTX_set_cert_verify_callback) allows accepting the session
7454 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7455 but returns 1): When the session is reused, we have to set
7456 ssl->verify_result to the appropriate error code to avoid
7458 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7460 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7461 case in PKCS7_dataInit() where the signed PKCS7 structure
7462 didn't contain any existing data because it was being created.
7463 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7465 *) Add a salt to the key derivation routines in enc.c. This
7466 forms the first 8 bytes of the encrypted file. Also add a
7467 -S option to allow a salt to be input on the command line.
7470 *) New function X509_cmp(). Oddly enough there wasn't a function
7471 to compare two certificates. We do this by working out the SHA1
7472 hash and comparing that. X509_cmp() will be needed by the trust
7476 *) SSL_get1_session() is like SSL_get_session(), but increments
7477 the reference count in the SSL_SESSION returned.
7478 [Geoff Thorpe <geoff@eu.c2.net>]
7480 *) Fix for 'req': it was adding a null to request attributes.
7481 Also change the X509_LOOKUP and X509_INFO code to handle
7482 certificate auxiliary information.
7485 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7489 *) Add the possibility to add extra information to the memory leak
7490 detecting output, to form tracebacks, showing from where each
7491 allocation was originated: CRYPTO_push_info("constant string") adds
7492 the string plus current file name and line number to a per-thread
7493 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7494 is like calling CYRPTO_pop_info() until the stack is empty.
7495 Also updated memory leak detection code to be multi-thread-safe.
7498 *) Add options -text and -noout to pkcs7 utility and delete the
7499 encryption options which never did anything. Update docs.
7502 *) Add options to some of the utilities to allow the pass phrase
7503 to be included on either the command line (not recommended on
7504 OSes like Unix) or read from the environment. Update the
7505 manpages and fix a few bugs.
7508 *) Add a few manpages for some of the openssl commands.
7511 *) Fix the -revoke option in ca. It was freeing up memory twice,
7512 leaking and not finding already revoked certificates.
7515 *) Extensive changes to support certificate auxiliary information.
7516 This involves the use of X509_CERT_AUX structure and X509_AUX
7517 functions. An X509_AUX function such as PEM_read_X509_AUX()
7518 can still read in a certificate file in the usual way but it
7519 will also read in any additional "auxiliary information". By
7520 doing things this way a fair degree of compatibility can be
7521 retained: existing certificates can have this information added
7522 using the new 'x509' options.
7524 Current auxiliary information includes an "alias" and some trust
7525 settings. The trust settings will ultimately be used in enhanced
7526 certificate chain verification routines: currently a certificate
7527 can only be trusted if it is self signed and then it is trusted
7531 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7532 The problem was that one of the replacement routines had not been working
7533 since SSLeay releases. For now the offending routine has been replaced
7534 with non-optimised assembler. Even so, this now gives around 95%
7535 performance improvement for 1024 bit RSA signs.
7538 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7539 handling. Most clients have the effective key size in bits equal to
7540 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7541 A few however don't do this and instead use the size of the decrypted key
7542 to determine the RC2 key length and the AlgorithmIdentifier to determine
7543 the effective key length. In this case the effective key length can still
7544 be 40 bits but the key length can be 168 bits for example. This is fixed
7545 by manually forcing an RC2 key into the EVP_PKEY structure because the
7546 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7547 the key length and effective key length are equal.
7550 *) Add a bunch of functions that should simplify the creation of
7551 X509_NAME structures. Now you should be able to do:
7552 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7553 and have it automatically work out the correct field type and fill in
7554 the structures. The more adventurous can try:
7555 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7556 and it will (hopefully) work out the correct multibyte encoding.
7559 *) Change the 'req' utility to use the new field handling and multibyte
7560 copy routines. Before the DN field creation was handled in an ad hoc
7561 way in req, ca, and x509 which was rather broken and didn't support
7562 BMPStrings or UTF8Strings. Since some software doesn't implement
7563 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7564 using the dirstring_type option. See the new comment in the default
7565 openssl.cnf for more info.
7568 *) Make crypto/rand/md_rand.c more robust:
7569 - Assure unique random numbers after fork().
7570 - Make sure that concurrent threads access the global counter and
7571 md serializably so that we never lose entropy in them
7572 or use exactly the same state in multiple threads.
7573 Access to the large state is not always serializable because
7574 the additional locking could be a performance killer, and
7575 md should be large enough anyway.
7578 *) New file apps/app_rand.c with commonly needed functionality
7579 for handling the random seed file.
7581 Use the random seed file in some applications that previously did not:
7583 dsaparam -genkey (which also ignored its '-rand' option),
7586 x509 (when signing).
7587 Except on systems with /dev/urandom, it is crucial to have a random
7588 seed file at least for key creation, DSA signing, and for DH exchanges;
7589 for RSA signatures we could do without one.
7591 gendh and gendsa (unlike genrsa) used to read only the first byte
7592 of each file listed in the '-rand' option. The function as previously
7593 found in genrsa is now in app_rand.c and is used by all programs
7594 that support '-rand'.
7597 *) In RAND_write_file, use mode 0600 for creating files;
7598 don't just chmod when it may be too late.
7601 *) Report an error from X509_STORE_load_locations
7602 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7605 *) New function ASN1_mbstring_copy() this copies a string in either
7606 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7607 into an ASN1_STRING type. A mask of permissible types is passed
7608 and it chooses the "minimal" type to use or an error if not type
7612 *) Add function equivalents to the various macros in asn1.h. The old
7613 macros are retained with an M_ prefix. Code inside the library can
7614 use the M_ macros. External code (including the openssl utility)
7615 should *NOT* in order to be "shared library friendly".
7618 *) Add various functions that can check a certificate's extensions
7619 to see if it usable for various purposes such as SSL client,
7620 server or S/MIME and CAs of these types. This is currently
7621 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7622 verification. Also added a -purpose flag to x509 utility to
7623 print out all the purposes.
7626 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7630 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7631 for, obtain and decode and extension and obtain its critical flag.
7632 This allows all the necessary extension code to be handled in a
7633 single function call.
7636 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7637 platforms. See crypto/rc4/rc4_enc.c for further details.
7640 *) New -noout option to asn1parse. This causes no output to be produced
7641 its main use is when combined with -strparse and -out to extract data
7642 from a file (which may not be in ASN.1 format).
7645 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7646 when producing the local key id.
7647 [Richard Levitte <levitte@stacken.kth.se>]
7649 *) New option -dhparam in s_server. This allows a DH parameter file to be
7650 stated explicitly. If it is not stated then it tries the first server
7651 certificate file. The previous behaviour hard coded the filename
7655 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7656 a public key to be input or output. For example:
7657 openssl rsa -in key.pem -pubout -out pubkey.pem
7658 Also added necessary DSA public key functions to handle this.
7661 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7662 in the message. This was handled by allowing
7663 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7664 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7666 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7667 to the end of the strings whereas this didn't. This would cause problems
7668 if strings read with d2i_ASN1_bytes() were later modified.
