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An Implementation of Distance-Based Message Authentication for WSNs

Research output: Contribution to conferencePoster


Publication date02/2010
<mark>Original language</mark>English


Conference7th European Workshop on Wireless Sensor Networks (EWSN10)
CityCoimbra, Portugal
Period1/01/00 → …


Distance-Based Message Authentication (DBMA) provides an additional layer of access control and helps to defend against key compromise and denial-of-service attacks on constrained nodes. The distance between sender and receiver is measured securely. Messages sent from outside a defined physical distance can be rejected early, protecting vulnerable higher layers. We show our initial implementation using the Nanotron NA5TR1. We show how changing MAC addresses can avoid modification to ranging hardware.