Credit data cross-chain sharing method and device based on block chain

Abstract

The invention provides a credit data cross-chain sharing method and device based on a block chain, and the method comprises the steps: building a multi-chain coordination network between a plurality of heterogeneous block chain networks, and enabling different block chain systems to be capable of building data access connection with each other; combining a Diffie-Hellman key exchange algorithm and utilizing a multi-chain coordination network to realize identity verification to complete credit data transmission. Compared with the prior art, the credit data cross-chain sharing method and device based on the block chain provided by the invention ensure the security of cross-chain interaction and the global consistency in a multi-chain scene, and enhance the security of data cross-chain sharing.

Description

Technical field [0001] The present invention relates to the field of block chains, and more particularly to a block-chain sharing method and apparatus based on a block chain. Background technique [0002] The architecture of the block chain to centralize data is not tampered with, safe and credible traceability, etc. Impact supplier credit data interaction between supply chain systems running on different zone chain networks. Different supply chain systems depends on a variety of heterogeneous block chain platforms, connect the integrated union block chain platform to play the value of the zone chain and supply chain. At present, most of the cross-chain schemes are for asset transfer or inter-chain sharing between payment systems. It is not possible to fully apply to supplier credit data sharing, which is less plan for resolving the supplier credit data across chain sharing. The authentication between the chain nodes and the safety protection methods during the transition data tr...

AI Technical Summary

Problems solved by technology

Heterogeneous blockchains cause supplier management departments to query sufficient credit information about suppliers, and need to understand the technical architecture and protocol specifications of each supply chain platform blockchain, which makes data access and query management more difficult

[0006] (2) Chains are isolated from each other, and information islands still exist

[0007] Each blockchain of different supply chains operates independently in a closed loop, and there is no information interaction between different chains, so it is difficult to form comprehensive and complete credit data for specific suppliers. Supplier management departments may need to pay repeated entry costs when entering different chains, especially It is necessary to traverse all chains, which will easily cause the lack of integrity of credit data

[0008] (3) Each chain is self-contained and lacks interoperability

[0009] Each chain is an independent, vertical closed system, each adopting a different consensus mechanism and verification method for generating blocks, and there is a lack of interoperability between chains when performing data credit reporting and data sharing across chains

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