New efficient certificateless scheme-based conditional privacy preservation authentication for applications in VANET

Abstract

In vehicular network communications, the privacy and authentication requirements are necessary to design efficient solutions that not only ensure the authentication of the traffic-related messages, but also prevent attackers from affecting the driver's privacy, and in the meanwhile reduce the computation and communication costs. In this paper, we investigate ring signature and aggregate concepts in the certificate-less context to avoid the costs and enhance the benefits of both approaches. We propose a new framework Certificateless Aggregate scheme based on Traceable Ring Signature (CLA-TRS) that ensures conditional privacy preservation authentication in VANET communication, while significantly reducing the computational overhead for the signature verification.