Vehicular Ad-hoc Networks (VANET) are constructed to manage the communication between the vehicles. Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) communication methods are supported under the VANET environment. In cryptography, a message authentication code (MAC) is a short piece of information used to authenticate a message—in other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed in transit (its integrity).On Board Unit and Road Side Infrastructure (RSI) are used to carry out the communication process. In vehicular networks, broadcast communications are critically important, as many safety-related applications rely on single-hop beacon messages broadcast to neighbor vehicles. However, it becomes a challenging problem to design a broadcast authentication scheme for secure vehicle-tovehicle communications. Especially when a large number of beacons arrive in a short time, vehicles are vulnerable to computation-based Denial of Service (DoS) attacks that excessive signature verification exhausts their computational resources.
Keywords
Vehicular Ad-hoc Networks
Message Authentication code
Denial of Service
Authors
K.S.Saravanan
N.Boomathi
How to Cite this Article
K.S.Saravanan, N.Boomathi (2016).
"MESSAGE AUTHENTICATION PROCESS IN VANET DATA COMMUNICATION".
International Journal of Contemporary Research in Computer Science and Technology,
2(8), pp. 915-918.
