public PrimeGererator(string message)
 {
     _message = new BigInteger(System.Text.Encoding.UTF8.GetBytes(message));
     _aatkin  = new AAtkin((int)Math.Sqrt((long)_message));
 }
 public PrimeGererator(BigInteger message)
 {
     _message = message;
     _aatkin  = new AAtkin((int)Math.Sqrt((long)message));
 }