3abbcedc68
All sample and test programs had a definition of mbedtls_param_failed. This was necessary because we wanted to be able to build them in a configuration with MBEDTLS_CHECK_PARAMS set but without a definition of MBEDTLS_PARAM_FAILED. Now that we activate the sample definition of MBEDTLS_PARAM_FAILED in config.h when testing with MBEDTLS_CHECK_PARAMS set, this boilerplate code is no longer needed.
153 lines
4 KiB
C
153 lines
4 KiB
C
/*
|
|
* Public key-based signature verification program
|
|
*
|
|
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* 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)
|
|
*/
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_PLATFORM_C)
|
|
#include "mbedtls/platform.h"
|
|
#else
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#define mbedtls_snprintf snprintf
|
|
#define mbedtls_printf printf
|
|
#define mbedtls_exit exit
|
|
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
|
|
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
|
|
#endif /* MBEDTLS_PLATFORM_C */
|
|
|
|
#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_MD_C) || \
|
|
!defined(MBEDTLS_SHA256_C) || !defined(MBEDTLS_PK_PARSE_C) || \
|
|
!defined(MBEDTLS_FS_IO)
|
|
int main( void )
|
|
{
|
|
mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_MD_C and/or "
|
|
"MBEDTLS_SHA256_C and/or MBEDTLS_PK_PARSE_C and/or "
|
|
"MBEDTLS_FS_IO not defined.\n");
|
|
return( 0 );
|
|
}
|
|
#else
|
|
|
|
#include "mbedtls/error.h"
|
|
#include "mbedtls/md.h"
|
|
#include "mbedtls/pk.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
|
|
int main( int argc, char *argv[] )
|
|
{
|
|
FILE *f;
|
|
int ret = 1;
|
|
int exit_code = MBEDTLS_EXIT_FAILURE;
|
|
size_t i;
|
|
mbedtls_pk_context pk;
|
|
unsigned char hash[32];
|
|
unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
|
|
char filename[512];
|
|
|
|
mbedtls_pk_init( &pk );
|
|
|
|
if( argc != 3 )
|
|
{
|
|
mbedtls_printf( "usage: mbedtls_pk_verify <key_file> <filename>\n" );
|
|
|
|
#if defined(_WIN32)
|
|
mbedtls_printf( "\n" );
|
|
#endif
|
|
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( "\n . Reading public key from '%s'", argv[1] );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_pk_parse_public_keyfile( &pk, argv[1] ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_pk_parse_public_keyfile returned -0x%04x\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
/*
|
|
* Extract the signature from the file
|
|
*/
|
|
mbedtls_snprintf( filename, sizeof(filename), "%s.sig", argv[2] );
|
|
|
|
if( ( f = fopen( filename, "rb" ) ) == NULL )
|
|
{
|
|
mbedtls_printf( "\n ! Could not open %s\n\n", filename );
|
|
goto exit;
|
|
}
|
|
|
|
i = fread( buf, 1, sizeof(buf), f );
|
|
|
|
fclose( f );
|
|
|
|
/*
|
|
* Compute the SHA-256 hash of the input file and
|
|
* verify the signature
|
|
*/
|
|
mbedtls_printf( "\n . Verifying the SHA-256 signature" );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_md_file(
|
|
mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ),
|
|
argv[2], hash ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! Could not open or read %s\n\n", argv[2] );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = mbedtls_pk_verify( &pk, MBEDTLS_MD_SHA256, hash, 0,
|
|
buf, i ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_pk_verify returned -0x%04x\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( "\n . OK (the signature is valid)\n\n" );
|
|
|
|
exit_code = MBEDTLS_EXIT_SUCCESS;
|
|
|
|
exit:
|
|
mbedtls_pk_free( &pk );
|
|
|
|
#if defined(MBEDTLS_ERROR_C)
|
|
if( exit_code != MBEDTLS_EXIT_SUCCESS )
|
|
{
|
|
mbedtls_strerror( ret, (char *) buf, sizeof(buf) );
|
|
mbedtls_printf( " ! Last error was: %s\n", buf );
|
|
}
|
|
#endif
|
|
|
|
#if defined(_WIN32)
|
|
mbedtls_printf( " + Press Enter to exit this program.\n" );
|
|
fflush( stdout ); getchar();
|
|
#endif
|
|
|
|
return( exit_code );
|
|
}
|
|
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_SHA256_C &&
|
|
MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO */
|