Adapt rsa_decrypt example program to new RSA interface
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parent
40371ec783
commit
ccef18c2ff
1 changed files with 38 additions and 12 deletions
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@ -64,6 +64,7 @@ int main( int argc, char *argv[] )
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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_mpi N, P, Q, D, E, DP, DQ, QP;
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mbedtls_entropy_context entropy;
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mbedtls_ctr_drbg_context ctr_drbg;
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unsigned char result[1024];
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@ -91,6 +92,9 @@ int main( int argc, char *argv[] )
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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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mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
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mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );
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mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP );
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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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@ -114,14 +118,14 @@ int main( int argc, char *argv[] )
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goto exit;
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}
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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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if( ( return_val = mbedtls_mpi_read_file( &N , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &E , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &D , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &P , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &Q , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &DP , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &DQ , 16, f ) ) != 0 ||
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( return_val = mbedtls_mpi_read_file( &QP , 16, f ) ) != 0 )
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{
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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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@ -129,11 +133,31 @@ int main( int argc, char *argv[] )
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fclose( f );
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goto exit;
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}
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rsa.len = ( mbedtls_mpi_bitlen( &rsa.N ) + 7 ) >> 3;
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fclose( f );
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if( ( return_val = mbedtls_rsa_import( &rsa, &N, &P, &Q, &D, &E ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_rsa_import returned %d\n\n",
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return_val );
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goto exit;
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}
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if( ( return_val = mbedtls_rsa_complete( &rsa, mbedtls_ctr_drbg_random,
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&ctr_drbg ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_rsa_complete returned %d\n\n",
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return_val );
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goto exit;
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}
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/* Although we're not using them, verify CRT parameters */
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if( ( return_val = mbedtls_rsa_check_crt( &rsa, &DP, &DQ, &QP ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_rsa_check_crt returned %d\n\n",
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return_val );
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goto exit;
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}
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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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@ -184,6 +208,9 @@ exit:
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mbedtls_ctr_drbg_free( &ctr_drbg );
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mbedtls_entropy_free( &entropy );
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mbedtls_rsa_free( &rsa );
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mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
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mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP );
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mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP );
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#if defined(_WIN32)
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mbedtls_printf( " + Press Enter to exit this program.\n" );
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@ -193,4 +220,3 @@ exit:
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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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