5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Add load_crls() function to apps tidying load_certs() too. Add option
8 to verify utility to allow additional CRLs to be included.
11 *) Update OCSP request code to permit adding custom headers to the request:
12 some responders need this.
15 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
16 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
17 BIO_set_cipher() and some obscure PEM functions were changed so they
18 can now return an error. The RAND changes required a change to the
19 RAND_METHOD structure.
22 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
23 a gcc attribute to warn if the result of a function is ignored. This
24 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
25 whose return value is often ignored.
28 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
30 [Julia Lawall <julia@diku.dk>]
32 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
33 needlessly dereferenced structures, used obsolete functions and
34 didn't handle all updated verify codes correctly.
37 *) Delete MD2 from algorithm tables. This follows the recommendation in
38 several standards that it is not used in new applications due to
39 several cryptographic weaknesses. The algorithm is also disabled in
40 the default configuration.
43 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
44 indicate the initial BIO being pushed or popped. This makes it possible
45 to determine whether the BIO is the one explicitly called or as a result
46 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
47 it handles reference counts correctly and doesn't zero out the I/O bio
48 when it is not being explicitly popped. WARNING: applications which
49 included workarounds for the old buggy behaviour will need to be modified
50 or they could free up already freed BIOs.
53 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
54 OPENSSL_asc2uni the original names were too generic and cause name
56 [Guenter <lists@gknw.net>]
58 *) Add ECDHE and PSK support to DTLS.
59 [Michael Tuexen <tuexen@fh-muenster.de>]
61 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
65 *) Add "missing" function EVP_MD_flags() (without this the only way to
66 retrieve a digest flags is by accessing the structure directly. Update
67 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
68 or cipher is registered as in the "from" argument. Print out all
69 registered digests in the dgst usage message instead of manually
70 attempting to work them out.
73 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
74 this allows the use of compression and extensions. Change default cipher
75 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
76 by default unless an application cipher string requests it.
79 *) Alter match criteria in PKCS12_parse(). It used to try to use local
80 key ids to find matching certificates and keys but some PKCS#12 files
81 don't follow the (somewhat unwritten) rules and this strategy fails.
82 Now just gather all certificates together and the first private key
83 then look for the first certificate that matches the key.
86 *) Support use of registered digest and cipher names for dgst and cipher
87 commands instead of having to add each one as a special case. So now
94 openssl dgst -sha256 foo
96 and this works for ENGINE based algorithms too.
100 *) Update Gost ENGINE to support parameter files.
101 [Victor B. Wagner <vitus@cryptocom.ru>]
103 *) Support GeneralizedTime in ca utility.
104 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
106 *) Enhance the hash format used for certificate directory links. The new
107 form uses the canonical encoding (meaning equivalent names will work
108 even if they aren't identical) and uses SHA1 instead of MD5. This form
109 is incompatible with the older format and as a result c_rehash should
110 be used to rebuild symbolic links.
113 *) Make PKCS#8 the default write format for private keys, replacing the
114 traditional format. This form is standardised, more secure and doesn't
115 include an implicit MD5 dependency.
118 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
119 committed to OpenSSL should pass this lot as a minimum.
122 *) Add session ticket override functionality for use by EAP-FAST.
123 [Jouni Malinen <j@w1.fi>]
125 *) Modify HMAC functions to return a value. Since these can be implemented
126 in an ENGINE errors can occur.
129 *) Type-checked OBJ_bsearch_ex.
132 *) Type-checked OBJ_bsearch. Also some constification necessitated
133 by type-checking. Still to come: TXT_DB, bsearch(?),
134 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
138 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
139 seconds to a tm structure directly, instead of going through OS
140 specific date routines. This avoids any issues with OS routines such
141 as the year 2038 bug. New *_adj() functions for ASN1 time structures
142 and X509_time_adj_ex() to cover the extended range. The existing
143 X509_time_adj() is still usable and will no longer have any date issues.
146 *) Delta CRL support. New use deltas option which will attempt to locate
147 and search any appropriate delta CRLs available.
149 This work was sponsored by Google.
152 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
153 code and add additional score elements. Validate alternate CRL paths
154 as part of the CRL checking and indicate a new error "CRL path validation
155 error" in this case. Applications wanting additional details can use
156 the verify callback and check the new "parent" field. If this is not
157 NULL CRL path validation is taking place. Existing applications wont
158 see this because it requires extended CRL support which is off by
161 This work was sponsored by Google.
164 *) Support for freshest CRL extension.
166 This work was sponsored by Google.
169 *) Initial indirect CRL support. Currently only supported in the CRLs
170 passed directly and not via lookup. Process certificate issuer
171 CRL entry extension and lookup CRL entries by bother issuer name
172 and serial number. Check and process CRL issuer entry in IDP extension.
174 This work was sponsored by Google.
177 *) Add support for distinct certificate and CRL paths. The CRL issuer
178 certificate is validated separately in this case. Only enabled if
179 an extended CRL support flag is set: this flag will enable additional
180 CRL functionality in future.
182 This work was sponsored by Google.
185 *) Add support for policy mappings extension.
187 This work was sponsored by Google.
190 *) Fixes to pathlength constraint, self issued certificate handling,
191 policy processing to align with RFC3280 and PKITS tests.
193 This work was sponsored by Google.
196 *) Support for name constraints certificate extension. DN, email, DNS
197 and URI types are currently supported.
199 This work was sponsored by Google.
202 *) To cater for systems that provide a pointer-based thread ID rather
203 than numeric, deprecate the current numeric thread ID mechanism and
204 replace it with a structure and associated callback type. This
205 mechanism allows a numeric "hash" to be extracted from a thread ID in
206 either case, and on platforms where pointers are larger than 'long',
207 mixing is done to help ensure the numeric 'hash' is usable even if it
208 can't be guaranteed unique. The default mechanism is to use "&errno"
209 as a pointer-based thread ID to distinguish between threads.
211 Applications that want to provide their own thread IDs should now use
212 CRYPTO_THREADID_set_callback() to register a callback that will call
213 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
215 Note that ERR_remove_state() is now deprecated, because it is tied
216 to the assumption that thread IDs are numeric. ERR_remove_state(0)
217 to free the current thread's error state should be replaced by
218 ERR_remove_thread_state(NULL).
220 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
221 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
222 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
223 application was previously providing a numeric thread callback that
224 was inappropriate for distinguishing threads, then uniqueness might
225 have been obtained with &errno that happened immediately in the
226 intermediate development versions of OpenSSL; this is no longer the
227 case, the numeric thread callback will now override the automatic use
229 [Geoff Thorpe, with help from Bodo Moeller]
231 *) Initial support for different CRL issuing certificates. This covers a
232 simple case where the self issued certificates in the chain exist and
233 the real CRL issuer is higher in the existing chain.
235 This work was sponsored by Google.
238 *) Removed effectively defunct crypto/store from the build.
241 *) Revamp of STACK to provide stronger type-checking. Still to come:
242 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
243 ASN1_STRING, CONF_VALUE.
246 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
247 RAM on SSL connections. This option can save about 34k per idle SSL.
250 *) Revamp of LHASH to provide stronger type-checking. Still to come:
251 STACK, TXT_DB, bsearch, qsort.
254 *) Initial support for Cryptographic Message Syntax (aka CMS) based
255 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
256 support for data, signedData, compressedData, digestedData and
257 encryptedData, envelopedData types included. Scripts to check against
258 RFC4134 examples draft and interop and consistency checks of many
259 content types and variants.
262 *) Add options to enc utility to support use of zlib compression BIO.
265 *) Extend mk1mf to support importing of options and assembly language
266 files from Configure script, currently only included in VC-WIN32.
267 The assembly language rules can now optionally generate the source
268 files from the associated perl scripts.
271 *) Implement remaining functionality needed to support GOST ciphersuites.
272 Interop testing has been performed using CryptoPro implementations.
273 [Victor B. Wagner <vitus@cryptocom.ru>]
275 *) s390x assembler pack.
278 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
282 *) Implement Opaque PRF Input TLS extension as specified in
283 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
284 official specification yet and no extension type assignment by
285 IANA exists, this extension (for now) will have to be explicitly
286 enabled when building OpenSSL by providing the extension number
287 to use. For example, specify an option
289 -DTLSEXT_TYPE_opaque_prf_input=0x9527
291 to the "config" or "Configure" script to enable the extension,
292 assuming extension number 0x9527 (which is a completely arbitrary
293 and unofficial assignment based on the MD5 hash of the Internet
294 Draft). Note that by doing so, you potentially lose
295 interoperability with other TLS implementations since these might
296 be using the same extension number for other purposes.
298 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
299 opaque PRF input value to use in the handshake. This will create
300 an interal copy of the length-'len' string at 'src', and will
301 return non-zero for success.
303 To get more control and flexibility, provide a callback function
306 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
307 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
311 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
314 Callback function 'cb' will be called in handshakes, and is
315 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
316 Argument 'arg' is for application purposes (the value as given to
317 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
318 be provided to the callback function). The callback function
319 has to return non-zero to report success: usually 1 to use opaque
320 PRF input just if possible, or 2 to enforce use of the opaque PRF
321 input. In the latter case, the library will abort the handshake
322 if opaque PRF input is not successfully negotiated.
324 Arguments 'peerinput' and 'len' given to the callback function
325 will always be NULL and 0 in the case of a client. A server will
326 see the client's opaque PRF input through these variables if
327 available (NULL and 0 otherwise). Note that if the server
328 provides an opaque PRF input, the length must be the same as the
329 length of the client's opaque PRF input.
331 Note that the callback function will only be called when creating
332 a new session (session resumption can resume whatever was
333 previously negotiated), and will not be called in SSL 2.0
334 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
335 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
336 for applications that need to enforce opaque PRF input.
340 *) Update ssl code to support digests other than SHA1+MD5 for handshake
343 [Victor B. Wagner <vitus@cryptocom.ru>]
345 *) Add RFC4507 support to OpenSSL. This includes the corrections in
346 RFC4507bis. The encrypted ticket format is an encrypted encoded
347 SSL_SESSION structure, that way new session features are automatically
350 If a client application caches session in an SSL_SESSION structure
351 support is transparent because tickets are now stored in the encoded
354 The SSL_CTX structure automatically generates keys for ticket
355 protection in servers so again support should be possible
356 with no application modification.
358 If a client or server wishes to disable RFC4507 support then the option
359 SSL_OP_NO_TICKET can be set.
361 Add a TLS extension debugging callback to allow the contents of any client
362 or server extensions to be examined.
364 This work was sponsored by Google.
367 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
368 OpenSSL should now compile cleanly on gcc 4.2
369 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
371 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
372 support including streaming MAC support: this is required for GOST
374 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
376 *) Add option -stream to use PKCS#7 streaming in smime utility. New
377 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
378 to output in BER and PEM format.
381 *) Experimental support for use of HMAC via EVP_PKEY interface. This
382 allows HMAC to be handled via the EVP_DigestSign*() interface. The
383 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
384 ENGINE support for HMAC keys which are unextractable. New -mac and
385 -macopt options to dgst utility.
388 *) New option -sigopt to dgst utility. Update dgst to use
389 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
390 alternative signing paramaters such as X9.31 or PSS in the dgst
394 *) Change ssl_cipher_apply_rule(), the internal function that does
395 the work each time a ciphersuite string requests enabling
396 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
397 removing ("!foo+bar") a class of ciphersuites: Now it maintains
398 the order of disabled ciphersuites such that those ciphersuites
399 that most recently went from enabled to disabled not only stay
400 in order with respect to each other, but also have higher priority
401 than other disabled ciphersuites the next time ciphersuites are
404 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
405 the same ciphersuites as with "HIGH" alone, but in a specific
406 order where the PSK ciphersuites come first (since they are the
407 most recently disabled ciphersuites when "HIGH" is parsed).
409 Also, change ssl_create_cipher_list() (using this new
410 funcionality) such that between otherwise identical
411 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
415 *) Change ssl_create_cipher_list() so that it automatically
416 arranges the ciphersuites in reasonable order before starting
417 to process the rule string. Thus, the definition for "DEFAULT"
418 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
419 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
420 This makes it much easier to arrive at a reasonable default order
421 in applications for which anonymous ciphers are OK (meaning
422 that you can't actually use DEFAULT).
423 [Bodo Moeller; suggested by Victor Duchovni]
425 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
426 processing) into multiple integers instead of setting
427 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
428 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
429 (These masks as well as the individual bit definitions are hidden
430 away into the non-exported interface ssl/ssl_locl.h, so this
431 change to the definition of the SSL_CIPHER structure shouldn't
432 affect applications.) This give us more bits for each of these
433 categories, so there is no longer a need to coagulate AES128 and
434 AES256 into a single algorithm bit, and to coagulate Camellia128
435 and Camellia256 into a single algorithm bit, which has led to all
438 Thus, among other things, the kludge introduced in 0.9.7m and
439 0.9.8e for masking out AES256 independently of AES128 or masking
440 out Camellia256 independently of AES256 is not needed here in 0.9.9.
442 With the change, we also introduce new ciphersuite aliases that
443 so far were missing: "AES128", "AES256", "CAMELLIA128", and
447 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
448 Use the leftmost N bytes of the signature input if the input is
449 larger than the prime q (with N being the size in bytes of q).
452 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
453 it yet and it is largely untested.
456 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
459 *) Initial incomplete changes to avoid need for function casts in OpenSSL
460 some compilers (gcc 4.2 and later) reject their use. Safestack is
461 reimplemented. Update ASN1 to avoid use of legacy functions.
464 *) Win32/64 targets are linked with Winsock2.
467 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
468 to external functions. This can be used to increase CRL handling
469 efficiency especially when CRLs are very large by (for example) storing
470 the CRL revoked certificates in a database.
473 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
474 new CRLs added to a directory can be used. New command line option
475 -verify_return_error to s_client and s_server. This causes real errors
476 to be returned by the verify callback instead of carrying on no matter
477 what. This reflects the way a "real world" verify callback would behave.
480 *) GOST engine, supporting several GOST algorithms and public key formats.
481 Kindly donated by Cryptocom.
484 *) Partial support for Issuing Distribution Point CRL extension. CRLs
485 partitioned by DP are handled but no indirect CRL or reason partitioning
486 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
487 selected via a scoring technique which handles IDP and AKID in CRLs.
490 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
491 will ultimately be used for all verify operations: this will remove the
492 X509_STORE dependency on certificate verification and allow alternative
493 lookup methods. X509_STORE based implementations of these two callbacks.
496 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
497 Modify get_crl() to find a valid (unexpired) CRL if possible.
500 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
501 this would be called X509_CRL_cmp() but that name is already used by
502 a function that just compares CRL issuer names. Cache several CRL
503 extensions in X509_CRL structure and cache CRLDP in X509.
506 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
507 this maps equivalent X509_NAME structures into a consistent structure.
508 Name comparison can then be performed rapidly using memcmp().
511 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
515 *) Allow digests to supply their own micalg string for S/MIME type using
516 the ctrl EVP_MD_CTRL_MICALG.
519 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
520 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
521 ctrl. It can then customise the structure before and/or after signing
525 *) New function OBJ_add_sigid() to allow application defined signature OIDs
526 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
527 to free up any added signature OIDs.
530 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
531 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
532 digest and cipher tables. New options added to openssl utility:
533 list-message-digest-algorithms and list-cipher-algorithms.
536 *) Change the array representation of binary polynomials: the list
537 of degrees of non-zero coefficients is now terminated with -1.
538 Previously it was terminated with 0, which was also part of the
539 value; thus, the array representation was not applicable to
540 polynomials where t^0 has coefficient zero. This change makes
541 the array representation useful in a more general context.
544 *) Various modifications and fixes to SSL/TLS cipher string
545 handling. For ECC, the code now distinguishes between fixed ECDH
546 with RSA certificates on the one hand and with ECDSA certificates
547 on the other hand, since these are separate ciphersuites. The
548 unused code for Fortezza ciphersuites has been removed.
