System for data processing a security critical activity

Details System for data processing a security critical activity System for data processing a security critical activity

2007-10-30

2007-10-30

Revak, Christopher (Department: 2131)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C726S016000, C713S193000, C711S163000

Reexamination Certificate

active

09889126

ABSTRACT:
A system for data processing a security critical activity in a secure management mode in a computer, which comprises a processor (10), handling devices (20, 28-38), memory storage resources (14, 42). The system comprises a security device (50) comprising a processor (52) and signal generators (SGPM, SGA), a number of control switches (60), with signal receivers (SRA, SRPM) arranged respectively between the security device and the pre-selected resources. The switches contain information regarding accessibility to and from the resources, or parts of the resources, hereafter named resource ranges, wherein the switch controls requests from the computer processor to the resources or resource ranges depending on the information contained in the switch, and wherein, in response to a call from the computer processor or the handling devices, the switches are activated by receiving a signal (SGPM) from the security device, enabling the security device access to and from the resources or resource ranges selected by the security device, and denying the computer processor access to and from the resources or resource ranges selected by the security device.

REFERENCES:
patent: 4685056 (1987-08-01), Barnsdale, Jr. et al.
patent: 4937736 (1990-06-01), Chang et al.
patent: 5263147 (1993-11-01), Francisco et al.
patent: 5343524 (1994-08-01), Mu et al.
patent: 5406624 (1995-04-01), Tulpan
patent: 5432950 (1995-07-01), Sibigtroth
patent: 5434562 (1995-07-01), Reardon
patent: 5469556 (1995-11-01), Clifton
patent: 5491827 (1996-02-01), Holtey
patent: 5559993 (1996-09-01), Elliott et al.
patent: 5764761 (1998-06-01), Vicard
patent: 5765027 (1998-06-01), Wang et al.
patent: 5896499 (1999-04-01), McKelvey
patent: 6732272 (2004-05-01), Inoue et al.
patent: 7216362 (2007-05-01), Strongin et al.
patent: 0 171 456 (1986-02-01), None
Yeung et al. “MGS: A Multigrain Shared Memory System” 23rdAnnual International Symposium on Computer Architecture, May 1996, pp. 1-12.

Affiliated with

Also associated with

Rating

System for data processing a security critical activity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for data processing a security critical activity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for data processing a security critical activity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3834585