X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=1e13733070574ecfb12b500f1b1ab483accd07bf;hp=1cea4962c92ae932a2f5ba945d4e049d15b74960;hb=12bdb643756d829569bb903e5b806613ff975ccb;hpb=f80153e20b9db5f0e18db6a259f8bdb88ff79273 diff --git a/CHANGES b/CHANGES index 1cea4962c9..1e13733070 100644 --- a/CHANGES +++ b/CHANGES @@ -2,20 +2,331 @@ OpenSSL CHANGES _______________ - Changes between 0.9.7a and 0.9.8 [xx XXX xxxx] + Changes between 0.9.7f and 0.9.8 [xx XXX xxxx] + + *) Use SHA-1 instead of MD5 as the default digest algorithm for + the apps/openssl applications. + [Nils Larsch] + + *) Compile clean with "-Wall -Wmissing-prototypes + -Wstrict-prototypes -Wmissing-declarations -Werror". Currently + DEBUG_SAFESTACK must also be set. + [Ben Laurie] + + *) Change ./Configure so that certain algorithms can be disabled by default. + The new counterpiece to "no-xxx" is "enable-xxx". + + The patented RC5 and MDC2 algorithms will now be disabled unless + "enable-rc5" and "enable-mdc2", respectively, are specified. + + (IDEA remains enabled despite being patented. This is because IDEA + is frequently required for interoperability, and there is no license + fee for non-commercial use. As before, "no-idea" can be used to + avoid this algorithm.) + + [Bodo Moeller] + + *) Add processing of proxy certificates (see RFC 3820). This work was + sponsored by KTH (The Royal Institute of Technology in Stockholm) and + EGEE (Enabling Grids for E-science in Europe). + [Richard Levitte] + + *) RC4 performance overhaul on modern architectures/implementations, such + as Intel P4, IA-64 and AMD64. + [Andy Polyakov] + + *) New utility extract-section.pl. This can be used specify an alternative + section number in a pod file instead of having to treat each file as + a separate case in Makefile. This can be done by adding two lines to the + pod file: + + =for comment openssl_section:XXX + + The blank line is mandatory. - *) Support for policyConstraints certificate extension. [Steve Henson] - *) Support for policyMappings certificate extension. + *) New arguments -certform, -keyform and -pass for s_client and s_server + to allow alternative format key and certificate files and passphrase + sources. [Steve Henson] - *) Fixed a typo bug that would cause ENGINE_set_default() to set an - ENGINE as defaults for all supported algorithms irrespective of - the 'flags' parameter. 'flags' is now honoured, so applications - should make sure they are passing it correctly. + *) New structure X509_VERIFY_PARAM which combines current verify parameters, + update associated structures and add various utility functions. + + Add new policy related verify parameters, include policy checking in + standard verify code. Enhance 'smime' application with extra parameters + to support policy checking and print out. + [Steve Henson] + + *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 + Nehemiah processors. These extensions support AES encryption in hardware + as well as RNG (though RNG support is currently disabled). + [Michal Ludvig , with help from Andy Polyakov] + + *) Deprecate BN_[get|set]_params() functions (they were ignored internally). + [Geoff Thorpe] + + *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. + [Andy Polyakov and a number of other people] + + *) Improved PowerPC platform support. Most notably BIGNUM assembler + implementation contributed by IBM. + [Suresh Chari, Peter Waltenberg, Andy Polyakov] + + *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public + exponent rather than 'unsigned long'. There is a corresponding change to + the new 'rsa_keygen' element of the RSA_METHOD structure. + [Jelte Jansen, Geoff Thorpe] + + *) Functionality for creating the initial serial number file is now + moved from CA.pl to the 'ca' utility with a new option -create_serial. + + (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial + number file to 1, which is bound to cause problems. To avoid + the problems while respecting compatibility between different 0.9.7 + patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in + CA.pl for serial number initialization. With the new release 0.9.8, + we can fix the problem directly in the 'ca' utility.) + [Steve Henson] + + *) Reduced header interdepencies by declaring more opaque objects in + ossl_typ.h. As a consequence, including some headers (eg. engine.h) will + give fewer recursive includes, which could break lazy source code - so + this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, + developers should define this symbol when building and using openssl to + ensure they track the recommended