关键词: CA认证, 数据转发, 编解码, 用户身份识别, 数据安全

Abstract: The idea of establishing a safe and reliable video surveillance model is presented, and the user authentication model is based on CA authentication. The system is divided into the client module, the forwarding module, the CA authentication module, the video steam acquisition module and so on. In this paper, we introduced the function and implementation process of each module. The system verifies whether the user’s identity is legal based on CA authentication. If the user cannot pass CA authentication, he cannot capture the video image. A method to improve the existing video surveillance system is given at the same time, which CA authentication can be achieved without changing the existing camera terminal. The security and feasibility of the system are also analyzed in theory. This research not only has our understanding of the theory been improved, but also can be applied to a production environment.

Key words: CA authentication, data forwarding, encoding and decoding, user identification, data security