“…Many forms of security attacks (For e.g., Botnet [15], Man in middle attack, Sybil, etc.,) against VANETs have emerged which could impair the life safety, or loss of income for the implemented value-added services [4]. Among these attacks, Sybil attack, Copyright ⓒ 2015 SERSC which consists in sending messages with multiple forged identities [9]. A Sybil attacker could: a) disturb the generation of routes when a multipath or geographic routing algorithm is used, by appearing in several places in the generated routes; b) affect the results of data aggregation by contributing to the process of aggregation several times; c) evade detection while behaving maliciously by spreading the actions he executes over the forged identities; d) prevent the network from guaranteeing the fairness of resources by claiming several identities and receiving a high percentage of shared resources [11].…”