1. College of Computer and Cyber Security, Fujian Normal University,Fujian Provincial Key Laboratory of Network Security and Cryptology,Fuzhou,P.R. China
2. College of Computer and Cyber Security, Fujian Normal University,Fuzhou,P.R. China
3. National Cheng Kung University,Department of Computer Science and Information Engineering,Tainan,Taiwan
4. School of Engineering, IT and Physical Sciences, Federation University Australia,Ballarat,Australia