Date Added: Jun 2011
In this paper, an efficient Forward Secure Elliptic Curve Signcryption Key Management (FS-ECSKM) Scheme for Heterogeneous Wireless Sensor Networks (HWSN) has been proposed. The proposed protocol is optimized for cluster sensor networks and is efficient in terms of complexity, number of message exchange, computation, and storage requirements with optimized security benefits for clustered environment. In addition to the message confidentiality, authentication, unforgeability and non repudiation, the proposed scheme achieves forward secrecy, public verification, and encrypted message authentication. The performance evaluation shows that this scheme can provide also extra saving in storage space compared with other previous schemes.