550 For consistency with EDH, ephemeral ECDH is now called "EECDH"
551 (not "ECDHE"). For consistency with the code for DH
552 certificates, use of ECDH certificates is now considered ECDH
553 authentication, not RSA or ECDSA authentication (the latter is
554 merely the CA's signing algorithm and not actively used in the
557 The temporary ciphersuite alias "ECCdraft" is no longer
558 available, and ECC ciphersuites are no longer excluded from "ALL"
559 and "DEFAULT". The following aliases now exist for RFC 4492
560 ciphersuites, most of these by analogy with the DH case:
562 kECDHr - ECDH cert, signed with RSA
563 kECDHe - ECDH cert, signed with ECDSA
564 kECDH - ECDH cert (signed with either RSA or ECDSA)
565 kEECDH - ephemeral ECDH
566 ECDH - ECDH cert or ephemeral ECDH
572 AECDH - anonymous ECDH
573 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
577 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
578 Use correct micalg parameters depending on digest(s) in signed message.
581 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
582 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
585 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
586 an engine to register a method. Add ENGINE lookups for methods and
587 functional reference processing.
590 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
591 EVP_{Sign,Verify}* which allow an application to customise the signature
595 *) New -resign option to smime utility. This adds one or more signers
596 to an existing PKCS#7 signedData structure. Also -md option to use an
597 alternative message digest algorithm for signing.
600 *) Tidy up PKCS#7 routines and add new functions to make it easier to
601 create PKCS7 structures containing multiple signers. Update smime
602 application to support multiple signers.
605 *) New -macalg option to pkcs12 utility to allow setting of an alternative
609 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
610 Reorganize PBE internals to lookup from a static table using NIDs,
611 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
612 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
613 PRF which will be automatically used with PBES2.
616 *) Replace the algorithm specific calls to generate keys in "req" with the
620 *) Update PKCS#7 enveloped data routines to use new API. This is now
621 supported by any public key method supporting the encrypt operation. A
622 ctrl is added to allow the public key algorithm to examine or modify
623 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
627 *) Add a ctrl to asn1 method to allow a public key algorithm to express
628 a default digest type to use. In most cases this will be SHA1 but some
629 algorithms (such as GOST) need to specify an alternative digest. The
630 return value indicates how strong the prefernce is 1 means optional and
631 2 is mandatory (that is it is the only supported type). Modify
632 ASN1_item_sign() to accept a NULL digest argument to indicate it should
633 use the default md. Update openssl utilities to use the default digest
634 type for signing if it is not explicitly indicated.
637 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
638 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
639 signing method from the key type. This effectively removes the link
640 between digests and public key types.
643 *) Add an OID cross reference table and utility functions. Its purpose is to
644 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
645 rsaEncryption. This will allow some of the algorithm specific hackery
646 needed to use the correct OID to be removed.
649 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
650 structures for PKCS7_sign(). They are now set up by the relevant public
654 *) Add provisional EC pkey method with support for ECDSA and ECDH.
657 *) Add support for key derivation (agreement) in the API, DH method and
661 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
662 public and private key formats. As a side effect these add additional
663 command line functionality not previously available: DSA signatures can be
664 generated and verified using pkeyutl and DH key support and generation in
669 [Oliver Tappe <zooey@hirschkaefer.de>]
671 *) New make target "install_html_docs" installs HTML renditions of the
673 [Oliver Tappe <zooey@hirschkaefer.de>]
675 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
676 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
677 support key and parameter generation and add initial key generation
678 functionality for RSA.
681 *) Add functions for main EVP_PKEY_method operations. The undocumented
682 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
683 EVP_PKEY_{encrypt,decrypt}_old.
686 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
687 key API, doesn't do much yet.
690 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
691 public key algorithms. New option to openssl utility:
692 "list-public-key-algorithms" to print out info.
695 *) Implement the Supported Elliptic Curves Extension for
696 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
699 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
700 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
703 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
704 utilities such as rsa, dsa, dsaparam etc except they process any key
708 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
709 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
710 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
714 *) Initial support for pluggable public key ASN1.
715 De-spaghettify the public key ASN1 handling. Move public and private
716 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
717 algorithm specific handling to a single module within the relevant
718 algorithm directory. Add functions to allow (near) opaque processing
719 of public and private key structures.
722 *) Implement the Supported Point Formats Extension for
723 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
726 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
727 for the psk identity [hint] and the psk callback functions to the
728 SSL_SESSION, SSL and SSL_CTX structure.
731 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
735 SSL_CTX_use_psk_identity_hint
736 SSL_get_psk_identity_hint
738 SSL_use_psk_identity_hint
740 [Mika Kousa and Pasi Eronen of Nokia Corporation]
742 *) Add RFC 3161 compliant time stamp request creation, response generation
743 and response verification functionality.
744 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
746 *) Add initial support for TLS extensions, specifically for the server_name
747 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
748 have new members for a host name. The SSL data structure has an
749 additional member SSL_CTX *initial_ctx so that new sessions can be
750 stored in that context to allow for session resumption, even after the
751 SSL has been switched to a new SSL_CTX in reaction to a client's
752 server_name extension.
754 New functions (subject to change):
757 SSL_get_servername_type()
760 New CTRL codes and macros (subject to change):
762 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
763 - SSL_CTX_set_tlsext_servername_callback()
764 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
765 - SSL_CTX_set_tlsext_servername_arg()
766 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
768 openssl s_client has a new '-servername ...' option.
770 openssl s_server has new options '-servername_host ...', '-cert2 ...',
771 '-key2 ...', '-servername_fatal' (subject to change). This allows
772 testing the HostName extension for a specific single host name ('-cert'
773 and '-key' remain fallbacks for handshakes without HostName
774 negotiation). If the unrecogninzed_name alert has to be sent, this by
775 default is a warning; it becomes fatal with the '-servername_fatal'
778 [Peter Sylvester, Remy Allais, Christophe Renou]
780 *) Whirlpool hash implementation is added.
783 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
784 bn(64,32). Because of instruction set limitations it doesn't have
785 any negative impact on performance. This was done mostly in order
786 to make it possible to share assembler modules, such as bn_mul_mont
787 implementations, between 32- and 64-bit builds without hassle.
790 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
791 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
795 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
796 dedicated Montgomery multiplication procedure, is introduced.
797 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
798 "64-bit" performance on certain 32-bit targets.
801 *) New option SSL_OP_NO_COMP to disable use of compression selectively
802 in SSL structures. New SSL ctrl to set maximum send fragment size.
803 Save memory by seeting the I/O buffer sizes dynamically instead of
804 using the maximum available value.
807 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
808 in addition to the text details.
811 *) Very, very preliminary EXPERIMENTAL support for printing of general
812 ASN1 structures. This currently produces rather ugly output and doesn't
813 handle several customised structures at all.
816 *) Integrated support for PVK file format and some related formats such
817 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
818 these in the 'rsa' and 'dsa' utilities.
821 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
824 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
825 place for the (very old) "NETSCAPE" format certificates which are now
826 handled using new ASN1 code equivalents.
829 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
830 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
831 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
834 *) Modify CRL distribution points extension code to print out previously
835 unsupported fields. Enhance extension setting code to allow setting of
839 *) Add print and set support for Issuing Distribution Point CRL extension.
842 *) Change 'Configure' script to enable Camellia by default.
845 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
847 *) Fixes to stateless session resumption handling. Use initial_ctx when
848 issuing and attempting to decrypt tickets in case it has changed during
849 servername handling. Use a non-zero length session ID when attempting
850 stateless session resumption: this makes it possible to determine if
851 a resumption has occurred immediately after receiving server hello
852 (several places in OpenSSL subtly assume this) instead of later in
856 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
857 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
858 fixes for a few places where the return code is not checked
860 [Julia Lawall <julia@diku.dk>]
862 *) Add --strict-warnings option to Configure script to include devteam
863 warnings in other configurations.
866 *) Add support for --libdir option and LIBDIR variable in makefiles. This
867 makes it possible to install openssl libraries in locations which
868 have names other than "lib", for example "/usr/lib64" which some
870 [Steve Henson, based on patch from Jeremy Utley]
872 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
873 X690 8.9.12 and can produce some misleading textual output of OIDs.
874 [Steve Henson, reported by Dan Kaminsky]
876 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
880 *) Fix the server certificate chain building code to use X509_verify_cert(),
881 it used to have an ad-hoc builder which was unable to cope with anything
882 other than a simple chain.
883 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
885 *) Don't check self signed certificate signatures in X509_verify_cert()
886 by default (a flag can override this): it just wastes time without
887 adding any security. As a useful side effect self signed root CAs
888 with non-FIPS digests are now usable in FIPS mode.
891 *) In dtls1_process_out_of_seq_message() the check if the current message
892 is already buffered was missing. For every new message was memory
893 allocated, allowing an attacker to perform an denial of service attack
894 with sending out of seq handshake messages until there is no memory
895 left. Additionally every future messege was buffered, even if the
896 sequence number made no sense and would be part of another handshake.
897 So only messages with sequence numbers less than 10 in advance will be
899 [Robin Seggelmann, discovered by Daniel Mentz]
901 *) Records are buffered if they arrive with a future epoch to be
902 processed after finishing the corresponding handshake. There is
903 currently no limitation to this buffer allowing an attacker to perform
904 a DOS attack with sending records with future epochs until there is no
905 memory left. This patch adds the pqueue_size() function to detemine
906 the size of a buffer and limits the record buffer to 100 entries.
907 [Robin Seggelmann, discovered by Daniel Mentz]
909 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
910 parent structure is freed.
913 *) Handle non-blocking I/O properly in SSL_shutdown() call.
914 [Darryl Miles <darryl-mailinglists@netbauds.net>]
917 [Ilya O. <vrghost@gmail.com>]
919 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
921 *) Don't set val to NULL when freeing up structures, it is freed up by
922 underlying code. If sizeof(void *) > sizeof(long) this can result in
923 zeroing past the valid field. (CVE-2009-0789)
924 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
926 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
927 checked correctly. This would allow some invalid signed attributes to
928 appear to verify correctly. (CVE-2009-0591)
929 [Ivan Nestlerode <inestlerode@us.ibm.com>]
931 *) Reject UniversalString and BMPString types with invalid lengths. This
932 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
933 a legal length. (CVE-2009-0590)
936 *) Set S/MIME signing as the default purpose rather than setting it
937 unconditionally. This allows applications to override it at the store
941 *) Permit restricted recursion of ASN1 strings. This is needed in practice
942 to handle some structures.
945 *) Improve efficiency of mem_gets: don't search whole buffer each time
947 [Jeremy Shapiro <jnshapir@us.ibm.com>]
949 *) New -hex option for openssl rand.
952 *) Print out UTF8String and NumericString when parsing ASN1.
955 *) Support NumericString type for name components.
958 *) Allow CC in the environment to override the automatically chosen
959 compiler. Note that nothing is done to ensure flags work with the
963 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
965 *) Properly check EVP_VerifyFinal() and similar return values
967 [Ben Laurie, Bodo Moeller, Google Security Team]
969 *) Enable TLS extensions by default.
972 *) Allow the CHIL engine to be loaded, whether the application is
973 multithreaded or not. (This does not release the developer from the
974 obligation to set up the dynamic locking callbacks.)
975 [Sander Temme <sander@temme.net>]
977 *) Use correct exit code if there is an error in dgst command.
978 [Steve Henson; problem pointed out by Roland Dirlewanger]
980 *) Tweak Configure so that you need to say "experimental-jpake" to enable
981 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
984 *) Add experimental JPAKE support, including demo authentication in
985 s_client and s_server.
988 *) Set the comparison function in v3_addr_canonize().
989 [Rob Austein <sra@hactrn.net>]
991 *) Add support for XMPP STARTTLS in s_client.
992 [Philip Paeps <philip@freebsd.org>]
994 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
995 to ensure that even with this option, only ciphersuites in the
996 server's preference list will be accepted. (Note that the option
997 applies only when resuming a session, so the earlier behavior was
998 just about the algorithm choice for symmetric cryptography.)
1001 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1003 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1004 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1007 *) The fix in 0.9.8c that supposedly got rid of unsafe
1008 double-checked locking was incomplete for RSA blinding,
1009 addressing just one layer of what turns out to have been
1010 doubly unsafe triple-checked locking.
1012 So now fix this for real by retiring the MONT_HELPER macro
1013 in crypto/rsa/rsa_eay.c.
1015 [Bodo Moeller; problem pointed out by Marius Schilder]
1017 *) Various precautionary measures:
1019 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1021 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1022 (NB: This would require knowledge of the secret session ticket key
1023 to exploit, in which case you'd be SOL either way.)
1025 - Change bn_nist.c so that it will properly handle input BIGNUMs
1026 outside the expected range.
1028 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1031 [Neel Mehta, Bodo Moeller]
1033 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1034 the load fails. Useful for distros.
1035 [Ben Laurie and the FreeBSD team]
1037 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1040 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1043 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1045 This work was sponsored by Logica.
1048 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1049 keystores. Support for SSL/TLS client authentication too.
1050 Not compiled unless enable-capieng specified to Configure.
1052 This work was sponsored by Logica.
1055 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1056 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1057 attribute creation routines such as certifcate requests and PKCS#12
1061 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1063 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1064 handshake which could lead to a cilent crash as found using the
1065 Codenomicon TLS test suite (CVE-2008-1672)
1066 [Steve Henson, Mark Cox]
1068 *) Fix double free in TLS server name extensions which could lead to
1069 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1072 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1074 Clear the error queue to ensure that error entries left from
1075 older function calls do not interfere with the correct operation.
1076 [Lutz Jaenicke, Erik de Castro Lopo]
1078 *) Remove root CA certificates of commercial CAs:
1080 The OpenSSL project does not recommend any specific CA and does not
1081 have any policy with respect to including or excluding any CA.
1082 Therefore it does not make any sense to ship an arbitrary selection
1083 of root CA certificates with the OpenSSL software.
1086 *) RSA OAEP patches to fix two separate invalid memory reads.
1087 The first one involves inputs when 'lzero' is greater than
1088 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1089 before the beginning of from). The second one involves inputs where
1090 the 'db' section contains nothing but zeroes (there is a one-byte
1091 invalid read after the end of 'db').
1092 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1094 *) Partial backport from 0.9.9-dev:
1096 Introduce bn_mul_mont (dedicated Montgomery multiplication
1097 procedure) as a candidate for BIGNUM assembler implementation.
1098 While 0.9.9-dev uses assembler for various architectures, only
1099 x86_64 is available by default here in the 0.9.8 branch, and
1100 32-bit x86 is available through a compile-time setting.
1102 To try the 32-bit x86 assembler implementation, use Configure
1103 option "enable-montasm" (which exists only for this backport).
1105 As "enable-montasm" for 32-bit x86 disclaims code stability
1106 anyway, in this constellation we activate additional code
1107 backported from 0.9.9-dev for further performance improvements,
1108 namely BN_from_montgomery_word. (To enable this otherwise,
1109 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1111 [Andy Polyakov (backport partially by Bodo Moeller)]
1113 *) Add TLS session ticket callback. This allows an application to set
1114 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1115 values. This is useful for key rollover for example where several key
1116 sets may exist with different names.
1119 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1120 This was broken until now in 0.9.8 releases, such that the only way
1121 a registered ENGINE could be used (assuming it initialises
1122 successfully on the host) was to explicitly set it as the default
1123 for the relevant algorithms. This is in contradiction with 0.9.7
1124 behaviour and the documentation. With this fix, when an ENGINE is
1125 registered into a given algorithm's table of implementations, the
1126 'uptodate' flag is reset so that auto-discovery will be used next
1127 time a new context for that algorithm attempts to select an
1129 [Ian Lister (tweaked by Geoff Thorpe)]
1131 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1132 implemention in the following ways:
1134 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1137 Lack of BER streaming support means one pass streaming processing is
1138 only supported if data is detached: setting the streaming flag is
1139 ignored for embedded content.
1141 CMS support is disabled by default and must be explicitly enabled
1142 with the enable-cms configuration option.
1145 *) Update the GMP engine glue to do direct copies between BIGNUM and
1146 mpz_t when openssl and GMP use the same limb size. Otherwise the
1147 existing "conversion via a text string export" trick is still used.
