Vehicular adhoc networks (VANETs) provides communication between the vehicles like V2V and also provides communication between the Vehicles and the Road side Units. Recently, VANETs have greater scope in establishing interconnectivity between the vehicles on road and off road. These networks ensure the timely report of accidents happening in highways, alerting the nearest hospital, insurance claims if the vehicle is breakdown, etc. Vehicles often travels in highways lack the network connectivity, which then can be ensured through many technology implementations like 4G, 5G, LTE networks and protocols like IEEE 802.11p and DSRC were helpful in achieving the effectiveness of vehicular networks. In this paper, we have proposed a protocol Secure Dedicated Short-Range Communication (S-DSRC) protocol that can establish connectivity between the vehicles in a secure way. There will be a secret key, private kay and public key exchange between the vehicles so that the safety message can be sent to vehicles in a secure way. Our results show that S-DSRC protocol outperforms the existing DSRC protocol for a medium sized network.

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