Batch self-auditing method for cloud storage data
A cloud storage and data technology, applied in the field of information security, can solve problems such as data leakage of cloud users, and achieve the effect of ensuring confidentiality
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[0029] Describe technical scheme of the present invention in detail below:
[0030] The steps of the present invention are divided into four parts:
[0031] System initialization: The system generates a public-private key pair based on an elliptic curve digital signature algorithm, a public-private key pair for lightweight signatures on file names, and a secure lightweight symmetric encryption algorithm.
[0032] Signature generation steps: the user uses the improved Elliptic Curve Signature Algorithm (ECDSA) to calculate their digital signatures for multiple data files, and at the same time digitally signs different data file names to generate data file labels, and stores these multiple sensitive data files Perform symmetric encryption. Finally, these signatures and the ciphertext of the data file are sent to the cloud server, and these data are deleted on the local client.
[0033] Audit proof generation steps: In order to batch audit the integrity of the outsour...
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