1. A method for producing a hardware device for executing at least one algorithm, wherein the hardware device corresponds to a realtime class, comprising: providing at least one algorithm in the style of a program code, the at least one algorithm having a prescribed maximum data length for an input parameter and being executed based on the at least one input parameter; determining a maximum execution time for the algorithm; fabricating a tamper-proof hardware device configured to execute the algorithm; and allocating the hardware device to a realtime class based on the determined maximum execution time.