OpenSSL CHANGES
_______________
- Changes between 0.9.7 and 0.9.8 [xx XXX 2002]
+ Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
- *) Add version info to Win32 DLLs.
- [Peter 'Luna' Runestig" <peter@runestig.com>]
+ *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
+ EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
+ signing method from the key type. This effectively removes the link
+ between digests and public key types.
+ [Steve Henson]
- *) Add new 'medium level' PKCS#12 API. Certificates and keys
- can be added using this API to created arbitrary PKCS#12
- files while avoiding the low level API.
+ *) Add an OID cross reference table and utility functions. Its purpose is to
+ translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
+ rsaEncryption. This will allow some of the algorithm specific hackery
+ needed to use the correct OID to be removed.
+ [Steve Henson]
- New options to PKCS12_create(), key or cert can be NULL and
- will then be omitted from the output file. The encryption
- algorithm NIDs can be set to -1 for no encryption, the mac
- iteration count can be set to 0 to omit the mac.
+ *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
+ structures for PKCS7_sign(). They are now set up by the relevant public
+ key ASN1 method.
+ [Steve Henson]
- Enhance pkcs12 utility by making the -nokeys and -nocerts
- options work when creating a PKCS#12 file. New option -nomac
- to omit the mac, NONE can be set for an encryption algorithm.
- New code is modified to use the enhanced PKCS12_create()
- instead of the low level API.
+ *) Add provisional EC pkey method with support for ECDSA and ECDH.
[Steve Henson]
- *) Extend ASN1 encoder to support indefinite length constructed
- encoding. This can output sequences tags and octet strings in
- this form. Modify pk7_asn1.c to support indefinite length
- encoding. This is experimental and needs additional code to
- be useful, such as an ASN1 bio and some enhanced streaming
- PKCS#7 code.
+ *) Add support for key derivation (agreement) in the API, DH method and
+ pkeyutl.
+ [Steve Henson]
- Extend template encode functionality so that tagging is passed
- down to the template encoder.
+ *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
+ public and private key formats. As a side effect these add additional
+ command line functionality not previously available: DSA signatures can be
+ generated and verified using pkeyutl and DH key support and generation in
+ pkey, genpkey.
[Steve Henson]
- *) Let 'openssl req' fail if an argument to '-newkey' is not
- recognized instead of using RSA as a default.
+ *) BeOS support.
+ [Oliver Tappe <zooey@hirschkaefer.de>]
+
+ *) New make target "install_html_docs" installs HTML renditions of the
+ manual pages.
+ [Oliver Tappe <zooey@hirschkaefer.de>]
+
+ *) New utility "genpkey" this is analagous to "genrsa" etc except it can
+ generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
+ support key and parameter generation and add initial key generation
+ functionality for RSA.
+ [Steve Henson]
+
+ *) Add functions for main EVP_PKEY_method operations. The undocumented
+ functions EVP_PKEY_{encrypt,decrypt} have been renamed to
+ EVP_PKEY_{encrypt,decrypt}_old.
+ [Steve Henson]
+
+ *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
+ key API, doesn't do much yet.
+ [Steve Henson]
+
+ *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
+ public key algorithms. New option to openssl utility:
+ "list-public-key-algorithms" to print out info.
+ [Steve Henson]
+
+ *) Implement the Supported Elliptic Curves Extension for
+ ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
+ [Douglas Stebila]
+
+ *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
+ EVP_CIPHER structures to avoid later problems in EVP_cleanup().
+ [Steve Henson]
+
+ *) New utilities pkey and pkeyparam. These are similar to algorithm specific
+ utilities such as rsa, dsa, dsaparam etc except they process any key
+ type.
+ [Steve Henson]
+
+ *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
+ functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
+ EVP_PKEY_print_param() to print public key data from an EVP_PKEY
+ structure.
+ [Steve Henson]
+
+ *) Initial support for pluggable public key ASN1.
+ De-spaghettify the public key ASN1 handling. Move public and private
+ key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
+ algorithm specific handling to a single module within the relevant
+ algorithm directory. Add functions to allow (near) opaque processing
+ of public and private key structures.
+ [Steve Henson]
+
+ *) Implement the Supported Point Formats Extension for
+ ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
+ [Douglas Stebila]
+
+ *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
+ for the psk identity [hint] and the psk callback functions to the
+ SSL_SESSION, SSL and SSL_CTX structure.
+
+ New ciphersuites:
+ PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
+ PSK-AES256-CBC-SHA
+
+ New functions:
+ SSL_CTX_use_psk_identity_hint
+ SSL_get_psk_identity_hint
+ SSL_get_psk_identity
+ SSL_use_psk_identity_hint
+
+ [Mika Kousa and Pasi Eronen of Nokia Corporation]
+
+ *) Add RFC 3161 compliant time stamp request creation, response generation
+ and response verification functionality.
+ [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
+
+ *) Add initial support for TLS extensions, specifically for the server_name
+ extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
+ have new members for a host name. The SSL data structure has an
+ additional member SSL_CTX *initial_ctx so that new sessions can be
+ stored in that context to allow for session resumption, even after the
+ SSL has been switched to a new SSL_CTX in reaction to a client's
+ server_name extension.
+
+ New functions (subject to change):
+
+ SSL_get_servername()
+ SSL_get_servername_type()
+ SSL_set_SSL_CTX()
+
+ New CTRL codes and macros (subject to change):
+
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
+ - SSL_CTX_set_tlsext_servername_callback()
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
+ - SSL_CTX_set_tlsext_servername_arg()
+ SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
+
+ openssl s_client has a new '-servername ...' option.
+
+ openssl s_server has new options '-servername_host ...', '-cert2 ...',
+ '-key2 ...', '-servername_fatal' (subject to change). This allows
+ testing the HostName extension for a specific single host name ('-cert'
+ and '-key' remain fallbacks for handshakes without HostName
+ negotiation). If the unrecogninzed_name alert has to be sent, this by
+ default is a warning; it becomes fatal with the '-servername_fatal'
+ option.
+
+ [Peter Sylvester, Remy Allais, Christophe Renou]
+
+ *) Whirlpool hash implementation is added.
+ [Andy Polyakov]
+
+ *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
+ bn(64,32). Because of instruction set limitations it doesn't have
+ any negative impact on performance. This was done mostly in order
+ to make it possible to share assembler modules, such as bn_mul_mont
+ implementations, between 32- and 64-bit builds without hassle.
+ [Andy Polyakov]
+
+ *) Disable rogue ciphersuites:
+
+ - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
+ - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
+ - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
+
+ The latter two were purportedly from
+ draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
+ appear there.
+
+ Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
+ remain enabled for now, but are just as unofficial, and the ID
+ has long expired; these will probably disappear soon.
