M. Hossein Ahmadzadegan - Azad University of Tehran Department of Electrical Engineering and Information Technology
Ali-asgar Khorshidvand - Azad University of Tehran Department of Electrical Engineering and Information Technology
Mehrdad Pezeshki - Azad University of Zanjan Department of Electrical Engineering and Information Technology

Secure login by passwords in the sites and applications has always been a major concern by users. Meanwhile, many spywares like Keylogger have been developed that can record the users' input characters and then have access to their passwords. In this method, a capability has been created in which Keylogger Software cannot login the user system as they record input characters. The method is in the way that one-time passwords (OTP) are generated for the users utilizing the Logistic Map Chaos Function; these passwords are expired after being used by the user and they are not valid any more. An Android Software was used to generate one-time passwords. The user generates the one-time password by installing this Android Software on his/her smart phone and enters the password into the computer without any concern of the Keylogger. The results demonstrate the success for this method.

Chaos Function; Keylogger; one-time password; database tables