Future Road transportation mainly depends upon connected vehicles. Intelligent Transportation Systems bring benefits to the road users through Vehicular Adhoc Networks (VANETs). Since VANET packet contains life critical information, security is inevitable. A rogue node called sybil can transmit fake messages its neighbours and disrupt system, challenging security. nodes are very dynamic, stabil...

Traditional Byzantine consensus does not work in P2P network due to Sybil attack while the most prevalent Sybil-proof consensus at present still can’t resist adversary with dominant compute power. This paper proposed a two-layered opinion dynamics model named SkyHash for hash consensus over P2P network. For hash consensus, failures are constrained due to the difficulty to create collision with ...