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Received:September 26, 2010 Revised:November 09, 2010
Received:September 26, 2010 Revised:November 09, 2010
中文摘要: 为了解决视频信息的安全问题，提出了一种基于视频编码标准H.264/AVC 的混沌视频加密算法。利用流密码加密简单、运算速度快等优点，采用Logistic 离散混沌序列对H.264/AVC 标准的CAVLC（基于上下文的自适应变长编码）熵编码阶段的码流进行加密，并从算法的安全性、加密效率等方面进行分析。试验结果表明：该加密算法在保证视频内容信息安全性的前提下，不改变码流的结构，具有良好的实时性和快速性。
中文关键词: 视频加密 Logistic 混沌序列 H.264/AVC 编码标准 CAVLC 熵编码
Abstract:In order to solve the problem of security of video information, a chaotic video encryption algorithm based on
H.264/AVC video coding standard is proposed. Because Stream cipher is simple, fast, etc., The proposed scheme uses
discrete chaotic sequence of Logistic to encrypt the stream of CAVLC (Context-based Adaptive Variable Length Coding)
entropy coding stage of H.264/AVC, and analyses the security and encryption efficiency of the algorithm. The results
showed that the video encryption algorithm ensures the security of information, does not change the structure of the
stream and the system has a good real-time and fast speed.
文章编号： 中图分类号： 文献标志码：
基金项目:国家自然科学基金(60971046)
引用文本：
金成杨,王光义.基于H.264 的混沌视频加密系统.计算机系统应用,2011,20(6):147-150
JIN Cheng-Yang,WANG Guang-Yi.Chaos Encryption System for Video Based on H.264.COMPUTER SYSTEMS APPLICATIONS,2011,20(6):147-150
金成杨,王光义.基于H.264 的混沌视频加密系统.计算机系统应用,2011,20(6):147-150
JIN Cheng-Yang,WANG Guang-Yi.Chaos Encryption System for Video Based on H.264.COMPUTER SYSTEMS APPLICATIONS,2011,20(6):147-150
