一种混沌密码序列的产生

A Method to Generate Chaotic Cipher Sequences

基于数字滤波器结构产生混沌密码序列 ,通过对输出序列状态空间的分析 ,应用非线性转移函数来改善输出序列的周期特性。结果表明 :输出序列的周期及序列相关特性有很大改善 ,可以满足密码序列的要求。此结构简单 ,便于数字电路实现。

Chaotic cipher sequences are generated based on the structure of digital filters. We propose a method to improve the period property by employing nonlinear transfer function. Simulation results show that the period and correlation property has been improved. Moreover, the structure can be implemented using digital circuit, which is easy to be applied in digital communicatoin.