吉林大学学报（信息科学版）2007，Vol.25Issue(6)：625-633,9.
基于超混沌和扩展Cat映射的实时视频流加密算法
Real-Time Video Stream Encryption Algorithm Based on Hyperchaos and Extended Cat Map
摘要
Abstract
A real-time video stream encryption algorithm based on hyperchaos and extended cat map is proposed.A four-dimensional hyperchaotic system is used to generate stream cipher and the extended cat map is employed to construct block cipher. The video data are encrypted by the block cipher and the stream cipher, thereby significantly increasing the key space, the resistance to statistical and differential attacks and providing high key sensitivity, and fast encryption speed. The experimental tests carried out with detailed analysis, demonstrate that the proposed algorithm provides high security for real-time video stream with fast encryption speed, and is simple to realize by software. It is independent of any video compression algorithms, and it will not be limited by the format of encrypted video, which is one important merit of the proposed scheme compared with other video encryption systems.关键词
超混沌/视频流加密/Cat映射/块密码/流密码Key words
hyperchaos/ video stream encryption/ cat map/ block cipher/ stream cipher分类
信息技术与安全科学引用本文复制引用
殷虹,陈增强,张兴会,袁著祉..基于超混沌和扩展Cat映射的实时视频流加密算法[J].吉林大学学报（信息科学版）,2007,25(6):625-633,9.基金项目
国家自然科学基金资助项目(60374037,60574036) （60374037,60574036）
高等学校博士学科点专项基金资助项目(20050055013) （20050055013）
