@deftypefun {const char *} {gnutls_pkcs_schema_get_oid} (unsigned int @var{schema})
@var{schema}: Holds the PKCS @code{12}  or PBES2 schema (@code{gnutls_pkcs_encrypt_flags_t} )

This function will return the object identifier of the
PKCS12 or PBES2 schema.

@strong{Returns:} a constrant string or @code{NULL}  on error.

@strong{Since:} 3.4.0
@end deftypefun