Distributed storage consistency verification method and device

Abstract

The invention discloses a distributed storage consistency verification method and device, and the method comprises the steps that a verification side obtains each ciphertext of the same plaintext andzero-knowledge proof corresponding to each ciphertext from each storage side of distributed storage, wherein the zero knowledge proof comprises an alternative text of the ciphertext, a binding relationship between the plaintext and the alternative text, a first hash value and each encryption public key, then for each ciphertext, according to the binding relationship between the plaintext, the encryption public key of the ciphertext, the first hash value and the ciphertext, a verification text is obtained, and when the verification text is consistent with the alternative text of the ciphertext,each ciphertext is determined to be obtained through the same plaintext, and the consistency of each ciphertext is proved, so that the consistency of a plurality of ciphertexts of each plaintext stored in a distributed manner is proved.

Description

technical field [0001] The present invention relates to the field of financial technology (Fintech), in particular to a method and device for verifying the consistency of distributed storage. Background technique [0002] With the development of computer technology, more and more technologies (such as blockchain, cloud computing or big data) are applied in the financial field. The traditional financial industry is gradually transforming into financial technology, and big data technology is no exception. However, due to The security and real-time requirements of the financial and payment industries also put forward higher requirements for big data technology. [0003] Data privacy is one of the most important topics in today's society. Protecting the privacy of personal data associated with an individual's identity is critical and will continue to grow in importance. Therefore, in order to prove that certain private data is real, zero-knowledge proof technology is introduce...

AI Technical Summary

Problems solved by technology

However, at present, the verifier cannot verify whether the plaintext corresponding to the ciphertext of each storage party is the same, that is, whether the multiple ciphertexts of the storage party are obtained from the same plaintext, and it cannot guarantee that the ciphertext of each storage party the accuracy of

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