关键词: 无线传感器网络, 虚假数据过滤, 消息验证码（MAC）, 密钥池

Abstract: Aiming at the problems that the traditional false data filtering methods can’t filter false data injection attacks from non-forwarding areas of compromised nodes, this paper proposes a forwarding path-undependent filtering scheme in wireless sensor networks. In PFDF, a global key pool is constructed according to the expected keys-sharing degree, and each node initializes a key before deployment. Analysis and simulation results demonstrate that PFDF can resist false data injection attacks from non-forwarding areas of compromised nodes, and consumes less energy than existing schemes.

Key words: wireless sensor network, false data filtering, Message Authentication Code（MAC）, key pool