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This commit is contained in:
zhaoxiaomeng
2018-01-04 13:38:57 +08:00
committed by Simon
parent d11f845fde
commit 53af3b51ae
2361 changed files with 387455 additions and 144458 deletions
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146
crypto/ec/ecp_mont.c
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@@ -1,12 +1,60 @@
/* crypto/ec/ecp_mont.c */
/*
* Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* 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.,
@@ -15,6 +63,10 @@
#include <openssl/err.h>
#ifdef OPENSSL_FIPS
# include <openssl/fips.h>
#endif
#include "ec_lcl.h"
const EC_METHOD *EC_GFp_mont_method(void)
@@ -29,7 +81,6 @@ const EC_METHOD *EC_GFp_mont_method(void)
ec_GFp_mont_group_set_curve,
ec_GFp_simple_group_get_curve,
ec_GFp_simple_group_get_degree,
ec_group_simple_order_bits,
ec_GFp_simple_group_check_discriminant,
ec_GFp_simple_point_init,
ec_GFp_simple_point_finish,
@@ -57,18 +108,14 @@ const EC_METHOD *EC_GFp_mont_method(void)
0 /* field_div */ ,
ec_GFp_mont_field_encode,
ec_GFp_mont_field_decode,
ec_GFp_mont_field_set_to_one,
ec_key_simple_priv2oct,
ec_key_simple_oct2priv,
0, /* set private */
ec_key_simple_generate_key,
ec_key_simple_check_key,
ec_key_simple_generate_public_key,
0, /* keycopy */
0, /* keyfinish */
ecdh_simple_compute_key
ec_GFp_mont_field_set_to_one
};
#ifdef OPENSSL_FIPS
if (FIPS_mode())
return fips_ec_gfp_mont_method();
#endif
return &ret;
}
@@ -84,28 +131,40 @@ int ec_GFp_mont_group_init(EC_GROUP *group)
void ec_GFp_mont_group_finish(EC_GROUP *group)
{
BN_MONT_CTX_free(group->field_data1);
group->field_data1 = NULL;
BN_free(group->field_data2);
group->field_data2 = NULL;
if (group->field_data1 != NULL) {
BN_MONT_CTX_free(group->field_data1);
group->field_data1 = NULL;
}
if (group->field_data2 != NULL) {
BN_free(group->field_data2);
group->field_data2 = NULL;
}
ec_GFp_simple_group_finish(group);
}
void ec_GFp_mont_group_clear_finish(EC_GROUP *group)
{
BN_MONT_CTX_free(group->field_data1);
group->field_data1 = NULL;
BN_clear_free(group->field_data2);
group->field_data2 = NULL;
if (group->field_data1 != NULL) {
BN_MONT_CTX_free(group->field_data1);
group->field_data1 = NULL;
}
if (group->field_data2 != NULL) {
BN_clear_free(group->field_data2);
group->field_data2 = NULL;
}
ec_GFp_simple_group_clear_finish(group);
}
int ec_GFp_mont_group_copy(EC_GROUP *dest, const EC_GROUP *src)
{
BN_MONT_CTX_free(dest->field_data1);
dest->field_data1 = NULL;
BN_clear_free(dest->field_data2);
dest->field_data2 = NULL;
if (dest->field_data1 != NULL) {
BN_MONT_CTX_free(dest->field_data1);
dest->field_data1 = NULL;
}
if (dest->field_data2 != NULL) {
BN_clear_free(dest->field_data2);
dest->field_data2 = NULL;
}
if (!ec_GFp_simple_group_copy(dest, src))
return 0;
@@ -126,8 +185,10 @@ int ec_GFp_mont_group_copy(EC_GROUP *dest, const EC_GROUP *src)
return 1;
err:
BN_MONT_CTX_free(dest->field_data1);
dest->field_data1 = NULL;
if (dest->field_data1 != NULL) {
BN_MONT_CTX_free(dest->field_data1);
dest->field_data1 = NULL;
}
return 0;
}
@@ -139,10 +200,14 @@ int ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p,
BIGNUM *one = NULL;
int ret = 0;
BN_MONT_CTX_free(group->field_data1);
group->field_data1 = NULL;
BN_free(group->field_data2);
group->field_data2 = NULL;
if (group->field_data1 != NULL) {
BN_MONT_CTX_free(group->field_data1);
group->field_data1 = NULL;
}
if (group->field_data2 != NULL) {
BN_free(group->field_data2);
group->field_data2 = NULL;
}
if (ctx == NULL) {
ctx = new_ctx = BN_CTX_new();
@@ -178,9 +243,12 @@ int ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p,
}
err:
BN_free(one);
BN_CTX_free(new_ctx);
BN_MONT_CTX_free(mont);
if (new_ctx != NULL)
BN_CTX_free(new_ctx);
if (mont != NULL)
BN_MONT_CTX_free(mont);
if (one != NULL)
BN_free(one);
return ret;
}