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Content and right packaging method

A content and logical operation technology, applied in the field of content rights encapsulation, can solve problems such as difficult backward compatibility, poor rights description efficiency, unfavorable authorization verification, etc., to improve authorization efficiency, simplify expression and implementation, and improve storage efficiency Effect

Active Publication Date: 2014-03-05
UNITEND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the main digital rights description language uses XML language description, the efficiency of rights description is poor; the expression is also complicated, which is not conducive to future authorization verification; in terms of version compatibility, it is difficult to achieve backward compatibility

Method used

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Embodiment Construction

[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] The TLV format is an efficient data structure with tags. This embodiment uses the TLV format descriptor to describe content rights, and describes the relationship between content, objects, and rights through logical operations, thereby realizing the description of content rights.

[0015] Content rights are described using TLV descriptors as follows, and the tags of each descriptor are uniformly labeled and cannot be repeated, such as figure 1 As shown, the definition is as follows:

[0016]

[0017]

[0018] The content rights description is composed of identification, length, version, number, content descriptor (Content_Descriptor), object descriptor (Object_Descriptor), rights descriptor (Rights_Descriptor), logical operation descr...

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Abstract

The invention provides a content and right packaging method. The relations between content, a right and an object are described and bound through a data structure with identification, and therefore description of the content and the right is achieved. The content and right packaging method has high interoperability, meanwhile, the content and the right can be flexibly defined, and the method has good expansibility. In addition, the content and the right are described through the binary system, and therefore the storage efficiency of the content and the right can be improved, occupied system resources are reduced, the method is suitable for hardware processing, and the method is a content and right description method which is simple, convenient to use, efficient, flexible and extensible.

Description

technical field [0001] The invention relates to the field of digital copyright management, in particular to a method for encapsulating content rights. Background technique [0002] The digital rights management system is mainly to realize the distribution of content rights from the authorization system to the terminal. The interoperability between the authorization system and the terminal of different standards and versions is a problem that the digital rights management system needs to solve. [0003] In order to improve the interoperability of the system and the terminal, the digital rights management system uses the digital rights description language (Digital Right Expression Language, DREL) to specify the permission set given to the user (and the intermediate entity, such as the publisher or library), and can Conditions and obligations of exercising these licenses. That is to say, the digital rights expression language accurately defines and describes who owns what rig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/10
CPCG06F21/10G06F2221/2141
Inventor 王兴军梁志坚梅红兵
Owner UNITEND TECH