Towards Trust-Based Security Mechanism for Wireless Sensor Networks

Wireless Sensor Networks(WSNs) bring together many applications and disciplines to capture the most intensive economical development of the century. The objective of this paper is to provide a snapshot of the trust-based security mechanism for WSNs. Three kinds of trust information are summarized. After analyzing the security problems and brief reviewing of the trust management for WSNs, a comparing study with two typical trust management models are given with the consideration of energy conservation. Experiment result shows that the new ones prolong the networks lifetime.