Patent ID: 6408390
Filing Date: 2002-06-18
Classification: G06F,G06Q,G06T,G07F,H04L,H04N

Abstract:
A data copyright management apparatus used with a user terminal for utilizing digital data:said data copyright management apparatus comprising a central processing unit, a central processing unit bus, read-only semiconductor memory, electrically erasable programmable read-only memory, and read/write memory; wherein: said central processing unit, said read-only semiconductor memory, said electrically erasable programmable read-only memory, and read/write memory are connected to said central processing unit bus, and a system bus of said user terminal is able to be connected to said central processing unit bus; a data copyright management system program, and user information are stored in said read-only semiconductor memory; a first public-key, a first private-key, a second-public key, a second private-key, a first secret-key, a second secret-key, a copyright management program, and copyright information are stored in said electrically erasable programmable read-only memory.