[Bodo Moeller]
- *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
- As these are not official, they are not included in "ALL";
- the "ECCdraft" ciphersuite group alias can be used to select them.
- [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
+ *) Move code previously exiled into file crypto/ec/ec2_smpt.c
+ to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
+ macro.
+ [Bodo Moeller]
- *) Add ECDH engine support.
- [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
+ *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
+ dedicated Montgomery multiplication procedure, is introduced.
+ BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
+ "64-bit" performance on certain 32-bit targets.
+ [Andy Polyakov]
- *) Add ECDH in new directory crypto/ecdh/.
-TODO: more general interface (return x coordinate, not its hash)
-TODO: bug: pad x with leading zeros if necessary
- [Douglas Stebila (Sun Microsystems Laboratories)]
+ *) New option SSL_OP_NO_COMP to disable use of compression selectively
+ in SSL structures. New SSL ctrl to set maximum send fragment size.
+ Save memory by seeting the I/O buffer sizes dynamically instead of
+ using the maximum available value.
+ [Steve Henson]
- *) Let BN_rand_range() abort with an error after 100 iterations
- without success (which indicates a broken PRNG).
+ *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
+ in addition to the text details.
[Bodo Moeller]
- *) Change BN_mod_sqrt() so that it verifies that the input value
- is really the square of the return value. (Previously,
- BN_mod_sqrt would show GIGO behaviour.)
+ *) Very, very preliminary EXPERIMENTAL support for printing of general
+ ASN1 structures. This currently produces rather ugly output and doesn't
+ handle several customised structures at all.
+ [Steve Henson]
+
+ *) Integrated support for PVK file format and some related formats such
+ as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
+ these in the 'rsa' and 'dsa' utilities.
+ [Steve Henson]
+
+ *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
+ [Steve Henson]
+
+ *) Remove the ancient ASN1_METHOD code. This was only ever used in one
+ place for the (very old) "NETSCAPE" format certificates which are now
+ handled using new ASN1 code equivalents.
+ [Steve Henson]
+
+ *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
+ pointer and make the SSL_METHOD parameter in SSL_CTX_new,
+ SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
+ [Nils Larsch]
+
+ *) Modify CRL distribution points extension code to print out previously
+ unsupported fields. Enhance extension setting code to allow setting of
+ all fields.
+ [Steve Henson]
+
+ *) Add print and set support for Issuing Distribution Point CRL extension.
+ [Steve Henson]
+
+ Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
+
+ *) When applying a cipher rule check to see if string match is an explicit
+ cipher suite and only match that one cipher suite if it is.
+ [Steve Henson]
+
+ *) Link in manifests for VC++ if needed.
+ [Austin Ziegler <halostatue@gmail.com>]
+
+ *) Update support for ECC-based TLS ciphersuites according to
+ draft-ietf-tls-ecc-12.txt with proposed changes (but without
+ TLS extensions, which are supported starting with the 0.9.9
+ branch, not in the OpenSSL 0.9.8 branch).
+ [Douglas Stebila]
+
+ *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
+ opaque EVP_CIPHER_CTX handling.
+ [Steve Henson]
+
+ *) Fixes and enhancements to zlib compression code. We now only use
+ "zlib1.dll" and use the default __cdecl calling convention on Win32
+ to conform with the standards mentioned here:
+ http://www.zlib.net/DLL_FAQ.txt
+ Static zlib linking now works on Windows and the new --with-zlib-include
+ --with-zlib-lib options to Configure can be used to supply the location
+ of the headers and library. Gracefully handle case where zlib library
+ can't be loaded.
+ [Steve Henson]
+
+ *) Several fixes and enhancements to the OID generation code. The old code
+ sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
+ handle numbers larger than ULONG_MAX, truncated printing and had a
+ non standard OBJ_obj2txt() behaviour.
+ [Steve Henson]
+
+ *) Add support for building of engines under engine/ as shared libraries
+ under VC++ build system.
+ [Steve Henson]
+
+ *) Corrected the numerous bugs in the Win32 path splitter in DSO.
+ Hopefully, we will not see any false combination of paths any more.
+ [Richard Levitte]
+
+ Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
+
+ *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
+ (part of SSL_OP_ALL). This option used to disable the
+ countermeasure against man-in-the-middle protocol-version
+ rollback in the SSL 2.0 server implementation, which is a bad
+ idea. (CVE-2005-2969)
+
+ [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
+ for Information Security, National Institute of Advanced Industrial
+ Science and Technology [AIST], Japan)]
+
+ *) Add two function to clear and return the verify parameter flags.
+ [Steve Henson]
+
+ *) Keep cipherlists sorted in the source instead of sorting them at
+ runtime, thus removing the need for a lock.
+ [Nils Larsch]
+
+ *) Avoid some small subgroup attacks in Diffie-Hellman.
+ [Nick Mathewson and Ben Laurie]
+
+ *) Add functions for well-known primes.
+ [Nick Mathewson]
+
+ *) Extended Windows CE support.
+ [Satoshi Nakamura and Andy Polyakov]
+
+ *) Initialize SSL_METHOD structures at compile time instead of during
+ runtime, thus removing the need for a lock.
+ [Steve Henson]
+
+ *) Make PKCS7_decrypt() work even if no certificate is supplied by
+ attempting to decrypt each encrypted key in turn. Add support to
+ smime utility.
+ [Steve Henson]
+
+ Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
+
+ *) Add libcrypto.pc and libssl.pc for those who feel they need them.
+ [Richard Levitte]
+
+ *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
+ key into the same file any more.
+ [Richard Levitte]
+
+ *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
+ [Andy Polyakov]
+
+ *) Add -utf8 command line and config file option to 'ca'.
+ [Stefan <stf@udoma.org]
+
+ *) Removed the macro des_crypt(), as it seems to conflict with some
+ libraries. Use DES_crypt().
+ [Richard Levitte]
+
+ *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
+ involves renaming the source and generated shared-libs for
+ both. The engines will accept the corrected or legacy ids
+ ('ncipher' and '4758_cca' respectively) when binding. NB,
+ this only applies when building 'shared'.
+ [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
+
+ *) Add attribute functions to EVP_PKEY structure. Modify
+ PKCS12_create() to recognize a CSP name attribute and
+ use it. Make -CSP option work again in pkcs12 utility.
+ [Steve Henson]
+
+ *) Add new functionality to the bn blinding code:
+ - automatic re-creation of the BN_BLINDING parameters after
+ a fixed number of uses (currently 32)
+ - add new function for parameter creation
+ - introduce flags to control the update behaviour of the
+ BN_BLINDING parameters
+ - hide BN_BLINDING structure
+ Add a second BN_BLINDING slot to the RSA structure to improve
+ performance when a single RSA object is shared among several
+ threads.
+ [Nils Larsch]
+
+ *) Add support for DTLS.
