Apparatus and method for a programmable security processor

Details Apparatus and method for a programmable security processor Apparatus and method for a programmable security processor

2006-07-04

2006-07-04

Smithers, Matthew (Department: 2137)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S164000, C713S173000, C713S174000, C713S152000, C380S044000, C380S200000

Reexamination Certificate

active

07073069

ABSTRACT:
A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.

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