计算机科学 ›› 2017, Vol. 44 ›› Issue (7): 107-110.doi: 10.11896/j.issn.1002-137X.2017.07.020
曹晓梅,陈海山,王少辉
CAO Xiao-mei, CHEN Hai-shan and WANG Shao-hui
摘要： 将构造S盒的问题转化为寻找满足一定条件的映射的问题。利用 Tent映射的混沌特性,提出初始映射算法,并使用该算法得到可作为初始S盒的初始映射。为了提高S盒的安全性,提出了使用多个初始映射对初始S盒做非线性操作的多重映射算法,经安全性准则检验,该算法能够获得安全性更高的S盒。最后通过设定一个安全指标统计了该算法能够生成的优良S盒的个数,表明优良S盒的个数随着算法采用初始映射个数的增加而增加,并且实现算法所需的时间与算法中采用的初始映射的个数成正比。
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