DES加密解决办法

DES加密
网上有很多DES加密字符串的算法，请问下自己加密字节数组，返回字节数组可以吗？

C# code

        public static byte[] Encode(byte[] data)        {            byte[] byKey = KEY_64;            byte[] byIV = IV_64;            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();            int i = cryptoProvider.KeySize;            MemoryStream ms = new MemoryStream();            CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write);            cst.Write(data, 0, data.Length);            cst.FlushFinalBlock();            byte[] buffer = ms.GetBuffer();            return buffer;         }      public static byte[] Decode(byte[] data)        {            byte[] byKey = KEY_64;            byte[] byIV = IV_64;            byte[] byEnc;            byEnc = data;            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();            MemoryStream ms = new MemoryStream();            CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read);            cst.Read(byEnc, 0, (int)byEnc.Length);            cst.FlushFinalBlock();            byte[] buffer = new byte[ms.Length];            ms.Read(buffer, 0, (int)ms.Length);            return buffer;       }