5 Changes between 1.0.0d and 1.0.0e [xx XXX xxxx]
7 *) Fix x509_name_ex_d2i memory leak on bad inputs.
10 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
11 signature public key algorithm by using OID xref utilities instead.
12 Before this you could only use some ECC ciphersuites with SHA1 only.
15 *) Add protection against ECDSA timing attacks as mentioned in the paper
16 by Billy Bob Brumley and Nicola Tuveri, see:
18 http://eprint.iacr.org/2011/232.pdf
20 [Billy Bob Brumley and Nicola Tuveri]
22 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
24 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
25 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
27 *) Fix bug in string printing code: if *any* escaping is enabled we must
28 escape the escape character (backslash) or the resulting string is
32 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
34 *) Disable code workaround for ancient and obsolete Netscape browsers
35 and servers: an attacker can use it in a ciphersuite downgrade attack.
36 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
39 *) Fixed J-PAKE implementation error, originally discovered by
40 Sebastien Martini, further info and confirmation from Stefan
41 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
44 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
46 *) Fix extension code to avoid race conditions which can result in a buffer
47 overrun vulnerability: resumed sessions must not be modified as they can
48 be shared by multiple threads. CVE-2010-3864
51 *) Fix WIN32 build system to correctly link an ENGINE directory into
55 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
57 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
59 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
61 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
63 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
64 context. The operation can be customised via the ctrl mechanism in
65 case ENGINEs want to include additional functionality.
68 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
71 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
72 output hashes compatible with older versions of OpenSSL.
73 [Willy Weisz <weisz@vcpc.univie.ac.at>]
75 *) Fix compression algorithm handling: if resuming a session use the
76 compression algorithm of the resumed session instead of determining
77 it from client hello again. Don't allow server to change algorithm.
80 *) Add load_crls() function to apps tidying load_certs() too. Add option
81 to verify utility to allow additional CRLs to be included.
84 *) Update OCSP request code to permit adding custom headers to the request:
85 some responders need this.
88 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
90 [Julia Lawall <julia@diku.dk>]
92 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
93 needlessly dereferenced structures, used obsolete functions and
94 didn't handle all updated verify codes correctly.
97 *) Disable MD2 in the default configuration.
100 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
101 indicate the initial BIO being pushed or popped. This makes it possible
102 to determine whether the BIO is the one explicitly called or as a result
103 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
104 it handles reference counts correctly and doesn't zero out the I/O bio
105 when it is not being explicitly popped. WARNING: applications which
106 included workarounds for the old buggy behaviour will need to be modified
107 or they could free up already freed BIOs.
110 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
111 renaming to all platforms (within the 0.9.8 branch, this was
112 done conditionally on Netware platforms to avoid a name clash).
113 [Guenter <lists@gknw.net>]
115 *) Add ECDHE and PSK support to DTLS.
116 [Michael Tuexen <tuexen@fh-muenster.de>]
118 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
122 *) Add "missing" function EVP_MD_flags() (without this the only way to
123 retrieve a digest flags is by accessing the structure directly. Update
124 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
125 or cipher is registered as in the "from" argument. Print out all
126 registered digests in the dgst usage message instead of manually
127 attempting to work them out.
130 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
131 this allows the use of compression and extensions. Change default cipher
132 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
133 by default unless an application cipher string requests it.
136 *) Alter match criteria in PKCS12_parse(). It used to try to use local
137 key ids to find matching certificates and keys but some PKCS#12 files
138 don't follow the (somewhat unwritten) rules and this strategy fails.
139 Now just gather all certificates together and the first private key
140 then look for the first certificate that matches the key.
143 *) Support use of registered digest and cipher names for dgst and cipher
144 commands instead of having to add each one as a special case. So now
151 openssl dgst -sha256 foo
153 and this works for ENGINE based algorithms too.
157 *) Update Gost ENGINE to support parameter files.
158 [Victor B. Wagner <vitus@cryptocom.ru>]
160 *) Support GeneralizedTime in ca utility.
161 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
163 *) Enhance the hash format used for certificate directory links. The new
164 form uses the canonical encoding (meaning equivalent names will work
165 even if they aren't identical) and uses SHA1 instead of MD5. This form
166 is incompatible with the older format and as a result c_rehash should
167 be used to rebuild symbolic links.
170 *) Make PKCS#8 the default write format for private keys, replacing the
171 traditional format. This form is standardised, more secure and doesn't
172 include an implicit MD5 dependency.
175 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
176 committed to OpenSSL should pass this lot as a minimum.
179 *) Add session ticket override functionality for use by EAP-FAST.
180 [Jouni Malinen <j@w1.fi>]
182 *) Modify HMAC functions to return a value. Since these can be implemented
183 in an ENGINE errors can occur.
186 *) Type-checked OBJ_bsearch_ex.
189 *) Type-checked OBJ_bsearch. Also some constification necessitated
190 by type-checking. Still to come: TXT_DB, bsearch(?),
191 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
195 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
196 seconds to a tm structure directly, instead of going through OS
197 specific date routines. This avoids any issues with OS routines such
198 as the year 2038 bug. New *_adj() functions for ASN1 time structures
199 and X509_time_adj_ex() to cover the extended range. The existing
200 X509_time_adj() is still usable and will no longer have any date issues.
203 *) Delta CRL support. New use deltas option which will attempt to locate
204 and search any appropriate delta CRLs available.
206 This work was sponsored by Google.
209 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
210 code and add additional score elements. Validate alternate CRL paths
211 as part of the CRL checking and indicate a new error "CRL path validation
212 error" in this case. Applications wanting additional details can use
213 the verify callback and check the new "parent" field. If this is not
214 NULL CRL path validation is taking place. Existing applications wont
215 see this because it requires extended CRL support which is off by
218 This work was sponsored by Google.
221 *) Support for freshest CRL extension.
223 This work was sponsored by Google.
226 *) Initial indirect CRL support. Currently only supported in the CRLs
227 passed directly and not via lookup. Process certificate issuer
228 CRL entry extension and lookup CRL entries by bother issuer name
229 and serial number. Check and process CRL issuer entry in IDP extension.
231 This work was sponsored by Google.
234 *) Add support for distinct certificate and CRL paths. The CRL issuer
235 certificate is validated separately in this case. Only enabled if
236 an extended CRL support flag is set: this flag will enable additional
237 CRL functionality in future.
239 This work was sponsored by Google.
242 *) Add support for policy mappings extension.
244 This work was sponsored by Google.
247 *) Fixes to pathlength constraint, self issued certificate handling,
248 policy processing to align with RFC3280 and PKITS tests.
250 This work was sponsored by Google.
253 *) Support for name constraints certificate extension. DN, email, DNS
254 and URI types are currently supported.
256 This work was sponsored by Google.
259 *) To cater for systems that provide a pointer-based thread ID rather
260 than numeric, deprecate the current numeric thread ID mechanism and
261 replace it with a structure and associated callback type. This
262 mechanism allows a numeric "hash" to be extracted from a thread ID in
263 either case, and on platforms where pointers are larger than 'long',
264 mixing is done to help ensure the numeric 'hash' is usable even if it
265 can't be guaranteed unique. The default mechanism is to use "&errno"
266 as a pointer-based thread ID to distinguish between threads.
268 Applications that want to provide their own thread IDs should now use
269 CRYPTO_THREADID_set_callback() to register a callback that will call
270 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
272 Note that ERR_remove_state() is now deprecated, because it is tied
273 to the assumption that thread IDs are numeric. ERR_remove_state(0)
274 to free the current thread's error state should be replaced by
275 ERR_remove_thread_state(NULL).
277 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
278 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
279 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
280 application was previously providing a numeric thread callback that
281 was inappropriate for distinguishing threads, then uniqueness might
282 have been obtained with &errno that happened immediately in the
283 intermediate development versions of OpenSSL; this is no longer the
284 case, the numeric thread callback will now override the automatic use
286 [Geoff Thorpe, with help from Bodo Moeller]
288 *) Initial support for different CRL issuing certificates. This covers a
289 simple case where the self issued certificates in the chain exist and
290 the real CRL issuer is higher in the existing chain.
292 This work was sponsored by Google.
295 *) Removed effectively defunct crypto/store from the build.
298 *) Revamp of STACK to provide stronger type-checking. Still to come:
299 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
300 ASN1_STRING, CONF_VALUE.
303 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
304 RAM on SSL connections. This option can save about 34k per idle SSL.
307 *) Revamp of LHASH to provide stronger type-checking. Still to come:
308 STACK, TXT_DB, bsearch, qsort.
311 *) Initial support for Cryptographic Message Syntax (aka CMS) based
312 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
313 support for data, signedData, compressedData, digestedData and
314 encryptedData, envelopedData types included. Scripts to check against
315 RFC4134 examples draft and interop and consistency checks of many
316 content types and variants.
319 *) Add options to enc utility to support use of zlib compression BIO.
322 *) Extend mk1mf to support importing of options and assembly language
323 files from Configure script, currently only included in VC-WIN32.
324 The assembly language rules can now optionally generate the source
325 files from the associated perl scripts.
328 *) Implement remaining functionality needed to support GOST ciphersuites.
329 Interop testing has been performed using CryptoPro implementations.
330 [Victor B. Wagner <vitus@cryptocom.ru>]
332 *) s390x assembler pack.
335 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
339 *) Implement Opaque PRF Input TLS extension as specified in
340 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
341 official specification yet and no extension type assignment by
342 IANA exists, this extension (for now) will have to be explicitly
343 enabled when building OpenSSL by providing the extension number
344 to use. For example, specify an option
346 -DTLSEXT_TYPE_opaque_prf_input=0x9527
348 to the "config" or "Configure" script to enable the extension,
349 assuming extension number 0x9527 (which is a completely arbitrary
350 and unofficial assignment based on the MD5 hash of the Internet
351 Draft). Note that by doing so, you potentially lose
352 interoperability with other TLS implementations since these might
353 be using the same extension number for other purposes.
355 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
356 opaque PRF input value to use in the handshake. This will create
357 an interal copy of the length-'len' string at 'src', and will
358 return non-zero for success.
360 To get more control and flexibility, provide a callback function
363 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
364 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
368 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
371 Callback function 'cb' will be called in handshakes, and is
372 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
373 Argument 'arg' is for application purposes (the value as given to
374 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
375 be provided to the callback function). The callback function
376 has to return non-zero to report success: usually 1 to use opaque
377 PRF input just if possible, or 2 to enforce use of the opaque PRF
378 input. In the latter case, the library will abort the handshake
379 if opaque PRF input is not successfully negotiated.
381 Arguments 'peerinput' and 'len' given to the callback function
382 will always be NULL and 0 in the case of a client. A server will
383 see the client's opaque PRF input through these variables if
384 available (NULL and 0 otherwise). Note that if the server
385 provides an opaque PRF input, the length must be the same as the
386 length of the client's opaque PRF input.
388 Note that the callback function will only be called when creating
389 a new session (session resumption can resume whatever was
390 previously negotiated), and will not be called in SSL 2.0
391 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
392 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
393 for applications that need to enforce opaque PRF input.
397 *) Update ssl code to support digests other than SHA1+MD5 for handshake
400 [Victor B. Wagner <vitus@cryptocom.ru>]
402 *) Add RFC4507 support to OpenSSL. This includes the corrections in
403 RFC4507bis. The encrypted ticket format is an encrypted encoded
404 SSL_SESSION structure, that way new session features are automatically
407 If a client application caches session in an SSL_SESSION structure
408 support is transparent because tickets are now stored in the encoded
411 The SSL_CTX structure automatically generates keys for ticket
412 protection in servers so again support should be possible
413 with no application modification.
415 If a client or server wishes to disable RFC4507 support then the option
416 SSL_OP_NO_TICKET can be set.
418 Add a TLS extension debugging callback to allow the contents of any client
419 or server extensions to be examined.
421 This work was sponsored by Google.
424 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
425 OpenSSL should now compile cleanly on gcc 4.2
426 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
428 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
429 support including streaming MAC support: this is required for GOST
431 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
433 *) Add option -stream to use PKCS#7 streaming in smime utility. New
434 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
435 to output in BER and PEM format.
438 *) Experimental support for use of HMAC via EVP_PKEY interface. This
439 allows HMAC to be handled via the EVP_DigestSign*() interface. The
440 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
441 ENGINE support for HMAC keys which are unextractable. New -mac and
442 -macopt options to dgst utility.
445 *) New option -sigopt to dgst utility. Update dgst to use
446 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
447 alternative signing paramaters such as X9.31 or PSS in the dgst
451 *) Change ssl_cipher_apply_rule(), the internal function that does
452 the work each time a ciphersuite string requests enabling
453 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
454 removing ("!foo+bar") a class of ciphersuites: Now it maintains
455 the order of disabled ciphersuites such that those ciphersuites
456 that most recently went from enabled to disabled not only stay
457 in order with respect to each other, but also have higher priority
458 than other disabled ciphersuites the next time ciphersuites are
461 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
462 the same ciphersuites as with "HIGH" alone, but in a specific
463 order where the PSK ciphersuites come first (since they are the
464 most recently disabled ciphersuites when "HIGH" is parsed).
466 Also, change ssl_create_cipher_list() (using this new
467 funcionality) such that between otherwise identical
468 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
472 *) Change ssl_create_cipher_list() so that it automatically
473 arranges the ciphersuites in reasonable order before starting
474 to process the rule string. Thus, the definition for "DEFAULT"
475 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
476 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
477 This makes it much easier to arrive at a reasonable default order
478 in applications for which anonymous ciphers are OK (meaning
479 that you can't actually use DEFAULT).
480 [Bodo Moeller; suggested by Victor Duchovni]
482 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
483 processing) into multiple integers instead of setting
484 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
485 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
486 (These masks as well as the individual bit definitions are hidden
487 away into the non-exported interface ssl/ssl_locl.h, so this
488 change to the definition of the SSL_CIPHER structure shouldn't
489 affect applications.) This give us more bits for each of these
490 categories, so there is no longer a need to coagulate AES128 and
491 AES256 into a single algorithm bit, and to coagulate Camellia128
492 and Camellia256 into a single algorithm bit, which has led to all
495 Thus, among other things, the kludge introduced in 0.9.7m and
496 0.9.8e for masking out AES256 independently of AES128 or masking
497 out Camellia256 independently of AES256 is not needed here in 0.9.9.
499 With the change, we also introduce new ciphersuite aliases that
500 so far were missing: "AES128", "AES256", "CAMELLIA128", and
504 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
505 Use the leftmost N bytes of the signature input if the input is
506 larger than the prime q (with N being the size in bytes of q).
509 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
510 it yet and it is largely untested.
513 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
516 *) Initial incomplete changes to avoid need for function casts in OpenSSL
517 some compilers (gcc 4.2 and later) reject their use. Safestack is
518 reimplemented. Update ASN1 to avoid use of legacy functions.
521 *) Win32/64 targets are linked with Winsock2.
524 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
525 to external functions. This can be used to increase CRL handling
526 efficiency especially when CRLs are very large by (for example) storing
527 the CRL revoked certificates in a database.
530 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
531 new CRLs added to a directory can be used. New command line option
532 -verify_return_error to s_client and s_server. This causes real errors
533 to be returned by the verify callback instead of carrying on no matter
534 what. This reflects the way a "real world" verify callback would behave.
537 *) GOST engine, supporting several GOST algorithms and public key formats.
538 Kindly donated by Cryptocom.
541 *) Partial support for Issuing Distribution Point CRL extension. CRLs
542 partitioned by DP are handled but no indirect CRL or reason partitioning
543 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
544 selected via a scoring technique which handles IDP and AKID in CRLs.
547 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
548 will ultimately be used for all verify operations: this will remove the
549 X509_STORE dependency on certificate verification and allow alternative
550 lookup methods. X509_STORE based implementations of these two callbacks.
553 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
554 Modify get_crl() to find a valid (unexpired) CRL if possible.
557 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
558 this would be called X509_CRL_cmp() but that name is already used by
559 a function that just compares CRL issuer names. Cache several CRL
560 extensions in X509_CRL structure and cache CRLDP in X509.
563 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
564 this maps equivalent X509_NAME structures into a consistent structure.
565 Name comparison can then be performed rapidly using memcmp().
568 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
572 *) Allow digests to supply their own micalg string for S/MIME type using
573 the ctrl EVP_MD_CTRL_MICALG.
576 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
577 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
578 ctrl. It can then customise the structure before and/or after signing
582 *) New function OBJ_add_sigid() to allow application defined signature OIDs
583 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
584 to free up any added signature OIDs.
587 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
588 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
589 digest and cipher tables. New options added to openssl utility:
590 list-message-digest-algorithms and list-cipher-algorithms.
593 *) Change the array representation of binary polynomials: the list
594 of degrees of non-zero coefficients is now terminated with -1.
595 Previously it was terminated with 0, which was also part of the
596 value; thus, the array representation was not applicable to
597 polynomials where t^0 has coefficient zero. This change makes
598 the array representation useful in a more general context.
601 *) Various modifications and fixes to SSL/TLS cipher string
602 handling. For ECC, the code now distinguishes between fixed ECDH
603 with RSA certificates on the one hand and with ECDSA certificates
604 on the other hand, since these are separate ciphersuites. The
605 unused code for Fortezza ciphersuites has been removed.
607 For consistency with EDH, ephemeral ECDH is now called "EECDH"
608 (not "ECDHE"). For consistency with the code for DH
609 certificates, use of ECDH certificates is now considered ECDH
610 authentication, not RSA or ECDSA authentication (the latter is
611 merely the CA's signing algorithm and not actively used in the
614 The temporary ciphersuite alias "ECCdraft" is no longer
615 available, and ECC ciphersuites are no longer excluded from "ALL"
616 and "DEFAULT". The following aliases now exist for RFC 4492
617 ciphersuites, most of these by analogy with the DH case:
619 kECDHr - ECDH cert, signed with RSA
620 kECDHe - ECDH cert, signed with ECDSA
621 kECDH - ECDH cert (signed with either RSA or ECDSA)
622 kEECDH - ephemeral ECDH
623 ECDH - ECDH cert or ephemeral ECDH
629 AECDH - anonymous ECDH
630 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
634 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
635 Use correct micalg parameters depending on digest(s) in signed message.
638 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
639 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
642 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
643 an engine to register a method. Add ENGINE lookups for methods and
644 functional reference processing.
647 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
648 EVP_{Sign,Verify}* which allow an application to customise the signature
652 *) New -resign option to smime utility. This adds one or more signers
653 to an existing PKCS#7 signedData structure. Also -md option to use an
654 alternative message digest algorithm for signing.
657 *) Tidy up PKCS#7 routines and add new functions to make it easier to
658 create PKCS7 structures containing multiple signers. Update smime
659 application to support multiple signers.
662 *) New -macalg option to pkcs12 utility to allow setting of an alternative
666 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
667 Reorganize PBE internals to lookup from a static table using NIDs,
668 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
669 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
670 PRF which will be automatically used with PBES2.
673 *) Replace the algorithm specific calls to generate keys in "req" with the
677 *) Update PKCS#7 enveloped data routines to use new API. This is now
678 supported by any public key method supporting the encrypt operation. A
679 ctrl is added to allow the public key algorithm to examine or modify
680 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
684 *) Add a ctrl to asn1 method to allow a public key algorithm to express
685 a default digest type to use. In most cases this will be SHA1 but some
686 algorithms (such as GOST) need to specify an alternative digest. The
687 return value indicates how strong the prefernce is 1 means optional and
688 2 is mandatory (that is it is the only supported type). Modify
689 ASN1_item_sign() to accept a NULL digest argument to indicate it should
690 use the default md. Update openssl utilities to use the default digest
691 type for signing if it is not explicitly indicated.
694 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
695 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
696 signing method from the key type. This effectively removes the link
697 between digests and public key types.
700 *) Add an OID cross reference table and utility functions. Its purpose is to
701 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
702 rsaEncryption. This will allow some of the algorithm specific hackery
703 needed to use the correct OID to be removed.
706 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
707 structures for PKCS7_sign(). They are now set up by the relevant public
711 *) Add provisional EC pkey method with support for ECDSA and ECDH.
714 *) Add support for key derivation (agreement) in the API, DH method and
718 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
719 public and private key formats. As a side effect these add additional
720 command line functionality not previously available: DSA signatures can be
721 generated and verified using pkeyutl and DH key support and generation in
726 [Oliver Tappe <zooey@hirschkaefer.de>]
728 *) New make target "install_html_docs" installs HTML renditions of the
730 [Oliver Tappe <zooey@hirschkaefer.de>]
732 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
733 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
734 support key and parameter generation and add initial key generation
735 functionality for RSA.
738 *) Add functions for main EVP_PKEY_method operations. The undocumented
739 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
740 EVP_PKEY_{encrypt,decrypt}_old.
743 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
744 key API, doesn't do much yet.
747 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
748 public key algorithms. New option to openssl utility:
749 "list-public-key-algorithms" to print out info.
752 *) Implement the Supported Elliptic Curves Extension for
753 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
756 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
757 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
760 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
761 utilities such as rsa, dsa, dsaparam etc except they process any key
765 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
766 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
767 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
771 *) Initial support for pluggable public key ASN1.
772 De-spaghettify the public key ASN1 handling. Move public and private
773 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
774 algorithm specific handling to a single module within the relevant
775 algorithm directory. Add functions to allow (near) opaque processing
776 of public and private key structures.
779 *) Implement the Supported Point Formats Extension for
780 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
783 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
784 for the psk identity [hint] and the psk callback functions to the
785 SSL_SESSION, SSL and SSL_CTX structure.
788 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
792 SSL_CTX_use_psk_identity_hint
793 SSL_get_psk_identity_hint
795 SSL_use_psk_identity_hint
797 [Mika Kousa and Pasi Eronen of Nokia Corporation]
799 *) Add RFC 3161 compliant time stamp request creation, response generation
800 and response verification functionality.
801 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
803 *) Add initial support for TLS extensions, specifically for the server_name
804 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
805 have new members for a host name. The SSL data structure has an
806 additional member SSL_CTX *initial_ctx so that new sessions can be
807 stored in that context to allow for session resumption, even after the
808 SSL has been switched to a new SSL_CTX in reaction to a client's
809 server_name extension.
811 New functions (subject to change):
814 SSL_get_servername_type()
817 New CTRL codes and macros (subject to change):
819 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
820 - SSL_CTX_set_tlsext_servername_callback()
821 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
822 - SSL_CTX_set_tlsext_servername_arg()
823 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
825 openssl s_client has a new '-servername ...' option.
827 openssl s_server has new options '-servername_host ...', '-cert2 ...',
828 '-key2 ...', '-servername_fatal' (subject to change). This allows
829 testing the HostName extension for a specific single host name ('-cert'
830 and '-key' remain fallbacks for handshakes without HostName
831 negotiation). If the unrecogninzed_name alert has to be sent, this by
832 default is a warning; it becomes fatal with the '-servername_fatal'
835 [Peter Sylvester, Remy Allais, Christophe Renou]
837 *) Whirlpool hash implementation is added.
840 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
841 bn(64,32). Because of instruction set limitations it doesn't have
842 any negative impact on performance. This was done mostly in order
843 to make it possible to share assembler modules, such as bn_mul_mont
844 implementations, between 32- and 64-bit builds without hassle.
847 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
848 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
852 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
853 dedicated Montgomery multiplication procedure, is introduced.
854 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
855 "64-bit" performance on certain 32-bit targets.
858 *) New option SSL_OP_NO_COMP to disable use of compression selectively
859 in SSL structures. New SSL ctrl to set maximum send fragment size.
860 Save memory by seeting the I/O buffer sizes dynamically instead of
861 using the maximum available value.
864 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
865 in addition to the text details.
868 *) Very, very preliminary EXPERIMENTAL support for printing of general
869 ASN1 structures. This currently produces rather ugly output and doesn't
870 handle several customised structures at all.
873 *) Integrated support for PVK file format and some related formats such
874 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
875 these in the 'rsa' and 'dsa' utilities.
878 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
881 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
882 place for the (very old) "NETSCAPE" format certificates which are now
883 handled using new ASN1 code equivalents.
886 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
887 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
888 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
891 *) Modify CRL distribution points extension code to print out previously
892 unsupported fields. Enhance extension setting code to allow setting of
896 *) Add print and set support for Issuing Distribution Point CRL extension.
899 *) Change 'Configure' script to enable Camellia by default.
902 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
904 *) Fix x509_name_ex_d2i memory leak on bad inputs.
907 *) Add protection against ECDSA timing attacks as mentioned in the paper
908 by Billy Bob Brumley and Nicola Tuveri, see:
910 http://eprint.iacr.org/2011/232.pdf
912 [Billy Bob Brumley and Nicola Tuveri]
914 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
916 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
917 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
919 *) Fix bug in string printing code: if *any* escaping is enabled we must
920 escape the escape character (backslash) or the resulting string is
924 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
926 *) Disable code workaround for ancient and obsolete Netscape browsers
927 and servers: an attacker can use it in a ciphersuite downgrade attack.
928 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
931 *) Fixed J-PAKE implementation error, originally discovered by
932 Sebastien Martini, further info and confirmation from Stefan
933 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
936 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
938 *) Fix extension code to avoid race conditions which can result in a buffer
939 overrun vulnerability: resumed sessions must not be modified as they can
940 be shared by multiple threads. CVE-2010-3864
943 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
946 *) Don't reencode certificate when calculating signature: cache and use
947 the original encoding instead. This makes signature verification of
948 some broken encodings work correctly.
951 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
952 is also one of the inputs.
953 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
955 *) Don't repeatedly append PBE algorithms to table if they already exist.
956 Sort table on each new add. This effectively makes the table read only
957 after all algorithms are added and subsequent calls to PKCS12_pbe_add
961 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
963 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
966 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
967 access or freeing data twice (CVE-2010-0742)
968 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
970 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
971 common in certificates and some applications which only call
972 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
976 Reduce copying into .apps and .test in makevms.com
977 Don't try to use blank CA certificate in CA.com
978 Allow use of C files from original directories in maketests.com
979 [Steven M. Schweda" <sms@antinode.info>]
981 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
983 *) When rejecting SSL/TLS records due to an incorrect version number, never
984 update s->server with a new major version number. As of
985 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
986 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
987 the previous behavior could result in a read attempt at NULL when
988 receiving specific incorrect SSL/TLS records once record payload
989 protection is active. (CVE-2010-0740)
990 [Bodo Moeller, Adam Langley <agl@chromium.org>]
992 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
993 could be crashed if the relevant tables were not present (e.g. chrooted).
994 [Tomas Hoger <thoger@redhat.com>]
996 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
998 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
999 [Martin Olsson, Neel Mehta]
1001 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1002 accommodate for stack sorting, always a write lock!).
1005 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1006 excessive delays in the RAND_poll(): over a minute. As a workaround
1007 include a time check in the inner Heap32Next loop too.
1010 *) The code that handled flushing of data in SSL/TLS originally used the
1011 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1012 the problem outlined in PR#1949. The fix suggested there however can
1013 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1014 of Apache). So instead simplify the code to flush unconditionally.
1015 This should be fine since flushing with no data to flush is a no op.
1018 *) Handle TLS versions 2.0 and later properly and correctly use the
1019 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1020 off ancient servers have a habit of sticking around for a while...
1023 *) Modify compression code so it frees up structures without using the
1024 ex_data callbacks. This works around a problem where some applications
1025 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1026 restarting) then use compression (e.g. SSL with compression) later.
1027 This results in significant per-connection memory leaks and
1028 has caused some security issues including CVE-2008-1678 and
1032 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1033 change when encrypting or decrypting.
1036 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1037 connect and renegotiate with servers which do not support RI.
1038 Until RI is more widely deployed this option is enabled by default.
1041 *) Add "missing" ssl ctrls to clear options and mode.
1044 *) If client attempts to renegotiate and doesn't support RI respond with
1045 a no_renegotiation alert as required by RFC5746. Some renegotiating
1046 TLS clients will continue a connection gracefully when they receive
1047 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1048 waiting for a server hello which it will never receive. Now we treat a
1049 received no_renegotiation alert as a fatal error. This is because
1050 applications requesting a renegotiation might well expect it to succeed
1051 and would have no code in place to handle the server denying it so the
1052 only safe thing to do is to terminate the connection.
1055 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1056 peer supports secure renegotiation and 0 otherwise. Print out peer
1057 renegotiation support in s_client/s_server.
1060 *) Replace the highly broken and deprecated SPKAC certification method with
1061 the updated NID creation version. This should correctly handle UTF8.
1064 *) Implement RFC5746. Re-enable renegotiation but require the extension
1065 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1066 turns out to be a bad idea. It has been replaced by
1067 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1068 SSL_CTX_set_options(). This is really not recommended unless you
1069 know what you are doing.
1070 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1072 *) Fixes to stateless session resumption handling. Use initial_ctx when
1073 issuing and attempting to decrypt tickets in case it has changed during
1074 servername handling. Use a non-zero length session ID when attempting
1075 stateless session resumption: this makes it possible to determine if
1076 a resumption has occurred immediately after receiving server hello
1077 (several places in OpenSSL subtly assume this) instead of later in
1081 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1082 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1083 fixes for a few places where the return code is not checked
1085 [Julia Lawall <julia@diku.dk>]
1087 *) Add --strict-warnings option to Configure script to include devteam
1088 warnings in other configurations.
1091 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1092 makes it possible to install openssl libraries in locations which
1093 have names other than "lib", for example "/usr/lib64" which some
1095 [Steve Henson, based on patch from Jeremy Utley]
1097 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1098 X690 8.9.12 and can produce some misleading textual output of OIDs.
1099 [Steve Henson, reported by Dan Kaminsky]
1101 *) Delete MD2 from algorithm tables. This follows the recommendation in
1102 several standards that it is not used in new applications due to
1103 several cryptographic weaknesses. For binary compatibility reasons
1104 the MD2 API is still compiled in by default.
1107 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1111 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1112 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1114 [Guenter <lists@gknw.net>]
1116 *) Fix the server certificate chain building code to use X509_verify_cert(),
1117 it used to have an ad-hoc builder which was unable to cope with anything
1118 other than a simple chain.
1119 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1121 *) Don't check self signed certificate signatures in X509_verify_cert()
1122 by default (a flag can override this): it just wastes time without
1123 adding any security. As a useful side effect self signed root CAs
1124 with non-FIPS digests are now usable in FIPS mode.
1127 *) In dtls1_process_out_of_seq_message() the check if the current message
1128 is already buffered was missing. For every new message was memory
1129 allocated, allowing an attacker to perform an denial of service attack
1130 with sending out of seq handshake messages until there is no memory
1131 left. Additionally every future messege was buffered, even if the
1132 sequence number made no sense and would be part of another handshake.
1133 So only messages with sequence numbers less than 10 in advance will be
1134 buffered. (CVE-2009-1378)
1135 [Robin Seggelmann, discovered by Daniel Mentz]
1137 *) Records are buffered if they arrive with a future epoch to be
1138 processed after finishing the corresponding handshake. There is
1139 currently no limitation to this buffer allowing an attacker to perform
1140 a DOS attack with sending records with future epochs until there is no
1141 memory left. This patch adds the pqueue_size() function to detemine
1142 the size of a buffer and limits the record buffer to 100 entries.
1144 [Robin Seggelmann, discovered by Daniel Mentz]
1146 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1147 parent structure is freed. (CVE-2009-1379)
1150 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1151 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1154 [Ilya O. <vrghost@gmail.com>]
1156 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1158 *) Disable renegotiation completely - this fixes a severe security
1159 problem (CVE-2009-3555) at the cost of breaking all
1160 renegotiation. Renegotiation can be re-enabled by setting
1161 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1162 run-time. This is really not recommended unless you know what
1166 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1168 *) Don't set val to NULL when freeing up structures, it is freed up by
1169 underlying code. If sizeof(void *) > sizeof(long) this can result in
1170 zeroing past the valid field. (CVE-2009-0789)
1171 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1173 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1174 checked correctly. This would allow some invalid signed attributes to
1175 appear to verify correctly. (CVE-2009-0591)
1176 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1178 *) Reject UniversalString and BMPString types with invalid lengths. This
1179 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1180 a legal length. (CVE-2009-0590)
1183 *) Set S/MIME signing as the default purpose rather than setting it
1184 unconditionally. This allows applications to override it at the store
1188 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1189 to handle some structures.
1192 *) Improve efficiency of mem_gets: don't search whole buffer each time
1194 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1196 *) New -hex option for openssl rand.
1199 *) Print out UTF8String and NumericString when parsing ASN1.
1202 *) Support NumericString type for name components.
1205 *) Allow CC in the environment to override the automatically chosen
1206 compiler. Note that nothing is done to ensure flags work with the
1210 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1212 *) Properly check EVP_VerifyFinal() and similar return values
1214 [Ben Laurie, Bodo Moeller, Google Security Team]
1216 *) Enable TLS extensions by default.
1219 *) Allow the CHIL engine to be loaded, whether the application is
1220 multithreaded or not. (This does not release the developer from the
1221 obligation to set up the dynamic locking callbacks.)
1222 [Sander Temme <sander@temme.net>]
1224 *) Use correct exit code if there is an error in dgst command.
1225 [Steve Henson; problem pointed out by Roland Dirlewanger]
1227 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1228 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1231 *) Add experimental JPAKE support, including demo authentication in
1232 s_client and s_server.
1235 *) Set the comparison function in v3_addr_canonize().
1236 [Rob Austein <sra@hactrn.net>]
1238 *) Add support for XMPP STARTTLS in s_client.
