International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
182 A Hierarchical Trust Model Based on Identity Authentication in Wireless Sensor Networks
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A trust model is proposed based on SPINS with the helpx of WSNs security framework from the perspective of identity trust. This model assumes that each sensor node shares symmetric key with Base Station (BS), needs BS's unified identity authentication in the initial-stage phase and sends live massage to BS periodically proved itself a valid node in data-transfer phase. Experiments show that this model can resist internal network attacks effectively without causing excessive energy consumption.