A Hierarchical Key Management Scheme for Wireless Sensor Networks Based on Identity-based Encryption
This addresses security and efficiency problems for wireless sensor networks, but it appears incremental as it builds on existing encryption methods.
The paper tackles the challenge of implementing security in resource-constrained wireless sensor networks by proposing a hierarchical key management scheme based on identity-based encryption, which improves network management and security compared to flat architectures.
Limited resources (such as energy, computing power, storage, and so on) make it impractical for wireless sensor networks (WSNs) to deploy traditional security schemes. In this paper, a hierarchical key management scheme is proposed on the basis of identity-based encryption (IBE).This proposed scheme not only converts the distributed flat architecture of the WSNs to a hierarchical architecture for better network management but also ensures the independence and security of the sub-networks. This paper firstly reviews the identity-based encryption, particularly, the Boneh-Franklin algorithm. Then a novel hierarchical key management scheme based on the basic Boneh-Franklin and Diffie-Hellman (DH) algorithms is proposed. At last, the security and efficiency of our scheme is discussed by comparing with other identity-based schemes for flat architecture of WSNs.