1239 [Philip Paeps <philip@freebsd.org>]
1241 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1242 to ensure that even with this option, only ciphersuites in the
1243 server's preference list will be accepted. (Note that the option
1244 applies only when resuming a session, so the earlier behavior was
1245 just about the algorithm choice for symmetric cryptography.)
1248 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1250 *) Fix NULL pointer dereference if a DTLS server received
1251 ChangeCipherSpec as first record (CVE-2009-1386).
1254 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1255 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1258 *) The fix in 0.9.8c that supposedly got rid of unsafe
1259 double-checked locking was incomplete for RSA blinding,
1260 addressing just one layer of what turns out to have been
1261 doubly unsafe triple-checked locking.
1263 So now fix this for real by retiring the MONT_HELPER macro
1264 in crypto/rsa/rsa_eay.c.
1266 [Bodo Moeller; problem pointed out by Marius Schilder]
1268 *) Various precautionary measures:
1270 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1272 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1273 (NB: This would require knowledge of the secret session ticket key
1274 to exploit, in which case you'd be SOL either way.)
1276 - Change bn_nist.c so that it will properly handle input BIGNUMs
1277 outside the expected range.
1279 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1282 [Neel Mehta, Bodo Moeller]
1284 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1285 the load fails. Useful for distros.
1286 [Ben Laurie and the FreeBSD team]
1288 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1291 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1294 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1296 This work was sponsored by Logica.
1299 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1300 keystores. Support for SSL/TLS client authentication too.
1301 Not compiled unless enable-capieng specified to Configure.
1303 This work was sponsored by Logica.
1306 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1307 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1308 attribute creation routines such as certifcate requests and PKCS#12
1312 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1314 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1315 handshake which could lead to a cilent crash as found using the
1316 Codenomicon TLS test suite (CVE-2008-1672)
1317 [Steve Henson, Mark Cox]
1319 *) Fix double free in TLS server name extensions which could lead to
1320 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1323 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1325 Clear the error queue to ensure that error entries left from
1326 older function calls do not interfere with the correct operation.
1327 [Lutz Jaenicke, Erik de Castro Lopo]
1329 *) Remove root CA certificates of commercial CAs:
1331 The OpenSSL project does not recommend any specific CA and does not
1332 have any policy with respect to including or excluding any CA.
1333 Therefore it does not make any sense to ship an arbitrary selection
1334 of root CA certificates with the OpenSSL software.
1337 *) RSA OAEP patches to fix two separate invalid memory reads.
1338 The first one involves inputs when 'lzero' is greater than
1339 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1340 before the beginning of from). The second one involves inputs where
1341 the 'db' section contains nothing but zeroes (there is a one-byte
1342 invalid read after the end of 'db').
1343 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1345 *) Partial backport from 0.9.9-dev:
1347 Introduce bn_mul_mont (dedicated Montgomery multiplication
1348 procedure) as a candidate for BIGNUM assembler implementation.
1349 While 0.9.9-dev uses assembler for various architectures, only
1350 x86_64 is available by default here in the 0.9.8 branch, and
1351 32-bit x86 is available through a compile-time setting.
1353 To try the 32-bit x86 assembler implementation, use Configure
1354 option "enable-montasm" (which exists only for this backport).
1356 As "enable-montasm" for 32-bit x86 disclaims code stability
1357 anyway, in this constellation we activate additional code
1358 backported from 0.9.9-dev for further performance improvements,
1359 namely BN_from_montgomery_word. (To enable this otherwise,
1360 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1362 [Andy Polyakov (backport partially by Bodo Moeller)]
1364 *) Add TLS session ticket callback. This allows an application to set
1365 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1366 values. This is useful for key rollover for example where several key
1367 sets may exist with different names.
1370 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1371 This was broken until now in 0.9.8 releases, such that the only way
1372 a registered ENGINE could be used (assuming it initialises
1373 successfully on the host) was to explicitly set it as the default
1374 for the relevant algorithms. This is in contradiction with 0.9.7
1375 behaviour and the documentation. With this fix, when an ENGINE is
1376 registered into a given algorithm's table of implementations, the
1377 'uptodate' flag is reset so that auto-discovery will be used next
1378 time a new context for that algorithm attempts to select an
1380 [Ian Lister (tweaked by Geoff Thorpe)]
1382 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1383 implemention in the following ways:
1385 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1388 Lack of BER streaming support means one pass streaming processing is
1389 only supported if data is detached: setting the streaming flag is
1390 ignored for embedded content.
1392 CMS support is disabled by default and must be explicitly enabled
1393 with the enable-cms configuration option.
1396 *) Update the GMP engine glue to do direct copies between BIGNUM and
1397 mpz_t when openssl and GMP use the same limb size. Otherwise the
1398 existing "conversion via a text string export" trick is still used.
1399 [Paul Sheer <paulsheer@gmail.com>]
1401 *) Zlib compression BIO. This is a filter BIO which compressed and
1402 uncompresses any data passed through it.
1405 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1406 RFC3394 compatible AES key wrapping.
1409 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1410 sets string data without copying. X509_ALGOR_set0() and
1411 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1412 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1413 from an X509_ATTRIBUTE structure optionally checking it occurs only
1414 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1418 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1419 to get the expected BN_FLG_CONSTTIME behavior.
1420 [Bodo Moeller (Google)]
1424 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1425 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1426 - added some more tests to do_tests.pl
1427 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1428 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1429 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1430 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1431 - various changes to netware.pl to enable gcc-cross builds on Win32
1433 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1434 - various changes to fix missing prototype warnings
1435 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1436 - added AES, WHIRLPOOL and CPUID assembler code to build files
1437 - added missing AES assembler make rules to mk1mf.pl
1438 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1439 [Guenter Knauf <eflash@gmx.net>]
1441 *) Implement certificate status request TLS extension defined in RFC3546.
1442 A client can set the appropriate parameters and receive the encoded
1443 OCSP response via a callback. A server can query the supplied parameters
1444 and set the encoded OCSP response in the callback. Add simplified examples
1445 to s_client and s_server.
1448 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1450 *) Fix various bugs:
1451 + Binary incompatibility of ssl_ctx_st structure
1452 + DTLS interoperation with non-compliant servers
1453 + Don't call get_session_cb() without proposed session
1454 + Fix ia64 assembler code
1455 [Andy Polyakov, Steve Henson]
1457 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1459 *) DTLS Handshake overhaul. There were longstanding issues with
1460 OpenSSL DTLS implementation, which were making it impossible for
1461 RFC 4347 compliant client to communicate with OpenSSL server.
1462 Unfortunately just fixing these incompatibilities would "cut off"
1463 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1464 server keeps tolerating non RFC compliant syntax. The opposite is
1465 not true, 0.9.8f client can not communicate with earlier server.
1466 This update even addresses CVE-2007-4995.
1469 *) Changes to avoid need for function casts in OpenSSL: some compilers
1470 (gcc 4.2 and later) reject their use.
1471 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1474 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1475 RFC4507bis. The encrypted ticket format is an encrypted encoded
1476 SSL_SESSION structure, that way new session features are automatically
1479 If a client application caches session in an SSL_SESSION structure
1480 support is transparent because tickets are now stored in the encoded
1483 The SSL_CTX structure automatically generates keys for ticket
1484 protection in servers so again support should be possible
1485 with no application modification.
1487 If a client or server wishes to disable RFC4507 support then the option
1488 SSL_OP_NO_TICKET can be set.
1490 Add a TLS extension debugging callback to allow the contents of any client
1491 or server extensions to be examined.
1493 This work was sponsored by Google.
1496 *) Add initial support for TLS extensions, specifically for the server_name
1497 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1498 have new members for a host name. The SSL data structure has an
1499 additional member SSL_CTX *initial_ctx so that new sessions can be
1500 stored in that context to allow for session resumption, even after the
1501 SSL has been switched to a new SSL_CTX in reaction to a client's
1502 server_name extension.
1504 New functions (subject to change):
1506 SSL_get_servername()
1507 SSL_get_servername_type()
1510 New CTRL codes and macros (subject to change):
1512 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1513 - SSL_CTX_set_tlsext_servername_callback()
1514 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1515 - SSL_CTX_set_tlsext_servername_arg()
1516 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1518 openssl s_client has a new '-servername ...' option.
1520 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1521 '-key2 ...', '-servername_fatal' (subject to change). This allows
1522 testing the HostName extension for a specific single host name ('-cert'
1523 and '-key' remain fallbacks for handshakes without HostName
1524 negotiation). If the unrecogninzed_name alert has to be sent, this by
1525 default is a warning; it becomes fatal with the '-servername_fatal'
1528 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1530 *) Add AES and SSE2 assembly language support to VC++ build.
1533 *) Mitigate attack on final subtraction in Montgomery reduction.
1536 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1537 (which previously caused an internal error).
1540 *) Squeeze another 10% out of IGE mode when in != out.
1543 *) AES IGE mode speedup.
1544 [Dean Gaudet (Google)]
1546 *) Add the Korean symmetric 128-bit cipher SEED (see
1547 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1548 add SEED ciphersuites from RFC 4162:
1550 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1551 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1552 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1553 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1555 To minimize changes between patchlevels in the OpenSSL 0.9.8
1556 series, SEED remains excluded from compilation unless OpenSSL
1557 is configured with 'enable-seed'.
1558 [KISA, Bodo Moeller]
1560 *) Mitigate branch prediction attacks, which can be practical if a
1561 single processor is shared, allowing a spy process to extract
1562 information. For detailed background information, see
1563 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1564 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1565 and Necessary Software Countermeasures"). The core of the change
1566 are new versions BN_div_no_branch() and
1567 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1568 respectively, which are slower, but avoid the security-relevant
1569 conditional branches. These are automatically called by BN_div()
1570 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1571 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1572 remove a conditional branch.
1574 BN_FLG_CONSTTIME is the new name for the previous
1575 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1576 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1577 in the exponent causes BN_mod_exp_mont() to use the alternative
1578 implementation in BN_mod_exp_mont_consttime().) The old name
1579 remains as a deprecated alias.
1581 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1582 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1583 constant-time implementations for more than just exponentiation.
1584 Here too the old name is kept as a deprecated alias.
1586 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1587 the BN_BLINDING structure gets an independent copy of the
1588 modulus. This means that the previous "BIGNUM *m" argument to
1589 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1590 essentially becomes "const BIGNUM *m", although we can't actually
1591 change this in the header file before 0.9.9. It allows
1592 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1593 enable BN_FLG_CONSTTIME.
1595 [Matthew D Wood (Intel Corp)]
1597 *) In the SSL/TLS server implementation, be strict about session ID
1598 context matching (which matters if an application uses a single
1599 external cache for different purposes). Previously,
1600 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1601 set. This did ensure strict client verification, but meant that,
1602 with applications using a single external cache for quite
1603 different requirements, clients could circumvent ciphersuite
1604 restrictions for a given session ID context by starting a session
1605 in a different context.
1608 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1609 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1610 authentication-only ciphersuites.
1613 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1614 not complete and could lead to a possible single byte overflow
1615 (CVE-2007-5135) [Ben Laurie]
1617 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1619 *) Since AES128 and AES256 (and similarly Camellia128 and
1620 Camellia256) share a single mask bit in the logic of
1621 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1622 kludge to work properly if AES128 is available and AES256 isn't
1623 (or if Camellia128 is available and Camellia256 isn't).
1626 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1627 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1628 When a point or a seed is encoded in a BIT STRING, we need to
1629 prevent the removal of trailing zero bits to get the proper DER
1630 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1631 of a NamedBitList, for which trailing 0 bits need to be removed.)
1634 *) Have SSL/TLS server implementation tolerate "mismatched" record
1635 protocol version while receiving ClientHello even if the
1636 ClientHello is fragmented. (The server can't insist on the
1637 particular protocol version it has chosen before the ServerHello
1638 message has informed the client about his choice.)
1641 *) Add RFC 3779 support.
1642 [Rob Austein for ARIN, Ben Laurie]
1644 *) Load error codes if they are not already present instead of using a
1645 static variable. This allows them to be cleanly unloaded and reloaded.
1646 Improve header file function name parsing.
1649 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1650 or CAPABILITY handshake as required by RFCs.
1653 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1655 *) Introduce limits to prevent malicious keys being able to
1656 cause a denial of service. (CVE-2006-2940)
1657 [Steve Henson, Bodo Moeller]
1659 *) Fix ASN.1 parsing of certain invalid structures that can result
1660 in a denial of service. (CVE-2006-2937) [Steve Henson]
1662 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1663 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1665 *) Fix SSL client code which could crash if connecting to a
1666 malicious SSLv2 server. (CVE-2006-4343)
1667 [Tavis Ormandy and Will Drewry, Google Security Team]
1669 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1670 match only those. Before that, "AES256-SHA" would be interpreted
1671 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1672 the same strength classification in 0.9.7h) as we currently only
1673 have a single AES bit in the ciphersuite description bitmap.
1674 That change, however, also applied to ciphersuite strings such as
1675 "RC4-MD5" that intentionally matched multiple ciphersuites --
1676 namely, SSL 2.0 ciphersuites in addition to the more common ones
1677 from SSL 3.0/TLS 1.0.
1679 So we change the selection algorithm again: Naming an explicit
1680 ciphersuite selects this one ciphersuite, and any other similar
1681 ciphersuite (same bitmap) from *other* protocol versions.
1682 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1683 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1685 Since SSL 2.0 does not have any ciphersuites for which the
1686 128/256 bit distinction would be relevant, this works for now.
1687 The proper fix will be to use different bits for AES128 and
1688 AES256, which would have avoided the problems from the beginning;
1689 however, bits are scarce, so we can only do this in a new release
1690 (not just a patchlevel) when we can change the SSL_CIPHER
1691 definition to split the single 'unsigned long mask' bitmap into
1692 multiple values to extend the available space.
1696 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1698 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1699 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1701 *) Add AES IGE and biIGE modes.
1704 *) Change the Unix randomness entropy gathering to use poll() when
1705 possible instead of select(), since the latter has some
1706 undesirable limitations.
1707 [Darryl Miles via Richard Levitte and Bodo Moeller]
1709 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1710 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1711 cannot be implicitly activated as part of, e.g., the "AES" alias.
1712 However, please upgrade to OpenSSL 0.9.9[-dev] for
1713 non-experimental use of the ECC ciphersuites to get TLS extension
1714 support, which is required for curve and point format negotiation
1715 to avoid potential handshake problems.
1718 *) Disable rogue ciphersuites:
1720 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1721 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1722 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1724 The latter two were purportedly from
1725 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1728 Also deactivate the remaining ciphersuites from
1729 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1730 unofficial, and the ID has long expired.
1733 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1734 dual-core machines) and other potential thread-safety issues.
1737 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1738 versions), which is now available for royalty-free use
1739 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1740 Also, add Camellia TLS ciphersuites from RFC 4132.
1742 To minimize changes between patchlevels in the OpenSSL 0.9.8
1743 series, Camellia remains excluded from compilation unless OpenSSL
1744 is configured with 'enable-camellia'.
1747 *) Disable the padding bug check when compression is in use. The padding
1748 bug check assumes the first packet is of even length, this is not
1749 necessarily true if compresssion is enabled and can result in false
1750 positives causing handshake failure. The actual bug test is ancient
1751 code so it is hoped that implementations will either have fixed it by
1752 now or any which still have the bug do not support compression.
1755 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1757 *) When applying a cipher rule check to see if string match is an explicit
1758 cipher suite and only match that one cipher suite if it is.
1761 *) Link in manifests for VC++ if needed.
1762 [Austin Ziegler <halostatue@gmail.com>]
1764 *) Update support for ECC-based TLS ciphersuites according to
1765 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1766 TLS extensions, which are supported starting with the 0.9.9
1767 branch, not in the OpenSSL 0.9.8 branch).
1770 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1771 opaque EVP_CIPHER_CTX handling.
1774 *) Fixes and enhancements to zlib compression code. We now only use
1775 "zlib1.dll" and use the default __cdecl calling convention on Win32
1776 to conform with the standards mentioned here:
1777 http://www.zlib.net/DLL_FAQ.txt
1778 Static zlib linking now works on Windows and the new --with-zlib-include
1779 --with-zlib-lib options to Configure can be used to supply the location
1780 of the headers and library. Gracefully handle case where zlib library
1784 *) Several fixes and enhancements to the OID generation code. The old code
1785 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1786 handle numbers larger than ULONG_MAX, truncated printing and had a
1787 non standard OBJ_obj2txt() behaviour.
1790 *) Add support for building of engines under engine/ as shared libraries
1791 under VC++ build system.
1794 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1795 Hopefully, we will not see any false combination of paths any more.
1798 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1800 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1801 (part of SSL_OP_ALL). This option used to disable the
1802 countermeasure against man-in-the-middle protocol-version
1803 rollback in the SSL 2.0 server implementation, which is a bad
1804 idea. (CVE-2005-2969)
1806 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1807 for Information Security, National Institute of Advanced Industrial
1808 Science and Technology [AIST], Japan)]
1810 *) Add two function to clear and return the verify parameter flags.
1813 *) Keep cipherlists sorted in the source instead of sorting them at
1814 runtime, thus removing the need for a lock.
1817 *) Avoid some small subgroup attacks in Diffie-Hellman.
1818 [Nick Mathewson and Ben Laurie]
1820 *) Add functions for well-known primes.
1823 *) Extended Windows CE support.
1824 [Satoshi Nakamura and Andy Polyakov]
1826 *) Initialize SSL_METHOD structures at compile time instead of during
1827 runtime, thus removing the need for a lock.
1830 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1831 attempting to decrypt each encrypted key in turn. Add support to
1835 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1837 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1840 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1843 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1844 key into the same file any more.
1847 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1850 *) Add -utf8 command line and config file option to 'ca'.
1851 [Stefan <stf@udoma.org]
1853 *) Removed the macro des_crypt(), as it seems to conflict with some
1854 libraries. Use DES_crypt().
1857 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1858 involves renaming the source and generated shared-libs for
1859 both. The engines will accept the corrected or legacy ids
1860 ('ncipher' and '4758_cca' respectively) when binding. NB,
1861 this only applies when building 'shared'.
1862 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1864 *) Add attribute functions to EVP_PKEY structure. Modify
1865 PKCS12_create() to recognize a CSP name attribute and
1866 use it. Make -CSP option work again in pkcs12 utility.
1869 *) Add new functionality to the bn blinding code:
1870 - automatic re-creation of the BN_BLINDING parameters after
1871 a fixed number of uses (currently 32)
1872 - add new function for parameter creation
1873 - introduce flags to control the update behaviour of the
1874 BN_BLINDING parameters
1875 - hide BN_BLINDING structure
1876 Add a second BN_BLINDING slot to the RSA structure to improve
1877 performance when a single RSA object is shared among several
1881 *) Add support for DTLS.
1882 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1884 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1885 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1888 *) Remove buggy and incompletet DH cert support from
1889 ssl/ssl_rsa.c and ssl/s3_both.c
1892 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1893 the apps/openssl applications.
1896 *) Compile clean with "-Wall -Wmissing-prototypes
1897 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1898 DEBUG_SAFESTACK must also be set.
1901 *) Change ./Configure so that certain algorithms can be disabled by default.
1902 The new counterpiece to "no-xxx" is "enable-xxx".
1904 The patented RC5 and MDC2 algorithms will now be disabled unless
1905 "enable-rc5" and "enable-mdc2", respectively, are specified.
1907 (IDEA remains enabled despite being patented. This is because IDEA
1908 is frequently required for interoperability, and there is no license
1909 fee for non-commercial use. As before, "no-idea" can be used to
1910 avoid this algorithm.)
1914 *) Add processing of proxy certificates (see RFC 3820). This work was
1915 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1916 EGEE (Enabling Grids for E-science in Europe).
1919 *) RC4 performance overhaul on modern architectures/implementations, such
1920 as Intel P4, IA-64 and AMD64.
1923 *) New utility extract-section.pl. This can be used specify an alternative
1924 section number in a pod file instead of having to treat each file as
1925 a separate case in Makefile. This can be done by adding two lines to the
1928 =for comment openssl_section:XXX
1930 The blank line is mandatory.
1934 *) New arguments -certform, -keyform and -pass for s_client and s_server
1935 to allow alternative format key and certificate files and passphrase
1939 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1940 update associated structures and add various utility functions.
1942 Add new policy related verify parameters, include policy checking in
1943 standard verify code. Enhance 'smime' application with extra parameters
1944 to support policy checking and print out.
1947 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1948 Nehemiah processors. These extensions support AES encryption in hardware
1949 as well as RNG (though RNG support is currently disabled).
1950 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1952 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1955 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1956 [Andy Polyakov and a number of other people]
1958 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1959 implementation contributed by IBM.
1960 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1962 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1963 exponent rather than 'unsigned long'. There is a corresponding change to
1964 the new 'rsa_keygen' element of the RSA_METHOD structure.
1965 [Jelte Jansen, Geoff Thorpe]
1967 *) Functionality for creating the initial serial number file is now
1968 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1970 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1971 number file to 1, which is bound to cause problems. To avoid
1972 the problems while respecting compatibility between different 0.9.7
1973 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1974 CA.pl for serial number initialization. With the new release 0.9.8,
1975 we can fix the problem directly in the 'ca' utility.)
1978 *) Reduced header interdepencies by declaring more opaque objects in
1979 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1980 give fewer recursive includes, which could break lazy source code - so
1981 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1982 developers should define this symbol when building and using openssl to
1983 ensure they track the recommended behaviour, interfaces, [etc], but
1984 backwards-compatible behaviour prevails when this isn't defined.
1987 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1990 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1991 This will generate a random key of the appropriate length based on the
1992 cipher context. The EVP_CIPHER can provide its own random key generation
1993 routine to support keys of a specific form. This is used in the des and
1994 3des routines to generate a key of the correct parity. Update S/MIME
1995 code to use new functions and hence generate correct parity DES keys.
1996 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1997 valid (weak or incorrect parity).
2000 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2001 as looking them up. This is useful when the verified structure may contain
2002 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2003 present unless the new PKCS7_NO_CRL flag is asserted.
2006 *) Extend ASN1 oid configuration module. It now additionally accepts the
2009 shortName = some long name, 1.2.3.4
2012 *) Reimplemented the BN_CTX implementation. There is now no more static
2013 limitation on the number of variables it can handle nor the depth of the
2014 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2015 information can now expand as required, and rather than having a single
2016 static array of bignums, BN_CTX now uses a linked-list of such arrays
2017 allowing it to expand on demand whilst maintaining the usefulness of
2018 BN_CTX's "bundling".
2021 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2022 to allow all RSA operations to function using a single BN_CTX.
2025 *) Preliminary support for certificate policy evaluation and checking. This
2026 is initially intended to pass the tests outlined in "Conformance Testing
2027 of Relying Party Client Certificate Path Processing Logic" v1.07.
2030 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2031 remained unused and not that useful. A variety of other little bignum
2032 tweaks and fixes have also been made continuing on from the audit (see
2036 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2037 associated ASN1, EVP and SSL functions and old ASN1 macros.
2040 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2041 and this should never fail. So the return value from the use of
2042 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2043 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2046 *) BN_CTX_get() should return zero-valued bignums, providing the same
2047 initialised value as BN_new().
2048 [Geoff Thorpe, suggested by Ulf Möller]
2050 *) Support for inhibitAnyPolicy certificate extension.
2053 *) An audit of the BIGNUM code is underway, for which debugging code is
2054 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2055 is considered valid when processing BIGNUMs, and causes execution to
2056 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2057 further steps are taken to deliberately pollute unused data in BIGNUM
2058 structures to try and expose faulty code further on. For now, openssl will
2059 (in its default mode of operation) continue to tolerate the inconsistent
2060 forms that it has tolerated in the past, but authors and packagers should
2061 consider trying openssl and their own applications when compiled with
2062 these debugging symbols defined. It will help highlight potential bugs in
2063 their own code, and will improve the test coverage for OpenSSL itself. At
2064 some point, these tighter rules will become openssl's default to improve
2065 maintainability, though the assert()s and other overheads will remain only
2066 in debugging configurations. See bn.h for more details.
2067 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2069 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2070 that can only be obtained through BN_CTX_new() (which implicitly
2071 initialises it). The presence of this function only made it possible
2072 to overwrite an existing structure (and cause memory leaks).
2075 *) Because of the callback-based approach for implementing LHASH as a
2076 template type, lh_insert() adds opaque objects to hash-tables and
2077 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2078 to clean up those corresponding objects before destroying the hash table
2079 (and losing the object pointers). So some over-zealous constifications in
2080 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2081 objects as "const" and the lh_doall[_arg] callback wrappers are not
2082 prototyped to have "const" restrictions on the object pointers they are
2083 given (and so aren't required to cast them away any more).
2086 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2087 (speed) prefers to use its own implementation. The two implementations
2088 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2089 its object type properly exposed (MS_TM) instead of casting to/from "char
2090 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2091 aren't necessarily the greatest nomenclatures - but this is what was used
2092 internally to the implementation so I've used that for now.
2095 *) Ensure that deprecated functions do not get compiled when
2096 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2097 the self-tests were still using deprecated key-generation functions so
2098 these have been updated also.
2101 *) Reorganise PKCS#7 code to separate the digest location functionality
2102 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2103 New function PKCS7_set_digest() to set the digest type for PKCS#7
2104 digestedData type. Add additional code to correctly generate the
2105 digestedData type and add support for this type in PKCS7 initialization
2109 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2110 structure of type "other".
2113 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2114 sure the loop does correctly stop and breaking ("division by zero")
2115 modulus operations are not performed. The (pre-generated) prime
2116 table crypto/bn/bn_prime.h was already correct, but it could not be
2117 re-generated on some platforms because of the "division by zero"
2118 situation in the script.
2119 [Ralf S. Engelschall]
2121 *) Update support for ECC-based TLS ciphersuites according to
2122 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2123 SHA-1 now is only used for "small" curves (where the
2124 representation of a field element takes up to 24 bytes); for
2125 larger curves, the field element resulting from ECDH is directly
2126 used as premaster secret.
2127 [Douglas Stebila (Sun Microsystems Laboratories)]
2129 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2130 curve secp160r1 to the tests.
2131 [Douglas Stebila (Sun Microsystems Laboratories)]
2133 *) Add the possibility to load symbols globally with DSO.
2134 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2136 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2137 control of the error stack.
2140 *) Add support for STORE in ENGINE.
2143 *) Add the STORE type. The intention is to provide a common interface
2144 to certificate and key stores, be they simple file-based stores, or
2145 HSM-type store, or LDAP stores, or...
2146 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2149 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2150 pass a list of arguments to any function as well as provide a way
2151 for a function to pass data back to the caller.
2154 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2155 works like BUF_strdup() but can be used to duplicate a portion of
2156 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2160 *) Add the function sk_find_ex() which works like sk_find(), but will
2161 return an index to an element even if an exact match couldn't be
2162 found. The index is guaranteed to point at the element where the
2163 searched-for key would be inserted to preserve sorting order.
2166 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2167 takes an extra flags argument for optional functionality. Currently,
2168 the following flags are defined:
2170 OBJ_BSEARCH_VALUE_ON_NOMATCH
2171 This one gets OBJ_bsearch_ex() to return a pointer to the first
2172 element where the comparing function returns a negative or zero
2175 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2176 This one gets OBJ_bsearch_ex() to return a pointer to the first
2177 element where the comparing function returns zero. This is useful
2178 if there are more than one element where the comparing function
2182 *) Make it possible to create self-signed certificates with 'openssl ca'
2183 in such a way that the self-signed certificate becomes part of the
2184 CA database and uses the same mechanisms for serial number generation
2185 as all other certificate signing. The new flag '-selfsign' enables
2186 this functionality. Adapt CA.sh and CA.pl.in.
2189 *) Add functionality to check the public key of a certificate request
2190 against a given private. This is useful to check that a certificate
2191 request can be signed by that key (self-signing).
2194 *) Make it possible to have multiple active certificates with the same
2195 subject in the CA index file. This is done only if the keyword
2196 'unique_subject' is set to 'no' in the main CA section (default
2197 if 'CA_default') of the configuration file. The value is saved
2198 with the database itself in a separate index attribute file,
2199 named like the index file with '.attr' appended to the name.
2202 *) Generate muti valued AVAs using '+' notation in config files for
2206 *) Support for nameConstraints certificate extension.
2209 *) Support for policyConstraints certificate extension.
2212 *) Support for policyMappings certificate extension.
2215 *) Make sure the default DSA_METHOD implementation only uses its
2216 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2217 and change its own handlers to be NULL so as to remove unnecessary
2218 indirection. This lets alternative implementations fallback to the
2219 default implementation more easily.
2222 *) Support for directoryName in GeneralName related extensions
2226 *) Make it possible to link applications using Makefile.shared.
2227 Make that possible even when linking against static libraries!
2230 *) Support for single pass processing for S/MIME signing. This now
2231 means that S/MIME signing can be done from a pipe, in addition
2232 cleartext signing (multipart/signed type) is effectively streaming
2233 and the signed data does not need to be all held in memory.
2235 This is done with a new flag PKCS7_STREAM. When this flag is set
2236 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2237 is done after the data is output (and digests calculated) in
2238 SMIME_write_PKCS7().
2241 *) Add full support for -rpath/-R, both in shared libraries and
2242 applications, at least on the platforms where it's known how
2246 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2247 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2248 will now compute a table of multiples of the generator that
2249 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2250 faster (notably in the case of a single point multiplication,
2251 scalar * generator).
2252 [Nils Larsch, Bodo Moeller]
2254 *) IPv6 support for certificate extensions. The various extensions
2255 which use the IP:a.b.c.d can now take IPv6 addresses using the
2256 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2260 *) Added an ENGINE that implements RSA by performing private key
2261 exponentiations with the GMP library. The conversions to and from
2262 GMP's mpz_t format aren't optimised nor are any montgomery forms
2263 cached, and on x86 it appears OpenSSL's own performance has caught up.
2264 However there are likely to be other architectures where GMP could
2265 provide a boost. This ENGINE is not built in by default, but it can be
2266 specified at Configure time and should be accompanied by the necessary
2267 linker additions, eg;
2268 ./config -DOPENSSL_USE_GMP -lgmp
2271 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2272 testing availability of engines with "-t" - the old behaviour is
2273 produced by increasing the feature's verbosity with "-tt".
2276 *) ECDSA routines: under certain error conditions uninitialized BN objects
2277 could be freed. Solution: make sure initialization is performed early
2278 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2282 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2283 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2284 software implementations. For DSA and DH, parameter generation can
2285 also be overriden by providing the appropriate method callbacks.
2288 *) Change the "progress" mechanism used in key-generation and
2289 primality testing to functions that take a new BN_GENCB pointer in
2290 place of callback/argument pairs. The new API functions have "_ex"
2291 postfixes and the older functions are reimplemented as wrappers for
2292 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2293 declarations of the old functions to help (graceful) attempts to
2294 migrate to the new functions. Also, the new key-generation API
2295 functions operate on a caller-supplied key-structure and return
2296 success/failure rather than returning a key or NULL - this is to
2297 help make "keygen" another member function of RSA_METHOD etc.
2299 Example for using the new callback interface:
2301 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2305 BN_GENCB_set(&my_cb, my_callback, my_arg);
2307 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2308 /* For the meaning of a, b in calls to my_callback(), see the
2309 * documentation of the function that calls the callback.
2310 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2311 * my_callback should return 1 if it wants BN_is_prime_ex()
2312 * to continue, or 0 to stop.
2317 *) Change the ZLIB compression method to be stateful, and make it
2318 available to TLS with the number defined in
2319 draft-ietf-tls-compression-04.txt.
2322 *) Add the ASN.1 structures and functions for CertificatePair, which
2323 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2325 CertificatePair ::= SEQUENCE {
2326 forward [0] Certificate OPTIONAL,
2327 reverse [1] Certificate OPTIONAL,
2328 -- at least one of the pair shall be present -- }
2330 Also implement the PEM functions to read and write certificate
2331 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2333 This needed to be defined, mostly for the sake of the LDAP
2334 attribute crossCertificatePair, but may prove useful elsewhere as
2338 *) Make it possible to inhibit symlinking of shared libraries in
2339 Makefile.shared, for Cygwin's sake.
2342 *) Extend the BIGNUM API by creating a function
2343 void BN_set_negative(BIGNUM *a, int neg);
2344 and a macro that behave like
2345 int BN_is_negative(const BIGNUM *a);
2347 to avoid the need to access 'a->neg' directly in applications.
2350 *) Implement fast modular reduction for pseudo-Mersenne primes
2351 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2352 EC_GROUP_new_curve_GFp() will now automatically use this
2354 [Nils Larsch <nla@trustcenter.de>]
2356 *) Add new lock type (CRYPTO_LOCK_BN).
2359 *) Change the ENGINE framework to automatically load engines
2360 dynamically from specific directories unless they could be
2361 found to already be built in or loaded. Move all the
2362 current engines except for the cryptodev one to a new
2364 The engines in engines/ are built as shared libraries if
2365 the "shared" options was given to ./Configure or ./config.
2366 Otherwise, they are inserted in libcrypto.a.
2367 /usr/local/ssl/engines is the default directory for dynamic
2368 engines, but that can be overriden at configure time through
2369 the usual use of --prefix and/or --openssldir, and at run
2370 time with the environment variable OPENSSL_ENGINES.
2371 [Geoff Thorpe and Richard Levitte]
2373 *) Add Makefile.shared, a helper makefile to build shared
2374 libraries. Addapt Makefile.org.
2377 *) Add version info to Win32 DLLs.