1148 [Paul Sheer <paulsheer@gmail.com>]
1150 *) Zlib compression BIO. This is a filter BIO which compressed and
1151 uncompresses any data passed through it.
1154 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1155 RFC3394 compatible AES key wrapping.
1158 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1159 sets string data without copying. X509_ALGOR_set0() and
1160 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1161 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1162 from an X509_ATTRIBUTE structure optionally checking it occurs only
1163 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1167 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1168 to get the expected BN_FLG_CONSTTIME behavior.
1169 [Bodo Moeller (Google)]
1173 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1174 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1175 - added some more tests to do_tests.pl
1176 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1177 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1178 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1179 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1180 - various changes to netware.pl to enable gcc-cross builds on Win32
1182 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1183 - various changes to fix missing prototype warnings
1184 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1185 - added AES, WHIRLPOOL and CPUID assembler code to build files
1186 - added missing AES assembler make rules to mk1mf.pl
1187 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1188 [Guenter Knauf <eflash@gmx.net>]
1190 *) Implement certificate status request TLS extension defined in RFC3546.
1191 A client can set the appropriate parameters and receive the encoded
1192 OCSP response via a callback. A server can query the supplied parameters
1193 and set the encoded OCSP response in the callback. Add simplified examples
1194 to s_client and s_server.
1197 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1199 *) Fix various bugs:
1200 + Binary incompatibility of ssl_ctx_st structure
1201 + DTLS interoperation with non-compliant servers
1202 + Don't call get_session_cb() without proposed session
1203 + Fix ia64 assembler code
1204 [Andy Polyakov, Steve Henson]
1206 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1208 *) DTLS Handshake overhaul. There were longstanding issues with
1209 OpenSSL DTLS implementation, which were making it impossible for
1210 RFC 4347 compliant client to communicate with OpenSSL server.
1211 Unfortunately just fixing these incompatibilities would "cut off"
1212 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1213 server keeps tolerating non RFC compliant syntax. The opposite is
1214 not true, 0.9.8f client can not communicate with earlier server.
1215 This update even addresses CVE-2007-4995.
1218 *) Changes to avoid need for function casts in OpenSSL: some compilers
1219 (gcc 4.2 and later) reject their use.
1220 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1223 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1224 RFC4507bis. The encrypted ticket format is an encrypted encoded
1225 SSL_SESSION structure, that way new session features are automatically
1228 If a client application caches session in an SSL_SESSION structure
1229 support is transparent because tickets are now stored in the encoded
1232 The SSL_CTX structure automatically generates keys for ticket
1233 protection in servers so again support should be possible
1234 with no application modification.
1236 If a client or server wishes to disable RFC4507 support then the option
1237 SSL_OP_NO_TICKET can be set.
1239 Add a TLS extension debugging callback to allow the contents of any client
1240 or server extensions to be examined.
1242 This work was sponsored by Google.
1245 *) Add initial support for TLS extensions, specifically for the server_name
1246 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1247 have new members for a host name. The SSL data structure has an
1248 additional member SSL_CTX *initial_ctx so that new sessions can be
1249 stored in that context to allow for session resumption, even after the
1250 SSL has been switched to a new SSL_CTX in reaction to a client's
1251 server_name extension.
1253 New functions (subject to change):
1255 SSL_get_servername()
1256 SSL_get_servername_type()
1259 New CTRL codes and macros (subject to change):
1261 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1262 - SSL_CTX_set_tlsext_servername_callback()
1263 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1264 - SSL_CTX_set_tlsext_servername_arg()
1265 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1267 openssl s_client has a new '-servername ...' option.
1269 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1270 '-key2 ...', '-servername_fatal' (subject to change). This allows
1271 testing the HostName extension for a specific single host name ('-cert'
1272 and '-key' remain fallbacks for handshakes without HostName
1273 negotiation). If the unrecogninzed_name alert has to be sent, this by
1274 default is a warning; it becomes fatal with the '-servername_fatal'
1277 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1279 *) Add AES and SSE2 assembly language support to VC++ build.
1282 *) Mitigate attack on final subtraction in Montgomery reduction.
1285 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1286 (which previously caused an internal error).
1289 *) Squeeze another 10% out of IGE mode when in != out.
1292 *) AES IGE mode speedup.
1293 [Dean Gaudet (Google)]
1295 *) Add the Korean symmetric 128-bit cipher SEED (see
1296 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1297 add SEED ciphersuites from RFC 4162:
1299 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1300 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1301 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1302 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1304 To minimize changes between patchlevels in the OpenSSL 0.9.8
1305 series, SEED remains excluded from compilation unless OpenSSL
1306 is configured with 'enable-seed'.
1307 [KISA, Bodo Moeller]
1309 *) Mitigate branch prediction attacks, which can be practical if a
1310 single processor is shared, allowing a spy process to extract
1311 information. For detailed background information, see
1312 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1313 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1314 and Necessary Software Countermeasures"). The core of the change
1315 are new versions BN_div_no_branch() and
1316 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1317 respectively, which are slower, but avoid the security-relevant
1318 conditional branches. These are automatically called by BN_div()
1319 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1320 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1321 remove a conditional branch.
1323 BN_FLG_CONSTTIME is the new name for the previous
1324 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1325 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1326 in the exponent causes BN_mod_exp_mont() to use the alternative
1327 implementation in BN_mod_exp_mont_consttime().) The old name
1328 remains as a deprecated alias.
1330 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1331 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1332 constant-time implementations for more than just exponentiation.
1333 Here too the old name is kept as a deprecated alias.
1335 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1336 the BN_BLINDING structure gets an independent copy of the
1337 modulus. This means that the previous "BIGNUM *m" argument to
1338 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1339 essentially becomes "const BIGNUM *m", although we can't actually
1340 change this in the header file before 0.9.9. It allows
1341 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1342 enable BN_FLG_CONSTTIME.
1344 [Matthew D Wood (Intel Corp)]
1346 *) In the SSL/TLS server implementation, be strict about session ID
1347 context matching (which matters if an application uses a single
1348 external cache for different purposes). Previously,
1349 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1350 set. This did ensure strict client verification, but meant that,
1351 with applications using a single external cache for quite
1352 different requirements, clients could circumvent ciphersuite
1353 restrictions for a given session ID context by starting a session
1354 in a different context.
1357 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1358 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1359 authentication-only ciphersuites.
1362 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1363 not complete and could lead to a possible single byte overflow
1364 (CVE-2007-5135) [Ben Laurie]
1366 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1368 *) Since AES128 and AES256 (and similarly Camellia128 and
1369 Camellia256) share a single mask bit in the logic of
1370 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1371 kludge to work properly if AES128 is available and AES256 isn't
1372 (or if Camellia128 is available and Camellia256 isn't).
1375 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1376 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1377 When a point or a seed is encoded in a BIT STRING, we need to
1378 prevent the removal of trailing zero bits to get the proper DER
1379 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1380 of a NamedBitList, for which trailing 0 bits need to be removed.)
1383 *) Have SSL/TLS server implementation tolerate "mismatched" record
1384 protocol version while receiving ClientHello even if the
1385 ClientHello is fragmented. (The server can't insist on the
1386 particular protocol version it has chosen before the ServerHello
1387 message has informed the client about his choice.)
1390 *) Add RFC 3779 support.
1391 [Rob Austein for ARIN, Ben Laurie]
1393 *) Load error codes if they are not already present instead of using a
1394 static variable. This allows them to be cleanly unloaded and reloaded.
1395 Improve header file function name parsing.
1398 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1399 or CAPABILITY handshake as required by RFCs.
1402 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1404 *) Introduce limits to prevent malicious keys being able to
1405 cause a denial of service. (CVE-2006-2940)
1406 [Steve Henson, Bodo Moeller]
1408 *) Fix ASN.1 parsing of certain invalid structures that can result
1409 in a denial of service. (CVE-2006-2937) [Steve Henson]
1411 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1412 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1414 *) Fix SSL client code which could crash if connecting to a
1415 malicious SSLv2 server. (CVE-2006-4343)
1416 [Tavis Ormandy and Will Drewry, Google Security Team]
1418 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1419 match only those. Before that, "AES256-SHA" would be interpreted
1420 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1421 the same strength classification in 0.9.7h) as we currently only
1422 have a single AES bit in the ciphersuite description bitmap.
1423 That change, however, also applied to ciphersuite strings such as
1424 "RC4-MD5" that intentionally matched multiple ciphersuites --
1425 namely, SSL 2.0 ciphersuites in addition to the more common ones
1426 from SSL 3.0/TLS 1.0.
1428 So we change the selection algorithm again: Naming an explicit
1429 ciphersuite selects this one ciphersuite, and any other similar
1430 ciphersuite (same bitmap) from *other* protocol versions.
1431 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1432 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1434 Since SSL 2.0 does not have any ciphersuites for which the
1435 128/256 bit distinction would be relevant, this works for now.
1436 The proper fix will be to use different bits for AES128 and
1437 AES256, which would have avoided the problems from the beginning;
1438 however, bits are scarce, so we can only do this in a new release
1439 (not just a patchlevel) when we can change the SSL_CIPHER
1440 definition to split the single 'unsigned long mask' bitmap into
1441 multiple values to extend the available space.
1445 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1447 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1448 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1450 *) Add AES IGE and biIGE modes.
1453 *) Change the Unix randomness entropy gathering to use poll() when
1454 possible instead of select(), since the latter has some
1455 undesirable limitations.
1456 [Darryl Miles via Richard Levitte and Bodo Moeller]
1458 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1459 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1460 cannot be implicitly activated as part of, e.g., the "AES" alias.
1461 However, please upgrade to OpenSSL 0.9.9[-dev] for
1462 non-experimental use of the ECC ciphersuites to get TLS extension
1463 support, which is required for curve and point format negotiation
1464 to avoid potential handshake problems.
1467 *) Disable rogue ciphersuites:
1469 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1470 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1471 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1473 The latter two were purportedly from
1474 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1477 Also deactivate the remaining ciphersuites from
1478 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1479 unofficial, and the ID has long expired.
1482 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1483 dual-core machines) and other potential thread-safety issues.
1486 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1487 versions), which is now available for royalty-free use
1488 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1489 Also, add Camellia TLS ciphersuites from RFC 4132.
1491 To minimize changes between patchlevels in the OpenSSL 0.9.8
1492 series, Camellia remains excluded from compilation unless OpenSSL
1493 is configured with 'enable-camellia'.
1496 *) Disable the padding bug check when compression is in use. The padding
1497 bug check assumes the first packet is of even length, this is not
1498 necessarily true if compresssion is enabled and can result in false
1499 positives causing handshake failure. The actual bug test is ancient
1500 code so it is hoped that implementations will either have fixed it by
1501 now or any which still have the bug do not support compression.
1504 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1506 *) When applying a cipher rule check to see if string match is an explicit
1507 cipher suite and only match that one cipher suite if it is.
1510 *) Link in manifests for VC++ if needed.
1511 [Austin Ziegler <halostatue@gmail.com>]
1513 *) Update support for ECC-based TLS ciphersuites according to
1514 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1515 TLS extensions, which are supported starting with the 0.9.9
1516 branch, not in the OpenSSL 0.9.8 branch).
1519 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1520 opaque EVP_CIPHER_CTX handling.
1523 *) Fixes and enhancements to zlib compression code. We now only use
1524 "zlib1.dll" and use the default __cdecl calling convention on Win32
1525 to conform with the standards mentioned here:
1526 http://www.zlib.net/DLL_FAQ.txt
1527 Static zlib linking now works on Windows and the new --with-zlib-include
1528 --with-zlib-lib options to Configure can be used to supply the location
1529 of the headers and library. Gracefully handle case where zlib library
1533 *) Several fixes and enhancements to the OID generation code. The old code
1534 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1535 handle numbers larger than ULONG_MAX, truncated printing and had a
1536 non standard OBJ_obj2txt() behaviour.
1539 *) Add support for building of engines under engine/ as shared libraries
1540 under VC++ build system.
1543 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1544 Hopefully, we will not see any false combination of paths any more.
1547 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1549 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1550 (part of SSL_OP_ALL). This option used to disable the
1551 countermeasure against man-in-the-middle protocol-version
1552 rollback in the SSL 2.0 server implementation, which is a bad
1553 idea. (CVE-2005-2969)
1555 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1556 for Information Security, National Institute of Advanced Industrial
1557 Science and Technology [AIST], Japan)]
1559 *) Add two function to clear and return the verify parameter flags.
1562 *) Keep cipherlists sorted in the source instead of sorting them at
1563 runtime, thus removing the need for a lock.
1566 *) Avoid some small subgroup attacks in Diffie-Hellman.
1567 [Nick Mathewson and Ben Laurie]
1569 *) Add functions for well-known primes.
1572 *) Extended Windows CE support.
1573 [Satoshi Nakamura and Andy Polyakov]
1575 *) Initialize SSL_METHOD structures at compile time instead of during
1576 runtime, thus removing the need for a lock.
1579 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1580 attempting to decrypt each encrypted key in turn. Add support to
1584 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1586 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1589 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1592 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1593 key into the same file any more.
1596 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1599 *) Add -utf8 command line and config file option to 'ca'.
1600 [Stefan <stf@udoma.org]
1602 *) Removed the macro des_crypt(), as it seems to conflict with some
1603 libraries. Use DES_crypt().
1606 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1607 involves renaming the source and generated shared-libs for
1608 both. The engines will accept the corrected or legacy ids
1609 ('ncipher' and '4758_cca' respectively) when binding. NB,
1610 this only applies when building 'shared'.
1611 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1613 *) Add attribute functions to EVP_PKEY structure. Modify
1614 PKCS12_create() to recognize a CSP name attribute and
1615 use it. Make -CSP option work again in pkcs12 utility.
1618 *) Add new functionality to the bn blinding code:
1619 - automatic re-creation of the BN_BLINDING parameters after
1620 a fixed number of uses (currently 32)
1621 - add new function for parameter creation
1622 - introduce flags to control the update behaviour of the
1623 BN_BLINDING parameters
1624 - hide BN_BLINDING structure
1625 Add a second BN_BLINDING slot to the RSA structure to improve
1626 performance when a single RSA object is shared among several
1630 *) Add support for DTLS.
1631 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1633 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1634 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1637 *) Remove buggy and incompletet DH cert support from
1638 ssl/ssl_rsa.c and ssl/s3_both.c
1641 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1642 the apps/openssl applications.
1645 *) Compile clean with "-Wall -Wmissing-prototypes
1646 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1647 DEBUG_SAFESTACK must also be set.
1650 *) Change ./Configure so that certain algorithms can be disabled by default.
1651 The new counterpiece to "no-xxx" is "enable-xxx".
1653 The patented RC5 and MDC2 algorithms will now be disabled unless
1654 "enable-rc5" and "enable-mdc2", respectively, are specified.
1656 (IDEA remains enabled despite being patented. This is because IDEA
1657 is frequently required for interoperability, and there is no license
1658 fee for non-commercial use. As before, "no-idea" can be used to
1659 avoid this algorithm.)
1663 *) Add processing of proxy certificates (see RFC 3820). This work was
1664 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1665 EGEE (Enabling Grids for E-science in Europe).
1668 *) RC4 performance overhaul on modern architectures/implementations, such
1669 as Intel P4, IA-64 and AMD64.
1672 *) New utility extract-section.pl. This can be used specify an alternative
1673 section number in a pod file instead of having to treat each file as
1674 a separate case in Makefile. This can be done by adding two lines to the
1677 =for comment openssl_section:XXX
1679 The blank line is mandatory.
1683 *) New arguments -certform, -keyform and -pass for s_client and s_server
1684 to allow alternative format key and certificate files and passphrase
1688 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1689 update associated structures and add various utility functions.
1691 Add new policy related verify parameters, include policy checking in
1692 standard verify code. Enhance 'smime' application with extra parameters
1693 to support policy checking and print out.
1696 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1697 Nehemiah processors. These extensions support AES encryption in hardware
1698 as well as RNG (though RNG support is currently disabled).
1699 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1701 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1704 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1705 [Andy Polyakov and a number of other people]
1707 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1708 implementation contributed by IBM.
