【摘要】 HASH函数MD4的设计是不基于任何假设和密码体制的,为了增强MD4的安全性和抗攻击程度,由MD4衍生出多种HASH函数如MD5、SHA-1、RIPEMD-160等.讨论了由MD4函数衍生出的MD5、SHA-1、RIPEMD-160算法设计及其安全性,比较分析各函数的相同与不同点.更多还原

【Abstract】 The design of MD4 HASH function is not based on any hypothesis and cryptogram.In order to strengthen the security and anti-attacking ability of MD4,a variety of HASHS functions,such as MD5,SHA-1 and RIPEMD-160,are deduced from MD4. The algorithm and security of MD5,SHA-1 and RIPEMD-160 deduced from MD4 are discussed, and the parities and differences among these functions are compared and analyzed.更多还原