摘要
提出一种利用超混沌系统将视频流压缩与加密过程相结合的加密新算法。利用超混沌系统迭代后产生的混沌伪随机序列,分别对各个帧中的DC系数、AC系数及运动矢量加密。仿真所得密文帧杂乱无序,与原始帧完全不同。算法分析表明,该算法不影响视频压缩效率,且能满足实时性和安全性,适合于通讯传输。
A new encryption algorithm which combined the process of video compressing with encryption based on hyper-chaos systemwas put forward.By iterating the hyper-chaotic system for certain times,the generated pseudorandom sequences were obtained to encrypt DC,AC and motion vector coefficients during the compressing of all frames.The simulation result shows that there is no rule among the ciphertextand are completely different from the original frame.Algorithm analyses indicate that it does not affect the compression efficiency and cansatisfy the real-time requirement and possess high safety,and is a suitable choice for practical applications.
出处
《信息技术与信息化》
2017年第4期89-92,共4页
Information Technology and Informatization
基金
海军大连舰艇学院科研发展基金资助项目
