Privacy protection method of distributed cloud storage system

Abstract

The invention discloses a privacy protection method of a distributed cloud storage system, comprising a user, a miner, a storage provider, system initialization, file uploading, file sharing, file downloading, file deletion and the like. The invention combines the distributed cloud storage system with the block chain technology, and regards the file ownership processing process as the transactionprocessing, thereby realizing the privacy protection of the file ownership processing process in the distributed cloud storage system, including the hiding of the sender, the receiver and the transaction content. In addition, the invention can effectively resist the replay attack and the data forgery attack while ensuring the privacy of the user.

Description

technical field

[0001] The invention relates to a distributed storage technology, in particular to a privacy protection method for a distributed cloud storage system. Background technique

[0002] With the development of cloud storage technology, users can easily outsource data to the cloud, and perform operations such as sharing, downloading, and modifying data in the cloud. However, the traditional cloud storage model almost exclusively relies on centralized cloud servers to provide services. This model based on client-server trust has some inherent weaknesses and is vulnerable to attacks, such as man-in-the-middle attacks, malware attacks, central A standardized server may also cause data unavailability and leakage of user privacy due to technical failures. Distributed cloud storage can better solve these problems. Common distributed cloud storage systems include HDFS, Ceph, Pangu, etc. The distributed cloud storage system removes the centralized server and ensures the...

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