Method for protecting a data memory

Details Method for protecting a data memory Method for protecting a data memory

2006-05-02

2006-05-02

Barron, Jr., Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C713S164000

Reexamination Certificate

active

07039815

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.

REFERENCES:
patent: 4857912 (1989-08-01), Everett et al.
patent: 6308272 (2001-10-01), Pearce
patent: 227107 (1979-05-01), None

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