基于H.265的双重混沌视频加密算法的设计与实现

Design and implementation of dual chaos video encryption algorithm based on H.265

随着网络技术的快速发展,视频信息安全技术越发受到人们的关注,视频加密问题也正逐渐成为当今社会研究的重点领域。文章设计了一种基于H.265编码标准的视频加密方法,解决现今许多视频加密技术存在的安全性和实时性不平衡的问题。采用混沌猫映射算法对视频的U帧、V帧进行加解密,通过Logistic混沌映射算法对Y帧进行加解密,两种算法相结合不但解决了低维混沌序列保密性不够和高维混沌系统加密速率慢的缺点,而且提高了安全性和实时性。

With the rapid development of network technology,people pay more and more attention to video information security technology,and video encryption is gradually becoming the focus of social research.In this paper,a video encryption method based on H.265 encoding standard is designed to solve the imbalance of security and real-time in many video encryption technologies.Chaotic cat mapping algorithm is used to encrypt and decrypt U frame and V frame of video,and Logistic chaotic mapping algorithm is used to encrypt and decrypt Y frame.The combination of the two algorithms solves the problems of lowdimensional chaotic sequence security and low-speed encryption of high-dimensional chaotic system,and improves the security and real-time performance.