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Recently, distributed data storage has gained increasing popularity for reliable access to data through redundancy spread over unreliable nodes in Wireless Sensor Networks (WSNs). However, without any protection to guarantee the data integrity and availability, the reliable data storage can not be achieved since sensor nodes are prone to various failures, and attackers may compromise sensor nodes to pollute or destroy the stored data. Therefore, how to design a robust sensor data storage scheme to efficiently guarantee the data integrity and availability becomes a critical issue for distributed sensor storage networks. In this paper, the authors propose a distributed fault/intrusion-tolerant data storage scheme based on network coding and homomorphic fingerprinting in volatile WSNs environments.
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