7669 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7671 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7672 data and it contains EOF it will end up returning an error. This is
7673 caused by input 46 bytes long. The cause is due to the way base64
7674 BIOs find the start of base64 encoded data. They do this by trying a
7675 trial decode on each line until they find one that works. When they
7676 do a flag is set and it starts again knowing it can pass all the
7677 data directly through the decoder. Unfortunately it doesn't reset
7678 the context it uses. This means that if EOF is reached an attempt
7679 is made to pass two EOFs through the context and this causes the
7680 resulting error. This can also cause other problems as well. As is
7681 usual with these problems it takes *ages* to find and the fix is
7682 trivial: move one line.
7683 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7685 *) Ugly workaround to get s_client and s_server working under Windows. The
7686 old code wouldn't work because it needed to select() on sockets and the
7687 tty (for keypresses and to see if data could be written). Win32 only
7688 supports select() on sockets so we select() with a 1s timeout on the
7689 sockets and then see if any characters are waiting to be read, if none
7690 are present then we retry, we also assume we can always write data to
7691 the tty. This isn't nice because the code then blocks until we've
7692 received a complete line of data and it is effectively polling the
7693 keyboard at 1s intervals: however it's quite a bit better than not
7694 working at all :-) A dedicated Windows application might handle this
7695 with an event loop for example.
7698 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7699 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7700 will be called when RSA_sign() and RSA_verify() are used. This is useful
7701 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7702 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7703 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7704 This necessitated the support of an extra signature type NID_md5_sha1
7705 for SSL signatures and modifications to the SSL library to use it instead
7706 of calling RSA_public_decrypt() and RSA_private_encrypt().
7709 *) Add new -verify -CAfile and -CApath options to the crl program, these
7710 will lookup a CRL issuers certificate and verify the signature in a
7711 similar way to the verify program. Tidy up the crl program so it
7712 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7713 less strict. It will now permit CRL extensions even if it is not
7714 a V2 CRL: this will allow it to tolerate some broken CRLs.
7717 *) Initialize all non-automatic variables each time one of the openssl
7718 sub-programs is started (this is necessary as they may be started
7719 multiple times from the "OpenSSL>" prompt).
7720 [Lennart Bang, Bodo Moeller]
7722 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7723 removing all other RSA functionality (this is what NO_RSA does). This
7724 is so (for example) those in the US can disable those operations covered
7725 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7729 *) Non-copying interface to BIO pairs.
7730 (still largely untested)
7733 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7734 ASCII string. This was handled independently in various places before.
7737 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7738 UTF8 strings a character at a time.
7741 *) Use client_version from client hello to select the protocol
7742 (s23_srvr.c) and for RSA client key exchange verification
7743 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7746 *) Add various utility functions to handle SPKACs, these were previously
7747 handled by poking round in the structure internals. Added new function
7748 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7749 print, verify and generate SPKACs. Based on an original idea from
7750 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7753 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7756 *) Allow the config file extension section to be overwritten on the
7757 command line. Based on an original idea from Massimiliano Pala
7758 <madwolf@comune.modena.it>. The new option is called -extensions
7759 and can be applied to ca, req and x509. Also -reqexts to override
7760 the request extensions in req and -crlexts to override the crl extensions
7764 *) Add new feature to the SPKAC handling in ca. Now you can include
7765 the same field multiple times by preceding it by "XXXX." for example:
7768 this is the same syntax as used in the req config file.
7771 *) Allow certificate extensions to be added to certificate requests. These
7772 are specified in a 'req_extensions' option of the req section of the
7773 config file. They can be printed out with the -text option to req but
7774 are otherwise ignored at present.
7777 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7778 data read consists of only the final block it would not decrypted because
7779 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7780 A misplaced 'break' also meant the decrypted final block might not be
7781 copied until the next read.
7784 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7785 a few extra parameters to the DH structure: these will be useful if
7786 for example we want the value of 'q' or implement X9.42 DH.
7789 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7790 provides hooks that allow the default DSA functions or functions on a
7791 "per key" basis to be replaced. This allows hardware acceleration and
7792 hardware key storage to be handled without major modification to the
7793 library. Also added low level modexp hooks and CRYPTO_EX structure and
7794 associated functions.
7797 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7798 as "read only": it can't be written to and the buffer it points to will
7799 not be freed. Reading from a read only BIO is much more efficient than
7800 a normal memory BIO. This was added because there are several times when
7801 an area of memory needs to be read from a BIO. The previous method was
7802 to create a memory BIO and write the data to it, this results in two
7803 copies of the data and an O(n^2) reading algorithm. There is a new
7804 function BIO_new_mem_buf() which creates a read only memory BIO from
7805 an area of memory. Also modified the PKCS#7 routines to use read only
7809 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7810 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7811 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7812 but a retry condition occured while trying to read the rest.
7815 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7816 NID_pkcs7_encrypted by default: this was wrong since this should almost
7817 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7818 the encrypted data type: this is a more sensible place to put it and it
7819 allows the PKCS#12 code to be tidied up that duplicated this
7823 *) Changed obj_dat.pl script so it takes its input and output files on
7824 the command line. This should avoid shell escape redirection problems
7828 *) Initial support for certificate extension requests, these are included
7829 in things like Xenroll certificate requests. Included functions to allow
7830 extensions to be obtained and added.
7833 *) -crlf option to s_client and s_server for sending newlines as
7834 CRLF (as required by many protocols).
7837 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7839 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7840 [Ralf S. Engelschall]
7842 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7843 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7845 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7849 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7850 DH parameters/keys (q is lost during that conversion, but the resulting
7851 DH parameters contain its length).
7853 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7854 much faster than DH_generate_parameters (which creates parameters
7855 where p = 2*q + 1), and also the smaller q makes DH computations
7856 much more efficient (160-bit exponentiation instead of 1024-bit
7857 exponentiation); so this provides a convenient way to support DHE
7858 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7859 utter importance to use
7860 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7862 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7863 when such DH parameters are used, because otherwise small subgroup
7864 attacks may become possible!
7867 *) Avoid memory leak in i2d_DHparams.
7870 *) Allow the -k option to be used more than once in the enc program:
7871 this allows the same encrypted message to be read by multiple recipients.
7874 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7875 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7876 it will always use the numerical form of the OID, even if it has a short
7880 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7881 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7882 otherwise bn_mod_exp was called. In the case of hardware keys for example
7883 no private key components need be present and it might store extra data
7884 in the RSA structure, which cannot be accessed from bn_mod_exp.
7885 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7886 private key operations.
