视频监控系统安全传输复合加密算法设计

Design of Compound Encryption Algorithm for Secure Transmission in Surveillance Video System

监控系统应用广泛,但其自身存在安全漏洞,需要修补和完善。以现有的硬件处理能力和网络架构,为保证视频传输和转储安全,且尽量控制码流生成时延与冗余度,在系统通信建立阶段,引入连续的身份验证算法实现前后端的可靠连接;在数据传输阶段利用改进高效的指数logistic混沌和RC6对称加密算法实现码流的安全传输。通过实验验证加密安全效果与码流加密的功效性,结果表明,复合加密手段可以在保证监控通信效率的前提下满足安全传输要求。

In view of extensive applications of surveillance video,it is necessary to take measures to repair and meliorate varieties of security loopholes immediately.With the current hardware processing capacity and network architecture,in order to ensure the security of video transmission and storage,and control the time delay and redundancy of code stream as far as possible,a continuous authentication algorithm is introduced to realize the reliable connection between the foreground and background terminals in the communication establishment stage.And then the efficiently improved exponential logistic chaos and RC6 symmetric encryption algorithm are used to realize the secure transmission of the code stream.Finally,the experiments verifies the efficiency of encryption security and stream encryption,and chooses reasonable configuration parameters.The results show that the security transmission can be fulfilled by the compound encryption algorithm on the premise of ensuring the efficiency of surveillance video communication.