Wei Liang is an associate Professor at the College of Information Science and Engineering, Hunan University. He received his Ph.D. degree at Hunan University in 2013. He is a postdoctoral scholar of Department of Computer science and Engineering at Lehigh university in USA in 2014-2016. His research interests include Networks Security Protection, embedded system and Hardware/IP protection, and Fog computing, and Security management in WSN. Email:weiliang99@hnu.edu.cn