A NTRU-Based Data Deduplication Scheme for Underwater Acoustic Sensor Networks

Abstract

Data security and storage capacity have become more important as a result of the extensive use of underwater acoustic sensor networks (UWSNs) in fields including military applications, national defense, and marine resource research. To maintain data security while cutting costs associated with transmission and storage, we propose a number theory research unit (NTRU)-based data deduplication strategy for UWSNs, coined as NTRU-based data deduplication scheme for underwater acoustic sensor networks (NTDP). The NTDP scheme is novel in three aspects. First, a novel encryption scheme is proposed to ensure data security and privacy by utilizing primitive vectors, combined with NTRU multi-key fully homomorphic encryption and certificateless signatures in an underwater resource-constrained environment. Second, we propose a dynamic partitioning algorithm, which can identify repetitions within preprocessed data blocks so as to effectively achieve data deduplication. Third but not least, the NTDP scheme embeds a secure proof of ownership (PoW) protocol to ensure semantic security, enabling surface relay devices to claim data ownership without disclosing the actual data content, thus improving the level of data privacy protection. Extensive experimental results show that the NTDP scheme effectively enhances data transmission security and improves data storage efficiency in UWSNs.