System and method to lock TPM always ‘on’...

Details System and method to lock TPM always ‘on’... System and method to lock TPM always ‘on’...

2008-04-15

2008-04-15

Moazzami, Nasser (Department: 2136)

Information security

Protection of hardware

C726S022000, C713S164000, C713S156000

Reexamination Certificate

active

11021021

ABSTRACT:
A computer may be secured from attack by including a trusted environment used to verify a known monitor. The monitor may be used to determine a state of the computer for compliance to a set of conditions. The conditions may relate to terms of use, such as credits available for pay-per-use, or that the computer is running certain software, such as virus protection, or that unauthorized peripherals are not attached, or that a required token is present. The monitor may send a signal directly or through the trusted environment to a watchdog circuit. The watchdog circuit disrupts the use of the computer when the signal is not received in a given timeout period.

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“TCG Specification Architecture Overview,” publication dated Apr. 28, 2004, 54 pages.

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