7889 *) Added support for SPARC Linux.
7892 *) pem_password_cb function type incompatibly changed from
7893 typedef int pem_password_cb(char *buf, int size, int rwflag);
7895 ....(char *buf, int size, int rwflag, void *userdata);
7896 so that applications can pass data to their callbacks:
7897 The PEM[_ASN1]_{read,write}... functions and macros now take an
7898 additional void * argument, which is just handed through whenever
7899 the password callback is called.
7900 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7902 New function SSL_CTX_set_default_passwd_cb_userdata.
7904 Compatibility note: As many C implementations push function arguments
7905 onto the stack in reverse order, the new library version is likely to
7906 interoperate with programs that have been compiled with the old
7907 pem_password_cb definition (PEM_whatever takes some data that
7908 happens to be on the stack as its last argument, and the callback
7909 just ignores this garbage); but there is no guarantee whatsoever that
7912 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7913 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7914 problems not only on Windows, but also on some Unix platforms.
7915 To avoid problematic command lines, these definitions are now in an
7916 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7917 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7920 *) MIPS III/IV assembler module is reimplemented.
7923 *) More DES library cleanups: remove references to srand/rand and
7924 delete an unused file.
7927 *) Add support for the the free Netwide assembler (NASM) under Win32,
7928 since not many people have MASM (ml) and it can be hard to obtain.
7929 This is currently experimental but it seems to work OK and pass all
7930 the tests. Check out INSTALL.W32 for info.
7933 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7934 without temporary keys kept an extra copy of the server key,
7935 and connections with temporary keys did not free everything in case
7939 *) New function RSA_check_key and new openssl rsa option -check
7940 for verifying the consistency of RSA keys.
7941 [Ulf Moeller, Bodo Moeller]
7943 *) Various changes to make Win32 compile work:
7944 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7945 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7946 comparison" warnings.
7947 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7950 *) Add a debugging option to PKCS#5 v2 key generation function: when
7951 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7952 derived keys are printed to stderr.
7955 *) Copy the flags in ASN1_STRING_dup().
7956 [Roman E. Pavlov <pre@mo.msk.ru>]
7958 *) The x509 application mishandled signing requests containing DSA
7959 keys when the signing key was also DSA and the parameters didn't match.
7961 It was supposed to omit the parameters when they matched the signing key:
7962 the verifying software was then supposed to automatically use the CA's
7963 parameters if they were absent from the end user certificate.
7965 Omitting parameters is no longer recommended. The test was also
7966 the wrong way round! This was probably due to unusual behaviour in
7967 EVP_cmp_parameters() which returns 1 if the parameters match.
7968 This meant that parameters were omitted when they *didn't* match and
7969 the certificate was useless. Certificates signed with 'ca' didn't have
7971 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7973 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7974 The interface is as follows:
7975 Applications can use
7976 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7977 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7978 "off" is now the default.
7979 The library internally uses
7980 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7981 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7982 to disable memory-checking temporarily.
7984 Some inconsistent states that previously were possible (and were
7985 even the default) are now avoided.
7987 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7988 with each memory chunk allocated; this is occasionally more helpful
7989 than just having a counter.
7991 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7993 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7997 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7998 which largely parallels "options", but is for changing API behaviour,
7999 whereas "options" are about protocol behaviour.
8000 Initial "mode" flags are:
8002 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8003 a single record has been written.
8004 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8005 retries use the same buffer location.
8006 (But all of the contents must be
8010 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8013 *) Fix problems with no-hmac etc.
8014 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8016 *) New functions RSA_get_default_method(), RSA_set_method() and
8017 RSA_get_method(). These allows replacement of RSA_METHODs without having
8018 to mess around with the internals of an RSA structure.
8021 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8022 Also really enable memory leak checks in openssl.c and in some
8024 [Chad C. Mulligan, Bodo Moeller]
8026 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8027 up the length of negative integers. This has now been simplified to just
8028 store the length when it is first determined and use it later, rather
8029 than trying to keep track of where data is copied and updating it to
8031 [Steve Henson, reported by Brien Wheeler
8032 <bwheeler@authentica-security.com>]
8034 *) Add a new function PKCS7_signatureVerify. This allows the verification
8035 of a PKCS#7 signature but with the signing certificate passed to the
8036 function itself. This contrasts with PKCS7_dataVerify which assumes the
8037 certificate is present in the PKCS#7 structure. This isn't always the
8038 case: certificates can be omitted from a PKCS#7 structure and be
8039 distributed by "out of band" means (such as a certificate database).
8042 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8043 function prototypes in pem.h, also change util/mkdef.pl to add the
8044 necessary function names.
8047 *) mk1mf.pl (used by Windows builds) did not properly read the
8048 options set by Configure in the top level Makefile, and Configure
8049 was not even able to write more than one option correctly.
8050 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8053 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8054 file to be loaded from a BIO or FILE pointer. The BIO version will
8055 for example allow memory BIOs to contain config info.
8058 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8059 Whoever hopes to achieve shared-library compatibility across versions
8060 must use this, not the compile-time macro.
8061 (Exercise 0.9.4: Which is the minimum library version required by
8063 Note: All this applies only to multi-threaded programs, others don't
8067 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8068 through a BIO pair triggered the default case, i.e.
8069 SSLerr(...,SSL_R_UNKNOWN_STATE).
8072 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8073 can use the SSL library even if none of the specific BIOs is
8077 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8078 for the encoded length.
8079 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8081 *) Add initial documentation of the X509V3 functions.
8084 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8085 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8086 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8087 secure PKCS#8 private key format with a high iteration count.
8090 *) Fix determination of Perl interpreter: A perl or perl5
8091 _directory_ in $PATH was also accepted as the interpreter.
8092 [Ralf S. Engelschall]
8094 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8095 wrong with it but it was very old and did things like calling
8096 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8100 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8101 to use the new extension code.
8104 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8105 with macros. This should make it easier to change their form, add extra
8106 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8110 *) Add to configuration table a new entry that can specify an alternative
8111 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8112 according to Mark Crispin <MRC@Panda.COM>.
8116 *) DES CBC did not update the IV. Weird.
8119 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8120 Changing the behaviour of the former might break existing programs --
8121 where IV updating is needed, des_ncbc_encrypt can be used.
8124 *) When bntest is run from "make test" it drives bc to check its
8125 calculations, as well as internally checking them. If an internal check
8126 fails, it needs to cause bc to give a non-zero result or make test carries
8127 on without noticing the failure. Fixed.
8130 *) DES library cleanups.
