Storage medium and contents protection method using the...

Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection

Reexamination Certificate

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C713S189000, C713S192000

Reexamination Certificate

active

07137012

ABSTRACT:
A revocation list is registered a public ROM area. The revocation list designates at least one electronic device in which use of the storage medium by the designated electronic device is to be revoked. A controller receives from the electronic device which attempts to access, identification information indicative of the electronic device, and checks whether identification information corresponding to the received identification information is contained in the revocation list, thereby determining whether or not use of the storage medium by the electronic device which attempts to access should be revoked.

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