| Affiliation: | 1. Department of Mathematics and Statistics, South-Central University for Nationalities, Wuhan 430074, China;2. Department of Informatics, University of Bergen, N-5020 Bergen, Norway;1. Instituto Universitario de Matemáticas y Aplicaciones de Castellón and Departamento de Matemáticas, Universitat Jaume I, Campus de Riu Sec. 12071 Castelló, Spain;2. Instituto de Matemáticas (Imuva) and Departamento de Matemática Aplicada, Universidad de Valladolid, Avda Salamanca SN, 47014 Valladolid, Spain;1. College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, China;2. School of Mathematics and Statistics, Hunan University of Technology and Business, Changsha, China;3. State Key Laboratory of Cryptology, Beijing, 100878, China;1. School of Mathematical Sciences, Qufu Normal University, Qufu, China;2. School of Computer Science and Technology, Dongguan University of Technology, Dongguan, China;3. Guangxi Key Laboratory of Cryptography and Information Security, Guilin University of Electronic Technology, Guilin, China;4. College of Information Science and Technology, Jinan University, Guangzhou, China;1. College of Information Science and Technology, Jinan University, Guangzhou 510632, China;2. State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China;1. Gongqing College, Nanchang University, Jiujiang 332020, China;2. Faculty of Mathematics and Statistics, Hubei University, Wuhan 430062, China;3. School of Information Engineering, Nanchang University, Nanchang 330031, China |
