Data processing apparatus, program, and method for testing a...

Details Data processing apparatus, program, and method for testing a... Data processing apparatus, program, and method for testing a...

2007-09-11

2007-09-11

Wachsman, Hal (Department: 2857)

Data processing: measuring, calibrating, or testing

Testing system

Of circuit

C702S123000, C713S194000, C714S030000, C714S733000

Reexamination Certificate

active

11289710

ABSTRACT:
A data processing apparatus that tests whether a secure circuit is normal or not while maintaining confidentiality of the secured circuit is provided: wherein the secured circuit conducts a self-diagnostic test thereof in accordance with a self-diagnostic test start instruction signal from a CPU, and the secured circuit outputs a self-diagnostic test result signal indicating whether the secured circuit is normal or not to the CPU.

REFERENCES:
patent: 2002/0133773 (2002-09-01), Richter et al.
patent: 2003/0145261 (2003-07-01), Tanizaki
patent: 2004/0034823 (2004-02-01), Watkins et al.
patent: 2004/0236961 (2004-11-01), Walmsley
patent: 2005/0289355 (2005-12-01), Kitariev et al.

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