1709 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1711 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1712 exponent rather than 'unsigned long'. There is a corresponding change to
1713 the new 'rsa_keygen' element of the RSA_METHOD structure.
1714 [Jelte Jansen, Geoff Thorpe]
1716 *) Functionality for creating the initial serial number file is now
1717 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1719 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1720 number file to 1, which is bound to cause problems. To avoid
1721 the problems while respecting compatibility between different 0.9.7
1722 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1723 CA.pl for serial number initialization. With the new release 0.9.8,
1724 we can fix the problem directly in the 'ca' utility.)
1727 *) Reduced header interdepencies by declaring more opaque objects in
1728 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1729 give fewer recursive includes, which could break lazy source code - so
1730 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1731 developers should define this symbol when building and using openssl to
1732 ensure they track the recommended behaviour, interfaces, [etc], but
1733 backwards-compatible behaviour prevails when this isn't defined.
1736 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1739 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1740 This will generate a random key of the appropriate length based on the
1741 cipher context. The EVP_CIPHER can provide its own random key generation
1742 routine to support keys of a specific form. This is used in the des and
1743 3des routines to generate a key of the correct parity. Update S/MIME
1744 code to use new functions and hence generate correct parity DES keys.
1745 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1746 valid (weak or incorrect parity).
1749 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1750 as looking them up. This is useful when the verified structure may contain
1751 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1752 present unless the new PKCS7_NO_CRL flag is asserted.
1755 *) Extend ASN1 oid configuration module. It now additionally accepts the
1758 shortName = some long name, 1.2.3.4
1761 *) Reimplemented the BN_CTX implementation. There is now no more static
1762 limitation on the number of variables it can handle nor the depth of the
1763 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1764 information can now expand as required, and rather than having a single
1765 static array of bignums, BN_CTX now uses a linked-list of such arrays
1766 allowing it to expand on demand whilst maintaining the usefulness of
1767 BN_CTX's "bundling".
1770 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1771 to allow all RSA operations to function using a single BN_CTX.
1774 *) Preliminary support for certificate policy evaluation and checking. This
1775 is initially intended to pass the tests outlined in "Conformance Testing
1776 of Relying Party Client Certificate Path Processing Logic" v1.07.
1779 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1780 remained unused and not that useful. A variety of other little bignum
1781 tweaks and fixes have also been made continuing on from the audit (see
1785 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1786 associated ASN1, EVP and SSL functions and old ASN1 macros.
1789 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1790 and this should never fail. So the return value from the use of
1791 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1792 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1795 *) BN_CTX_get() should return zero-valued bignums, providing the same
1796 initialised value as BN_new().
1797 [Geoff Thorpe, suggested by Ulf Möller]
1799 *) Support for inhibitAnyPolicy certificate extension.
1802 *) An audit of the BIGNUM code is underway, for which debugging code is
1803 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1804 is considered valid when processing BIGNUMs, and causes execution to
1805 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1806 further steps are taken to deliberately pollute unused data in BIGNUM
1807 structures to try and expose faulty code further on. For now, openssl will
1808 (in its default mode of operation) continue to tolerate the inconsistent
1809 forms that it has tolerated in the past, but authors and packagers should
1810 consider trying openssl and their own applications when compiled with
1811 these debugging symbols defined. It will help highlight potential bugs in
1812 their own code, and will improve the test coverage for OpenSSL itself. At
1813 some point, these tighter rules will become openssl's default to improve
1814 maintainability, though the assert()s and other overheads will remain only
1815 in debugging configurations. See bn.h for more details.
1816 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1818 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1819 that can only be obtained through BN_CTX_new() (which implicitly
1820 initialises it). The presence of this function only made it possible
1821 to overwrite an existing structure (and cause memory leaks).
1824 *) Because of the callback-based approach for implementing LHASH as a
1825 template type, lh_insert() adds opaque objects to hash-tables and
1826 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1827 to clean up those corresponding objects before destroying the hash table
1828 (and losing the object pointers). So some over-zealous constifications in
1829 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1830 objects as "const" and the lh_doall[_arg] callback wrappers are not
1831 prototyped to have "const" restrictions on the object pointers they are
1832 given (and so aren't required to cast them away any more).
1835 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1836 (speed) prefers to use its own implementation. The two implementations
1837 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1838 its object type properly exposed (MS_TM) instead of casting to/from "char
1839 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1840 aren't necessarily the greatest nomenclatures - but this is what was used
1841 internally to the implementation so I've used that for now.
1844 *) Ensure that deprecated functions do not get compiled when
1845 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1846 the self-tests were still using deprecated key-generation functions so
1847 these have been updated also.
1850 *) Reorganise PKCS#7 code to separate the digest location functionality
1851 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1852 New function PKCS7_set_digest() to set the digest type for PKCS#7
1853 digestedData type. Add additional code to correctly generate the
1854 digestedData type and add support for this type in PKCS7 initialization
1858 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1859 structure of type "other".
1862 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1863 sure the loop does correctly stop and breaking ("division by zero")
1864 modulus operations are not performed. The (pre-generated) prime
1865 table crypto/bn/bn_prime.h was already correct, but it could not be
1866 re-generated on some platforms because of the "division by zero"
1867 situation in the script.
1868 [Ralf S. Engelschall]
1870 *) Update support for ECC-based TLS ciphersuites according to
1871 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1872 SHA-1 now is only used for "small" curves (where the
1873 representation of a field element takes up to 24 bytes); for
1874 larger curves, the field element resulting from ECDH is directly
1875 used as premaster secret.
1876 [Douglas Stebila (Sun Microsystems Laboratories)]
1878 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1879 curve secp160r1 to the tests.
1880 [Douglas Stebila (Sun Microsystems Laboratories)]
1882 *) Add the possibility to load symbols globally with DSO.
1883 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1885 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1886 control of the error stack.
1889 *) Add support for STORE in ENGINE.
1892 *) Add the STORE type. The intention is to provide a common interface
1893 to certificate and key stores, be they simple file-based stores, or
1894 HSM-type store, or LDAP stores, or...
1895 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1898 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1899 pass a list of arguments to any function as well as provide a way
1900 for a function to pass data back to the caller.
1903 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1904 works like BUF_strdup() but can be used to duplicate a portion of
1905 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1909 *) Add the function sk_find_ex() which works like sk_find(), but will
1910 return an index to an element even if an exact match couldn't be
1911 found. The index is guaranteed to point at the element where the
1912 searched-for key would be inserted to preserve sorting order.
1915 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1916 takes an extra flags argument for optional functionality. Currently,
1917 the following flags are defined:
1919 OBJ_BSEARCH_VALUE_ON_NOMATCH
1920 This one gets OBJ_bsearch_ex() to return a pointer to the first
1921 element where the comparing function returns a negative or zero
1924 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1925 This one gets OBJ_bsearch_ex() to return a pointer to the first
1926 element where the comparing function returns zero. This is useful
1927 if there are more than one element where the comparing function
1931 *) Make it possible to create self-signed certificates with 'openssl ca'
1932 in such a way that the self-signed certificate becomes part of the
1933 CA database and uses the same mechanisms for serial number generation
1934 as all other certificate signing. The new flag '-selfsign' enables
1935 this functionality. Adapt CA.sh and CA.pl.in.
1938 *) Add functionality to check the public key of a certificate request
1939 against a given private. This is useful to check that a certificate
1940 request can be signed by that key (self-signing).
1943 *) Make it possible to have multiple active certificates with the same
1944 subject in the CA index file. This is done only if the keyword
1945 'unique_subject' is set to 'no' in the main CA section (default
1946 if 'CA_default') of the configuration file. The value is saved
1947 with the database itself in a separate index attribute file,
1948 named like the index file with '.attr' appended to the name.
1951 *) Generate muti valued AVAs using '+' notation in config files for
1955 *) Support for nameConstraints certificate extension.
1958 *) Support for policyConstraints certificate extension.
1961 *) Support for policyMappings certificate extension.
1964 *) Make sure the default DSA_METHOD implementation only uses its
1965 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1966 and change its own handlers to be NULL so as to remove unnecessary
1967 indirection. This lets alternative implementations fallback to the
1968 default implementation more easily.
1971 *) Support for directoryName in GeneralName related extensions
1975 *) Make it possible to link applications using Makefile.shared.
1976 Make that possible even when linking against static libraries!
1979 *) Support for single pass processing for S/MIME signing. This now
1980 means that S/MIME signing can be done from a pipe, in addition
1981 cleartext signing (multipart/signed type) is effectively streaming
1982 and the signed data does not need to be all held in memory.
1984 This is done with a new flag PKCS7_STREAM. When this flag is set
1985 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1986 is done after the data is output (and digests calculated) in
1987 SMIME_write_PKCS7().
1990 *) Add full support for -rpath/-R, both in shared libraries and
1991 applications, at least on the platforms where it's known how
1995 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1996 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1997 will now compute a table of multiples of the generator that
1998 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1999 faster (notably in the case of a single point multiplication,
2000 scalar * generator).
2001 [Nils Larsch, Bodo Moeller]
2003 *) IPv6 support for certificate extensions. The various extensions
2004 which use the IP:a.b.c.d can now take IPv6 addresses using the
2005 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2009 *) Added an ENGINE that implements RSA by performing private key
2010 exponentiations with the GMP library. The conversions to and from
2011 GMP's mpz_t format aren't optimised nor are any montgomery forms
2012 cached, and on x86 it appears OpenSSL's own performance has caught up.
2013 However there are likely to be other architectures where GMP could
2014 provide a boost. This ENGINE is not built in by default, but it can be
2015 specified at Configure time and should be accompanied by the necessary
2016 linker additions, eg;
2017 ./config -DOPENSSL_USE_GMP -lgmp
2020 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2021 testing availability of engines with "-t" - the old behaviour is
2022 produced by increasing the feature's verbosity with "-tt".
2025 *) ECDSA routines: under certain error conditions uninitialized BN objects
2026 could be freed. Solution: make sure initialization is performed early
2027 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2031 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2032 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2033 software implementations. For DSA and DH, parameter generation can
2034 also be overriden by providing the appropriate method callbacks.
2037 *) Change the "progress" mechanism used in key-generation and
2038 primality testing to functions that take a new BN_GENCB pointer in
2039 place of callback/argument pairs. The new API functions have "_ex"
2040 postfixes and the older functions are reimplemented as wrappers for
2041 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2042 declarations of the old functions to help (graceful) attempts to
2043 migrate to the new functions. Also, the new key-generation API
2044 functions operate on a caller-supplied key-structure and return
2045 success/failure rather than returning a key or NULL - this is to
2046 help make "keygen" another member function of RSA_METHOD etc.
2048 Example for using the new callback interface:
2050 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2054 BN_GENCB_set(&my_cb, my_callback, my_arg);
2056 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2057 /* For the meaning of a, b in calls to my_callback(), see the
2058 * documentation of the function that calls the callback.
2059 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2060 * my_callback should return 1 if it wants BN_is_prime_ex()
2061 * to continue, or 0 to stop.
2066 *) Change the ZLIB compression method to be stateful, and make it
2067 available to TLS with the number defined in
2068 draft-ietf-tls-compression-04.txt.
2071 *) Add the ASN.1 structures and functions for CertificatePair, which
2072 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2074 CertificatePair ::= SEQUENCE {
2075 forward [0] Certificate OPTIONAL,
2076 reverse [1] Certificate OPTIONAL,
2077 -- at least one of the pair shall be present -- }
2079 Also implement the PEM functions to read and write certificate
2080 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2082 This needed to be defined, mostly for the sake of the LDAP
2083 attribute crossCertificatePair, but may prove useful elsewhere as
2087 *) Make it possible to inhibit symlinking of shared libraries in
2088 Makefile.shared, for Cygwin's sake.
2091 *) Extend the BIGNUM API by creating a function
2092 void BN_set_negative(BIGNUM *a, int neg);
2093 and a macro that behave like
2094 int BN_is_negative(const BIGNUM *a);
2096 to avoid the need to access 'a->neg' directly in applications.
2099 *) Implement fast modular reduction for pseudo-Mersenne primes
2100 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2101 EC_GROUP_new_curve_GFp() will now automatically use this
2103 [Nils Larsch <nla@trustcenter.de>]
2105 *) Add new lock type (CRYPTO_LOCK_BN).
2108 *) Change the ENGINE framework to automatically load engines
2109 dynamically from specific directories unless they could be
2110 found to already be built in or loaded. Move all the
2111 current engines except for the cryptodev one to a new
2113 The engines in engines/ are built as shared libraries if
2114 the "shared" options was given to ./Configure or ./config.
2115 Otherwise, they are inserted in libcrypto.a.
2116 /usr/local/ssl/engines is the default directory for dynamic
2117 engines, but that can be overriden at configure time through
2118 the usual use of --prefix and/or --openssldir, and at run
2119 time with the environment variable OPENSSL_ENGINES.
2120 [Geoff Thorpe and Richard Levitte]
2122 *) Add Makefile.shared, a helper makefile to build shared
2123 libraries. Addapt Makefile.org.
2126 *) Add version info to Win32 DLLs.
2127 [Peter 'Luna' Runestig" <peter@runestig.com>]
2129 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2130 can be added using this API to created arbitrary PKCS#12
2131 files while avoiding the low level API.
2133 New options to PKCS12_create(), key or cert can be NULL and
2134 will then be omitted from the output file. The encryption
2135 algorithm NIDs can be set to -1 for no encryption, the mac
2136 iteration count can be set to 0 to omit the mac.
2138 Enhance pkcs12 utility by making the -nokeys and -nocerts
2139 options work when creating a PKCS#12 file. New option -nomac
2140 to omit the mac, NONE can be set for an encryption algorithm.
2141 New code is modified to use the enhanced PKCS12_create()
2142 instead of the low level API.
2145 *) Extend ASN1 encoder to support indefinite length constructed
2146 encoding. This can output sequences tags and octet strings in
2147 this form. Modify pk7_asn1.c to support indefinite length
2148 encoding. This is experimental and needs additional code to
2149 be useful, such as an ASN1 bio and some enhanced streaming
2152 Extend template encode functionality so that tagging is passed
2153 down to the template encoder.
2156 *) Let 'openssl req' fail if an argument to '-newkey' is not
2157 recognized instead of using RSA as a default.
2160 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2161 As these are not official, they are not included in "ALL";
2162 the "ECCdraft" ciphersuite group alias can be used to select them.
2163 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2165 *) Add ECDH engine support.
2166 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2168 *) Add ECDH in new directory crypto/ecdh/.
2169 [Douglas Stebila (Sun Microsystems Laboratories)]
2171 *) Let BN_rand_range() abort with an error after 100 iterations
2172 without success (which indicates a broken PRNG).
2175 *) Change BN_mod_sqrt() so that it verifies that the input value
2176 is really the square of the return value. (Previously,
2177 BN_mod_sqrt would show GIGO behaviour.)
2180 *) Add named elliptic curves over binary fields from X9.62, SECG,
2181 and WAP/WTLS; add OIDs that were still missing.
2183 [Sheueling Chang Shantz and Douglas Stebila
2184 (Sun Microsystems Laboratories)]
2186 *) Extend the EC library for elliptic curves over binary fields
2187 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2190 EC_GF2m_simple_method
2194 EC_GROUP_new_curve_GF2m
2195 EC_GROUP_set_curve_GF2m
2196 EC_GROUP_get_curve_GF2m
2197 EC_POINT_set_affine_coordinates_GF2m
2198 EC_POINT_get_affine_coordinates_GF2m
2199 EC_POINT_set_compressed_coordinates_GF2m
2201 Point compression for binary fields is disabled by default for
2202 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2205 As binary polynomials are represented as BIGNUMs, various members
2206 of the EC_GROUP and EC_POINT data structures can be shared
2207 between the implementations for prime fields and binary fields;
2208 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2209 are essentially identical to their ..._GFp counterparts.
2210 (For simplicity, the '..._GFp' prefix has been dropped from
2211 various internal method names.)
2213 An internal 'field_div' method (similar to 'field_mul' and
2214 'field_sqr') has been added; this is used only for binary fields.
2216 [Sheueling Chang Shantz and Douglas Stebila
2217 (Sun Microsystems Laboratories)]
2219 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2220 through methods ('mul', 'precompute_mult').
