private static void Encrypt(string sourceFile, string targetFile, IEncryptorFactory factory)
{
using (Stream stream = new FileStream(sourceFile, FileMode.Open))
using (Stream writer = new FileStream(targetFile, FileMode.Create))
using (var encryptStream = new CryptoStream(writer, factory.CreateEncryptor(), CryptoStreamMode.Write))
{
encryptStream.WriteFrom(stream);
}
}