8133 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8134 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8135 ciphers. NOTE: although the key derivation function has been verified
8136 against some published test vectors it has not been extensively tested
8137 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8141 *) Instead of "mkdir -p", which is not fully portable, use new
8142 Perl script "util/mkdir-p.pl".
8145 *) Rewrite the way password based encryption (PBE) is handled. It used to
8146 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8147 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8148 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8149 the 'parameter' field of the AlgorithmIdentifier is passed to the
8150 underlying key generation function so it must do its own ASN1 parsing.
8151 This has also changed the EVP_PBE_CipherInit() function which now has a
8152 'parameter' argument instead of literal salt and iteration count values
8153 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8156 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8157 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8158 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8159 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8160 value was just used as a "magic string" and not used directly its
8161 value doesn't matter.
8164 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8168 *) "linux-sparc64" configuration (ultrapenguin).
8169 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8170 "linux-sparc" configuration.
8171 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8173 *) config now generates no-xxx options for missing ciphers.
8176 *) Support the EBCDIC character set (work in progress).
8177 File ebcdic.c not yet included because it has a different license.
8178 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8180 *) Support BS2000/OSD-POSIX.
8181 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8183 *) Make callbacks for key generation use void * instead of char *.
8186 *) Make S/MIME samples compile (not yet tested).
8189 *) Additional typesafe stacks.
8192 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8196 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8198 *) New configuration variant "sco5-gcc".
8200 *) Updated some demos.
8201 [Sean O Riordain, Wade Scholine]
8203 *) Add missing BIO_free at exit of pkcs12 application.
8206 *) Fix memory leak in conf.c.
8209 *) Updates for Win32 to assembler version of MD5.
8212 *) Set #! path to perl in apps/der_chop to where we found it
8213 instead of using a fixed path.
8216 *) SHA library changes for irix64-mips4-cc.
8219 *) Improvements for VMS support.
8223 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8225 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8226 This also avoids the problems with SC4.2 and unpatched SC5.
8227 [Andy Polyakov <appro@fy.chalmers.se>]
8229 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8230 These are required because of the typesafe stack would otherwise break
8231 existing code. If old code used a structure member which used to be STACK
8232 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8233 sk_num or sk_value it would produce an error because the num, data members
8234 are not present in STACK_OF. Now it just produces a warning. sk_set
8235 replaces the old method of assigning a value to sk_value
8236 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8237 that does this will no longer work (and should use sk_set instead) but
8238 this could be regarded as a "questionable" behaviour anyway.
8241 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8242 correctly handle encrypted S/MIME data.
8245 *) Change type of various DES function arguments from des_cblock
8246 (which means, in function argument declarations, pointer to char)
8247 to des_cblock * (meaning pointer to array with 8 char elements),
8248 which allows the compiler to do more typechecking; it was like
8249 that back in SSLeay, but with lots of ugly casts.
8251 Introduce new type const_des_cblock.
8254 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8255 problems: find RecipientInfo structure that matches recipient certificate
8256 and initialise the ASN1 structures properly based on passed cipher.
8259 *) Belatedly make the BN tests actually check the results.
8262 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8263 to and from BNs: it was completely broken. New compilation option
8264 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8265 key elements as negative integers.
8268 *) Reorganize and speed up MD5.
8269 [Andy Polyakov <appro@fy.chalmers.se>]
8272 [Richard Levitte <richard@levitte.org>]
8274 *) New option -out to asn1parse to allow the parsed structure to be
8275 output to a file. This is most useful when combined with the -strparse
8276 option to examine the output of things like OCTET STRINGS.
8279 *) Make SSL library a little more fool-proof by not requiring any longer
8280 that SSL_set_{accept,connect}_state be called before
8281 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8282 in many applications because usually everything *appeared* to work as
8283 intended anyway -- now it really works as intended).
8286 *) Move openssl.cnf out of lib/.
8289 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8290 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8291 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8292 [Ralf S. Engelschall]
8294 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8295 handle PKCS#7 enveloped data properly.
8296 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8298 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8299 copying pointers. The cert_st handling is changed by this in
8300 various ways (and thus what used to be known as ctx->default_cert
8301 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8302 any longer when s->cert does not give us what we need).
8303 ssl_cert_instantiate becomes obsolete by this change.
8304 As soon as we've got the new code right (possibly it already is?),
8305 we have solved a couple of bugs of the earlier code where s->cert
8306 was used as if it could not have been shared with other SSL structures.
8308 Note that using the SSL API in certain dirty ways now will result
8309 in different behaviour than observed with earlier library versions:
8310 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8311 does not influence s as it used to.
8313 In order to clean up things more thoroughly, inside SSL_SESSION
8314 we don't use CERT any longer, but a new structure SESS_CERT
8315 that holds per-session data (if available); currently, this is
8316 the peer's certificate chain and, for clients, the server's certificate
8317 and temporary key. CERT holds only those values that can have
8318 meaningful defaults in an SSL_CTX.
8321 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8322 from the internal representation. Various PKCS#7 fixes: remove some
8323 evil casts and set the enc_dig_alg field properly based on the signing
8327 *) Allow PKCS#12 password to be set from the command line or the
8328 environment. Let 'ca' get its config file name from the environment
8329 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8333 *) Allow certificate policies extension to use an IA5STRING for the
8334 organization field. This is contrary to the PKIX definition but
8335 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8339 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8340 without disallowing inline assembler and the like for non-pedantic builds.
8343 *) Support Borland C++ builder.
8344 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8349 *) SHA-1 cleanups and performance enhancements.
8350 [Andy Polyakov <appro@fy.chalmers.se>]
8352 *) Sparc v8plus assembler for the bignum library.
8353 [Andy Polyakov <appro@fy.chalmers.se>]
8355 *) Accept any -xxx and +xxx compiler options in Configure.
8358 *) Update HPUX configuration.
8361 *) Add missing sk_<type>_unshift() function to safestack.h
8362 [Ralf S. Engelschall]
8364 *) New function SSL_CTX_use_certificate_chain_file that sets the
8365 "extra_cert"s in addition to the certificate. (This makes sense
8366 only for "PEM" format files, as chains as a whole are not
8370 *) Support verify_depth from the SSL API.
8371 x509_vfy.c had what can be considered an off-by-one-error:
8372 Its depth (which was not part of the external interface)
8373 was actually counting the number of certificates in a chain;
8374 now it really counts the depth.
8377 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8378 instead of X509err, which often resulted in confusing error
8379 messages since the error codes are not globally unique
8380 (e.g. an alleged error in ssl3_accept when a certificate
8381 didn't match the private key).
8383 *) New function SSL_CTX_set_session_id_context that allows to set a default
8384 value (so that you don't need SSL_set_session_id_context for each
8385 connection using the SSL_CTX).
8388 *) OAEP decoding bug fix.
8391 *) Support INSTALL_PREFIX for package builders, as proposed by
8395 *) New Configure options "threads" and "no-threads". For systems
8396 where the proper compiler options are known (currently Solaris
8397 and Linux), "threads" is the default.
