C#中对象的加密序列化

我使用下面给出的函数将我的DataTable存储在一个文件中,这是我从网站上获取的.代码效果很好.

问题是：

我想在这里应用某种加密.我怎样才能实现这一目标？

public void SerializeObject<T>(T serializableObject,string fileName)
    {
        if (serializableObject == null) { return; }

        try
        {
            XmlDocument xmlDocument = new XmlDocument();
            XmlSerializer serializer = new XmlSerializer(serializableObject.GetType());
            using (MemoryStream stream = new MemoryStream())
            {
                serializer.Serialize(stream,serializableObject);
                stream.Position = 0;
                xmlDocument.Load(stream);
                xmlDocument.Save(fileName);
                stream.Close();
            }
        }
        catch (Exception ex)
        {
            //Log exception here
        }
    }

任何帮助都非常感谢.

谢谢

解决方法

使用以下给定的类加密/解密流式XML文件：
您可以根据自己的要求使用其他加密策略.

public static class EncryptionManagement
{
  private static SymmetricAlgorithm encryption;
  private const string password = "admin";
  private const string Mkey = "MY SECRET KEY";

  private static void Init()
  {
    encryption = new RijndaelManaged();
    var key = new Rfc2898DeriveBytes(password,Encoding.ASCII.GetBytes(Mkey));

    encryption.Key = key.GetBytes(encryption.KeySize / 8);
    encryption.IV = key.GetBytes(encryption.BlockSize / 8);
    encryption.Padding = PaddingMode.PKCS7;
  }

  public static void Encrypt(Stream inStream,Stream OutStream)
  {
    Init();
    var encryptor = encryption.CreateEncryptor();
    inStream.Position = 0;
    var encryptStream = new CryptoStream(OutStream,encryptor,CryptoStreamMode.Write);
    inStream.copyTo(encryptStream);
    encryptStream.FlushFinalBlock();
  }


  public static void Decrypt(Stream inStream,Stream OutStream)
  {
    Init();
    var encryptor = encryption.CreateDecryptor();
    inStream.Position = 0;
    var encryptStream = new CryptoStream(inStream,CryptoStreamMode.Read);
    encryptStream.copyTo(OutStream);
    OutStream.Position = 0;
  }
}