Yaowen Zheng, Beijing Key Laboratory of IOT Information Security Technology, Institute of Information Engineering, CAS, China; School of Cyber Security, University of Chinese Academy of Sciences, China; Ali Davanian, Heng Yin, and Chengyu Song, University of California, Riverside; Hongsong Zhu and Limin Sun, Beijing Key Laboratory of IOT Information Security Technology, Institute of Information Engineering, CAS, China; School of Cyber Security, University of Chinese Academy of Sciences, China