behaviour, interfaces, [etc], but + backwards-compatible behaviour prevails when this isn't defined. + [Geoff Thorpe] + + *) New function X509_POLICY_NODE_print() which prints out policy nodes. + [Steve Henson] + + *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. + This will generate a random key of the appropriate length based on the + cipher context. The EVP_CIPHER can provide its own random key generation + routine to support keys of a specific form. This is used in the des and + 3des routines to generate a key of the correct parity. Update S/MIME + code to use new functions and hence generate correct parity DES keys. + Add EVP_CHECK_DES_KEY #define to return an error if the key is not + valid (weak or incorrect parity). + [Steve Henson] + + *) Add a local set of CRLs that can be used by X509_verify_cert() as well + as looking them up. This is useful when the verified structure may contain + CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs + present unless the new PKCS7_NO_CRL flag is asserted. + [Steve Henson] + + *) Extend ASN1 oid configuration module. It now additionally accepts the + syntax: + + shortName = some long name, 1.2.3.4 + [Steve Henson] + + *) Reimplemented the BN_CTX implementation. There is now no more static + limitation on the number of variables it can handle nor the depth of the + "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack + information can now expand as required, and rather than having a single + static array of bignums, BN_CTX now uses a linked-list of such arrays + allowing it to expand on demand whilst maintaining the usefulness of + BN_CTX's "bundling". + [Geoff Thorpe] + + *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD + to allow all RSA operations to function using a single BN_CTX. + [Geoff Thorpe] + + *) Preliminary support for certificate policy evaluation and checking. This + is initially intended to pass the tests outlined in "Conformance Testing + of Relying Party Client Certificate Path Processing Logic" v1.07. + [Steve Henson] + + *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and + remained unused and not that useful. A variety of other little bignum + tweaks and fixes have also been made continuing on from the audit (see + below). + [Geoff Thorpe] + + *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with + associated ASN1, EVP and SSL functions and old ASN1 macros. + [Richard Levitte] + + *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, + and this should never fail. So the return value from the use of + BN_set_word() (which can fail due to needless expansion) is now deprecated; + if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. + [Geoff Thorpe] + + *) BN_CTX_get() should return zero-valued bignums, providing the same + initialised value as BN_new(). + [Geoff Thorpe, suggested by Ulf Möller] + + *) Support for inhibitAnyPolicy certificate extension. + [Steve Henson] + + *) An audit of the BIGNUM code is underway, for which debugging code is + enabled when BN_DEBUG is defined. This makes stricter enforcements on what + is considered valid when processing BIGNUMs, and causes execution to + assert() when a problem is discovered. If BN_DEBUG_RAND is defined, + further steps are taken to deliberately pollute unused data in BIGNUM + structures to try and expose faulty code further on. For now, openssl will + (in its default mode of operation) continue to tolerate the inconsistent + forms that it has tolerated in the past, but authors and packagers should + consider trying openssl and their own applications when compiled with + these debugging symbols defined. It will help highlight potential bugs in + their own code, and will improve the test coverage for OpenSSL itself. At + some point, these tighter rules will become openssl's default to improve + maintainability, though the assert()s and other overheads will remain only + in debugging configurations. See bn.h for more details. + [Geoff Thorpe, Nils Larsch, Ulf Möller] + + *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure + that can only be obtained through BN_CTX_new() (which implicitly + initialises it). The presence of this function only made it possible + to overwrite an existing structure (and cause memory leaks). + [Geoff Thorpe] + + *) Because of the callback-based approach for implementing LHASH as a + template type, lh_insert() adds opaque objects to hash-tables and + lh_doall() or lh_doall_arg() are typically used with a destructor callback + to clean up those corresponding objects before destroying the hash table + (and losing the object pointers). So