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Distributed digital rights management (DRM) system adopting 2-level framework

A digital copyright management and distributed technology, applied in the direction of broadcasting system control, user identity/authority verification, analog security/charging system, etc., can solve problems such as illegal use of the Internet, and achieve the effect of reducing service pressure and reducing requirements

Inactive Publication Date: 2009-06-03
百视通网络电视技术发展有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the characteristics that digital goods can be easily copied and redistributed without any qu

Method used

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  • Distributed digital rights management (DRM) system adopting 2-level framework
  • Distributed digital rights management (DRM) system adopting 2-level framework
  • Distributed digital rights management (DRM) system adopting 2-level framework

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] 1. Overall structure

[0026] exist figure 1 In the architecture, the distributed DRM system adopting the two-level architecture is mainly composed of the central DRM system, the regional node DRM system, the terminal and the DRM client, as well as the business operation support system, content management, distribution, storage and service system. The terminal and DRM client authenticate, request and obtain authorization from the regional node DRM system, and use the authorization information to program the obtained encrypted content and obtain the final service.

[0027] In the present invention, the encryption of the content is produced in the central DRM system, and the encrypted content is published to the content management, distribution, storage and service system, and finally served to the user. The content key and rights description are generated and m...

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Abstract

The invention relates to a distributed digital rights management (DRM) system adopting a 2-level framework, aiming at providing a DRM system which has 2-level framework with distributed authorization and service and supports large-scale content and numerous users. In the invention, intensive introduction, programming, encryption, authority definition, service definition of content are completed in the central level, then corresponding content key, authority and service definition are distributed to regional service nodes for distributed authorization and service. In the invention, flexible operation modes are fully supported, and the security of a database and the reliability of a system are ensured, so as to meet operation requirements of a carrier class. The system in the invention is especially applicable to the conditions that a large amount of content service, users and concurrent service existing in IPTV, internet video service and the like. The adoption of the 2-level distributed service can effectively distribute service and users to different nodes, thus reducing service pressure on each node and lowering requirements on system performance.

Description

technical field [0001] The invention belongs to the field of Internet and interactive television, relates to digital rights management (DRM, Digital Rights Management), content security protection, and especially relates to a DRM system supporting distributed services and a realization method thereof. Background technique [0002] In recent years, the rapid development of the Internet has strongly promoted the sales and services of digital goods, such as electronic versions of media content such as books, papers, music and videos. However, the feature that digital goods can be easily copied and redistributed without any quality damage makes the Internet a hotbed for illegal use and dissemination of copyrighted media content. Various companies are developing technology to prevent piracy. The digital rights management (DRM) industry has aroused people's high attention. [0003] The scope of DRM application is very wide. From digital music on the Internet, ring tones on mobi...

Claims

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Application Information

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IPC IPC(8): H04H60/23H04L9/32H04N7/16
Inventor 黎文黄胜明李怀宇张大钟
Owner 百视通网络电视技术发展有限责任公司
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