mirror of
https://github.com/yuzu-emu/mbedtls
synced 2024-11-25 15:28:58 +00:00
174 lines
4.8 KiB
C
174 lines
4.8 KiB
C
/*
|
|
* Public key-based signature creation 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>
|
|
#define mbedtls_snprintf snprintf
|
|
#define mbedtls_printf printf
|
|
#endif
|
|
|
|
#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) || \
|
|
!defined(MBEDTLS_SHA256_C) || !defined(MBEDTLS_MD_C) || \
|
|
!defined(MBEDTLS_PK_PARSE_C) || !defined(MBEDTLS_FS_IO) || \
|
|
!defined(MBEDTLS_CTR_DRBG_C)
|
|
int main( void )
|
|
{
|
|
mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or "
|
|
"MBEDTLS_SHA256_C and/or MBEDTLS_MD_C and/or "
|
|
"MBEDTLS_PK_PARSE_C and/or MBEDTLS_FS_IO and/or "
|
|
"MBEDTLS_CTR_DRBG_C not defined.\n");
|
|
return( 0 );
|
|
}
|
|
#else
|
|
|
|
#include "mbedtls/error.h"
|
|
#include "mbedtls/entropy.h"
|
|
#include "mbedtls/ctr_drbg.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;
|
|
mbedtls_pk_context pk;
|
|
mbedtls_entropy_context entropy;
|
|
mbedtls_ctr_drbg_context ctr_drbg;
|
|
unsigned char hash[32];
|
|
unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
|
|
char filename[512];
|
|
const char *pers = "mbedtls_pk_sign";
|
|
size_t olen = 0;
|
|
|
|
mbedtls_entropy_init( &entropy );
|
|
mbedtls_ctr_drbg_init( &ctr_drbg );
|
|
mbedtls_pk_init( &pk );
|
|
|
|
if( argc != 3 )
|
|
{
|
|
mbedtls_printf( "usage: mbedtls_pk_sign <key_file> <filename>\n" );
|
|
|
|
#if defined(_WIN32)
|
|
mbedtls_printf( "\n" );
|
|
#endif
|
|
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( "\n . Seeding the random number generator..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
|
|
(const unsigned char *) pers,
|
|
strlen( pers ) ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%04x\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( "\n . Reading private key from '%s'", argv[1] );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
|
|
{
|
|
ret = 1;
|
|
mbedtls_printf( " failed\n ! Could not open '%s'\n", argv[1] );
|
|
goto exit;
|
|
}
|
|
|
|
/*
|
|
* Compute the SHA-256 hash of the input file,
|
|
* then calculate the signature of the hash.
|
|
*/
|
|
mbedtls_printf( "\n . Generating 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_sign( &pk, MBEDTLS_MD_SHA256, hash, 0, buf, &olen,
|
|
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_pk_sign returned -0x%04x\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
/*
|
|
* Write the signature into <filename>.sig
|
|
*/
|
|
mbedtls_snprintf( filename, sizeof(filename), "%s.sig", argv[2] );
|
|
|
|
if( ( f = fopen( filename, "wb+" ) ) == NULL )
|
|
{
|
|
ret = 1;
|
|
mbedtls_printf( " failed\n ! Could not create %s\n\n", filename );
|
|
goto exit;
|
|
}
|
|
|
|
if( fwrite( buf, 1, olen, f ) != olen )
|
|
{
|
|
mbedtls_printf( "failed\n ! fwrite failed\n\n" );
|
|
goto exit;
|
|
}
|
|
|
|
fclose( f );
|
|
|
|
mbedtls_printf( "\n . Done (created \"%s\")\n\n", filename );
|
|
|
|
exit:
|
|
mbedtls_pk_free( &pk );
|
|
mbedtls_ctr_drbg_free( &ctr_drbg );
|
|
mbedtls_entropy_free( &entropy );
|
|
|
|
#if defined(MBEDTLS_ERROR_C)
|
|
if( ret != 0 )
|
|
{
|
|
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( ret );
|
|
}
|
|
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C &&
|
|
MBEDTLS_SHA256_C && MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO &&
|
|
MBEDTLS_CTR_DRBG_C */
|