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Diffstat (limited to 'thirdparty/mbedtls/library/ecdsa.c')
-rw-r--r--thirdparty/mbedtls/library/ecdsa.c36
1 files changed, 31 insertions, 5 deletions
diff --git a/thirdparty/mbedtls/library/ecdsa.c b/thirdparty/mbedtls/library/ecdsa.c
index 2b4800642d..da8df9cde2 100644
--- a/thirdparty/mbedtls/library/ecdsa.c
+++ b/thirdparty/mbedtls/library/ecdsa.c
@@ -1,8 +1,14 @@
/*
* Elliptic curve DSA
*
- * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- * SPDX-License-Identifier: Apache-2.0
+ * Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ *
+ * This file is provided under the Apache License 2.0, or the
+ * GNU General Public License v2.0 or later.
+ *
+ * **********
+ * Apache License 2.0:
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
@@ -16,7 +22,26 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*
- * This file is part of mbed TLS (https://tls.mbed.org)
+ * **********
+ *
+ * **********
+ * GNU General Public License v2.0 or later:
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * **********
*/
/*
@@ -297,7 +322,7 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
*p_sign_tries = 0;
do
{
- if( *p_sign_tries++ > 10 )
+ if( (*p_sign_tries)++ > 10 )
{
ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
goto cleanup;
@@ -310,7 +335,7 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
*p_key_tries = 0;
do
{
- if( *p_key_tries++ > 10 )
+ if( (*p_key_tries)++ > 10 )
{
ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
goto cleanup;
@@ -363,6 +388,7 @@ modn:
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &e, &e, s ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &e, &e, &t ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( pk, pk, &t ) );
+ MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( pk, pk, &grp->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( s, pk, &grp->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, s, &e ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( s, s, &grp->N ) );