无线传感器网络中的Sybil攻击检测

Sybil attacks detecting in wireless sensor networks

对Sybil攻击进行了研究,提出了一种基于地理位置信息的检测方法。利用基站和节点间传输的数据包信息检测部分Sybil攻击,构造多条路径,定义查询包,对通过不同路径到达目标节点的查询包中的字段值进行比较,再结合多跳确认机制,检测网络中的Sybil攻击。这种方法避免了传统的加密、身份认证等方法带来的高计算量和通信量,节省了节点能量。

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.