@deftypefun {int} {gnutls_privkey_decrypt_data} (gnutls_privkey_t @var{key}, unsigned int @var{flags}, const gnutls_datum_t * @var{ciphertext}, gnutls_datum_t * @var{plaintext})
@var{key}: Holds the key

@var{flags}: zero for now

@var{ciphertext}: holds the data to be decrypted

@var{plaintext}: will contain the decrypted data, allocated with @code{gnutls_malloc()} 

This function will decrypt the given data using the algorithm
supported by the private key.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise a
negative error value.

@strong{Since:} 2.12.0
@end deftypefun