使用三重DES加密算法和替代加密算法对文件进行加密的小程序-The use of triple-DES encryption algorithm and an alternative encryption algorithm to encrypt the document a small program

一个DES的加密解密算法完整实现 包括S盒等重要实现，另外此程序还实现了文件数据流的加密解密 DESAlgorithm.java DesHelper.java DESStream.java // des算法初始置换表ip public static final int[] IP = { 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14,

DES加密和解密的Java程序，已经调试成功了，可以放心使用-DES encryption and decryption of the Java program has been debugged, and is safe to use