摘要
数字签名系统中需用一个安全可靠且易实现的Ｈａｓｈ函数．Ｈａｓｈ函数有严格的要求，其构造及性能分析难度都较大．本文构造了一个比较实用的Ｈａｓｈ函数，并对其性能作了较全面的分析．同时指出了Ｈａｓｈ函数在票据防伪、防止非法修改应用软件中的应用．
A Hash function of safety,reliability and simple realization is often used in digital signature system. A Hash function has some strict demands, and its structure and properties' analyses are very difficult. In this paper, a useful Hash function is structured, and its properties are analysed more perfectly. In addition, the paper points out its applications in discerning the false bills from the genuine and preventing from illegally modifying practical software.
出处
《杭州大学学报（自然科学版）》
CSCD
1999年第1期42-46,共5页
Journal of Hangzhou University Natural Science Edition
关键词
HASH函数
设计
数字签名系统
票据防伪
应用软件
digital signature Hash function one direction function diffusion property S box centural distance
