机译:
School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;
State Key Laboratory of Information Security, Institute of Information Engineering,Chinese Academy of Sciences, Beijing 100093, China;
School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;
School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;
School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;