Blockchain-based information confirmation method and device, electronic device and storage medium

Abstract

The invention discloses a blockchain-based information confirmation method and device, electronic equipment and storage medium, and relates to the technical field of blockchain. The confirmation method includes: receiving a transaction message transmitted by a secure computing node, and based on the transaction message It obtains the transaction data required for the secure computing transaction, sends the transaction data to the secure computing node, receives the calculation results transmitted by multiple secure computing nodes, and performs joint computing on the multiple computing results to obtain the joint computing result. , using a pre-configured consensus mechanism to verify the correctness of the joint calculation results, obtain consensus information, and broadcast the consensus information to the blockchain. The invention solves the technical problem of low security computing efficiency in the related art under the condition of ensuring the safe sharing of data among the participants.

Description

technical field [0001] The present invention relates to the technical field of blockchain, and in particular, to a method and device for confirming information based on blockchain, an electronic device and a storage medium. Background technique [0002] In the traditional distributed system, all parties involved in the system need to exchange data around the regional central system. All business processes between institutions in the system must be processed by the central system. Data processing is subject to the processing time of the central system. The timeliness is low. At the same time, due to the consideration of data privacy and business interests, all participants in the system are unwilling to maliciously share internal data. Even if the leaked private pictures and documents are found, there is no way to trace and seek right. [0003] With the development of blockchain technology, the decentralization, non-tampering, traceability and other characteristics of the bl...

AI Technical Summary

Problems solved by technology

However, there are still the following problems in terms of user data privacy protection: (1) Although the blockchain has a relatively safe operating environment, the data is essentially private, and the participants have no data control and traceability means for their own data. It is also impossible to guarantee that the data is under its own control. For example, in the blockchain system, once the data is taken away, the participants will no longer have the control and ownership of the data; (2) the blockchain has a physical channel data isolation mechanism, The data between channels is invisible to each other, which limits the application of trusted data transfer between parties on the blockchain across scenarios and organizations

[0004] In related technologies, multi-party secure computing is used as an encryption protocol to perform data calculation in a distributed system. During the calculation process, each participant jointly executes a calculation function with parameters under the condition that the input parameters of other participants cannot be obtained. If the calculation function gets input parameters from enough participants, the secret can emerge and spread within the scope of the common participants. Although this method can perform safe and confidential calculations on the data without each participant needing to disclose or upload data, However, it also increases the number of interactive communications for multi-party secure computing. If the multi-party computing parties are described as a circle, theoretically, the number of interactive communications in the multi-party computing process is proportional to the number of members that make up the circle. In this case, the number of interactive communications will have a great impact on the performance of secure computing

[0005] For the above problems, no effective solution has been proposed

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