Institution: | 1.State Key Laboratory of Integrated Services Networks, Xidian University, Xian, 710071, P.R. China ;2.School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, P.R. China ;3.University of Primorska, FAMNIT & IAM, Koper, Slovenia ;4.Guangxi Key Laboratory of Cryptography and Information Security, Guilin University of Electronic Technology, Guilin, P.R. China ;5.University of Primorska, FAMNIT, Koper, Slovenia ; |