传感网单跳链路的可信性研究

Trustworthiness of single hop link in wireless sensor network

针对传感网中的伪造、重放,尤其是拒绝服务类泛洪攻击,设计了一种新的安全邻居关系——在所有相邻节点间建立起一个信任关系,通过这种信任,关系节点就有能力来限制与自己相邻的节点发送分组的速率,由此在路由发现过程中规避掉那些不受信任的节点。详细阐述了这种方案,并通过广泛的模拟实验展示了方案的可行性。实验结果显示此方案对拒绝服务类泛洪攻击是有效的。

To overcome a variety of attacks, a novel solution was proposed. The solution is to establish a trusted relation between all neighboring nodes while avoiding untrustworthy nodes during the route discovery process so as to resist DoS-style flooding attacks. This scheme was described in detail. The extensive simulation results indicate clearly that this scheme can resist DoS in wireless sensor network, and its additional overhead is reasonably low.