1. Beijing Institute of Technology,School of Computer Science and Technology,Beijing,China
2. Shandong University,School of Information Science and Engineering,Qingdao,China
3. Inspur Electronic Information Industry Co., Ltd,Jinan,China
4. Qilu University of Technology,School of Information and Automation,Jinan,China
5. Beijing University of Posts and Telecommunications,Center of Information Security,Beijing,China
6. Shandong Gentle Tecchnology co., Ltd,Jinan,China