计算机工程2012，Vol.38Issue(24)：111-114,118,5.
MD5算法的研究与改进
Research and Improvement of MD5 Algorithm
摘要
Abstract
MD5 algorithm has important applications in the field of data encryption such as digital signature, identity authentication and so on, but it can not resist differential attack and dictionary attack. This paper does certain special transform on some related variables during message preprocessing course of MD5 to improve probability of data high overflow, and increase the avalanche effect and difficulty of differential cryptanalysis, so that collision problem of MD5 algorithm is solved. Through doing collision detection, coincidence detection of encrypted values before and after improvement for improved algorithm, the improved MD5 is proved safe and practical.关键词
MD5算法/HASH函数/差分分析/碰撞/消息预处理Key words
MD5 algorithm/ HASH function/ differential cryptanalysis/ collision/ message preprocessing分类
信息技术与安全科学引用本文复制引用
毛熠,陈娜..MD5算法的研究与改进[J].计算机工程,2012,38(24):111-114,118,5.基金项目
2012年度河南省教育厅科学技术研究基金资助重点项目(12A620003) （12A620003）