8400 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8403 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8404 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8405 such as /usr/local/bin.
8408 *) "make linux-shared" to build shared libraries.
8409 [Niels Poppe <niels@netbox.org>]
8411 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8414 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8415 extension adding in x509 utility.
8418 *) Remove NOPROTO sections and error code comments.
8421 *) Partial rewrite of the DEF file generator to now parse the ANSI
8425 *) New Configure options --prefix=DIR and --openssldir=DIR.
8428 *) Complete rewrite of the error code script(s). It is all now handled
8429 by one script at the top level which handles error code gathering,
8430 header rewriting and C source file generation. It should be much better
8431 than the old method: it now uses a modified version of Ulf's parser to
8432 read the ANSI prototypes in all header files (thus the old K&R definitions
8433 aren't needed for error creation any more) and do a better job of
8434 translating function codes into names. The old 'ASN1 error code imbedded
8435 in a comment' is no longer necessary and it doesn't use .err files which
8436 have now been deleted. Also the error code call doesn't have to appear all
8437 on one line (which resulted in some large lines...).
8440 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8443 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8444 0 (which usually indicates a closed connection), but continue reading.
8447 *) Fix some race conditions.
8450 *) Add support for CRL distribution points extension. Add Certificate
8451 Policies and CRL distribution points documentation.
8454 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8457 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8458 8 of keying material. Merlin has also confirmed interop with this fix
8459 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8460 [Merlin Hughes <merlin@baltimore.ie>]
8462 *) Fix lots of warnings.
8463 [Richard Levitte <levitte@stacken.kth.se>]
8465 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8466 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8467 [Richard Levitte <levitte@stacken.kth.se>]
8469 *) Fix problems with sizeof(long) == 8.
8470 [Andy Polyakov <appro@fy.chalmers.se>]
8472 *) Change functions to ANSI C.
8475 *) Fix typos in error codes.
8476 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8478 *) Remove defunct assembler files from Configure.
8481 *) SPARC v8 assembler BIGNUM implementation.
8482 [Andy Polyakov <appro@fy.chalmers.se>]
8484 *) Support for Certificate Policies extension: both print and set.
8485 Various additions to support the r2i method this uses.
8488 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8489 return a const string when you are expecting an allocated buffer.
8492 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8493 types DirectoryString and DisplayText.
8496 *) Add code to allow r2i extensions to access the configuration database,
8497 add an LHASH database driver and add several ctx helper functions.
8500 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8501 fail when they extended the size of a BIGNUM.
8504 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8505 support typesafe stack.
8508 *) Fix typo in SSL_[gs]et_options().
8509 [Nils Frostberg <nils@medcom.se>]
8511 *) Delete various functions and files that belonged to the (now obsolete)
8512 old X509V3 handling code.
8515 *) New Configure option "rsaref".
8518 *) Don't auto-generate pem.h.
8521 *) Introduce type-safe ASN.1 SETs.
8524 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8525 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8527 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8528 that links with OpenSSL (well at least cause lots of warnings), but fear
8529 not: the conversion is trivial, and it eliminates loads of evil casts. A
8530 few STACKed things have been converted already. Feel free to convert more.
8531 In the fullness of time, I'll do away with the STACK type altogether.
8534 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8535 specified in <certfile> by updating the entry in the index.txt file.
8536 This way one no longer has to edit the index.txt file manually for
8537 revoking a certificate. The -revoke option does the gory details now.
8538 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8540 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8541 `-text' option at all and this way the `-noout -text' combination was
8542 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8543 [Ralf S. Engelschall]
8545 *) Make sure a corresponding plain text error message exists for the
8546 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8547 verify callback function determined that a certificate was revoked.
8548 [Ralf S. Engelschall]
8550 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8551 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8552 all available cipers including rc5, which was forgotten until now.
8553 In order to let the testing shell script know which algorithms
8554 are available, a new (up to now undocumented) command
8555 "openssl list-cipher-commands" is used.
8558 *) Bugfix: s_client occasionally would sleep in select() when
8559 it should have checked SSL_pending() first.
8562 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8563 the raw DSA values prior to ASN.1 encoding.
8566 *) Tweaks to Configure
8567 [Niels Poppe <niels@netbox.org>]
8569 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8573 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8576 *) New config option to avoid instructions that are illegal on the 80386.
8577 The default code is faster, but requires at least a 486.
8580 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8581 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8582 same as SSL2_VERSION anyway.
8585 *) New "-showcerts" option for s_client.
8588 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8589 application. Various cleanups and fixes.
8592 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8593 modify error routines to work internally. Add error codes and PBE init
8594 to library startup routines.
8597 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8598 packing functions to asn1 and evp. Changed function names and error
8599 codes along the way.
8602 *) PKCS12 integration: and so it begins... First of several patches to
8603 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8604 objects to objects.h
8607 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8608 and display support for Thawte strong extranet extension.
8611 *) Add LinuxPPC support.
8612 [Jeff Dubrule <igor@pobox.org>]
8614 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8615 bn_div_words in alpha.s.
8616 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8618 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8619 OAEP isn't supported when OpenSSL is built with RSAref.
8620 [Ulf Moeller <ulf@fitug.de>]
8622 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8623 so they no longer are missing under -DNOPROTO.
8624 [Soren S. Jorvang <soren@t.dk>]
8627 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8629 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8630 doesn't work when the session is reused. Coming soon!
8633 *) Fix a security hole, that allows sessions to be reused in the wrong
8634 context thus bypassing client cert protection! All software that uses
8635 client certs and session caches in multiple contexts NEEDS PATCHING to
8636 allow session reuse! A fuller solution is in the works.
8637 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8639 *) Some more source tree cleanups (removed obsolete files
8640 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8641 permission on "config" script to be executable) and a fix for the INSTALL
8643 [Ulf Moeller <ulf@fitug.de>]
8645 *) Remove some legacy and erroneous uses of malloc, free instead of
8647 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8649 *) Make rsa_oaep_test return non-zero on error.
8650 [Ulf Moeller <ulf@fitug.de>]
8652 *) Add support for native Solaris shared libraries. Configure
8653 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8654 if someone would make that last step automatic.
8655 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8657 *) ctx_size was not built with the right compiler during "make links". Fixed.
8660 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8661 except NULL ciphers". This means the default cipher list will no longer
8662 enable NULL ciphers. They need to be specifically enabled e.g. with
8663 the string "DEFAULT:eNULL".
8666 *) Fix to RSA private encryption routines: if p < q then it would
8667 occasionally produce an invalid result. This will only happen with
8668 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8671 *) Be less restrictive and allow also `perl util/perlpath.pl
8672 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8673 because this way one can also use an interpreter named `perl5' (which is
8674 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8675 installed as `perl').
