Cloud server storage integrity detection method and system
A technology of integrity detection and cloud server, applied in transmission systems, electrical components, etc., to achieve the effects of protecting anonymity, realizing quantitative storage, and ensuring anonymity
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[0064] In order to solve the problems of data deduplication and user identity anonymity of the cloud server, the present invention proposes an efficient cloud server storage integrity detection method that supports data deduplication and user identity anonymity. Different from traditional cloud servers, the cloud server supporting data deduplication provided by the present invention can know the identities of different users who own the same file, so that the cloud server can infer the attributes of the encrypted file according to the identities of these users. For example, if the users who own the file are all students, then the file content should be educational. Of course, with the refinement of user identities, there will be more guessed file contents, which seriously leaks the user's data privacy. In this approach, the authenticator required for user-generated audits does not contain any information about the user's identity. Moreover, when a user downloads a file, it on...
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