3ef6a6dc5c
The previous prototype gave warnings are the strings produced by #cond and
__FILE__ are const, so we shouldn't implicitly cast them to non-const.
While at it modifying most example programs:
- include the header that has the function declaration, so that the definition
can be checked to match by the compiler
- fix whitespace
- make it work even if PLATFORM_C is not defined:
- CHECK_PARAMS is not documented as depending on PLATFORM_C and there is
no reason why it should
- so, remove the corresponding #if defined in each program...
- and add missing #defines for mbedtls_exit when needed
The result has been tested (make all test with -Werror) with the following
configurations:
- full with CHECK_PARAMS with PLATFORM_C
- full with CHECK_PARAMS without PLATFORM_C
- full without CHECK_PARAMS without PLATFORM_C
- full without CHECK_PARAMS with PLATFORM_C
Additionally, it has been manually tested that adding
mbedtls_aes_init( NULL );
near the normal call to mbedtls_aes_init() in programs/aes/aescrypt2.c has the
expected effect when running the program.
203 lines
6.8 KiB
C
203 lines
6.8 KiB
C
/*
|
|
* Example RSA key generation 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_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_ENTROPY_C) && \
|
|
defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME) && \
|
|
defined(MBEDTLS_FS_IO) && defined(MBEDTLS_CTR_DRBG_C)
|
|
#include "mbedtls/entropy.h"
|
|
#include "mbedtls/ctr_drbg.h"
|
|
#include "mbedtls/bignum.h"
|
|
#include "mbedtls/x509.h"
|
|
#include "mbedtls/rsa.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#define KEY_SIZE 2048
|
|
#define EXPONENT 65537
|
|
|
|
#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) || \
|
|
!defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_GENPRIME) || \
|
|
!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_RSA_C and/or MBEDTLS_GENPRIME and/or "
|
|
"MBEDTLS_FS_IO and/or MBEDTLS_CTR_DRBG_C not defined.\n");
|
|
return( 0 );
|
|
}
|
|
#else
|
|
|
|
#if defined(MBEDTLS_CHECK_PARAMS)
|
|
#include "mbedtls/platform_util.h"
|
|
void mbedtls_param_failed( const char *failure_condition,
|
|
const char *file,
|
|
int line )
|
|
{
|
|
mbedtls_printf( "%s:%i: Input param failed - %s\n",
|
|
file, line, failure_condition );
|
|
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
|
|
}
|
|
#endif
|
|
|
|
int main( void )
|
|
{
|
|
int ret = 1;
|
|
int exit_code = MBEDTLS_EXIT_FAILURE;
|
|
mbedtls_rsa_context rsa;
|
|
mbedtls_entropy_context entropy;
|
|
mbedtls_ctr_drbg_context ctr_drbg;
|
|
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
|
|
FILE *fpub = NULL;
|
|
FILE *fpriv = NULL;
|
|
const char *pers = "rsa_genkey";
|
|
|
|
mbedtls_ctr_drbg_init( &ctr_drbg );
|
|
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
|
|
mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
|
|
mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );
|
|
mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP );
|
|
|
|
mbedtls_printf( "\n . Seeding the random number generator..." );
|
|
fflush( stdout );
|
|
|
|
mbedtls_entropy_init( &entropy );
|
|
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 %d\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n . Generating the RSA key [ %d-bit ]...", KEY_SIZE );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_rsa_gen_key( &rsa, mbedtls_ctr_drbg_random, &ctr_drbg, KEY_SIZE,
|
|
EXPONENT ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_rsa_gen_key returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n . Exporting the public key in rsa_pub.txt...." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_rsa_export ( &rsa, &N, &P, &Q, &D, &E ) ) != 0 ||
|
|
( ret = mbedtls_rsa_export_crt( &rsa, &DP, &DQ, &QP ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( fpub = fopen( "rsa_pub.txt", "wb+" ) ) == NULL )
|
|
{
|
|
mbedtls_printf( " failed\n ! could not open rsa_pub.txt for writing\n\n" );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = mbedtls_mpi_write_file( "N = ", &N, 16, fpub ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "E = ", &E, 16, fpub ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_mpi_write_file returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n . Exporting the private key in rsa_priv.txt..." );
|
|
fflush( stdout );
|
|
|
|
if( ( fpriv = fopen( "rsa_priv.txt", "wb+" ) ) == NULL )
|
|
{
|
|
mbedtls_printf( " failed\n ! could not open rsa_priv.txt for writing\n" );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = mbedtls_mpi_write_file( "N = " , &N , 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "E = " , &E , 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "D = " , &D , 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "P = " , &P , 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "Q = " , &Q , 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "DP = ", &DP, 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "DQ = ", &DQ, 16, fpriv ) ) != 0 ||
|
|
( ret = mbedtls_mpi_write_file( "QP = ", &QP, 16, fpriv ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_mpi_write_file returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
/*
|
|
mbedtls_printf( " ok\n . Generating the certificate..." );
|
|
|
|
x509write_init_raw( &cert );
|
|
x509write_add_pubkey( &cert, &rsa );
|
|
x509write_add_subject( &cert, "CN='localhost'" );
|
|
x509write_add_validity( &cert, "2007-09-06 17:00:32",
|
|
"2010-09-06 17:00:32" );
|
|
x509write_create_selfsign( &cert, &rsa );
|
|
x509write_crtfile( &cert, "cert.der", X509_OUTPUT_DER );
|
|
x509write_crtfile( &cert, "cert.pem", X509_OUTPUT_PEM );
|
|
x509write_free_raw( &cert );
|
|
*/
|
|
mbedtls_printf( " ok\n\n" );
|
|
|
|
exit_code = MBEDTLS_EXIT_SUCCESS;
|
|
|
|
exit:
|
|
|
|
if( fpub != NULL )
|
|
fclose( fpub );
|
|
|
|
if( fpriv != NULL )
|
|
fclose( fpriv );
|
|
|
|
mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
|
|
mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP );
|
|
mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP );
|
|
mbedtls_rsa_free( &rsa );
|
|
mbedtls_ctr_drbg_free( &ctr_drbg );
|
|
mbedtls_entropy_free( &entropy );
|
|
|
|
#if defined(_WIN32)
|
|
mbedtls_printf( " Press Enter to exit this program.\n" );
|
|
fflush( stdout ); getchar();
|
|
#endif
|
|
|
|
return( exit_code );
|
|
}
|
|
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_RSA_C &&
|
|
MBEDTLS_GENPRIME && MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */
|