标题：Distributed Aggregate Privacy-Preserving Authentication in VANETs
作者：Zhang, Lei; Wu, Qianhong; Domingo-Ferrer, Josep; Qin, Bo; Hu, Chuanyan
作者机构：[Zhang, Lei; Hu, Chuanyan] East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Shanghai 200062, Peoples R China.; [Zhang, Lei; Hu, Chuanyan] 更多 通讯作者地址：[Zhang, L]East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Shanghai 200062, Peoples R China;[Zhang, L]Xidian Univ, State Key Lab Integrated 更多
来源：IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
关键词：Data compression; privacy; protocol design; security; vehicular ad hoc; networks (VANETs)
摘要：Existing secure and privacy-preserving vehicular communication protocols in vehicular ad hoc networks face the challenges of being fast and not depending on ideal tamper-proof devices (TPDs) embedded in vehicles. To address these challenges, we propose a vehicular authentication protocol referred to as distributedaggregate privacy-preserving authentication. The proposed protocol is based on our new multiple trusted authority one-time identity-based aggregate signature technique. With this technique a vehicle can verify many messages simultaneously and their signatures can be compressed into a single one that greatly reduces the storage space needed by a vehicle or a data collector (e.g., the traffic management authority). Instead of ideal TPDs, our protocol only requires realistic TPDs and hence is more practical.