A Hierarchical Key Management Scheme for Wireless Sensor Networks Based on Identity-based Encryption

TL;DR

This paper introduces a hierarchical key management scheme for wireless sensor networks using identity-based encryption, improving network management and security while considering resource constraints.

Contribution

It proposes a novel hierarchical key management scheme based on IBE and Diffie-Hellman, enhancing security and management in resource-limited WSNs.

Findings

Scheme improves network management with hierarchical architecture

Ensures independence and security of sub-networks

Compared to flat architectures, offers better security and efficiency

Abstract

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.