Waqar Khalid received the bachelor’s degree (Hons.) in computer science from the Institute of Business and Management Study (IBMS), The University of Agriculture, Peshawar, Khyber Pakhtunkhwa, Pakistan, and the Master of Science (M.S./M.Phil.) degree in computer science from the Institute of Management Sciences (IMSciences), Peshawar, Khyber Pakhtunkhwa. He is currently pursuing the Ph.D. degree with the School of Cyber Science and Engineering, Wuhan University, China. He has been a Teacher with the Elementary and Secondary Education, Khyber Pakhtunkhwa, since 2017. His research interests include the design and analyses of secured communication protocols in networks (self organizing networks: DTNs, VANETs, WSNs, SINs, and the IoTs). He designs new cryptographic algorithms and cryptanalysis of the existing algorithms. He is a reviewer in various journals of IEEE and Elsevier.