DES密码算法分析与改进

On DES encryption algorithm analysis and its improvement

DES是我国信息传递领域中通常采用的密码算法,在金卡工程中得到广泛应用。本文分析了DES算法的加密和解密规则,指出了DES算法中存在的缺陷,介绍了加强DES算法安全性的七种改进措施。

DES, as the normally used password algorithm, is widely used in electronic engineering. With analysis of DES encryption algorithm and declassification process, this paper pointed out its shortcomings, and introduced seven improvements to enhance its security.