Patent · US Expired

Method for protecting a data memory

US7039815B1 · kind B1 · utility

18Cited by

2References

14Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Thomas Grassl · Freising, DE
Arvid Wiren · Birkenfeld, DE
Walter Straub · Olching, DE

Key dates

Filing date	Sep 29, 2000
Grant date	May 2, 2006
Priority date	—
Expiry date	Jul 28, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG06K19/07372
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for protecting a security data memory is described wherein external action on a component containing the security data memory is detected by sensors. Overshooting of a threshold on one of the sensors causes an attack to be signaled by reason of which the content of the security data memory is at least partly erased. The status of the sensors is permanently monitored and the status data of the sensors recorded.

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