Vehicular Ad-Hoc Networks (VANETs) are one of the quintessential elements in imminent transportation systems. Vehicles in the VANET are interconnected with them and the infrastructures through a Dedicated Short Range Communication channel (DSRC) and utilize the IEEE 802.11p legacy as its communication protocol. Wireless communications are susceptible to a variety of attacks. Some of the assaults are false identification claim, monitoring victims and others. Hence, the communication among the automobiles and the infrastructures want to be blanketed towards attacks. VANETs furnish security services like authentication, anonymity, privacy protection, message integrity and others to mitigate the assaults on automobiles and the infrastructures in the network. Many research options which tackle these protection problems in the past. In this paper, some of the posted works of literature are reviewed which presents options to safety troubles like authentication and secluded safety and the solutions had been in contrast to get better understanding.