基于概率攻击图的无线传感器网络安全定位方法

A Secure Location Method for Wireless Sensor Networks Based on Probabilistic Attack Diagram

无线传感器网络一般情况下主要部署在无人看守的敌对环境中,非常容易受到攻击节点的影响,为其实际应用带来巨大挑战。而攻击图可具体描述攻击行为的多项攻击流程之间的关系。因此,提出基于概率攻击图的无线传感器网络安全定位方法,具体步骤包括进行网络部署、安全定位,完成异常节点剔除;通过实验论证,得出基于概率攻击图的无线传感器网络安全定位方法,其定位误差伴随恶意信标比例的波动并不明显,且可一直维持在较低的水平,表明节点对恶意节点进攻的抵抗能力要优于标准定位方法。

In general, wireless sensor networks are mainly deployed in unguarded hostile environments, which are very vulnerable to the impact of attack nodes, and bring great challenges to their practical applications. The attack graph can describe the relationship between the attack process. Based on this, a probabilistic attack graph based security localization method for wireless sensor networks is proposed. The specific steps include network deployment, security location, and abnormal node elimination. The experimental results show that the location error of wireless sensor network based on probabilistic attack graph is not obvious with the fluctuation of malicious beacon ratio, and can be maintained at a low level all the time. It shows that the node's resistance to the malicious node attack is superior to the standard location method.