摘要： 提出了线性码理论用于SPN分组密码线性层(或称扩散层)设计,并给出了过线性码设计最优扩散线性层的方法,从而为密码结构中的线性变换的设计提供了理论基础。利用该方法进行了实例设计与分析,并对其扩散特性进行了仿真。
关键词:
SPN分组密码,
线性层,
线性码,
分支数
Abstract: The theory of linear code is applied into designing the linear(or diffusion) layer in block cipher with SPN structure.At the same time,it presents the method of designing optimal linear mapping with the linear code,which provides the theory basis of designing optimal linear mapping.As an example,a linear mapping is designed,analyzed and simulated.
中图分类号:
崔灵果,曹元大. 一种SPN线性层的设计方法[J]. , 2005, 31(20): 17-.
CUI Lingguo1,CAO Yuanda2. A Design Method for Linear Layer of SPN Structure[J]. , 2005, 31(20): 17-.