Unlock instant, AI-driven research and patent intelligence for your innovation.

A Data Interaction Method Based on Local-Global Blockchain Collaboration

A data interaction and blockchain technology, applied in digital transmission systems, secure communication devices, and key distribution, can solve problems such as low data interaction efficiency and difficult data sharing in blockchain, and achieve the effect of improving efficiency

Active Publication Date: 2021-08-17
NORTHEASTERN UNIV LIAONING
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the differences in the data management methods of various departments, it is difficult to achieve data sharing among various blockchains, and the efficiency of data interaction is relatively low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Data Interaction Method Based on Local-Global Blockchain Collaboration
  • A Data Interaction Method Based on Local-Global Blockchain Collaboration
  • A Data Interaction Method Based on Local-Global Blockchain Collaboration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The data interaction method based on local-global blockchain collaboration of the present invention includes the following steps:

[0034] Step 1: Build as figure 1 The shown local-global blockchain collaborative framework includes global blockchain GBC, I local blockchain {LBC 1 ,LBC 2 ,...,LBC i ,...,LBC I}; Among them, the verification node set of the global blockchain GBC is SGBC ={gn 1 ,gn 2 ,...,gn p ,...,gn P}, gn p is the pth verification node of the global blockchain GBC, p∈{1,2,…,P}, P is the total number of verification nodes of the global blockchain GBC; LBC i is the i-th local blockchain, i∈{1,2,…,I}, local blockchain LBC i The verification node set of is ln iq For local blockchain LBC i The qth verification node of , q∈{1,2,…,Q i}, Q i For local blockchain LBC i The total number of verification nodes;

[0035] Step 2: When the user requests to write data, such as figure 2 As shown, execute steps 3 to 4; when the user requests to query da...

Embodiment 2

[0056] The difference between the second embodiment and the first embodiment above is that:

[0057] User U 1 Request query data, will sign sig 1 Sent to each verification node in the global blockchain GBC. Each verification node in the global blockchain GBC queries the data on the global blockchain from the blockchain head to the blockchain head. Each verification node in the global blockchain GBC queries that the signature is sig 1 The data on the chain will broadcast a message, when more than 5 verification nodes query the same data on the chain * ,LBC * ,sig 1 >, from query to on-chain data * ,LBC * ,sig 1 >Randomly select a verification node from the verification nodes as the master node, and the verification node gn 1 is selected, the master node gn 1 The fifth message is broadcast, and other verification nodes in the global blockchain GBC stop the data query operation after receiving the fifth message. master node gn 1 The data on the chain obtained according ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of computer block chains, and provides a data interaction method based on local-global block chain collaboration. First build a local-global blockchain collaborative framework; when a user requests to write data, the verification node of the local blockchain signs the original data, selects the master node and uses the original data to construct a block to access the local blockchain, and the global blockchain The verification node of the block chain extracts the abstract from the original data and signs it, selects the master node and uses the metadata of the original data to construct a block to access the global block chain; when the user requests to query data, the signature is sent to the verification of the global block chain Nodes, verification nodes query the data on the chain and broadcast it. When more than half of the verification nodes query the same data, they select the master node. The master node queries the original data on the corresponding local blockchain according to the queried metadata, and returns the query to of the original data. The present invention can realize data sharing between local blockchains and improve the efficiency of data interaction.

Description

technical field [0001] The invention relates to the technical field of computer block chains, in particular to a data interaction method based on local-global block chain collaboration. Background technique [0002] Blockchain is a decentralized database for distributed data storage. There is no central node, and the tasks of all nodes are the same and equal. The blockchain system is completely open and transparent, and the recorded information is open and transparent to all nodes in the blockchain system, realizing safe data sharing. In addition, the blockchain introduces a block-based chain structure and consensus mechanism to ensure data security and tamper-proof modification. [0003] Common data interactions in the blockchain mainly include data writing and data query. In the process of data writing, a node with record rights is elected through the consensus mechanism, and the node uses the data to build a Merkle tree and then packs it into a block, and then connects ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08H04L29/08
CPCH04L9/0869H04L9/3247H04L9/3265H04L67/1097
Inventor 信俊昌姚钟铭郝琨王之琼蒋忠中范子嘉罗艺栖陈金义
Owner NORTHEASTERN UNIV LIAONING