mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-12-25 15:25:27 +00:00
Fixes error and exit paths in rsa sample programs
This commit is contained in:
parent
bffa68d3ca
commit
4529c48c42
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@ -30,6 +30,9 @@
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#else
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#include <stdio.h>
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#define mbedtls_printf printf
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#define mbedtls_exit exit
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#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
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#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
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#endif
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#if defined(MBEDTLS_BIGNUM_C) && defined(MBEDTLS_RSA_C) && \
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@ -39,8 +42,8 @@
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#include "mbedtls/entropy.h"
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#include "mbedtls/ctr_drbg.h"
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#include <stdio.h>
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#include <string.h>
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#endif
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#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_RSA_C) || \
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@ -57,7 +60,7 @@ int main( void )
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int main( int argc, char *argv[] )
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{
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FILE *f;
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int ret, c;
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int return_val, exit_val, c;
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size_t i;
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mbedtls_rsa_context rsa;
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mbedtls_entropy_context entropy;
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@ -68,10 +71,7 @@ int main( int argc, char *argv[] )
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((void) argv);
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memset(result, 0, sizeof( result ) );
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mbedtls_ctr_drbg_init( &ctr_drbg );
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mbedtls_entropy_init( &entropy );
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mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
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ret = 1;
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exit_val = MBEDTLS_EXIT_SUCCESS;
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if( argc != 1 )
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{
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@ -81,17 +81,23 @@ int main( int argc, char *argv[] )
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mbedtls_printf( "\n" );
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#endif
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goto exit;
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mbedtls_exit( MBEDTLS_EXIT_FAILURE );
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}
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mbedtls_printf( "\n . Seeding the random number generator..." );
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fflush( stdout );
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if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
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(const unsigned char *) pers,
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strlen( pers ) ) ) != 0 )
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mbedtls_ctr_drbg_init( &ctr_drbg );
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mbedtls_entropy_init( &entropy );
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return_val = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
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&entropy, (const unsigned char *) pers,
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strlen( pers ) );
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if( return_val != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n",
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return_val );
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goto exit;
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}
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@ -100,21 +106,24 @@ int main( int argc, char *argv[] )
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if( ( f = fopen( "rsa_priv.txt", "rb" ) ) == NULL )
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{
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! Could not open rsa_priv.txt\n" \
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" ! Please run rsa_genkey first\n\n" );
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goto exit;
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}
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if( ( ret = mbedtls_mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.D , 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.P , 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.Q , 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.DP, 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.DQ, 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.QP, 16, f ) ) != 0 )
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if( ( return_val = mbedtls_mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.D , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.P , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.Q , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.DP, 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.DQ, 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.QP, 16, f ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_mpi_read_file returned %d\n\n", ret );
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! mbedtls_mpi_read_file returned %d\n\n",
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return_val );
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goto exit;
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}
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@ -125,10 +134,9 @@ int main( int argc, char *argv[] )
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/*
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* Extract the RSA encrypted value from the text file
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*/
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ret = 1;
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if( ( f = fopen( "result-enc.txt", "rb" ) ) == NULL )
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{
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( "\n ! Could not open %s\n\n", "result-enc.txt" );
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goto exit;
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}
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@ -143,6 +151,7 @@ int main( int argc, char *argv[] )
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if( i != rsa.len )
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{
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( "\n ! Invalid RSA signature format\n\n" );
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goto exit;
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}
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@ -153,11 +162,14 @@ int main( int argc, char *argv[] )
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mbedtls_printf( "\n . Decrypting the encrypted data" );
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fflush( stdout );
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if( ( ret = mbedtls_rsa_pkcs1_decrypt( &rsa, mbedtls_ctr_drbg_random, &ctr_drbg,
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MBEDTLS_RSA_PRIVATE, &i, buf, result,
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1024 ) ) != 0 )
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return_val = mbedtls_rsa_pkcs1_decrypt( &rsa, mbedtls_ctr_drbg_random,
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&ctr_drbg, MBEDTLS_RSA_PRIVATE, &i,
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buf, result, 1024 );
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if( return_val != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_rsa_pkcs1_decrypt returned %d\n\n", ret );
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! mbedtls_rsa_pkcs1_decrypt returned %d\n\n",
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return_val );
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goto exit;
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}
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@ -165,8 +177,6 @@ int main( int argc, char *argv[] )
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mbedtls_printf( "The decrypted result is: '%s'\n\n", result );
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ret = 0;
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exit:
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mbedtls_ctr_drbg_free( &ctr_drbg );
