Encrypted data verification method, device and equipment and storage medium

Abstract

The embodiment of the invention discloses an encrypted data verification method and device, equipment and a storage medium, and is applied to the field of zero knowledge proof and the field of digitalmedical treatment. The method comprises the following steps: obtaining first encrypted data, second encrypted data, an order-preserving signature and an equivalent signature from a blockchain; wherein the first encrypted data is composed of a plurality of first encrypted sub-data, and the second encrypted data is composed of a plurality of second encrypted sub-data; determining a first public keybased on the first encrypted sub-data and the sequence of the first encrypted sub-data and the sequence of the second encrypted sub-data and the sequence of the second encrypted sub-data, and performing signature verification on the order-preserving signature; and if the signature verification of the order-preserving signature is not passed, determining a second public key based on the first encrypted sub-data and the second encrypted sub-data, and performing signature verification on the equivalent signature based on the second public key. By adopting the embodiment of the invention, encrypted data verification scenes can be enriched, and the verification efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of blockchain, and in particular to an encrypted data verification method, device, equipment and storage medium. Background technique [0002] With the development of blockchain technology, in order to achieve safe data sharing, all data is encrypted and stored in the form of ciphertext, which brings a lot of inconvenience while ensuring data security. For example, in the field of digital medicine, it is necessary to establish electronic information files for the supply information of medical equipment. In a traditional blockchain project, if you want to determine whether the data that the supplier ordered multiple batches of goods is consistent with the data that the manufacturer wants to produce multiple batches of goods, you need to store the supplier and the manufacturer in the blockchain. Only when the values ​​of the data of both parties are equal and the storage order is consistent can the ...

AI Technical Summary

Problems solved by technology

However, the downstream dealers only know the value of the goods and the order of arrival of the goods, they do not know the order order of the suppliers, nor the production order of the manufacturer, so they cannot pass the verification and cannot realize data sharing, which brings great difficulties to the operation. Inconvenience

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