+ [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
+
+ *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
+ to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
+ [Walter Goulet]
+
+ *) Remove buggy and incompletet DH cert support from
+ ssl/ssl_rsa.c and ssl/s3_both.c
+ [Nils Larsch]
+
+ *) 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 named elliptic curves over binary fields from X9.62, SECG,
- and WAP/WTLS; add OIDs that were still missing.
+ *) 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]
- [Sheueling Chang Shantz and Douglas Stebila
- (Sun Microsystems Laboratories)]
+ *) RC4 performance overhaul on modern architectures/implementations, such
+ as Intel P4, IA-64 and AMD64.
+ [Andy Polyakov]
- *) Extend the EC library for elliptic curves over binary fields
- (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
- New EC_METHOD:
+ *) 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.
+
+ [Steve Henson]
+
+ *) 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]
+
+ *) 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 <michal@logix.cz>, 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 <babin-ebell@trustcenter.de> 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
+ indirection. This lets alternative implementations fallback to the
+ default implementation more easily.
+ [Geoff Thorpe]
+
+ *) Support for directoryName in GeneralName related extensions
+ in config files.
+ [Steve Henson]
+
+ *) Make it possible to link applications using Makefile.shared.
+ Make that possible even when linking against static libraries!
+ [Richard Levitte]
+
+ *) 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
+ and the signed data does not need to be all held in memory.
+
+ This is done with a new flag PKCS7_STREAM. When this flag is set
+ PKCS7_sign() only initializes the PKCS7 structure and the actual signing
+ is done after the data is output (and digests calculated) in
+ SMIME_write_PKCS7().
+ [Steve Henson]
+
+ *) Add full support for -rpath/-R, both in shared libraries and
+ applications, at least on the platforms where it's known how
+ to do it.
+ [Richard Levitte]
+
+ *) In crypto/ec/ec_mult.c, implement fast point multiplication with
+ precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
+ will now compute a table of multiples of the generator that
+ makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
+ faster (notably in the case of a single point multiplication,
+ scalar * generator).
+ [Nils Larsch, Bodo Moeller]
+
+ *) IPv6 support for certificate extensions. The various extensions
+ which use the IP:a.b.c.d can now take IPv6 addresses using the
+ formats of RFC1884 2.2 . IPv6 addresses are now also displayed
+ correctly.
+ [Steve Henson]
+
+ *) Added an ENGINE that implements RSA by performing private key
+ exponentiations with the GMP library. The conversions to and from
+ GMP's mpz_t format aren't optimised nor are any montgomery forms
+ cached, and on x86 it appears OpenSSL's own performance has caught up.
+ However there are likely to be other architectures where GMP could
+ provide a boost. This ENGINE is not built in by default, but it can be
+ specified at Configure time and should be accompanied by the necessary
+ linker additions, eg;
+ ./config -DOPENSSL_USE_GMP -lgmp
+ [Geoff Thorpe]
+
+ *) "openssl engine" will not display ENGINE/DSO load failure errors when
+ testing availability of engines with "-t" - the old behaviour is
+ produced by increasing the feature's verbosity with "-tt".
+ [Geoff Thorpe]
+
+ *) ECDSA routines: under certain error conditions uninitialized BN objects
+ could be freed. Solution: make sure initialization is performed early
+ enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
+ via PR#459)
+ [Lutz Jaenicke]
+
+ *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
+ and DH_METHOD (eg. by ENGINE implementations) to override the normal
+ software implementations. For DSA and DH, parameter generation can
+ also be overriden by providing the appropriate method callbacks.
+ [Geoff Thorpe]
+
+ *) Change the "progress" mechanism used in key-generation and
+ primality testing to functions that take a new BN_GENCB pointer in
+ place of callback/argument pairs. The new API functions have "_ex"
+ postfixes and the older functions are reimplemented as wrappers for
+ the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
+ declarations of the old functions to help (graceful) attempts to
+ migrate to the new functions. Also, the new key-generation API
+ functions operate on a caller-supplied key-structure and return
+ success/failure rather than returning a key or NULL - this is to
+ help make "keygen" another member function of RSA_METHOD etc.
+
+ Example for using the new callback interface:
+
+ int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
+ void *my_arg = ...;
+ BN_GENCB my_cb;
+
+ BN_GENCB_set(&my_cb, my_callback, my_arg);
+
+ return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
+ /* For the meaning of a, b in calls to my_callback(), see the
+ * documentation of the function that calls the callback.
+ * cb will point to my_cb; my_arg can be retrieved as cb->arg.
+ * my_callback should return 1 if it wants BN_is_prime_ex()
+ * to continue, or 0 to stop.
+ */
+
+ [Geoff Thorpe]
+
+ *) Change the ZLIB compression method to be stateful, and make it
+ available to TLS with the number defined in
+ draft-ietf-tls-compression-04.txt.
+ [Richard Levitte]
+
+ *) Add the ASN.1 structures and functions for CertificatePair, which
+ is defined as follows (according to X.509_4thEditionDraftV6.pdf):
+
+ CertificatePair ::= SEQUENCE {
+ forward [0] Certificate OPTIONAL,
+ reverse [1] Certificate OPTIONAL,
+ -- at least one of the pair shall be present -- }
+
+ Also implement the PEM functions to read and write certificate
+ pairs, and defined the PEM tag as "CERTIFICATE PAIR".
+
+ This needed to be defined, mostly for the sake of the LDAP
+ attribute crossCertificatePair, but may prove useful elsewhere as
+ well.
+ [Richard Levitte]
+
+ *) Make it possible to inhibit symlinking of shared libraries in
+ Makefile.shared, for Cygwin's sake.
+ [Richard Levitte]
+
+ *) Extend the BIGNUM API by creating a function
+ void BN_set_negative(BIGNUM *a, int neg);
+ and a macro that behave like
+ int BN_is_negative(const BIGNUM *a);
+
+ to avoid the need to access 'a->neg' directly in applications.
+ [Nils Larsch]
+
+ *) Implement fast modular reduction for pseudo-Mersenne primes
+ used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
+ EC_GROUP_new_curve_GFp() will now automatically use this
+ if applicable.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add new lock type (CRYPTO_LOCK_BN).
+ [Bodo Moeller]
+
+ *) Change the ENGINE framework to automatically load engines
+ dynamically from specific directories unless they could be
+ found to already be built in or loaded. Move all the
+ current engines except for the cryptodev one to a new
+ directory engines/.
+ The engines in engines/ are built as shared libraries if
+ the "shared" options was given to ./Configure or ./config.
+ Otherwise, they are inserted in libcrypto.a.
+ /usr/local/ssl/engines is the default directory for dynamic
+ engines, but that can be overriden at configure time through
+ the usual use of --prefix and/or --openssldir, and at run
+ time with the environment variable OPENSSL_ENGINES.
