Sybil attacks detecting in wireless sensor networks
无线传感器网络中的Sybil攻击检测

To study Sybil attacks, a llght-weight method to detect Sybil attacks was proposed. The method detected part of Sybil attacks through the transmission of packets between base station and nodes, formed mtdti-path, and defined query packets. Finally the fields in the query packets, which came to destination node from different routes, were compared. Also the method used mtdti-hop acknowledgement to generate alarm packets to detect the Sybil attacks. Different from some other methods that use encryption, identity certification and so on, this method reduces communication overhead and computations, and saves the energy of sensor nodes.