provide security in Vehicular Ad Hoc Networks (VANETs). On the other hand, the trade-off
between authentication/non-repudiation and anonymous communication may lead to a
harmful type of network attack called sybil attack. In such an attack, a malicious node
behaves as if it is a large number of nodes. In this paper, we propose an anonymous
authentication and sybil attack detection protocol for VANETs called ASAP-V. Experimental …