+ [Geoff Thorpe and Richard Levitte]
+
+ *) Add Makefile.shared, a helper makefile to build shared
+ libraries. Addapt Makefile.org.
+ [Richard Levitte]
+
+ *) Add version info to Win32 DLLs.
+ [Peter 'Luna' Runestig" <peter@runestig.com>]
+
+ *) Add new 'medium level' PKCS#12 API. Certificates and keys
+ can be added using this API to created arbitrary PKCS#12
+ files while avoiding the low level API.
+
+ New options to PKCS12_create(), key or cert can be NULL and
+ will then be omitted from the output file. The encryption
+ algorithm NIDs can be set to -1 for no encryption, the mac
+ iteration count can be set to 0 to omit the mac.
+
+ Enhance pkcs12 utility by making the -nokeys and -nocerts
+ options work when creating a PKCS#12 file. New option -nomac
+ to omit the mac, NONE can be set for an encryption algorithm.
+ New code is modified to use the enhanced PKCS12_create()
+ instead of the low level API.
+ [Steve Henson]
+
+ *) Extend ASN1 encoder to support indefinite length constructed
+ encoding. This can output sequences tags and octet strings in
+ this form. Modify pk7_asn1.c to support indefinite length
+ encoding. This is experimental and needs additional code to
+ be useful, such as an ASN1 bio and some enhanced streaming
+ PKCS#7 code.
+
+ Extend template encode functionality so that tagging is passed
+ down to the template encoder.
+ [Steve Henson]
+
+ *) Let 'openssl req' fail if an argument to '-newkey' is not
+ recognized instead of using RSA as a default.
+ [Bodo Moeller]
+
+ *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
+ As these are not official, they are not included in "ALL";
+ the "ECCdraft" ciphersuite group alias can be used to select them.
+ [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
+
+ *) Add ECDH engine support.
+ [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
+
+ *) Add ECDH in new directory crypto/ecdh/.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
+
+ *) Let BN_rand_range() abort with an error after 100 iterations
+ without success (which indicates a broken PRNG).
+ [Bodo Moeller]
+
+ *) Change BN_mod_sqrt() so that it verifies that the input value
+ is really the square of the return value. (Previously,
+ BN_mod_sqrt would show GIGO behaviour.)
+ [Bodo Moeller]
+
+ *) Add named elliptic curves over binary fields from X9.62, SECG,
+ and WAP/WTLS; add OIDs that were still missing.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Extend the EC library for elliptic curves over binary fields
+ (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
+ New EC_METHOD:
+
+ EC_GF2m_simple_method
+
+ New API functions:
+
+ EC_GROUP_new_curve_GF2m
+ EC_GROUP_set_curve_GF2m
+ EC_GROUP_get_curve_GF2m
+ EC_POINT_set_affine_coordinates_GF2m
+ EC_POINT_get_affine_coordinates_GF2m
+ EC_POINT_set_compressed_coordinates_GF2m
+
+ Point compression for binary fields is disabled by default for
+ patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
+ enable it).
+
+ As binary polynomials are represented as BIGNUMs, various members
+ of the EC_GROUP and EC_POINT data structures can be shared
+ between the implementations for prime fields and binary fields;
+ the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
+ are essentially identical to their ..._GFp counterparts.
+ (For simplicity, the '..._GFp' prefix has been dropped from
+ various internal method names.)
+
+ An internal 'field_div' method (similar to 'field_mul' and
+ 'field_sqr') has been added; this is used only for binary fields.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
+ through methods ('mul', 'precompute_mult').
+
+ The generic implementations (now internally called 'ec_wNAF_mul'
+ and 'ec_wNAF_precomputed_mult') remain the default if these
+ methods are undefined.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) New function EC_GROUP_get_degree, which is defined through
+ EC_METHOD. For curves over prime fields, this returns the bit
+ length of the modulus.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) New functions EC_GROUP_dup, EC_POINT_dup.
+ (These simply call ..._new and ..._copy).
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
+ Polynomials are represented as BIGNUMs (where the sign bit is not
+ used) in the following functions [macros]:
+
+ BN_GF2m_add
+ BN_GF2m_sub [= BN_GF2m_add]
+ BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
+ BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
+ BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
+ BN_GF2m_mod_inv
+ BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
+ BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
+ BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
+ BN_GF2m_cmp [= BN_ucmp]
+
+ (Note that only the 'mod' functions are actually for fields GF(2^m).
+ BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
+
+ For some functions, an the irreducible polynomial defining a
+ field can be given as an 'unsigned int[]' with strictly
+ decreasing elements giving the indices of those bits that are set;
+ i.e., p[] represents the polynomial
+ f(t) = t^p[0] + t^p[1] + ... + t^p[k]
+ where
+ p[0] > p[1] > ... > p[k] = 0.
+ This applies to the following functions:
+
+ BN_GF2m_mod_arr
+ BN_GF2m_mod_mul_arr
+ BN_GF2m_mod_sqr_arr
+ BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
+ BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
+ BN_GF2m_mod_exp_arr
+ BN_GF2m_mod_sqrt_arr
+ BN_GF2m_mod_solve_quad_arr
+ BN_GF2m_poly2arr
+ BN_GF2m_arr2poly
+
+ Conversion can be performed by the following functions:
+
+ BN_GF2m_poly2arr
+ BN_GF2m_arr2poly
+
+ bntest.c has additional tests for binary polynomial arithmetic.
+
+ Two implementations for BN_GF2m_mod_div() are available.
+ The default algorithm simply uses BN_GF2m_mod_inv() and
+ BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
+ if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
+ copyright notice in crypto/bn/bn_gf2m.c before enabling it).
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Add new error code 'ERR_R_DISABLED' that can be used when some
+ functionality is disabled at compile-time.
+ [Douglas Stebila <douglas.stebila@sun.com>]
+
+ *) Change default behaviour of 'openssl asn1parse' so that more
+ information is visible when viewing, e.g., a certificate:
+
+ Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
+ mode the content of non-printable OCTET STRINGs is output in a
+ style similar to INTEGERs, but with '[HEX DUMP]' prepended to
+ avoid the appearance of a printable string.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
+ functions
+ EC_GROUP_set_asn1_flag()
+ EC_GROUP_get_asn1_flag()
+ EC_GROUP_set_point_conversion_form()
+ EC_GROUP_get_point_conversion_form()
+ These control ASN1 encoding details:
+ - Curves (i.e., groups) are encoded explicitly unless asn1_flag
+ has been set to OPENSSL_EC_NAMED_CURVE.
+ - Points are encoded in uncompressed form by default; options for
+ asn1_for are as for point2oct, namely
+ POINT_CONVERSION_COMPRESSED
+ POINT_CONVERSION_UNCOMPRESSED
+ POINT_CONVERSION_HYBRID
+
+ Also add 'seed' and 'seed_len' members to EC_GROUP with access
+ functions
+ EC_GROUP_set_seed()
+ EC_GROUP_get0_seed()
+ EC_GROUP_get_seed_len()
+ This is used only for ASN1 purposes (so far).
