1. School of Computer Science and Communication Engineering, Jiangsu University, Zhenjiang, People’s Republic of China
2. Jiangsu Key Laboratory of Security Technology for Industrial Cyberspace, Zhenjiang, People’s Republic of China
3. Faculty of Applied Sciences, Garden City University College, Kenyase - Kumasi, Ghana
4. School of Computer Science, Jiangsu University of Science and Technology, Zhenjiang, People’s Republic of China