MHIP: Effective Key Management for Mobile Heterogeneous Sensor Networks.
Dulal Chandra Kar, Rashad Tatum, Keith Zejdlik · 2013
Security for mobile wireless sensor networks has many unique challenges. Existing security protocols have serious drawbacks revoking compromised nodes from the network, replenishing the network with new nodes in secure manner, and performing in network processing if nodes migrate from one cluster to another. In this work, we propose a new energy-efficient protocol that provides security for a heterogeneous mobile WSN. The protocol is based on Identity Based Encryption (IBE) which facilitates communication-efficient key establishment among the nodes in a WSN as well as revocation of compromised nodes from or addition of new nodes to the network. It also has a mechanism to recover the nodes of a compromised cluster and bind them to other neighboring clusters. The proposed protocol is scalable as the protocol's storage, communication, and computation overheads remain constant regardless of the size of the network. Our analysis of the protocol shows that it can provide security against various threats and attacks including the Sybil attack.