8676 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8678 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8679 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8681 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8682 advapi32.lib to Win32 build and change the pem test comparision
8683 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8684 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8685 and crypto/des/ede_cbcm_enc.c.
8688 *) DES quad checksum was broken on big-endian architectures. Fixed.
8691 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8692 Win32 test batch file so it (might) work again. The Win32 test batch file
8693 is horrible: I feel ill....
8696 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8697 in e_os.h. Audit of header files to check ANSI and non ANSI
8698 sections: 10 functions were absent from non ANSI section and not exported
8699 from Windows DLLs. Fixed up libeay.num for new functions.
8702 *) Make `openssl version' output lines consistent.
8703 [Ralf S. Engelschall]
8705 *) Fix Win32 symbol export lists for BIO functions: Added
8706 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8707 to ms/libeay{16,32}.def.
8708 [Ralf S. Engelschall]
8710 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8711 fine under Unix and passes some trivial tests I've now added. But the
8712 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8713 added to make sure no one expects that this stuff really works in the
8714 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8715 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8717 [Ralf S. Engelschall]
8719 *) Fix the generation of two part addresses in perl.
8720 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8722 *) Add config entry for Linux on MIPS.
8723 [John Tobey <jtobey@channel1.com>]
8725 *) Make links whenever Configure is run, unless we are on Windoze.
8728 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8729 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8733 *) Add a useful kludge to allow package maintainers to specify compiler and
8734 other platforms details on the command line without having to patch the
8735 Configure script everytime: One now can use ``perl Configure
8736 <id>:<details>'', i.e. platform ids are allowed to have details appended
8737 to them (seperated by colons). This is treated as there would be a static
8738 pre-configured entry in Configure's %table under key <id> with value
8739 <details> and ``perl Configure <id>'' is called. So, when you want to
8740 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8741 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8742 now, which overrides the FreeBSD-elf entry on-the-fly.
8743 [Ralf S. Engelschall]
8745 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8748 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8749 on the `perl Configure ...' command line. This way one can compile
8750 OpenSSL libraries with Position Independent Code (PIC) which is needed
8751 for linking it into DSOs.
8752 [Ralf S. Engelschall]
8754 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8758 *) Cleaned up the LICENSE document: The official contact for any license
8759 questions now is the OpenSSL core team under openssl-core@openssl.org.
8760 And add a paragraph about the dual-license situation to make sure people
8761 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8762 to the OpenSSL toolkit.
8763 [Ralf S. Engelschall]
8765 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8766 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8767 Additonally cleaned up the `make links' target: Remove unnecessary
8768 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8769 to speed processing and no longer clutter the display with confusing
8770 stuff. Instead only the actually done links are displayed.
8771 [Ralf S. Engelschall]
8773 *) Permit null encryption ciphersuites, used for authentication only. It used
8774 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8775 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8779 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8780 signed attributes when verifying signatures (this would break them),
8781 the detached data encoding was wrong and public keys obtained using
8782 X509_get_pubkey() weren't freed.
8785 *) Add text documentation for the BUFFER functions. Also added a work around
8786 to a Win95 console bug. This was triggered by the password read stuff: the
8787 last character typed gets carried over to the next fread(). If you were
8788 generating a new cert request using 'req' for example then the last
8789 character of the passphrase would be CR which would then enter the first
8793 *) Added the new `Includes OpenSSL Cryptography Software' button as
8794 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8795 button and can be used by applications based on OpenSSL to show the
8796 relationship to the OpenSSL project.
8797 [Ralf S. Engelschall]
8799 *) Remove confusing variables in function signatures in files
8800 ssl/ssl_lib.c and ssl/ssl.h.
8801 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8803 *) Don't install bss_file.c under PREFIX/include/
8804 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8806 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8807 functions that return function pointers and has support for NT specific
8808 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8809 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8810 unsigned to signed types: this was killing the Win32 compile.
8813 *) Add new certificate file to stack functions,
8814 SSL_add_dir_cert_subjects_to_stack() and
8815 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8816 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8817 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8818 This means that Apache-SSL and similar packages don't have to mess around
8819 to add as many CAs as they want to the preferred list.
8822 *) Experiment with doxygen documentation. Currently only partially applied to
8824 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8825 openssl.doxy as the configuration file.
8828 *) Get rid of remaining C++-style comments which strict C compilers hate.
8829 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8831 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8832 compiled in by default: it has problems with large keys.
8835 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8836 DH private keys and/or callback functions which directly correspond to
8837 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8838 is needed for applications which have to configure certificates on a
8839 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8841 For the RSA certificate situation is makes no difference, but
8842 for the DSA certificate situation this fixes the "no shared cipher"
8843 problem where the OpenSSL cipher selection procedure failed because the
8844 temporary keys were not overtaken from the context and the API provided
8845 no way to reconfigure them.
8846 The new functions now let applications reconfigure the stuff and they
8847 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8848 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8849 non-public-API function ssl_cert_instantiate() is used as a helper
8850 function and also to reduce code redundancy inside ssl_rsa.c.
8851 [Ralf S. Engelschall]
8853 *) Move s_server -dcert and -dkey options out of the undocumented feature
8854 area because they are useful for the DSA situation and should be
8855 recognized by the users.
8856 [Ralf S. Engelschall]
8858 *) Fix the cipher decision scheme for export ciphers: the export bits are
8859 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8860 SSL_EXP_MASK. So, the original variable has to be used instead of the
8861 already masked variable.
8862 [Richard Levitte <levitte@stacken.kth.se>]
8864 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8865 [Richard Levitte <levitte@stacken.kth.se>]
8867 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8868 from `int' to `unsigned int' because it's a length and initialized by
8869 EVP_DigestFinal() which expects an `unsigned int *'.
8870 [Richard Levitte <levitte@stacken.kth.se>]
8872 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8873 script. Instead use the usual Shell->Perl transition trick.
8874 [Ralf S. Engelschall]
8876 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8877 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8878 -noout -modulus' as it's already the case for `openssl rsa -noout
8879 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8880 currently the public key is printed (a decision which was already done by
8881 `openssl dsa -modulus' in the past) which serves a similar purpose.
8882 Additionally the NO_RSA no longer completely removes the whole -modulus
8883 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8885 [Ralf S. Engelschall]
8887 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8888 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8889 [Arne Ansper <arne@ats.cyber.ee>]
8891 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8892 to be added. Now both 'req' and 'ca' can use new objects defined in the
8896 *) Add cool BIO that does syslog (or event log on NT).
8897 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8899 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8900 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8901 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8902 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8905 *) Add preliminary config info for new extension code.
8908 *) Make RSA_NO_PADDING really use no padding.
8909 [Ulf Moeller <ulf@fitug.de>]
8911 *) Generate errors when private/public key check is done.
