Maximizing anonymity of a vehicle
- 1 December 2008
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
As a vehicle moves on the road and communicates with other vehicles or road side units, communication identity and physical identity may be linked by estimating its position. This is threat to its privacy. However, as it moves its location changes. This breaks the correlation between the vehicle and its location. The change in location also changes the neighborhood of the vehicle. This change in size and nature of neighborhood may reduce the anonymity of a vehicle. This paper addresses the challenges in providing anonymity to a moving vehicle through optimal pseudonym update. It is shown that the effective size of anonymity set reduces drastically due to change in the neighbors. The work studies the possibility that a node may retain its anonymity by updating identities in the vicinity of other vehicles to decorrelate its location and identity relation. A heuristic that allows a vehicle to switch its identity to maximize anonymity preservation is proposed. Simulation results show that updating pseudonyms in accordance to the heuristic maximizes the anonymity of a vehicle by enhancing the effective crowd cover.Keywords
This publication has 5 references indexed in Scilit:
- An Analysis Study on Zone-Based Anonymous Communication in Mobile Ad Hoc NetworksIEEE Transactions on Dependable and Secure Computing, 2007
- Swing & swapPublished by Association for Computing Machinery (ACM) ,2006
- Silent Cascade: Enhancing Location Privacy Without Communication QoS DegradationLecture Notes in Computer Science, 2006
- The node distribution of the random waypoint mobility model for wireless ad hoc networksIEEE Transactions on Mobile Computing, 2003
- Anonymous Usage of Location-Based Services Through Spatial and Temporal CloakingPublished by Association for Computing Machinery (ACM) ,2003