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A Byzantine fault-tolerant consensus method and system based on node scoring

A Byzantine and node technology, applied in the field of Byzantine fault-tolerant consensus method and system based on node scoring, can solve the problems that the node selection algorithm is too simple, does not make full use of network advantages, and is not suitable for complex networks

Active Publication Date: 2021-10-19
南京劭衍智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. High communication complexity;
[0005] 2. Not suitable for complex networks;
[0006] 3. The advantages of the network are not fully utilized, and the node selection algorithm is too simple;

Method used

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  • A Byzantine fault-tolerant consensus method and system based on node scoring
  • A Byzantine fault-tolerant consensus method and system based on node scoring
  • A Byzantine fault-tolerant consensus method and system based on node scoring

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Embodiment Construction

[0081] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0082] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0083] According to an embodiment of the present invention, a Byzantine fault-tolerant consensus method based on node scoring, figure 1 A flow chart showing a Byzantine fault-tolerant consensus method based on node scores according to an embodiment of the present invention. ...

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Abstract

The present invention proposes a Byzantine fault-tolerant consensus method and system based on node scoring, including taking relevant important information of nodes as the scoring standard, and scoring each node through the analytic hierarchy process, and then on the basis of PBFT and SBFT, according to the node Scoring changes the communication complexity of nodes from all‑to‑all to all‑to‑c (c is a small constant), and selects a subset of confirmation nodes through node scoring, which reduces communication complexity and improves consensus speed, and can support more nodes to participate in the consensus; in addition, a view change mechanism for the confirmation node subset is established. mechanism, this scheme can work well in a network with many malicious nodes, makes good use of resources, and reduces communication complexity. This scheme can work well in complex networks that conform to reality, and can also work well in networks with many nodes.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a Byzantine fault-tolerant consensus method and system based on node scoring. Background technique [0002] Satoshi Nakamoto first proposed Bitcoin in 2008, and blockchain technology has received more and more attention from people from all walks of life. The application of blockchain technology to the electronic medical record system can break the island phenomenon of medical data, and more useful information can be shared by more users by placing it on the blockchain. Hospitals and research institutions can better research and analyze diseases through medical big data after user authorization. Through the various characteristics of the blockchain, the data cannot be tampered with and the privacy of users can be protected. Users, hospitals and other institutions can achieve a perfect balance in medical data. According to statistics, there are 773 tertiary hospitals, 6,780...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/08
CPCH04L41/0663H04L41/0668H04L41/22H04L67/1051H04L9/50
Inventor 蔡绍滨王宇昊张妍
Owner 南京劭衍智能科技有限公司