8914 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8915 for some CRL extensions and new objects added.
8918 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8919 key usage extension and fuller support for authority key id.
8922 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8923 padding method for RSA, which is recommended for new applications in PKCS
8924 #1 v2.0 (RFC 2437, October 1998).
8925 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8926 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8927 against Bleichbacher's attack on RSA.
8928 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8931 *) Updates to the new SSL compression code
8932 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8934 *) Fix so that the version number in the master secret, when passed
8935 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8936 (because the server will not accept higher), that the version number
8937 is 0x03,0x01, not 0x03,0x00
8938 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8940 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8941 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8942 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8945 *) Support for RAW extensions where an arbitrary extension can be
8946 created by including its DER encoding. See apps/openssl.cnf for
8950 *) Make sure latest Perl versions don't interpret some generated C array
8951 code as Perl array code in the crypto/err/err_genc.pl script.
8952 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8954 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8955 not many people have the assembler. Various Win32 compilation fixes and
8956 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8960 *) Modify configure script 'Configure' to automatically create crypto/date.h
8961 file under Win32 and also build pem.h from pem.org. New script
8962 util/mkfiles.pl to create the MINFO file on environments that can't do a
8963 'make files': perl util/mkfiles.pl >MINFO should work.
8966 *) Major rework of DES function declarations, in the pursuit of correctness
8967 and purity. As a result, many evil casts evaporated, and some weirdness,
8968 too. You may find this causes warnings in your code. Zapping your evil
8969 casts will probably fix them. Mostly.
8972 *) Fix for a typo in asn1.h. Bug fix to object creation script
8973 obj_dat.pl. It considered a zero in an object definition to mean
8974 "end of object": none of the objects in objects.h have any zeros
8975 so it wasn't spotted.
8976 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8978 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8979 Masking (CBCM). In the absence of test vectors, the best I have been able
8980 to do is check that the decrypt undoes the encrypt, so far. Send me test
8981 vectors if you have them.
8984 *) Correct calculation of key length for export ciphers (too much space was
8985 allocated for null ciphers). This has not been tested!
8988 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8989 message is now correct (it understands "crypto" and "ssl" on its
8990 command line). There is also now an "update" option. This will update
8991 the util/ssleay.num and util/libeay.num files with any new functions.
8993 perl util/mkdef.pl crypto ssl update
8994 it will update them.
8997 *) Overhauled the Perl interface (perl/*):
8998 - ported BN stuff to OpenSSL's different BN library
8999 - made the perl/ source tree CVS-aware
9000 - renamed the package from SSLeay to OpenSSL (the files still contain
9001 their history because I've copied them in the repository)
9002 - removed obsolete files (the test scripts will be replaced
9003 by better Test::Harness variants in the future)
9004 [Ralf S. Engelschall]
9006 *) First cut for a very conservative source tree cleanup:
9007 1. merge various obsolete readme texts into doc/ssleay.txt
9008 where we collect the old documents and readme texts.
9009 2. remove the first part of files where I'm already sure that we no
9010 longer need them because of three reasons: either they are just temporary
9011 files which were left by Eric or they are preserved original files where
9012 I've verified that the diff is also available in the CVS via "cvs diff
9013 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9014 the crypto/md/ stuff).
9015 [Ralf S. Engelschall]
9017 *) More extension code. Incomplete support for subject and issuer alt
9018 name, issuer and authority key id. Change the i2v function parameters
9019 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9020 what that's for :-) Fix to ASN1 macro which messed up
9021 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9024 *) Preliminary support for ENUMERATED type. This is largely copied from the
9028 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9029 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9031 *) Make sure `make rehash' target really finds the `openssl' program.
9032 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9034 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9035 like to hear about it if this slows down other processors.
9038 *) Add CygWin32 platform information to Configure script.
9039 [Alan Batie <batie@aahz.jf.intel.com>]
9041 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9042 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9044 *) New program nseq to manipulate netscape certificate sequences
9047 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9051 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9052 but the BN code had some problems that would cause failures when
9053 doing certificate verification and some other functions.
9054 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9056 *) Add ASN1 and PEM code to support netscape certificate sequences.
9059 *) Add ASN1 and PEM code to support netscape certificate sequences.
9062 *) Add several PKIX and private extended key usage OIDs.
9065 *) Modify the 'ca' program to handle the new extension code. Modify
9066 openssl.cnf for new extension format, add comments.
9069 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9070 and add a sample to openssl.cnf so req -x509 now adds appropriate
9074 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9075 error code, add initial support to X509_print() and x509 application.
9078 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9079 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9080 stuff is currently isolated and isn't even compiled yet.
9083 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9084 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9085 Removed the versions check from X509 routines when loading extensions:
9086 this allows certain broken certificates that don't set the version
9087 properly to be processed.
9090 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9091 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9092 can still be regenerated with "make depend".
9095 *) Spelling mistake in C version of CAST-128.
9096 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9098 *) Changes to the error generation code. The perl script err-code.pl
9099 now reads in the old error codes and retains the old numbers, only
9100 adding new ones if necessary. It also only changes the .err files if new
9101 codes are added. The makefiles have been modified to only insert errors
9102 when needed (to avoid needlessly modifying header files). This is done
9103 by only inserting errors if the .err file is newer than the auto generated
9104 C file. To rebuild all the error codes from scratch (the old behaviour)
9105 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9106 or delete all the .err files.
9109 *) CAST-128 was incorrectly implemented for short keys. The C version has
9110 been fixed, but is untested. The assembler versions are also fixed, but
9111 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9112 to regenerate it if needed.
9113 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9114 Hagino <itojun@kame.net>]
9116 *) File was opened incorrectly in randfile.c.
9117 [Ulf Möller <ulf@fitug.de>]
9119 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9120 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9121 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9122 al: it's just almost always a UTCTime. Note this patch adds new error
9123 codes so do a "make errors" if there are problems.
9126 *) Correct Linux 1 recognition in config.
9127 [Ulf Möller <ulf@fitug.de>]
9129 *) Remove pointless MD5 hash when using DSA keys in ca.
9130 [Anonymous <nobody@replay.com>]
9132 *) Generate an error if given an empty string as a cert directory. Also
9133 generate an error if handed NULL (previously returned 0 to indicate an
9134 error, but didn't set one).
9135 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9137 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9140 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9141 parameters. This was causing a warning which killed off the Win32 compile.
9144 *) Remove C++ style comments from crypto/bn/bn_local.h.
9145 [Neil Costigan <neil.costigan@celocom.com>]
9147 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9148 based on a text string, looking up short and long names and finally
9149 "dot" format. The "dot" format stuff didn't work. Added new function
9150 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9151 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9152 OID is not part of the table.
9155 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9156 X509_LOOKUP_by_alias().
