Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2006-09-12
2006-09-12
Barron, Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C713S167000
Reexamination Certificate
active
07107460
ABSTRACT:
An embedded security subsystem, and method for implementing the same, which provide secure controllability of a data security device within a data processing system. The embedded security subsystem of the present invention includes a persistent enable flag for providing control access to the data security device, wherein the persistent enable flag is accessible only in response to a power-on reset cycle of the data processing system. The persistent enable flag is read-only accessible to runtime program instructions. A pending state change flag that is write accessible by runtime program instructions is utilized for setting an intended next state of the persistent enable flag such that control access to the data security device is enabled only during a subsequent power-on reset of said data processing system.
REFERENCES:
patent: 5257387 (1993-10-01), Richek et al.
patent: 5559993 (1996-09-01), Elliott et al.
patent: 5574786 (1996-11-01), Dayan et al.
patent: 5692189 (1997-11-01), Lipe
patent: 5787019 (1998-07-01), Knight et al.
patent: 5826007 (1998-10-01), Sakaki et al.
patent: 5987542 (1999-11-01), Bang
patent: 6041395 (2000-03-01), Beelitz
Cromer Daryl Carvis
Elliott Scott Thomas
Hoff James Patrick
Locker Howard Jeffrey
Rivera David
Barron Gilberto
Dillon & Yudell LLP
Doudnikoff Gregory
Grosser George E.
International Business Machines - Corporation
LandOfFree
Method and system for securing enablement access to a data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for securing enablement access to a data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for securing enablement access to a data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3579165