FileDES: A Secure Scalable and Succinct Decentralized Encrypted Storage Network
IACR Cryptol. ePrint Arch.(2024)
摘要
Decentralized Storage Network (DSN) is an emerging technology that challenges
traditional cloud-based storage systems by consolidating storage capacities
from independent providers and coordinating to provide decentralized storage
and retrieval services. However, current DSNs face several challenges
associated with data privacy and efficiency of the proof systems. To address
these issues, we propose FileDES (Decentralized Encrypted
Storage), which incorporates three essential elements: privacy
preservation, scalable storage proof, and batch verification. FileDES provides
encrypted data storage while maintaining data availability, with a scalable
Proof of Encrypted Storage (PoES) algorithm that is resilient to Sybil and
Generation attacks. Additionally, we introduce a rollup-based batch
verification approach to simultaneously verify multiple files using publicly
verifiable succinct proofs. We conducted a comparative evaluation on FileDES,
Filecoin, Storj and Sia under various conditions, including a WAN composed of
up to 120 geographically dispersed nodes. Our protocol outperforms the others
in terms of proof generation/verification efficiency, storage costs, and
scalability.
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