A Lightweight Signcryption Protocol for Multihop Data Aggregation in Wireless Sensor Networks
Radhakrishnan Maivizhi, Palanichamy Yogesh · 2024
Data aggregation is a fundamental and inherent technique for increasing the lifespan of wireless sensor networks. By combining multiple data into a single one, it conserves the bandwidth and energy of sensor nodes. To preserve the privacy of aggregated data, security features are added during the aggregation process. Nevertheless, the addition of security features increases the computational cost of data aggregation algorithms. To overcome this issue, this paper proposes a lightweight Signcryption protocol for Multihop Data Aggregation (SMDA) in wireless sensor networks. The proposed protocol, due to its homomorphic feature, preserves privacy and significantly reduces the computational overhead of sensor nodes. Also, the proposed SMDA protocol is oracle free. Without executing signing algorithms, it can generate signatures on aggregated ciphertext during transmissions. In addition, the proposed scheme validates the signatures in batches and the signature verification cost does not depend on the number of messages. Extensive security analysis demonstrates that the proposed protocol meets the security requirements of WSNs. Furthermore, the results of performance evaluation proves that the computational efficiency of the proposed protocol outperforms other existing secure aggregation schemes.