文献类型：期刊文献

英文题名：Hybrid conditional privacy-preserving authentication scheme for VANETs

作者：Wang, Shibin[1];Mao, Kele[2];Zhan, Furui[3];Liu, Dong[1]

第一作者：Wang, Shibin

通讯作者：Wang, SB[1]

机构：[1]Henan Normal Univ, Coll Comp & Informat Engn, Xinxiang, Henan, Peoples R China;[2]Xinxiang Univ, Modern Educ Technol Ctr, Xinxiang, Henan, Peoples R China;[3]Dalian Maritime Univ, Coll Informat Sci & Technol, Dalian, Peoples R China

第一机构：Henan Normal Univ, Coll Comp & Informat Engn, Xinxiang, Henan, Peoples R China

通讯机构：[1]corresponding author), Henan Normal Univ, Coll Comp & Informat Engn, Xinxiang, Henan, Peoples R China.

年份：2020

卷号：13

期号：5

起止页码：1600-1615

外文期刊名：PEER-TO-PEER NETWORKING AND APPLICATIONS

收录：;EI(收录号：20202008646551);Scopus(收录号：2-s2.0-85084363442);WOS:【SCI-EXPANDED(收录号:WOS:000531197400001)】；

语种：英文

外文关键词：Privacy preserving; Certificate; Anonymous identity; Authentication; VANETs

摘要：In existing authentication schemes for vehicular ad hoc networks (VANETs), the public key infrastructure (PKI)-based pseudonym certificate, identity-based encryption and group signature technology are usually used to preserve the security and privacy. However, these schemes face some challenges, e.g., the time-consuming certificate revocation list (CRL) checking, identity revocation issue and the computation overhead of group signature, respectively. To cope with these challenges, we propose a hybrid conditional privacy-preserving authentication protocol based on the PKI certificate and identity-based signature. In our scheme, the trust authority (TA) assigns the unique long-term certificate for every registered node. Only the vehicle with valid certificate can apply the anonymous short term identity from the current RSU to sign safety-related message. The identity-based signature avoids the CRL checking and the complex bilinear paring operation. When vehicle is compromised, TA can easily revoke its identity by the only long-term certificate. To further enhance efficiency, vehicle can verify the received messages by the single or batch authentication manner. In addition, we optimize the authentication process to avoid vehicle verifying the repeated and unnecessary signatures. Compared with the current schemes, the simulation result shows that our authentication protocol can effectively reduce verified messages in the case of meeting the requirement of security and privacy.