An efficient authentication framework over heterogeneous vehicular networks

Recently, the use of 4G wireless network to support vehicular applications has attracted more and more research attentions. Although some applications have been proposed to support traffic safety and transportation efficiency using Long Term Evolution (LTE) techniques, the security issues of the integration of LTE into the vehicular environments have less been addressed. In this paper, we propose a security framework over a public transport based heterogeneous wireless vehicular networks to face the challenges of malicious attacks in vehicular environments efficiently. We conduct security analysis and proof of logic correctness of the proposed schemes by formal logic. Besides, performance evaluation shows that the proposed authentication framework can efficiently reduce authentication time and number of hops during message relay by sharing key information.