Method for activating or deactivating data stored in a...

Details Method for activating or deactivating data stored in a... Method for activating or deactivating data stored in a...

2005-09-20

2005-09-20

Sheikh, Ayaz (Department: 2136)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S152000

Reexamination Certificate

active

06948071

ABSTRACT:
A method is for activating or deactivating at least one part of data stored in a memory arrangement of a microcomputer system, in particular one part of a program stored there. In the event of a manipulation of data stored in the memory arrangement by unauthorized third parties, a method having the following method steps may prevent utilization of the manipulated data reliably and effectively:a microcomputer-individual identifier is stored in a signed or encoded fashion a specifiable memory area of the memory arrangement;when the microcomputer system is started up, the signature of the identifier is checked or the identifier is decoded; andas a function of the result of the identifier, one part of the data is activated or deactivated.

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