Independent computer module system

Details Independent computer module system Independent computer module system

G - Physics

06

F

354/235

G06F 12/14 (2006.01) G06F 3/00 (2006.01) G06F 13/00 (2006.01) G06F 21/00 (2006.01) G06K 7/10 (2006.01)

Patent

CA 1340351

A portable secure computer architecture, apparatus, and method for protecting information and at least one program for controlling that information is disclosed comprising: a computer protected inside of a single sealed cartridge, the computer having a CPU, Memory, and a communications means for communicating with a host computeroutside of the cartridge. All internal information and external communications are exclusively controlled by the internal program. Provision is also made for running a second program inside the architecture, while protecting secure information from that second program. Secure information is placed in a bank switched subdivision of memory. The subdivision is switched off by the information controlling program before the second program is permitted to run. Reactivating the protected subdivision causes a simultaneous non-maskable interrupt halting the second program and transferring control back to the first program.

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