计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (29): 80-82.DOI: 10.3778/j.issn.1002-8331.2010.29.022

• 网络、通信、安全 • 上一篇    下一篇

基于混沌系统的伪随机序列生成方法

张雪锋1,2,范九伦1   

  1. 1.西安邮电学院 通信与信息工程学院,西安 710061
    2.西安电子科技大学 电子工程学院,西安 710071
  • 收稿日期:2009-12-16 修回日期:2010-02-25 出版日期:2010-10-11 发布日期:2010-10-11
  • 通讯作者: 张雪锋

Pseudo-random sequence generating method based on chaotic systems

ZHANG Xue-feng1,2,FAN Jiu-lun1   

  1. 1.School of Communications and Information Engineering,Xi’an Institute of Posts and Telecommunications,Xi’an 710061,China
    2.School of Electronic Engineering,Xidian University,Xi’an 710071,China
  • Received:2009-12-16 Revised:2010-02-25 Online:2010-10-11 Published:2010-10-11
  • Contact: ZHANG Xue-feng

摘要: 给出了一种循环迭代结构的伪随机序列生成方法。选择函数根据LFSR的计算结果进行取值,确定当前迭代计算使用的混沌系统,通过迭代计算产生相应的混沌序列,然后将生成的混沌序列进行相应的数制转换,将得到的二进制值序列作为产生的伪随机序列输出,同时将其作为反馈值与LFSR的反馈值进行相应的运算,运算结果作为LFSR的最终反馈值,实现对LFSR生成序列的随机扰动。通过实验对生成的伪随机序列进行了分析,结果表明,产生的序列具有良好的随机性和安全性。

Abstract: Pseudo-random sequence is generated based on cycle iteration structure.Choice function is gotten based on LFSR’s computing result,and chaotic system is selected by chaotic function and corresponding chaotic sequence is generated using iterative computation.The chaotic sequence is processed by number system conversion,and generated binary sequence is output as the last pseudo-random sequence,at the same time,the generated binary sequence is considered as feedback and is operated with LFSR’s feedback.The result is regarded as the final feedback of LFSR.This process can achieve random perturbation of LFSR.Performance of pseudo-random sequence generated using this method is also analyzed by experiments.Simulation results show that generated sequence has good randomicity and security.

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