计算机工程 ›› 2012, Vol. 38 ›› Issue (7): 113-115.doi: 10.3969/j.issn.1000-3428.2012.07.037

• 安全技术 • 上一篇    下一篇

一种改进的伪随机数算法研究

赵跃华,房军祥   

  1. (江苏大学计算机科学与通信工程学院,江苏 镇江 212013)
  • 收稿日期:2011-07-11 出版日期:2012-04-05 发布日期:2012-04-05
  • 作者简介:赵跃华(1958-),男,教授、博士,主研方向:信息安全;房军祥,硕士研究生

Research on Improved Pseudo Random Number Algorithm

ZHAO Yue-hua, FANG Jun-xiang   

  1. (School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang 212013, China)
  • Received:2011-07-11 Online:2012-04-05 Published:2012-04-05

摘要: 传统二维Logistic映射算法生成的伪随机数均匀性不高。为此,提出一种改进的伪随机数算法。对一维Logistic映射以及二维 Logistic映射进行分析,基于迭代参数优化技术,引入取模运算解决序列超界问题。实验结果表明,该改进算法产生伪随机数的均匀性较高,安全性较好。

关键词: 混沌, 二维Logistic, 伪随机数, 模运算

Abstract: The traditional two-dimensional Logistic mapping which generates uniform pseudo random number is not high. This paper proposes a research on improved pseudo random number algorithm. It uses the iterative optimization techniques, based on the analysis of the one-dimensional Logistic mapping and two-dimensional Logistic mapping, and through the introduction of the modular operation to solve the sequence of super-sector issues. Experimental result shows that the uniformity of pseudo random periodic and security of the improved algorithm produces is better.

Key words: chaos, two-dimensional Logistic, pseudo random number, modular arithmetic

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