Data Identity Authentication for Wireless Sensor Networks Based on Digital Watermark
For the data security issue in wireless sensor networks,this paper proposes a secure aggregation scheme based on the digital watermarking technique.We build a data fusion tree and put sensor nodes hierarchical distribution.The leaf nodes collect data and send them to the upper nodes after encrypting the data.Every intermediate node can judge the data source after receiving the packet from the children node and this can check the correctness of the data and aggregate the data.This process will be continued until the base station receives data.The analysis shows that the proposed scheme can effectively prevent the sensor data from being intercepted,and detect precisely whether the data have been tampered.Compared with other digital watermarking method,the proposed algorithm can reduce energy consumption of the individual sensor nodes and extend the life cycle of the network to a certain extent.
NETL
NSTL
万方数据
维普
