Feistal cipher for the security purposes-Feistal cipher for the security purposes.....

DES encryption implemented at JAVA platform. DES is an data encrption standard based on feistel cipher algorithm and is a very widely used cryptographic standard used in industries.

通过编程实现DES算法， 理解对称加密和Feistel密码结构的基本原理， 掌握DES算法加解密的流程 实验要求 利用C++、 Java实现DES算法， 要求使用面向对象的方法， 分别实现文件的加密和解密方法、 密钥的生成方法。-Through the programming DES algorithm to understand the symmetric encryption and Feistel password structure of the basic principles,