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The cross-regional transitivity problem of key leak exits in the most key management protocols. It's harmful to the security of system. CUT, a new key management protocol in WSN is presented. The results of simulation show CUT can solve the cross-regional transitivity problem of key leak and is scalable.
The broadcast is the important communication mode. As a new data coding method, the linear network coding can improve the data throughput of the broadcast, decrease the energy consumption of the node and reduce the data delay. How to combine the linear network coding with the broadcast in WSN in security has become the hot issue. In the paper, we introduce… (More)