差分分析中的特征概率计算问题研究

STUDY ON THE COMPUTATION OF DIFFERENTIAL CHARACTERISTIC PROBABILITY IN DIFFERENTIAL CRYPTANALYSIS

该文指出了长期以来在差分密码分析中所采用的差分特征概率计算方法与差分分析基本原理不相符合的矛盾,对这一问题进行了深入研究,给出了二者等价的充分条件,力图解决差分分析方法的理论基础问题。

This paper points out the contradiction between the way of computing the differential characteristic probability and the principle of differential cryptanalysis, gives a deep reaserch on it and proposes a equivalent sufficient condition. The goal of the work is trying to solve the problem of the basic theoretic foundation for differential cryptanalysis.