Tamper resistant module certification authority

Details Tamper resistant module certification authority Tamper resistant module certification authority

2007-10-26

2010-06-01

Smithers, Matthew B (Department: 2437)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S160000, C380S278000, C235S492000

Reexamination Certificate

active

07730312

ABSTRACT:
Methods and apparati for securely loading one or more computer software applications onto a tamper resistant module (TRM) (107) and for securely deleting one or more applications from the TRM. An embodiment of the invention comprises a method for determining, based at least upon an encrypted personalization data block, whether a TRM (107) is part of a qualified set of TRM's to accept loading of an application. Thereafter, the method provides for loading the application onto the TRM (107) only after the first step determines that the TRM (107) is qualified to accept the loading of the application. Another embodiment comprises a method for determining, based at least upon an encrypted personalization data block, whether a TRM (107) is part of a qualified set of TRM's to accept deleting of an application. Thereafter, the method provides for deleting the application from the TRM (107) only when the first step determines that the TRM (107) is qualified to accept the deleting of the application.

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