实现DES加密算法的加密解密功能，能够实现56位或56*3密钥的des算法，可以通过该程序提供的接口，进行数据的加密，保证数据在传送过程的安全性。-The realization of DES encryption algorithm for encryption and decryption functions, can realize the algorithm of Des 56 or 56*3 key, can be provided through the program interface, data encryption, ensure the data security in transmission process.