The Design And Implementation Of Content Package Tools On Digital Rights Management

With the development of Internet and information technology, digital contents have become an important way of information expression. People get information from the Internet almost every day, use it and remake it. But there are few people know digital contents should be protected on intellectual property. Digital Rights Management (DRM) is a technology which can prevent digital contents from being piracy and illegal use in its limited life cycle. It incorporated data encryption, digital watermark, identity authentication, rights expression and access control. In order to protect its copyright, digital contents should be packaged, distributed and authorized to control its rational use.At present, researches about DRM mainly focus on technical standard and system structure. There are literatures which introduced some functions of rights management system on documents, streaming media, audios and videos. These articles briefly discussed the realization of the technology which includes data encryption, rights expression and access control. However, there is no standard about content packaging, and few literatures symbolically discussed the basic function and technology of content package, and no more details.According to this phenomenon that the research on content package of digital rights management only concentrated on function description and technology summarization, we did a more detailed study on content packaging of digital rights management in the paper. The paper mainly did the following work:(1) Investigate the theory about content packaging on digital rights management. Content packaging is the premise and basis of digital rights management. Technology of contents packaging refers on encryption, contents identification, identity authentication, digital signature, metadata, XML and so on.(2) Analyze and design the model and structure of content packaging. Based on the research of content packaging, we designed the information model of contents packaging, the structure of packaged files and data communication protocols.(3) Implement content package tools of digital rights management. According to the analyzing and designing, we implement the package tools that contain a single version package tool based on C/S architecture and an on-line package tool based on B/S architecture. Then we tested the tools’ function and performance.Compared with the similar research, the features of this paper embodied in the following aspects:(1) Analyzed the model of content packaging and put forward to a comprehensive information model. To set default rights in the process of packaging can support silence license release. While users could choose their own license rights if they need. So this style makes users a more flexibility and applicability in practical application.(2) The paper designed two kinds of package tool, they are single version package tool and online package tool, which are very convenient for users to publish their digital contents.