An Improved Authentication Protocol in Vehicular Ad-hoc Networks using Certificateless Signature
Chae Duk Jung, Chul Sur, Sang Woo Park, Kyung-Hyune Rhee · The Journal of the Korean Institute of Information and Communication Engineering · 2007
In this paper, we propose an efficient authentication protocol based on certificateless signature scheme, which does not need anyinfrastructure to deal with certification of public keys, among the vehicles in Vehicular Ad-hoc Networks. Moreover, due to the characteristicsof VANET nodes (i.e., vehicles) that is fast and movement, the proposed protocol introduces the concept of interval signing key to overcome efficiently the problem of certificate revocation in traditional Public Key Infrastructure(PKI).