Electrical computers and digital processing systems: support – Data processing protection using cryptography
Reexamination Certificate
2005-05-10
2005-05-10
Darrow, Justin T. (Department: 2132)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
C713S002000, C713S179000, C709S222000
Reexamination Certificate
active
06892304
ABSTRACT:
In accordance with one aspect of the current invention, the system comprises a memory for storing instruction sequences by which the processor-based system is processed, where the memory includes a physical memory and a virtual memory. The system also comprises a processor for executing the stored instruction sequences. The stored instruction sequences include process acts to cause the processor to: map a plurality of predetermined instruction sequences from the physical memory to the virtual memory, determine an offset to one of the plurality of predetermined instruction sequences in the virtual memory, receive an instruction to execute the one of the plurality of predetermined instruction sequences, transfer control to the one of the plurality of predetermined instruction sequences, and process the one of the plurality of predetermined instruction sequences from the virtual memory. In accordance with another aspect of the present invention, the system includes an access driver to generate a service request to utilize BIOS services such that the service request contains a service request signature created using a private key in a cryptographic key pair. The system also includes an interface to verify the service request signature using a public key in the cryptographic key pair to ensure integrity of the service request.
REFERENCES:
patent: 4563737 (1986-01-01), Nakamura et al.
patent: 4742447 (1988-05-01), Duvall et al.
patent: 4868738 (1989-09-01), Kish et al.
patent: 4926322 (1990-05-01), Stimac et al.
patent: 4928237 (1990-05-01), Bealkowski et al.
patent: 5133058 (1992-07-01), Jensen
patent: 5193161 (1993-03-01), Bealkowski et al.
patent: 5212633 (1993-05-01), Franzmeier
patent: 5255379 (1993-10-01), Melo
patent: 5265252 (1993-11-01), Rawson et al.
patent: 5301287 (1994-04-01), Herrell et al.
patent: 5361340 (1994-11-01), Kelly et al.
patent: 5388242 (1995-02-01), Jewett
patent: 5459867 (1995-10-01), Adams et al.
patent: 5459869 (1995-10-01), Spilo
patent: 5675762 (1997-10-01), Bodin et al.
patent: 5696970 (1997-12-01), Sandage et al.
patent: 5758124 (1998-05-01), Ogata et al.
patent: 5844986 (1998-12-01), Davis
“Interface Synthesis for Embedded Applications in a CoDesign Environment,” BASU et al. IEEE 1997, p. 85-90.
Galasso Leonard J.
Phan Quang
Zilmer Matthew E.
Darrow Justin T.
Phoenix Technologies Ltd.
LandOfFree
System and method for securely utilizing basic input and... 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 and method for securely utilizing basic input and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for securely utilizing basic input and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3460761