中文摘要：

HU Dongping, is currently a Ph.D. candidate in Information Security, School of Computer Science and Technology, Huzhong University of Science and Technology, Wuhan, China. Her current research interests include symmetric cryptography, private-key search- able encryption. CUI Yongquan, received the Ph.D. degree in Information Security from Huazhong University of Science and Technology, Wuhan, Hubei, China, in 2007. He is currently a lecturer at Huazhong University of Science and Technology, Wuhan. His research interests focus on privacy preservation techniques. The corresponding author. Email： yqcui1977@mail.hust.edu.cn YIN Aihua, received Ph.D. degree in computer science and technology from Huzhong University of Science and Technology in 2003. He is an associate professor with the School of Software and Communication Engineering, Jiangxi University of Finance and Economics. His current research interest combinato- rial optimization, operational research. CHEN Liang, received PhD degree in information security from Huazhong University of Science and Technology, Wuhan, China, in 2013. He is currently an engineer in National Computer Network Emergency Response Technical Team/Coordination Center of China. His research interests focus on network security. CUI Chunying, received the MS. degree Huazhong University of Science and Technology, Wuhan, Hubei, China, in 2007. She is currently a lecturer at Zhoukou Normal University, Zhoukou, Henan, China. Her research focuses on privacy preservation. ZOU Deqing, received PhD degree in information security from Huazhong University of Science and Technology, Wuhan, China, in 2006. He is currently an Professor in Huazhong University of Science and techn-ology. His research interests focus on cluster and grid computing. HAN Lansheng, received PhD degree in information security from Huazhong University of Science and Technology, Wuhan, China, in 2006. He is currently an Associate Professor in Huazhong University of Science and technology. His research interests focus on ne