Adaptive Message Authentication for Multi-Hop Networks

Recent benchmarks indicate that the use of public key cryptography results in non negligible verification times on platforms with limited processing power. In this paper, we focus on multi-hop Inter-Vehicle Communication and show that the increase in message processing time in vehicular nodes degrades network performance, decreasing the number of messages that reach destinations. We propose Adaptive Message Authentication (AMA), a lightweight filtering scheme that reduces the number of cryptographic operations performed by the nodes. Although based on local observations and without any additional communication channel between the nodes, our scheme achieves global improvement of network performance. We perform extensive simulations and show that our scheme resists DoS attacks and brings significant improvement even against a substantial number of adversaries in the network.


Published in:
The 8th International Conference on Wireless On-demand Network Systems and Services
Presented at:
The 8th International Conference on Wireless On-demand Network Systems and Services, Bardonecchia, Italy, January 26-28, 2011
Year:
2011
Keywords:
Laboratories:




 Record created 2010-12-07, last modified 2018-03-18

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