78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
#define MBEDTLS_ALLOW_PRIVATE_ACCESS
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include "mbedtls/pk.h"
|
|
|
|
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
|
|
#ifdef MBEDTLS_PK_PARSE_C
|
|
int ret;
|
|
mbedtls_pk_context pk;
|
|
|
|
mbedtls_pk_init( &pk );
|
|
ret = mbedtls_pk_parse_public_key( &pk, Data, Size );
|
|
if (ret == 0) {
|
|
#if defined(MBEDTLS_RSA_C)
|
|
if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_RSA )
|
|
{
|
|
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
|
|
mbedtls_rsa_context *rsa;
|
|
|
|
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 );
|
|
|
|
rsa = mbedtls_pk_rsa( pk );
|
|
if ( mbedtls_rsa_export( rsa, &N, NULL, NULL, NULL, &E ) != 0 ) {
|
|
abort();
|
|
}
|
|
if ( mbedtls_rsa_export( rsa, &N, &P, &Q, &D, &E ) != MBEDTLS_ERR_RSA_BAD_INPUT_DATA ) {
|
|
abort();
|
|
}
|
|
if ( mbedtls_rsa_export_crt( rsa, &DP, &DQ, &QP ) != MBEDTLS_ERR_RSA_BAD_INPUT_DATA ) {
|
|
abort();
|
|
}
|
|
|
|
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 );
|
|
|
|
}
|
|
else
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_C)
|
|
if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_ECKEY ||
|
|
mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_ECKEY_DH )
|
|
{
|
|
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( pk );
|
|
mbedtls_ecp_group_id grp_id = ecp->grp.id;
|
|
const mbedtls_ecp_curve_info *curve_info =
|
|
mbedtls_ecp_curve_info_from_grp_id( grp_id );
|
|
|
|
/* If the curve is not supported, the key should not have been
|
|
* accepted. */
|
|
if( curve_info == NULL )
|
|
abort( );
|
|
|
|
/* It's a public key, so the private value should not have
|
|
* been changed from its initialization to 0. */
|
|
if( mbedtls_mpi_cmp_int( &ecp->d, 0 ) != 0 )
|
|
abort( );
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
/* The key is valid but is not of a supported type.
|
|
* This should not happen. */
|
|
abort( );
|
|
}
|
|
}
|
|
mbedtls_pk_free( &pk );
|
|
#else
|
|
(void) Data;
|
|
(void) Size;
|
|
#endif //MBEDTLS_PK_PARSE_C
|
|
|
|
return 0;
|
|
}
|