基于MD5算法的身份鉴别技术的研究与实现

Study and Realization of Authentication Technique Based on MD5 Algorithm

MD5报文摘要算法是一种应用广泛的身份认证算法，该文首先对数据加密技术进行了简要的概述。在剖析MD5算法工作原理的基础上，结合DES加密算法，采用加入时间戳、绑定IP地址的基于MD5文摘算法的一次一密方法，给出一个对访问用户口令加密的安全实现，并成功地应用于某高校“艺术类远程招生与考试管理系统”。

MD5 algorithm is an authentication method used in a broad research field. The data encryption techniques are summarized in this paper. On the basis of anatomy of MD5 algorithm, combining of DES encryption algorithm, introducing time countermark and restricting of IP address, the method of one password at a time based on MD5 algorithm is used to give a security implementation of user password encryption. The judging mechanism is well applied to realize the 'long distance - recruiting students and exam managing system of department of art' for one institute.