中文摘要：

WANG Chunlu, an associate professor in the School of Computer Science, Beijing University of Posts and Telecommunications. Her current research is in computer networks, information security and intelligent transportation. The correspondence author Email： wangcl@bupt.edu.cn LIU Chuonyi, a lecturer at School of Software Engineering, Beijing University of Posts and Telecommunications. His current research interests include cloud computing, trusted computing, and information security. LIU Bin, a Ph.D. student at School of Computer Science, Beijing University of Posts and Telecommunications. His current research interests include computer networks and information security. DONG Yingfei, an associate professor at the Department of Electrical Engineering, University of Hawaii. His research interests are mostly on computer net-work security and real-time networking, especially in anti-DoS schemes, anonymous communications, cloud security, and smart grid security.