2378 [Peter 'Luna' Runestig" <peter@runestig.com>]
2380 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2381 can be added using this API to created arbitrary PKCS#12
2382 files while avoiding the low level API.
2384 New options to PKCS12_create(), key or cert can be NULL and
2385 will then be omitted from the output file. The encryption
2386 algorithm NIDs can be set to -1 for no encryption, the mac
2387 iteration count can be set to 0 to omit the mac.
2389 Enhance pkcs12 utility by making the -nokeys and -nocerts
2390 options work when creating a PKCS#12 file. New option -nomac
2391 to omit the mac, NONE can be set for an encryption algorithm.
2392 New code is modified to use the enhanced PKCS12_create()
2393 instead of the low level API.
2396 *) Extend ASN1 encoder to support indefinite length constructed
2397 encoding. This can output sequences tags and octet strings in
2398 this form. Modify pk7_asn1.c to support indefinite length
2399 encoding. This is experimental and needs additional code to
2400 be useful, such as an ASN1 bio and some enhanced streaming
2403 Extend template encode functionality so that tagging is passed
2404 down to the template encoder.
2407 *) Let 'openssl req' fail if an argument to '-newkey' is not
2408 recognized instead of using RSA as a default.
2411 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2412 As these are not official, they are not included in "ALL";
2413 the "ECCdraft" ciphersuite group alias can be used to select them.
2414 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2416 *) Add ECDH engine support.
2417 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2419 *) Add ECDH in new directory crypto/ecdh/.
2420 [Douglas Stebila (Sun Microsystems Laboratories)]
2422 *) Let BN_rand_range() abort with an error after 100 iterations
2423 without success (which indicates a broken PRNG).
2426 *) Change BN_mod_sqrt() so that it verifies that the input value
2427 is really the square of the return value. (Previously,
2428 BN_mod_sqrt would show GIGO behaviour.)
2431 *) Add named elliptic curves over binary fields from X9.62, SECG,
2432 and WAP/WTLS; add OIDs that were still missing.
2434 [Sheueling Chang Shantz and Douglas Stebila
2435 (Sun Microsystems Laboratories)]
2437 *) Extend the EC library for elliptic curves over binary fields
2438 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2441 EC_GF2m_simple_method
2445 EC_GROUP_new_curve_GF2m
2446 EC_GROUP_set_curve_GF2m
2447 EC_GROUP_get_curve_GF2m
2448 EC_POINT_set_affine_coordinates_GF2m
2449 EC_POINT_get_affine_coordinates_GF2m
2450 EC_POINT_set_compressed_coordinates_GF2m
2452 Point compression for binary fields is disabled by default for
2453 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2456 As binary polynomials are represented as BIGNUMs, various members
2457 of the EC_GROUP and EC_POINT data structures can be shared
2458 between the implementations for prime fields and binary fields;
2459 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2460 are essentially identical to their ..._GFp counterparts.
2461 (For simplicity, the '..._GFp' prefix has been dropped from
2462 various internal method names.)
2464 An internal 'field_div' method (similar to 'field_mul' and
2465 'field_sqr') has been added; this is used only for binary fields.
2467 [Sheueling Chang Shantz and Douglas Stebila
2468 (Sun Microsystems Laboratories)]
2470 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2471 through methods ('mul', 'precompute_mult').
2473 The generic implementations (now internally called 'ec_wNAF_mul'
2474 and 'ec_wNAF_precomputed_mult') remain the default if these
2475 methods are undefined.
2477 [Sheueling Chang Shantz and Douglas Stebila
2478 (Sun Microsystems Laboratories)]
2480 *) New function EC_GROUP_get_degree, which is defined through
2481 EC_METHOD. For curves over prime fields, this returns the bit
2482 length of the modulus.
2484 [Sheueling Chang Shantz and Douglas Stebila
2485 (Sun Microsystems Laboratories)]
2487 *) New functions EC_GROUP_dup, EC_POINT_dup.
2488 (These simply call ..._new and ..._copy).
2490 [Sheueling Chang Shantz and Douglas Stebila
2491 (Sun Microsystems Laboratories)]
2493 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2494 Polynomials are represented as BIGNUMs (where the sign bit is not
2495 used) in the following functions [macros]:
2498 BN_GF2m_sub [= BN_GF2m_add]
2499 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2500 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2501 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2503 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2504 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2505 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2506 BN_GF2m_cmp [= BN_ucmp]
2508 (Note that only the 'mod' functions are actually for fields GF(2^m).
2509 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2511 For some functions, an the irreducible polynomial defining a
2512 field can be given as an 'unsigned int[]' with strictly
2513 decreasing elements giving the indices of those bits that are set;
2514 i.e., p[] represents the polynomial
2515 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2517 p[0] > p[1] > ... > p[k] = 0.
2518 This applies to the following functions:
2523 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2524 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2526 BN_GF2m_mod_sqrt_arr
2527 BN_GF2m_mod_solve_quad_arr
2531 Conversion can be performed by the following functions:
2536 bntest.c has additional tests for binary polynomial arithmetic.
2538 Two implementations for BN_GF2m_mod_div() are available.
2539 The default algorithm simply uses BN_GF2m_mod_inv() and
2540 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2541 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2542 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2544 [Sheueling Chang Shantz and Douglas Stebila
2545 (Sun Microsystems Laboratories)]
2547 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2548 functionality is disabled at compile-time.
2549 [Douglas Stebila <douglas.stebila@sun.com>]
2551 *) Change default behaviour of 'openssl asn1parse' so that more
2552 information is visible when viewing, e.g., a certificate:
2554 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2555 mode the content of non-printable OCTET STRINGs is output in a
2556 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2557 avoid the appearance of a printable string.
2558 [Nils Larsch <nla@trustcenter.de>]
2560 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2562 EC_GROUP_set_asn1_flag()
2563 EC_GROUP_get_asn1_flag()
2564 EC_GROUP_set_point_conversion_form()
2565 EC_GROUP_get_point_conversion_form()
2566 These control ASN1 encoding details:
2567 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2568 has been set to OPENSSL_EC_NAMED_CURVE.
2569 - Points are encoded in uncompressed form by default; options for
2570 asn1_for are as for point2oct, namely
2571 POINT_CONVERSION_COMPRESSED
2572 POINT_CONVERSION_UNCOMPRESSED
2573 POINT_CONVERSION_HYBRID
2575 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2578 EC_GROUP_get0_seed()
2579 EC_GROUP_get_seed_len()
2580 This is used only for ASN1 purposes (so far).
2581 [Nils Larsch <nla@trustcenter.de>]
2583 *) Add 'field_type' member to EC_METHOD, which holds the NID
2584 of the appropriate field type OID. The new function
2585 EC_METHOD_get_field_type() returns this value.
2586 [Nils Larsch <nla@trustcenter.de>]
2591 EC_POINT_point2hex()
2592 EC_POINT_hex2point()
2593 providing useful interfaces to EC_POINT_point2oct() and
2594 EC_POINT_oct2point().
2595 [Nils Larsch <nla@trustcenter.de>]
2597 *) Change internals of the EC library so that the functions
2598 EC_GROUP_set_generator()
2599 EC_GROUP_get_generator()
2600 EC_GROUP_get_order()
2601 EC_GROUP_get_cofactor()
2602 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2603 to methods, which would lead to unnecessary code duplication when
2604 adding different types of curves.
2605 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2607 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2608 arithmetic, and such that modified wNAFs are generated
2609 (which avoid length expansion in many cases).
2612 *) Add a function EC_GROUP_check_discriminant() (defined via
2613 EC_METHOD) that verifies that the curve discriminant is non-zero.
2615 Add a function EC_GROUP_check() that makes some sanity tests
2616 on a EC_GROUP, its generator and order. This includes
2617 EC_GROUP_check_discriminant().
2618 [Nils Larsch <nla@trustcenter.de>]
2620 *) Add ECDSA in new directory crypto/ecdsa/.
2622 Add applications 'openssl ecparam' and 'openssl ecdsa'
2623 (these are based on 'openssl dsaparam' and 'openssl dsa').
2625 ECDSA support is also included in various other files across the
2626 library. Most notably,
2627 - 'openssl req' now has a '-newkey ecdsa:file' option;
2628 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2629 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2630 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2631 them suitable for ECDSA where domain parameters must be
2632 extracted before the specific public key;
2633 - ECDSA engine support has been added.
2634 [Nils Larsch <nla@trustcenter.de>]
2636 *) Include some named elliptic curves, and add OIDs from X9.62,
2637 SECG, and WAP/WTLS. Each curve can be obtained from the new
2639 EC_GROUP_new_by_curve_name(),
2640 and the list of available named curves can be obtained with
2641 EC_get_builtin_curves().
2642 Also add a 'curve_name' member to EC_GROUP objects, which can be
2644 EC_GROUP_set_curve_name()
2645 EC_GROUP_get_curve_name()
2646 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2648 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2649 was actually never needed) and in BN_mul(). The removal in BN_mul()
2650 required a small change in bn_mul_part_recursive() and the addition
2651 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2652 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2653 bn_sub_words() and bn_add_words() except they take arrays with
2657 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2659 *) Cleanse PEM buffers before freeing them since they may contain
2661 [Benjamin Bennett <ben@psc.edu>]
2663 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2664 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2665 authentication-only ciphersuites.
2668 *) Since AES128 and AES256 share a single mask bit in the logic of
2669 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2670 kludge to work properly if AES128 is available and AES256 isn't.
2673 *) Expand security boundary to match 1.1.1 module.
2676 *) Remove redundant features: hash file source, editing of test vectors
2677 modify fipsld to use external fips_premain.c signature.
2680 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2681 run algorithm test programs.
2684 *) Make algorithm test programs more tolerant of whitespace.
2687 *) Have SSL/TLS server implementation tolerate "mismatched" record
2688 protocol version while receiving ClientHello even if the
2689 ClientHello is fragmented. (The server can't insist on the
2690 particular protocol version it has chosen before the ServerHello
2691 message has informed the client about his choice.)
2694 *) Load error codes if they are not already present instead of using a
2695 static variable. This allows them to be cleanly unloaded and reloaded.
2698 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2700 *) Introduce limits to prevent malicious keys being able to
2701 cause a denial of service. (CVE-2006-2940)
2702 [Steve Henson, Bodo Moeller]
2704 *) Fix ASN.1 parsing of certain invalid structures that can result
2705 in a denial of service. (CVE-2006-2937) [Steve Henson]
2707 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2708 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2710 *) Fix SSL client code which could crash if connecting to a
2711 malicious SSLv2 server. (CVE-2006-4343)
2712 [Tavis Ormandy and Will Drewry, Google Security Team]
2714 *) Change ciphersuite string processing so that an explicit
2715 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2716 will no longer include "AES128-SHA"), and any other similar
2717 ciphersuite (same bitmap) from *other* protocol versions (so that
2718 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2719 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2720 changes from 0.9.8b and 0.9.8d.
2723 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2725 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2726 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2728 *) Change the Unix randomness entropy gathering to use poll() when
2729 possible instead of select(), since the latter has some
2730 undesirable limitations.
2731 [Darryl Miles via Richard Levitte and Bodo Moeller]
2733 *) Disable rogue ciphersuites:
2735 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2736 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2737 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2739 The latter two were purportedly from
2740 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2743 Also deactive the remaining ciphersuites from
2744 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2745 unofficial, and the ID has long expired.
2748 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2749 dual-core machines) and other potential thread-safety issues.
2752 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2754 *) Adapt fipsld and the build system to link against the validated FIPS
2755 module in FIPS mode.
2758 *) Fixes for VC++ 2005 build under Windows.
2761 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2762 from a Windows bash shell such as MSYS. It is autodetected from the
2763 "config" script when run from a VC++ environment. Modify standard VC++
2764 build to use fipscanister.o from the GNU make build.
2767 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2769 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2770 The value now differs depending on if you build for FIPS or not.
2771 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2772 safely run with a non-FIPSed libcrypto, as it may crash because of
2773 the difference induced by this change.
2776 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2778 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2779 (part of SSL_OP_ALL). This option used to disable the
2780 countermeasure against man-in-the-middle protocol-version
2781 rollback in the SSL 2.0 server implementation, which is a bad
2782 idea. (CVE-2005-2969)
2784 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2785 for Information Security, National Institute of Advanced Industrial
2786 Science and Technology [AIST], Japan)]
2788 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2789 mainly for FIPS compliance and not fully integrated at this stage.
2792 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2793 the exponentiation using a fixed-length exponent. (Otherwise,
2794 the information leaked through timing could expose the secret key
2795 after many signatures; cf. Bleichenbacher's attack on DSA with
2799 *) Make a new fixed-window mod_exp implementation the default for
2800 RSA, DSA, and DH private-key operations so that the sequence of
2801 squares and multiplies and the memory access pattern are
2802 independent of the particular secret key. This will mitigate
2803 cache-timing and potential related attacks.
2805 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2806 and this is automatically used by BN_mod_exp_mont() if the new flag
2807 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2808 will use this BN flag for private exponents unless the flag
2809 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2810 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2812 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2814 *) Change the client implementation for SSLv23_method() and
2815 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2816 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2817 (Previously, the SSL 2.0 backwards compatible Client Hello
2818 message format would be used even with SSL_OP_NO_SSLv2.)
2821 *) Add support for smime-type MIME parameter in S/MIME messages which some
2825 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2826 a threadsafe manner. Modify rsa code to use new function and add calls
2827 to dsa and dh code (which had race conditions before).
2830 *) Include the fixed error library code in the C error file definitions
2831 instead of fixing them up at runtime. This keeps the error code
2832 structures constant.
2835 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2837 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2840 *) Fixes for newer kerberos headers. NB: the casts are needed because
2841 the 'length' field is signed on one version and unsigned on another
2842 with no (?) obvious way to tell the difference, without these VC++
2843 complains. Also the "definition" of FAR (blank) is no longer included
2844 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2845 some needed definitions.
2848 *) Undo Cygwin change.
2851 *) Added support for proxy certificates according to RFC 3820.
2852 Because they may be a security thread to unaware applications,
2853 they must be explicitely allowed in run-time. See
2854 docs/HOWTO/proxy_certificates.txt for further information.
2857 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2859 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2860 server and client random values. Previously
2861 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2862 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2864 This change has negligible security impact because:
2866 1. Server and client random values still have 24 bytes of pseudo random
2869 2. Server and client random values are sent in the clear in the initial
2872 3. The master secret is derived using the premaster secret (48 bytes in
2873 size for static RSA ciphersuites) as well as client server and random
2876 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2879 [Stephen Henson, reported by UK NISCC]
2881 *) Use Windows randomness collection on Cygwin.
2884 *) Fix hang in EGD/PRNGD query when communication socket is closed
2885 prematurely by EGD/PRNGD.
2886 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2888 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2891 *) Back-port of selected performance improvements from development
2892 branch, as well as improved support for PowerPC platforms.
2895 *) Add lots of checks for memory allocation failure, error codes to indicate
2896 failure and freeing up memory if a failure occurs.
2897 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2899 *) Add new -passin argument to dgst.
2902 *) Perform some character comparisons of different types in X509_NAME_cmp:
2903 this is needed for some certificates that reencode DNs into UTF8Strings
2904 (in violation of RFC3280) and can't or wont issue name rollover
2908 *) Make an explicit check during certificate validation to see that
2909 the CA setting in each certificate on the chain is correct. As a
2910 side effect always do the following basic checks on extensions,
2911 not just when there's an associated purpose to the check:
2913 - if there is an unhandled critical extension (unless the user
2914 has chosen to ignore this fault)
2915 - if the path length has been exceeded (if one is set at all)
2916 - that certain extensions fit the associated purpose (if one has
2920 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2922 *) Avoid a race condition when CRLs are checked in a multi threaded
2923 environment. This would happen due to the reordering of the revoked
2924 entries during signature checking and serial number lookup. Now the
2925 encoding is cached and the serial number sort performed under a lock.
2926 Add new STACK function sk_is_sorted().
2929 *) Add Delta CRL to the extension code.
2932 *) Various fixes to s3_pkt.c so alerts are sent properly.
2933 [David Holmes <d.holmes@f5.com>]
2935 *) Reduce the chances of duplicate issuer name and serial numbers (in
2936 violation of RFC3280) using the OpenSSL certificate creation utilities.
2937 This is done by creating a random 64 bit value for the initial serial
2938 number when a serial number file is created or when a self signed
2939 certificate is created using 'openssl req -x509'. The initial serial
2940 number file is created using 'openssl x509 -next_serial' in CA.pl
2941 rather than being initialized to 1.
2944 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2946 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2947 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2948 [Joe Orton, Steve Henson]
2950 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2952 [Joe Orton, Steve Henson]
2954 *) Make it possible to have multiple active certificates with the same
2955 subject in the CA index file. This is done only if the keyword
2956 'unique_subject' is set to 'no' in the main CA section (default
2957 if 'CA_default') of the configuration file. The value is saved
2958 with the database itself in a separate index attribute file,
2959 named like the index file with '.attr' appended to the name.
2962 *) X509 verify fixes. Disable broken certificate workarounds when
2963 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2964 keyUsage extension present. Don't accept CRLs with unhandled critical
2965 extensions: since verify currently doesn't process CRL extensions this
2966 rejects a CRL with *any* critical extensions. Add new verify error codes
2970 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2971 A clarification of RFC2560 will require the use of OCTET STRINGs and
2972 some implementations cannot handle the current raw format. Since OpenSSL
2973 copies and compares OCSP nonces as opaque blobs without any attempt at
2974 parsing them this should not create any compatibility issues.
2977 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2978 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2979 this HMAC (and other) operations are several times slower than OpenSSL
2983 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2984 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2986 *) Use the correct content when signing type "other".
2989 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2991 *) Fix various bugs revealed by running the NISCC test suite:
2993 Stop out of bounds reads in the ASN1 code when presented with
2994 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2996 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2998 If verify callback ignores invalid public key errors don't try to check
2999 certificate signature with the NULL public key.
3003 *) New -ignore_err option in ocsp application to stop the server
3004 exiting on the first error in a request.
3007 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3008 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3012 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3013 extra data after the compression methods not only for TLS 1.0
3014 but also for SSL 3.0 (as required by the specification).
3015 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3017 *) Change X509_certificate_type() to mark the key as exported/exportable
3018 when it's 512 *bits* long, not 512 bytes.
3021 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3022 blocks during encryption.
3025 *) Various fixes to base64 BIO and non blocking I/O. On write
3026 flushes were not handled properly if the BIO retried. On read
3027 data was not being buffered properly and had various logic bugs.
3028 This also affects blocking I/O when the data being decoded is a
3032 *) Various S/MIME bugfixes and compatibility changes:
3033 output correct application/pkcs7 MIME type if
3034 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3035 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3036 of files as .eml work). Correctly handle very long lines in MIME
3040 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3042 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3043 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3044 a protocol version number mismatch like a decryption error
3045 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3048 *) Turn on RSA blinding by default in the default implementation
3049 to avoid a timing attack. Applications that don't want it can call
3050 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3051 They would be ill-advised to do so in most cases.
3052 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3054 *) Change RSA blinding code so that it works when the PRNG is not
3055 seeded (in this case, the secret RSA exponent is abused as
3056 an unpredictable seed -- if it is not unpredictable, there
3057 is no point in blinding anyway). Make RSA blinding thread-safe
3058 by remembering the creator's thread ID in rsa->blinding and
3059 having all other threads use local one-time blinding factors
3060 (this requires more computation than sharing rsa->blinding, but
3061 avoids excessive locking; and if an RSA object is not shared
3062 between threads, blinding will still be very fast).
3065 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3066 ENGINE as defaults for all supported algorithms irrespective of
3067 the 'flags' parameter. 'flags' is now honoured, so applications
3068 should make sure they are passing it correctly.
3071 *) Target "mingw" now allows native Windows code to be generated in
3072 the Cygwin environment as well as with the MinGW compiler.
3075 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3077 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3078 via timing by performing a MAC computation even if incorrrect
3079 block cipher padding has been found. This is a countermeasure
3080 against active attacks where the attacker has to distinguish
3081 between bad padding and a MAC verification error. (CVE-2003-0078)
3083 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3084 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3085 Martin Vuagnoux (EPFL, Ilion)]
3087 *) Make the no-err option work as intended. The intention with no-err
3088 is not to have the whole error stack handling routines removed from
3089 libcrypto, it's only intended to remove all the function name and
3090 reason texts, thereby removing some of the footprint that may not
3091 be interesting if those errors aren't displayed anyway.
3093 NOTE: it's still possible for any application or module to have it's
3094 own set of error texts inserted. The routines are there, just not
3095 used by default when no-err is given.
3098 *) Add support for FreeBSD on IA64.
3099 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3101 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3102 Kerberos function mit_des_cbc_cksum(). Before this change,
3103 the value returned by DES_cbc_cksum() was like the one from
3104 mit_des_cbc_cksum(), except the bytes were swapped.
3105 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3107 *) Allow an application to disable the automatic SSL chain building.
3108 Before this a rather primitive chain build was always performed in
3109 ssl3_output_cert_chain(): an application had no way to send the
3110 correct chain if the automatic operation produced an incorrect result.
3112 Now the chain builder is disabled if either:
3114 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3116 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3118 The reasoning behind this is that an application would not want the
3119 auto chain building to take place if extra chain certificates are
3120 present and it might also want a means of sending no additional
3121 certificates (for example the chain has two certificates and the
3125 *) Add the possibility to build without the ENGINE framework.
3126 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3128 *) Under Win32 gmtime() can return NULL: check return value in
3129 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3132 *) DSA routines: under certain error conditions uninitialized BN objects
3133 could be freed. Solution: make sure initialization is performed early
3134 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3135 Nils Larsch <nla@trustcenter.de> via PR#459)
3138 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3139 checked on reconnect on the client side, therefore session resumption
3140 could still fail with a "ssl session id is different" error. This
3141 behaviour is masked when SSL_OP_ALL is used due to
3142 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3143 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3144 followup to PR #377.
3147 *) IA-32 assembler support enhancements: unified ELF targets, support
3148 for SCO/Caldera platforms, fix for Cygwin shared build.
3151 *) Add support for FreeBSD on sparc64. As a consequence, support for
3152 FreeBSD on non-x86 processors is separate from x86 processors on
3153 the config script, much like the NetBSD support.
3154 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3156 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3158 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3161 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3162 code (06) was taken as the first octet of the session ID and the last
3163 octet was ignored consequently. As a result SSLv2 client side session
3164 caching could not have worked due to the session ID mismatch between
3166 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3170 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3171 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3175 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3176 seems that in spite of existing for more than a year, many application
3177 author have done nothing to provide the necessary callbacks, which
3178 means that this particular engine will not work properly anywhere.
3179 This is a very unfortunate situation which forces us, in the name
3180 of usability, to give the hw_ncipher.c a static lock, which is part
3182 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3183 appear in 0.9.8 or later. We EXPECT application authors to have
3184 dealt properly with this when 0.9.8 is released (unless we actually
3185 make such changes in the libcrypto locking code that changes will
3186 have to be made anyway).
3189 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3190 octets have been read, EOF or an error occurs. Without this change
3191 some truncated ASN1 structures will not produce an error.
3194 *) Disable Heimdal support, since it hasn't been fully implemented.
3195 Still give the possibility to force the use of Heimdal, but with
3196 warnings and a request that patches get sent to openssl-dev.
3199 *) Add the VC-CE target, introduce the WINCE sysname, and add
3200 INSTALL.WCE and appropriate conditionals to make it build.
3201 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3203 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3204 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3205 edit numbers of the version.
3206 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3208 *) Introduce safe string copy and catenation functions
3209 (BUF_strlcpy() and BUF_strlcat()).
3210 [Ben Laurie (CHATS) and Richard Levitte]
3212 *) Avoid using fixed-size buffers for one-line DNs.
3213 [Ben Laurie (CHATS)]
3215 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3216 resizing buffers containing secrets, and use where appropriate.
3217 [Ben Laurie (CHATS)]
3219 *) Avoid using fixed size buffers for configuration file location.
3220 [Ben Laurie (CHATS)]
3222 *) Avoid filename truncation for various CA files.
3223 [Ben Laurie (CHATS)]
3225 *) Use sizeof in preference to magic numbers.
3226 [Ben Laurie (CHATS)]
3228 *) Avoid filename truncation in cert requests.
3229 [Ben Laurie (CHATS)]
3231 *) Add assertions to check for (supposedly impossible) buffer
3233 [Ben Laurie (CHATS)]
3235 *) Don't cache truncated DNS entries in the local cache (this could
3236 potentially lead to a spoofing attack).
3237 [Ben Laurie (CHATS)]
3239 *) Fix various buffers to be large enough for hex/decimal
3240 representations in a platform independent manner.
3241 [Ben Laurie (CHATS)]
3243 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3244 resizing buffers containing secrets, and use where appropriate.
3245 [Ben Laurie (CHATS)]
3247 *) Add BIO_indent() to avoid much slightly worrying code to do
3249 [Ben Laurie (CHATS)]
3251 *) Convert sprintf()/BIO_puts() to BIO_printf().
3252 [Ben Laurie (CHATS)]
3254 *) buffer_gets() could terminate with the buffer only half
3256 [Ben Laurie (CHATS)]
3258 *) Add assertions to prevent user-supplied crypto functions from
3259 overflowing internal buffers by having large block sizes, etc.
3260 [Ben Laurie (CHATS)]
3262 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3264 [Ben Laurie (CHATS)]
3266 *) Eliminate unused copy of key in RC4.
3267 [Ben Laurie (CHATS)]
3269 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3270 [Ben Laurie (CHATS)]
3272 *) Fix off-by-one error in EGD path.
3273 [Ben Laurie (CHATS)]
3275 *) If RANDFILE path is too long, ignore instead of truncating.
3276 [Ben Laurie (CHATS)]
3278 *) Eliminate unused and incorrectly sized X.509 structure
3280 [Ben Laurie (CHATS)]
3282 *) Eliminate unused and dangerous function knumber().
3283 [Ben Laurie (CHATS)]
3285 *) Eliminate unused and dangerous structure, KSSL_ERR.
3286 [Ben Laurie (CHATS)]
3288 *) Protect against overlong session ID context length in an encoded
3289 session object. Since these are local, this does not appear to be
3291 [Ben Laurie (CHATS)]
3293 *) Change from security patch (see 0.9.6e below) that did not affect
3294 the 0.9.6 release series:
3296 Remote buffer overflow in SSL3 protocol - an attacker could
3297 supply an oversized master key in Kerberos-enabled versions.
3299 [Ben Laurie (CHATS)]
3301 *) Change the SSL kerb5 codes to match RFC 2712.
3304 *) Make -nameopt work fully for req and add -reqopt switch.
3305 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3307 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3308 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3310 *) Make sure tests can be performed even if the corresponding algorithms
3311 have been removed entirely. This was also the last step to make
3312 OpenSSL compilable with DJGPP under all reasonable conditions.
3313 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3315 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3316 to allow version independent disabling of normally unselected ciphers,
3317 which may be activated as a side-effect of selecting a single cipher.
3319 (E.g., cipher list string "RSA" enables ciphersuites that are left
3320 out of "ALL" because they do not provide symmetric encryption.
3321 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3322 [Lutz Jaenicke, Bodo Moeller]
3324 *) Add appropriate support for separate platform-dependent build
3325 directories. The recommended way to make a platform-dependent
3326 build directory is the following (tested on Linux), maybe with
3329 # Place yourself outside of the OpenSSL source tree. In
3330 # this example, the environment variable OPENSSL_SOURCE
3331 # is assumed to contain the absolute OpenSSL source directory.
3332 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3333 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3334 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3335 mkdir -p `dirname $F`
3336 ln -s $OPENSSL_SOURCE/$F $F
3339 To be absolutely sure not to disturb the source tree, a "make clean"
3340 is a good thing. If it isn't successfull, don't worry about it,
3341 it probably means the source directory is very clean.
3344 *) Make sure any ENGINE control commands make local copies of string
3345 pointers passed to them whenever necessary. Otherwise it is possible
3346 the caller may have overwritten (or deallocated) the original string
3347 data when a later ENGINE operation tries to use the stored values.
3348 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3350 *) Improve diagnostics in file reading and command-line digests.
3351 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3353 *) Add AES modes CFB and OFB to the object database. Correct an
3354 error in AES-CFB decryption.
3357 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3358 allows existing EVP_CIPHER_CTX structures to be reused after
3359 calling EVP_*Final(). This behaviour is used by encryption
3360 BIOs and some applications. This has the side effect that
3361 applications must explicitly clean up cipher contexts with
3362 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3365 *) Check the values of dna and dnb in bn_mul_recursive before calling
3366 bn_mul_comba (a non zero value means the a or b arrays do not contain
3367 n2 elements) and fallback to bn_mul_normal if either is not zero.
3370 *) Fix escaping of non-ASCII characters when using the -subj option
3371 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3374 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3375 form for "surname", serialNumber has no short form.
3376 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3377 therefore remove "mail" short name for "internet 7".
3378 The OID for unique identifiers in X509 certificates is
3379 x500UniqueIdentifier, not uniqueIdentifier.
3380 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3383 *) Add an "init" command to the ENGINE config module and auto initialize
3384 ENGINEs. Without any "init" command the ENGINE will be initialized
3385 after all ctrl commands have been executed on it. If init=1 the
3386 ENGINE is initailized at that point (ctrls before that point are run
3387 on the uninitialized ENGINE and after on the initialized one). If
3388 init=0 then the ENGINE will not be iniatialized at all.
3391 *) Fix the 'app_verify_callback' interface so that the user-defined
3392 argument is actually passed to the callback: In the
3393 SSL_CTX_set_cert_verify_callback() prototype, the callback
3394 declaration has been changed from
3397 int (*cb)(X509_STORE_CTX *,void *);
3398 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3399 i=s->ctx->app_verify_callback(&ctx)
3400 has been changed into
3401 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3403 To update applications using SSL_CTX_set_cert_verify_callback(),
3404 a dummy argument can be added to their callback functions.
3405 [D. K. Smetters <smetters@parc.xerox.com>]
3407 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3408 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3410 *) Add and OPENSSL_LOAD_CONF define which will cause
3411 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3412 This allows older applications to transparently support certain
3413 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3414 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3415 load the config file and OPENSSL_add_all_algorithms_conf() which will
3416 always load it have also been added.
3419 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3420 Adjust NIDs and EVP layer.
3421 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3423 *) Config modules support in openssl utility.
3425 Most commands now load modules from the config file,
3426 though in a few (such as version) this isn't done
3427 because it couldn't be used for anything.
3429 In the case of ca and req the config file used is
3430 the same as the utility itself: that is the -config
3431 command line option can be used to specify an
3435 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3436 use "openssl_conf" if filename is NULL use default openssl config file.
3439 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3440 config section name. Add a new flag to tolerate a missing config file
3441 and move code to CONF_modules_load_file().
3444 *) Support for crypto accelerator cards from Accelerated Encryption
3445 Processing, www.aep.ie. (Use engine 'aep')
3446 The support was copied from 0.9.6c [engine] and adapted/corrected
3447 to work with the new engine framework.
3448 [AEP Inc. and Richard Levitte]
3450 *) Support for SureWare crypto accelerator cards from Baltimore
3451 Technologies. (Use engine 'sureware')
3452 The support was copied from 0.9.6c [engine] and adapted
3453 to work with the new engine framework.
3456 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3457 make the newer ENGINE framework commands for the CHIL engine work.
3458 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3460 *) Make it possible to produce shared libraries on ReliantUNIX.
3461 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3463 *) Add the configuration target debug-linux-ppro.
3464 Make 'openssl rsa' use the general key loading routines
3465 implemented in apps.c, and make those routines able to
3466 handle the key format FORMAT_NETSCAPE and the variant
3468 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3470 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3471 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3473 *) Add -keyform to rsautl, and document -engine.
3474 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3476 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3477 BIO_R_NO_SUCH_FILE error code rather than the generic
3478 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3481 *) Add new functions
3483 ERR_peek_last_error_line
3484 ERR_peek_last_error_line_data.
3485 These are similar to
3488 ERR_peek_error_line_data,
3489 but report on the latest error recorded rather than the first one
3490 still in the error queue.
3491 [Ben Laurie, Bodo Moeller]
3493 *) default_algorithms option in ENGINE config module. This allows things
3495 default_algorithms = ALL
3496 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3499 *) Prelminary ENGINE config module.
3502 *) New experimental application configuration code.
3505 *) Change the AES code to follow the same name structure as all other
3506 symmetric ciphers, and behave the same way. Move everything to
3507 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3508 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3510 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3511 [Ben Laurie and Theo de Raadt]
3513 *) Add option to output public keys in req command.
3514 [Massimiliano Pala madwolf@openca.org]
3516 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3517 (up to about 10% better than before for P-192 and P-224).
3520 *) New functions/macros
3522 SSL_CTX_set_msg_callback(ctx, cb)
3523 SSL_CTX_set_msg_callback_arg(ctx, arg)
3524 SSL_set_msg_callback(ssl, cb)
3525 SSL_set_msg_callback_arg(ssl, arg)
3527 to request calling a callback function
3529 void cb(int write_p, int version, int content_type,
3530 const void *buf, size_t len, SSL *ssl, void *arg)
3532 whenever a protocol message has been completely received
3533 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3534 protocol version according to which the SSL library interprets
3535 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3536 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3537 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3538 specification (change_cipher_spec(20), alert(21), handshake(22)).
