public void Execute()
{
var file = filesView.SelectedFile;
if (!CheckFile(file))
{
throw new InvalidOperationException("Selected file is null or is not rsa.");
}
using (var form = formFactory.CreateDecipherForm()) {
form.InputFileName = file.FullName;
var serializer = new KeySerializer(new BigNumberHexSerializer());
new DecipherFormPresenter(form, rsaFactory, serializer, commandsContainer, file, environmentHelper, messageHelper,
fileUnifier);
form.ShowDialog();
}
}