On the Efficiency of Secure Beaconing in VANETs


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Schoch, Elmar and Kargl, Frank (2010) On the Efficiency of Secure Beaconing in VANETs. In: Proceedings of the third ACM conference on Wireless network security (ACM WiSec 2010), Hoboken, New Jersey, USA (pp. pp. 111-116).

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Abstract:Direct inter-vehicle communication enables numerous safety applications like intersection collision warning. Beacons - periodic one-hop link-layer broadcast messages containing, e.g., location, heading, and speed - are the basis for many such applications. For security, current work often requires all messages to be signed and to carry a certificate to ensure integrity and authenticity. However, high beacon frequency of 1 - 10 Hz and dense traffic situations lead to significant communication and computational overhead. In this paper, we propose several mechanisms to significantly reduce this overhead while maintaining a comparable level of security. The general idea is to omit signatures, certificates, or certificate verification in situations where they are not necessarily required. This creates a security-performance trade-off that we analyze in detail. The results show that significant savings can be achieved with only small impact on security.
Item Type:Conference or Workshop Item
Copyright:© 2010 ACM
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/72419
Official URL:http://dx.doi.org/10.1145/1741866.1741885
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