WSN中基于阈值机制的虚假数据过滤方案

False Data Filtering Scheme Based on Threshold Mechanism in Wireless Sensor Network

传统虚假数据过滤方案无法过滤从非转发区域注入的虚假数据。为解决该问题,提出一种基于阈值机制的虚假数据过滤方案。节点在部署后建立到Sink的转发路径,每个数据包包含t个检测节点的消息验证码(MAC)以及2个安全阈值,转发节点分别对MAC和安全阈值进行正确性验证。理论分析及仿真实验结果表明,该方案能有效识别与过滤任意区域注入的虚假数据,并且具有较低的能量开销。

Aiming at the problems that the traditional false data filtering schemes can not filter false data injection attacks from non-forwarding areas, this paper proposes a false data filtering scheme based on threshold mechanism. Each node establishes a path to Sink. Each data package includes t Message Authentication Code（MAC） of detecting nodes and two security threshold parameters. Each forwarding node not only checks the correctness of the MAC but also validates the security threshold parameters. Theoretical analysis and simulation experimental results demonstrate that this scheme can resist faIse data injection attacks from arbitrary areas, and consumes less energy than existing schemes