Optical disc for a master key, and a method and apparatus for op

Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique

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711162, 395186, 39518801, 380 3, 380 4, 235380, 360 60, G06F 1214, H04L 900

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active

058095454

ABSTRACT:
An optical disc for a key physically stores first security information. The optical disc logically stores second security information. The first security information is equal to security information physically recorded on a legitimate optical disc. The second security information is equal to security information logically recorded on the legitimate optical disc.

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