Unauthorized contents detection system

Details Unauthorized contents detection system Unauthorized contents detection system

2007-07-26

2010-06-22

Chen, Shin-Hon (Department: 2431)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C380S251000, C380S259000, C713S179000, C713S180000, C713S181000

Reexamination Certificate

active

07743261

ABSTRACT:
An executing device conducts playback of contents. The executing device is equipped with a highly efficient processor and reduces the processing load involved in verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the executing device is capable of improving the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.

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