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A survey and taxonomy of symmetric key management schemes for wireless sensor networks

WSN is the collection of thousands of tiny sensor nodes which have the capability of sensing, computing and transmitting the information in the network. Due to the low circuit design, it has some resource constraints but still efficient to carry the information through wireless communication. The exchange of information in a secure manner is critical in WSN. There are many techniques developed in recent years for the security purposes, one of the core areas is the key management. Key management is a challenging issue in sensor networks. In this paper classification of key management techniques for wireless sensor networks based on the encryption techniques has been presented. Also the open issues in this area are focused.