Secure video card methods and systems

Details Secure video card methods and systems Secure video card methods and systems

2006-06-20

2006-06-20

Zand, Kambiz (Department: 2132)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S193000, C380S052000

Reexamination Certificate

active

07065651

ABSTRACT:
Methods and systems for protecting data that is intended for use and processed on video or graphics cards are described. In various embodiments, data that is intended for use by a video card can be encrypted such that any time the data is provided onto a bus (e.g. a PCI or AGP bus) between the video card and the computer system, the data is encrypted. For example, when data is moved from memory on the video card to the system's memory (e.g. when it is mapped to the system's physical memory) and vice versa, the data is in encrypted form and thus protected.

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