diff options
Diffstat (limited to 'lib/libcrypto/ec/ecp_mont.c')
| -rw-r--r-- | lib/libcrypto/ec/ecp_mont.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/lib/libcrypto/ec/ecp_mont.c b/lib/libcrypto/ec/ecp_mont.c deleted file mode 100644 index 8fd7ebc7b94..00000000000 --- a/lib/libcrypto/ec/ecp_mont.c +++ /dev/null @@ -1,270 +0,0 @@ -/* $OpenBSD: ecp_mont.c,v 1.31 2024/10/31 15:37:53 tb Exp $ */ -/* - * Originally written by Bodo Moeller for the OpenSSL project. - */ -/* ==================================================================== - * Copyright (c) 1998-2001 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. - * - * 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. - * Portions of this software developed by SUN MICROSYSTEMS, INC., - * and contributed to the OpenSSL project. - */ - -#include <openssl/err.h> - -#include "ec_local.h" - -static void -ec_GFp_mont_group_clear(EC_GROUP *group) -{ - BN_MONT_CTX_free(group->mont_ctx); - group->mont_ctx = NULL; - - BN_free(group->mont_one); - group->mont_one = NULL; -} - -static int -ec_GFp_mont_group_init(EC_GROUP *group) -{ - int ok; - - ok = ec_GFp_simple_group_init(group); - group->mont_ctx = NULL; - group->mont_one = NULL; - return ok; -} - -static void -ec_GFp_mont_group_finish(EC_GROUP *group) -{ - ec_GFp_mont_group_clear(group); - ec_GFp_simple_group_finish(group); -} - -static int -ec_GFp_mont_group_copy(EC_GROUP *dest, const EC_GROUP *src) -{ - ec_GFp_mont_group_clear(dest); - - if (!ec_GFp_simple_group_copy(dest, src)) - return 0; - - if (src->mont_ctx != NULL) { - dest->mont_ctx = BN_MONT_CTX_new(); - if (dest->mont_ctx == NULL) - return 0; - if (!BN_MONT_CTX_copy(dest->mont_ctx, src->mont_ctx)) - goto err; - } - if (src->mont_one != NULL) { - dest->mont_one = BN_dup(src->mont_one); - if (dest->mont_one == NULL) - goto err; - } - return 1; - - err: - if (dest->mont_ctx != NULL) { - BN_MONT_CTX_free(dest->mont_ctx); - dest->mont_ctx = NULL; - } - return 0; -} - -static int -ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, - const BIGNUM *b, BN_CTX *ctx) -{ - BN_MONT_CTX *mont = NULL; - BIGNUM *one = NULL; - int ret = 0; - - ec_GFp_mont_group_clear(group); - - mont = BN_MONT_CTX_new(); - if (mont == NULL) - goto err; - if (!BN_MONT_CTX_set(mont, p, ctx)) { - ECerror(ERR_R_BN_LIB); - goto err; - } - one = BN_new(); - if (one == NULL) - goto err; - if (!BN_to_montgomery(one, BN_value_one(), mont, ctx)) - goto err; - - group->mont_ctx = mont; - mont = NULL; - group->mont_one = one; - one = NULL; - - ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx); - if (!ret) - ec_GFp_mont_group_clear(group); - - err: - BN_MONT_CTX_free(mont); - BN_free(one); - - return ret; -} - -static int -ec_GFp_mont_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, - const BIGNUM *b, BN_CTX *ctx) -{ - if (group->mont_ctx == NULL) { - ECerror(EC_R_NOT_INITIALIZED); - return 0; - } - return BN_mod_mul_montgomery(r, a, b, group->mont_ctx, ctx); -} - -static int -ec_GFp_mont_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, - BN_CTX *ctx) -{ - if (group->mont_ctx == NULL) { - ECerror(EC_R_NOT_INITIALIZED); - return 0; - } - return BN_mod_mul_montgomery(r, a, a, group->mont_ctx, ctx); -} - -static int -ec_GFp_mont_field_encode(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, - BN_CTX *ctx) -{ - if (group->mont_ctx == NULL) { - ECerror(EC_R_NOT_INITIALIZED); - return 0; - } - return BN_to_montgomery(r, a, group->mont_ctx, ctx); -} - -static int -ec_GFp_mont_field_decode(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, - BN_CTX *ctx) -{ - if (group->mont_ctx == NULL) { - ECerror(EC_R_NOT_INITIALIZED); - return 0; - } - return BN_from_montgomery(r, a, group->mont_ctx, ctx); -} - -static int -ec_GFp_mont_field_set_to_one(const EC_GROUP *group, BIGNUM *r, BN_CTX *ctx) -{ - if (group->mont_one == NULL) { - ECerror(EC_R_NOT_INITIALIZED); - return 0; - } - if (!bn_copy(r, group->mont_one)) - return 0; - - return 1; -} - -static const EC_METHOD ec_GFp_mont_method = { - .field_type = NID_X9_62_prime_field, - .group_init = ec_GFp_mont_group_init, - .group_finish = ec_GFp_mont_group_finish, - .group_copy = ec_GFp_mont_group_copy, - .group_set_curve = ec_GFp_mont_group_set_curve, - .group_get_curve = ec_GFp_simple_group_get_curve, - .group_get_degree = ec_GFp_simple_group_get_degree, - .group_order_bits = ec_group_simple_order_bits, - .group_check_discriminant = ec_GFp_simple_group_check_discriminant, - .point_init = ec_GFp_simple_point_init, - .point_finish = ec_GFp_simple_point_finish, - .point_copy = ec_GFp_simple_point_copy, - .point_set_to_infinity = ec_GFp_simple_point_set_to_infinity, - .point_set_Jprojective_coordinates = - ec_GFp_simple_set_Jprojective_coordinates, - .point_get_Jprojective_coordinates = - ec_GFp_simple_get_Jprojective_coordinates, - .point_set_affine_coordinates = - ec_GFp_simple_point_set_affine_coordinates, - .point_get_affine_coordinates = - ec_GFp_simple_point_get_affine_coordinates, - .point_set_compressed_coordinates = - ec_GFp_simple_set_compressed_coordinates, - .add = ec_GFp_simple_add, - .dbl = ec_GFp_simple_dbl, - .invert = ec_GFp_simple_invert, - .is_at_infinity = ec_GFp_simple_is_at_infinity, - .is_on_curve = ec_GFp_simple_is_on_curve, - .point_cmp = ec_GFp_simple_cmp, - .make_affine = ec_GFp_simple_make_affine, - .points_make_affine = ec_GFp_simple_points_make_affine, - .mul_generator_ct = ec_GFp_simple_mul_generator_ct, - .mul_single_ct = ec_GFp_simple_mul_single_ct, - .mul_double_nonct = ec_GFp_simple_mul_double_nonct, - .field_mul = ec_GFp_mont_field_mul, - .field_sqr = ec_GFp_mont_field_sqr, - .field_encode = ec_GFp_mont_field_encode, - .field_decode = ec_GFp_mont_field_decode, - .field_set_to_one = ec_GFp_mont_field_set_to_one, - .blind_coordinates = ec_GFp_simple_blind_coordinates, -}; - -const EC_METHOD * -EC_GFp_mont_method(void) -{ - return &ec_GFp_mont_method; -} -LCRYPTO_ALIAS(EC_GFp_mont_method); |