离散超混沌同步加密与流密码加密的比较研究  

Research on a Discrete-time Hyperchaos Synchronization Encryption and Stream Cipher Encryption

作　　者：吴敏[1] 丘水生[1] 

机构地区：[1]华南理工大学电信学院,广州510640

出　　处：《计算机工程与应用》2003年第25期42-45,共4页Computer Engineering and Applications

基　　金：国家自然科学基金资助项目(编号:69672022);教育部高校博士点专项基金资助项目(编号:00056107);广州市科技项目(编号:2002JE-C0341)

摘　　要：将离散混沌系统Dead-Beat同步方法应用于超混沌广义Henon映射,提出一种离散超混沌同步加密方案。该方案应用高复杂度的超混沌信号以增强载波信号的随机性,并利用了广义Henon映射Dead-Beat同步加密的复杂性。仿真结果显示:密文加密效果好,恢复图像与原图像差别很小。In this paper,the technologies of the discrete-time chaotic system's Dead-Beat synchronization are used in the chaotic generalized Henon map and a discrete-time hyperchaotic synchronization encrypted method is developed.The hyperchaotic signal is used to enhance the randomness of carrier and the complexity of generalized Henon map Dead-Beat synchronization encryption is used.The simulation shows that the ciphertext's encryption effect is well,and the recovered image is less different with the original image.

关 键 词：同步 超混沌 加密系统 

分 类 号：TN918[电子电信—通信与信息系统]