3539 'buf' and 'len' point to the actual message, 'ssl' to the
3540 SSL object, and 'arg' is the application-defined value set by
3541 SSL[_CTX]_set_msg_callback_arg().
3543 'openssl s_client' and 'openssl s_server' have new '-msg' options
3544 to enable a callback that displays all protocol messages.
3547 *) Change the shared library support so shared libraries are built as
3548 soon as the corresponding static library is finished, and thereby get
3549 openssl and the test programs linked against the shared library.
3550 This still only happens when the keyword "shard" has been given to
3551 the configuration scripts.
3553 NOTE: shared library support is still an experimental thing, and
3554 backward binary compatibility is still not guaranteed.
3555 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3557 *) Add support for Subject Information Access extension.
3558 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3560 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3561 additional bytes when new memory had to be allocated, not just
3562 when reusing an existing buffer.
3565 *) New command line and configuration option 'utf8' for the req command.
3566 This allows field values to be specified as UTF8 strings.
3569 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3570 runs for the former and machine-readable output for the latter.
3573 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3574 of the e-mail address in the DN (i.e., it will go into a certificate
3575 extension only). The new configuration file option 'email_in_dn = no'
3576 has the same effect.
3577 [Massimiliano Pala madwolf@openca.org]
3579 *) Change all functions with names starting with des_ to be starting
3580 with DES_ instead. Add wrappers that are compatible with libdes,
3581 but are named _ossl_old_des_*. Finally, add macros that map the
3582 des_* symbols to the corresponding _ossl_old_des_* if libdes
3583 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3584 desired, the des_* symbols will be mapped to DES_*, with one
3587 Since we provide two compatibility mappings, the user needs to
3588 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3589 compatibility is desired. The default (i.e., when that macro
3590 isn't defined) is OpenSSL 0.9.6c compatibility.
3592 There are also macros that enable and disable the support of old
3593 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3594 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3595 are defined, the default will apply: to support the old des routines.
3597 In either case, one must include openssl/des.h to get the correct
3598 definitions. Do not try to just include openssl/des_old.h, that
3601 NOTE: This is a major break of an old API into a new one. Software
3602 authors are encouraged to switch to the DES_ style functions. Some
3603 time in the future, des_old.h and the libdes compatibility functions
3604 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3605 default), and then completely removed.
3608 *) Test for certificates which contain unsupported critical extensions.
3609 If such a certificate is found during a verify operation it is
3610 rejected by default: this behaviour can be overridden by either
3611 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3612 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3613 X509_supported_extension() has also been added which returns 1 if a
3614 particular extension is supported.
3617 *) Modify the behaviour of EVP cipher functions in similar way to digests
3618 to retain compatibility with existing code.
3621 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3622 compatibility with existing code. In particular the 'ctx' parameter does
3623 not have to be to be initialized before the call to EVP_DigestInit() and
3624 it is tidied up after a call to EVP_DigestFinal(). New function
3625 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3626 EVP_MD_CTX_copy() changed to not require the destination to be
3627 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3628 requires the destination to be valid.
3630 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3631 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3634 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3635 so that complete 'Handshake' protocol structures are kept in memory
3636 instead of overwriting 'msg_type' and 'length' with 'body' data.
3639 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3640 [Massimo Santin via Richard Levitte]
3642 *) Major restructuring to the underlying ENGINE code. This includes
3643 reduction of linker bloat, separation of pure "ENGINE" manipulation
3644 (initialisation, etc) from functionality dealing with implementations
3645 of specific crypto iterfaces. This change also introduces integrated
3646 support for symmetric ciphers and digest implementations - so ENGINEs
3647 can now accelerate these by providing EVP_CIPHER and EVP_MD
3648 implementations of their own. This is detailed in crypto/engine/README
3649 as it couldn't be adequately described here. However, there are a few
3650 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3651 were changed in the original introduction of ENGINE code have now
3652 reverted back - the hooking from this code to ENGINE is now a good
3653 deal more passive and at run-time, operations deal directly with
3654 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3655 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3656 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3657 they were not being used by the framework as there is no concept of a
3658 BIGNUM_METHOD and they could not be generalised to the new
3659 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3660 ENGINE_cpy() has been removed as it cannot be consistently defined in
3664 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3667 *) Change mkdef.pl to sort symbols that get the same entry number,
3668 and make sure the automatically generated functions ERR_load_*
3669 become part of libeay.num as well.
3672 *) New function SSL_renegotiate_pending(). This returns true once
3673 renegotiation has been requested (either SSL_renegotiate() call
3674 or HelloRequest/ClientHello receveived from the peer) and becomes
3675 false once a handshake has been completed.
3676 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3677 sends a HelloRequest, but does not ensure that a handshake takes
3678 place. SSL_renegotiate_pending() is useful for checking if the
3679 client has followed the request.)
3682 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3683 By default, clients may request session resumption even during
3684 renegotiation (if session ID contexts permit); with this option,
3685 session resumption is possible only in the first handshake.
3687 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3688 more bits available for options that should not be part of
3689 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3692 *) Add some demos for certificate and certificate request creation.
3695 *) Make maximum certificate chain size accepted from the peer application
3696 settable (SSL*_get/set_max_cert_list()), as proposed by
3697 "Douglas E. Engert" <deengert@anl.gov>.
3700 *) Add support for shared libraries for Unixware-7
3701 (Boyd Lynn Gerber <gerberb@zenez.com>).
3704 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3705 be done prior to destruction. Use this to unload error strings from
3706 ENGINEs that load their own error strings. NB: This adds two new API
3707 functions to "get" and "set" this destroy handler in an ENGINE.
3710 *) Alter all existing ENGINE implementations (except "openssl" and
3711 "openbsd") to dynamically instantiate their own error strings. This
3712 makes them more flexible to be built both as statically-linked ENGINEs
3713 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3714 Also, add stub code to each that makes building them as self-contained
3715 shared-libraries easier (see README.ENGINE).
3718 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3719 implementations into applications that are completely implemented in
3720 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3721 commands that can be used to configure what shared-library to load and
3722 to control aspects of the way it is handled. Also, made an update to
3723 the README.ENGINE file that brings its information up-to-date and
3724 provides some information and instructions on the "dynamic" ENGINE
3725 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3728 *) Make it possible to unload ranges of ERR strings with a new
3729 "ERR_unload_strings" function.
3732 *) Add a copy() function to EVP_MD.
3735 *) Make EVP_MD routines take a context pointer instead of just the
3736 md_data void pointer.
3739 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3740 that the digest can only process a single chunk of data
3741 (typically because it is provided by a piece of
3742 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3743 is only going to provide a single chunk of data, and hence the
3744 framework needn't accumulate the data for oneshot drivers.
3747 *) As with "ERR", make it possible to replace the underlying "ex_data"
3748 functions. This change also alters the storage and management of global
3749 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3750 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3751 index counters. The API functions that use this state have been changed
3752 to take a "class_index" rather than pointers to the class's local STACK
3753 and counter, and there is now an API function to dynamically create new
3754 classes. This centralisation allows us to (a) plug a lot of the
3755 thread-safety problems that existed, and (b) makes it possible to clean
3756 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3757 such data would previously have always leaked in application code and
3758 workarounds were in place to make the memory debugging turn a blind eye
3759 to it. Application code that doesn't use this new function will still
3760 leak as before, but their memory debugging output will announce it now
3761 rather than letting it slide.
3763 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3764 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3765 has a return value to indicate success or failure.
3768 *) Make it possible to replace the underlying "ERR" functions such that the
3769 global state (2 LHASH tables and 2 locks) is only used by the "default"
3770 implementation. This change also adds two functions to "get" and "set"
3771 the implementation prior to it being automatically set the first time
3772 any other ERR function takes place. Ie. an application can call "get",
3773 pass the return value to a module it has just loaded, and that module
3774 can call its own "set" function using that value. This means the
3775 module's "ERR" operations will use (and modify) the error state in the
3776 application and not in its own statically linked copy of OpenSSL code.
3779 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3780 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3781 the operation, and provides a more encapsulated way for external code
3782 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3783 to use these functions rather than manually incrementing the counts.
3785 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3788 *) Add EVP test program.
3791 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3794 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3795 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3796 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3797 These allow a CRL to be built without having to access X509_CRL fields
3798 directly. Modify 'ca' application to use new functions.
3801 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3802 bug workarounds. Rollback attack detection is a security feature.
3803 The problem will only arise on OpenSSL servers when TLSv1 is not
3804 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3805 Software authors not wanting to support TLSv1 will have special reasons
3806 for their choice and can explicitly enable this option.
3807 [Bodo Moeller, Lutz Jaenicke]
3809 *) Rationalise EVP so it can be extended: don't include a union of
3810 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3811 (similar to those existing for EVP_CIPHER_CTX).
3816 EVP_MD_CTX_init(&md); /* new function call */
3817 EVP_DigestInit(&md, EVP_sha1());
3818 EVP_DigestUpdate(&md, in, len);
3819 EVP_DigestFinal(&md, out, NULL);
3820 EVP_MD_CTX_cleanup(&md); /* new function call */
3824 *) Make DES key schedule conform to the usual scheme, as well as
3825 correcting its structure. This means that calls to DES functions
3826 now have to pass a pointer to a des_key_schedule instead of a
3827 plain des_key_schedule (which was actually always a pointer
3830 des_key_schedule ks;
3832 des_set_key_checked(..., &ks);
3833 des_ncbc_encrypt(..., &ks, ...);
3835 (Note that a later change renames 'des_...' into 'DES_...'.)
3838 *) Initial reduction of linker bloat: the use of some functions, such as
3839 PEM causes large amounts of unused functions to be linked in due to
3840 poor organisation. For example pem_all.c contains every PEM function
3841 which has a knock on effect of linking in large amounts of (unused)
3842 ASN1 code. Grouping together similar functions and splitting unrelated
3843 functions prevents this.
3846 *) Cleanup of EVP macros.
3849 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3850 correct _ecb suffix.
3853 *) Add initial OCSP responder support to ocsp application. The
3854 revocation information is handled using the text based index
3855 use by the ca application. The responder can either handle
3856 requests generated internally, supplied in files (for example
3857 via a CGI script) or using an internal minimal server.
3860 *) Add configuration choices to get zlib compression for TLS.
3863 *) Changes to Kerberos SSL for RFC 2712 compliance:
3864 1. Implemented real KerberosWrapper, instead of just using
3865 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3866 2. Implemented optional authenticator field of KerberosWrapper.
3868 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3869 and authenticator structs; see crypto/krb5/.
3871 Generalized Kerberos calls to support multiple Kerberos libraries.
3872 [Vern Staats <staatsvr@asc.hpc.mil>,
3873 Jeffrey Altman <jaltman@columbia.edu>
3874 via Richard Levitte]
3876 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3877 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3878 values for each of the key sizes rather than having just
3879 parameters (and 'speed' generating keys each time).
3882 *) Speed up EVP routines.
3885 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3886 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3887 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3888 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3890 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3891 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3892 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3895 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3897 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3900 *) Added the OS2-EMX target.
3901 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3903 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3904 to support NCONF routines in extension code. New function CONF_set_nconf()
3905 to allow functions which take an NCONF to also handle the old LHASH
3906 structure: this means that the old CONF compatible routines can be
3907 retained (in particular wrt extensions) without having to duplicate the
3908 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3911 *) Enhance the general user interface with mechanisms for inner control
3912 and with possibilities to have yes/no kind of prompts.
3915 *) Change all calls to low level digest routines in the library and
3916 applications to use EVP. Add missing calls to HMAC_cleanup() and
3917 don't assume HMAC_CTX can be copied using memcpy().
3918 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3920 *) Add the possibility to control engines through control names but with
3921 arbitrary arguments instead of just a string.
3922 Change the key loaders to take a UI_METHOD instead of a callback
3923 function pointer. NOTE: this breaks binary compatibility with earlier
3924 versions of OpenSSL [engine].
3925 Adapt the nCipher code for these new conditions and add a card insertion
3929 *) Enhance the general user interface with mechanisms to better support
3930 dialog box interfaces, application-defined prompts, the possibility
3931 to use defaults (for example default passwords from somewhere else)
3932 and interrupts/cancellations.
3935 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3936 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3939 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3940 tidy up some unnecessarily weird code in 'sk_new()').
3941 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3943 *) Change the key loading routines for ENGINEs to use the same kind
3944 callback (pem_password_cb) as all other routines that need this
3948 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3949 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3950 than this minimum value is recommended.
3953 *) New random seeder for OpenVMS, using the system process statistics
3954 that are easily reachable.
3957 *) Windows apparently can't transparently handle global
3958 variables defined in DLLs. Initialisations such as:
3960 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3962 wont compile. This is used by the any applications that need to
3963 declare their own ASN1 modules. This was fixed by adding the option
3964 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3965 needed for static libraries under Win32.
3968 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3969 setting of purpose and trust fields. New X509_STORE trust and
3970 purpose functions and tidy up setting in other SSL functions.
3973 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3974 structure. These are inherited by X509_STORE_CTX when it is
3975 initialised. This allows various defaults to be set in the
3976 X509_STORE structure (such as flags for CRL checking and custom
3977 purpose or trust settings) for functions which only use X509_STORE_CTX
3978 internally such as S/MIME.
3980 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3981 trust settings if they are not set in X509_STORE. This allows X509_STORE
3982 purposes and trust (in S/MIME for example) to override any set by default.
3984 Add command line options for CRL checking to smime, s_client and s_server
3988 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3989 are set then the CRL is looked up in the X509_STORE structure and
3990 its validity and signature checked, then if the certificate is found
3991 in the CRL the verify fails with a revoked error.
3993 Various new CRL related callbacks added to X509_STORE_CTX structure.
3995 Command line options added to 'verify' application to support this.
3997 This needs some additional work, such as being able to handle multiple
3998 CRLs with different times, extension based lookup (rather than just
3999 by subject name) and ultimately more complete V2 CRL extension
4003 *) Add a general user interface API (crypto/ui/). This is designed
4004 to replace things like des_read_password and friends (backward
4005 compatibility functions using this new API are provided).
4006 The purpose is to remove prompting functions from the DES code
4007 section as well as provide for prompting through dialog boxes in
4008 a window system and the like.
4011 *) Add "ex_data" support to ENGINE so implementations can add state at a
4012 per-structure level rather than having to store it globally.
4015 *) Make it possible for ENGINE structures to be copied when retrieved by
4016 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4017 This causes the "original" ENGINE structure to act like a template,
4018 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4019 operational state can be localised to each ENGINE structure, despite the
4020 fact they all share the same "methods". New ENGINE structures returned in
4021 this case have no functional references and the return value is the single
4022 structural reference. This matches the single structural reference returned
4023 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4027 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4028 needs to match any other type at all we need to manually clear the
4032 *) Changes to the "openssl engine" utility to include;
4033 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4034 about an ENGINE's available control commands.
4035 - executing control commands from command line arguments using the
4036 '-pre' and '-post' switches. '-post' is only used if '-t' is
4037 specified and the ENGINE is successfully initialised. The syntax for
4038 the individual commands are colon-separated, for example;
4039 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4042 *) New dynamic control command support for ENGINEs. ENGINEs can now
4043 declare their own commands (numbers), names (strings), descriptions,
4044 and input types for run-time discovery by calling applications. A
4045 subset of these commands are implicitly classed as "executable"
4046 depending on their input type, and only these can be invoked through
4047 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4048 can be based on user input, config files, etc). The distinction is
4049 that "executable" commands cannot return anything other than a boolean
4050 result and can only support numeric or string input, whereas some
4051 discoverable commands may only be for direct use through
4052 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4053 pointers, or other custom uses. The "executable" commands are to
4054 support parameterisations of ENGINE behaviour that can be
4055 unambiguously defined by ENGINEs and used consistently across any
4056 OpenSSL-based application. Commands have been added to all the
4057 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4058 control over shared-library paths without source code alterations.
4061 *) Changed all ENGINE implementations to dynamically allocate their
4062 ENGINEs rather than declaring them statically. Apart from this being
4063 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4064 this also allows the implementations to compile without using the
4065 internal engine_int.h header.
4068 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4069 'const' value. Any code that should be able to modify a RAND_METHOD
4070 should already have non-const pointers to it (ie. they should only
4071 modify their own ones).
4074 *) Made a variety of little tweaks to the ENGINE code.
4075 - "atalla" and "ubsec" string definitions were moved from header files
4076 to C code. "nuron" string definitions were placed in variables
4077 rather than hard-coded - allowing parameterisation of these values
4078 later on via ctrl() commands.
4079 - Removed unused "#if 0"'d code.
4080 - Fixed engine list iteration code so it uses ENGINE_free() to release
4081 structural references.
4082 - Constified the RAND_METHOD element of ENGINE structures.
4083 - Constified various get/set functions as appropriate and added
4084 missing functions (including a catch-all ENGINE_cpy that duplicates
4085 all ENGINE values onto a new ENGINE except reference counts/state).
4086 - Removed NULL parameter checks in get/set functions. Setting a method
4087 or function to NULL is a way of cancelling out a previously set
4088 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4089 and doesn't justify the extra error symbols and code.
4090 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4091 flags from engine_int.h to engine.h.
4092 - Changed prototypes for ENGINE handler functions (init(), finish(),
4093 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4096 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4097 to the algorithm using long division. The binary algorithm can be
4098 used only if the modulus is odd. On 32-bit systems, it is faster
4099 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4100 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4101 up to 450 bits. In 64-bit environments, the binary algorithm
4102 appears to be advantageous for much longer moduli; here we use it
4103 for moduli up to 2048 bits.
4106 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4107 could not support the combine flag in choice fields.
4110 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4111 extensions from a certificate request to the certificate.
4114 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4115 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4116 file: this allows the display of the certificate about to be
4117 signed to be customised, to allow certain fields to be included
4118 or excluded and extension details. The old system didn't display
4119 multicharacter strings properly, omitted fields not in the policy
4120 and couldn't display additional details such as extensions.
4123 *) Function EC_POINTs_mul for multiple scalar multiplication
4124 of an arbitrary number of elliptic curve points
4125 \sum scalars[i]*points[i],
4126 optionally including the generator defined for the EC_GROUP:
4127 scalar*generator + \sum scalars[i]*points[i].
4129 EC_POINT_mul is a simple wrapper function for the typical case
4130 that the point list has just one item (besides the optional
4134 *) First EC_METHODs for curves over GF(p):
4136 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4137 operations and provides various method functions that can also
4138 operate with faster implementations of modular arithmetic.
4140 EC_GFp_mont_method() reuses most functions that are part of
4141 EC_GFp_simple_method, but uses Montgomery arithmetic.
4143 [Bodo Moeller; point addition and point doubling
4144 implementation directly derived from source code provided by
4145 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4147 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4148 crypto/ec/ec_lib.c):
4150 Curves are EC_GROUP objects (with an optional group generator)
4151 based on EC_METHODs that are built into the library.
4153 Points are EC_POINT objects based on EC_GROUP objects.
4155 Most of the framework would be able to handle curves over arbitrary
4156 finite fields, but as there are no obvious types for fields other
4157 than GF(p), some functions are limited to that for now.
4160 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4161 that the file contains a complete HTTP response.
4164 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4165 change the def and num file printf format specifier from "%-40sXXX"
4166 to "%-39s XXX". The latter will always guarantee a space after the
4167 field while the former will cause them to run together if the field
4168 is 40 of more characters long.
4171 *) Constify the cipher and digest 'method' functions and structures
4172 and modify related functions to take constant EVP_MD and EVP_CIPHER
4176 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4177 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4180 *) Modify EVP_Digest*() routines so they now return values. Although the
4181 internal software routines can never fail additional hardware versions
4185 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4187 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4188 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4191 ERR_R_NESTED_ASN1_ERROR
4193 ERR_R_MISSING_ASN1_EOS
4194 were 4 .. 9, conflicting with
4195 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4197 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4198 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4200 Add new error code 'ERR_R_INTERNAL_ERROR'.
4203 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4207 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4208 sets the subject name for a new request or supersedes the
4209 subject name in a given request. Formats that can be parsed are
4210 'CN=Some Name, OU=myOU, C=IT'
4212 'CN=Some Name/OU=myOU/C=IT'.
4214 Add options '-batch' and '-verbose' to 'openssl req'.
4215 [Massimiliano Pala <madwolf@hackmasters.net>]
4217 *) Introduce the possibility to access global variables through
4218 functions on platform were that's the best way to handle exporting
4219 global variables in shared libraries. To enable this functionality,
4220 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4221 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4222 is normally done by Configure or something similar).
4224 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4225 in the source file (foo.c) like this:
4227 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4228 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4230 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4231 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4233 OPENSSL_DECLARE_GLOBAL(int,foo);
4234 #define foo OPENSSL_GLOBAL_REF(foo)
4235 OPENSSL_DECLARE_GLOBAL(double,bar);
4236 #define bar OPENSSL_GLOBAL_REF(bar)
4238 The #defines are very important, and therefore so is including the
4239 header file everywhere where the defined globals are used.
4241 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4242 of ASN.1 items, but that structure is a bit different.
4244 The largest change is in util/mkdef.pl which has been enhanced with
4245 better and easier to understand logic to choose which symbols should
4246 go into the Windows .def files as well as a number of fixes and code
4247 cleanup (among others, algorithm keywords are now sorted
4248 lexicographically to avoid constant rewrites).
4251 *) In BN_div() keep a copy of the sign of 'num' before writing the
4252 result to 'rm' because if rm==num the value will be overwritten
4253 and produce the wrong result if 'num' is negative: this caused
4254 problems with BN_mod() and BN_nnmod().
4257 *) Function OCSP_request_verify(). This checks the signature on an
4258 OCSP request and verifies the signer certificate. The signer
4259 certificate is just checked for a generic purpose and OCSP request
4263 *) Add OCSP_check_validity() function to check the validity of OCSP
4264 responses. OCSP responses are prepared in real time and may only
4265 be a few seconds old. Simply checking that the current time lies
4266 between thisUpdate and nextUpdate max reject otherwise valid responses
4267 caused by either OCSP responder or client clock inaccuracy. Instead
4268 we allow thisUpdate and nextUpdate to fall within a certain period of
4269 the current time. The age of the response can also optionally be
4270 checked. Two new options -validity_period and -status_age added to
4274 *) If signature or public key algorithm is unrecognized print out its
4275 OID rather that just UNKNOWN.
4278 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4279 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4280 ID to be generated from the issuer certificate alone which can then be
4281 passed to OCSP_id_issuer_cmp().
4284 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4285 ASN1 modules to export functions returning ASN1_ITEM pointers
4286 instead of the ASN1_ITEM structures themselves. This adds several
4287 new macros which allow the underlying ASN1 function/structure to
4288 be accessed transparently. As a result code should not use ASN1_ITEM
4289 references directly (such as &X509_it) but instead use the relevant
4290 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4291 use of the new ASN1 code on platforms where exporting structures
4292 is problematical (for example in shared libraries) but exporting
4293 functions returning pointers to structures is not.
4296 *) Add support for overriding the generation of SSL/TLS session IDs.
4297 These callbacks can be registered either in an SSL_CTX or per SSL.
4298 The purpose of this is to allow applications to control, if they wish,
4299 the arbitrary values chosen for use as session IDs, particularly as it
4300 can be useful for session caching in multiple-server environments. A
4301 command-line switch for testing this (and any client code that wishes
4302 to use such a feature) has been added to "s_server".
4303 [Geoff Thorpe, Lutz Jaenicke]
4305 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4306 of the form '#if defined(...) || defined(...) || ...' and
4307 '#if !defined(...) && !defined(...) && ...'. This also avoids
4308 the growing number of special cases it was previously handling.
4311 *) Make all configuration macros available for application by making
4312 sure they are available in opensslconf.h, by giving them names starting
4313 with "OPENSSL_" to avoid conflicts with other packages and by making
4314 sure e_os2.h will cover all platform-specific cases together with
4316 Additionally, it is now possible to define configuration/platform-
4317 specific names (called "system identities"). In the C code, these
4318 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4319 macro with the name beginning with "OPENSSL_SYS_", which is determined
4320 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4324 *) New option -set_serial to 'req' and 'x509' this allows the serial
4325 number to use to be specified on the command line. Previously self
4326 signed certificates were hard coded with serial number 0 and the
4327 CA options of 'x509' had to use a serial number in a file which was
4331 *) New options to 'ca' utility to support V2 CRL entry extensions.
4332 Currently CRL reason, invalidity date and hold instruction are
4333 supported. Add new CRL extensions to V3 code and some new objects.
4336 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4337 disable standard block padding (aka PKCS#5 padding) in the EVP
4338 API, which was previously mandatory. This means that the data is
4339 not padded in any way and so the total length much be a multiple
4340 of the block size, otherwise an error occurs.
4343 *) Initial (incomplete) OCSP SSL support.
4346 *) New function OCSP_parse_url(). This splits up a URL into its host,
4347 port and path components: primarily to parse OCSP URLs. New -url
4348 option to ocsp utility.
4351 *) New nonce behavior. The return value of OCSP_check_nonce() now
4352 reflects the various checks performed. Applications can decide
4353 whether to tolerate certain situations such as an absent nonce
4354 in a response when one was present in a request: the ocsp application
4355 just prints out a warning. New function OCSP_add1_basic_nonce()
4356 this is to allow responders to include a nonce in a response even if
4357 the request is nonce-less.
4360 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4361 skipped when using openssl x509 multiple times on a single input file,
4362 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4365 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4366 set string type: to handle setting ASN1_TIME structures. Fix ca
4367 utility to correctly initialize revocation date of CRLs.
4370 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4371 the clients preferred ciphersuites and rather use its own preferences.
4372 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4373 Internet Explorer by ensuring unchanged hash method during stepup.
4374 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4377 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4378 to aes and add a new 'exist' option to print out symbols that don't
4382 *) Additional options to ocsp utility to allow flags to be set and
4383 additional certificates supplied.
4386 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4387 OCSP client a number of certificate to only verify the response
4391 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4392 handle the new API. Currently only ECB, CBC modes supported. Add new
4395 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4396 Encryption Standard (AES) Ciphersuites for Transport Layer
4397 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4398 not enabled by default and were not part of the "ALL" ciphersuite
4399 alias because they were not yet official; they could be
4400 explicitly requested by specifying the "AESdraft" ciphersuite
4401 group alias. In the final release of OpenSSL 0.9.7, the group
4402 alias is called "AES" and is part of "ALL".)
4403 [Ben Laurie, Steve Henson, Bodo Moeller]
4405 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4406 request to response.
4409 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4410 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4411 extract information from a certificate request. OCSP_response_create()
4412 creates a response and optionally adds a basic response structure.
4413 OCSP_basic_add1_status() adds a complete single response to a basic
4414 response and returns the OCSP_SINGLERESP structure just added (to allow
4415 extensions to be included for example). OCSP_basic_add1_cert() adds a
4416 certificate to a basic response and OCSP_basic_sign() signs a basic
4417 response with various flags. New helper functions ASN1_TIME_check()
4418 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4419 (converts ASN1_TIME to GeneralizedTime).
4422 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4423 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4424 structure from a certificate. X509_pubkey_digest() digests the public_key
4425 contents: this is used in various key identifiers.
4428 *) Make sk_sort() tolerate a NULL argument.
4429 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4431 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4432 passed by the function are trusted implicitly. If any of them signed the
4433 response then it is assumed to be valid and is not verified.
4436 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4437 to data. This was previously part of the PKCS7 ASN1 code. This
4438 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4439 [Steve Henson, reported by Kenneth R. Robinette
4440 <support@securenetterm.com>]
4442 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4443 routines: without these tracing memory leaks is very painful.
4444 Fix leaks in PKCS12 and PKCS7 routines.
4447 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4448 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4449 effectively meant GeneralizedTime would never be used. Now it
4450 is initialised to -1 but X509_time_adj() now has to check the value
4451 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4452 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4453 [Steve Henson, reported by Kenneth R. Robinette
4454 <support@securenetterm.com>]
4456 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4457 result in a zero length in the ASN1_INTEGER structure which was
4458 not consistent with the structure when d2i_ASN1_INTEGER() was used
4459 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4460 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4461 where it did not print out a minus for negative ASN1_INTEGER.
4464 *) Add summary printout to ocsp utility. The various functions which
4465 convert status values to strings have been renamed to:
4466 OCSP_response_status_str(), OCSP_cert_status_str() and
4467 OCSP_crl_reason_str() and are no longer static. New options
4468 to verify nonce values and to disable verification. OCSP response
4469 printout format cleaned up.
4472 *) Add additional OCSP certificate checks. These are those specified
4473 in RFC2560. This consists of two separate checks: the CA of the
4474 certificate being checked must either be the OCSP signer certificate
4475 or the issuer of the OCSP signer certificate. In the latter case the
4476 OCSP signer certificate must contain the OCSP signing extended key
4477 usage. This check is performed by attempting to match the OCSP
4478 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4479 in the OCSP_CERTID structures of the response.
4482 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4483 and related routines. This uses the standard OpenSSL certificate
4484 verify routines to perform initial checks (just CA validity) and
4485 to obtain the certificate chain. Then additional checks will be
4486 performed on the chain. Currently the root CA is checked to see
4487 if it is explicitly trusted for OCSP signing. This is used to set
4488 a root CA as a global signing root: that is any certificate that
4489 chains to that CA is an acceptable OCSP signing certificate.
4492 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4493 extensions from a separate configuration file.
4494 As when reading extensions from the main configuration file,
4495 the '-extensions ...' option may be used for specifying the
4497 [Massimiliano Pala <madwolf@comune.modena.it>]
4499 *) New OCSP utility. Allows OCSP requests to be generated or
4500 read. The request can be sent to a responder and the output
4501 parsed, outputed or printed in text form. Not complete yet:
4502 still needs to check the OCSP response validity.
4505 *) New subcommands for 'openssl ca':
4506 'openssl ca -status <serial>' prints the status of the cert with
4507 the given serial number (according to the index file).
4508 'openssl ca -updatedb' updates the expiry status of certificates
4510 [Massimiliano Pala <madwolf@comune.modena.it>]
4512 *) New '-newreq-nodes' command option to CA.pl. This is like
4513 '-newreq', but calls 'openssl req' with the '-nodes' option
4514 so that the resulting key is not encrypted.
4515 [Damien Miller <djm@mindrot.org>]
4517 *) New configuration for the GNU Hurd.
4518 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4520 *) Initial code to implement OCSP basic response verify. This
4521 is currently incomplete. Currently just finds the signer's
4522 certificate and verifies the signature on the response.
4525 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4526 value of OPENSSLDIR. This is available via the new '-d' option
4527 to 'openssl version', and is also included in 'openssl version -a'.
4530 *) Allowing defining memory allocation callbacks that will be given
4531 file name and line number information in additional arguments
4532 (a const char* and an int). The basic functionality remains, as
4533 well as the original possibility to just replace malloc(),
4534 realloc() and free() by functions that do not know about these
4535 additional arguments. To register and find out the current
4536 settings for extended allocation functions, the following
4537 functions are provided:
4539 CRYPTO_set_mem_ex_functions
4540 CRYPTO_set_locked_mem_ex_functions
4541 CRYPTO_get_mem_ex_functions
4542 CRYPTO_get_locked_mem_ex_functions
4544 These work the same way as CRYPTO_set_mem_functions and friends.
4545 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4546 extended allocation function is enabled.
4547 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4548 a conventional allocation function is enabled.
4549 [Richard Levitte, Bodo Moeller]
4551 *) Finish off removing the remaining LHASH function pointer casts.
4552 There should no longer be any prototype-casting required when using
4553 the LHASH abstraction, and any casts that remain are "bugs". See
4554 the callback types and macros at the head of lhash.h for details
4555 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4558 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4559 If /dev/[u]random devices are not available or do not return enough
4560 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4562 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4563 /etc/entropy will be queried once each in this sequence, quering stops
4564 when enough entropy was collected without querying more sockets.
4567 *) Change the Unix RAND_poll() variant to be able to poll several
4568 random devices, as specified by DEVRANDOM, until a sufficient amount
4569 of data has been collected. We spend at most 10 ms on each file
4570 (select timeout) and read in non-blocking mode. DEVRANDOM now
4571 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4572 (previously it was just the string "/dev/urandom"), so on typical
4573 platforms the 10 ms delay will never occur.
4574 Also separate out the Unix variant to its own file, rand_unix.c.
4575 For VMS, there's a currently-empty rand_vms.c.
4578 *) Move OCSP client related routines to ocsp_cl.c. These
4579 provide utility functions which an application needing
4580 to issue a request to an OCSP responder and analyse the
4581 response will typically need: as opposed to those which an
4582 OCSP responder itself would need which will be added later.
4584 OCSP_request_sign() signs an OCSP request with an API similar
4585 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4586 response. OCSP_response_get1_basic() extracts basic response
4587 from response. OCSP_resp_find_status(): finds and extracts status
4588 information from an OCSP_CERTID structure (which will be created
4589 when the request structure is built). These are built from lower
4590 level functions which work on OCSP_SINGLERESP structures but
4591 wont normally be used unless the application wishes to examine
4592 extensions in the OCSP response for example.
4594 Replace nonce routines with a pair of functions.
4595 OCSP_request_add1_nonce() adds a nonce value and optionally
4596 generates a random value. OCSP_check_nonce() checks the
4597 validity of the nonce in an OCSP response.
4600 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4601 This doesn't copy the supplied OCSP_CERTID and avoids the
4602 need to free up the newly created id. Change return type
4603 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4604 This can then be used to add extensions to the request.
