Research Of Dynamic Security Certification Based On USB Key And Attribute Certificate

With the rapid development of information and communication industry, digital content editing, copying and distribution become more and more common, the issues of copyright infringement has tremendous impact of copyright protection, any service field involves digital content needs digital copyright protection. At present, copyright protection of digital content has become the core issue at information age, which has won strong attention of all walks of life.Digital Rights Management (DRM) technology controls the access of digital content in its life cycle. At present, many scholars have extensive research on DRM technology, however, with the development of research, we find that there still has safety weak link to be solved on DRM platform which integrates copyright protection and content authentication.According to the safety of DRM, this paper presents the dynamic security certification scheme including identity authentication, rights management and copyright tracking, protecting the digital content in the different phases of its life cycle, realizing the dynamic security. The discussion and research work of the dynamic security certification scheme mainly has:(1) analyzing the weak security of identity authentication, researching the advantages of the USB Key and PKI technology, then proposing a PKI identity authentication scheme based on the USB Key, and at the same time, describing on the authentication framework and explaining the authentication protocol in detail, in order to improve the safety and reliability of the identity authentication.(2) analyzing the shortage of rights management, studying the advantages of the attribute certificate and PMI technology, then proposing a PMI rights management scheme based on the attribute certificate, on the DRM platform different roles have different jurisdiction, realize the access control and prevent the offline spread.(3) analyzing the lack of copyright tracking, considering the digital watermarking technology, designing a reliable copyright tracking and detection scheme based on robust watermarking algorithm, in order to find responsibility of the illegal spread of copyright, and trace piracy.(4) the above three function of the dynamic security certification scheme dynamic for different safety problems, then apply to the DRM platform of our project, the purpose is to improve the DRM platform safety.As a part of national "863" project "network multimedia digital rights management and the authentication technology based on digital watermarking and mobile agents", this paper designs and develops the dynamic security system based on the USB Key and attribute certificate. And then adopts the results to the project of DRM platform, and realizes the safety license goal.