A Hybrid Key Management Approach for Secure Communication in Wireless Sensor Networks

Wireless Sensor Networks(WSN) used in a variety of applications are usually unattended in nature and are highly susceptible to attacks such as eavesdropping, hardware tampering and false messages. For secure communication among the nodes, Secret key cryptography is used since it provides high security with low computing power. Existing key management schemes does not guarantee the level of security and network performance. To handle such problems, random seed distribution with transitory cluster key, a hybrid approach is used which is the integration of both random key distribution and the transitory master key. The security analysis shows that our approach provides enhanced resilience and better connectivity by establishing secure channels among the communicating nodes in a hierarchical clustered wireless sensor network. It over persuades the state-of-the-art protocols by providing always the best security features.