一种动态随机数发生器

一种动态随机数发生器 A Dynamic Random Number Generator 李幼名 LI Youming 1 first-author 唐明 TANG Ming 1 张焕国 ZHANG Huanguo 1 武汉大学计算机学院 武汉大学计算机学院 School of Computer,Wuhan University School of Computer,Wuhan University 构造了一种动态随机数发生器,将混沌和分组密码结合起来,先利用混沌的混迭特性产生伪随机比特流,然后利用分组密码杂化伪随机比特流,从而提高比特流的伪随机性;为了引入更多的熵,对分组密码的S盒的输入做系数可变的仿射变换.实验结果表明,此随机数发生器可以通过NIST随机套件测试. This text puts forward a dynamic random number generator.It unites chaos and grouping cipher together.First,a bit sequence is produced by chaos system with its mask characteristic.Then,the sequence is hybridized by a network composed of grouping ciphers,and so its pseudorandom characteristic is strengthened.At the same time,to add more entropy of information to the sequence,a dynamic affine function is applied to the input of the S-box which is a part of the grouping ciphers.Experiment shows that the random number generator can get through the random number test suit from NIST. 动态随机数发生器 混沌 分组密码 dynamic random number generator chaos grouping cipher TN918.1 国家自然科学基金资助项目（60673071） 2008-05-01 2021-04-01 5