Reputation evaluation system and method based on block chain oracle machine

Abstract

The invention discloses a reputation evaluation system and method based on a block chain oracle machine, relates to the technical field of block chains, and solves the technical problems of poor expandability and low security caused by a centralized oracle machine architecture in the prior art. Comprising an oracle machine platform and a plurality of oracle machines, according to the method, the request content is obtained through analysis of the oracle machine platform, the oracle machine is selected in combination with the reputation level, the target data is obtained through encryption and screening of the oracle machine, and finally the target data is sent to the block chain network; according to the method, the security of the target data acquisition process is ensured, and the expandability of an oracle machine mechanism is improved; according to the method, the oracle machines are evaluated according to the on-chain behaviors of the oracle machines, the oracle machines are divided into different reputation levels, and after the request content is analyzed and acquired, the oracle machine corresponding to the optimal reputation level is selected to complete data acquisition work; the oracle machines are screened through the reputation levels, and the data accuracy and the working efficiency can be guaranteed.

Description

technical field [0001] The invention belongs to the field of block chains, and relates to a reputation evaluation technology based on block chain oracles, in particular to a reputation evaluation system and method based on block chain oracles. Background technique [0002] The oracle machine is a mechanism for writing information outside the blockchain into the blockchain. Its function is to write external information into the blockchain and realize the data interaction between the blockchain and the real world. Therefore, it is very important. effect. [0003] The existing technology adopts a centralized oracle machine architecture, so that the oracle machine runs in a trusted execution environment, and through the credible encryption proof technology, it can prove to the data demander that the data source has not been modified in the whole process, and can be audited by a third party; the existing technology There are two problems with the oracle machine in the system: 1)...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a reputation evaluation system and method based on blockchain oracles, which are used to solve the problem of centralized oracles in the prior art. The technical problem of poor scalability and low security caused by the architecture, the present invention analyzes and obtains the request content through the oracle platform, selects the oracle in combination with the reputation level, and then obtains the target data through the oracle encryption and screening to solve the problem of extensibility of the existing technology. Technical issues of poor performance and low security

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