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add 'field_type' member to EC_METHOD, which holds the NID
+ of the appropriate field type OID. The new function
+ EC_METHOD_get_field_type() returns this value.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add functions
+ EC_POINT_point2bn()
+ EC_POINT_bn2point()
+ EC_POINT_point2hex()
+ EC_POINT_hex2point()
+ providing useful interfaces to EC_POINT_point2oct() and
+ EC_POINT_oct2point().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Change internals of the EC library so that the functions
+ EC_GROUP_set_generator()
+ EC_GROUP_get_generator()
+ EC_GROUP_get_order()
+ EC_GROUP_get_cofactor()
+ are implemented directly in crypto/ec/ec_lib.c and not dispatched
+ to methods, which would lead to unnecessary code duplication when
+ adding different types of curves.
+ [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
+
+ *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
+ arithmetic, and such that modified wNAFs are generated
+ (which avoid length expansion in many cases).
+ [Bodo Moeller]
+
+ *) Add a function EC_GROUP_check_discriminant() (defined via
+ EC_METHOD) that verifies that the curve discriminant is non-zero.
+
+ Add a function EC_GROUP_check() that makes some sanity tests
+ on a EC_GROUP, its generator and order. This includes
+ EC_GROUP_check_discriminant().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add ECDSA in new directory crypto/ecdsa/.
+
+ Add applications 'openssl ecparam' and 'openssl ecdsa'
+ (these are based on 'openssl dsaparam' and 'openssl dsa').
+
+ ECDSA support is also included in various other files across the
+ library. Most notably,
+ - 'openssl req' now has a '-newkey ecdsa:file' option;
+ - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
+ - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
+ d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
+ them suitable for ECDSA where domain parameters must be
+ extracted before the specific public key;
+ - ECDSA engine support has been added.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Include some named elliptic curves, and add OIDs from X9.62,
+ SECG, and WAP/WTLS. Each curve can be obtained from the new
+ function
+ EC_GROUP_new_by_curve_name(),
+ and the list of available named curves can be obtained with
+ EC_get_builtin_curves().
+ Also add a 'curve_name' member to EC_GROUP objects, which can be
+ accessed via
+ EC_GROUP_set_curve_name()
+ EC_GROUP_get_curve_name()
+ [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
+
+ *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
+ was actually never needed) and in BN_mul(). The removal in BN_mul()
+ required a small change in bn_mul_part_recursive() and the addition
+ of the functions bn_cmp_part_words(), bn_sub_part_words() and
+ bn_add_part_words(), which do the same thing as bn_cmp_words(),
+ bn_sub_words() and bn_add_words() except they take arrays with
+ differing sizes.
+ [Richard Levitte]
+
+ Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
+
+ *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
+ The value now differs depending on if you build for FIPS or not.
+ BEWARE! A program linked with a shared FIPSed libcrypto can't be
+ safely run with a non-FIPSed libcrypto, as it may crash because of
+ the difference induced by this change.
+ [Andy Polyakov]
+
+ Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
+
+ *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
+ (part of SSL_OP_ALL). This option used to disable the
+ countermeasure against man-in-the-middle protocol-version
+ rollback in the SSL 2.0 server implementation, which is a bad
+ idea. (CVE-2005-2969)
+
+ [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
+ for Information Security, National Institute of Advanced Industrial
+ Science and Technology [AIST], Japan)]
+
+ *) Minimal support for X9.31 signatures and PSS padding modes. This is
+ mainly for FIPS compliance and not fully integrated at this stage.
+ [Steve Henson]
+
+ *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
+ the exponentiation using a fixed-length exponent. (Otherwise,
+ the information leaked through timing could expose the secret key
+ after many signatures; cf. Bleichenbacher's attack on DSA with
+ biased k.)
+ [Bodo Moeller]
+
+ *) Make a new fixed-window mod_exp implementation the default for
+ RSA, DSA, and DH private-key operations so that the sequence of
+ squares and multiplies and the memory access pattern are
+ independent of the particular secret key. This will mitigate
+ cache-timing and potential related attacks.
+
+ BN_mod_exp_mont_consttime() is the new exponentiation implementation,
+ and this is automatically used by BN_mod_exp_mont() if the new flag
+ BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
+ will use this BN flag for private exponents unless the flag
+ RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
+ DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
+
+ [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
+
+ *) Change the client implementation for SSLv23_method() and
+ SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
+ Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
+ (Previously, the SSL 2.0 backwards compatible Client Hello
+ message format would be used even with SSL_OP_NO_SSLv2.)
+ [Bodo Moeller]
+
+ *) Add support for smime-type MIME parameter in S/MIME messages which some
+ clients need.
+ [Steve Henson]
+
+ *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
+ a threadsafe manner. Modify rsa code to use new function and add calls
+ to dsa and dh code (which had race conditions before).
+ [Steve Henson]
+
+ *) Include the fixed error library code in the C error file definitions
+ instead of fixing them up at runtime. This keeps the error code
+ structures constant.
+ [Steve Henson]
+
+ Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
+
+ [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
+ OpenSSL 0.9.8.]
+
+ *) Fixes for newer kerberos headers. NB: the casts are needed because
+ the 'length' field is signed on one version and unsigned on another
+ with no (?) obvious way to tell the difference, without these VC++
+ complains. Also the "definition" of FAR (blank) is no longer included
+ nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
+ some needed definitions.
+ [Steve Henson]
+
+ *) Undo Cygwin change.
+ [Ulf Möller]
+
+ *) Added support for proxy certificates according to RFC 3820.
+ Because they may be a security thread to unaware applications,
+ they must be explicitely allowed in run-time. See
+ docs/HOWTO/proxy_certificates.txt for further information.
+ [Richard Levitte]
+
+ 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 <dtucker@zip.com.au> 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 <openssl@nauticusnet.com>, 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 <d.holmes@f5.com>]
+
+ *) 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 (CVE-2004-0079)
+ [Joe Orton, Steve Henson]
+
+ *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
+ (CVE-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 <Peter.Sylvester@EdelWeb.fr>]
+
+ *) 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 (CVE-2003-0543 and CVE-2003-0544).
+
+ Free up ASN1_TYPE correctly if ANY type is invalid (CVE-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
+ 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]
+
+ *) 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.
