TY - GEN
T1 - On the security of a privacy-preserving key management scheme for location based services in VANETs
AU - Liu, Bao
AU - Zhang, Lei
AU - Domingo-Ferrer, Josep
PY - 2014
Y1 - 2014
N2 - Location based services (LBSs) are promising value-added services in vehicular ad hoc networks (VANETs), which can yield substantial economic profits. To extensively deploy LBSs in VANETs, it is essential to establish an efficient privacy-preserving key management scheme. In this paper, we point out a privacy weakness in a recent key management scheme based on group signatures for LBSs in VANETs; then we propose a secure and privacy-enhanced version. In our scheme, roadside units (RSUs) act as group managers. Vehicles are distributed into groups maintained by these RSUs. If a vehicle's member key is compromised, one just needs to update the group public key corresponding to its group manager. With this method, the member revocation and privacy leakage problems in schemes based on group signatures are solved effectively. As a result, a vehicle may enjoy LBSs efficiently without surrendering its privacy.
AB - Location based services (LBSs) are promising value-added services in vehicular ad hoc networks (VANETs), which can yield substantial economic profits. To extensively deploy LBSs in VANETs, it is essential to establish an efficient privacy-preserving key management scheme. In this paper, we point out a privacy weakness in a recent key management scheme based on group signatures for LBSs in VANETs; then we propose a secure and privacy-enhanced version. In our scheme, roadside units (RSUs) act as group managers. Vehicles are distributed into groups maintained by these RSUs. If a vehicle's member key is compromised, one just needs to update the group public key corresponding to its group manager. With this method, the member revocation and privacy leakage problems in schemes based on group signatures are solved effectively. As a result, a vehicle may enjoy LBSs efficiently without surrendering its privacy.
KW - Key management
KW - Location based services
KW - Security
KW - Vehicle privacy
KW - Vehicular ad hoc networks
UR - https://www.scopus.com/pages/publications/84958540446
U2 - 10.1007/978-3-319-05302-8_20
DO - 10.1007/978-3-319-05302-8_20
M3 - 会议稿件
AN - SCOPUS:84958540446
SN - 9783319053011
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 323
EP - 335
BT - Foundations and Practice of Security - 6th International Symposium, FPS 2013, Revised Selected Papers
PB - Springer Verlag
T2 - 6th International Symposium on Foundations and Practice of Security, FPS 2013
Y2 - 21 October 2013 through 22 October 2013
ER -