Secure monitoring scheme for wireless sensor networks based on identity signcryption

Based on Cheng-Liu-Wang identity-based signature scheme and Baek-Zheng pairing-based verifiable secret sharing scheme, a new secure monitoring scheme using identity-based threshold signcryption scheme for wireless sensor networks is proposed. The goal of this scheme is to provide a confidential and authenticated transmission channel for monitoring messages sent by nodes to BS over an insecure wireless sensor network. In this scheme, to resist node-capture attacks, instead of a whole private key, every node only has a sharing of a local private key. To promoting alarm´s trust level, several nodes execute signcryption in cooperation. In additions, this scheme deduces individual node´s computation cost and communication cost, so can meet the special characters of the wireless sensor networks.