Electrical computers and digital processing systems: support – Multiple computer communication using cryptography
Reexamination Certificate
2005-10-18
2005-10-18
Smithers, Matthew (Department: 2137)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
C713S151000, C713S152000, C713S153000, C713S154000, C713S152000, C380S028000, C380S029000, C380S030000, C380S200000, C380S201000, C380S255000, C380S277000, C380S283000
Reexamination Certificate
active
06957329
ABSTRACT:
Methods and systems are provided for encrypting data from a plurality of multimedia devices. A driver initiates authentication for the plurality of multimedia applications. The driver assigns a key registers to each of the applications, based on available key registers. The applications use generated encryption key values to send data to be decrypted by their assigned key registers. The driver notifies video processing hardware of encryption seed keys to determine the generated encryption key values and hardware stores the value of corresponding decryption keys the assigned key registers. Each register can be used to exclusively decrypt data from an application of the plurality of applications. The driver directs the encrypted data from the applications to the video processing hardware. The video processing hardware decrypts the data and processes it into image data accordingly.
REFERENCES:
patent: 6236727 (2001-05-01), Ciacelli et al.
patent: 6480607 (2002-11-01), Kori et al.
Matthew, He, “Studies on Computer Security and Encryption”, 2001,polaris.nova.edu/MST/choices/matt.htm, pp. 1-18.
Aleksic Milivoje
Man Kenneth
Wong Daniel Wai-Him
Yang Ivan Wong-Yin
ATI Technologies Inc.
Fields Courtney
Smithers Matthew
Toler Larson & Abel, LLP
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