Patent · US Expired

Method of protecting a microcomputer system against manipulation of data stored in a storage assembly of the microcomputer system

US7213267B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Beuten · Schwieberdingen, DE
Klaus Schneider · Tiefenbronn, DE
Ralf Angerbauer · Heubach, DE
Bernd Illg · Eppingen, DE

Key dates

Filing date	May 13, 2002
Grant date	May 1, 2007
Priority date	—
Expiry date	Mar 1, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/109
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method of protecting a microcomputer system against manipulation of data stored in a storage assembly of the microcomputer system, particularly for protecting a program stored in the storage assembly, is described. In the method, the data is stored in marked or encrypted form in the storage assembly with the aid of an asymmetrical encryption method. In order to minimize the misuse of private keys which fall into the hands of unauthorized persons, a smart card protected by a personal identification number, on which the private key and an encryption algorithm for the asymmetrical encryption method are stored, is used for marking or encrypting the data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.