Methods and apparatus for the generation of a cryptographic one way function for use in encrypting or decrypting binary data. The hoses are connected between outlets of the inlet component and respective molding material inlets of the nozzles for conveying molding material from the inlet component to the nozzles. The method can further include storing in a record the first and second information and a third information comprising a location of the asset. The photonic device is coupled to the workpiece and to the output of the optical input.