Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2005-06-17
2010-06-08
Kim, Jung (Department: 2432)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C711S173000, C713S164000
Reexamination Certificate
active
07734933
ABSTRACT:
The present invention is directed to a system for providing a trusted environment for untrusted computing systems. The system may include a HAC subsystem managing shared resources and a trusted bus switch for controlling a COTS processor to access the shared resources. The shared resources such as memory and several I/O resources reside on the trusted side of the trusted bus switch. Alternatively, the system may include a SCM as an add-on module to an untrusted host environment. Only authenticated applications including COTS OS execute on the SCM while untrusted applications execute on the untrusted host environment. The SCM may control secure resource access from the untrusted host through a plug-in module interface. All secure resources may be maintained on the trusted side of the plug-in module interface.
REFERENCES:
patent: 6836548 (2004-12-01), Anderson et al.
patent: 7194623 (2007-03-01), Proudler et al.
patent: 2004/0044902 (2004-03-01), Luthi
patent: 2005/0246521 (2005-11-01), Bade et al.
Alves-Foss et al., “A Multi-Layered Approach to Security in High Assurance Systems” IEEE, 2004, pp. 1-10.
Hardin David S.
Kamin, III Raymond A.
Koenck Steven E.
Marek James A.
Mass Allen P.
Barbieri Daniel M.
Evans Matthew J.
Kim Jung
Lemma Samson B
Rockwell Collins, Inc.
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