/// AES加密        ///         /// 输入的数据        /// 向量128位        /// 加密密钥        /// 
             public static byte[] AESEncrypt(byte[] inputdata, byte[] iv, string strKey)        {            //分组加密算法               SymmetricAlgorithm des = Rijndael.Create();            byte[] inputByteArray = inputdata;//得到需要加密的字节数组                   //设置密钥及密钥向量            des.Key = Encoding.UTF8.GetBytes(strKey.Substring(0, 32));            des.IV = iv;            using (MemoryStream ms = new MemoryStream())            {                using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))                {                    cs.Write(inputByteArray, 0, inputByteArray.Length);                    cs.FlushFinalBlock();                    byte[] cipherBytes = ms.ToArray();//得到加密后的字节数组                       cs.Close();                    ms.Close();                                       return cipherBytes;                }            }        }        /// 
        /// AES解密        /// 
        /// 输入的数据        /// 向量128        /// key        /// 
             public static byte[] AESDecrypt(byte[] inputdata, byte[] iv, string strKey)        {            SymmetricAlgorithm des = Rijndael.Create();            des.Key = Encoding.UTF8.GetBytes(strKey.Substring(0, 32));            des.IV = iv;            byte[] decryptBytes = new byte[inputdata.Length];            using (MemoryStream ms = new MemoryStream(inputdata))            {                using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Read))                {                    cs.Read(decryptBytes, 0, decryptBytes.Length);                    cs.Close();                    ms.Close();                }            }            return decryptBytes;        }