2222 The generic implementations (now internally called 'ec_wNAF_mul'
2223 and 'ec_wNAF_precomputed_mult') remain the default if these
2224 methods are undefined.
2226 [Sheueling Chang Shantz and Douglas Stebila
2227 (Sun Microsystems Laboratories)]
2229 *) New function EC_GROUP_get_degree, which is defined through
2230 EC_METHOD. For curves over prime fields, this returns the bit
2231 length of the modulus.
2233 [Sheueling Chang Shantz and Douglas Stebila
2234 (Sun Microsystems Laboratories)]
2236 *) New functions EC_GROUP_dup, EC_POINT_dup.
2237 (These simply call ..._new and ..._copy).
2239 [Sheueling Chang Shantz and Douglas Stebila
2240 (Sun Microsystems Laboratories)]
2242 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2243 Polynomials are represented as BIGNUMs (where the sign bit is not
2244 used) in the following functions [macros]:
2247 BN_GF2m_sub [= BN_GF2m_add]
2248 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2249 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2250 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2252 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2253 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2254 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2255 BN_GF2m_cmp [= BN_ucmp]
2257 (Note that only the 'mod' functions are actually for fields GF(2^m).
2258 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2260 For some functions, an the irreducible polynomial defining a
2261 field can be given as an 'unsigned int[]' with strictly
2262 decreasing elements giving the indices of those bits that are set;
2263 i.e., p[] represents the polynomial
2264 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2266 p[0] > p[1] > ... > p[k] = 0.
2267 This applies to the following functions:
2272 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2273 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2275 BN_GF2m_mod_sqrt_arr
2276 BN_GF2m_mod_solve_quad_arr
2280 Conversion can be performed by the following functions:
2285 bntest.c has additional tests for binary polynomial arithmetic.
2287 Two implementations for BN_GF2m_mod_div() are available.
2288 The default algorithm simply uses BN_GF2m_mod_inv() and
2289 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2290 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2291 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2293 [Sheueling Chang Shantz and Douglas Stebila
2294 (Sun Microsystems Laboratories)]
2296 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2297 functionality is disabled at compile-time.
2298 [Douglas Stebila <douglas.stebila@sun.com>]
2300 *) Change default behaviour of 'openssl asn1parse' so that more
2301 information is visible when viewing, e.g., a certificate:
2303 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2304 mode the content of non-printable OCTET STRINGs is output in a
2305 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2306 avoid the appearance of a printable string.
2307 [Nils Larsch <nla@trustcenter.de>]
2309 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2311 EC_GROUP_set_asn1_flag()
2312 EC_GROUP_get_asn1_flag()
2313 EC_GROUP_set_point_conversion_form()
2314 EC_GROUP_get_point_conversion_form()
2315 These control ASN1 encoding details:
2316 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2317 has been set to OPENSSL_EC_NAMED_CURVE.
2318 - Points are encoded in uncompressed form by default; options for
2319 asn1_for are as for point2oct, namely
2320 POINT_CONVERSION_COMPRESSED
2321 POINT_CONVERSION_UNCOMPRESSED
2322 POINT_CONVERSION_HYBRID
2324 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2327 EC_GROUP_get0_seed()
2328 EC_GROUP_get_seed_len()
2329 This is used only for ASN1 purposes (so far).
2330 [Nils Larsch <nla@trustcenter.de>]
2332 *) Add 'field_type' member to EC_METHOD, which holds the NID
2333 of the appropriate field type OID. The new function
2334 EC_METHOD_get_field_type() returns this value.
2335 [Nils Larsch <nla@trustcenter.de>]
2340 EC_POINT_point2hex()
2341 EC_POINT_hex2point()
2342 providing useful interfaces to EC_POINT_point2oct() and
2343 EC_POINT_oct2point().
2344 [Nils Larsch <nla@trustcenter.de>]
2346 *) Change internals of the EC library so that the functions
2347 EC_GROUP_set_generator()
2348 EC_GROUP_get_generator()
2349 EC_GROUP_get_order()
2350 EC_GROUP_get_cofactor()
2351 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2352 to methods, which would lead to unnecessary code duplication when
2353 adding different types of curves.
2354 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2356 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2357 arithmetic, and such that modified wNAFs are generated
2358 (which avoid length expansion in many cases).
2361 *) Add a function EC_GROUP_check_discriminant() (defined via
2362 EC_METHOD) that verifies that the curve discriminant is non-zero.
2364 Add a function EC_GROUP_check() that makes some sanity tests
2365 on a EC_GROUP, its generator and order. This includes
2366 EC_GROUP_check_discriminant().
2367 [Nils Larsch <nla@trustcenter.de>]
2369 *) Add ECDSA in new directory crypto/ecdsa/.
2371 Add applications 'openssl ecparam' and 'openssl ecdsa'
2372 (these are based on 'openssl dsaparam' and 'openssl dsa').
2374 ECDSA support is also included in various other files across the
2375 library. Most notably,
2376 - 'openssl req' now has a '-newkey ecdsa:file' option;
2377 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2378 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2379 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2380 them suitable for ECDSA where domain parameters must be
2381 extracted before the specific public key;
2382 - ECDSA engine support has been added.
2383 [Nils Larsch <nla@trustcenter.de>]
2385 *) Include some named elliptic curves, and add OIDs from X9.62,
2386 SECG, and WAP/WTLS. Each curve can be obtained from the new
2388 EC_GROUP_new_by_curve_name(),
2389 and the list of available named curves can be obtained with
2390 EC_get_builtin_curves().
2391 Also add a 'curve_name' member to EC_GROUP objects, which can be
2393 EC_GROUP_set_curve_name()
2394 EC_GROUP_get_curve_name()
2395 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2397 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2398 was actually never needed) and in BN_mul(). The removal in BN_mul()
2399 required a small change in bn_mul_part_recursive() and the addition
2400 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2401 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2402 bn_sub_words() and bn_add_words() except they take arrays with
2406 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2408 *) In the SSL/TLS server implementation, be strict about session ID
2409 context matching (which matters if an application uses a single
2410 external cache for different purposes). Previously,
2411 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2412 set. This did ensure strict client verification, but meant that,
2413 with applications using a single external cache for quite
2414 different requirements, clients could circumvent ciphersuite
2415 restrictions for a given session ID context by starting a session
2416 in a different context.
2419 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2421 *) Cleanse PEM buffers before freeing them since they may contain
2423 [Benjamin Bennett <ben@psc.edu>]
2425 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2426 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2427 authentication-only ciphersuites.
2430 *) Since AES128 and AES256 share a single mask bit in the logic of
2431 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2432 kludge to work properly if AES128 is available and AES256 isn't.
2435 *) Expand security boundary to match 1.1.1 module.
2438 *) Remove redundant features: hash file source, editing of test vectors
2439 modify fipsld to use external fips_premain.c signature.
2442 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2443 run algorithm test programs.
2446 *) Make algorithm test programs more tolerant of whitespace.
2449 *) Have SSL/TLS server implementation tolerate "mismatched" record
2450 protocol version while receiving ClientHello even if the
2451 ClientHello is fragmented. (The server can't insist on the
2452 particular protocol version it has chosen before the ServerHello
2453 message has informed the client about his choice.)
2456 *) Load error codes if they are not already present instead of using a
2457 static variable. This allows them to be cleanly unloaded and reloaded.
2460 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2462 *) Introduce limits to prevent malicious keys being able to
2463 cause a denial of service. (CVE-2006-2940)
2464 [Steve Henson, Bodo Moeller]
2466 *) Fix ASN.1 parsing of certain invalid structures that can result
2467 in a denial of service. (CVE-2006-2937) [Steve Henson]
2469 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2470 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2472 *) Fix SSL client code which could crash if connecting to a
2473 malicious SSLv2 server. (CVE-2006-4343)
2474 [Tavis Ormandy and Will Drewry, Google Security Team]
2476 *) Change ciphersuite string processing so that an explicit
2477 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2478 will no longer include "AES128-SHA"), and any other similar
2479 ciphersuite (same bitmap) from *other* protocol versions (so that
2480 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2481 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2482 changes from 0.9.8b and 0.9.8d.
2485 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2487 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2488 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2490 *) Change the Unix randomness entropy gathering to use poll() when
2491 possible instead of select(), since the latter has some
2492 undesirable limitations.
2493 [Darryl Miles via Richard Levitte and Bodo Moeller]
2495 *) Disable rogue ciphersuites:
2497 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2498 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2499 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2501 The latter two were purportedly from
2502 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2505 Also deactive the remaining ciphersuites from
2506 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2507 unofficial, and the ID has long expired.
2510 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2511 dual-core machines) and other potential thread-safety issues.
2514 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2516 *) Adapt fipsld and the build system to link against the validated FIPS
2517 module in FIPS mode.
2520 *) Fixes for VC++ 2005 build under Windows.
2523 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2524 from a Windows bash shell such as MSYS. It is autodetected from the
2525 "config" script when run from a VC++ environment. Modify standard VC++
2526 build to use fipscanister.o from the GNU make build.
2529 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2531 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2532 The value now differs depending on if you build for FIPS or not.
2533 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2534 safely run with a non-FIPSed libcrypto, as it may crash because of
2535 the difference induced by this change.
2538 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2540 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2541 (part of SSL_OP_ALL). This option used to disable the
2542 countermeasure against man-in-the-middle protocol-version
2543 rollback in the SSL 2.0 server implementation, which is a bad
2544 idea. (CVE-2005-2969)
2546 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2547 for Information Security, National Institute of Advanced Industrial
2548 Science and Technology [AIST], Japan)]
2550 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2551 mainly for FIPS compliance and not fully integrated at this stage.
2554 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2555 the exponentiation using a fixed-length exponent. (Otherwise,
2556 the information leaked through timing could expose the secret key
2557 after many signatures; cf. Bleichenbacher's attack on DSA with
2561 *) Make a new fixed-window mod_exp implementation the default for
2562 RSA, DSA, and DH private-key operations so that the sequence of
2563 squares and multiplies and the memory access pattern are
2564 independent of the particular secret key. This will mitigate
2565 cache-timing and potential related attacks.
2567 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2568 and this is automatically used by BN_mod_exp_mont() if the new flag
2569 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2570 will use this BN flag for private exponents unless the flag
2571 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2572 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2574 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2576 *) Change the client implementation for SSLv23_method() and
2577 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2578 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2579 (Previously, the SSL 2.0 backwards compatible Client Hello
2580 message format would be used even with SSL_OP_NO_SSLv2.)
2583 *) Add support for smime-type MIME parameter in S/MIME messages which some
2587 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2588 a threadsafe manner. Modify rsa code to use new function and add calls
2589 to dsa and dh code (which had race conditions before).
2592 *) Include the fixed error library code in the C error file definitions
2593 instead of fixing them up at runtime. This keeps the error code
2594 structures constant.
2597 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2599 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2602 *) Fixes for newer kerberos headers. NB: the casts are needed because
2603 the 'length' field is signed on one version and unsigned on another
2604 with no (?) obvious way to tell the difference, without these VC++
2605 complains. Also the "definition" of FAR (blank) is no longer included
2606 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2607 some needed definitions.
2610 *) Undo Cygwin change.
2613 *) Added support for proxy certificates according to RFC 3820.
2614 Because they may be a security thread to unaware applications,
2615 they must be explicitely allowed in run-time. See
2616 docs/HOWTO/proxy_certificates.txt for further information.
2619 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2621 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2622 server and client random values. Previously
2623 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2624 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2626 This change has negligible security impact because:
2628 1. Server and client random values still have 24 bytes of pseudo random
2631 2. Server and client random values are sent in the clear in the initial
2634 3. The master secret is derived using the premaster secret (48 bytes in
2635 size for static RSA ciphersuites) as well as client server and random
2638 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2641 [Stephen Henson, reported by UK NISCC]
2643 *) Use Windows randomness collection on Cygwin.
2646 *) Fix hang in EGD/PRNGD query when communication socket is closed
2647 prematurely by EGD/PRNGD.
2648 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2650 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2653 *) Back-port of selected performance improvements from development
2654 branch, as well as improved support for PowerPC platforms.
2657 *) Add lots of checks for memory allocation failure, error codes to indicate
2658 failure and freeing up memory if a failure occurs.
2659 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2661 *) Add new -passin argument to dgst.
2664 *) Perform some character comparisons of different types in X509_NAME_cmp:
2665 this is needed for some certificates that reencode DNs into UTF8Strings
2666 (in violation of RFC3280) and can't or wont issue name rollover
2670 *) Make an explicit check during certificate validation to see that
2671 the CA setting in each certificate on the chain is correct. As a
2672 side effect always do the following basic checks on extensions,
2673 not just when there's an associated purpose to the check:
2675 - if there is an unhandled critical extension (unless the user
2676 has chosen to ignore this fault)
2677 - if the path length has been exceeded (if one is set at all)
2678 - that certain extensions fit the associated purpose (if one has
2682 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2684 *) Avoid a race condition when CRLs are checked in a multi threaded
2685 environment. This would happen due to the reordering of the revoked
2686 entries during signature checking and serial number lookup. Now the
2687 encoding is cached and the serial number sort performed under a lock.
2688 Add new STACK function sk_is_sorted().
2691 *) Add Delta CRL to the extension code.
2694 *) Various fixes to s3_pkt.c so alerts are sent properly.
2695 [David Holmes <d.holmes@f5.com>]
2697 *) Reduce the chances of duplicate issuer name and serial numbers (in
2698 violation of RFC3280) using the OpenSSL certificate creation utilities.
2699 This is done by creating a random 64 bit value for the initial serial
2700 number when a serial number file is created or when a self signed
2701 certificate is created using 'openssl req -x509'. The initial serial
2702 number file is created using 'openssl x509 -next_serial' in CA.pl
2703 rather than being initialized to 1.
2706 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2708 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2709 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2710 [Joe Orton, Steve Henson]
2712 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2714 [Joe Orton, Steve Henson]
2716 *) Make it possible to have multiple active certificates with the same
2717 subject in the CA index file. This is done only if the keyword
2718 'unique_subject' is set to 'no' in the main CA section (default
2719 if 'CA_default') of the configuration file. The value is saved
2720 with the database itself in a separate index attribute file,
2721 named like the index file with '.attr' appended to the name.
2724 *) X509 verify fixes. Disable broken certificate workarounds when
2725 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2726 keyUsage extension present. Don't accept CRLs with unhandled critical
2727 extensions: since verify currently doesn't process CRL extensions this
2728 rejects a CRL with *any* critical extensions. Add new verify error codes
2732 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2733 A clarification of RFC2560 will require the use of OCTET STRINGs and
2734 some implementations cannot handle the current raw format. Since OpenSSL
2735 copies and compares OCSP nonces as opaque blobs without any attempt at
2736 parsing them this should not create any compatibility issues.
2739 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2740 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2741 this HMAC (and other) operations are several times slower than OpenSSL
2745 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2746 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2748 *) Use the correct content when signing type "other".
2751 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2753 *) Fix various bugs revealed by running the NISCC test suite:
2755 Stop out of bounds reads in the ASN1 code when presented with
2756 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2758 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2760 If verify callback ignores invalid public key errors don't try to check
2761 certificate signature with the NULL public key.
2765 *) New -ignore_err option in ocsp application to stop the server
2766 exiting on the first error in a request.
2769 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2770 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2774 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2775 extra data after the compression methods not only for TLS 1.0
2776 but also for SSL 3.0 (as required by the specification).
2777 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2779 *) Change X509_certificate_type() to mark the key as exported/exportable
2780 when it's 512 *bits* long, not 512 bytes.
2783 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2784 blocks during encryption.
2787 *) Various fixes to base64 BIO and non blocking I/O. On write
2788 flushes were not handled properly if the BIO retried. On read
2789 data was not being buffered properly and had various logic bugs.
2790 This also affects blocking I/O when the data being decoded is a
2794 *) Various S/MIME bugfixes and compatibility changes:
2795 output correct application/pkcs7 MIME type if
2796 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2797 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2798 of files as .eml work). Correctly handle very long lines in MIME
2802 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2804 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2805 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2806 a protocol version number mismatch like a decryption error
2807 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2810 *) Turn on RSA blinding by default in the default implementation
2811 to avoid a timing attack. Applications that don't want it can call
2812 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2813 They would be ill-advised to do so in most cases.