some over-zealous constifications in + LHASH have been relaxed so that lh_insert() does not take (nor store) the + objects as "const" and the lh_doall[_arg] callback wrappers are not + prototyped to have "const" restrictions on the object pointers they are + given (and so aren't required to cast them away any more). + [Geoff Thorpe] + + *) The tmdiff.h API was so ugly and minimal that our own timing utility + (speed) prefers to use its own implementation. The two implementations + haven't been consolidated as yet (volunteers?) but the tmdiff API has had + its object type properly exposed (MS_TM) instead of casting to/from "char + *". This may still change yet if someone realises MS_TM and "ms_time_***" + aren't necessarily the greatest nomenclatures - but this is what was used + internally to the implementation so I've used that for now. + [Geoff Thorpe] + + *) Ensure that deprecated functions do not get compiled when + OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of + the self-tests were still using deprecated key-generation functions so + these have been updated also. [Geoff Thorpe] + *) Reorganise PKCS#7 code to separate the digest location functionality + into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). + New function PKCS7_set_digest() to set the digest type for PKCS#7 + digestedData type. Add additional code to correctly generate the + digestedData type and add support for this type in PKCS7 initialization + functions. + [Steve Henson] + + *) New function PKCS7_set0_type_other() this initializes a PKCS7 + structure of type "other". + [Steve Henson] + + *) Fix prime generation loop in crypto/bn/bn_prime.pl by making + sure the loop does correctly stop and breaking ("division by zero") + modulus operations are not performed. The (pre-generated) prime + table crypto/bn/bn_prime.h was already correct, but it could not be + re-generated on some platforms because of the "division by zero" + situation in the script. + [Ralf S. Engelschall] + + *) Update support for ECC-based TLS ciphersuites according to + draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with + SHA-1 now is only used for "small" curves (where the + representation of a field element takes up to 24 bytes); for + larger curves, the field element resulting from ECDH is directly + used as premaster secret. + [Douglas Stebila (Sun Microsystems Laboratories)] + + *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 + curve secp160r1 to the tests. + [Douglas Stebila (Sun Microsystems Laboratories)] + + *) Add the possibility to load symbols globally with DSO. + [Götz Babin-Ebell via Richard Levitte] + + *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better + control of the error stack. + [Richard Levitte] + + *) Add support for STORE in ENGINE. + [Richard Levitte] + + *) Add the STORE type. The intention is to provide a common interface + to certificate and key stores, be they simple file-based stores, or + HSM-type store, or LDAP stores, or... + NOTE: The code is currently UNTESTED and isn't really used anywhere. + [Richard Levitte] + + *) Add a generic structure called OPENSSL_ITEM. This can be used to + pass a list of arguments to any function as well as provide a way + for a function to pass data back to the caller. + [Richard Levitte] + + *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() + works like BUF_strdup() but can be used to duplicate a portion of + a string. The copy gets NUL-terminated. BUF_memdup() duplicates + a memory area. + [Richard Levitte] + + *) Add the function sk_find_ex() which works like sk_find(), but will + return an index to an element even if an exact match couldn't be + found. The index is guaranteed to point at the element where the + searched-for key would be inserted to preserve sorting order. + [Richard Levitte] + + *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but + takes an extra flags argument for optional functionality. Currently, + the following flags are defined: + + OBJ_BSEARCH_VALUE_ON_NOMATCH + This one gets OBJ_bsearch_ex() to return a pointer to the first + element where the comparing function returns a negative or zero + number. + + OBJ_BSEARCH_FIRST_VALUE_ON_MATCH + This one gets OBJ_bsearch_ex() to return a pointer to the first + element where the comparing function returns zero. This is useful + if there are more than one element where the comparing function + returns zero. + [Richard Levitte] + + *) Make it possible to create self-signed certificates with 'openssl ca' + in such a way that the self-signed certificate becomes part of the + CA database and