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Mobile multimedia broadcast is a result of the development of the digital TV under the trend of network convergence. In this paper, according to the requirement of authentication and authorization, the particularities of mobile multimedia broadcast are analyzed. The problems of traditional conditional access and digital right management in mobile multimedia broadcast are shown. A new scheme of authentication...
P2P content sharing is often blamed for copyright infringement, making the establishment of content security technologies an urgent need. A PCP (P2P-based content protection) system is proposed in this paper. The system is based on a trust model that focuses on content security, rights management and access control in P2P network. Encryption, digital watermarking, and packaging technologies are adopted...
In broad TV network, the broadcasting will coexist with interactive services in a single set-top-box (STB) device and the traditional unidirectional conditional access system (CAS) in DVB can't be adapted to the variation. The dual-CAS is designed based on a double layer security scheme proposed in this paper to implement the authentication and access control, key updates between servers and STBs...
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