2814 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2816 *) Change RSA blinding code so that it works when the PRNG is not
2817 seeded (in this case, the secret RSA exponent is abused as
2818 an unpredictable seed -- if it is not unpredictable, there
2819 is no point in blinding anyway). Make RSA blinding thread-safe
2820 by remembering the creator's thread ID in rsa->blinding and
2821 having all other threads use local one-time blinding factors
2822 (this requires more computation than sharing rsa->blinding, but
2823 avoids excessive locking; and if an RSA object is not shared
2824 between threads, blinding will still be very fast).
2827 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2828 ENGINE as defaults for all supported algorithms irrespective of
2829 the 'flags' parameter. 'flags' is now honoured, so applications
2830 should make sure they are passing it correctly.
2833 *) Target "mingw" now allows native Windows code to be generated in
2834 the Cygwin environment as well as with the MinGW compiler.
2837 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2839 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2840 via timing by performing a MAC computation even if incorrrect
2841 block cipher padding has been found. This is a countermeasure
2842 against active attacks where the attacker has to distinguish
2843 between bad padding and a MAC verification error. (CVE-2003-0078)
2845 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2846 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2847 Martin Vuagnoux (EPFL, Ilion)]
2849 *) Make the no-err option work as intended. The intention with no-err
2850 is not to have the whole error stack handling routines removed from
2851 libcrypto, it's only intended to remove all the function name and
2852 reason texts, thereby removing some of the footprint that may not
2853 be interesting if those errors aren't displayed anyway.
2855 NOTE: it's still possible for any application or module to have it's
2856 own set of error texts inserted. The routines are there, just not
2857 used by default when no-err is given.
2860 *) Add support for FreeBSD on IA64.
2861 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2863 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2864 Kerberos function mit_des_cbc_cksum(). Before this change,
2865 the value returned by DES_cbc_cksum() was like the one from
2866 mit_des_cbc_cksum(), except the bytes were swapped.
2867 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2869 *) Allow an application to disable the automatic SSL chain building.
2870 Before this a rather primitive chain build was always performed in
2871 ssl3_output_cert_chain(): an application had no way to send the
2872 correct chain if the automatic operation produced an incorrect result.
2874 Now the chain builder is disabled if either:
2876 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2878 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2880 The reasoning behind this is that an application would not want the
2881 auto chain building to take place if extra chain certificates are
2882 present and it might also want a means of sending no additional
2883 certificates (for example the chain has two certificates and the
2887 *) Add the possibility to build without the ENGINE framework.
2888 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2890 *) Under Win32 gmtime() can return NULL: check return value in
2891 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2894 *) DSA routines: under certain error conditions uninitialized BN objects
2895 could be freed. Solution: make sure initialization is performed early
2896 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2897 Nils Larsch <nla@trustcenter.de> via PR#459)
2900 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2901 checked on reconnect on the client side, therefore session resumption
2902 could still fail with a "ssl session id is different" error. This
2903 behaviour is masked when SSL_OP_ALL is used due to
2904 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2905 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2906 followup to PR #377.
2909 *) IA-32 assembler support enhancements: unified ELF targets, support
2910 for SCO/Caldera platforms, fix for Cygwin shared build.
2913 *) Add support for FreeBSD on sparc64. As a consequence, support for
2914 FreeBSD on non-x86 processors is separate from x86 processors on
2915 the config script, much like the NetBSD support.
2916 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2918 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2920 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2923 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2924 code (06) was taken as the first octet of the session ID and the last
2925 octet was ignored consequently. As a result SSLv2 client side session
2926 caching could not have worked due to the session ID mismatch between
2928 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2932 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2933 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2937 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2938 seems that in spite of existing for more than a year, many application
2939 author have done nothing to provide the necessary callbacks, which
2940 means that this particular engine will not work properly anywhere.
2941 This is a very unfortunate situation which forces us, in the name
2942 of usability, to give the hw_ncipher.c a static lock, which is part
2944 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2945 appear in 0.9.8 or later. We EXPECT application authors to have
2946 dealt properly with this when 0.9.8 is released (unless we actually
2947 make such changes in the libcrypto locking code that changes will
2948 have to be made anyway).
2951 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2952 octets have been read, EOF or an error occurs. Without this change
2953 some truncated ASN1 structures will not produce an error.
2956 *) Disable Heimdal support, since it hasn't been fully implemented.
2957 Still give the possibility to force the use of Heimdal, but with
2958 warnings and a request that patches get sent to openssl-dev.
2961 *) Add the VC-CE target, introduce the WINCE sysname, and add
2962 INSTALL.WCE and appropriate conditionals to make it build.
2963 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2965 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2966 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2967 edit numbers of the version.
2968 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2970 *) Introduce safe string copy and catenation functions
2971 (BUF_strlcpy() and BUF_strlcat()).
2972 [Ben Laurie (CHATS) and Richard Levitte]
2974 *) Avoid using fixed-size buffers for one-line DNs.
2975 [Ben Laurie (CHATS)]
2977 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2978 resizing buffers containing secrets, and use where appropriate.
2979 [Ben Laurie (CHATS)]
2981 *) Avoid using fixed size buffers for configuration file location.
2982 [Ben Laurie (CHATS)]
2984 *) Avoid filename truncation for various CA files.
2985 [Ben Laurie (CHATS)]
2987 *) Use sizeof in preference to magic numbers.
2988 [Ben Laurie (CHATS)]
2990 *) Avoid filename truncation in cert requests.
2991 [Ben Laurie (CHATS)]
2993 *) Add assertions to check for (supposedly impossible) buffer
2995 [Ben Laurie (CHATS)]
2997 *) Don't cache truncated DNS entries in the local cache (this could
2998 potentially lead to a spoofing attack).
2999 [Ben Laurie (CHATS)]
3001 *) Fix various buffers to be large enough for hex/decimal
3002 representations in a platform independent manner.
3003 [Ben Laurie (CHATS)]
3005 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3006 resizing buffers containing secrets, and use where appropriate.
3007 [Ben Laurie (CHATS)]
3009 *) Add BIO_indent() to avoid much slightly worrying code to do
3011 [Ben Laurie (CHATS)]
3013 *) Convert sprintf()/BIO_puts() to BIO_printf().
3014 [Ben Laurie (CHATS)]
3016 *) buffer_gets() could terminate with the buffer only half
3018 [Ben Laurie (CHATS)]
3020 *) Add assertions to prevent user-supplied crypto functions from
3021 overflowing internal buffers by having large block sizes, etc.
3022 [Ben Laurie (CHATS)]
3024 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3026 [Ben Laurie (CHATS)]
3028 *) Eliminate unused copy of key in RC4.
3029 [Ben Laurie (CHATS)]
3031 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3032 [Ben Laurie (CHATS)]
3034 *) Fix off-by-one error in EGD path.
3035 [Ben Laurie (CHATS)]
3037 *) If RANDFILE path is too long, ignore instead of truncating.
3038 [Ben Laurie (CHATS)]
3040 *) Eliminate unused and incorrectly sized X.509 structure
3042 [Ben Laurie (CHATS)]
3044 *) Eliminate unused and dangerous function knumber().
3045 [Ben Laurie (CHATS)]
3047 *) Eliminate unused and dangerous structure, KSSL_ERR.
3048 [Ben Laurie (CHATS)]
3050 *) Protect against overlong session ID context length in an encoded
3051 session object. Since these are local, this does not appear to be
3053 [Ben Laurie (CHATS)]
3055 *) Change from security patch (see 0.9.6e below) that did not affect
3056 the 0.9.6 release series:
3058 Remote buffer overflow in SSL3 protocol - an attacker could
3059 supply an oversized master key in Kerberos-enabled versions.
3061 [Ben Laurie (CHATS)]
3063 *) Change the SSL kerb5 codes to match RFC 2712.
3066 *) Make -nameopt work fully for req and add -reqopt switch.
3067 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3069 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3070 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3072 *) Make sure tests can be performed even if the corresponding algorithms
3073 have been removed entirely. This was also the last step to make
3074 OpenSSL compilable with DJGPP under all reasonable conditions.
3075 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3077 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3078 to allow version independent disabling of normally unselected ciphers,
3079 which may be activated as a side-effect of selecting a single cipher.
3081 (E.g., cipher list string "RSA" enables ciphersuites that are left
3082 out of "ALL" because they do not provide symmetric encryption.
3083 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3084 [Lutz Jaenicke, Bodo Moeller]
3086 *) Add appropriate support for separate platform-dependent build
3087 directories. The recommended way to make a platform-dependent
3088 build directory is the following (tested on Linux), maybe with
3091 # Place yourself outside of the OpenSSL source tree. In
3092 # this example, the environment variable OPENSSL_SOURCE
3093 # is assumed to contain the absolute OpenSSL source directory.
3094 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3095 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3096 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3097 mkdir -p `dirname $F`
3098 ln -s $OPENSSL_SOURCE/$F $F
3101 To be absolutely sure not to disturb the source tree, a "make clean"
3102 is a good thing. If it isn't successfull, don't worry about it,
3103 it probably means the source directory is very clean.
3106 *) Make sure any ENGINE control commands make local copies of string
3107 pointers passed to them whenever necessary. Otherwise it is possible
3108 the caller may have overwritten (or deallocated) the original string
3109 data when a later ENGINE operation tries to use the stored values.
3110 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3112 *) Improve diagnostics in file reading and command-line digests.
3113 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3115 *) Add AES modes CFB and OFB to the object database. Correct an
3116 error in AES-CFB decryption.
3119 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3120 allows existing EVP_CIPHER_CTX structures to be reused after
3121 calling EVP_*Final(). This behaviour is used by encryption
3122 BIOs and some applications. This has the side effect that
3123 applications must explicitly clean up cipher contexts with
3124 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3127 *) Check the values of dna and dnb in bn_mul_recursive before calling
3128 bn_mul_comba (a non zero value means the a or b arrays do not contain
3129 n2 elements) and fallback to bn_mul_normal if either is not zero.
3132 *) Fix escaping of non-ASCII characters when using the -subj option
3133 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3136 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3137 form for "surname", serialNumber has no short form.
3138 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3139 therefore remove "mail" short name for "internet 7".
3140 The OID for unique identifiers in X509 certificates is
3141 x500UniqueIdentifier, not uniqueIdentifier.
3142 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3145 *) Add an "init" command to the ENGINE config module and auto initialize
3146 ENGINEs. Without any "init" command the ENGINE will be initialized
3147 after all ctrl commands have been executed on it. If init=1 the
3148 ENGINE is initailized at that point (ctrls before that point are run
3149 on the uninitialized ENGINE and after on the initialized one). If
3150 init=0 then the ENGINE will not be iniatialized at all.
3153 *) Fix the 'app_verify_callback' interface so that the user-defined
3154 argument is actually passed to the callback: In the
3155 SSL_CTX_set_cert_verify_callback() prototype, the callback
3156 declaration has been changed from
3159 int (*cb)(X509_STORE_CTX *,void *);
3160 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3161 i=s->ctx->app_verify_callback(&ctx)
3162 has been changed into
3163 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3165 To update applications using SSL_CTX_set_cert_verify_callback(),
3166 a dummy argument can be added to their callback functions.
3167 [D. K. Smetters <smetters@parc.xerox.com>]
3169 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3170 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3172 *) Add and OPENSSL_LOAD_CONF define which will cause
3173 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3174 This allows older applications to transparently support certain
3175 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3176 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3177 load the config file and OPENSSL_add_all_algorithms_conf() which will
3178 always load it have also been added.
3181 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3182 Adjust NIDs and EVP layer.
3183 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3185 *) Config modules support in openssl utility.
3187 Most commands now load modules from the config file,
3188 though in a few (such as version) this isn't done
3189 because it couldn't be used for anything.
3191 In the case of ca and req the config file used is
3192 the same as the utility itself: that is the -config
3193 command line option can be used to specify an
3197 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3198 use "openssl_conf" if filename is NULL use default openssl config file.
3201 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3202 config section name. Add a new flag to tolerate a missing config file
3203 and move code to CONF_modules_load_file().
3206 *) Support for crypto accelerator cards from Accelerated Encryption
3207 Processing, www.aep.ie. (Use engine 'aep')
3208 The support was copied from 0.9.6c [engine] and adapted/corrected
3209 to work with the new engine framework.
3210 [AEP Inc. and Richard Levitte]
3212 *) Support for SureWare crypto accelerator cards from Baltimore
3213 Technologies. (Use engine 'sureware')
3214 The support was copied from 0.9.6c [engine] and adapted
3215 to work with the new engine framework.
3218 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3219 make the newer ENGINE framework commands for the CHIL engine work.
3220 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3222 *) Make it possible to produce shared libraries on ReliantUNIX.
3223 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3225 *) Add the configuration target debug-linux-ppro.
3226 Make 'openssl rsa' use the general key loading routines
3227 implemented in apps.c, and make those routines able to
3228 handle the key format FORMAT_NETSCAPE and the variant
3230 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3232 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3233 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3235 *) Add -keyform to rsautl, and document -engine.
3236 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3238 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3239 BIO_R_NO_SUCH_FILE error code rather than the generic
3240 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3243 *) Add new functions
3245 ERR_peek_last_error_line
3246 ERR_peek_last_error_line_data.
3247 These are similar to
3250 ERR_peek_error_line_data,
3251 but report on the latest error recorded rather than the first one
3252 still in the error queue.
3253 [Ben Laurie, Bodo Moeller]
3255 *) default_algorithms option in ENGINE config module. This allows things
3257 default_algorithms = ALL
3258 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3261 *) Prelminary ENGINE config module.
3264 *) New experimental application configuration code.
3267 *) Change the AES code to follow the same name structure as all other
3268 symmetric ciphers, and behave the same way. Move everything to
3269 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3270 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3272 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3273 [Ben Laurie and Theo de Raadt]
3275 *) Add option to output public keys in req command.
3276 [Massimiliano Pala madwolf@openca.org]
3278 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3279 (up to about 10% better than before for P-192 and P-224).
3282 *) New functions/macros
3284 SSL_CTX_set_msg_callback(ctx, cb)
3285 SSL_CTX_set_msg_callback_arg(ctx, arg)
3286 SSL_set_msg_callback(ssl, cb)
3287 SSL_set_msg_callback_arg(ssl, arg)
3289 to request calling a callback function
3291 void cb(int write_p, int version, int content_type,
3292 const void *buf, size_t len, SSL *ssl, void *arg)
3294 whenever a protocol message has been completely received
3295 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3296 protocol version according to which the SSL library interprets
3297 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3298 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3299 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3300 specification (change_cipher_spec(20), alert(21), handshake(22)).
3301 'buf' and 'len' point to the actual message, 'ssl' to the
3302 SSL object, and 'arg' is the application-defined value set by
3303 SSL[_CTX]_set_msg_callback_arg().
3305 'openssl s_client' and 'openssl s_server' have new '-msg' options
3306 to enable a callback that displays all protocol messages.
3309 *) Change the shared library support so shared libraries are built as
3310 soon as the corresponding static library is finished, and thereby get
3311 openssl and the test programs linked against the shared library.
3312 This still only happens when the keyword "shard" has been given to
3313 the configuration scripts.
3315 NOTE: shared library support is still an experimental thing, and
3316 backward binary compatibility is still not guaranteed.
3317 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3319 *) Add support for Subject Information Access extension.
3320 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3322 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3323 additional bytes when new memory had to be allocated, not just
3324 when reusing an existing buffer.
3327 *) New command line and configuration option 'utf8' for the req command.
3328 This allows field values to be specified as UTF8 strings.
3331 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3332 runs for the former and machine-readable output for the latter.
3335 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3336 of the e-mail address in the DN (i.e., it will go into a certificate
3337 extension only). The new configuration file option 'email_in_dn = no'
3338 has the same effect.
