| Summary: | 碩士 === 國立暨南國際大學 === 資訊工程學系 === 102 === Wormhole attack is that there are two malicious in wireless sensor networks attackers attempt to consume power sensors and destruction routing protocol. Attacker's approach is to capture two sensors and modified or copied, and then put back sensor network environment. Such behavior can lead normal sensors continually resend packets or can’t find the path back to the data collection stations. Wormhole attacks can easily subvert many network protocols and maliciously sink a large amount of traffic. As many new mobile applications emerge recently, the threat posed by wormhole attacks increases drastically. Research efforts have been conducted to develop countermeasures for wormhole attacks. Most of the defenses depend either incur significant communication burden or require special hardware and knowledge.
In this paper, we, based on sequential probability ratio test (SPRT), develop a wormhole detection method with extremely light overhead, by examining the properties of neighboring nodes for each round. Use sequence probability ratio test method can improve the detection of wormhole detection rate and improve fault tolerance judgment wormhole.
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