一种构造密码学性质较好的奇数维函数的方法  

A new method to construct odd dimensional functions with comparably good crypt properties

作　　者：张薇[1] 潘晓中[1] 徐晓军[1] 余昭平 

机构地区：[1]武警工程学院,陕西西安710086 [2]电子技术学院,河南郑州450004

出　　处：《通信学报》2002年第10期33-38,共6页Journal on Communications

摘　　要：本文提出一种利用多输出Bent函数构造密码学性质较好的奇数维函数的方法,这里构造出的函数有比较均匀的差分分布和Walsh谱值分布,用作分组密码体制中的非线性逻辑时,能有效地抵抗差分分析和线性分析的攻击。In this paper, a new method to construct odd dimensional functions with comparably good crypt properties using multi-output Bent function is put forward. Functions we constructed has comparably uniform differential distributing and Walsh-Spectrum distributing, hence can consist differential analysis and linear analysis efficiently when used as non-linear logic in block cipher.

关 键 词：密码学 奇数维函数 BENT函数 多输出Bent函数 Walsh谱值 差分分布 迭代型分组密码体制 

分 类 号：TN918.1[电子电信—通信与信息系统]