des算法简单实现。它以64位的明文和56位的密钥作为输入，通过DES加密运算产生64位密文输出。其解密过程利用同以密钥和算法将密文还原成明文。因为java语言的安全性＆网络处理能力强，所以就利用了java语言编写-des simple algorithm to achieve. It's expressly 64 and 56 as the key input, through DES encryption algorithms have 64 ciphertext output. I

用java实现的sha1加密算法，格式非常规范，标准的的一个程序源码，注释非常详细^ -The java the sha1 encryption algorithms to achieve, very standardized format, the standard of a program source code annotation very detailed ^

Implementation of various encryption algorithms in java