中文摘要：

Chen .Frog, received his Ph.D. degree from Huazhong University of Science and Technology, Wuhan, China. He is an associate professor at Wuhan University, China. His research interests include network security and wireless network. Du Ruiying, received his Ph.D. degree from Wuhan University, China. She is a professor at Wu- hart University. Her research interests include network security and wireless network. Yu Fajiang, received his Ph.D. degree from Wuhan University, China. He is a lecturer at Wuhan University. HIS research interests include information security and trust corrputing. The corresponding author. Email： qshxyu@126.com Zheng Minghui, received his Ph.D. degree from Huazhong University of Science and Technology, Wuhan, China. He is a professor at Hubei University for Nationalities, China. His research interests include network security. Zhang Huanguo, is a professor at Wuhan University, China. His research interests include information security and trust computing.