Patent ID: 7207066

Claim:
A method for protecting a microcomputer system from manipulation of data stored in a storage arrangement of the microcomputer system, the microcomputer system including a microcomputer allocated to the storage arrangement, comprising the steps of: causing the microcomputer to access the storage arrangement for processing the data; and before the storage arrangement is accessed, performing the steps of: assigning an individual identifier to one of the allocated microcomputer and the storage arrangement, generating a comparison code and storing the comparison code in the storage arrangement as a function of the individual identifier, and at a time that is one of before and during an operation of the microcomputer system, generating a security code as a function of the individual identifier and comparing the security code with the comparison code, wherein the allocated microcomputer accesses the storage arrangement only if the security code agrees with the comparison code, and wherein the allocated microcomputer is assigned only to the storage arrangement and the storage arrangement is assigned only to the allocated microcomputer so that the assigned, allocated microcomputer and the assigned storage arrangement can operate only with each other.