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mbedtls_entropy_free( &entropy );
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@ -177,6 +187,7 @@ exit:
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fflush( stdout ); getchar();
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#endif
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return( ret );
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return( exit_val );
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}
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#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_FS_IO */
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@ -31,6 +31,9 @@
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#include <stdio.h>
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#define mbedtls_fprintf fprintf
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#define mbedtls_printf printf
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#define mbedtls_exit exit
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#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
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#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
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#endif
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#if defined(MBEDTLS_BIGNUM_C) && defined(MBEDTLS_RSA_C) && \
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@ -40,7 +43,6 @@
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#include "mbedtls/entropy.h"
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#include "mbedtls/ctr_drbg.h"
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#include <stdio.h>
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#include <string.h>
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#endif
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@ -58,7 +60,7 @@ int main( void )
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int main( int argc, char *argv[] )
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{
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FILE *f;
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int ret;
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int return_val, exit_val;
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size_t i;
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mbedtls_rsa_context rsa;
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mbedtls_entropy_context entropy;
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@ -67,9 +69,7 @@ int main( int argc, char *argv[] )
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unsigned char buf[512];
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const char *pers = "rsa_encrypt";
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mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
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mbedtls_ctr_drbg_init( &ctr_drbg );
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ret = 1;
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exit_val = MBEDTLS_EXIT_SUCCESS;
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if( argc != 2 )
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{
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@ -79,18 +79,24 @@ int main( int argc, char *argv[] )
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mbedtls_printf( "\n" );
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#endif
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goto exit;
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mbedtls_exit( MBEDTLS_EXIT_FAILURE );
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}
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mbedtls_printf( "\n . Seeding the random number generator..." );
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fflush( stdout );
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mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
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mbedtls_ctr_drbg_init( &ctr_drbg );
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mbedtls_entropy_init( &entropy );
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if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
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(const unsigned char *) pers,
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strlen( pers ) ) ) != 0 )
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return_val = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
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&entropy, (const unsigned char *) pers,
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strlen( pers ) );
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if( return_val != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n",
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return_val );
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goto exit;
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}
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if( ( f = fopen( "rsa_pub.txt", "rb" ) ) == NULL )
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{
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ret = 1;
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! Could not open rsa_pub.txt\n" \
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" ! Please run rsa_genkey first\n\n" );
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goto exit;
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}
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if( ( ret = mbedtls_mpi_read_file( &rsa.N, 16, f ) ) != 0 ||
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( ret = mbedtls_mpi_read_file( &rsa.E, 16, f ) ) != 0 )
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if( ( return_val = mbedtls_mpi_read_file( &rsa.N, 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &rsa.E, 16, f ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_mpi_read_file returned %d\n\n", ret );
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! mbedtls_mpi_read_file returned %d\n\n",
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return_val );
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goto exit;
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}
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@ -118,6 +126,7 @@ int main( int argc, char *argv[] )
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if( strlen( argv[1] ) > 100 )
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{
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " Input data larger than 100 characters.\n\n" );
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goto exit;
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}
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@ -130,11 +139,14 @@ int main( int argc, char *argv[] )
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mbedtls_printf( "\n . Generating the RSA encrypted value" );
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fflush( stdout );
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if( ( ret = mbedtls_rsa_pkcs1_encrypt( &rsa, mbedtls_ctr_drbg_random, &ctr_drbg,
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MBEDTLS_RSA_PUBLIC, strlen( argv[1] ),
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input, buf ) ) != 0 )
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return_val = mbedtls_rsa_pkcs1_encrypt( &rsa, mbedtls_ctr_drbg_random,
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&ctr_drbg, MBEDTLS_RSA_PUBLIC,
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strlen( argv[1] ), input, buf );
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if( return_val != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_rsa_pkcs1_encrypt returned %d\n\n", ret );
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! mbedtls_rsa_pkcs1_encrypt returned %d\n\n",
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return_val );
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goto exit;
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}
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@ -143,7 +155,7 @@ int main( int argc, char *argv[] )
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*/
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if( ( f = fopen( "result-enc.txt", "wb+" ) ) == NULL )
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{
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ret = 1;
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exit_val = MBEDTLS_EXIT_FAILURE;
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mbedtls_printf( " failed\n ! Could not create %s\n\n", "result-enc.txt" );
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goto exit;
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}
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@ -166,7 +178,7 @@ exit:
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fflush( stdout ); getchar();
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#endif
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return( ret );
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return( exit_val );
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}
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#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_ENTROPY_C &&
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MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */
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