1. School of Computer Science and Information Security, Guilin University of Electronic Technology,Guangxi Key Laboratory of Cryptography and Information Security,Guilin,China
2. School of Information, Renmin University of China,Key Laboratory of Data Engineering and Knowledge Engineering, Ministry of Education,Beijing,China
3. Shenzhen Olym Information Security Technology Co., Ltd.,Shenzhen,China
4. School of Mathematics and Computing Science, Guilin University of Electronic Technology,Guilin,China