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A new dynamic pair-wise key establishment algorithm without requiring keys pre-distribution is proposed. In the scheme, each node does not require any pre-assigned keys before deployment, and after deployment, for any two nodes, they will establish a different direct pair-wise key between them dynamically during each session. Theoretic analysis and simulation results show that the probability of direct...
Wireless sensor networks are open architectures, so any potential threat can easily intercept, wiretap and counterfeit the information. Therefore, the safety of WSN is very important. Since any single key system cannot guarantee the security of the wireless sensor network for communications, this paper introduces a hierarchical key management scheme based on the different abilities of different sensor...
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