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Wireless sensor network (WSN) security is a critical issue due to its inherent characteristic and unattended operation which makes it vulnerable to many attacks. Key management plays a fundamental role for providing security services to such networks. In this paper, we aim to reduce the node capture impact by incorporating an efficient adversarial model for cellular model of WSN. The adversarial model...
Wireless sensor networks are often placed in hostile and unattended areas, making the nodes exposed to many attacks. Node capture is one of the prominent attack in such networks. Whenever, a node is captured, its keys have to be revoked from the network by means of rekeying. We aim to optimize the problem of key revocation and rekeying by reducing the communication and computation overhead. An attack...
Several dynamic key management schemes have been proposed for wireless sensor networks (WSNs). However, only few have focused specifically on wireless sensor and actor networks (WSANs). This paper proposes an actor node based rekeying scheme for WSANs which follows a three-tier automated architecture. The proposed scheme assigns the responsibility of rekeying to the resource-rich actor nodes, which...
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