On Sybil attack in wireless sensor networks
无线传感器网络中的Sybil攻击

A novel detection mechanism, called Cooperative RSS-based Sybil Detection (CRSD) used in static and resource-limited Wireless Sensor Networks (WSN) was proposed. CRSD took use of the Received Signal Strength (RSS) to induce the distance between two nodes and further determined the positions of the identities of interests by use of the RSS information from multiple neighbor nodes. A Sybil attack was detected when two or more different identities with almost the same position were got. The simulations and results show that, first, Sybil attack can certainly deteriorate the system performance significantly and furthermore, CRSD can detect such attack in most cases and thus facilitate the avoidance of using Sybil node to protect the overall performance effectively.