1. Department of Computer Science, COMSATS University, Islamabad, Pakistan
2. Information Security Institute, Cybernetica AS, Tallinn, Estonia
3. Institute of Information Technology, Quaid-i-Azam University, Islamabad, Pakistan
4. School of Computing, Gachon University, Seongnam, South Korea
5. Department of Math and Computer Science, Brandon University, Brandon, Canada
6. Department of Computing, Mathematics, and Physics, Western Norway University of Applied Sciences, Bergen, Norway