数据加密标准DES分析及其攻击研究

Analysis and Attack Research of DES Cipher

介绍了DES算法的加密方法及其数学原理，分析了破译DES所用的密码学方法之一，即差分密码分析。提出了采用此方法破译低轮DES的具体做法及其关键步骤。

This paper introduces the encryption method and maths principle of DES Cipher, analyses one of the cryptography method used to attack DES: differential cryptanalysis. It also puts forward the key step of using differential cryptanalysis to get key of low round DES.