Processing system security

Details Processing system security Processing system security

1996-12-31

1999-06-15

Lall, Parshotam S.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

713201, 39520079, 34082531, 34082532, 34082534, G06F 1214

Patent

active

059117788

ABSTRACT:
For controlling access to a system resource in a processing system, reprogrammable logic located between a bus and the resource is programmed in a first mode to permit access to the resource and is programmed in a second mode to at least restrict access to said resource via the bus. The resource can be a critical area of storage holding or identifying critical operational parameters or critical operational software relating to the processing system. The reprogrammable logic is preferably implemented using a field programmable gate array.

REFERENCES:
patent: 5018096 (1991-05-01), Aoyama
patent: 5297200 (1994-03-01), Murray
patent: 5355414 (1994-10-01), Hale
patent: 5434562 (1995-07-01), Reardon
patent: 5483649 (1996-01-01), Kuznetsov et al.
patent: 5535409 (1996-07-01), Larvoire et al.
patent: 5557742 (1996-09-01), Smaha
patent: 5640107 (1997-06-01), Kruse
patent: 5742760 (1998-04-01), Picazo, Jr. et al.

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