Galois环对Z_m 环上一类逻辑函数的分析(英文)

Analysis of a Class of Logical Functions over Galois and Z_m Rings

本文利用特征谱对Galois环和Zm 上型为f(x ,y) =(q(x) ,… ,q(x) ) ·y +h(x)逻辑函数密码性质进行了分析 ,给出了 f(x ,y)的特征谱与 q(x)及h(x)的关系 ,而且指出当 q(x)与h(x)满足一定密码性质时 ,f(x ,y)

In this paper, the author analyzed some cryptographic properties of a class of logical functions, f(x,y)=(q(x),...,q(x))·y+h(x),over Galois rings and residue rings, presented the relationship between the character spectrum of f(x,y) and the character speetrum of q(x),h(x) and the relationship between the cryptographic properties of f(x,y) and the cryptographic properties of h(x).