Secure and efficient protocol for position-based routing in VANETs

Since VANETs have great potential in improving the traffic condition and position-based protocol is popular in VANETs, a scheme is proposed to enhance the security performances of position-based routing protocols. Like other security solutions, this scheme employs digital signature to guarantee the identity authentication, data integrity and non-repudiation. The difference to most of other existed solutions is that an evaluation mechanism is proposed, which can detect malicious nodes that drop or tamper routing data. This mechanism has been proved efficiency and has better security and network performance by comparing with the hybrid signature routing scheme via NS2 simulation.