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The Scientific World Journal
Volume 2014 (2014), Article ID 740216, 8 pages
Research Article

A Group Based Key Sharing and Management Algorithm for Vehicular Ad Hoc Networks

1University Institute of Information Technology, PMAS Arid Agriculture University, Rawalpindi 46000, Pakistan
2College of Computer and Information Science, Al Imam Muhammed Ibn Saud Islamic University, Riadyh 11187, Saudi Arabia
3Qassim University, Qassim 51431, Saudi Arabia
4Qassim Colleges, Qassim 51452, Saudi Arabia

Received 28 August 2013; Accepted 28 October 2013; Published 22 January 2014

Academic Editors: P. Melin and Z. Shi

Copyright © 2014 Zeeshan Shafi Khan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Vehicular ad hoc networks (VANETs) are one special type of ad hoc networks that involves vehicles on roads. Typically like ad hoc networks, broadcast approach is used for data dissemination. Blind broadcast to each and every node results in exchange of useless and irrelevant messages and hence creates an overhead. Unicasting is not preferred in ad-hoc networks due to the dynamic topology and the resource requirements as compared to broadcasting. Simple broadcasting techniques create several problems on privacy, disturbance, and resource utilization. In this paper, we propose media mixing algorithm to decide what information should be provided to each user and how to provide such information. Results obtained through simulation show that fewer number of keys are needed to share compared to simple broadcasting. Privacy is also enhanced through this approach.