一种混沌密码序列的产生及其改进  

Generation and Improvement of a Chaotic Cipher Sequence

作　　者：袁新峰[1] 刘嘉勇[1] 张望[1] 冯新勇[1] 

机构地区：[1]四川大学电子信息学院,四川成都610064

出　　处：《电讯技术》2003年第2期87-90,共4页Telecommunication Engineering

摘　　要：尝试用数字滤波器产生混沌密码序列 ,针对已有算法和它的一些改进算法存在内部状态间具有较强相关性的问题 ,提出了一种新的改进方法 ,通过合理选择系数 。A kind of digital filter is used to generate chaotic cipher sequence. Then, a crucial fault of the method and its improved methods, a strong correlation between the internal states of the digital filters, is discussed. In order to overcome the fault, improved method is suggested which can generate some more pseudorandom chaotic cipher sequence by selecting proper coefficients.

关 键 词：保密通信 混池密码序列 数字滤波器 相关性 算法 混沌密码序列 

分 类 号：TN918[电子电信—通信与信息系统]