1. Department of Computer Engineering, Lorestan University, Khorramabad, Lorestan, Iran
2. Iran Telecommunication Research Center (ITRC), Tehran, Iran
3. Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
4. Department of Information Security, University of Nagasaki, Nagasaki, Japan
5. Department of Computing, Macquarie University, Sydney, Australia