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Adapt rsa_genkey example program to use new RSA interface

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This commit is contained in:
Hanno Becker 2017-08-23 07:42:28 +01:00
parent 0c2639386e
commit f073de0c25
1 changed files with 26 additions and 11 deletions
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37
programs/pkey/rsa_genkey.c
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@ -65,6 +65,7 @@ int main( void )
mbedtls_rsa_context rsa; mbedtls_rsa_context rsa;
mbedtls_entropy_context entropy; mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg; mbedtls_ctr_drbg_context ctr_drbg;
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
FILE *fpub = NULL; FILE *fpub = NULL;
FILE *fpriv = NULL; FILE *fpriv = NULL;
const char *pers = "rsa_genkey"; const char *pers = "rsa_genkey";
@ -87,9 +88,12 @@ int main( void )
fflush( stdout ); fflush( stdout );
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 ); 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 );
if( ( ret = mbedtls_rsa_gen_key( &rsa, mbedtls_ctr_drbg_random, &ctr_drbg, KEY_SIZE, if( ( ret = mbedtls_rsa_gen_key( &rsa, mbedtls_ctr_drbg_random, &ctr_drbg, KEY_SIZE,
EXPONENT ) ) != 0 ) EXPONENT ) ) != 0 )
{ {
mbedtls_printf( " failed\n ! mbedtls_rsa_gen_key returned %d\n\n", ret ); mbedtls_printf( " failed\n ! mbedtls_rsa_gen_key returned %d\n\n", ret );
goto exit; goto exit;
@ -98,6 +102,14 @@ int main( void )
mbedtls_printf( " ok\n . Exporting the public key in rsa_pub.txt...." ); mbedtls_printf( " ok\n . Exporting the public key in rsa_pub.txt...." );
fflush( stdout ); 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" );
ret = 1;
goto exit;
}
if( ( fpub = fopen( "rsa_pub.txt", "wb+" ) ) == NULL ) if( ( fpub = fopen( "rsa_pub.txt", "wb+" ) ) == NULL )
{ {
mbedtls_printf( " failed\n ! could not open rsa_pub.txt for writing\n\n" ); mbedtls_printf( " failed\n ! could not open rsa_pub.txt for writing\n\n" );
@ -105,8 +117,8 @@ int main( void )
goto exit; goto exit;
} }
if( ( ret = mbedtls_mpi_write_file( "N = ", &rsa.N, 16, fpub ) ) != 0 || if( ( ret = mbedtls_mpi_write_file( "N = ", &N, 16, fpub ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "E = ", &rsa.E, 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 ); mbedtls_printf( " failed\n ! mbedtls_mpi_write_file returned %d\n\n", ret );
goto exit; goto exit;
@ -122,14 +134,14 @@ int main( void )
goto exit; goto exit;
} }
if( ( ret = mbedtls_mpi_write_file( "N = " , &rsa.N , 16, fpriv ) ) != 0 || if( ( ret = mbedtls_mpi_write_file( "N = " , &N , 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "E = " , &rsa.E , 16, fpriv ) ) != 0 || ( ret = mbedtls_mpi_write_file( "E = " , &E , 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "D = " , &rsa.D , 16, fpriv ) ) != 0 || ( ret = mbedtls_mpi_write_file( "D = " , &D , 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "P = " , &rsa.P , 16, fpriv ) ) != 0 || ( ret = mbedtls_mpi_write_file( "P = " , &P , 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "Q = " , &rsa.Q , 16, fpriv ) ) != 0 || ( ret = mbedtls_mpi_write_file( "Q = " , &Q , 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "DP = ", &rsa.DP, 16, fpriv ) ) != 0 || ( ret = mbedtls_mpi_write_file( "DP = ", &DP, 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "DQ = ", &rsa.DQ, 16, fpriv ) ) != 0 || ( ret = mbedtls_mpi_write_file( "DQ = ", &DQ, 16, fpriv ) ) != 0 ||
( ret = mbedtls_mpi_write_file( "QP = ", &rsa.QP, 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 ); mbedtls_printf( " failed\n ! mbedtls_mpi_write_file returned %d\n\n", ret );
goto exit; goto exit;
@ -157,6 +169,9 @@ exit:
if( fpriv != NULL ) if( fpriv != NULL )
fclose( fpriv ); 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_rsa_free( &rsa );
mbedtls_ctr_drbg_free( &ctr_drbg ); mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy ); mbedtls_entropy_free( &entropy );