Memory security device for flexible software environment

Details Memory security device for flexible software environment Memory security device for flexible software environment

2004-04-02

2009-11-24

Lanier, Benjamin E (Department: 2432)

Information security

Monitoring or scanning of software or data including attack...

C726S027000

Reexamination Certificate

active

07624442

ABSTRACT:
A semiconductor integrated circuit includes a processor for executing application code from a memory and a verifier processor arranged to receive the application code via the same internal bus as the processor. The verifier processor performs a verification function to check that the application code is authentic. The verifier processor runs autonomously and cannot be spoofed as it receives the application code via the same internal bus as the main processor. An additional instruction monitor checks the code instructions from the CPU and also impairs the operation of the circuit unless the address of code requested is in a given range. The code is in the form of a linked list and the range is derived as a linked list table during a first check.

REFERENCES:
patent: 6311273 (2001-10-01), Helbig, Sr. et al.
patent: 6430727 (2002-08-01), Warren
patent: 2003/0005277 (2003-01-01), Harding et al.
patent: 2003/0229777 (2003-12-01), Morais et al.
patent: 0 481 735 (1992-04-01), None
patent: WO 01/24012 (2001-04-01), None
patent: WO 01/61437 (2001-08-01), None

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