DES( Data Encryption Standard)算法，于1977年得到美国政府的正式许可，是一种用56位密钥来加密64位数据的方法。DES算法以被应用于许多需要安全加密的场合。（如：UNIX的密码算法就是以DES算法为基础的）。下面是关于如何实现DES算法的语言性描述，如果您要其源代码，可以到Http//Assassin.yeah.net下载，后者您有任何问题也可以写信给我（Assassin@ynmail.com）。 -DES (Data Encryption Standard) algorithm, in 1977 the United States government's official permission, is a key 56 to 64-bit data encryption methods. DES algorithm to be applied to many needs security encryption occasions. (Eg : UNIX password algorithm is to DES algorithm-based). Here is how to achieve the DES algorithm descr iption language if you want to source code, they can go to Http / / Assassin.yeah.net download, which you have any problems can also write to me (Assassin@ynmail.com).