using System;
using System.Security.Cryptography;
using System.Text;
 
public class Test
{
	public static void Main()
	{
            string text = "Rvach.blogspot.com";
            byte[] plainData, cipher, key, IV;
            SymmetricAlgorithm cryptoAlgoritm;
            ICryptoTransform cryptor;
 
            #region Encryptor
            plainData = Encoding.ASCII.GetBytes(text);
 
            // This static method creates a new cryptographic using the default 
            // algorithm, which in .NET 4.5 is RijndaelManaged.
            cryptoAlgoritm = SymmetricAlgorithm.Create();
            cryptor = cryptoAlgoritm.CreateEncryptor(cryptoAlgoritm.Key, cryptoAlgoritm.IV);
            cipher = cryptor.TransformFinalBlock(plainData, 0, plainData.Length);
 
            key = cryptoAlgoritm.Key;
            IV = cryptoAlgoritm.IV;
 
            cryptoAlgoritm.Clear();
 
            Console.WriteLine("Cipher: "+ ASCIIEncoding.ASCII.GetString(cipher));
            #endregion
 
            #region Decryptor
 
            cryptoAlgoritm = SymmetricAlgorithm.Create();
            cryptor = cryptoAlgoritm.CreateDecryptor(key, IV);
            plainData = cryptor.TransformFinalBlock(cipher, 0, cipher.Length);
 
            cryptoAlgoritm.Clear();
 
            Console.WriteLine("Plain: "+ ASCIIEncoding.ASCII.GetString(plainData));
            #endregion
 
            Console.ReadKey();
	}
}