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Fog-assisted data integrity auditing scheme with deduplication function for cloud storage
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AI
DOI：10.1016/j.cose.2026.104951.png)
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Abstract
En 中文
Cloud storage can not only effectively solve the burden of data owner (DO) storing data locally, but also provide convenient access and sharing services. In cloud storage, deduplication of the same data file can not only save storage resources for cloud server, but also reduce a certain amount of expenses for DO. More importantly, the integrity of stored data determines whether DO continues to enjoy cloud storage services. However, current research tends to separate deduplication from auditing. In this paper, a system is designed by integrating them together based on multiple fog nodes assistance. Specifically, first, multiple fog nodes use threshold technology to generate encryption key and authentication key for the same data file, ensuring the correctness and efficiency of the deduplication function. Second, utilizing a Blockchain maintained by these fog nodes to perform audit tasks guarantees the correctness, transparency, and immutability of the audit process. Finally, the security and performance analysis on the proposed system will be discussed. The results indicate that the proposed system is secure in deduplication and auditing processes, and also has certain advantages in terms of performance.
Keywords:
deduplication
cloud storage
data integrity auditing
fog computing
blockchain
Journal
C
IF:
5.4
Papers:
189
Citations:
0
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