using System;

using System.IO;

using System.Linq;

using System.Security.Cryptography;

using System.Text;

public class Program

{

    public static void Main()

    {

        using (AesManaged myAes = new AesManaged())

            {

                // Encrypt the string to an array of bytes.

                byte[] encrypted;

            byte[] contra = Encoding.ASCII.GetBytes("haruko.17");

​

                using (AesManaged aesAlg = new AesManaged())

                {

                    // Create an encryptor to perform the stream transform.

                    ICryptoTransform encryptor = aesAlg.CreateEncryptor(contra, myAes.IV);

​

                    // Create the streams used for encryption.

                    using (MemoryStream msEncrypt = new MemoryStream())

                    {

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

                        {

                            using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))

                            {

                                //Write all data to the stream.

                                swEncrypt.Write(contra));

                            }

                            encrypted = msEncrypt.ToArray();

                        }

                    }

                }

​

                // Decrypt the bytes to a string.

                Console.WriteLine("Original:   {0}", contra);

                Console.WriteLine("Round Trip: {0}", BitConverter.ToString(encrypted).Replace("-", String.Empty));

            }

    }

}

​

​