+ [Ulf Moeller]
+
+ Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
+
+ *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
+ via timing by performing a MAC computation even if incorrrect
+ block cipher padding has been found. This is a countermeasure
+ against active attacks where the attacker has to distinguish
+ between bad padding and a MAC verification error. (CVE-2003-0078)
+
+ [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
+ Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
+ Martin Vuagnoux (EPFL, Ilion)]
+
+ *) Make the no-err option work as intended. The intention with no-err
+ is not to have the whole error stack handling routines removed from
+ libcrypto, it's only intended to remove all the function name and
+ reason texts, thereby removing some of the footprint that may not
+ be interesting if those errors aren't displayed anyway.
+
+ NOTE: it's still possible for any application or module to have it's
+ own set of error texts inserted. The routines are there, just not
+ used by default when no-err is given.
+ [Richard Levitte]
+
+ *) Add support for FreeBSD on IA64.
+ [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
+
+ *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
+ Kerberos function mit_des_cbc_cksum(). Before this change,
+ the value returned by DES_cbc_cksum() was like the one from
+ mit_des_cbc_cksum(), except the bytes were swapped.
+ [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
+
+ *) Allow an application to disable the automatic SSL chain building.
+ Before this a rather primitive chain build was always performed in
+ ssl3_output_cert_chain(): an application had no way to send the
+ correct chain if the automatic operation produced an incorrect result.
+
+ Now the chain builder is disabled if either:
+
+ 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
+
+ 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
+
+ The reasoning behind this is that an application would not want the
+ auto chain building to take place if extra chain certificates are
+ present and it might also want a means of sending no additional
+ certificates (for example the chain has two certificates and the
+ root is omitted).
+ [Steve Henson]
+
+ *) Add the possibility to build without the ENGINE framework.
+ [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
+
+ *) Under Win32 gmtime() can return NULL: check return value in
+ OPENSSL_gmtime(). Add error code for case where gmtime() fails.
+ [Steve Henson]
- EC_GF2m_simple_method
+ *) DSA routines: under certain error conditions uninitialized BN objects
+ could be freed. Solution: make sure initialization is performed early
+ enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
+ Nils Larsch <nla@trustcenter.de> via PR#459)
+ [Lutz Jaenicke]
- New API functions:
+ *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
+ checked on reconnect on the client side, therefore session resumption
+ could still fail with a "ssl session id is different" error. This
+ behaviour is masked when SSL_OP_ALL is used due to
+ SSL_OP_MICROSOFT_SESS_ID_BUG being set.
+ Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
+ followup to PR #377.
+ [Lutz Jaenicke]
- EC_GROUP_new_curve_GF2m
- EC_GROUP_set_curve_GF2m
- EC_GROUP_get_curve_GF2m
- EC_POINT_set_affine_coordinates_GF2m
- EC_POINT_get_affine_coordinates_GF2m
- EC_POINT_set_compressed_coordinates_GF2m
+ *) IA-32 assembler support enhancements: unified ELF targets, support
+ for SCO/Caldera platforms, fix for Cygwin shared build.
+ [Andy Polyakov]
- Point compression for binary fields is disabled by default for
- patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
- enable it).
+ *) Add support for FreeBSD on sparc64. As a consequence, support for
+ FreeBSD on non-x86 processors is separate from x86 processors on
+ the config script, much like the NetBSD support.
+ [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
- As binary polynomials are represented as BIGNUMs, various members
- of the EC_GROUP and EC_POINT data structures can be shared
- between the implementations for prime fields and binary fields;
- the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
- are essentially identical to their ..._GFp counterparts.
- (For simplicity, the '..._GFp' prefix has been dropped from
- various internal method names.)
+ Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
- An internal 'field_div' method (similar to 'field_mul' and
- 'field_sqr') has been added; this is used only for binary fields.
+ [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
+ OpenSSL 0.9.7.]
- [Sheueling Chang Shantz and Douglas Stebila
- (Sun Microsystems Laboratories)]
+ *) 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
+ caching could not have worked due to the session ID mismatch between
+ client and server.
+ Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
+ PR #377.
+ [Lutz Jaenicke]
- *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
- through methods ('mul', 'precompute_mult').
+ *) Change the declaration of needed Kerberos libraries to use EX_LIBS
+ instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
+ removed entirely.
+ [Richard Levitte]
- The generic implementations (now internally called 'ec_wNAF_mul'
- and 'ec_wNAF_precomputed_mult') remain the default if these
- methods are undefined.
+ *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
+ seems that in spite of existing for more than a year, many application
+ author have done nothing to provide the necessary callbacks, which
+ means that this particular engine will not work properly anywhere.
+ This is a very unfortunate situation which forces us, in the name
+ of usability, to give the hw_ncipher.c a static lock, which is part
+ of libcrypto.
+ NOTE: This is for the 0.9.7 series ONLY. This hack will never
+ appear in 0.9.8 or later. We EXPECT application authors to have
+ dealt properly with this when 0.9.8 is released (unless we actually
+ make such changes in the libcrypto locking code that changes will
+ have to be made anyway).
+ [Richard Levitte]
- [Sheueling Chang Shantz and Douglas Stebila
- (Sun Microsystems Laboratories)]
+ *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
+ octets have been read, EOF or an error occurs. Without this change
+ some truncated ASN1 structures will not produce an error.
+ [Steve Henson]
- *) New function EC_GROUP_get_degree, which is defined through
- EC_METHOD. For curves over prime fields, this returns the bit
- length of the modulus.
+ *) Disable Heimdal support, since it hasn't been fully implemented.
+ Still give the possibility to force the use of Heimdal, but with
+ warnings and a request that patches get sent to openssl-dev.
+ [Richard Levitte]
- [Sheueling Chang Shantz and Douglas Stebila
- (Sun Microsystems Laboratories)]
+ *) Add the VC-CE target, introduce the WINCE sysname, and add
+ INSTALL.WCE and appropriate conditionals to make it build.
+ [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
- *) New functions EC_GROUP_dup, EC_POINT_dup.
- (These simply call ..._new and ..._copy).
+ *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
+ cygssl-x.y.z.dll, where x, y and z are the major, minor and
+ edit numbers of the version.
+ [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
- [Sheueling Chang Shantz and Douglas Stebila
- (Sun Microsystems Laboratories)]
+ *) Introduce safe string copy and catenation functions
+ (BUF_strlcpy() and BUF_strlcat()).
+ [Ben Laurie (CHATS) and Richard Levitte]
- *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
- Polynomials are represented as BIGNUMs (where the sign bit is not
- used) in the following functions [macros]:
+ *) Avoid using fixed-size buffers for one-line DNs.
+ [Ben Laurie (CHATS)]
- BN_GF2m_add
- BN_GF2m_sub [= BN_GF2m_add]
- BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
- BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
- BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
- BN_GF2m_mod_inv
- BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
- BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
- BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
- BN_GF2m_cmp [= BN_ucmp]
+ *) Add BUF_MEM_grow_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
- (Note that only the 'mod' functions are actually for fields GF(2^m).
- BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
+ *) Avoid using fixed size buffers for configuration file location.
+ [Ben Laurie (CHATS)]
- For some functions, an the irreducible polynomial defining a
- field can be given as an 'unsigned int[]' with strictly
- decreasing elements giving the indices of those bits that are set;
- i.e., p[] represents the polynomial
- f(t) = t^p[0] + t^p[1] + ... + t^p[k]
- where
- p[0] > p[1] > ... > p[k] = 0.
- This applies to the following functions:
+ *) Avoid filename truncation for various CA files.
+ [Ben Laurie (CHATS)]
- BN_GF2m_mod_arr
- BN_GF2m_mod_mul_arr
- BN_GF2m_mod_sqr_arr
- BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
- BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
- BN_GF2m_mod_exp_arr
- BN_GF2m_mod_sqrt_arr
- BN_GF2m_mod_solve_quad_arr
- BN_GF2m_poly2arr
- BN_GF2m_arr2poly
+ *) Use sizeof in preference to magic numbers.
+ [Ben Laurie (CHATS)]
- Conversion can be performed by the following functions:
+ *) Avoid filename truncation in cert requests.
+ [Ben Laurie (CHATS)]
- BN_GF2m_poly2arr
- BN_GF2m_arr2poly
+ *) Add assertions to check for (supposedly impossible) buffer
+ overflows.
+ [Ben Laurie (CHATS)]
- bntest.c has additional tests for binary polynomial arithmetic.
+ *) Don't cache truncated DNS entries in the local cache (this could
+ potentially lead to a spoofing attack).
+ [Ben Laurie (CHATS)]
- Two implementations for BN_GF2m_mod_div() are available.
- The default algorithm simply uses BN_GF2m_mod_inv() and
- BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
- if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
- copyright notice in crypto/bn/bn_gf2m.c before enabling it).
+ *) Fix various buffers to be large enough for hex/decimal
+ representations in a platform independent manner.
+ [Ben Laurie (CHATS)]
- [Sheueling Chang Shantz and Douglas Stebila
- (Sun Microsystems Laboratories)]
+ *) Add CRYPTO_realloc_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
- *) Add new error code 'ERR_R_DISABLED' that can be used when some
- functionality is disabled at compile-time.
- [Douglas Stebila <douglas.stebila@sun.com>]
+ *) Add BIO_indent() to avoid much slightly worrying code to do
+ indents.
+ [Ben Laurie (CHATS)]
- *) Change default behaviour of 'openssl asn1parse' so that more
- information is visible when viewing, e.g., a certificate:
+ *) Convert sprintf()/BIO_puts() to BIO_printf().
+ [Ben Laurie (CHATS)]
- Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
- mode the content of non-printable OCTET STRINGs is output in a
- style similar to INTEGERs, but with '[HEX DUMP]' prepended to
- avoid the appearance of a printable string.
- [Nils Larsch <nla@trustcenter.de>]
+ *) buffer_gets() could terminate with the buffer only half
+ full. Fixed.
+ [Ben Laurie (CHATS)]
- *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
- functions
- EC_GROUP_set_asn1_flag()
- EC_GROUP_get_asn1_flag()
- EC_GROUP_set_point_conversion_form()
- EC_GROUP_get_point_conversion_form()
- These control ASN1 encoding details:
- - Curves (i.e., groups) are encoded explicitly unless asn1_flag
- has been set to OPENSSL_EC_NAMED_CURVE.
- - Points are encoded in uncompressed form by default; options for
- asn1_for are as for point2oct, namely
- POINT_CONVERSION_COMPRESSED
- POINT_CONVERSION_UNCOMPRESSED
- POINT_CONVERSION_HYBRID
+ *) Add assertions to prevent user-supplied crypto functions from
+ overflowing internal buffers by having large block sizes, etc.
+ [Ben Laurie (CHATS)]
- Also add 'seed' and 'seed_len' members to EC_GROUP with access
- functions
- EC_GROUP_set_seed()
- EC_GROUP_get0_seed()
- EC_GROUP_get_seed_len()
- This is used only for ASN1 purposes (so far).
- [Nils Larsch <nla@trustcenter.de>]
+ *) New OPENSSL_assert() macro (similar to assert(), but enabled
+ unconditionally).
+ [Ben Laurie (CHATS)]
- *) Add 'field_type' member to EC_METHOD, which holds the NID
- of the appropriate field type OID. The new function
- EC_METHOD_get_field_type() returns this value.
- [Nils Larsch <nla@trustcenter.de>]
+ *) Eliminate unused copy of key in RC4.
+ [Ben Laurie (CHATS)]
- *) Add functions
- EC_POINT_point2bn()
- EC_POINT_bn2point()
- EC_POINT_point2hex()
- EC_POINT_hex2point()
- providing useful interfaces to EC_POINT_point2oct() and
- EC_POINT_oct2point().
- [Nils Larsch <nla@trustcenter.de>]
+ *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
+ [Ben Laurie (CHATS)]
- *) Change internals of the EC library so that the functions
- EC_GROUP_set_generator()
- EC_GROUP_get_generator()
- EC_GROUP_get_order()
- EC_GROUP_get_cofactor()
- are implemented directly in crypto/ec/ec_lib.c and not dispatched
- to methods, which would lead to unnecessary code duplication when
- adding different types of curves.
- [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
+ *) Fix off-by-one error in EGD path.
+ [Ben Laurie (CHATS)]
- *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
- arithmetic, and such that modified wNAFs are generated
- (which avoid length expansion in many cases).
- [Bodo Moeller]
+ *) If RANDFILE path is too long, ignore instead of truncating.
+ [Ben Laurie (CHATS)]
- *) Add a function EC_GROUP_check_discriminant() (defined via
- EC_METHOD) that verifies that the curve discriminant is non-zero.
+ *) Eliminate unused and incorrectly sized X.509 structure
+ CBCParameter.
+ [Ben Laurie (CHATS)]
- Add a function EC_GROUP_check() that makes some sanity tests
- on a EC_GROUP, its generator and order. This includes
- EC_GROUP_check_discriminant().
- [Nils Larsch <nla@trustcenter.de>]
+ *) Eliminate unused and dangerous function knumber().
+ [Ben Laurie (CHATS)]
- *) Add ECDSA in new directory crypto/ecdsa/.
+ *) Eliminate unused and dangerous structure, KSSL_ERR.
+ [Ben Laurie (CHATS)]
- Add applications 'openssl ecparam' and 'openssl ecdsa'
- (these are based on 'openssl dsaparam' and 'openssl dsa').
+ *) Protect against overlong session ID context length in an encoded
+ session object. Since these are local, this does not appear to be
+ exploitable.
+ [Ben Laurie (CHATS)]
- ECDSA support is also included in various other files across the
- library. Most notably,
- - 'openssl req' now has a '-newkey ecdsa:file' option;
- - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
- - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
- d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
- them suitable for ECDSA where domain parameters must be
- extracted before the specific public key;
- - ECDSA engine support has been added.
- [Nils Larsch <nla@trustcenter.de>]
+ *) Change from security patch (see 0.9.6e below) that did not affect
+ the 0.9.6 release series:
- *) Include some named elliptic curves, and add OIDs from X9.62,
- SECG, and WAP/WTLS. Each curve can be obtained from the new
- function
- EC_GROUP_new_by_nid(),
- and the list of available named curves can be obtained with
- EC_get_builtin_curves().
- Also add a 'curve_name' member to EC_GROUP objects, which can be
- accessed via
- EC_GROUP_set_nid()
- EC_GROUP_get_nid()
- [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
-
- Changes between 0.9.6g and 0.9.7 [XX xxx 2002]
+ Remote buffer overflow in SSL3 protocol - an attacker could
+ supply an oversized master key in Kerberos-enabled versions.
+ (CVE-2002-0657)
+ [Ben Laurie (CHATS)]
+
+ *) Change the SSL kerb5 codes to match RFC 2712.
+ [Richard Levitte]
*) Make -nameopt work fully for req and add -reqopt switch.
[Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
*) The "block size" for block ciphers in CFB and OFB mode should be 1.
[Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
- *) The "block size" for block ciphers in CFB and OFB mode should be 1.
- [Steve Henson]
-
*) Make sure tests can be performed even if the corresponding algorithms
have been removed entirely. This was also the last step to make
OpenSSL compilable with DJGPP under all reasonable conditions.
# Place yourself outside of the OpenSSL source tree. In
# this example, the environment variable OPENSSL_SOURCE
# is assumed to contain the absolute OpenSSL source directory.
- mkdir -p objtree/`uname -s`-`uname -r`-`uname -m`
- cd objtree/`uname -s`-`uname -r`-`uname -m`
- (cd $OPENSSL_SOURCE; find . -type f -o -type l) | while read F; do
+ mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
+ cd objtree/"`uname -s`-`uname -r`-`uname -m`"
+ (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
mkdir -p `dirname $F`
ln -s $OPENSSL_SOURCE/$F $F
done
be reduced modulo m.
[Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
+#if 0
+ The following entry accidentily appeared in the CHANGES file
+ distributed with OpenSSL 0.9.7. The modifications described in
+ it do *not* apply to OpenSSL 0.9.7.
+
*) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
was actually never needed) and in BN_mul(). The removal in BN_mul()
required a small change in bn_mul_part_recursive() and the addition
bn_sub_words() and bn_add_words() except they take arrays with
differing sizes.
[Richard Levitte]
+#endif
*) In 'openssl passwd', verify passwords read from the terminal
unless the '-salt' option is used (which usually means that
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
- Changes between 0.9.6g and 0.9.6h [xx XXX xxxx]
+ 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 (CVE-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 (CVE-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 (CVE-2003-0543 and CVE-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
+ via timing by performing a MAC computation even if incorrrect
+ block cipher padding has been found. This is a countermeasure
+ against active attacks where the attacker has to distinguish
+ between bad padding and a MAC verification error. (CVE-2003-0078)
+
+ [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
+ Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
+ Martin Vuagnoux (EPFL, Ilion)]
+
+ Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
+
+ *) New function OPENSSL_cleanse(), which is used to cleanse a section of
+ memory from it's contents. This is done with a counter that will
+ place alternating values in each byte. This can be used to solve
+ two issues: 1) the removal of calls to memset() by highly optimizing
+ compilers, and 2) cleansing with other values than 0, since those can
+ be read through on certain media, for example a swap space on disk.
+ [Geoff Thorpe]
+
+ *) Bugfix: client side session caching did not work with external caching,
+ because the session->cipher setting was not restored when reloading
+ from the external cache. This problem was masked, when
+ SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
+ (Found by Steve Haslam <steve@araqnid.ddts.net>.)
+ [Lutz Jaenicke]
+
+ *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
+ length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
+ [Zeev Lieber <zeev-l@yahoo.com>]
+
+ *) Undo an undocumented change introduced in 0.9.6e which caused
+ repeated calls to OpenSSL_add_all_ciphers() and
+ OpenSSL_add_all_digests() to be ignored, even after calling
+ EVP_cleanup().
+ [Richard Levitte]
+
+ *) Change the default configuration reader to deal with last line not
+ being properly terminated.
+ [Richard Levitte]
+
+ *) Change X509_NAME_cmp() so it applies the special rules on handling
+ DN values that are of type PrintableString, as well as RDNs of type
+ emailAddress where the value has the type ia5String.
+ [stefank@valicert.com via Richard Levitte]
+
+ *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
+ the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
+ doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
+ the bitwise-OR of the two for use by the majority of applications
+ wanting this behaviour, and update the docs. The documented
+ behaviour and actual behaviour were inconsistent and had been
+ changing anyway, so this is more a bug-fix than a behavioural
+ change.
+ [Geoff Thorpe, diagnosed by Nadav Har'El]
*) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
(the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
overflow checks added in 0.9.6e. This prevents DoS (the
assertions could call abort()).
[Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
-
+
Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
*) Add various sanity checks to asn1_get_length() to reject
*) Add various sanity checks to asn1_get_length() to reject
the ASN1 length bytes if they exceed sizeof(long), will appear
negative or the content length exceeds the length of the
- supplied buffer. (CAN-2002-0659)
+ supplied buffer. (CVE-2002-0659)
[Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
*) Assertions for various potential buffer overflows, not known to
[Ben Laurie (CHATS)]
*) Various temporary buffers to hold ASCII versions of integers were
- too small for 64 bit platforms. (CAN-2002-0655)
+ too small for 64 bit platforms. (CVE-2002-0655)
[Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
*) Remote buffer overflow in SSL3 protocol - an attacker could
- supply an oversized master key in Kerberos-enabled versions.
- (CAN-2002-0657)
- [Ben Laurie (CHATS)]
-
- *) Remote buffer overflow in SSL3 protocol - an attacker could
- supply an oversized session ID to a client. (CAN-2002-0656)
+ supply an oversized session ID to a client. (CVE-2002-0656)
[Ben Laurie (CHATS)]
*) Remote buffer overflow in SSL2 protocol - an attacker could
- supply an oversized client master key. (CAN-2002-0656)
+ supply an oversized client master key. (CVE-2002-0656)
[Ben Laurie (CHATS)]
Changes between 0.9.6c and 0.9.6d [9 May 2002]
value is 0.
[Richard Levitte]
- *) Add the configuration target linux-s390x.
- [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
-
*) [In 0.9.6d-engine release:]
Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
[Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+ *) Add the configuration target linux-s390x.
+ [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
+
*) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
variable as an indication that a ClientHello message has been
projects / openssl.git / blobdiff