Patent ID: 6948071

Claim:
A method for one of activating and deactivating at least one part of data stored in a memory arrangement of a microcomputer system, comprising the steps of: one of encoding a microcomputer-individual identifier and storing a signature of the microcomputer-individual identifier in a specifiable memory area of the memory arrangement; one of checking the signature of the identifier and decoding the identifier when the microcomputer system is started up; and one of activating and deactivating the at least one part of the data as a function of a result of the one of the checking of the signature and the decoding of the identifier; wherein the one of the activating and the deactivating includes a switching of a control unit between a series case and an application case, and the switching is secured by using an asymmetric encryption process; and wherein the at least one part of the data includes at least a part of a program stored in the memory arrangement.