9159 *) Sort openssl functions by name.
9162 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9163 encryption from sample DSA keys (in case anyone is interested the password
9167 *) Make _all_ *_free functions accept a NULL pointer.
9168 [Frans Heymans <fheymans@isaserver.be>]
9170 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9172 [Anonymous <nobody@replay.com>]
9174 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9175 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9177 *) Don't blow it for numeric -newkey arguments to apps/req.
9178 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9180 *) Temp key "for export" tests were wrong in s3_srvr.c.
9181 [Anonymous <nobody@replay.com>]
9183 *) Add prototype for temp key callback functions
9184 SSL_CTX_set_tmp_{rsa,dh}_callback().
9187 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9188 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9191 *) X509_name_add_entry() freed the wrong thing after an error.
9192 [Arne Ansper <arne@ats.cyber.ee>]
9194 *) rsa_eay.c would attempt to free a NULL context.
9195 [Arne Ansper <arne@ats.cyber.ee>]
9197 *) BIO_s_socket() had a broken should_retry() on Windoze.
9198 [Arne Ansper <arne@ats.cyber.ee>]
9200 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9201 [Arne Ansper <arne@ats.cyber.ee>]
9203 *) Make sure the already existing X509_STORE->depth variable is initialized
9204 in X509_STORE_new(), but document the fact that this variable is still
9205 unused in the certificate verification process.
9206 [Ralf S. Engelschall]
9208 *) Fix the various library and apps files to free up pkeys obtained from
9209 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9212 *) Fix reference counting in X509_PUBKEY_get(). This makes
9213 demos/maurice/example2.c work, amongst others, probably.
9214 [Steve Henson and Ben Laurie]
9216 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9217 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9218 are no longer created. This way we have a single and consistent command
9219 line interface `openssl <command>', similar to `cvs <command>'.
9220 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9222 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9223 BIT STRING wrapper always have zero unused bits.
9226 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9229 *) Make the top-level INSTALL documentation easier to understand.
9232 *) Makefiles updated to exit if an error occurs in a sub-directory
9233 make (including if user presses ^C) [Paul Sutton]
9235 *) Make Montgomery context stuff explicit in RSA data structure.
9238 *) Fix build order of pem and err to allow for generated pem.h.
9241 *) Fix renumbering bug in X509_NAME_delete_entry().
9244 *) Enhanced the err-ins.pl script so it makes the error library number
9245 global and can add a library name. This is needed for external ASN1 and
9246 other error libraries.
9249 *) Fixed sk_insert which never worked properly.
9252 *) Fix ASN1 macros so they can handle indefinite length construted
9253 EXPLICIT tags. Some non standard certificates use these: they can now
9257 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9258 into a single doc/ssleay.txt bundle. This way the information is still
9259 preserved but no longer messes up this directory. Now it's new room for
9260 the new set of documenation files.
9261 [Ralf S. Engelschall]
9263 *) SETs were incorrectly DER encoded. This was a major pain, because they
9264 shared code with SEQUENCEs, which aren't coded the same. This means that
9265 almost everything to do with SETs or SEQUENCEs has either changed name or
9266 number of arguments.
9267 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9269 *) Fix test data to work with the above.
9272 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9273 was already fixed by Eric for 0.9.1 it seems.
9274 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9276 *) Autodetect FreeBSD3.
9279 *) Fix various bugs in Configure. This affects the following platforms:
9283 unixware-2.0-pentium
9287 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9288 before they are needed.
9291 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9295 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9297 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9298 changed SSLeay to OpenSSL in version strings.
9299 [Ralf S. Engelschall]
9301 *) Some fixups to the top-level documents.
9304 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9305 because the symlink to include/ was missing.
9306 [Ralf S. Engelschall]
9308 *) Incorporated the popular no-RSA/DSA-only patches
9309 which allow to compile a RSA-free SSLeay.
9310 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9312 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9313 when "ssleay" is still not found.
9314 [Ralf S. Engelschall]
9316 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9317 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9319 *) Updated the README file.
9320 [Ralf S. Engelschall]
9322 *) Added various .cvsignore files in the CVS repository subdirs
9323 to make a "cvs update" really silent.
9324 [Ralf S. Engelschall]
9326 *) Recompiled the error-definition header files and added
9327 missing symbols to the Win32 linker tables.
9328 [Ralf S. Engelschall]
9330 *) Cleaned up the top-level documents;
9331 o new files: CHANGES and LICENSE
9332 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9333 o merged COPYRIGHT into LICENSE
9334 o removed obsolete TODO file
9335 o renamed MICROSOFT to INSTALL.W32
9336 [Ralf S. Engelschall]
9338 *) Removed dummy files from the 0.9.1b source tree:
9339 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9340 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9341 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9342 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9343 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9344 [Ralf S. Engelschall]
9346 *) Added various platform portability fixes.
9349 *) The Genesis of the OpenSSL rpject:
9350 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9351 Young and Tim J. Hudson created while they were working for C2Net until
9353 [The OpenSSL Project]
9356 Changes between 0.9.0b and 0.9.1b [not released]
9358 *) Updated a few CA certificates under certs/
9361 *) Changed some BIGNUM api stuff.
9364 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9365 DGUX x86, Linux Alpha, etc.
9368 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9369 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9373 *) Add -strparse option to asn1pars program which parses nested
9375 [Dr Stephen Henson <shenson@bigfoot.com>]
9377 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9380 *) DSA fix for "ca" program.
9383 *) Added "-genkey" option to "dsaparam" program.
9386 *) Added RIPE MD160 (rmd160) message digest.
9389 *) Added -a (all) option to "ssleay version" command.
9392 *) Added PLATFORM define which is the id given to Configure.
9395 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9398 *) Extended the ASN.1 parser routines.
9401 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9404 *) Added a BN_CTX to the BN library.
9407 *) Fixed the weak key values in DES library
9410 *) Changed API in EVP library for cipher aliases.
9413 *) Added support for RC2/64bit cipher.
9416 *) Converted the lhash library to the crypto/mem.c functions.
9419 *) Added more recognized ASN.1 object ids.
9422 *) Added more RSA padding checks for SSL/TLS.
9425 *) Added BIO proxy/filter functionality.
9428 *) Added extra_certs to SSL_CTX which can be used
9429 send extra CA certificates to the client in the CA cert chain sending
9430 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9433 *) Now Fortezza is denied in the authentication phase because
9434 this is key exchange mechanism is not supported by SSLeay at all.
9437 *) Additional PKCS1 checks.
9440 *) Support the string "TLSv1" for all TLS v1 ciphers.
9443 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9444 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9447 *) Fixed a few memory leaks.
9450 *) Fixed various code and comment typos.
9453 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9454 bytes sent in the client random.
9455 [Edward Bishop <ebishop@spyglass.com>]