Recovery in distributed systems using optimistic message logging and check-pointing
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Denial of Service in Sensor Networks
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Defending against path-based DoS attacks in wireless sensor networks
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IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
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Service vulnerability scanning based on service-oriented architecture in Web service environments
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Future Generation Computer Systems
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Wireless sensor networks represent a new generation of real-time embedded systems with significantly different communication constraints from the traditional networked systems. With their development, a new attack called a path-based DoS (PDoS) attack has appeared. In a PDoS attack, an adversary, either inside or outside the network, overwhelms sensor nodes by flooding a multi-hop end-to-end communication path with either replayed packets or injected spurious packets. Detection and recovery from PDoS attacks have not been given much attention in the literature. In this article, we consider wireless sensor networks designed to collect and store data. In a path-based attack, both sensor nodes and the database containing collected data can be compromised. We propose a recovery method using mobile agents which can detect PDoS attacks easily and efficiently and recover the compromised nodes along with the database.