Random key pre-distribution scheme based on secure connectivity detection
Minyi Guo · Computer Engineering and Applications Journal · 2009
In recent years,researchers are paying more and more attentions on security issues in Wireless Sensor Networks (WSNs),and many solutions on these issues have been proposed.Due to the fact that the random key pre-distribution scheme is based on probability model,it is possible that some isolated nodes regarding security may exist in WSNs,and thus reducing the secure connectivity of the whole network.At the stages of both the network initialization and network operation,an improved scheme is proposed that can dynamically adjust the local connectivity of the network by means of extending the nodes’communication range and detecting the secure connectivity in WSNs.Then higher secure connectivity can be achieved in the whole network.