构造基于Logistic映射的Hash函数

Constructing a Hash Function Based on Logistic Mapping

单向 Hash 函数是实现有效、安全可靠数字签名和认证的重要工具,是安全认证协议的重要模块。本文针对文[5]中基于混沌映射的 Hash 算法的一些缺陷,提出了一种解决方案和算法,并对该算法进行了仿真实验,还进行了混乱与散布性质统计分析,验证了本文所提出的算法的有效性。

The one-way function of hash is an important tool of realizing effective and safe and credible numerical signature and authentication, it is an important part of safe authentication protocol. According to some shortcomings of a chaos-based hash algorithm presented in document, this paper puts forward a kind of solution project and algorithm, and does the emulational experiment to the algorithm, and also conducts a statistical analysis of the improved algorithm in confusion and diffusion properties, and therefore verifies the efficiency of the algorithm.