uses the same mechanisms for serial number generation + as all other certificate signing. The new flag '-selfsign' enables + this functionality. Adapt CA.sh and CA.pl.in. + [Richard Levitte] + + *) Add functionality to check the public key of a certificate request + against a given private. This is useful to check that a certificate + request can be signed by that key (self-signing). + [Richard Levitte] + + *) Make it possible to have multiple active certificates with the same + subject in the CA index file. This is done only if the keyword + 'unique_subject' is set to 'no' in the main CA section (default + if 'CA_default') of the configuration file. The value is saved + with the database itself in a separate index attribute file, + named like the index file with '.attr' appended to the name. + [Richard Levitte] + + *) Generate muti valued AVAs using '+' notation in config files for + req and dirName. + [Steve Henson] + + *) Support for nameConstraints certificate extension. + [Steve Henson] + + *) Support for policyConstraints certificate extension. + [Steve Henson] + + *) Support for policyMappings certificate extension. + [Steve Henson] + *) Make sure the default DSA_METHOD implementation only uses its dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, and change its own handlers to be NULL so as to remove unnecessary @@ -31,11 +342,6 @@ Make that possible even when linking against static libraries! [Richard Levitte] - *) Various fixes to base64 BIO and non blocking I/O. On write - flushes were not handled properly if the BIO retried. On read - data was not being buffered properly and had various logic bugs. - [Steve Henson] - *) Support for single pass processing for S/MIME signing. This now means that S/MIME signing can be done from a pipe, in addition cleartext signing (multipart/signed type) is effectively streaming @@ -464,7 +770,195 @@ differing sizes. [Richard Levitte] - Changes between 0.9.7a and 0.9.7b [xx XXX 2003] + Changes between 0.9.7f and 0.9.7g [XX xxx xxxx] + + *) Undo Cygwin change. + [Ulf Möller] + + Changes between 0.9.7e and 0.9.7f [22 Mar 2005] + + *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating + server and client random values. Previously + (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in + less random data when sizeof(time_t) > 4 (some 64 bit platforms). + + This change has negligible security impact because: + + 1. Server and client random values still have 24 bytes of pseudo random + data. + + 2. Server and client random values are sent in the clear in the initial + handshake. + + 3. The master secret is derived using the premaster secret (48 bytes in + size for static RSA ciphersuites) as well as client server and random + values. + + The OpenSSL team would like to thank the UK NISCC for bringing this issue + to our attention. + + [Stephen Henson, reported by UK NISCC] + + *) Use Windows randomness collection on Cygwin. + [Ulf Möller] + + *) Fix hang in EGD/PRNGD query when communication socket is closed + prematurely by EGD/PRNGD. + [Darren Tucker via Lutz Jänicke, resolves #1014] + + *) Prompt for pass phrases when appropriate for PKCS12 input format. + [Steve Henson] + + *) Back-port of selected performance improvements from development + branch, as well as improved support for PowerPC platforms. + [Andy Polyakov] + + *) Add lots of checks for memory allocation failure, error codes to indicate + failure and freeing up memory if a failure occurs. + [Nauticus Networks SSL Team , Steve Henson] + + *) Add new -passin argument to dgst. + [Steve Henson] + + *) Perform some character comparisons of different types in X509_NAME_cmp: + this is needed for some certificates that reencode DNs into UTF8Strings + (in violation of RFC3280) and can't or wont issue name rollover + certificates. + [Steve Henson] + + *) Make an explicit check during certificate validation to see that + the CA setting in each certificate on the chain is correct. As a + side effect always do the following basic checks on extensions, + not just when there's an associated purpose to the check: + + - if there is an unhandled critical extension (unless the user + has chosen to ignore this fault) + - if the path length has been exceeded (if one is set at all) + - that certain extensions fit the associated purpose (if one has + been given) + [Richard Levitte] + + Changes between 0.9.7d and 0.9.7e [25 Oct 2004] + + *) Avoid a race condition when CRLs are checked in a multi threaded + environment. This would happen due to the reordering of the revoked + entries during signature checking and serial number