4605 Deleted OCSP_request_new(), since most of its functionality
4606 is now in OCSP_REQUEST_new() (and the case insensitive name
4607 clash) apart from the ability to set the request name which
4608 will be added elsewhere.
4611 *) Update OCSP API. Remove obsolete extensions argument from
4612 various functions. Extensions are now handled using the new
4613 OCSP extension code. New simple OCSP HTTP function which
4614 can be used to send requests and parse the response.
4617 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4618 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4619 uses the special reorder version of SET OF to sort the attributes
4620 and reorder them to match the encoded order. This resolves a long
4621 standing problem: a verify on a PKCS7 structure just after signing
4622 it used to fail because the attribute order did not match the
4623 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4624 it uses the received order. This is necessary to tolerate some broken
4625 software that does not order SET OF. This is handled by encoding
4626 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4627 to produce the required SET OF.
4630 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4631 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4632 files to get correct declarations of the ASN.1 item variables.
4635 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4636 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4637 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4638 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4639 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4640 ASN1_ITEM and no wrapper functions.
4643 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4644 replace the old function pointer based I/O routines. Change most of
4645 the *_d2i_bio() and *_d2i_fp() functions to use these.
4648 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4649 lines, recognice more "algorithms" that can be deselected, and make
4650 it complain about algorithm deselection that isn't recognised.
4653 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4654 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4655 to use new functions. Add NO_ASN1_OLD which can be set to remove
4656 some old style ASN1 functions: this can be used to determine if old
4657 code will still work when these eventually go away.
4660 *) New extension functions for OCSP structures, these follow the
4661 same conventions as certificates and CRLs.
4664 *) New function X509V3_add1_i2d(). This automatically encodes and
4665 adds an extension. Its behaviour can be customised with various
4666 flags to append, replace or delete. Various wrappers added for
4667 certifcates and CRLs.
4670 *) Fix to avoid calling the underlying ASN1 print routine when
4671 an extension cannot be parsed. Correct a typo in the
4672 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4675 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4676 entries for variables.
4679 *) Add functionality to apps/openssl.c for detecting locking
4680 problems: As the program is single-threaded, all we have
4681 to do is register a locking callback using an array for
4682 storing which locks are currently held by the program.
4685 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4686 SSL_get_ex_data_X509_STORE_idx(), which is used in
4687 ssl_verify_cert_chain() and thus can be called at any time
4688 during TLS/SSL handshakes so that thread-safety is essential.
4689 Unfortunately, the ex_data design is not at all suited
4690 for multi-threaded use, so it probably should be abolished.
4693 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4694 [Broadcom, tweaked and integrated by Geoff Thorpe]
4696 *) Move common extension printing code to new function
4697 X509V3_print_extensions(). Reorganise OCSP print routines and
4698 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4701 *) New function X509_signature_print() to remove duplication in some
4705 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4706 set (this was treated exactly the same as SET OF previously). This
4707 is used to reorder the STACK representing the structure to match the
4708 encoding. This will be used to get round a problem where a PKCS7
4709 structure which was signed could not be verified because the STACK
4710 order did not reflect the encoded order.
4713 *) Reimplement the OCSP ASN1 module using the new code.
4716 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4717 for its ASN1 operations. The old style function pointers still exist
4718 for now but they will eventually go away.
4721 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4722 completely replaces the old ASN1 functionality with a table driven
4723 encoder and decoder which interprets an ASN1_ITEM structure describing
4724 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4725 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4726 has also been converted to the new form.
4729 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4730 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4731 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4732 for negative moduli.
4735 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4736 of not touching the result's sign bit.
4739 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4743 *) Changed the LHASH code to use prototypes for callbacks, and created
4744 macros to declare and implement thin (optionally static) functions
4745 that provide type-safety and avoid function pointer casting for the
4746 type-specific callbacks.
4749 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4751 [Veers Staats <staatsvr@asc.hpc.mil>,
4752 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4754 *) Reformat the FAQ so the different questions and answers can be divided
4755 in sections depending on the subject.
4758 *) Have the zlib compression code load ZLIB.DLL dynamically under
4762 *) New function BN_mod_sqrt for computing square roots modulo a prime
4763 (using the probabilistic Tonelli-Shanks algorithm unless
4764 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4765 be handled deterministically).
4766 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4768 *) Make BN_mod_inverse faster by explicitly handling small quotients
4769 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4770 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4773 *) New function BN_kronecker.
4776 *) Fix BN_gcd so that it works on negative inputs; the result is
4777 positive unless both parameters are zero.
4778 Previously something reasonably close to an infinite loop was
4779 possible because numbers could be growing instead of shrinking
4780 in the implementation of Euclid's algorithm.
4783 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4784 sign of the number in question.
4786 Fix BN_is_word(a,w) to work correctly for w == 0.
4788 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4789 because its test if the absolute value of 'a' equals 'w'.
4790 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4791 it exists mostly for use in the implementations of BN_is_zero(),
4792 BN_is_one(), and BN_is_word().
4795 *) New function BN_swap.
4798 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4799 the exponentiation functions are more likely to produce reasonable
4800 results on negative inputs.
4803 *) Change BN_mod_mul so that the result is always non-negative.
4804 Previously, it could be negative if one of the factors was negative;
4805 I don't think anyone really wanted that behaviour.
4808 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4809 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4810 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4811 and add new functions:
4820 BN_mod_lshift1_quick
4824 These functions always generate non-negative results.
4826 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4827 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4829 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4830 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4831 be reduced modulo m.
4832 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4835 The following entry accidentily appeared in the CHANGES file
4836 distributed with OpenSSL 0.9.7. The modifications described in
4837 it do *not* apply to OpenSSL 0.9.7.
4839 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4840 was actually never needed) and in BN_mul(). The removal in BN_mul()
4841 required a small change in bn_mul_part_recursive() and the addition
4842 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4843 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4844 bn_sub_words() and bn_add_words() except they take arrays with
4849 *) In 'openssl passwd', verify passwords read from the terminal
4850 unless the '-salt' option is used (which usually means that
4851 verification would just waste user's time since the resulting
4852 hash is going to be compared with some given password hash)
4853 or the new '-noverify' option is used.
4855 This is an incompatible change, but it does not affect
4856 non-interactive use of 'openssl passwd' (passwords on the command
4857 line, '-stdin' option, '-in ...' option) and thus should not
4861 *) Remove all references to RSAref, since there's no more need for it.
4864 *) Make DSO load along a path given through an environment variable
4865 (SHLIB_PATH) with shl_load().
4868 *) Constify the ENGINE code as a result of BIGNUM constification.
4869 Also constify the RSA code and most things related to it. In a
4870 few places, most notable in the depth of the ASN.1 code, ugly
4871 casts back to non-const were required (to be solved at a later
4875 *) Make it so the openssl application has all engines loaded by default.
4878 *) Constify the BIGNUM routines a little more.
4881 *) Add the following functions:
4883 ENGINE_load_cswift()
4885 ENGINE_load_atalla()
4887 ENGINE_load_builtin_engines()
4889 That way, an application can itself choose if external engines that
4890 are built-in in OpenSSL shall ever be used or not. The benefit is
4891 that applications won't have to be linked with libdl or other dso
4892 libraries unless it's really needed.
4894 Changed 'openssl engine' to load all engines on demand.
4895 Changed the engine header files to avoid the duplication of some
4896 declarations (they differed!).
4899 *) 'openssl engine' can now list capabilities.
4902 *) Better error reporting in 'openssl engine'.
4905 *) Never call load_dh_param(NULL) in s_server.
4908 *) Add engine application. It can currently list engines by name and
4909 identity, and test if they are actually available.
4912 *) Improve RPM specification file by forcing symbolic linking and making
4913 sure the installed documentation is also owned by root.root.
4914 [Damien Miller <djm@mindrot.org>]
4916 *) Give the OpenSSL applications more possibilities to make use of
4917 keys (public as well as private) handled by engines.
4920 *) Add OCSP code that comes from CertCo.
4923 *) Add VMS support for the Rijndael code.
4926 *) Added untested support for Nuron crypto accelerator.
4929 *) Add support for external cryptographic devices. This code was
4930 previously distributed separately as the "engine" branch.
4931 [Geoff Thorpe, Richard Levitte]
4933 *) Rework the filename-translation in the DSO code. It is now possible to
4934 have far greater control over how a "name" is turned into a filename
4935 depending on the operating environment and any oddities about the
4936 different shared library filenames on each system.
4939 *) Support threads on FreeBSD-elf in Configure.
4942 *) Fix for SHA1 assembly problem with MASM: it produces
4943 warnings about corrupt line number information when assembling
4944 with debugging information. This is caused by the overlapping
4946 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4949 NCONF_get_number() has no error checking at all. As a replacement,
4950 NCONF_get_number_e() is defined (_e for "error checking") and is
4951 promoted strongly. The old NCONF_get_number is kept around for
4952 binary backward compatibility.
4953 Make it possible for methods to load from something other than a BIO,
4954 by providing a function pointer that is given a name instead of a BIO.
4955 For example, this could be used to load configuration data from an
4959 *) Fix for non blocking accept BIOs. Added new I/O special reason
4960 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4961 with non blocking I/O was not possible because no retry code was
4962 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4966 *) Added the beginnings of Rijndael support.
4969 *) Fix for bug in DirectoryString mask setting. Add support for
4970 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4971 to allow certificate printing to more controllable, additional
4972 'certopt' option to 'x509' to allow new printing options to be
4976 *) Clean old EAY MD5 hack from e_os.h.
4979 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4981 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4982 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4983 [Joe Orton, Steve Henson]
4985 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4987 *) Fix additional bug revealed by the NISCC test suite:
4989 Stop bug triggering large recursion when presented with
4990 certain ASN.1 tags (CVE-2003-0851)
4993 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4995 *) Fix various bugs revealed by running the NISCC test suite:
4997 Stop out of bounds reads in the ASN1 code when presented with
4998 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5000 If verify callback ignores invalid public key errors don't try to check
5001 certificate signature with the NULL public key.
5005 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5006 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5010 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5011 extra data after the compression methods not only for TLS 1.0
5012 but also for SSL 3.0 (as required by the specification).
5013 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5015 *) Change X509_certificate_type() to mark the key as exported/exportable
5016 when it's 512 *bits* long, not 512 bytes.
5019 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5021 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5022 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5023 a protocol version number mismatch like a decryption error
5024 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5027 *) Turn on RSA blinding by default in the default implementation
5028 to avoid a timing attack. Applications that don't want it can call
5029 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5030 They would be ill-advised to do so in most cases.
5031 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5033 *) Change RSA blinding code so that it works when the PRNG is not
5034 seeded (in this case, the secret RSA exponent is abused as
5035 an unpredictable seed -- if it is not unpredictable, there
5036 is no point in blinding anyway). Make RSA blinding thread-safe
5037 by remembering the creator's thread ID in rsa->blinding and
5038 having all other threads use local one-time blinding factors
5039 (this requires more computation than sharing rsa->blinding, but
5040 avoids excessive locking; and if an RSA object is not shared
5041 between threads, blinding will still be very fast).
5044 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5046 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5047 via timing by performing a MAC computation even if incorrrect
5048 block cipher padding has been found. This is a countermeasure
5049 against active attacks where the attacker has to distinguish
5050 between bad padding and a MAC verification error. (CVE-2003-0078)
5052 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5053 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5054 Martin Vuagnoux (EPFL, Ilion)]
5056 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5058 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5059 memory from it's contents. This is done with a counter that will
5060 place alternating values in each byte. This can be used to solve
5061 two issues: 1) the removal of calls to memset() by highly optimizing
5062 compilers, and 2) cleansing with other values than 0, since those can
5063 be read through on certain media, for example a swap space on disk.
5066 *) Bugfix: client side session caching did not work with external caching,
5067 because the session->cipher setting was not restored when reloading
5068 from the external cache. This problem was masked, when
5069 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5070 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5073 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5074 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5075 [Zeev Lieber <zeev-l@yahoo.com>]
5077 *) Undo an undocumented change introduced in 0.9.6e which caused
5078 repeated calls to OpenSSL_add_all_ciphers() and
5079 OpenSSL_add_all_digests() to be ignored, even after calling
5083 *) Change the default configuration reader to deal with last line not
5084 being properly terminated.
5087 *) Change X509_NAME_cmp() so it applies the special rules on handling
5088 DN values that are of type PrintableString, as well as RDNs of type
5089 emailAddress where the value has the type ia5String.
5090 [stefank@valicert.com via Richard Levitte]
5092 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5093 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5094 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5095 the bitwise-OR of the two for use by the majority of applications
5096 wanting this behaviour, and update the docs. The documented
5097 behaviour and actual behaviour were inconsistent and had been
5098 changing anyway, so this is more a bug-fix than a behavioural
5100 [Geoff Thorpe, diagnosed by Nadav Har'El]
5102 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5103 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5106 *) Fix initialization code race conditions in
5107 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5108 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5109 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5110 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5111 ssl2_get_cipher_by_char(),
5112 ssl3_get_cipher_by_char().
5113 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5115 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5116 the cached sessions are flushed, as the remove_cb() might use ex_data
5117 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5118 (see [openssl.org #212]).
5119 [Geoff Thorpe, Lutz Jaenicke]
5121 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5122 length, instead of the encoding length to d2i_ASN1_OBJECT.
5125 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5127 *) [In 0.9.6g-engine release:]
5128 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5129 [Lynn Gazis <lgazis@rainbow.com>]
5131 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5133 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5134 and get fix the header length calculation.
5135 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5136 Alon Kantor <alonk@checkpoint.com> (and others),
5139 *) Use proper error handling instead of 'assertions' in buffer
5140 overflow checks added in 0.9.6e. This prevents DoS (the
5141 assertions could call abort()).
5142 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5144 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5146 *) Add various sanity checks to asn1_get_length() to reject
5147 the ASN1 length bytes if they exceed sizeof(long), will appear
5148 negative or the content length exceeds the length of the
5150 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5152 *) Fix cipher selection routines: ciphers without encryption had no flags
5153 for the cipher strength set and where therefore not handled correctly
5154 by the selection routines (PR #130).
5157 *) Fix EVP_dsa_sha macro.
5161 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5162 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5163 that was added in OpenSSL 0.9.6d.
5165 As the countermeasure turned out to be incompatible with some
5166 broken SSL implementations, the new option is part of SSL_OP_ALL.
5167 SSL_OP_ALL is usually employed when compatibility with weird SSL
5168 implementations is desired (e.g. '-bugs' option to 's_client' and
5169 's_server'), so the new option is automatically set in many
5173 *) Changes in security patch:
5175 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5176 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5177 Air Force Materiel Command, USAF, under agreement number
5180 *) Add various sanity checks to asn1_get_length() to reject
5181 the ASN1 length bytes if they exceed sizeof(long), will appear
5182 negative or the content length exceeds the length of the
5183 supplied buffer. (CVE-2002-0659)
5184 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5186 *) Assertions for various potential buffer overflows, not known to
5188 [Ben Laurie (CHATS)]
5190 *) Various temporary buffers to hold ASCII versions of integers were
5191 too small for 64 bit platforms. (CVE-2002-0655)
5192 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5194 *) Remote buffer overflow in SSL3 protocol - an attacker could
5195 supply an oversized session ID to a client. (CVE-2002-0656)
5196 [Ben Laurie (CHATS)]
5198 *) Remote buffer overflow in SSL2 protocol - an attacker could
5199 supply an oversized client master key. (CVE-2002-0656)
5200 [Ben Laurie (CHATS)]
5202 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5204 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5205 encoded as NULL) with id-dsa-with-sha1.
5206 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5208 *) Check various X509_...() return values in apps/req.c.
5209 [Nils Larsch <nla@trustcenter.de>]
5211 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5212 an end-of-file condition would erronously be flagged, when the CRLF
5213 was just at the end of a processed block. The bug was discovered when
5214 processing data through a buffering memory BIO handing the data to a
5215 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5216 <ptsekov@syntrex.com> and Nedelcho Stanev.
5219 *) Implement a countermeasure against a vulnerability recently found
5220 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5221 before application data chunks to avoid the use of known IVs
5222 with data potentially chosen by the attacker.
5225 *) Fix length checks in ssl3_get_client_hello().
5228 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5229 to prevent ssl3_read_internal() from incorrectly assuming that
5230 ssl3_read_bytes() found application data while handshake
5231 processing was enabled when in fact s->s3->in_read_app_data was
5232 merely automatically cleared during the initial handshake.
5233 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5235 *) Fix object definitions for Private and Enterprise: they were not
5236 recognized in their shortname (=lowercase) representation. Extend
5237 obj_dat.pl to issue an error when using undefined keywords instead
5238 of silently ignoring the problem (Svenning Sorensen
5239 <sss@sss.dnsalias.net>).
5242 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5243 generators, i.e. generators other than 2 and 5. (Previously, the
5244 code did not properly initialise the 'add' and 'rem' values to
5245 BN_generate_prime().)
5247 In the new general case, we do not insist that 'generator' is
5248 actually a primitive root: This requirement is rather pointless;
5249 a generator of the order-q subgroup is just as good, if not
5253 *) Map new X509 verification errors to alerts. Discovered and submitted by
5254 Tom Wu <tom@arcot.com>.
5257 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5258 returning non-zero before the data has been completely received
5259 when using non-blocking I/O.
5260 [Bodo Moeller; problem pointed out by John Hughes]
5262 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5263 [Ben Laurie, Lutz Jaenicke]
5265 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5266 Yoram Zahavi <YoramZ@gilian.com>).
5269 *) Add information about CygWin 1.3 and on, and preserve proper
5270 configuration for the versions before that.
5271 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5273 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5274 check whether we deal with a copy of a session and do not delete from
5275 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5276 <izhar@checkpoint.com>.
5279 *) Do not store session data into the internal session cache, if it
5280 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5281 flag is set). Proposed by Aslam <aslam@funk.com>.
5284 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5288 *) [In 0.9.6d-engine release:]
5289 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5290 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5292 *) Add the configuration target linux-s390x.
5293 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5295 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5296 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5297 variable as an indication that a ClientHello message has been
5298 received. As the flag value will be lost between multiple
5299 invocations of ssl3_accept when using non-blocking I/O, the
5300 function may not be aware that a handshake has actually taken
5301 place, thus preventing a new session from being added to the
5304 To avoid this problem, we now set s->new_session to 2 instead of
5305 using a local variable.
5306 [Lutz Jaenicke, Bodo Moeller]
5308 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5309 if the SSL_R_LENGTH_MISMATCH error is detected.
5310 [Geoff Thorpe, Bodo Moeller]
5312 *) New 'shared_ldflag' column in Configure platform table.
5315 *) Fix EVP_CIPHER_mode macro.
5316 ["Dan S. Camper" <dan@bti.net>]
5318 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5319 type, we must throw them away by setting rr->length to 0.
5320 [D P Chang <dpc@qualys.com>]
5322 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5324 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5325 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5326 worked incorrectly for those cases where range = 10..._2 and
5327 3*range is two bits longer than range.)
5330 *) Only add signing time to PKCS7 structures if it is not already
5334 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5335 OBJ_ld_ce should be OBJ_id_ce.
5336 Also some ip-pda OIDs in crypto/objects/objects.txt were
5337 incorrect (cf. RFC 3039).
5338 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5340 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5341 returns early because it has nothing to do.
5342 [Andy Schneider <andy.schneider@bjss.co.uk>]
5344 *) [In 0.9.6c-engine release:]
5345 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5346 [Andy Schneider <andy.schneider@bjss.co.uk>]
5348 *) [In 0.9.6c-engine release:]
5349 Add support for Cryptographic Appliance's keyserver technology.
5350 (Use engine 'keyclient')
5351 [Cryptographic Appliances and Geoff Thorpe]
5353 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5354 is called via tools/c89.sh because arguments have to be
5355 rearranged (all '-L' options must appear before the first object
5357 [Richard Shapiro <rshapiro@abinitio.com>]
5359 *) [In 0.9.6c-engine release:]
5360 Add support for Broadcom crypto accelerator cards, backported
5362 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5364 *) [In 0.9.6c-engine release:]
5365 Add support for SureWare crypto accelerator cards from
5366 Baltimore Technologies. (Use engine 'sureware')
5367 [Baltimore Technologies and Mark Cox]
5369 *) [In 0.9.6c-engine release:]
5370 Add support for crypto accelerator cards from Accelerated
5371 Encryption Processing, www.aep.ie. (Use engine 'aep')
5372 [AEP Inc. and Mark Cox]
5374 *) Add a configuration entry for gcc on UnixWare.
5375 [Gary Benson <gbenson@redhat.com>]
5377 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5378 messages are stored in a single piece (fixed-length part and
5379 variable-length part combined) and fix various bugs found on the way.
5382 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5383 instead. BIO_gethostbyname() does not know what timeouts are
5384 appropriate, so entries would stay in cache even when they have
5386 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5388 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5389 faced with a pathologically small ClientHello fragment that does
5390 not contain client_version: Instead of aborting with an error,
5391 simply choose the highest available protocol version (i.e.,
5392 TLS 1.0 unless it is disabled). In practice, ClientHello
5393 messages are never sent like this, but this change gives us
5394 strictly correct behaviour at least for TLS.
5397 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5398 never resets s->method to s->ctx->method when called from within
5399 one of the SSL handshake functions.
5400 [Bodo Moeller; problem pointed out by Niko Baric]
5402 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5403 (sent using the client's version number) if client_version is
5404 smaller than the protocol version in use. Also change
5405 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5406 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5407 the client will at least see that alert.
5410 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5414 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5415 client receives HelloRequest while in a handshake.
5416 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5418 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5419 should end in 'break', not 'goto end' which circuments various
5420 cleanups done in state SSL_ST_OK. But session related stuff
5421 must be disabled for SSL_ST_OK in the case that we just sent a
5424 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5425 before just sending a HelloRequest.
5426 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5428 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5429 reveal whether illegal block cipher padding was found or a MAC
5430 verification error occured. (Neither SSLerr() codes nor alerts
5431 are directly visible to potential attackers, but the information
5432 may leak via logfiles.)
5434 Similar changes are not required for the SSL 2.0 implementation
5435 because the number of padding bytes is sent in clear for SSL 2.0,
5436 and the extra bytes are just ignored. However ssl/s2_pkt.c
5437 failed to verify that the purported number of padding bytes is in
5441 *) Add OpenUNIX-8 support including shared libraries
5442 (Boyd Lynn Gerber <gerberb@zenez.com>).
5445 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5446 'wristwatch attack' using huge encoding parameters (cf.
5447 James H. Manger's CRYPTO 2001 paper). Note that the
5448 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5449 encoding parameters and hence was not vulnerable.
5452 *) BN_sqr() bug fix.
5453 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5455 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5456 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5457 followed by modular reduction.
5458 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5460 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5461 equivalent based on BN_pseudo_rand() instead of BN_rand().
5464 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5465 This function was broken, as the check for a new client hello message
5466 to handle SGC did not allow these large messages.
5467 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5470 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5473 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5474 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5477 *) Rework the configuration and shared library support for Tru64 Unix.
5478 The configuration part makes use of modern compiler features and
5479 still retains old compiler behavior for those that run older versions
5480 of the OS. The shared library support part includes a variant that
5481 uses the RPATH feature, and is available through the special
5482 configuration target "alpha-cc-rpath", which will never be selected
5484 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5486 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5487 with the same message size as in ssl3_get_certificate_request().
5488 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5489 messages might inadvertently be reject as too long.
5490 [Petr Lampa <lampa@fee.vutbr.cz>]
5492 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5495 *) Modified SSL library such that the verify_callback that has been set
5496 specificly for an SSL object with SSL_set_verify() is actually being
5497 used. Before the change, a verify_callback set with this function was
5498 ignored and the verify_callback() set in the SSL_CTX at the time of
5499 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5500 to allow the necessary settings.
5503 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5504 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5505 done automatically (in contradiction to the requirements of the C
5506 standard). This made problems when used from OpenSSH.
5509 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5510 dh->length and always used
5512 BN_rand_range(priv_key, dh->p).
5514 BN_rand_range() is not necessary for Diffie-Hellman, and this
5515 specific range makes Diffie-Hellman unnecessarily inefficient if
5516 dh->length (recommended exponent length) is much smaller than the
5517 length of dh->p. We could use BN_rand_range() if the order of
5518 the subgroup was stored in the DH structure, but we only have
5523 BN_rand(priv_key, l, ...)
5525 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5531 RSA_eay_public_encrypt
5532 RSA_eay_private_decrypt
5533 RSA_eay_private_encrypt (signing)
5534 RSA_eay_public_decrypt (signature verification)
5536 (default implementations for RSA_public_encrypt,
5537 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5538 always reject numbers >= n.
5541 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5542 to synchronize access to 'locking_thread'. This is necessary on
5543 systems where access to 'locking_thread' (an 'unsigned long'
5544 variable) is not atomic.
5547 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5548 *before* setting the 'crypto_lock_rand' flag. The previous code had
5549 a race condition if 0 is a valid thread ID.
5550 [Travis Vitek <vitek@roguewave.com>]
5552 *) Add support for shared libraries under Irix.
5553 [Albert Chin-A-Young <china@thewrittenword.com>]
5555 *) Add configuration option to build on Linux on both big-endian and
5557 [Ralf Baechle <ralf@uni-koblenz.de>]
5559 *) Add the possibility to create shared libraries on HP-UX.
5562 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5564 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5565 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5566 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5567 PRNG state recovery was possible based on the output of
5568 one PRNG request appropriately sized to gain knowledge on
5569 'md' followed by enough consecutive 1-byte PRNG requests
5570 to traverse all of 'state'.
5572 1. When updating 'md_local' (the current thread's copy of 'md')
5573 during PRNG output generation, hash all of the previous
5574 'md_local' value, not just the half used for PRNG output.
5576 2. Make the number of bytes from 'state' included into the hash
5577 independent from the number of PRNG bytes requested.
5579 The first measure alone would be sufficient to avoid
5580 Markku-Juhani's attack. (Actually it had never occurred
5581 to me that the half of 'md_local' used for chaining was the
5582 half from which PRNG output bytes were taken -- I had always
5583 assumed that the secret half would be used.) The second
5584 measure makes sure that additional data from 'state' is never
5585 mixed into 'md_local' in small portions; this heuristically
5586 further strengthens the PRNG.
5589 *) Fix crypto/bn/asm/mips3.s.
5592 *) When only the key is given to "enc", the IV is undefined. Print out
5593 an error message in this case.
5596 *) Handle special case when X509_NAME is empty in X509 printing routines.
5599 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5600 positive and less than q.
5603 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5604 used: it isn't thread safe and the add_lock_callback should handle
5606 [Paul Rose <Paul.Rose@bridge.com>]
5608 *) Verify that incoming data obeys the block size in
5609 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5613 [Ulf Möller, Bodo Möller]
5615 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5616 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5617 when fixing the server behaviour for backwards-compatible 'client
5618 hello' messages. (Note that the attack is impractical against
5619 SSL 3.0 and TLS 1.0 anyway because length and version checking
5620 means that the probability of guessing a valid ciphertext is
5621 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5624 Before 0.9.5, the countermeasure (hide the error by generating a
5625 random 'decryption result') did not work properly because
5626 ERR_clear_error() was missing, meaning that SSL_get_error() would
5627 detect the supposedly ignored error.
5629 Both problems are now fixed.
5632 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5633 (previously it was 1024).
5636 *) Fix for compatibility mode trust settings: ignore trust settings
5637 unless some valid trust or reject settings are present.
5640 *) Fix for blowfish EVP: its a variable length cipher.
5643 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5644 parameters in DSA public key structures and return an error in the
5645 DSA routines if parameters are absent.
5648 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5649 in the current directory if neither $RANDFILE nor $HOME was set.
5650 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5651 caused some confusion to Windows users who haven't defined $HOME.
5652 Thus RAND_file_name() is changed again: e_os.h can define a
5653 DEFAULT_HOME, which will be used if $HOME is not set.
5654 For Windows, we use "C:"; on other platforms, we still require
5655 environment variables.
5657 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5658 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5659 having multiple threads call RAND_poll() concurrently.
5662 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5663 combination of a flag and a thread ID variable.
5664 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5665 flag), *other* threads can enter ssleay_add_bytes without obeying
5666 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5667 that they do not hold after the first thread unsets add_do_not_lock).
5670 *) Change bctest again: '-x' expressions are not available in all
5674 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5676 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5677 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5679 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5680 the default extension for executables, if any. Also, make the perl
5681 scripts that use symlink() to test if it really exists and use "cp"
5682 if it doesn't. All this made OpenSSL compilable and installable in
5686 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5687 If SEQUENCE is length is indefinite just set c->slen to the total
5688 amount of data available.
5689 [Steve Henson, reported by shige@FreeBSD.org]
5690 [This change does not apply to 0.9.7.]
5692 *) Change bctest to avoid here-documents inside command substitution
5693 (workaround for FreeBSD /bin/sh bug).
5694 For compatibility with Ultrix, avoid shell functions (introduced
5695 in the bctest version that searches along $PATH).
5698 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5699 with des_encrypt() defined on some operating systems, like Solaris
5703 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5704 On the Importance of Eliminating Errors in Cryptographic
5705 Computations, J. Cryptology 14 (2001) 2, 101-119,
5706 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5709 *) MIPS assembler BIGNUM division bug fix.
5712 *) Disabled incorrect Alpha assembler code.
5715 *) Fix PKCS#7 decode routines so they correctly update the length
5716 after reading an EOC for the EXPLICIT tag.
5718 [This change does not apply to 0.9.7.]
5720 *) Fix bug in PKCS#12 key generation routines. This was triggered
5721 if a 3DES key was generated with a 0 initial byte. Include
5722 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5723 (but broken) behaviour.
5726 *) Enhance bctest to search for a working bc along $PATH and print
5728 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5730 *) Fix memory leaks in err.c: free err_data string if necessary;
5731 don't write to the wrong index in ERR_set_error_data.
5734 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5738 *) Replace rdtsc with _emit statements for VC++ version 5.
5739 [Jeremy Cooper <jeremy@baymoo.org>]
5741 *) Make it possible to reuse SSLv2 sessions.
5744 *) In copy_email() check for >= 0 as a return value for
5745 X509_NAME_get_index_by_NID() since 0 is a valid index.
5746 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5748 *) Avoid coredump with unsupported or invalid public keys by checking if
5749 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5750 PKCS7_verify() fails with non detached data.
5753 *) Don't use getenv in library functions when run as setuid/setgid.
5754 New function OPENSSL_issetugid().
5757 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5758 due to incorrect handling of multi-threading:
5760 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5762 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5764 3. Count how many times MemCheck_off() has been called so that
5765 nested use can be treated correctly. This also avoids
5766 inband-signalling in the previous code (which relied on the
5767 assumption that thread ID 0 is impossible).
5770 *) Add "-rand" option also to s_client and s_server.
5773 *) Fix CPU detection on Irix 6.x.
5774 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5775 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5777 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5780 [This change does not apply to 0.9.7.]
5782 *) Use the cached encoding of an X509_NAME structure rather than
5783 copying it. This is apparently the reason for the libsafe "errors"
5784 but the code is actually correct.
5787 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5788 Bleichenbacher's DSA attack.
5789 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5790 to be set and top=0 forces the highest bit to be set; top=-1 is new
5791 and leaves the highest bit random.
5792 [Ulf Moeller, Bodo Moeller]
5794 *) In the NCONF_...-based implementations for CONF_... queries
5795 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5796 a temporary CONF structure with the data component set to NULL
5797 (which gives segmentation faults in lh_retrieve).
5798 Instead, use NULL for the CONF pointer in CONF_get_string and
5799 CONF_get_number (which may use environment variables) and directly
5800 return NULL from CONF_get_section.
5803 *) Fix potential buffer overrun for EBCDIC.
5806 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5807 keyUsage if basicConstraints absent for a CA.
5810 *) Make SMIME_write_PKCS7() write mail header values with a format that
5811 is more generally accepted (no spaces before the semicolon), since
5812 some programs can't parse those values properly otherwise. Also make
5813 sure BIO's that break lines after each write do not create invalid
5817 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5818 macros previously used would not encode an empty SEQUENCE OF
5819 and break the signature.
5821 [This change does not apply to 0.9.7.]
5823 *) Zero the premaster secret after deriving the master secret in
5827 *) Add some EVP_add_digest_alias registrations (as found in
5828 OpenSSL_add_all_digests()) to SSL_library_init()
5829 aka OpenSSL_add_ssl_algorithms(). This provides improved
5830 compatibility with peers using X.509 certificates
5831 with unconventional AlgorithmIdentifier OIDs.
5834 *) Fix for Irix with NO_ASM.
5835 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5837 *) ./config script fixes.
5838 [Ulf Moeller, Richard Levitte]
5840 *) Fix 'openssl passwd -1'.
5843 *) Change PKCS12_key_gen_asc() so it can cope with non null
5844 terminated strings whose length is passed in the passlen
5845 parameter, for example from PEM callbacks. This was done
5846 by adding an extra length parameter to asc2uni().
5847 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5849 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5850 call failed, free the DSA structure.
5853 *) Fix to uni2asc() to cope with zero length Unicode strings.
5854 These are present in some PKCS#12 files.
5857 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5858 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5859 when writing a 32767 byte record.
5860 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5862 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5863 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5865 (RSA objects have a reference count access to which is protected
5866 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5867 so they are meant to be shared between threads.)
5868 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5869 "Reddie, Steven" <Steven.Reddie@ca.com>]
5871 *) Fix a deadlock in CRYPTO_mem_leaks().
5874 *) Use better test patterns in bntest.
