混沌伪随机序列生成算法研究

Chaotic Pseudo-random Sequence Generation Algorithm

对常见的一维Logistic混沌系统的伪随机序列的产生方法原理进行了研究，然后采用NISTSP800—22测试标准对几种典型的一维混沌伪随机生成方法进行了随机性测试分析。测试结果显示，一些被大量采用量化算法均存在一些安全缺陷，为混沌在信息安全中的应用提供了指导。最后提出了若干使用Logistic混沌系统的建议，以提高系统的安全性。

This paper describes the theory of some common generating Pseudo-random sequence methods based on the chaotic map, then the performances of some typical quantization methods in one-dimensional chaotic systems are tested by using the NIST SP800-22 test standard. The experimental results indicate that some kinds of frequently-used method have some security flaws. So this paper could give some help to the application of chaotic system in information security. Finally, some suggestions for using Logistic chaotic map are proposed to improve the system security.