Peripheral card security and configuration interface

Details Peripheral card security and configuration interface Peripheral card security and configuration interface

1997-04-29

1999-07-27

Beausoliel, Jr., Robert W.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

G06F 1100

Patent

active

059283629

ABSTRACT:
Authentication mechanism for interactive home entertainment systems using plug-in cards which do contain software as well as cards which do not contain software. A security bit stream is generated by circuitry on the card and checked by the base system while the system is operating, but only a single signal line of the interface is used for the bit stream. The card also includes a ROM which contains data to be downloaded to the base system. The ROM data is downloaded to the base system via the same signal line of the interface as the serial bit stream. The signal line is used for ROM data download while the base system asserts a "reset" signal, and is used to carry the serial bit stream for authentication purposes whenever the reset signal is negated.

REFERENCES:
patent: 5313520 (1994-05-01), Han
patent: 5327497 (1994-07-01), Mooney et al.
patent: 5537343 (1996-07-01), Kikinis et al.
patent: 5594227 (1997-01-01), Deo

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