lookup. Now the + encoding is cached and the serial number sort performed under a lock. + Add new STACK function sk_is_sorted(). + [Steve Henson] + + *) Add Delta CRL to the extension code. + [Steve Henson] + + *) Various fixes to s3_pkt.c so alerts are sent properly. + [David Holmes ] + + *) Reduce the chances of duplicate issuer name and serial numbers (in + violation of RFC3280) using the OpenSSL certificate creation utilities. + This is done by creating a random 64 bit value for the initial serial + number when a serial number file is created or when a self signed + certificate is created using 'openssl req -x509'. The initial serial + number file is created using 'openssl x509 -next_serial' in CA.pl + rather than being initialized to 1. + [Steve Henson] + + Changes between 0.9.7c and 0.9.7d [17 Mar 2004] + + *) Fix null-pointer assignment in do_change_cipher_spec() revealed + by using the Codenomicon TLS Test Tool (CAN-2004-0079) + [Joe Orton, Steve Henson] + + *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites + (CAN-2004-0112) + [Joe Orton, Steve Henson] + + *) Make it possible to have multiple active certificates with the same + subject in the CA index file. This is done only if the keyword + 'unique_subject' is set to 'no' in the main CA section (default + if 'CA_default') of the configuration file. The value is saved + with the database itself in a separate index attribute file, + named like the index file with '.attr' appended to the name. + [Richard Levitte] + + *) X509 verify fixes. Disable broken certificate workarounds when + X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if + keyUsage extension present. Don't accept CRLs with unhandled critical + extensions: since verify currently doesn't process CRL extensions this + rejects a CRL with *any* critical extensions. Add new verify error codes + for these cases. + [Steve Henson] + + *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. + A clarification of RFC2560 will require the use of OCTET STRINGs and + some implementations cannot handle the current raw format. Since OpenSSL + copies and compares OCSP nonces as opaque blobs without any attempt at + parsing them this should not create any compatibility issues. + [Steve Henson] + + *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when + calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without + this HMAC (and other) operations are several times slower than OpenSSL + < 0.9.7. + [Steve Henson] + + *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). + [Peter Sylvester ] + + *) Use the correct content when signing type "other". + [Steve Henson] + + Changes between 0.9.7b and 0.9.7c [30 Sep 2003] + + *) Fix various bugs revealed by running the NISCC test suite: + + Stop out of bounds reads in the ASN1 code when presented with + invalid tags (CAN-2003-0543 and CAN-2003-0544). + + Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545). + + If verify callback ignores invalid public key errors don't try to check + certificate signature with the NULL public key. + + [Steve Henson] + + *) New -ignore_err option in ocsp application to stop the server + exiting on the first error in a request. + [Steve Henson] + + *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate + if the server requested one: as stated in TLS 1.0 and SSL 3.0 + specifications. + [Steve Henson] + + *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional + extra data after the compression methods not only for TLS 1.0 + but also for SSL 3.0 (as required by the specification). + [Bodo Moeller; problem pointed out by Matthias Loepfe] + + *) Change X509_certificate_type() to mark the key as exported/exportable + when it's 512 *bits* long, not 512 bytes. + [Richard Levitte] + + *) Change AES_cbc_encrypt() so it outputs exact multiple of + blocks during encryption. + [Richard Levitte] + + *) Various fixes to base64 BIO and non blocking I/O. On write + flushes were not handled properly if the BIO retried. On read + data was not being buffered properly and had various logic bugs. + This also affects blocking I/O when the data being decoded is a + certain size. + [Steve Henson] + + *) Various S/MIME bugfixes and compatibility changes: + output correct application/pkcs7 MIME type if + PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. + Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening + of files as .eml work). Correctly handle very long lines in MIME + parser. + [Steve Henson] + + Changes between 0.9.7a and 0.9.7b [10 Apr 2003] *) Countermeasure against the Klima-Pokorny-Rosa extension of Bleichbacher's