5877 *) rand_win.c fix for Borland C.
5880 *) BN_rshift bugfix for n == 0.
5883 *) Add a 'bctest' script that checks for some known 'bc' bugs
5884 so that 'make test' does not abort just because 'bc' is broken.
5887 *) Store verify_result within SSL_SESSION also for client side to
5888 avoid potential security hole. (Re-used sessions on the client side
5889 always resulted in verify_result==X509_V_OK, not using the original
5890 result of the server certificate verification.)
5893 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5894 SSL3_RT_APPLICATION_DATA, return 0.
5895 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5899 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5900 releases, have been re-implemented by renaming the previous
5901 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5902 and ssl3_read_internal, respectively, and adding 'peek' parameters
5903 to them. The new ssl[23]_{read,peek} functions are calls to
5904 ssl[23]_read_internal with the 'peek' flag set appropriately.
5905 A 'peek' parameter has also been added to ssl3_read_bytes, which
5906 does the actual work for ssl3_read_internal.
5909 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5910 the method-specific "init()" handler. Also clean up ex_data after
5911 calling the method-specific "finish()" handler. Previously, this was
5912 happening the other way round.
5915 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5916 The previous value, 12, was not always sufficient for BN_mod_exp().
5919 *) Make sure that shared libraries get the internal name engine with
5920 the full version number and not just 0. This should mark the
5921 shared libraries as not backward compatible. Of course, this should
5922 be changed again when we can guarantee backward binary compatibility.
5925 *) Fix typo in get_cert_by_subject() in by_dir.c
5926 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5928 *) Rework the system to generate shared libraries:
5930 - Make note of the expected extension for the shared libraries and
5931 if there is a need for symbolic links from for example libcrypto.so.0
5932 to libcrypto.so.0.9.7. There is extended info in Configure for
5935 - Make as few rebuilds of the shared libraries as possible.
5937 - Still avoid linking the OpenSSL programs with the shared libraries.
5939 - When installing, install the shared libraries separately from the
5943 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5945 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5946 and not in SSL_clear because the latter is also used by the
5947 accept/connect functions; previously, the settings made by
5948 SSL_set_read_ahead would be lost during the handshake.
5949 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5951 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5952 Previously, it would create entries for disableed algorithms no
5956 *) Added several new manual pages for SSL_* function.
5959 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5961 *) In ssl23_get_client_hello, generate an error message when faced
5962 with an initial SSL 3.0/TLS record that is too small to contain the
5963 first two bytes of the ClientHello message, i.e. client_version.
5964 (Note that this is a pathologic case that probably has never happened
5965 in real life.) The previous approach was to use the version number
5966 from the record header as a substitute; but our protocol choice
5967 should not depend on that one because it is not authenticated
5968 by the Finished messages.
5971 *) More robust randomness gathering functions for Windows.
5972 [Jeffrey Altman <jaltman@columbia.edu>]
5974 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5975 not set then we don't setup the error code for issuer check errors
5976 to avoid possibly overwriting other errors which the callback does
5977 handle. If an application does set the flag then we assume it knows
5978 what it is doing and can handle the new informational codes
5982 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5983 a general "ANY" type, as such it should be able to decode anything
5984 including tagged types. However it didn't check the class so it would
5985 wrongly interpret tagged types in the same way as their universal
5986 counterpart and unknown types were just rejected. Changed so that the
5987 tagged and unknown types are handled in the same way as a SEQUENCE:
5988 that is the encoding is stored intact. There is also a new type
5989 "V_ASN1_OTHER" which is used when the class is not universal, in this
5990 case we have no idea what the actual type is so we just lump them all
5994 *) On VMS, stdout may very well lead to a file that is written to
5995 in a record-oriented fashion. That means that every write() will
5996 write a separate record, which will be read separately by the
5997 programs trying to read from it. This can be very confusing.
5999 The solution is to put a BIO filter in the way that will buffer
6000 text until a linefeed is reached, and then write everything a
6001 line at a time, so every record written will be an actual line,
6002 not chunks of lines and not (usually doesn't happen, but I've
6003 seen it once) several lines in one record. BIO_f_linebuffer() is
6006 Currently, it's a VMS-only method, because that's where it has
6007 been tested well enough.
6010 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6011 it can return incorrect results.
6012 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6013 but it was in 0.9.6-beta[12].)
6016 *) Disable the check for content being present when verifying detached
6017 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6018 include zero length content when signing messages.
6021 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6022 BIO_ctrl (for BIO pairs).
6025 *) Add DSO method for VMS.
6028 *) Bug fix: Montgomery multiplication could produce results with the
6032 *) Add RPM specification openssl.spec and modify it to build three
6033 packages. The default package contains applications, application
6034 documentation and run-time libraries. The devel package contains
6035 include files, static libraries and function documentation. The
6036 doc package contains the contents of the doc directory. The original
6037 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6040 *) Add a large number of documentation files for many SSL routines.
6041 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6043 *) Add a configuration entry for Sony News 4.
6044 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6046 *) Don't set the two most significant bits to one when generating a
6047 random number < q in the DSA library.
6050 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6051 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6052 the underlying transport is blocking) if a handshake took place.
6053 (The default behaviour is needed by applications such as s_client
6054 and s_server that use select() to determine when to use SSL_read;
6055 but for applications that know in advance when to expect data, it
6056 just makes things more complicated.)
6059 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6063 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6064 work better on such systems.
6065 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6067 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6068 Update PKCS12_parse() so it copies the friendlyName and the
6069 keyid to the certificates aux info.
6072 *) Fix bug in PKCS7_verify() which caused an infinite loop
6073 if there was more than one signature.
6074 [Sven Uszpelkat <su@celocom.de>]
6076 *) Major change in util/mkdef.pl to include extra information
6077 about each symbol, as well as presentig variables as well
6078 as functions. This change means that there's n more need
6079 to rebuild the .num files when some algorithms are excluded.
6082 *) Allow the verify time to be set by an application,
6083 rather than always using the current time.
6086 *) Phase 2 verify code reorganisation. The certificate
6087 verify code now looks up an issuer certificate by a
6088 number of criteria: subject name, authority key id
6089 and key usage. It also verifies self signed certificates
6090 by the same criteria. The main comparison function is
6091 X509_check_issued() which performs these checks.
6093 Lot of changes were necessary in order to support this
6094 without completely rewriting the lookup code.
6096 Authority and subject key identifier are now cached.
6098 The LHASH 'certs' is X509_STORE has now been replaced
6099 by a STACK_OF(X509_OBJECT). This is mainly because an
6100 LHASH can't store or retrieve multiple objects with
6101 the same hash value.
6103 As a result various functions (which were all internal
6104 use only) have changed to handle the new X509_STORE
6105 structure. This will break anything that messed round
6106 with X509_STORE internally.
6108 The functions X509_STORE_add_cert() now checks for an
6109 exact match, rather than just subject name.
6111 The X509_STORE API doesn't directly support the retrieval
6112 of multiple certificates matching a given criteria, however
6113 this can be worked round by performing a lookup first
6114 (which will fill the cache with candidate certificates)
6115 and then examining the cache for matches. This is probably
6116 the best we can do without throwing out X509_LOOKUP
6117 entirely (maybe later...).
6119 The X509_VERIFY_CTX structure has been enhanced considerably.
6121 All certificate lookup operations now go via a get_issuer()
6122 callback. Although this currently uses an X509_STORE it
6123 can be replaced by custom lookups. This is a simple way
6124 to bypass the X509_STORE hackery necessary to make this
6125 work and makes it possible to use more efficient techniques
6126 in future. A very simple version which uses a simple
6127 STACK for its trusted certificate store is also provided
6128 using X509_STORE_CTX_trusted_stack().
6130 The verify_cb() and verify() callbacks now have equivalents
6131 in the X509_STORE_CTX structure.
6133 X509_STORE_CTX also has a 'flags' field which can be used
6134 to customise the verify behaviour.
6137 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6138 excludes S/MIME capabilities.
6141 *) When a certificate request is read in keep a copy of the
6142 original encoding of the signed data and use it when outputing
6143 again. Signatures then use the original encoding rather than
6144 a decoded, encoded version which may cause problems if the
6145 request is improperly encoded.
6148 *) For consistency with other BIO_puts implementations, call
6149 buffer_write(b, ...) directly in buffer_puts instead of calling
6152 In BIO_puts, increment b->num_write as in BIO_write.
6153 [Peter.Sylvester@EdelWeb.fr]
6155 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6156 BN_zero, we may not return a BIGNUM with an array consisting of
6160 *) Avoid calling abort() from within the library when problems are
6161 detected, except if preprocessor symbols have been defined
6162 (such as REF_CHECK, BN_DEBUG etc.).
6165 *) New openssl application 'rsautl'. This utility can be
6166 used for low level RSA operations. DER public key
6167 BIO/fp routines also added.
6170 *) New Configure entry and patches for compiling on QNX 4.
6171 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6173 *) A demo state-machine implementation was sponsored by
6174 Nuron (http://www.nuron.com/) and is now available in
6175 demos/state_machine.
6178 *) New options added to the 'dgst' utility for signature
6179 generation and verification.
6182 *) Unrecognized PKCS#7 content types are now handled via a
6183 catch all ASN1_TYPE structure. This allows unsupported
6184 types to be stored as a "blob" and an application can
6185 encode and decode it manually.
6188 *) Fix various signed/unsigned issues to make a_strex.c
6190 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6192 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6193 length if passed a buffer. ASN1_INTEGER_to_BN failed
6194 if passed a NULL BN and its argument was negative.
6195 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6197 *) Modification to PKCS#7 encoding routines to output definite
6198 length encoding. Since currently the whole structures are in
6199 memory there's not real point in using indefinite length
6200 constructed encoding. However if OpenSSL is compiled with
6201 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6204 *) Added BIO_vprintf() and BIO_vsnprintf().
6207 *) Added more prefixes to parse for in the the strings written
6208 through a logging bio, to cover all the levels that are available
6209 through syslog. The prefixes are now:
6211 PANIC, EMERG, EMR => LOG_EMERG
6212 ALERT, ALR => LOG_ALERT
6213 CRIT, CRI => LOG_CRIT
6214 ERROR, ERR => LOG_ERR
6215 WARNING, WARN, WAR => LOG_WARNING
6216 NOTICE, NOTE, NOT => LOG_NOTICE
6217 INFO, INF => LOG_INFO
6218 DEBUG, DBG => LOG_DEBUG
6220 and as before, if none of those prefixes are present at the
6221 beginning of the string, LOG_ERR is chosen.
6223 On Win32, the LOG_* levels are mapped according to this:
6225 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6226 LOG_WARNING => EVENTLOG_WARNING_TYPE
6227 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6231 *) Made it possible to reconfigure with just the configuration
6232 argument "reconf" or "reconfigure". The command line arguments
6233 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6234 and are retrieved from there when reconfiguring.
6238 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6240 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6243 *) The obj_dat.pl script was messing up the sorting of object
6244 names. The reason was that it compared the quoted version
6245 of strings as a result "OCSP" > "OCSP Signing" because
6246 " > SPACE. Changed script to store unquoted versions of
6247 names and add quotes on output. It was also omitting some
6248 names from the lookup table if they were given a default
6249 value (that is if SN is missing it is given the same
6250 value as LN and vice versa), these are now added on the
6251 grounds that if an object has a name we should be able to
6252 look it up. Finally added warning output when duplicate
6253 short or long names are found.
6256 *) Changes needed for Tandem NSK.
6257 [Scott Uroff <scott@xypro.com>]
6259 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6260 RSA_padding_check_SSLv23(), special padding was never detected
6261 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6262 version rollback attacks was not effective.
6264 In s23_clnt.c, don't use special rollback-attack detection padding
6265 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6266 client; similarly, in s23_srvr.c, don't do the rollback check if
6267 SSL 2.0 is the only protocol enabled in the server.
6270 *) Make it possible to get hexdumps of unprintable data with 'openssl
6271 asn1parse'. By implication, the functions ASN1_parse_dump() and
6272 BIO_dump_indent() are added.
6275 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6276 these print out strings and name structures based on various
6277 flags including RFC2253 support and proper handling of
6278 multibyte characters. Added options to the 'x509' utility
6279 to allow the various flags to be set.
6282 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6283 Also change the functions X509_cmp_current_time() and
6284 X509_gmtime_adj() work with an ASN1_TIME structure,
6285 this will enable certificates using GeneralizedTime in validity
6286 dates to be checked.
6289 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6290 negative public key encodings) on by default,
6291 NO_NEG_PUBKEY_BUG can be set to disable it.
6294 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6295 content octets. An i2c_ASN1_OBJECT is unnecessary because
6296 the encoding can be trivially obtained from the structure.
6299 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6300 not read locks (CRYPTO_r_[un]lock).
6303 *) A first attempt at creating official support for shared
6304 libraries through configuration. I've kept it so the
6305 default is static libraries only, and the OpenSSL programs
6306 are always statically linked for now, but there are
6307 preparations for dynamic linking in place.
6308 This has been tested on Linux and Tru64.
6311 *) Randomness polling function for Win9x, as described in:
6312 Peter Gutmann, Software Generation of Practically Strong
6316 *) Fix so PRNG is seeded in req if using an already existing
6320 *) New options to smime application. -inform and -outform
6321 allow alternative formats for the S/MIME message including
6322 PEM and DER. The -content option allows the content to be
6323 specified separately. This should allow things like Netscape
6324 form signing output easier to verify.
6327 *) Fix the ASN1 encoding of tags using the 'long form'.
6330 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6331 STRING types. These convert content octets to and from the
6332 underlying type. The actual tag and length octets are
6333 already assumed to have been read in and checked. These
6334 are needed because all other string types have virtually
6335 identical handling apart from the tag. By having versions
6336 of the ASN1 functions that just operate on content octets
6337 IMPLICIT tagging can be handled properly. It also allows
6338 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6339 and ASN1_INTEGER are identical apart from the tag.
6342 *) Change the handling of OID objects as follows:
6344 - New object identifiers are inserted in objects.txt, following
6345 the syntax given in objects.README.
6346 - objects.pl is used to process obj_mac.num and create a new
6348 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6351 This is currently kind of a hack, and the perl code in objects.pl
6352 isn't very elegant, but it works as I intended. The simplest way
6353 to check that it worked correctly is to look in obj_dat.h and
6354 check the array nid_objs and make sure the objects haven't moved
6355 around (this is important!). Additions are OK, as well as
6356 consistent name changes.
6359 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6362 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6363 The given file adds to whatever has already been seeded into the
6364 random pool through the RANDFILE configuration file option or
6365 environment variable, or the default random state file.
6368 *) mkstack.pl now sorts each macro group into lexical order.
6369 Previously the output order depended on the order the files
6370 appeared in the directory, resulting in needless rewriting
6374 *) Patches to make OpenSSL compile under Win32 again. Mostly
6375 work arounds for the VC++ problem that it treats func() as
6376 func(void). Also stripped out the parts of mkdef.pl that
6377 added extra typesafe functions: these no longer exist.
6380 *) Reorganisation of the stack code. The macros are now all
6381 collected in safestack.h . Each macro is defined in terms of
6382 a "stack macro" of the form SKM_<name>(type, a, b). The
6383 DEBUG_SAFESTACK is now handled in terms of function casts,
6384 this has the advantage of retaining type safety without the
6385 use of additional functions. If DEBUG_SAFESTACK is not defined
6386 then the non typesafe macros are used instead. Also modified the
6387 mkstack.pl script to handle the new form. Needs testing to see
6388 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6389 the default if no major problems. Similar behaviour for ASN1_SET_OF
6390 and PKCS12_STACK_OF.
6393 *) When some versions of IIS use the 'NET' form of private key the
6394 key derivation algorithm is different. Normally MD5(password) is
6395 used as a 128 bit RC4 key. In the modified case
6396 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6397 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6398 as the old Netscape_RSA functions except they have an additional
6399 'sgckey' parameter which uses the modified algorithm. Also added
6400 an -sgckey command line option to the rsa utility. Thanks to
6401 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6402 algorithm to openssl-dev.
6405 *) The evp_local.h macros were using 'c.##kname' which resulted in
6406 invalid expansion on some systems (SCO 5.0.5 for example).
6407 Corrected to 'c.kname'.
6408 [Phillip Porch <root@theporch.com>]
6410 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6411 a STACK of email addresses from a certificate or request, these look
6412 in the subject name and the subject alternative name extensions and
6413 omit any duplicate addresses.
6416 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6417 This makes DSA verification about 2 % faster.
6420 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6421 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6422 plus overhead for 1024 bit moduli).
6423 This makes exponentiations about 0.5 % faster for 1024 bit
6424 exponents (as measured by "openssl speed rsa2048").
6427 *) Rename memory handling macros to avoid conflicts with other
6429 Malloc => OPENSSL_malloc
6430 Malloc_locked => OPENSSL_malloc_locked
6431 Realloc => OPENSSL_realloc
6432 Free => OPENSSL_free
6435 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6436 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6439 *) CygWin32 support.
6440 [John Jarvie <jjarvie@newsguy.com>]
6442 *) The type-safe stack code has been rejigged. It is now only compiled
6443 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6444 by default all type-specific stack functions are "#define"d back to
6445 standard stack functions. This results in more streamlined output
6446 but retains the type-safety checking possibilities of the original
6450 *) The STACK code has been cleaned up, and certain type declarations
6451 that didn't make a lot of sense have been brought in line. This has
6452 also involved a cleanup of sorts in safestack.h to more correctly
6453 map type-safe stack functions onto their plain stack counterparts.
6454 This work has also resulted in a variety of "const"ifications of
6455 lots of the code, especially "_cmp" operations which should normally
6456 be prototyped with "const" parameters anyway.
6459 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6460 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6461 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6462 where all of 'md' is used each time the PRNG is used, but 'state'
6463 is used only indexed by a cyclic counter. As entropy may not be
6464 well distributed from the beginning, 'md' is important as a
6465 chaining variable. However, the output function chains only half
6466 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6467 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6468 in all of 'state' being rewritten, with the new values depending
6469 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6472 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6473 the handshake is continued after ssl_verify_cert_chain();
6474 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6475 can lead to 'unexplainable' connection aborts later.
6476 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6478 *) Major EVP API cipher revision.
6479 Add hooks for extra EVP features. This allows various cipher
6480 parameters to be set in the EVP interface. Support added for variable
6481 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6482 setting of RC2 and RC5 parameters.
6484 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6487 Remove lots of duplicated code from the EVP library. For example *every*
6488 cipher init() function handles the 'iv' in the same way according to the
6489 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6490 for CFB and OFB modes they zero ctx->num.
6492 New functionality allows removal of S/MIME code RC2 hack.
6494 Most of the routines have the same form and so can be declared in terms
6497 By shifting this to the top level EVP_CipherInit() it can be removed from
6498 all individual ciphers. If the cipher wants to handle IVs or keys
6499 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6502 Change lots of functions like EVP_EncryptUpdate() to now return a
6503 value: although software versions of the algorithms cannot fail
6504 any installed hardware versions can.
6507 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6508 this option is set, tolerate broken clients that send the negotiated
6509 protocol version number instead of the requested protocol version
6513 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6514 i.e. non-zero for export ciphersuites, zero otherwise.
6515 Previous versions had this flag inverted, inconsistent with
6516 rsa_tmp_cb (..._TMP_RSA_CB).
6517 [Bodo Moeller; problem reported by Amit Chopra]
6519 *) Add missing DSA library text string. Work around for some IIS
6520 key files with invalid SEQUENCE encoding.
6523 *) Add a document (doc/standards.txt) that list all kinds of standards
6524 and so on that are implemented in OpenSSL.
6527 *) Enhance c_rehash script. Old version would mishandle certificates
6528 with the same subject name hash and wouldn't handle CRLs at all.
6529 Added -fingerprint option to crl utility, to support new c_rehash
6533 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6536 *) Fix for SSL server purpose checking. Server checking was
6537 rejecting certificates which had extended key usage present
6538 but no ssl client purpose.
6539 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6541 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6542 is a little unclear about how a blank password is handled.
6543 Since the password in encoded as a BMPString with terminating
6544 double NULL a zero length password would end up as just the
6545 double NULL. However no password at all is different and is
6546 handled differently in the PKCS#12 key generation code. NS
6547 treats a blank password as zero length. MSIE treats it as no
6548 password on export: but it will try both on import. We now do
6549 the same: PKCS12_parse() tries zero length and no password if
6550 the password is set to "" or NULL (NULL is now a valid password:
6551 it wasn't before) as does the pkcs12 application.
6554 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6555 perror when PEM_read_bio_X509_REQ fails, the error message must
6556 be obtained from the error queue.
6559 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6560 it in ERR_remove_state if appropriate, and change ERR_get_state
6561 accordingly to avoid race conditions (this is necessary because
6562 thread_hash is no longer constant once set).
6565 *) Bugfix for linux-elf makefile.one.
6568 *) RSA_get_default_method() will now cause a default
6569 RSA_METHOD to be chosen if one doesn't exist already.
6570 Previously this was only set during a call to RSA_new()
6571 or RSA_new_method(NULL) meaning it was possible for
6572 RSA_get_default_method() to return NULL.
6575 *) Added native name translation to the existing DSO code
6576 that will convert (if the flag to do so is set) filenames
6577 that are sufficiently small and have no path information
6578 into a canonical native form. Eg. "blah" converted to
6579 "libblah.so" or "blah.dll" etc.
6582 *) New function ERR_error_string_n(e, buf, len) which is like
6583 ERR_error_string(e, buf), but writes at most 'len' bytes
6584 including the 0 terminator. For ERR_error_string_n, 'buf'
6586 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6588 *) CONF library reworked to become more general. A new CONF
6589 configuration file reader "class" is implemented as well as a
6590 new functions (NCONF_*, for "New CONF") to handle it. The now
6591 old CONF_* functions are still there, but are reimplemented to
6592 work in terms of the new functions. Also, a set of functions
6593 to handle the internal storage of the configuration data is
6594 provided to make it easier to write new configuration file
6595 reader "classes" (I can definitely see something reading a
6596 configuration file in XML format, for example), called _CONF_*,
6597 or "the configuration storage API"...
6599 The new configuration file reading functions are:
6601 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6602 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6604 NCONF_default, NCONF_WIN32
6606 NCONF_dump_fp, NCONF_dump_bio
6608 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6609 NCONF_new creates a new CONF object. This works in the same way
6610 as other interfaces in OpenSSL, like the BIO interface.
6611 NCONF_dump_* dump the internal storage of the configuration file,
6612 which is useful for debugging. All other functions take the same
6613 arguments as the old CONF_* functions wth the exception of the
6614 first that must be a `CONF *' instead of a `LHASH *'.
6616 To make it easer to use the new classes with the old CONF_* functions,
6617 the function CONF_set_default_method is provided.
6620 *) Add '-tls1' option to 'openssl ciphers', which was already
6621 mentioned in the documentation but had not been implemented.
6622 (This option is not yet really useful because even the additional
6623 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6626 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6627 OpenSSL-based applications) load shared libraries and bind to
6628 them in a portable way.
6629 [Geoff Thorpe, with contributions from Richard Levitte]
6631 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6633 *) Make sure _lrotl and _lrotr are only used with MSVC.
6635 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6636 (the default implementation of RAND_status).
6638 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6639 to '-clrext' (= clear extensions), as intended and documented.
6640 [Bodo Moeller; inconsistency pointed out by Michael Attili
6643 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6644 was larger than the MD block size.
6645 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6647 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6648 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6649 using the passed key: if the passed key was a private key the result
6650 of X509_print(), for example, would be to print out all the private key
6654 *) des_quad_cksum() byte order bug fix.
6655 [Ulf Möller, using the problem description in krb4-0.9.7, where
6656 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6658 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6660 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6662 *) For easily testing in shell scripts whether some command
6663 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6664 returns with exit code 0 iff no command of the given name is available.
6665 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6666 the output goes to stdout and nothing is printed to stderr.
6667 Additional arguments are always ignored.
6669 Since for each cipher there is a command of the same name,
6670 the 'no-cipher' compilation switches can be tested this way.
6672 ('openssl no-XXX' is not able to detect pseudo-commands such
6673 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6676 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6679 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6680 is set; it will be thrown away anyway because each handshake creates
6682 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6683 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6684 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6685 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6688 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6689 'Q' and 'R' lose their special meanings (quit/renegotiate).
6690 This is part of what -quiet does; unlike -quiet, -ign_eof
6691 does not suppress any output.
6694 *) Add compatibility options to the purpose and trust code. The
6695 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6696 accepts a certificate or CA, this was the previous behaviour,
6697 with all the associated security issues.
6699 X509_TRUST_COMPAT is the old trust behaviour: only and
6700 automatically trust self signed roots in certificate store. A
6701 new trust setting X509_TRUST_DEFAULT is used to specify that
6702 a purpose has no associated trust setting and it should instead
6703 use the value in the default purpose.
6706 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6707 and fix a memory leak.
6710 *) In util/mkerr.pl (which implements 'make errors'), preserve
6711 reason strings from the previous version of the .c file, as
6712 the default to have only downcase letters (and digits) in
6713 automatically generated reasons codes is not always appropriate.
6716 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6717 using strerror. Previously, ERR_reason_error_string() returned
6718 library names as reason strings for SYSerr; but SYSerr is a special
6719 case where small numbers are errno values, not library numbers.
6722 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6723 converts DSA parameters into DH parameters. (When creating parameters,
6724 DSA_generate_parameters is used.)
6727 *) Include 'length' (recommended exponent length) in C code generated
6728 by 'openssl dhparam -C'.
6731 *) The second argument to set_label in perlasm was already being used
6732 so couldn't be used as a "file scope" flag. Moved to third argument
6736 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6737 instead of RAND_bytes for encryption IVs and salts.
6740 *) Include RAND_status() into RAND_METHOD instead of implementing
6741 it only for md_rand.c Otherwise replacing the PRNG by calling
6742 RAND_set_rand_method would be impossible.
6745 *) Don't let DSA_generate_key() enter an infinite loop if the random
6746 number generation fails.
6749 *) New 'rand' application for creating pseudo-random output.
6752 *) Added configuration support for Linux/IA64
6753 [Rolf Haberrecker <rolf@suse.de>]
6755 *) Assembler module support for Mingw32.
6758 *) Shared library support for HPUX (in shlib/).
6759 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6761 *) Shared library support for Solaris gcc.
6762 [Lutz Behnke <behnke@trustcenter.de>]
6764 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6766 *) PKCS7_encrypt() was adding text MIME headers twice because they
6767 were added manually and by SMIME_crlf_copy().
6770 *) In bntest.c don't call BN_rand with zero bits argument.
6771 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6773 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6774 case was implemented. This caused BN_div_recp() to fail occasionally.
6777 *) Add an optional second argument to the set_label() in the perl
6778 assembly language builder. If this argument exists and is set
6779 to 1 it signals that the assembler should use a symbol whose
6780 scope is the entire file, not just the current function. This
6781 is needed with MASM which uses the format label:: for this scope.
6782 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6784 *) Change the ASN1 types so they are typedefs by default. Before
6785 almost all types were #define'd to ASN1_STRING which was causing
6786 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6790 *) Change names of new functions to the new get1/get0 naming
6791 convention: After 'get1', the caller owns a reference count
6792 and has to call ..._free; 'get0' returns a pointer to some
6793 data structure without incrementing reference counters.
6794 (Some of the existing 'get' functions increment a reference
6795 counter, some don't.)
6796 Similarly, 'set1' and 'add1' functions increase reference
6797 counters or duplicate objects.
6800 *) Allow for the possibility of temp RSA key generation failure:
6801 the code used to assume it always worked and crashed on failure.
6804 *) Fix potential buffer overrun problem in BIO_printf().
6805 [Ulf Möller, using public domain code by Patrick Powell; problem
6806 pointed out by David Sacerdote <das33@cornell.edu>]
6808 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6809 RAND_egd() and RAND_status(). In the command line application,
6810 the EGD socket can be specified like a seed file using RANDFILE
6814 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6815 Some CAs (e.g. Verisign) distribute certificates in this form.
6818 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6819 list to exclude them. This means that no special compilation option
6820 is needed to use anonymous DH: it just needs to be included in the
6824 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6825 EVP_MD_type. The old functionality is available in a new macro called
6826 EVP_MD_md(). Change code that uses it and update docs.
6829 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6830 where the 'void *' argument is replaced by a function pointer argument.
6831 Previously 'void *' was abused to point to functions, which works on
6832 many platforms, but is not correct. As these functions are usually
6833 called by macros defined in OpenSSL header files, most source code
6834 should work without changes.
6837 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6838 sections with information on -D... compiler switches used for
6839 compiling the library so that applications can see them. To enable
6840 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6841 must be defined. E.g.,
6842 #define OPENSSL_ALGORITHM_DEFINES
6843 #include <openssl/opensslconf.h>
6844 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6845 [Richard Levitte, Ulf and Bodo Möller]
6847 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6851 *) Change the 'other' type in certificate aux info to a STACK_OF
6852 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6853 the required ASN1 format: arbitrary types determined by an OID.
6856 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6857 argument to 'req'. This is not because the function is newer or
6858 better than others it just uses the work 'NEW' in the certificate
6859 request header lines. Some software needs this.
6862 *) Reorganise password command line arguments: now passwords can be
6863 obtained from various sources. Delete the PEM_cb function and make
6864 it the default behaviour: i.e. if the callback is NULL and the
6865 usrdata argument is not NULL interpret it as a null terminated pass
6866 phrase. If usrdata and the callback are NULL then the pass phrase
6867 is prompted for as usual.
6870 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6871 the support is automatically enabled. The resulting binaries will
6872 autodetect the card and use it if present.
6873 [Ben Laurie and Compaq Inc.]
6875 *) Work around for Netscape hang bug. This sends certificate request
6876 and server done in one record. Since this is perfectly legal in the
6877 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6878 the bugs/SSLv3 entry for more info.
6881 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6884 *) Add -rand argument to smime and pkcs12 applications and read/write
6888 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6891 *) Add command line password options to the remaining applications.
6894 *) Bug fix for BN_div_recp() for numerators with an even number of
6898 *) More tests in bntest.c, and changed test_bn output.
6901 *) ./config recognizes MacOS X now.
6904 *) Bug fix for BN_div() when the first words of num and divsor are
6905 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6908 *) Add support for various broken PKCS#8 formats, and command line
6909 options to produce them.
6912 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6913 get temporary BIGNUMs from a BN_CTX.
6916 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6920 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6921 include a #define from the old name to the new. The original intent
6922 was that statically linked binaries could for example just call
6923 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6924 link with digests. This never worked becayse SSLeay_add_all_digests()
6925 and SSLeay_add_all_ciphers() were in the same source file so calling
6926 one would link with the other. They are now in separate source files.
6929 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6932 *) Use a less unusual form of the Miller-Rabin primality test (it used
6933 a binary algorithm for exponentiation integrated into the Miller-Rabin
6934 loop, our standard modexp algorithms are faster).
6937 *) Support for the EBCDIC character set completed.
6938 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6940 *) Source code cleanups: use const where appropriate, eliminate casts,
6941 use void * instead of char * in lhash.
6944 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6945 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6946 this the server could overwrite ephemeral keys that the client
6950 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6951 using 50 iterations of the Rabin-Miller test.
6953 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6954 iterations of the Rabin-Miller test as required by the appendix
6955 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6956 As BN_is_prime_fasttest includes trial division, DSA parameter
6957 generation becomes much faster.
6959 This implies a change for the callback functions in DSA_is_prime
6960 and DSA_generate_parameters: The callback function is called once
6961 for each positive witness in the Rabin-Miller test, not just
6962 occasionally in the inner loop; and the parameters to the
6963 callback function now provide an iteration count for the outer
6964 loop rather than for the current invocation of the inner loop.
6965 DSA_generate_parameters additionally can call the callback
6966 function with an 'iteration count' of -1, meaning that a
6967 candidate has passed the trial division test (when q is generated
6968 from an application-provided seed, trial division is skipped).
6971 *) New function BN_is_prime_fasttest that optionally does trial
6972 division before starting the Rabin-Miller test and has
6973 an additional BN_CTX * argument (whereas BN_is_prime always
6974 has to allocate at least one BN_CTX).
6975 'callback(1, -1, cb_arg)' is called when a number has passed the
6976 trial division stage.
6979 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6983 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6986 *) New function BN_pseudo_rand().
6989 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6990 bignum version of BN_from_montgomery() with the working code from
6991 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6995 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6996 made it impossible to use the same SSL_SESSION data structure in
6997 SSL2 clients in multiple threads.
7000 *) The return value of RAND_load_file() no longer counts bytes obtained
7001 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7002 to seed the PRNG (previously an explicit byte count was required).
7003 [Ulf Möller, Bodo Möller]
7005 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7006 used (char *) instead of (void *) and had casts all over the place.
7009 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7012 *) Retain source code compatibility for BN_prime_checks macro:
7013 BN_is_prime(..., BN_prime_checks, ...) now uses
7014 BN_prime_checks_for_size to determine the appropriate number of
7015 Rabin-Miller iterations.
7018 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7019 DH_CHECK_P_NOT_SAFE_PRIME.
7020 (Check if this is true? OpenPGP calls them "strong".)
7023 *) Merge the functionality of "dh" and "gendh" programs into a new program
7024 "dhparam". The old programs are retained for now but will handle DH keys
7025 (instead of parameters) in future.
7028 *) Make the ciphers, s_server and s_client programs check the return values
7029 when a new cipher list is set.