3339 [Massimiliano Pala madwolf@openca.org]
3341 *) Change all functions with names starting with des_ to be starting
3342 with DES_ instead. Add wrappers that are compatible with libdes,
3343 but are named _ossl_old_des_*. Finally, add macros that map the
3344 des_* symbols to the corresponding _ossl_old_des_* if libdes
3345 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3346 desired, the des_* symbols will be mapped to DES_*, with one
3349 Since we provide two compatibility mappings, the user needs to
3350 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3351 compatibility is desired. The default (i.e., when that macro
3352 isn't defined) is OpenSSL 0.9.6c compatibility.
3354 There are also macros that enable and disable the support of old
3355 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3356 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3357 are defined, the default will apply: to support the old des routines.
3359 In either case, one must include openssl/des.h to get the correct
3360 definitions. Do not try to just include openssl/des_old.h, that
3363 NOTE: This is a major break of an old API into a new one. Software
3364 authors are encouraged to switch to the DES_ style functions. Some
3365 time in the future, des_old.h and the libdes compatibility functions
3366 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3367 default), and then completely removed.
3370 *) Test for certificates which contain unsupported critical extensions.
3371 If such a certificate is found during a verify operation it is
3372 rejected by default: this behaviour can be overridden by either
3373 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3374 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3375 X509_supported_extension() has also been added which returns 1 if a
3376 particular extension is supported.
3379 *) Modify the behaviour of EVP cipher functions in similar way to digests
3380 to retain compatibility with existing code.
3383 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3384 compatibility with existing code. In particular the 'ctx' parameter does
3385 not have to be to be initialized before the call to EVP_DigestInit() and
3386 it is tidied up after a call to EVP_DigestFinal(). New function
3387 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3388 EVP_MD_CTX_copy() changed to not require the destination to be
3389 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3390 requires the destination to be valid.
3392 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3393 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3396 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3397 so that complete 'Handshake' protocol structures are kept in memory
3398 instead of overwriting 'msg_type' and 'length' with 'body' data.
3401 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3402 [Massimo Santin via Richard Levitte]
3404 *) Major restructuring to the underlying ENGINE code. This includes
3405 reduction of linker bloat, separation of pure "ENGINE" manipulation
3406 (initialisation, etc) from functionality dealing with implementations
3407 of specific crypto iterfaces. This change also introduces integrated
3408 support for symmetric ciphers and digest implementations - so ENGINEs
3409 can now accelerate these by providing EVP_CIPHER and EVP_MD
3410 implementations of their own. This is detailed in crypto/engine/README
3411 as it couldn't be adequately described here. However, there are a few
3412 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3413 were changed in the original introduction of ENGINE code have now
3414 reverted back - the hooking from this code to ENGINE is now a good
3415 deal more passive and at run-time, operations deal directly with
3416 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3417 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3418 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3419 they were not being used by the framework as there is no concept of a
3420 BIGNUM_METHOD and they could not be generalised to the new
3421 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3422 ENGINE_cpy() has been removed as it cannot be consistently defined in
3426 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3429 *) Change mkdef.pl to sort symbols that get the same entry number,
3430 and make sure the automatically generated functions ERR_load_*
3431 become part of libeay.num as well.
3434 *) New function SSL_renegotiate_pending(). This returns true once
3435 renegotiation has been requested (either SSL_renegotiate() call
3436 or HelloRequest/ClientHello receveived from the peer) and becomes
3437 false once a handshake has been completed.
3438 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3439 sends a HelloRequest, but does not ensure that a handshake takes
3440 place. SSL_renegotiate_pending() is useful for checking if the
3441 client has followed the request.)
3444 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3445 By default, clients may request session resumption even during
3446 renegotiation (if session ID contexts permit); with this option,
3447 session resumption is possible only in the first handshake.
3449 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3450 more bits available for options that should not be part of
3451 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3454 *) Add some demos for certificate and certificate request creation.
3457 *) Make maximum certificate chain size accepted from the peer application
3458 settable (SSL*_get/set_max_cert_list()), as proposed by
3459 "Douglas E. Engert" <deengert@anl.gov>.
3462 *) Add support for shared libraries for Unixware-7
3463 (Boyd Lynn Gerber <gerberb@zenez.com>).
3466 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3467 be done prior to destruction. Use this to unload error strings from
3468 ENGINEs that load their own error strings. NB: This adds two new API
3469 functions to "get" and "set" this destroy handler in an ENGINE.
3472 *) Alter all existing ENGINE implementations (except "openssl" and
3473 "openbsd") to dynamically instantiate their own error strings. This
3474 makes them more flexible to be built both as statically-linked ENGINEs
3475 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3476 Also, add stub code to each that makes building them as self-contained
3477 shared-libraries easier (see README.ENGINE).
3480 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3481 implementations into applications that are completely implemented in
3482 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3483 commands that can be used to configure what shared-library to load and
3484 to control aspects of the way it is handled. Also, made an update to
3485 the README.ENGINE file that brings its information up-to-date and
3486 provides some information and instructions on the "dynamic" ENGINE
3487 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3490 *) Make it possible to unload ranges of ERR strings with a new
3491 "ERR_unload_strings" function.
3494 *) Add a copy() function to EVP_MD.
3497 *) Make EVP_MD routines take a context pointer instead of just the
3498 md_data void pointer.
3501 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3502 that the digest can only process a single chunk of data
3503 (typically because it is provided by a piece of
3504 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3505 is only going to provide a single chunk of data, and hence the
3506 framework needn't accumulate the data for oneshot drivers.
3509 *) As with "ERR", make it possible to replace the underlying "ex_data"
3510 functions. This change also alters the storage and management of global
3511 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3512 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3513 index counters. The API functions that use this state have been changed
3514 to take a "class_index" rather than pointers to the class's local STACK
3515 and counter, and there is now an API function to dynamically create new
3516 classes. This centralisation allows us to (a) plug a lot of the
3517 thread-safety problems that existed, and (b) makes it possible to clean
3518 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3519 such data would previously have always leaked in application code and
3520 workarounds were in place to make the memory debugging turn a blind eye
3521 to it. Application code that doesn't use this new function will still
3522 leak as before, but their memory debugging output will announce it now
3523 rather than letting it slide.
3525 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3526 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3527 has a return value to indicate success or failure.
3530 *) Make it possible to replace the underlying "ERR" functions such that the
3531 global state (2 LHASH tables and 2 locks) is only used by the "default"
3532 implementation. This change also adds two functions to "get" and "set"
3533 the implementation prior to it being automatically set the first time
3534 any other ERR function takes place. Ie. an application can call "get",
3535 pass the return value to a module it has just loaded, and that module
3536 can call its own "set" function using that value. This means the
3537 module's "ERR" operations will use (and modify) the error state in the
3538 application and not in its own statically linked copy of OpenSSL code.
3541 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3542 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3543 the operation, and provides a more encapsulated way for external code
3544 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3545 to use these functions rather than manually incrementing the counts.
3547 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3550 *) Add EVP test program.
3553 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3556 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3557 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3558 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3559 These allow a CRL to be built without having to access X509_CRL fields
3560 directly. Modify 'ca' application to use new functions.
3563 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3564 bug workarounds. Rollback attack detection is a security feature.
3565 The problem will only arise on OpenSSL servers when TLSv1 is not
3566 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3567 Software authors not wanting to support TLSv1 will have special reasons
3568 for their choice and can explicitly enable this option.
3569 [Bodo Moeller, Lutz Jaenicke]
3571 *) Rationalise EVP so it can be extended: don't include a union of
3572 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3573 (similar to those existing for EVP_CIPHER_CTX).
3578 EVP_MD_CTX_init(&md); /* new function call */
3579 EVP_DigestInit(&md, EVP_sha1());
3580 EVP_DigestUpdate(&md, in, len);
3581 EVP_DigestFinal(&md, out, NULL);
3582 EVP_MD_CTX_cleanup(&md); /* new function call */
3586 *) Make DES key schedule conform to the usual scheme, as well as
3587 correcting its structure. This means that calls to DES functions
3588 now have to pass a pointer to a des_key_schedule instead of a
3589 plain des_key_schedule (which was actually always a pointer
3592 des_key_schedule ks;
3594 des_set_key_checked(..., &ks);
3595 des_ncbc_encrypt(..., &ks, ...);
3597 (Note that a later change renames 'des_...' into 'DES_...'.)
3600 *) Initial reduction of linker bloat: the use of some functions, such as
3601 PEM causes large amounts of unused functions to be linked in due to
3602 poor organisation. For example pem_all.c contains every PEM function
3603 which has a knock on effect of linking in large amounts of (unused)
3604 ASN1 code. Grouping together similar functions and splitting unrelated
3605 functions prevents this.
3608 *) Cleanup of EVP macros.
3611 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3612 correct _ecb suffix.
3615 *) Add initial OCSP responder support to ocsp application. The
3616 revocation information is handled using the text based index
3617 use by the ca application. The responder can either handle
3618 requests generated internally, supplied in files (for example
3619 via a CGI script) or using an internal minimal server.
3622 *) Add configuration choices to get zlib compression for TLS.
3625 *) Changes to Kerberos SSL for RFC 2712 compliance:
3626 1. Implemented real KerberosWrapper, instead of just using
3627 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3628 2. Implemented optional authenticator field of KerberosWrapper.
3630 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3631 and authenticator structs; see crypto/krb5/.
3633 Generalized Kerberos calls to support multiple Kerberos libraries.
3634 [Vern Staats <staatsvr@asc.hpc.mil>,
3635 Jeffrey Altman <jaltman@columbia.edu>
3636 via Richard Levitte]
3638 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3639 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3640 values for each of the key sizes rather than having just
3641 parameters (and 'speed' generating keys each time).
3644 *) Speed up EVP routines.
3647 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3648 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3649 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3650 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3652 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3653 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3654 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3657 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3659 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3662 *) Added the OS2-EMX target.
3663 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3665 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3666 to support NCONF routines in extension code. New function CONF_set_nconf()
3667 to allow functions which take an NCONF to also handle the old LHASH
3668 structure: this means that the old CONF compatible routines can be
3669 retained (in particular wrt extensions) without having to duplicate the
3670 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3673 *) Enhance the general user interface with mechanisms for inner control
3674 and with possibilities to have yes/no kind of prompts.
3677 *) Change all calls to low level digest routines in the library and
3678 applications to use EVP. Add missing calls to HMAC_cleanup() and
3679 don't assume HMAC_CTX can be copied using memcpy().
3680 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3682 *) Add the possibility to control engines through control names but with
3683 arbitrary arguments instead of just a string.
3684 Change the key loaders to take a UI_METHOD instead of a callback
3685 function pointer. NOTE: this breaks binary compatibility with earlier
3686 versions of OpenSSL [engine].
3687 Adapt the nCipher code for these new conditions and add a card insertion
3691 *) Enhance the general user interface with mechanisms to better support
3692 dialog box interfaces, application-defined prompts, the possibility
3693 to use defaults (for example default passwords from somewhere else)
3694 and interrupts/cancellations.
3697 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3698 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3701 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3702 tidy up some unnecessarily weird code in 'sk_new()').
3703 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3705 *) Change the key loading routines for ENGINEs to use the same kind
3706 callback (pem_password_cb) as all other routines that need this
3710 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3711 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3712 than this minimum value is recommended.
3715 *) New random seeder for OpenVMS, using the system process statistics
3716 that are easily reachable.
3719 *) Windows apparently can't transparently handle global
3720 variables defined in DLLs. Initialisations such as:
3722 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3724 wont compile. This is used by the any applications that need to
3725 declare their own ASN1 modules. This was fixed by adding the option
3726 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3727 needed for static libraries under Win32.
3730 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3731 setting of purpose and trust fields. New X509_STORE trust and
3732 purpose functions and tidy up setting in other SSL functions.
3735 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3736 structure. These are inherited by X509_STORE_CTX when it is
3737 initialised. This allows various defaults to be set in the
3738 X509_STORE structure (such as flags for CRL checking and custom
3739 purpose or trust settings) for functions which only use X509_STORE_CTX
3740 internally such as S/MIME.
3742 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3743 trust settings if they are not set in X509_STORE. This allows X509_STORE
3744 purposes and trust (in S/MIME for example) to override any set by default.
3746 Add command line options for CRL checking to smime, s_client and s_server
3750 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3751 are set then the CRL is looked up in the X509_STORE structure and
3752 its validity and signature checked, then if the certificate is found
3753 in the CRL the verify fails with a revoked error.
3755 Various new CRL related callbacks added to X509_STORE_CTX structure.
3757 Command line options added to 'verify' application to support this.
3759 This needs some additional work, such as being able to handle multiple
3760 CRLs with different times, extension based lookup (rather than just
3761 by subject name) and ultimately more complete V2 CRL extension
3765 *) Add a general user interface API (crypto/ui/). This is designed
3766 to replace things like des_read_password and friends (backward
3767 compatibility functions using this new API are provided).
3768 The purpose is to remove prompting functions from the DES code
3769 section as well as provide for prompting through dialog boxes in
3770 a window system and the like.
3773 *) Add "ex_data" support to ENGINE so implementations can add state at a
3774 per-structure level rather than having to store it globally.
3777 *) Make it possible for ENGINE structures to be copied when retrieved by
3778 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3779 This causes the "original" ENGINE structure to act like a template,
3780 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3781 operational state can be localised to each ENGINE structure, despite the
3782 fact they all share the same "methods". New ENGINE structures returned in
3783 this case have no functional references and the return value is the single
3784 structural reference. This matches the single structural reference returned
3785 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3789 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3790 needs to match any other type at all we need to manually clear the
3794 *) Changes to the "openssl engine" utility to include;
3795 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3796 about an ENGINE's available control commands.
3797 - executing control commands from command line arguments using the
3798 '-pre' and '-post' switches. '-post' is only used if '-t' is
3799 specified and the ENGINE is successfully initialised. The syntax for
3800 the individual commands are colon-separated, for example;
3801 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3804 *) New dynamic control command support for ENGINEs. ENGINEs can now
3805 declare their own commands (numbers), names (strings), descriptions,
3806 and input types for run-time discovery by calling applications. A
3807 subset of these commands are implicitly classed as "executable"
3808 depending on their input type, and only these can be invoked through
3809 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3810 can be based on user input, config files, etc). The distinction is
3811 that "executable" commands cannot return anything other than a boolean
3812 result and can only support numeric or string input, whereas some
3813 discoverable commands may only be for direct use through
3814 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3815 pointers, or other custom uses. The "executable" commands are to
3816 support parameterisations of ENGINE behaviour that can be
3817 unambiguously defined by ENGINEs and used consistently across any
3818 OpenSSL-based application. Commands have been added to all the
3819 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3820 control over shared-library paths without source code alterations.
3823 *) Changed all ENGINE implementations to dynamically allocate their
3824 ENGINEs rather than declaring them statically. Apart from this being
3825 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3826 this also allows the implementations to compile without using the
3827 internal engine_int.h header.
3830 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3831 'const' value. Any code that should be able to modify a RAND_METHOD
3832 should already have non-const pointers to it (ie. they should only
3833 modify their own ones).
3836 *) Made a variety of little tweaks to the ENGINE code.
3837 - "atalla" and "ubsec" string definitions were moved from header files
3838 to C code. "nuron" string definitions were placed in variables
3839 rather than hard-coded - allowing parameterisation of these values
3840 later on via ctrl() commands.
3841 - Removed unused "#if 0"'d code.
3842 - Fixed engine list iteration code so it uses ENGINE_free() to release
3843 structural references.
3844 - Constified the RAND_METHOD element of ENGINE structures.
3845 - Constified various get/set functions as appropriate and added
3846 missing functions (including a catch-all ENGINE_cpy that duplicates
3847 all ENGINE values onto a new ENGINE except reference counts/state).
3848 - Removed NULL parameter checks in get/set functions. Setting a method
3849 or function to NULL is a way of cancelling out a previously set
3850 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3851 and doesn't justify the extra error symbols and code.
3852 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3853 flags from engine_int.h to engine.h.
3854 - Changed prototypes for ENGINE handler functions (init(), finish(),
3855 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3858 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3859 to the algorithm using long division. The binary algorithm can be
3860 used only if the modulus is odd. On 32-bit systems, it is faster
3861 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3862 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3863 up to 450 bits. In 64-bit environments, the binary algorithm
3864 appears to be advantageous for much longer moduli; here we use it
3865 for moduli up to 2048 bits.
