查看文章

VANET security became a significant and active area within the research community. Despite the different attacks on certain nodes of the VANET which have been revealed, numerous attacks for instance Jamming, Sybil, and also passive eavesdropping can debase the VANET performance. Consequently, it is vital to have some precautionary mechanism in opposition to these attacks. In Sybil Attack (SA), the attacker produces multiple identities that might belong to other vehicles or dummy identities and send messages to legal nodes. These sham identities are generated by the assailant to get the trust of the legal node. In VANETs (Vehicular Ad Hoc Networks), the vehicular needs smart road maintenance, smart signaling, along with other services. The new security problem arises because of the actuality that there is chance for the semi-trusted Road Side Units (RSUs) to be compromised. This Review Paper highlighted the latest studies regarding the avoidance of the SA in VANET like detecting SA on urban Vehicular Networks (VN), attacks in VANET, security challenges on VANET and robust technique for SA detection. Also, details of SA and VANETs are examined. The mechanisms are assessed centered on the positive rate, nontrustworthy rate, and false negative rate.