using System;

using System.IO;

using System.Security.Cryptography;

using System.Text;

using System.Web;

public class Program

{

    public static void Main()

    {

        string _APIKey = "hf$7ad@#4jf9jGFs3f-dkv";

        string _PartnerEmail = "partner@crl.com";

        string _PartnerPwd = "123qweqwe";

        int? customerID = 1262;

        string token = "uhiEKCT%QdvRmvRrDyQW";

        string subCustomerID = "";

        string session = "";

        long send_time = (long)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;

​

        string data = string.Join("|", _PartnerEmail, _PartnerPwd, customerID, subCustomerID, token, send_time, session);

        using (var myAes = new RijndaelManaged())

        {

            myAes.Mode = CipherMode.CBC;

            //myAes.Padding = PaddingMode.None;

            //myAes.KeySize = 256;

            //myAes.BlockSize = 128;

​

            byte[] d = new byte[16];

            byte[] key = Encoding.UTF8.GetBytes(_APIKey);

            Array.Copy(key, 0, d, 0, Math.Min(16, key.Length));

​

            myAes.Key = d;

            myAes.GenerateIV();

            //myAes.IV = new byte[16];

​

            byte[] encrypted;

​

            ICryptoTransform encryptor = myAes.CreateEncryptor(myAes.Key, myAes.IV);

​

            using (MemoryStream msEncrypt = new MemoryStream())

            {

                using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))

                {

                    using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))

                    {

                        swEncrypt.Write(data);

                    }

                    encrypted = msEncrypt.ToArray();

                }

            }

​

            byte[] ret = new byte[myAes.IV.Length + encrypted.Length];

            Array.Copy(myAes.IV, 0, ret, 0, myAes.IV.Length);

            Array.Copy(encrypted, 0, ret, myAes.IV.Length, encrypted.Length);

​

            Console.WriteLine(HttpUtility.UrlEncode(Convert.ToBase64String(ret)));

        }

    }

}

​