Digital copyright protection method and management device thereof for digital video disc system

Abstract

A digital copyright protection method and a management device thereof for a digital video disc system relate to multimedia field. The management device is composed of an authorization management system, a replication business system and authorized playing equipment. The authorization management system is composed of a content protection authorization manager, a replication business authorization manager, a system safety data manager and a playing equipment authorization manager; the replication business system is composed of an authorization file manager, a making authorization manager and an encryption distribution manager; the playing equipment is composed of a playing authorization file manager, a legality authentication manager and a decryption playing manager. The invention adopts dual-key asymmetric encryption technique to build the digital copyright protection safety system for the digital video disc system, realizes the authorization management of the replication business system and meets the domestic tremendous HD content publishing and consumption demands; besides, the invention also has the advantages of safety, reliability and low operation cost.

Description

technical field [0001] The invention relates to the field of multimedia, in particular to a digital copyright protection method and a management device for a digital video disc system. Background technique [0002] With the rapid development of digitization and optical storage technology, the digital video disc system has gone through the DVD era, and with the maturity of Blu-ray video disc technology, it is about to enter the high-definition era represented by Blu-ray disc (BD) and HD DVD. However, the rampant piracy phenomenon that has been accompanied by the development of the digital video disc system still plagues content providers and content operators. In order to prevent legally published digital content from piracy and illegal use, it is an important control method to introduce digital copyright protection technology into the digital video disc system. [0003] The digital copyright protection technology of the digital video disk system belongs to the category of b...

AI Technical Summary

Problems solved by technology

[0012] (1) Information security issues: The technology adopted by AACS is completely controlled by foreign manufacturers, and it is directly applied to my country as a security technology, which is not in line with my country's national information security policy;

[0013] (2) Expenses: The patents and systems involved in AACS technology are completely controlled by foreigners, and the authorized use in my country requires expensive patent fees and management fees;

[0014] (3) Management limitation: In view of the national conditions of our country, the digital copyright technology of the digital video disc system needs to realize the authorization control of the playback equipment and the legal use of the authorized content, and also needs to realize the authorization management of the replicator system by technical means. Not involved in the AACS safety system

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