7032 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7033 ciphers. Before when the 56bit ciphers were enabled the sorting was
7036 The syntax for the cipher sorting has been extended to support sorting by
7037 cipher-strength (using the strength_bits hard coded in the tables).
7038 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7040 Fix a bug in the cipher-command parser: when supplying a cipher command
7041 string with an "undefined" symbol (neither command nor alphanumeric
7042 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7043 an error is flagged.
7045 Due to the strength-sorting extension, the code of the
7046 ssl_create_cipher_list() function was completely rearranged. I hope that
7047 the readability was also increased :-)
7048 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7050 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7051 for the first serial number and places 2 in the serial number file. This
7052 avoids problems when the root CA is created with serial number zero and
7053 the first user certificate has the same issuer name and serial number
7057 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7058 the new code. Add documentation for this stuff.
7061 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7062 X509_*() to X509at_*() on the grounds that they don't handle X509
7063 structures and behave in an analagous way to the X509v3 functions:
7064 they shouldn't be called directly but wrapper functions should be used
7067 So we also now have some wrapper functions that call the X509at functions
7068 when passed certificate requests. (TO DO: similar things can be done with
7069 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7070 things. Some of these need some d2i or i2d and print functionality
7071 because they handle more complex structures.)
7074 *) Add missing #ifndefs that caused missing symbols when building libssl
7075 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7076 NO_RSA in ssl/s2*.c.
7077 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7079 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7080 has a return value which indicates the quality of the random data
7081 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7082 error queue. New function RAND_pseudo_bytes() generates output that is
7083 guaranteed to be unique but not unpredictable. RAND_add is like
7084 RAND_seed, but takes an extra argument for an entropy estimate
7085 (RAND_seed always assumes full entropy).
7088 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7089 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7090 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7091 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7092 false-positive rate of at most 2^-80 for random input.
7095 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7098 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7099 in the 0.9.5 release), this returns the chain
7100 from an X509_CTX structure with a dup of the stack and all
7101 the X509 reference counts upped: so the stack will exist
7102 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7105 Also make SSL_SESSION_print() print out the verify return
7109 *) Add manpage for the pkcs12 command. Also change the default
7110 behaviour so MAC iteration counts are used unless the new
7111 -nomaciter option is used. This improves file security and
7112 only older versions of MSIE (4.0 for example) need it.
7115 *) Honor the no-xxx Configure options when creating .DEF files.
7118 *) Add PKCS#10 attributes to field table: challengePassword,
7119 unstructuredName and unstructuredAddress. These are taken from
7120 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7121 international characters are used.
7123 More changes to X509_ATTRIBUTE code: allow the setting of types
7124 based on strings. Remove the 'loc' parameter when adding
7125 attributes because these will be a SET OF encoding which is sorted
7129 *) Initial changes to the 'req' utility to allow request generation
7130 automation. This will allow an application to just generate a template
7131 file containing all the field values and have req construct the
7134 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7135 used all over the place including certificate requests and PKCS#7
7136 structures. They are currently handled manually where necessary with
7137 some primitive wrappers for PKCS#7. The new functions behave in a
7138 manner analogous to the X509 extension functions: they allow
7139 attributes to be looked up by NID and added.
7141 Later something similar to the X509V3 code would be desirable to
7142 automatically handle the encoding, decoding and printing of the
7143 more complex types. The string types like challengePassword can
7144 be handled by the string table functions.
7146 Also modified the multi byte string table handling. Now there is
7147 a 'global mask' which masks out certain types. The table itself
7148 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7149 is useful when for example there is only one permissible type
7150 (as in countryName) and using the mask might result in no valid
7154 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7155 SSL_get_peer_finished to allow applications to obtain the latest
7156 Finished messages sent to the peer or expected from the peer,
7157 respectively. (SSL_get_peer_finished is usually the Finished message
7158 actually received from the peer, otherwise the protocol will be aborted.)
7160 As the Finished message are message digests of the complete handshake
7161 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7162 be used for external authentication procedures when the authentication
7163 provided by SSL/TLS is not desired or is not enough.
7166 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7167 the host supports BWX extension and if Compaq C is present on the
7168 $PATH. Just exploiting of the BWX extension results in 20-30%
7169 performance kick for some algorithms, e.g. DES and RC4 to mention
7170 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7174 *) Add support for MS "fast SGC". This is arguably a violation of the
7175 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7176 weak crypto and after checking the certificate is SGC a second one
7177 with strong crypto. MS SGC stops the first handshake after receiving
7178 the server certificate message and sends a second client hello. Since
7179 a server will typically do all the time consuming operations before
7180 expecting any further messages from the client (server key exchange
7181 is the most expensive) there is little difference between the two.
7183 To get OpenSSL to support MS SGC we have to permit a second client
7184 hello message after we have sent server done. In addition we have to
7185 reset the MAC if we do get this second client hello.
7188 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7189 if a DER encoded private key is RSA or DSA traditional format. Changed
7190 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7191 format DER encoded private key. Newer code should use PKCS#8 format which
7192 has the key type encoded in the ASN1 structure. Added DER private key
7193 support to pkcs8 application.
7196 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7197 ciphersuites has been selected (as required by the SSL 3/TLS 1
7198 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7199 is set, we interpret this as a request to violate the specification
7200 (the worst that can happen is a handshake failure, and 'correct'
7201 behaviour would result in a handshake failure anyway).
7204 *) In SSL_CTX_add_session, take into account that there might be multiple
7205 SSL_SESSION structures with the same session ID (e.g. when two threads
7206 concurrently obtain them from an external cache).
7207 The internal cache can handle only one SSL_SESSION with a given ID,
7208 so if there's a conflict, we now throw out the old one to achieve
7212 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7213 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7214 some routines that use cipher OIDs: some ciphers do not have OIDs
7215 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7219 *) Simplify the trust setting structure and code. Now we just have
7220 two sequences of OIDs for trusted and rejected settings. These will
7221 typically have values the same as the extended key usage extension
7222 and any application specific purposes.
7224 The trust checking code now has a default behaviour: it will just
7225 check for an object with the same NID as the passed id. Functions can
7226 be provided to override either the default behaviour or the behaviour
7227 for a given id. SSL client, server and email already have functions
7228 in place for compatibility: they check the NID and also return "trusted"
7229 if the certificate is self signed.
7232 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7233 traditional format into an EVP_PKEY structure.
7236 *) Add a password callback function PEM_cb() which either prompts for
7237 a password if usr_data is NULL or otherwise assumes it is a null
7238 terminated password. Allow passwords to be passed on command line
7239 environment or config files in a few more utilities.
7242 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7243 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7244 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7245 Update documentation.
7248 *) Support for ASN1 "NULL" type. This could be handled before by using
7249 ASN1_TYPE but there wasn't any function that would try to read a NULL
7250 and produce an error if it couldn't. For compatibility we also have
7251 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7252 don't allocate anything because they don't need to.
7255 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7257 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7259 *) Rebuild of the memory allocation routines used by OpenSSL code and
7260 possibly others as well. The purpose is to make an interface that
7261 provide hooks so anyone can build a separate set of allocation and
7262 deallocation routines to be used by OpenSSL, for example memory
7263 pool implementations, or something else, which was previously hard
7264 since Malloc(), Realloc() and Free() were defined as macros having
7265 the values malloc, realloc and free, respectively (except for Win32
7266 compilations). The same is provided for memory debugging code.
7267 OpenSSL already comes with functionality to find memory leaks, but
7268 this gives people a chance to debug other memory problems.
7270 With these changes, a new set of functions and macros have appeared:
7272 CRYPTO_set_mem_debug_functions() [F]
7273 CRYPTO_get_mem_debug_functions() [F]
7274 CRYPTO_dbg_set_options() [F]
7275 CRYPTO_dbg_get_options() [F]
7276 CRYPTO_malloc_debug_init() [M]
7278 The memory debug functions are NULL by default, unless the library
7279 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7280 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7281 gives the standard debugging functions that come with OpenSSL) or
7282 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7283 provided by the library user) must be used. When the standard
7284 debugging functions are used, CRYPTO_dbg_set_options can be used to
7285 request additional information:
7286 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7287 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7289 Also, things like CRYPTO_set_mem_functions will always give the
7290 expected result (the new set of functions is used for allocation
7291 and deallocation) at all times, regardless of platform and compiler
7294 To finish it up, some functions that were never use in any other
7295 way than through macros have a new API and new semantic:
7298 CRYPTO_dbg_realloc()
7301 All macros of value have retained their old syntax.
7302 [Richard Levitte and Bodo Moeller]
7304 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7305 ordering of SMIMECapabilities wasn't in "strength order" and there
7306 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7310 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7311 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7312 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7314 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7315 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7316 functionality to handle multipart/signed properly) and a utility
7317 called 'smime' to call all this stuff. This is based on code I
7318 originally wrote for Celo who have kindly allowed it to be
7319 included in OpenSSL.
7322 *) Add variants des_set_key_checked and des_set_key_unchecked of
7323 des_set_key (aka des_key_sched). Global variable des_check_key
7324 decides which of these is called by des_set_key; this way
7325 des_check_key behaves as it always did, but applications and
7326 the library itself, which was buggy for des_check_key == 1,
7327 have a cleaner way to pick the version they need.
7330 *) New function PKCS12_newpass() which changes the password of a
7334 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7335 dynamic mix. In both cases the ids can be used as an index into the
7336 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7337 functions so they accept a list of the field values and the
7338 application doesn't need to directly manipulate the X509_TRUST
7342 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7346 *) Modify the way the V3 extension code looks up extensions. This now
7347 works in a similar way to the object code: we have some "standard"
7348 extensions in a static table which is searched with OBJ_bsearch()
7349 and the application can add dynamic ones if needed. The file
7350 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7351 updated whenever a new extension is added to the core code and kept
7352 in ext_nid order. There is a simple program 'tabtest.c' which checks
7353 this. New extensions are not added too often so this file can readily
7354 be maintained manually.
7356 There are two big advantages in doing things this way. The extensions
7357 can be looked up immediately and no longer need to be "added" using
7358 X509V3_add_standard_extensions(): this function now does nothing.
7359 [Side note: I get *lots* of email saying the extension code doesn't
7360 work because people forget to call this function]
7361 Also no dynamic allocation is done unless new extensions are added:
7362 so if we don't add custom extensions there is no need to call
7363 X509V3_EXT_cleanup().
7366 *) Modify enc utility's salting as follows: make salting the default. Add a
7367 magic header, so unsalted files fail gracefully instead of just decrypting
7368 to garbage. This is because not salting is a big security hole, so people
7369 should be discouraged from doing it.
7372 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7373 digest to be passed on the command line but it only used this
7374 parameter when signing a certificate. Modified so all relevant
7375 operations are affected by the digest parameter including the
7376 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7377 DSA key was used because it didn't fix the digest.
7380 *) Initial certificate chain verify code. Currently tests the untrusted
7381 certificates for consistency with the verify purpose (which is set
7382 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7384 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7385 this is because it will reject chains with invalid extensions whereas
7386 every previous version of OpenSSL and SSLeay made no checks at all.
7388 Trust code: checks the root CA for the relevant trust settings. Trust
7389 settings have an initial value consistent with the verify purpose: e.g.
7390 if the verify purpose is for SSL client use it expects the CA to be
7391 trusted for SSL client use. However the default value can be changed to
7392 permit custom trust settings: one example of this would be to only trust
7393 certificates from a specific "secure" set of CAs.
7395 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7396 which should be used for version portability: especially since the
7397 verify structure is likely to change more often now.
7399 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7400 to set them. If not set then assume SSL clients will verify SSL servers
7403 Two new options to the verify program: -untrusted allows a set of
7404 untrusted certificates to be passed in and -purpose which sets the
7405 intended purpose of the certificate. If a purpose is set then the
7406 new chain verify code is used to check extension consistency.
7409 *) Support for the authority information access extension.
7412 *) Modify RSA and DSA PEM read routines to transparently handle
7413 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7414 public keys in a format compatible with certificate
7415 SubjectPublicKeyInfo structures. Unfortunately there were already
7416 functions called *_PublicKey_* which used various odd formats so
7417 these are retained for compatibility: however the DSA variants were
7418 never in a public release so they have been deleted. Changed dsa/rsa
7419 utilities to handle the new format: note no releases ever handled public
7420 keys so we should be OK.
7422 The primary motivation for this change is to avoid the same fiasco
7423 that dogs private keys: there are several incompatible private key
7424 formats some of which are standard and some OpenSSL specific and
7425 require various evil hacks to allow partial transparent handling and
7426 even then it doesn't work with DER formats. Given the option anything
7427 other than PKCS#8 should be dumped: but the other formats have to
7428 stay in the name of compatibility.
7430 With public keys and the benefit of hindsight one standard format
7431 is used which works with EVP_PKEY, RSA or DSA structures: though
7432 it clearly returns an error if you try to read the wrong kind of key.
7434 Added a -pubkey option to the 'x509' utility to output the public key.
7435 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7436 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7437 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7438 that do the same as the EVP_PKEY_assign_*() except they up the
7439 reference count of the added key (they don't "swallow" the
7443 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7444 CRLs would fail if the file contained no certificates or no CRLs:
7445 added a new function to read in both types and return the number
7446 read: this means that if none are read it will be an error. The
7447 DER versions of the certificate and CRL reader would always fail
7448 because it isn't possible to mix certificates and CRLs in DER format
7449 without choking one or the other routine. Changed this to just read
7450 a certificate: this is the best we can do. Also modified the code
7451 in apps/verify.c to take notice of return codes: it was previously
7452 attempting to read in certificates from NULL pointers and ignoring
7453 any errors: this is one reason why the cert and CRL reader seemed
7454 to work. It doesn't check return codes from the default certificate
7455 routines: these may well fail if the certificates aren't installed.
7458 *) Code to support otherName option in GeneralName.
7461 *) First update to verify code. Change the verify utility
7462 so it warns if it is passed a self signed certificate:
7463 for consistency with the normal behaviour. X509_verify
7464 has been modified to it will now verify a self signed
7465 certificate if *exactly* the same certificate appears
7466 in the store: it was previously impossible to trust a
7467 single self signed certificate. This means that:
7468 openssl verify ss.pem
7469 now gives a warning about a self signed certificate but
7470 openssl verify -CAfile ss.pem ss.pem
7474 *) For servers, store verify_result in SSL_SESSION data structure
7475 (and add it to external session representation).
7476 This is needed when client certificate verifications fails,
7477 but an application-provided verification callback (set by
7478 SSL_CTX_set_cert_verify_callback) allows accepting the session
7479 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7480 but returns 1): When the session is reused, we have to set
7481 ssl->verify_result to the appropriate error code to avoid
7483 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7485 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7486 case in PKCS7_dataInit() where the signed PKCS7 structure
7487 didn't contain any existing data because it was being created.
7488 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7490 *) Add a salt to the key derivation routines in enc.c. This
7491 forms the first 8 bytes of the encrypted file. Also add a
7492 -S option to allow a salt to be input on the command line.
7495 *) New function X509_cmp(). Oddly enough there wasn't a function
7496 to compare two certificates. We do this by working out the SHA1
7497 hash and comparing that. X509_cmp() will be needed by the trust
7501 *) SSL_get1_session() is like SSL_get_session(), but increments
7502 the reference count in the SSL_SESSION returned.
7503 [Geoff Thorpe <geoff@eu.c2.net>]
7505 *) Fix for 'req': it was adding a null to request attributes.
7506 Also change the X509_LOOKUP and X509_INFO code to handle
7507 certificate auxiliary information.
7510 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7514 *) Add the possibility to add extra information to the memory leak
7515 detecting output, to form tracebacks, showing from where each
7516 allocation was originated: CRYPTO_push_info("constant string") adds
7517 the string plus current file name and line number to a per-thread
7518 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7519 is like calling CYRPTO_pop_info() until the stack is empty.
7520 Also updated memory leak detection code to be multi-thread-safe.
7523 *) Add options -text and -noout to pkcs7 utility and delete the
7524 encryption options which never did anything. Update docs.
7527 *) Add options to some of the utilities to allow the pass phrase
7528 to be included on either the command line (not recommended on
7529 OSes like Unix) or read from the environment. Update the
7530 manpages and fix a few bugs.
7533 *) Add a few manpages for some of the openssl commands.
7536 *) Fix the -revoke option in ca. It was freeing up memory twice,
7537 leaking and not finding already revoked certificates.
7540 *) Extensive changes to support certificate auxiliary information.
7541 This involves the use of X509_CERT_AUX structure and X509_AUX
7542 functions. An X509_AUX function such as PEM_read_X509_AUX()
7543 can still read in a certificate file in the usual way but it
7544 will also read in any additional "auxiliary information". By
7545 doing things this way a fair degree of compatibility can be
7546 retained: existing certificates can have this information added
7547 using the new 'x509' options.
7549 Current auxiliary information includes an "alias" and some trust
7550 settings. The trust settings will ultimately be used in enhanced
7551 certificate chain verification routines: currently a certificate
7552 can only be trusted if it is self signed and then it is trusted
7556 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7557 The problem was that one of the replacement routines had not been working
7558 since SSLeay releases. For now the offending routine has been replaced
7559 with non-optimised assembler. Even so, this now gives around 95%
7560 performance improvement for 1024 bit RSA signs.
7563 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7564 handling. Most clients have the effective key size in bits equal to
7565 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7566 A few however don't do this and instead use the size of the decrypted key
7567 to determine the RC2 key length and the AlgorithmIdentifier to determine
7568 the effective key length. In this case the effective key length can still
7569 be 40 bits but the key length can be 168 bits for example. This is fixed
7570 by manually forcing an RC2 key into the EVP_PKEY structure because the
7571 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7572 the key length and effective key length are equal.
7575 *) Add a bunch of functions that should simplify the creation of
7576 X509_NAME structures. Now you should be able to do:
7577 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7578 and have it automatically work out the correct field type and fill in
7579 the structures. The more adventurous can try:
7580 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7581 and it will (hopefully) work out the correct multibyte encoding.
7584 *) Change the 'req' utility to use the new field handling and multibyte
7585 copy routines. Before the DN field creation was handled in an ad hoc
7586 way in req, ca, and x509 which was rather broken and didn't support
7587 BMPStrings or UTF8Strings. Since some software doesn't implement
7588 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7589 using the dirstring_type option. See the new comment in the default
7590 openssl.cnf for more info.
7593 *) Make crypto/rand/md_rand.c more robust:
7594 - Assure unique random numbers after fork().
7595 - Make sure that concurrent threads access the global counter and
7596 md serializably so that we never lose entropy in them
7597 or use exactly the same state in multiple threads.
7598 Access to the large state is not always serializable because
7599 the additional locking could be a performance killer, and
7600 md should be large enough anyway.
7603 *) New file apps/app_rand.c with commonly needed functionality
7604 for handling the random seed file.
7606 Use the random seed file in some applications that previously did not:
7608 dsaparam -genkey (which also ignored its '-rand' option),
7611 x509 (when signing).
7612 Except on systems with /dev/urandom, it is crucial to have a random
7613 seed file at least for key creation, DSA signing, and for DH exchanges;
7614 for RSA signatures we could do without one.
7616 gendh and gendsa (unlike genrsa) used to read only the first byte
7617 of each file listed in the '-rand' option. The function as previously
7618 found in genrsa is now in app_rand.c and is used by all programs
7619 that support '-rand'.
7622 *) In RAND_write_file, use mode 0600 for creating files;
7623 don't just chmod when it may be too late.
7626 *) Report an error from X509_STORE_load_locations
7627 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7630 *) New function ASN1_mbstring_copy() this copies a string in either
7631 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7632 into an ASN1_STRING type. A mask of permissible types is passed
7633 and it chooses the "minimal" type to use or an error if not type
7637 *) Add function equivalents to the various macros in asn1.h. The old
7638 macros are retained with an M_ prefix. Code inside the library can
7639 use the M_ macros. External code (including the openssl utility)
7640 should *NOT* in order to be "shared library friendly".
7643 *) Add various functions that can check a certificate's extensions
7644 to see if it usable for various purposes such as SSL client,
7645 server or S/MIME and CAs of these types. This is currently
7646 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7647 verification. Also added a -purpose flag to x509 utility to
7648 print out all the purposes.
7651 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7655 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7656 for, obtain and decode and extension and obtain its critical flag.
7657 This allows all the necessary extension code to be handled in a
7658 single function call.
7661 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7662 platforms. See crypto/rc4/rc4_enc.c for further details.
7665 *) New -noout option to asn1parse. This causes no output to be produced
7666 its main use is when combined with -strparse and -out to extract data
7667 from a file (which may not be in ASN.1 format).
7670 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7671 when producing the local key id.
7672 [Richard Levitte <levitte@stacken.kth.se>]
7674 *) New option -dhparam in s_server. This allows a DH parameter file to be
7675 stated explicitly. If it is not stated then it tries the first server
7676 certificate file. The previous behaviour hard coded the filename
7680 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7681 a public key to be input or output. For example:
7682 openssl rsa -in key.pem -pubout -out pubkey.pem
7683 Also added necessary DSA public key functions to handle this.
7686 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7687 in the message. This was handled by allowing
7688 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7689 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7691 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7692 to the end of the strings whereas this didn't. This would cause problems
7693 if strings read with d2i_ASN1_bytes() were later modified.
7694 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7696 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7697 data and it contains EOF it will end up returning an error. This is
7698 caused by input 46 bytes long. The cause is due to the way base64
7699 BIOs find the start of base64 encoded data. They do this by trying a
7700 trial decode on each line until they find one that works. When they
7701 do a flag is set and it starts again knowing it can pass all the
7702 data directly through the decoder. Unfortunately it doesn't reset
7703 the context it uses. This means that if EOF is reached an attempt
7704 is made to pass two EOFs through the context and this causes the
7705 resulting error. This can also cause other problems as well. As is
7706 usual with these problems it takes *ages* to find and the fix is
7707 trivial: move one line.
7708 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7710 *) Ugly workaround to get s_client and s_server working under Windows. The
7711 old code wouldn't work because it needed to select() on sockets and the
7712 tty (for keypresses and to see if data could be written). Win32 only
7713 supports select() on sockets so we select() with a 1s timeout on the
7714 sockets and then see if any characters are waiting to be read, if none
7715 are present then we retry, we also assume we can always write data to
7716 the tty. This isn't nice because the code then blocks until we've
7717 received a complete line of data and it is effectively polling the
7718 keyboard at 1s intervals: however it's quite a bit better than not
7719 working at all :-) A dedicated Windows application might handle this
7720 with an event loop for example.
7723 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7724 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7725 will be called when RSA_sign() and RSA_verify() are used. This is useful
7726 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7727 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7728 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7729 This necessitated the support of an extra signature type NID_md5_sha1
7730 for SSL signatures and modifications to the SSL library to use it instead
7731 of calling RSA_public_decrypt() and RSA_private_encrypt().
7734 *) Add new -verify -CAfile and -CApath options to the crl program, these
7735 will lookup a CRL issuers certificate and verify the signature in a
7736 similar way to the verify program. Tidy up the crl program so it
7737 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7738 less strict. It will now permit CRL extensions even if it is not
7739 a V2 CRL: this will allow it to tolerate some broken CRLs.
7742 *) Initialize all non-automatic variables each time one of the openssl
7743 sub-programs is started (this is necessary as they may be started
7744 multiple times from the "OpenSSL>" prompt).
7745 [Lennart Bang, Bodo Moeller]
7747 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7748 removing all other RSA functionality (this is what NO_RSA does). This
7749 is so (for example) those in the US can disable those operations covered
7750 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7754 *) Non-copying interface to BIO pairs.
7755 (still largely untested)
7758 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7759 ASCII string. This was handled independently in various places before.
7762 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7763 UTF8 strings a character at a time.
7766 *) Use client_version from client hello to select the protocol
7767 (s23_srvr.c) and for RSA client key exchange verification
7768 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7771 *) Add various utility functions to handle SPKACs, these were previously
7772 handled by poking round in the structure internals. Added new function
7773 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7774 print, verify and generate SPKACs. Based on an original idea from
7775 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7778 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7781 *) Allow the config file extension section to be overwritten on the
7782 command line. Based on an original idea from Massimiliano Pala
7783 <madwolf@comune.modena.it>. The new option is called -extensions
7784 and can be applied to ca, req and x509. Also -reqexts to override
7785 the request extensions in req and -crlexts to override the crl extensions
7789 *) Add new feature to the SPKAC handling in ca. Now you can include
7790 the same field multiple times by preceding it by "XXXX." for example:
7793 this is the same syntax as used in the req config file.
7796 *) Allow certificate extensions to be added to certificate requests. These
7797 are specified in a 'req_extensions' option of the req section of the
7798 config file. They can be printed out with the -text option to req but
7799 are otherwise ignored at present.
7802 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7803 data read consists of only the final block it would not decrypted because
7804 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7805 A misplaced 'break' also meant the decrypted final block might not be
7806 copied until the next read.
7809 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7810 a few extra parameters to the DH structure: these will be useful if
7811 for example we want the value of 'q' or implement X9.42 DH.
7814 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7815 provides hooks that allow the default DSA functions or functions on a
7816 "per key" basis to be replaced. This allows hardware acceleration and
7817 hardware key storage to be handled without major modification to the
7818 library. Also added low level modexp hooks and CRYPTO_EX structure and
7819 associated functions.
7822 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7823 as "read only": it can't be written to and the buffer it points to will
7824 not be freed. Reading from a read only BIO is much more efficient than
7825 a normal memory BIO. This was added because there are several times when
7826 an area of memory needs to be read from a BIO. The previous method was
7827 to create a memory BIO and write the data to it, this results in two
7828 copies of the data and an O(n^2) reading algorithm. There is a new
7829 function BIO_new_mem_buf() which creates a read only memory BIO from
7830 an area of memory. Also modified the PKCS#7 routines to use read only
7834 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7835 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7836 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7837 but a retry condition occured while trying to read the rest.
7840 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7841 NID_pkcs7_encrypted by default: this was wrong since this should almost
7842 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7843 the encrypted data type: this is a more sensible place to put it and it
7844 allows the PKCS#12 code to be tidied up that duplicated this
7848 *) Changed obj_dat.pl script so it takes its input and output files on
7849 the command line. This should avoid shell escape redirection problems
7853 *) Initial support for certificate extension requests, these are included
7854 in things like Xenroll certificate requests. Included functions to allow
7855 extensions to be obtained and added.
7858 *) -crlf option to s_client and s_server for sending newlines as
7859 CRLF (as required by many protocols).
7862 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7864 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7865 [Ralf S. Engelschall]
7867 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7868 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7870 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7874 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7875 DH parameters/keys (q is lost during that conversion, but the resulting
7876 DH parameters contain its length).
7878 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7879 much faster than DH_generate_parameters (which creates parameters
7880 where p = 2*q + 1), and also the smaller q makes DH computations
7881 much more efficient (160-bit exponentiation instead of 1024-bit
7882 exponentiation); so this provides a convenient way to support DHE
7883 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7884 utter importance to use
7885 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7887 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7888 when such DH parameters are used, because otherwise small subgroup
7889 attacks may become possible!
7892 *) Avoid memory leak in i2d_DHparams.
7895 *) Allow the -k option to be used more than once in the enc program:
7896 this allows the same encrypted message to be read by multiple recipients.
7899 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7900 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7901 it will always use the numerical form of the OID, even if it has a short
7905 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7906 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7907 otherwise bn_mod_exp was called. In the case of hardware keys for example
7908 no private key components need be present and it might store extra data
7909 in the RSA structure, which cannot be accessed from bn_mod_exp.
7910 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7911 private key operations.
7914 *) Added support for SPARC Linux.
7917 *) pem_password_cb function type incompatibly changed from
7918 typedef int pem_password_cb(char *buf, int size, int rwflag);
7920 ....(char *buf, int size, int rwflag, void *userdata);
7921 so that applications can pass data to their callbacks:
7922 The PEM[_ASN1]_{read,write}... functions and macros now take an
7923 additional void * argument, which is just handed through whenever
7924 the password callback is called.
7925 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7927 New function SSL_CTX_set_default_passwd_cb_userdata.
7929 Compatibility note: As many C implementations push function arguments
7930 onto the stack in reverse order, the new library version is likely to
7931 interoperate with programs that have been compiled with the old
7932 pem_password_cb definition (PEM_whatever takes some data that
7933 happens to be on the stack as its last argument, and the callback
7934 just ignores this garbage); but there is no guarantee whatsoever that
7937 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7938 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7939 problems not only on Windows, but also on some Unix platforms.
7940 To avoid problematic command lines, these definitions are now in an
7941 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7942 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7945 *) MIPS III/IV assembler module is reimplemented.
7948 *) More DES library cleanups: remove references to srand/rand and
7949 delete an unused file.
7952 *) Add support for the the free Netwide assembler (NASM) under Win32,
7953 since not many people have MASM (ml) and it can be hard to obtain.
7954 This is currently experimental but it seems to work OK and pass all
7955 the tests. Check out INSTALL.W32 for info.
7958 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7959 without temporary keys kept an extra copy of the server key,
7960 and connections with temporary keys did not free everything in case
7964 *) New function RSA_check_key and new openssl rsa option -check
7965 for verifying the consistency of RSA keys.
7966 [Ulf Moeller, Bodo Moeller]
7968 *) Various changes to make Win32 compile work:
7969 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7970 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7971 comparison" warnings.
7972 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7975 *) Add a debugging option to PKCS#5 v2 key generation function: when
7976 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7977 derived keys are printed to stderr.
7980 *) Copy the flags in ASN1_STRING_dup().
7981 [Roman E. Pavlov <pre@mo.msk.ru>]
7983 *) The x509 application mishandled signing requests containing DSA
7984 keys when the signing key was also DSA and the parameters didn't match.
7986 It was supposed to omit the parameters when they matched the signing key:
7987 the verifying software was then supposed to automatically use the CA's
7988 parameters if they were absent from the end user certificate.
7990 Omitting parameters is no longer recommended. The test was also
7991 the wrong way round! This was probably due to unusual behaviour in
7992 EVP_cmp_parameters() which returns 1 if the parameters match.
7993 This meant that parameters were omitted when they *didn't* match and
7994 the certificate was useless. Certificates signed with 'ca' didn't have
7996 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7998 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7999 The interface is as follows:
8000 Applications can use
8001 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8002 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8003 "off" is now the default.
8004 The library internally uses
8005 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8006 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8007 to disable memory-checking temporarily.
8009 Some inconsistent states that previously were possible (and were
8010 even the default) are now avoided.
8012 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8013 with each memory chunk allocated; this is occasionally more helpful
8014 than just having a counter.
8016 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8018 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8022 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8023 which largely parallels "options", but is for changing API behaviour,
8024 whereas "options" are about protocol behaviour.
8025 Initial "mode" flags are:
8027 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8028 a single record has been written.
8029 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8030 retries use the same buffer location.
8031 (But all of the contents must be
8035 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8038 *) Fix problems with no-hmac etc.
8039 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8041 *) New functions RSA_get_default_method(), RSA_set_method() and
8042 RSA_get_method(). These allows replacement of RSA_METHODs without having
8043 to mess around with the internals of an RSA structure.
8046 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8047 Also really enable memory leak checks in openssl.c and in some
8049 [Chad C. Mulligan, Bodo Moeller]
8051 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8052 up the length of negative integers. This has now been simplified to just
8053 store the length when it is first determined and use it later, rather
8054 than trying to keep track of where data is copied and updating it to
8056 [Steve Henson, reported by Brien Wheeler
8057 <bwheeler@authentica-security.com>]
8059 *) Add a new function PKCS7_signatureVerify. This allows the verification
8060 of a PKCS#7 signature but with the signing certificate passed to the
8061 function itself. This contrasts with PKCS7_dataVerify which assumes the
8062 certificate is present in the PKCS#7 structure. This isn't always the
8063 case: certificates can be omitted from a PKCS#7 structure and be
8064 distributed by "out of band" means (such as a certificate database).
8067 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8068 function prototypes in pem.h, also change util/mkdef.pl to add the
8069 necessary function names.
8072 *) mk1mf.pl (used by Windows builds) did not properly read the
8073 options set by Configure in the top level Makefile, and Configure
8074 was not even able to write more than one option correctly.
8075 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8078 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8079 file to be loaded from a BIO or FILE pointer. The BIO version will
8080 for example allow memory BIOs to contain config info.
8083 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8084 Whoever hopes to achieve shared-library compatibility across versions
8085 must use this, not the compile-time macro.
8086 (Exercise 0.9.4: Which is the minimum library version required by
8088 Note: All this applies only to multi-threaded programs, others don't
8092 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8093 through a BIO pair triggered the default case, i.e.
8094 SSLerr(...,SSL_R_UNKNOWN_STATE).
8097 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8098 can use the SSL library even if none of the specific BIOs is
8102 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8103 for the encoded length.
8104 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8106 *) Add initial documentation of the X509V3 functions.
8109 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8110 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8111 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8112 secure PKCS#8 private key format with a high iteration count.
8115 *) Fix determination of Perl interpreter: A perl or perl5
8116 _directory_ in $PATH was also accepted as the interpreter.
8117 [Ralf S. Engelschall]
8119 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8120 wrong with it but it was very old and did things like calling
8121 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8125 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8126 to use the new extension code.
8129 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8130 with macros. This should make it easier to change their form, add extra
8131 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8135 *) Add to configuration table a new entry that can specify an alternative
8136 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8137 according to Mark Crispin <MRC@Panda.COM>.
8141 *) DES CBC did not update the IV. Weird.
