Xuejing Yuan, SKLOIS, Institute of Information Engineering, Chinese Academy of Sciences. School of Cyber Security, University of Chinese Academy of Sciences.; Yuxuan Chen, Florida Institute of Technology; Yue Zhao, SKLOIS, Institute of Information Engineering, Chinese Academy of Sciences. School of Cyber Security, University of Chinese Academy of Sciences.; Yunhui Long, University of Illinois at Urbana-Champaign; Xiaokang Liu and Kai Chen, SKLOIS, Institute of Information Engineering, Chinese Academy of Sciences. School of Cyber Security, University of Chinese Academy of Sciences.; Shengzhi Zhang, Florida Institute of Technology. Department of Computer Science, Metropolitan College, Boston University, USA; Heqing Huang, unaffiliated; Xiaofeng Wang, Indiana University Bloomington; Carl A. Gunter, University of Illinois at Urbana-Champaign