Compromised nodes could launch several attacks in wireless sensor network. The easiest way is to fabricate a report that doesn’t happen actually or to send incorrect data. Such attack will result in not only false alarm but also the energy consumption of intermediate nodes to forward this report. There are many schemes proposed to solve this problem. They use the idea that a legitimate report must consist of several endorsements given by multiple surrounding nodes that also sense the same event. However, the compromised node also can give false endorsement on real event causing the real report to be considered a false data and be filtered out. We proposed a filtering scheme to counter some related attacks, analyzed filtering effectiveness, resiliency, storage and energy saving, and held simulation to show it is more efficient than the other solutions.
Proceedings of the 2008 International Computer Symposium (ICS 2008)，6頁