8144 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8145 Changing the behaviour of the former might break existing programs --
8146 where IV updating is needed, des_ncbc_encrypt can be used.
8149 *) When bntest is run from "make test" it drives bc to check its
8150 calculations, as well as internally checking them. If an internal check
8151 fails, it needs to cause bc to give a non-zero result or make test carries
8152 on without noticing the failure. Fixed.
8155 *) DES library cleanups.
8158 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8159 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8160 ciphers. NOTE: although the key derivation function has been verified
8161 against some published test vectors it has not been extensively tested
8162 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8166 *) Instead of "mkdir -p", which is not fully portable, use new
8167 Perl script "util/mkdir-p.pl".
8170 *) Rewrite the way password based encryption (PBE) is handled. It used to
8171 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8172 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8173 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8174 the 'parameter' field of the AlgorithmIdentifier is passed to the
8175 underlying key generation function so it must do its own ASN1 parsing.
8176 This has also changed the EVP_PBE_CipherInit() function which now has a
8177 'parameter' argument instead of literal salt and iteration count values
8178 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8181 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8182 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8183 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8184 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8185 value was just used as a "magic string" and not used directly its
8186 value doesn't matter.
8189 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8193 *) "linux-sparc64" configuration (ultrapenguin).
8194 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8195 "linux-sparc" configuration.
8196 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8198 *) config now generates no-xxx options for missing ciphers.
8201 *) Support the EBCDIC character set (work in progress).
8202 File ebcdic.c not yet included because it has a different license.
8203 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8205 *) Support BS2000/OSD-POSIX.
8206 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8208 *) Make callbacks for key generation use void * instead of char *.
8211 *) Make S/MIME samples compile (not yet tested).
8214 *) Additional typesafe stacks.
8217 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8221 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8223 *) New configuration variant "sco5-gcc".
8225 *) Updated some demos.
8226 [Sean O Riordain, Wade Scholine]
8228 *) Add missing BIO_free at exit of pkcs12 application.
8231 *) Fix memory leak in conf.c.
8234 *) Updates for Win32 to assembler version of MD5.
8237 *) Set #! path to perl in apps/der_chop to where we found it
8238 instead of using a fixed path.
8241 *) SHA library changes for irix64-mips4-cc.
8244 *) Improvements for VMS support.
8248 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8250 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8251 This also avoids the problems with SC4.2 and unpatched SC5.
8252 [Andy Polyakov <appro@fy.chalmers.se>]
8254 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8255 These are required because of the typesafe stack would otherwise break
8256 existing code. If old code used a structure member which used to be STACK
8257 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8258 sk_num or sk_value it would produce an error because the num, data members
8259 are not present in STACK_OF. Now it just produces a warning. sk_set
8260 replaces the old method of assigning a value to sk_value
8261 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8262 that does this will no longer work (and should use sk_set instead) but
8263 this could be regarded as a "questionable" behaviour anyway.
8266 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8267 correctly handle encrypted S/MIME data.
8270 *) Change type of various DES function arguments from des_cblock
8271 (which means, in function argument declarations, pointer to char)
8272 to des_cblock * (meaning pointer to array with 8 char elements),
8273 which allows the compiler to do more typechecking; it was like
8274 that back in SSLeay, but with lots of ugly casts.
8276 Introduce new type const_des_cblock.
8279 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8280 problems: find RecipientInfo structure that matches recipient certificate
8281 and initialise the ASN1 structures properly based on passed cipher.
8284 *) Belatedly make the BN tests actually check the results.
8287 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8288 to and from BNs: it was completely broken. New compilation option
8289 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8290 key elements as negative integers.
8293 *) Reorganize and speed up MD5.
8294 [Andy Polyakov <appro@fy.chalmers.se>]
8297 [Richard Levitte <richard@levitte.org>]
8299 *) New option -out to asn1parse to allow the parsed structure to be
8300 output to a file. This is most useful when combined with the -strparse
8301 option to examine the output of things like OCTET STRINGS.
8304 *) Make SSL library a little more fool-proof by not requiring any longer
8305 that SSL_set_{accept,connect}_state be called before
8306 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8307 in many applications because usually everything *appeared* to work as
8308 intended anyway -- now it really works as intended).
8311 *) Move openssl.cnf out of lib/.
8314 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8315 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8316 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8317 [Ralf S. Engelschall]
8319 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8320 handle PKCS#7 enveloped data properly.
8321 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8323 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8324 copying pointers. The cert_st handling is changed by this in
8325 various ways (and thus what used to be known as ctx->default_cert
8326 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8327 any longer when s->cert does not give us what we need).
8328 ssl_cert_instantiate becomes obsolete by this change.
8329 As soon as we've got the new code right (possibly it already is?),
8330 we have solved a couple of bugs of the earlier code where s->cert
8331 was used as if it could not have been shared with other SSL structures.
8333 Note that using the SSL API in certain dirty ways now will result
8334 in different behaviour than observed with earlier library versions:
8335 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8336 does not influence s as it used to.
8338 In order to clean up things more thoroughly, inside SSL_SESSION
8339 we don't use CERT any longer, but a new structure SESS_CERT
8340 that holds per-session data (if available); currently, this is
8341 the peer's certificate chain and, for clients, the server's certificate
8342 and temporary key. CERT holds only those values that can have
8343 meaningful defaults in an SSL_CTX.
8346 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8347 from the internal representation. Various PKCS#7 fixes: remove some
8348 evil casts and set the enc_dig_alg field properly based on the signing
8352 *) Allow PKCS#12 password to be set from the command line or the
8353 environment. Let 'ca' get its config file name from the environment
8354 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8358 *) Allow certificate policies extension to use an IA5STRING for the
8359 organization field. This is contrary to the PKIX definition but
8360 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8364 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8365 without disallowing inline assembler and the like for non-pedantic builds.
8368 *) Support Borland C++ builder.
8369 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8374 *) SHA-1 cleanups and performance enhancements.
8375 [Andy Polyakov <appro@fy.chalmers.se>]
8377 *) Sparc v8plus assembler for the bignum library.
8378 [Andy Polyakov <appro@fy.chalmers.se>]
8380 *) Accept any -xxx and +xxx compiler options in Configure.
8383 *) Update HPUX configuration.
8386 *) Add missing sk_<type>_unshift() function to safestack.h
8387 [Ralf S. Engelschall]
8389 *) New function SSL_CTX_use_certificate_chain_file that sets the
8390 "extra_cert"s in addition to the certificate. (This makes sense
8391 only for "PEM" format files, as chains as a whole are not
8395 *) Support verify_depth from the SSL API.
8396 x509_vfy.c had what can be considered an off-by-one-error:
8397 Its depth (which was not part of the external interface)
8398 was actually counting the number of certificates in a chain;
8399 now it really counts the depth.
8402 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8403 instead of X509err, which often resulted in confusing error
8404 messages since the error codes are not globally unique
8405 (e.g. an alleged error in ssl3_accept when a certificate
8406 didn't match the private key).
8408 *) New function SSL_CTX_set_session_id_context that allows to set a default
8409 value (so that you don't need SSL_set_session_id_context for each
8410 connection using the SSL_CTX).
8413 *) OAEP decoding bug fix.
8416 *) Support INSTALL_PREFIX for package builders, as proposed by
8420 *) New Configure options "threads" and "no-threads". For systems
8421 where the proper compiler options are known (currently Solaris
8422 and Linux), "threads" is the default.
8425 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8428 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8429 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8430 such as /usr/local/bin.
8433 *) "make linux-shared" to build shared libraries.
8434 [Niels Poppe <niels@netbox.org>]
8436 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8439 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8440 extension adding in x509 utility.
8443 *) Remove NOPROTO sections and error code comments.
8446 *) Partial rewrite of the DEF file generator to now parse the ANSI
8450 *) New Configure options --prefix=DIR and --openssldir=DIR.
8453 *) Complete rewrite of the error code script(s). It is all now handled
8454 by one script at the top level which handles error code gathering,
8455 header rewriting and C source file generation. It should be much better
8456 than the old method: it now uses a modified version of Ulf's parser to
8457 read the ANSI prototypes in all header files (thus the old K&R definitions
8458 aren't needed for error creation any more) and do a better job of
8459 translating function codes into names. The old 'ASN1 error code imbedded
8460 in a comment' is no longer necessary and it doesn't use .err files which
8461 have now been deleted. Also the error code call doesn't have to appear all
8462 on one line (which resulted in some large lines...).
8465 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8468 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8469 0 (which usually indicates a closed connection), but continue reading.
8472 *) Fix some race conditions.
8475 *) Add support for CRL distribution points extension. Add Certificate
8476 Policies and CRL distribution points documentation.
8479 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8482 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8483 8 of keying material. Merlin has also confirmed interop with this fix
8484 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8485 [Merlin Hughes <merlin@baltimore.ie>]
8487 *) Fix lots of warnings.
8488 [Richard Levitte <levitte@stacken.kth.se>]
8490 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8491 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8492 [Richard Levitte <levitte@stacken.kth.se>]
8494 *) Fix problems with sizeof(long) == 8.
8495 [Andy Polyakov <appro@fy.chalmers.se>]
8497 *) Change functions to ANSI C.
8500 *) Fix typos in error codes.
8501 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8503 *) Remove defunct assembler files from Configure.
8506 *) SPARC v8 assembler BIGNUM implementation.
8507 [Andy Polyakov <appro@fy.chalmers.se>]
8509 *) Support for Certificate Policies extension: both print and set.
8510 Various additions to support the r2i method this uses.
8513 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8514 return a const string when you are expecting an allocated buffer.
8517 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8518 types DirectoryString and DisplayText.
8521 *) Add code to allow r2i extensions to access the configuration database,
8522 add an LHASH database driver and add several ctx helper functions.
8525 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8526 fail when they extended the size of a BIGNUM.
8529 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8530 support typesafe stack.
8533 *) Fix typo in SSL_[gs]et_options().
8534 [Nils Frostberg <nils@medcom.se>]
8536 *) Delete various functions and files that belonged to the (now obsolete)
8537 old X509V3 handling code.
8540 *) New Configure option "rsaref".
8543 *) Don't auto-generate pem.h.
8546 *) Introduce type-safe ASN.1 SETs.
8549 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8550 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8552 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8553 that links with OpenSSL (well at least cause lots of warnings), but fear
8554 not: the conversion is trivial, and it eliminates loads of evil casts. A
8555 few STACKed things have been converted already. Feel free to convert more.
8556 In the fullness of time, I'll do away with the STACK type altogether.
8559 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8560 specified in <certfile> by updating the entry in the index.txt file.
8561 This way one no longer has to edit the index.txt file manually for
8562 revoking a certificate. The -revoke option does the gory details now.
8563 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8565 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8566 `-text' option at all and this way the `-noout -text' combination was
8567 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8568 [Ralf S. Engelschall]
8570 *) Make sure a corresponding plain text error message exists for the
8571 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8572 verify callback function determined that a certificate was revoked.
8573 [Ralf S. Engelschall]
8575 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8576 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8577 all available cipers including rc5, which was forgotten until now.
8578 In order to let the testing shell script know which algorithms
8579 are available, a new (up to now undocumented) command
8580 "openssl list-cipher-commands" is used.
8583 *) Bugfix: s_client occasionally would sleep in select() when
8584 it should have checked SSL_pending() first.
8587 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8588 the raw DSA values prior to ASN.1 encoding.
8591 *) Tweaks to Configure
8592 [Niels Poppe <niels@netbox.org>]
8594 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8598 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8601 *) New config option to avoid instructions that are illegal on the 80386.
8602 The default code is faster, but requires at least a 486.
8605 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8606 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8607 same as SSL2_VERSION anyway.
8610 *) New "-showcerts" option for s_client.
8613 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8614 application. Various cleanups and fixes.
8617 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8618 modify error routines to work internally. Add error codes and PBE init
8619 to library startup routines.
8622 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8623 packing functions to asn1 and evp. Changed function names and error
8624 codes along the way.
8627 *) PKCS12 integration: and so it begins... First of several patches to
8628 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8629 objects to objects.h
8632 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8633 and display support for Thawte strong extranet extension.
8636 *) Add LinuxPPC support.
8637 [Jeff Dubrule <igor@pobox.org>]
8639 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8640 bn_div_words in alpha.s.
8641 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8643 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8644 OAEP isn't supported when OpenSSL is built with RSAref.
8645 [Ulf Moeller <ulf@fitug.de>]
8647 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8648 so they no longer are missing under -DNOPROTO.
8649 [Soren S. Jorvang <soren@t.dk>]
8652 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8654 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8655 doesn't work when the session is reused. Coming soon!
8658 *) Fix a security hole, that allows sessions to be reused in the wrong
8659 context thus bypassing client cert protection! All software that uses
8660 client certs and session caches in multiple contexts NEEDS PATCHING to
8661 allow session reuse! A fuller solution is in the works.
8662 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8664 *) Some more source tree cleanups (removed obsolete files
8665 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8666 permission on "config" script to be executable) and a fix for the INSTALL
8668 [Ulf Moeller <ulf@fitug.de>]
8670 *) Remove some legacy and erroneous uses of malloc, free instead of
8672 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8674 *) Make rsa_oaep_test return non-zero on error.
8675 [Ulf Moeller <ulf@fitug.de>]
8677 *) Add support for native Solaris shared libraries. Configure
8678 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8679 if someone would make that last step automatic.
8680 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8682 *) ctx_size was not built with the right compiler during "make links". Fixed.
8685 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8686 except NULL ciphers". This means the default cipher list will no longer
8687 enable NULL ciphers. They need to be specifically enabled e.g. with
8688 the string "DEFAULT:eNULL".
8691 *) Fix to RSA private encryption routines: if p < q then it would
8692 occasionally produce an invalid result. This will only happen with
8693 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8696 *) Be less restrictive and allow also `perl util/perlpath.pl
8697 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8698 because this way one can also use an interpreter named `perl5' (which is
8699 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8700 installed as `perl').
8701 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8703 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8704 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8706 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8707 advapi32.lib to Win32 build and change the pem test comparision
8708 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8709 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8710 and crypto/des/ede_cbcm_enc.c.
8713 *) DES quad checksum was broken on big-endian architectures. Fixed.
8716 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8717 Win32 test batch file so it (might) work again. The Win32 test batch file
8718 is horrible: I feel ill....
8721 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8722 in e_os.h. Audit of header files to check ANSI and non ANSI
8723 sections: 10 functions were absent from non ANSI section and not exported
8724 from Windows DLLs. Fixed up libeay.num for new functions.
8727 *) Make `openssl version' output lines consistent.
8728 [Ralf S. Engelschall]
8730 *) Fix Win32 symbol export lists for BIO functions: Added
8731 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8732 to ms/libeay{16,32}.def.
8733 [Ralf S. Engelschall]
8735 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8736 fine under Unix and passes some trivial tests I've now added. But the
8737 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8738 added to make sure no one expects that this stuff really works in the
8739 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8740 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8742 [Ralf S. Engelschall]
8744 *) Fix the generation of two part addresses in perl.
8745 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8747 *) Add config entry for Linux on MIPS.
8748 [John Tobey <jtobey@channel1.com>]
8750 *) Make links whenever Configure is run, unless we are on Windoze.
8753 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8754 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8758 *) Add a useful kludge to allow package maintainers to specify compiler and
8759 other platforms details on the command line without having to patch the
8760 Configure script everytime: One now can use ``perl Configure
8761 <id>:<details>'', i.e. platform ids are allowed to have details appended
8762 to them (seperated by colons). This is treated as there would be a static
8763 pre-configured entry in Configure's %table under key <id> with value
8764 <details> and ``perl Configure <id>'' is called. So, when you want to
8765 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8766 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8767 now, which overrides the FreeBSD-elf entry on-the-fly.
8768 [Ralf S. Engelschall]
8770 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8773 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8774 on the `perl Configure ...' command line. This way one can compile
8775 OpenSSL libraries with Position Independent Code (PIC) which is needed
8776 for linking it into DSOs.
8777 [Ralf S. Engelschall]
8779 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8783 *) Cleaned up the LICENSE document: The official contact for any license
8784 questions now is the OpenSSL core team under openssl-core@openssl.org.
8785 And add a paragraph about the dual-license situation to make sure people
8786 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8787 to the OpenSSL toolkit.
8788 [Ralf S. Engelschall]
8790 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8791 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8792 Additonally cleaned up the `make links' target: Remove unnecessary
8793 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8794 to speed processing and no longer clutter the display with confusing
8795 stuff. Instead only the actually done links are displayed.
8796 [Ralf S. Engelschall]
8798 *) Permit null encryption ciphersuites, used for authentication only. It used
8799 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8800 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8804 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8805 signed attributes when verifying signatures (this would break them),
8806 the detached data encoding was wrong and public keys obtained using
8807 X509_get_pubkey() weren't freed.
8810 *) Add text documentation for the BUFFER functions. Also added a work around
8811 to a Win95 console bug. This was triggered by the password read stuff: the
8812 last character typed gets carried over to the next fread(). If you were
8813 generating a new cert request using 'req' for example then the last
8814 character of the passphrase would be CR which would then enter the first
8818 *) Added the new `Includes OpenSSL Cryptography Software' button as
8819 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8820 button and can be used by applications based on OpenSSL to show the
8821 relationship to the OpenSSL project.
8822 [Ralf S. Engelschall]
8824 *) Remove confusing variables in function signatures in files
8825 ssl/ssl_lib.c and ssl/ssl.h.
8826 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8828 *) Don't install bss_file.c under PREFIX/include/
8829 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8831 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8832 functions that return function pointers and has support for NT specific
8833 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8834 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8835 unsigned to signed types: this was killing the Win32 compile.
8838 *) Add new certificate file to stack functions,
8839 SSL_add_dir_cert_subjects_to_stack() and
8840 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8841 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8842 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8843 This means that Apache-SSL and similar packages don't have to mess around
8844 to add as many CAs as they want to the preferred list.
8847 *) Experiment with doxygen documentation. Currently only partially applied to
8849 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8850 openssl.doxy as the configuration file.
8853 *) Get rid of remaining C++-style comments which strict C compilers hate.
8854 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8856 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8857 compiled in by default: it has problems with large keys.
8860 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8861 DH private keys and/or callback functions which directly correspond to
8862 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8863 is needed for applications which have to configure certificates on a
8864 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8866 For the RSA certificate situation is makes no difference, but
8867 for the DSA certificate situation this fixes the "no shared cipher"
8868 problem where the OpenSSL cipher selection procedure failed because the
8869 temporary keys were not overtaken from the context and the API provided
8870 no way to reconfigure them.
8871 The new functions now let applications reconfigure the stuff and they
8872 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8873 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8874 non-public-API function ssl_cert_instantiate() is used as a helper
8875 function and also to reduce code redundancy inside ssl_rsa.c.
8876 [Ralf S. Engelschall]
8878 *) Move s_server -dcert and -dkey options out of the undocumented feature
8879 area because they are useful for the DSA situation and should be
8880 recognized by the users.
8881 [Ralf S. Engelschall]
8883 *) Fix the cipher decision scheme for export ciphers: the export bits are
8884 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8885 SSL_EXP_MASK. So, the original variable has to be used instead of the
8886 already masked variable.
8887 [Richard Levitte <levitte@stacken.kth.se>]
8889 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8890 [Richard Levitte <levitte@stacken.kth.se>]
8892 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8893 from `int' to `unsigned int' because it's a length and initialized by
8894 EVP_DigestFinal() which expects an `unsigned int *'.
8895 [Richard Levitte <levitte@stacken.kth.se>]
8897 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8898 script. Instead use the usual Shell->Perl transition trick.
8899 [Ralf S. Engelschall]
8901 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8902 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8903 -noout -modulus' as it's already the case for `openssl rsa -noout
8904 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8905 currently the public key is printed (a decision which was already done by
8906 `openssl dsa -modulus' in the past) which serves a similar purpose.
8907 Additionally the NO_RSA no longer completely removes the whole -modulus
8908 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8910 [Ralf S. Engelschall]
8912 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8913 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8914 [Arne Ansper <arne@ats.cyber.ee>]
8916 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8917 to be added. Now both 'req' and 'ca' can use new objects defined in the
8921 *) Add cool BIO that does syslog (or event log on NT).
8922 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8924 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8925 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8926 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8927 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8930 *) Add preliminary config info for new extension code.
8933 *) Make RSA_NO_PADDING really use no padding.
8934 [Ulf Moeller <ulf@fitug.de>]
8936 *) Generate errors when private/public key check is done.
8939 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8940 for some CRL extensions and new objects added.
8943 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8944 key usage extension and fuller support for authority key id.
8947 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8948 padding method for RSA, which is recommended for new applications in PKCS
8949 #1 v2.0 (RFC 2437, October 1998).
8950 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8951 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8952 against Bleichbacher's attack on RSA.
8953 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8956 *) Updates to the new SSL compression code
8957 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8959 *) Fix so that the version number in the master secret, when passed
8960 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8961 (because the server will not accept higher), that the version number
8962 is 0x03,0x01, not 0x03,0x00
8963 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8965 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8966 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8967 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8970 *) Support for RAW extensions where an arbitrary extension can be
8971 created by including its DER encoding. See apps/openssl.cnf for
8975 *) Make sure latest Perl versions don't interpret some generated C array
8976 code as Perl array code in the crypto/err/err_genc.pl script.
8977 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8979 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8980 not many people have the assembler. Various Win32 compilation fixes and
8981 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8985 *) Modify configure script 'Configure' to automatically create crypto/date.h
8986 file under Win32 and also build pem.h from pem.org. New script
8987 util/mkfiles.pl to create the MINFO file on environments that can't do a
8988 'make files': perl util/mkfiles.pl >MINFO should work.
8991 *) Major rework of DES function declarations, in the pursuit of correctness
8992 and purity. As a result, many evil casts evaporated, and some weirdness,
8993 too. You may find this causes warnings in your code. Zapping your evil
8994 casts will probably fix them. Mostly.
8997 *) Fix for a typo in asn1.h. Bug fix to object creation script
8998 obj_dat.pl. It considered a zero in an object definition to mean
8999 "end of object": none of the objects in objects.h have any zeros
9000 so it wasn't spotted.
9001 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9003 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9004 Masking (CBCM). In the absence of test vectors, the best I have been able
9005 to do is check that the decrypt undoes the encrypt, so far. Send me test
9006 vectors if you have them.
9009 *) Correct calculation of key length for export ciphers (too much space was
9010 allocated for null ciphers). This has not been tested!
9013 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9014 message is now correct (it understands "crypto" and "ssl" on its
9015 command line). There is also now an "update" option. This will update
9016 the util/ssleay.num and util/libeay.num files with any new functions.
9018 perl util/mkdef.pl crypto ssl update
9019 it will update them.
9022 *) Overhauled the Perl interface (perl/*):
9023 - ported BN stuff to OpenSSL's different BN library
9024 - made the perl/ source tree CVS-aware
9025 - renamed the package from SSLeay to OpenSSL (the files still contain
9026 their history because I've copied them in the repository)
9027 - removed obsolete files (the test scripts will be replaced
9028 by better Test::Harness variants in the future)
9029 [Ralf S. Engelschall]
9031 *) First cut for a very conservative source tree cleanup:
9032 1. merge various obsolete readme texts into doc/ssleay.txt
9033 where we collect the old documents and readme texts.
9034 2. remove the first part of files where I'm already sure that we no
9035 longer need them because of three reasons: either they are just temporary
9036 files which were left by Eric or they are preserved original files where
9037 I've verified that the diff is also available in the CVS via "cvs diff
9038 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9039 the crypto/md/ stuff).
9040 [Ralf S. Engelschall]
9042 *) More extension code. Incomplete support for subject and issuer alt
9043 name, issuer and authority key id. Change the i2v function parameters
9044 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9045 what that's for :-) Fix to ASN1 macro which messed up
9046 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9049 *) Preliminary support for ENUMERATED type. This is largely copied from the
9053 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9054 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9056 *) Make sure `make rehash' target really finds the `openssl' program.
9057 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9059 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9060 like to hear about it if this slows down other processors.
9063 *) Add CygWin32 platform information to Configure script.
9064 [Alan Batie <batie@aahz.jf.intel.com>]
9066 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9067 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9069 *) New program nseq to manipulate netscape certificate sequences
9072 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9076 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9077 but the BN code had some problems that would cause failures when
9078 doing certificate verification and some other functions.
9079 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9081 *) Add ASN1 and PEM code to support netscape certificate sequences.
9084 *) Add ASN1 and PEM code to support netscape certificate sequences.
9087 *) Add several PKIX and private extended key usage OIDs.
9090 *) Modify the 'ca' program to handle the new extension code. Modify
9091 openssl.cnf for new extension format, add comments.
9094 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9095 and add a sample to openssl.cnf so req -x509 now adds appropriate
9099 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9100 error code, add initial support to X509_print() and x509 application.
9103 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9104 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9105 stuff is currently isolated and isn't even compiled yet.
9108 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9109 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9110 Removed the versions check from X509 routines when loading extensions:
9111 this allows certain broken certificates that don't set the version
9112 properly to be processed.
9115 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9116 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9117 can still be regenerated with "make depend".
9120 *) Spelling mistake in C version of CAST-128.
9121 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9123 *) Changes to the error generation code. The perl script err-code.pl
9124 now reads in the old error codes and retains the old numbers, only
9125 adding new ones if necessary. It also only changes the .err files if new
9126 codes are added. The makefiles have been modified to only insert errors
9127 when needed (to avoid needlessly modifying header files). This is done
9128 by only inserting errors if the .err file is newer than the auto generated
9129 C file. To rebuild all the error codes from scratch (the old behaviour)
9130 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9131 or delete all the .err files.
9134 *) CAST-128 was incorrectly implemented for short keys. The C version has
9135 been fixed, but is untested. The assembler versions are also fixed, but
9136 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9137 to regenerate it if needed.
9138 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9139 Hagino <itojun@kame.net>]
9141 *) File was opened incorrectly in randfile.c.
9142 [Ulf Möller <ulf@fitug.de>]
9144 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9145 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9146 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9147 al: it's just almost always a UTCTime. Note this patch adds new error
9148 codes so do a "make errors" if there are problems.
9151 *) Correct Linux 1 recognition in config.
9152 [Ulf Möller <ulf@fitug.de>]
9154 *) Remove pointless MD5 hash when using DSA keys in ca.
9155 [Anonymous <nobody@replay.com>]
9157 *) Generate an error if given an empty string as a cert directory. Also
9158 generate an error if handed NULL (previously returned 0 to indicate an
9159 error, but didn't set one).
9160 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9162 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9165 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9166 parameters. This was causing a warning which killed off the Win32 compile.
9169 *) Remove C++ style comments from crypto/bn/bn_local.h.
9170 [Neil Costigan <neil.costigan@celocom.com>]
9172 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9173 based on a text string, looking up short and long names and finally
9174 "dot" format. The "dot" format stuff didn't work. Added new function
9175 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9176 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9177 OID is not part of the table.
9180 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9181 X509_LOOKUP_by_alias().
9184 *) Sort openssl functions by name.
9187 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9188 encryption from sample DSA keys (in case anyone is interested the password
9192 *) Make _all_ *_free functions accept a NULL pointer.
9193 [Frans Heymans <fheymans@isaserver.be>]
9195 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9197 [Anonymous <nobody@replay.com>]
9199 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9200 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9202 *) Don't blow it for numeric -newkey arguments to apps/req.
9203 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9205 *) Temp key "for export" tests were wrong in s3_srvr.c.
9206 [Anonymous <nobody@replay.com>]
9208 *) Add prototype for temp key callback functions
9209 SSL_CTX_set_tmp_{rsa,dh}_callback().
9212 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9213 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9216 *) X509_name_add_entry() freed the wrong thing after an error.
9217 [Arne Ansper <arne@ats.cyber.ee>]
9219 *) rsa_eay.c would attempt to free a NULL context.
9220 [Arne Ansper <arne@ats.cyber.ee>]
9222 *) BIO_s_socket() had a broken should_retry() on Windoze.
9223 [Arne Ansper <arne@ats.cyber.ee>]
9225 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9226 [Arne Ansper <arne@ats.cyber.ee>]
9228 *) Make sure the already existing X509_STORE->depth variable is initialized
9229 in X509_STORE_new(), but document the fact that this variable is still
9230 unused in the certificate verification process.
9231 [Ralf S. Engelschall]
9233 *) Fix the various library and apps files to free up pkeys obtained from
9234 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9237 *) Fix reference counting in X509_PUBKEY_get(). This makes
9238 demos/maurice/example2.c work, amongst others, probably.
9239 [Steve Henson and Ben Laurie]
9241 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9242 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9243 are no longer created. This way we have a single and consistent command
9244 line interface `openssl <command>', similar to `cvs <command>'.
9245 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9247 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9248 BIT STRING wrapper always have zero unused bits.
9251 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9254 *) Make the top-level INSTALL documentation easier to understand.
9257 *) Makefiles updated to exit if an error occurs in a sub-directory
9258 make (including if user presses ^C) [Paul Sutton]
9260 *) Make Montgomery context stuff explicit in RSA data structure.
9263 *) Fix build order of pem and err to allow for generated pem.h.
9266 *) Fix renumbering bug in X509_NAME_delete_entry().
9269 *) Enhanced the err-ins.pl script so it makes the error library number
9270 global and can add a library name. This is needed for external ASN1 and
9271 other error libraries.
9274 *) Fixed sk_insert which never worked properly.
9277 *) Fix ASN1 macros so they can handle indefinite length construted
9278 EXPLICIT tags. Some non standard certificates use these: they can now
9282 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9283 into a single doc/ssleay.txt bundle. This way the information is still
9284 preserved but no longer messes up this directory. Now it's new room for
9285 the new set of documenation files.
9286 [Ralf S. Engelschall]
9288 *) SETs were incorrectly DER encoded. This was a major pain, because they
9289 shared code with SEQUENCEs, which aren't coded the same. This means that
9290 almost everything to do with SETs or SEQUENCEs has either changed name or
9291 number of arguments.
9292 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9294 *) Fix test data to work with the above.
9297 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9298 was already fixed by Eric for 0.9.1 it seems.
9299 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9301 *) Autodetect FreeBSD3.
9304 *) Fix various bugs in Configure. This affects the following platforms:
9308 unixware-2.0-pentium
9312 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9313 before they are needed.
9316 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9320 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9322 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9323 changed SSLeay to OpenSSL in version strings.
9324 [Ralf S. Engelschall]
9326 *) Some fixups to the top-level documents.
9329 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9330 because the symlink to include/ was missing.
9331 [Ralf S. Engelschall]
9333 *) Incorporated the popular no-RSA/DSA-only patches
9334 which allow to compile a RSA-free SSLeay.
9335 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9337 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9338 when "ssleay" is still not found.
9339 [Ralf S. Engelschall]
9341 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9342 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9344 *) Updated the README file.
9345 [Ralf S. Engelschall]
9347 *) Added various .cvsignore files in the CVS repository subdirs
9348 to make a "cvs update" really silent.
9349 [Ralf S. Engelschall]
9351 *) Recompiled the error-definition header files and added
9352 missing symbols to the Win32 linker tables.
9353 [Ralf S. Engelschall]
9355 *) Cleaned up the top-level documents;
9356 o new files: CHANGES and LICENSE
9357 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9358 o merged COPYRIGHT into LICENSE
9359 o removed obsolete TODO file
9360 o renamed MICROSOFT to INSTALL.W32
9361 [Ralf S. Engelschall]
9363 *) Removed dummy files from the 0.9.1b source tree:
9364 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9365 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9366 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9367 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9368 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9369 [Ralf S. Engelschall]
9371 *) Added various platform portability fixes.
9374 *) The Genesis of the OpenSSL rpject:
9375 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9376 Young and Tim J. Hudson created while they were working for C2Net until
9378 [The OpenSSL Project]
9381 Changes between 0.9.0b and 0.9.1b [not released]
9383 *) Updated a few CA certificates under certs/
9386 *) Changed some BIGNUM api stuff.
9389 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9390 DGUX x86, Linux Alpha, etc.
9393 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9394 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9398 *) Add -strparse option to asn1pars program which parses nested
9400 [Dr Stephen Henson <shenson@bigfoot.com>]
9402 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9405 *) DSA fix for "ca" program.
9408 *) Added "-genkey" option to "dsaparam" program.
9411 *) Added RIPE MD160 (rmd160) message digest.
9414 *) Added -a (all) option to "ssleay version" command.
9417 *) Added PLATFORM define which is the id given to Configure.
9420 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9423 *) Extended the ASN.1 parser routines.
9426 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9429 *) Added a BN_CTX to the BN library.
9432 *) Fixed the weak key values in DES library
9435 *) Changed API in EVP library for cipher aliases.
9438 *) Added support for RC2/64bit cipher.
9441 *) Converted the lhash library to the crypto/mem.c functions.
9444 *) Added more recognized ASN.1 object ids.
9447 *) Added more RSA padding checks for SSL/TLS.
9450 *) Added BIO proxy/filter functionality.
9453 *) Added extra_certs to SSL_CTX which can be used
9454 send extra CA certificates to the client in the CA cert chain sending
9455 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9458 *) Now Fortezza is denied in the authentication phase because
9459 this is key exchange mechanism is not supported by SSLeay at all.
9462 *) Additional PKCS1 checks.
9465 *) Support the string "TLSv1" for all TLS v1 ciphers.
9468 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9469 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9472 *) Fixed a few memory leaks.
9475 *) Fixed various code and comment typos.
9478 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9479 bytes sent in the client random.
9480 [Edward Bishop <ebishop@spyglass.com>]