attack on PKCS #1 v1.5 padding: treat @@ -476,16 +970,24 @@ to avoid a timing attack. Applications that don't want it can call RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. They would be ill-advised to do so in most cases. - [Ben Laurie, Steve Henson, Geoff Thorpe] + [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] *) Change RSA blinding code so that it works when the PRNG is not seeded (in this case, the secret RSA exponent is abused as an unpredictable seed -- if it is not unpredictable, there - is no point in blinding anyway). + is no point in blinding anyway). Make RSA blinding thread-safe + by remembering the creator's thread ID in rsa->blinding and + having all other threads use local one-time blinding factors + (this requires more computation than sharing rsa->blinding, but + avoids excessive locking; and if an RSA object is not shared + between threads, blinding will still be very fast). [Bodo Moeller] -yet to be integrated into this CVS branch: -- Geoff's ENGINE_set_default() fix + *) Fixed a typo bug that would cause ENGINE_set_default() to set an + ENGINE as defaults for all supported algorithms irrespective of + the 'flags' parameter. 'flags' is now honoured, so applications + should make sure they are passing it correctly. + [Geoff Thorpe] *) Target "mingw" now allows native Windows code to be generated in the Cygwin environment as well as with the MinGW compiler. @@ -574,6 +1076,9 @@ yet to be integrated into this CVS branch: Changes between 0.9.6h and 0.9.7 [31 Dec 2002] + [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after + OpenSSL 0.9.7.] + *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED code (06) was taken as the first octet of the session ID and the last octet was ignored consequently. As a result SSLv2 client side session @@ -2392,6 +2897,71 @@ des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k *) Clean old EAY MD5 hack from e_os.h. [Richard Levitte] + Changes between 0.9.6l and 0.9.6m [17 Mar 2004] + + *) Fix null-pointer assignment in do_change_cipher_spec() revealed + by using the Codenomicon TLS Test Tool (CAN-2004-0079) + [Joe Orton, Steve Henson] + + Changes between 0.9.6k and 0.9.6l [04 Nov 2003] + + *) Fix additional bug revealed by the NISCC test suite: + + Stop bug triggering large recursion when presented with + certain ASN.1 tags (CAN-2003-0851) + [Steve Henson] + + Changes between 0.9.6j and 0.9.6k [30 Sep 2003] + + *) Fix various bugs revealed by running the NISCC test suite: + + Stop out of bounds reads in the ASN1 code when presented with + invalid tags (CAN-2003-0543 and CAN-2003-0544). + + If verify callback ignores invalid public key errors don't try to check + certificate signature with the NULL public key. + + [Steve Henson] + + *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate + if the server requested one: as stated in TLS 1.0 and SSL 3.0 + specifications. + [Steve Henson] + + *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional + extra data after the compression methods not only for TLS 1.0 + but also for SSL 3.0 (as required by the specification). + [Bodo Moeller; problem pointed out by Matthias Loepfe] + + *) Change X509_certificate_type() to mark the key as exported/exportable + when it's 512 *bits* long, not 512 bytes. + [Richard Levitte] + + Changes between 0.9.6i and 0.9.6j [10 Apr 2003] + + *) Countermeasure against the Klima-Pokorny-Rosa extension of + Bleichbacher's attack on PKCS #1 v1.5 padding: treat + a protocol version number mismatch like a decryption error + in ssl3_get_client_key_exchange (ssl/s3_srvr.c). + [Bodo Moeller] + + *) Turn on RSA blinding by default in the default implementation + to avoid a timing attack. Applications that don't want it can call + RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. + They would be ill-advised to do so in most cases. + [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] + + *) Change RSA blinding code so that it works when the PRNG is not + seeded (in this case, the secret RSA exponent is abused as + an unpredictable seed -- if it is not unpredictable, there + is no point in blinding anyway). Make RSA blinding thread-safe + by remembering the creator's thread ID in rsa->blinding and + having all other threads use local one-time blinding factors + (this requires more computation than sharing rsa->blinding, but + avoids excessive locking; and if an RSA object is not shared + between threads, blinding will still be very fast). + [Bodo Moeller] + Changes between 0.9.6h and 0.9.6i [19 Feb 2003] *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked