OpenSSL CHANGES
_______________
- Changes between 0.9.7c and 0.9.8 [xx XXX xxxx]
+ Changes between 0.9.7d and 0.9.7e [XX xxx XXXX]
- *) 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]
+ *) Various fixes to s3_pkt.c so alerts are sent properly.
+ [David Holmes <d.holmes@f5.com>]
- *) 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.
+ *) 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]
- *) 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:
+ Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
- 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.
+ *) Fix null-pointer assignment in do_change_cipher_spec() revealed
+ by using the Codenomicon TLS Test Tool (CAN-2004-0079)
+ [Joe Orton, Steve Henson]
- 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]
+ *) 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
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]
-
- *) 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]
-
- *) 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 new macros that behave like
- functions
-
- void BN_set_sign(BIGNUM *a, int neg);
- int BN_get_sign(const BIGNUM *a);
-
- and avoid the need to access 'a->neg' directly in applications.
- [Nils Larsch <nla@trustcenter.de>]
-
- *) 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_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]
-
- *) 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 0.9.7c and 0.9.7d [xx XXX XXXX]
-
*) 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
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.
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
- Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
+ Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
- *) Fix various bugs revealed by running the NISCC test suite:
+ *) Fix null-pointer assignment in do_change_cipher_spec() revealed
+ by using the Codenomicon TLS Test Tool (CAN-2004-0079)
+ [Joe Orton, Steve Henson]
- 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.
+ 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
projects / oweals / openssl.git / blobdiff