Tamper detection and secure power failure recovery circuit

Details Tamper detection and secure power failure recovery circuit Tamper detection and secure power failure recovery circuit

2007-04-17

2007-04-17

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Selective

Intelligence comparison for controlling

C713S179000, C713S185000, C235S375000, C235S382000

Reexamination Certificate

active

10265127

ABSTRACT:
A security system including a token and a host system. The token includes volatile random access memory for storing security data for use during a step of secure authentication, an interface for providing communication with a host system when coupled thereto, and a processor. The processor performs the steps of authenticating a host system and the token, providing secure information to the host system upon authentication therewith, and re-authenticating the host system and the token in response to receipt of the secure information after a reset of the token has occurred.

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