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A block chain consensus method based on credit evaluation

A technology of credit evaluation and block chain, which is applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problem of throughput, delay block size, difficulty in applying alliance permission chain application, data security computing power Strong dependence and other issues, to reduce the probability of abnormal nodes participating in the consensus, ensure a virtuous circle, improve efficiency and flexibility

Inactive Publication Date: 2019-05-28
HUAQIAO UNIVERSITY
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Problems solved by technology

In "A Secure Sharding Protocol For Open Blockchains", the article builds a PoW+PBFT hybrid consensus mechanism through random sharding to improve consensus performance. The article uses random selection. Although the article emphasizes that it is used in a fair environment by default, it cannot Guarantee that malicious nodes do not exceed 1 / 3 when the number of people is large enough
[0004] To sum up, although the above consensus schemes can guarantee the credibility of the blockchain to a certain extent, they cannot simultaneously solve problems such as throughput, delay, and block size; data security is highly dependent on computing power, and it is difficult to Applicable to a wide range of alliance permission chain applications

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  • A block chain consensus method based on credit evaluation
  • A block chain consensus method based on credit evaluation
  • A block chain consensus method based on credit evaluation

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0046] It should be noted that like numerals and let...

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Abstract

The invention relates to a block chain consensus method based on credit evaluation, relates to the technical field of block chain consensus, which improves the enthusiasm of nodes by introducing a credit evaluation mechanism and a voting reward and punishment mechanism based on credit, optimizes a consistency protocol and a checkpoint protocol of PBFT, and improves the efficiency and flexibility of a system. According to the method, whether the nodes participate in global consensus or not is determined according to the credit evaluation of the nodes, the nodes generating account book information are selected in an election mode, dynamic credit adjustment is conducted on the node credit according to the consensus result, and benign operation of the system is maintained. By using the methodprovided by the invention, the probability that abnormal nodes participate in consensus can be greatly reduced in long-term operation, so that the efficiency of the system is effectively improved, andthe stability of the system is remarkably enhanced.

Description

technical field [0001] The invention relates to the technical field of block chain consensus, in particular to a block chain consensus method based on credit evaluation. Background technique [0002] The consensus mechanism is one of the important components of the blockchain system. An efficient consensus mechanism is the core element of blockchain technology to solve the problem of how to reach consensus in a completely free and open network that lacks trust. In order to allow the blockchain to be used in a wider range of fields, various consensus mechanisms suitable for different applications such as PoW, PoS, DPoS, and PBFT have been proposed. These consensus mechanisms can meet the data consistency of the blockchain to a certain extent, and each has its own focus on issues such as computing power consumption, security, and consensus efficiency. The PoW (Proof of Work) consensus mechanism was used by many early virtual currencies, and hash operations were performed thro...

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Application Information

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IPC IPC(8): H04L29/08H04L12/24
Inventor 王宇昊蔡绍滨高振国周长利陈祖希
Owner HUAQIAO UNIVERSITY
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