Key Sharing in Hierarchical Sensor Networks Based on Chinese Remainder Theorem
Yanan Liu · Journal of Nantong University · 2010
A novel key agreement is proposed for a three-tier hierarchical wireless sensor network.It employs Chinese remainder theorem to establish the pairwise key between a node and its cluster head.Compared with existing key management schemes,it has a lot of good properties.First,it is optimal in saving sensor node′s storage;each node only stores two keys,which is independent from the network size.Second,the network is wholly connected,and each pair neighboring nodes can set up a unique pairwise key.Third,it requires low computation and communication overhead over the whole network.And lastly,it is resilient against the node capture attack and collusion attack.