Summary. Wireless sensor network has drawn increasing attentions in recent years due to its wide range of applications. Often deployed in hostile environments, wireless sensor network is particularly vulnerable to malicious attacks. Thus security becomes a critical issue. This paper studies the security support for source authentication for broadcasting in wireless sensor networks. Our problem is motivated by a real sensor network application scenario -Dirty Bomb Detection and Localization, which requires efficient broadcast source authentication service in real-time. Although there exist broadcast source authentication solutions developed for wireless sensor networks, they either require significate latency in key release from a one-way hash key chain, or need a large memory space and/or involve high communication overhead. None of these solutions could meet the strict requirements from real-time communication and the limited memory space in our application. To address this issue, we present a broadcast source authentication mechanism based on multiple message authentication codes (MultiMAC). The novel contribution of this work is that it proposes a deterministic combinatorial key distribution scheme that provides scalable authentication service with limited key storage need. This authentication service is implemented as a security component in TinyOS as part of the Dirty Bomb Detection and Localization application, where its performance is validated.
In REF , the authors proposed a broadcast source authentication mechanism based on multiple MACs (Message Authentication Codes).
A Fast and Efficient Source Authentication Solution for Broadcasting in Wireless Sensor Networks
Computer Science