A Traceable Concurrent Data Anonymous Transmission Scheme for Heterogeneous VANETs
This addresses privacy and traceability issues for users in heterogeneous VANETs, representing an incremental improvement over existing security methods.
The paper tackles security challenges in Vehicular Ad Hoc Networks (VANETs) by proposing a traceable concurrent data anonymous transmission scheme, which reduces total computation overhead through a pairing-free design based on multi-trapdoor hash functions.
Vehicular Ad Hoc Networks (VANETs) are attractive scenarios that can improve the traffic situation and provide convenient services for drivers and passengers via vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication. However, there are still many security challenges in the traffic information transmission, especially in the intense traffic case. For ensuring the privacy of users and traceability of vehicles, we propose a traceable concurrent data anonymous transmission scheme for heterogeneous VANETs. The scheme is based on certificateless aggregate signcryption, so it supports batch verification. Moreover, conditional anonymity is also achieved due to the involving of the pseudo-ID technique. Furthermore, it is a pairing-free scheme for the merit of multi-trapdoor hash functions. As a result, the total computation overhead is greatly reduced.