A multi-backup data holdings certification method in cloud storage environment
A technology of backing up data and cloud storage, applied in transmission systems, electrical components, etc., can solve the problems of unaffordable users and high cost of label calculation.
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[0081] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0082] There are two roles in the scheme, such as figure 1 As shown, the user and the cloud service provider (CSP). The user is responsible for preprocessing the file, uploading the file to the cloud storage server, initiating a challenge to the CSP, and verifying the evidence returned by the CSP. Such as image 3 As shown, the CSP is composed of a cloud storage management node and multiple storage nodes. The cloud storage management node is responsible for managing the user's files, and all metadata of the files are stored on the management node. Cloud storage nodes are responsible for storing user data and computing evidence.
[0083] ●User
[0084] The user is the owner of the file, and is responsible for preprocessing the file during the file upload stage, including generating a key, cutting the file into pieces, generating a copy of the file, ...
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