Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Patent
1996-05-31
1998-09-01
Chan, Eddie P.
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
711102, 711103, 39518312, 39518314, 39518321, 395652, 395633, G06F 1214, G06F 1216, G06F 1130
Patent
active
058025928
ABSTRACT:
A system and method for verifying the integrity of a computer system's BIOS programs stored in alterable read only memory (such as FLASH ROM), and preventing malicious alteration thereof. The system and method regularly check the contents of the alterable read only memory using a digital signature encrypted by means of an asymmetrical key cryptosystem.
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Chess David M.
Sorkin Gregory Bret
White Steve Richard
Bragdon Reginald G.
Chan Eddie P.
International Business Machines - Corporation
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