School of Computer and Communication Engineering Hunan University of Science and Technology Xiangtan 411201 Hunan China;
School of Computer and Communication Engineering Hunan University of Science and Technology Xiangtan 411201 Hunan ChinaSchool of Computer Science University of Newcastle Newcastle 2308 New South Wales Australia;
School of Computer and Communication Engineering Hunan University of Science and Technology Xiangtan 411201 Hunan China;
School of Computer and Communication Engineering Hunan University of Science and Technology Xiangtan 411201 Hunan China;
VANETs; fair; blind; signature; trusted; third-party; anonymous; authentication;