alexa Abstract | Implementing Efficient Prediction Based Algorithm for Vehicular Adhoc Networks
ISSN ONLINE(2320-9801) PRINT (2320-9798)

International Journal of Innovative Research in Computer and Communication Engineering
Open Access

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Research Article Open Access

Abstract

Broadcast communications are critically important, In vehicular networks. It becomes a challenging problem to design a broadcast authentication scheme for secure vehicular networks. 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. In this paper, we propose an efficient broadcast authentication scheme called Prediction-based Algorithm against computation-based DoS attacks, but also resist packet losses caused by high mobility of vehicles. In contrast to most existing authentication schemes, our Algorithm is an efficient and lightweight scheme since it is primarily built on symmetric cryptography. To further reduce the verification delay for some emergency applications, it is designed to exploit the sender vehicle’s ability to predict future beacons in advance. In addition, this algorithm prevent memory-based DoS attacks, it only stores shortened rekeyed Message Authentication Codes (MACs) of signatures without decreasing security. We analyze the security of our scheme and simulate this Algorithm under varying vehicular network scenarios. The results demonstrate that PBA fast verifies almost 97% messages with low storage cost not only in high-density traffic environments but also in lossy wireless environments.

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Author(s): P.Sheela Rani, R.Vinston Raja

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