diff options
Diffstat (limited to 'crypto/ec/ec_oct.c')
| -rw-r--r-- | crypto/ec/ec_oct.c | 140 |
1 files changed, 49 insertions, 91 deletions
diff --git a/crypto/ec/ec_oct.c b/crypto/ec/ec_oct.c index 040c414a33f2..522f79e67360 100644 --- a/crypto/ec/ec_oct.c +++ b/crypto/ec/ec_oct.c @@ -1,64 +1,11 @@ -/* crypto/ec/ec_lib.c */ /* - * Originally written by Bodo Moeller for the OpenSSL project. - */ -/* ==================================================================== - * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. + * Copyright 2011-2018 The OpenSSL Project Authors. All Rights Reserved. + * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ -/* ==================================================================== - * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * Binary polynomial ECC support in OpenSSL originally developed by - * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include <string.h> @@ -68,18 +15,17 @@ #include "ec_lcl.h" -int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, - EC_POINT *point, const BIGNUM *x, - int y_bit, BN_CTX *ctx) +int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *point, + const BIGNUM *x, int y_bit, BN_CTX *ctx) { - if (group->meth->point_set_compressed_coordinates == 0 + if (group->meth->point_set_compressed_coordinates == NULL && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) { - ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, + ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; } - if (group->meth != point->meth) { - ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, + if (!ec_point_is_compat(point, group)) { + ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES, EC_R_INCOMPATIBLE_OBJECTS); return 0; } @@ -90,7 +36,7 @@ int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, else #ifdef OPENSSL_NO_EC2M { - ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, + ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES, EC_R_GF2M_NOT_SUPPORTED); return 0; } @@ -103,33 +49,22 @@ int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, y_bit, ctx); } -#ifndef OPENSSL_NO_EC2M +#if OPENSSL_API_COMPAT < 0x10200000L +int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, + EC_POINT *point, const BIGNUM *x, + int y_bit, BN_CTX *ctx) +{ + return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx); +} + +# ifndef OPENSSL_NO_EC2M int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *point, const BIGNUM *x, int y_bit, BN_CTX *ctx) { - if (group->meth->point_set_compressed_coordinates == 0 - && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) { - ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, - ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return 0; - } - if (group->meth != point->meth) { - ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, - EC_R_INCOMPATIBLE_OBJECTS); - return 0; - } - if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) { - if (group->meth->field_type == NID_X9_62_prime_field) - return ec_GFp_simple_set_compressed_coordinates(group, point, x, - y_bit, ctx); - else - return ec_GF2m_simple_set_compressed_coordinates(group, point, x, - y_bit, ctx); - } - return group->meth->point_set_compressed_coordinates(group, point, x, - y_bit, ctx); + return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx); } +# endif #endif size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, @@ -141,7 +76,7 @@ size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; } - if (group->meth != point->meth) { + if (!ec_point_is_compat(point, group)) { ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS); return 0; } @@ -171,7 +106,7 @@ int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point, ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); return 0; } - if (group->meth != point->meth) { + if (!ec_point_is_compat(point, group)) { ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS); return 0; } @@ -190,3 +125,26 @@ int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point, } return group->meth->oct2point(group, point, buf, len, ctx); } + +size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point, + point_conversion_form_t form, + unsigned char **pbuf, BN_CTX *ctx) +{ + size_t len; + unsigned char *buf; + + len = EC_POINT_point2oct(group, point, form, NULL, 0, NULL); + if (len == 0) + return 0; + if ((buf = OPENSSL_malloc(len)) == NULL) { + ECerr(EC_F_EC_POINT_POINT2BUF, ERR_R_MALLOC_FAILURE); + return 0; + } + len = EC_POINT_point2oct(group, point, form, buf, len, ctx); + if (len == 0) { + OPENSSL_free(buf); + return 0; + } + *pbuf = buf; + return len; +} |