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
中图分类号:
赵跃华, 房军祥. 一种改进的伪随机数算法研究[J]. 计算机工程, 2012, 38(7): 113-115.
DIAO Ti-Hua, FANG Jun-Xiang. Research on Improved Pseudo Random Number Algorithm[J]. Computer Engineering, 2012, 38(7): 113-115.