3868 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3869 could not support the combine flag in choice fields.
3872 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3873 extensions from a certificate request to the certificate.
3876 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3877 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3878 file: this allows the display of the certificate about to be
3879 signed to be customised, to allow certain fields to be included
3880 or excluded and extension details. The old system didn't display
3881 multicharacter strings properly, omitted fields not in the policy
3882 and couldn't display additional details such as extensions.
3885 *) Function EC_POINTs_mul for multiple scalar multiplication
3886 of an arbitrary number of elliptic curve points
3887 \sum scalars[i]*points[i],
3888 optionally including the generator defined for the EC_GROUP:
3889 scalar*generator + \sum scalars[i]*points[i].
3891 EC_POINT_mul is a simple wrapper function for the typical case
3892 that the point list has just one item (besides the optional
3896 *) First EC_METHODs for curves over GF(p):
3898 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3899 operations and provides various method functions that can also
3900 operate with faster implementations of modular arithmetic.
3902 EC_GFp_mont_method() reuses most functions that are part of
3903 EC_GFp_simple_method, but uses Montgomery arithmetic.
3905 [Bodo Moeller; point addition and point doubling
3906 implementation directly derived from source code provided by
3907 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3909 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3910 crypto/ec/ec_lib.c):
3912 Curves are EC_GROUP objects (with an optional group generator)
3913 based on EC_METHODs that are built into the library.
3915 Points are EC_POINT objects based on EC_GROUP objects.
3917 Most of the framework would be able to handle curves over arbitrary
3918 finite fields, but as there are no obvious types for fields other
3919 than GF(p), some functions are limited to that for now.
3922 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3923 that the file contains a complete HTTP response.
3926 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3927 change the def and num file printf format specifier from "%-40sXXX"
3928 to "%-39s XXX". The latter will always guarantee a space after the
3929 field while the former will cause them to run together if the field
3930 is 40 of more characters long.
3933 *) Constify the cipher and digest 'method' functions and structures
3934 and modify related functions to take constant EVP_MD and EVP_CIPHER
3938 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3939 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3942 *) Modify EVP_Digest*() routines so they now return values. Although the
3943 internal software routines can never fail additional hardware versions
3947 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3949 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3950 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3953 ERR_R_NESTED_ASN1_ERROR
3955 ERR_R_MISSING_ASN1_EOS
3956 were 4 .. 9, conflicting with
3957 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3959 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3960 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3962 Add new error code 'ERR_R_INTERNAL_ERROR'.
3965 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3969 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3970 sets the subject name for a new request or supersedes the
3971 subject name in a given request. Formats that can be parsed are
3972 'CN=Some Name, OU=myOU, C=IT'
3974 'CN=Some Name/OU=myOU/C=IT'.
3976 Add options '-batch' and '-verbose' to 'openssl req'.
3977 [Massimiliano Pala <madwolf@hackmasters.net>]
3979 *) Introduce the possibility to access global variables through
3980 functions on platform were that's the best way to handle exporting
3981 global variables in shared libraries. To enable this functionality,
3982 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3983 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3984 is normally done by Configure or something similar).
3986 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3987 in the source file (foo.c) like this:
3989 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3990 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3992 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3993 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3995 OPENSSL_DECLARE_GLOBAL(int,foo);
3996 #define foo OPENSSL_GLOBAL_REF(foo)
3997 OPENSSL_DECLARE_GLOBAL(double,bar);
3998 #define bar OPENSSL_GLOBAL_REF(bar)
4000 The #defines are very important, and therefore so is including the
4001 header file everywhere where the defined globals are used.
4003 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4004 of ASN.1 items, but that structure is a bit different.
4006 The largest change is in util/mkdef.pl which has been enhanced with
4007 better and easier to understand logic to choose which symbols should
4008 go into the Windows .def files as well as a number of fixes and code
4009 cleanup (among others, algorithm keywords are now sorted
4010 lexicographically to avoid constant rewrites).
4013 *) In BN_div() keep a copy of the sign of 'num' before writing the
4014 result to 'rm' because if rm==num the value will be overwritten
4015 and produce the wrong result if 'num' is negative: this caused
4016 problems with BN_mod() and BN_nnmod().
4019 *) Function OCSP_request_verify(). This checks the signature on an
4020 OCSP request and verifies the signer certificate. The signer
4021 certificate is just checked for a generic purpose and OCSP request
4025 *) Add OCSP_check_validity() function to check the validity of OCSP
4026 responses. OCSP responses are prepared in real time and may only
4027 be a few seconds old. Simply checking that the current time lies
4028 between thisUpdate and nextUpdate max reject otherwise valid responses
4029 caused by either OCSP responder or client clock inaccuracy. Instead
4030 we allow thisUpdate and nextUpdate to fall within a certain period of
4031 the current time. The age of the response can also optionally be
4032 checked. Two new options -validity_period and -status_age added to
4036 *) If signature or public key algorithm is unrecognized print out its
4037 OID rather that just UNKNOWN.
4040 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4041 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4042 ID to be generated from the issuer certificate alone which can then be
4043 passed to OCSP_id_issuer_cmp().
4046 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4047 ASN1 modules to export functions returning ASN1_ITEM pointers
4048 instead of the ASN1_ITEM structures themselves. This adds several
4049 new macros which allow the underlying ASN1 function/structure to
4050 be accessed transparently. As a result code should not use ASN1_ITEM
4051 references directly (such as &X509_it) but instead use the relevant
4052 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4053 use of the new ASN1 code on platforms where exporting structures
4054 is problematical (for example in shared libraries) but exporting
4055 functions returning pointers to structures is not.
4058 *) Add support for overriding the generation of SSL/TLS session IDs.
4059 These callbacks can be registered either in an SSL_CTX or per SSL.
4060 The purpose of this is to allow applications to control, if they wish,
4061 the arbitrary values chosen for use as session IDs, particularly as it
4062 can be useful for session caching in multiple-server environments. A
4063 command-line switch for testing this (and any client code that wishes
4064 to use such a feature) has been added to "s_server".
4065 [Geoff Thorpe, Lutz Jaenicke]
4067 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4068 of the form '#if defined(...) || defined(...) || ...' and
4069 '#if !defined(...) && !defined(...) && ...'. This also avoids
4070 the growing number of special cases it was previously handling.
4073 *) Make all configuration macros available for application by making
4074 sure they are available in opensslconf.h, by giving them names starting
4075 with "OPENSSL_" to avoid conflicts with other packages and by making
4076 sure e_os2.h will cover all platform-specific cases together with
4078 Additionally, it is now possible to define configuration/platform-
4079 specific names (called "system identities"). In the C code, these
4080 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4081 macro with the name beginning with "OPENSSL_SYS_", which is determined
4082 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4086 *) New option -set_serial to 'req' and 'x509' this allows the serial
4087 number to use to be specified on the command line. Previously self
4088 signed certificates were hard coded with serial number 0 and the
4089 CA options of 'x509' had to use a serial number in a file which was
4093 *) New options to 'ca' utility to support V2 CRL entry extensions.
4094 Currently CRL reason, invalidity date and hold instruction are
4095 supported. Add new CRL extensions to V3 code and some new objects.
4098 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4099 disable standard block padding (aka PKCS#5 padding) in the EVP
4100 API, which was previously mandatory. This means that the data is
4101 not padded in any way and so the total length much be a multiple
4102 of the block size, otherwise an error occurs.
4105 *) Initial (incomplete) OCSP SSL support.
4108 *) New function OCSP_parse_url(). This splits up a URL into its host,
4109 port and path components: primarily to parse OCSP URLs. New -url
4110 option to ocsp utility.
4113 *) New nonce behavior. The return value of OCSP_check_nonce() now
4114 reflects the various checks performed. Applications can decide
4115 whether to tolerate certain situations such as an absent nonce
4116 in a response when one was present in a request: the ocsp application
4117 just prints out a warning. New function OCSP_add1_basic_nonce()
4118 this is to allow responders to include a nonce in a response even if
4119 the request is nonce-less.
4122 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4123 skipped when using openssl x509 multiple times on a single input file,
4124 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4127 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4128 set string type: to handle setting ASN1_TIME structures. Fix ca
4129 utility to correctly initialize revocation date of CRLs.
4132 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4133 the clients preferred ciphersuites and rather use its own preferences.
4134 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4135 Internet Explorer by ensuring unchanged hash method during stepup.
4136 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4139 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4140 to aes and add a new 'exist' option to print out symbols that don't
4144 *) Additional options to ocsp utility to allow flags to be set and
4145 additional certificates supplied.
4148 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4149 OCSP client a number of certificate to only verify the response
4153 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4154 handle the new API. Currently only ECB, CBC modes supported. Add new
4157 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4158 Encryption Standard (AES) Ciphersuites for Transport Layer
4159 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4160 not enabled by default and were not part of the "ALL" ciphersuite
4161 alias because they were not yet official; they could be
4162 explicitly requested by specifying the "AESdraft" ciphersuite
4163 group alias. In the final release of OpenSSL 0.9.7, the group
4164 alias is called "AES" and is part of "ALL".)
4165 [Ben Laurie, Steve Henson, Bodo Moeller]
4167 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4168 request to response.
4171 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4172 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4173 extract information from a certificate request. OCSP_response_create()
4174 creates a response and optionally adds a basic response structure.
4175 OCSP_basic_add1_status() adds a complete single response to a basic
4176 response and returns the OCSP_SINGLERESP structure just added (to allow
4177 extensions to be included for example). OCSP_basic_add1_cert() adds a
4178 certificate to a basic response and OCSP_basic_sign() signs a basic
4179 response with various flags. New helper functions ASN1_TIME_check()
4180 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4181 (converts ASN1_TIME to GeneralizedTime).
4184 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4185 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4186 structure from a certificate. X509_pubkey_digest() digests the public_key
4187 contents: this is used in various key identifiers.
4190 *) Make sk_sort() tolerate a NULL argument.
4191 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4193 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4194 passed by the function are trusted implicitly. If any of them signed the
4195 response then it is assumed to be valid and is not verified.
4198 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4199 to data. This was previously part of the PKCS7 ASN1 code. This
4200 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4201 [Steve Henson, reported by Kenneth R. Robinette
4202 <support@securenetterm.com>]
4204 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4205 routines: without these tracing memory leaks is very painful.
4206 Fix leaks in PKCS12 and PKCS7 routines.
4209 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4210 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4211 effectively meant GeneralizedTime would never be used. Now it
4212 is initialised to -1 but X509_time_adj() now has to check the value
4213 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4214 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4215 [Steve Henson, reported by Kenneth R. Robinette
4216 <support@securenetterm.com>]
4218 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4219 result in a zero length in the ASN1_INTEGER structure which was
4220 not consistent with the structure when d2i_ASN1_INTEGER() was used
4221 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4222 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4223 where it did not print out a minus for negative ASN1_INTEGER.
4226 *) Add summary printout to ocsp utility. The various functions which
4227 convert status values to strings have been renamed to:
4228 OCSP_response_status_str(), OCSP_cert_status_str() and
4229 OCSP_crl_reason_str() and are no longer static. New options
4230 to verify nonce values and to disable verification. OCSP response
4231 printout format cleaned up.
4234 *) Add additional OCSP certificate checks. These are those specified
4235 in RFC2560. This consists of two separate checks: the CA of the
4236 certificate being checked must either be the OCSP signer certificate
4237 or the issuer of the OCSP signer certificate. In the latter case the
4238 OCSP signer certificate must contain the OCSP signing extended key
4239 usage. This check is performed by attempting to match the OCSP
4240 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4241 in the OCSP_CERTID structures of the response.
4244 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4245 and related routines. This uses the standard OpenSSL certificate
4246 verify routines to perform initial checks (just CA validity) and
4247 to obtain the certificate chain. Then additional checks will be
4248 performed on the chain. Currently the root CA is checked to see
4249 if it is explicitly trusted for OCSP signing. This is used to set
4250 a root CA as a global signing root: that is any certificate that
4251 chains to that CA is an acceptable OCSP signing certificate.
4254 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4255 extensions from a separate configuration file.
4256 As when reading extensions from the main configuration file,
4257 the '-extensions ...' option may be used for specifying the
4259 [Massimiliano Pala <madwolf@comune.modena.it>]
4261 *) New OCSP utility. Allows OCSP requests to be generated or
4262 read. The request can be sent to a responder and the output
4263 parsed, outputed or printed in text form. Not complete yet:
4264 still needs to check the OCSP response validity.
4267 *) New subcommands for 'openssl ca':
4268 'openssl ca -status <serial>' prints the status of the cert with
4269 the given serial number (according to the index file).
4270 'openssl ca -updatedb' updates the expiry status of certificates
4272 [Massimiliano Pala <madwolf@comune.modena.it>]
4274 *) New '-newreq-nodes' command option to CA.pl. This is like
4275 '-newreq', but calls 'openssl req' with the '-nodes' option
4276 so that the resulting key is not encrypted.
4277 [Damien Miller <djm@mindrot.org>]
4279 *) New configuration for the GNU Hurd.
4280 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4282 *) Initial code to implement OCSP basic response verify. This
4283 is currently incomplete. Currently just finds the signer's
4284 certificate and verifies the signature on the response.
4287 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4288 value of OPENSSLDIR. This is available via the new '-d' option
4289 to 'openssl version', and is also included in 'openssl version -a'.
4292 *) Allowing defining memory allocation callbacks that will be given
4293 file name and line number information in additional arguments
4294 (a const char* and an int). The basic functionality remains, as
4295 well as the original possibility to just replace malloc(),
4296 realloc() and free() by functions that do not know about these
4297 additional arguments. To register and find out the current
4298 settings for extended allocation functions, the following
4299 functions are provided:
4301 CRYPTO_set_mem_ex_functions
4302 CRYPTO_set_locked_mem_ex_functions
4303 CRYPTO_get_mem_ex_functions
4304 CRYPTO_get_locked_mem_ex_functions
4306 These work the same way as CRYPTO_set_mem_functions and friends.
4307 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4308 extended allocation function is enabled.
4309 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4310 a conventional allocation function is enabled.
4311 [Richard Levitte, Bodo Moeller]
4313 *) Finish off removing the remaining LHASH function pointer casts.
4314 There should no longer be any prototype-casting required when using
4315 the LHASH abstraction, and any casts that remain are "bugs". See
4316 the callback types and macros at the head of lhash.h for details
4317 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4320 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4321 If /dev/[u]random devices are not available or do not return enough
4322 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4324 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4325 /etc/entropy will be queried once each in this sequence, quering stops
4326 when enough entropy was collected without querying more sockets.
4329 *) Change the Unix RAND_poll() variant to be able to poll several
4330 random devices, as specified by DEVRANDOM, until a sufficient amount
4331 of data has been collected. We spend at most 10 ms on each file
4332 (select timeout) and read in non-blocking mode. DEVRANDOM now
4333 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4334 (previously it was just the string "/dev/urandom"), so on typical
4335 platforms the 10 ms delay will never occur.
4336 Also separate out the Unix variant to its own file, rand_unix.c.
4337 For VMS, there's a currently-empty rand_vms.c.
4340 *) Move OCSP client related routines to ocsp_cl.c. These
4341 provide utility functions which an application needing
4342 to issue a request to an OCSP responder and analyse the
4343 response will typically need: as opposed to those which an
4344 OCSP responder itself would need which will be added later.
4346 OCSP_request_sign() signs an OCSP request with an API similar
4347 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4348 response. OCSP_response_get1_basic() extracts basic response
4349 from response. OCSP_resp_find_status(): finds and extracts status
4350 information from an OCSP_CERTID structure (which will be created
4351 when the request structure is built). These are built from lower
4352 level functions which work on OCSP_SINGLERESP structures but
4353 wont normally be used unless the application wishes to examine
4354 extensions in the OCSP response for example.
4356 Replace nonce routines with a pair of functions.
4357 OCSP_request_add1_nonce() adds a nonce value and optionally
4358 generates a random value. OCSP_check_nonce() checks the
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