A cloud environment data integrity verification method based on fully homomorphic encryption
A data integrity, fully homomorphic encryption technology, applied in the field of information security, can solve the problems of inappropriate cloud storage massive data service mode, does not support public verification, high computational overhead, etc., to reduce communication overhead, achieve significant effects, logically tight effect
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[0039] Specific examples are given below to further describe the technical solution of the present invention in a clear, complete and detailed manner. This embodiment is the best embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
[0040] During the actual implementation of the present invention, the cloud storage server sends the calculated integrity proof to the user without including files or subsets of the files. Carry out verification calculations, and judge whether the target data block of this verification maintains integrity in the cloud according to the results of local calculations. Diffie-Hellman scheme, RSA scheme and bilinear pairing are common algorithms with homomorphic properties in this type of protocol.
[0041] Such as figure 1 As shown, a method for verifying data integrity in a cloud environment based on fully homomorphic encryption i...
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