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A Decentralized Quantum Byzantine Consensus Method

A decentralized, Byzantine technology, applied in the field of decentralized quantum Byzantine consensus, it can solve problems such as methods that cannot be expanded, can only transmit binary messages, and the quantum consensus method does not really solve the problem of Byzantine generals strictly, so as to guarantee unconditional safety effect

Active Publication Date: 2022-07-29
NANJING UNIV
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Problems solved by technology

[0005] Purpose of the invention: The purpose of the invention is to provide a decentralized quantum Byzantine consensus method, which solves the problem that the existing quantum consensus method does not really strictly solve the Byzantine general problem, and the method cannot be extended to multiple parties; at the same time, it solves the problem that the method only The problem of being able to achieve binary consensus and only delivering binary messages

Method used

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  • A Decentralized Quantum Byzantine Consensus Method
  • A Decentralized Quantum Byzantine Consensus Method
  • A Decentralized Quantum Byzantine Consensus Method

Examples

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Embodiment 1

[0054] like Figure 4 As shown, in order to better describe the method, this embodiment specifically exemplifies the process of the five-party consensus method, wherein the malicious nodes are 2 persons. Assume that the initial master node of the initial message distribution round is S and is a good node; the remaining four nodes are ,in For good nodes, is a malicious node, in Figure 4 circled in the middle.

[0055] Specific steps are as follows:

[0056] (1) Message broadcast stage:

[0057] S1. Initial message distribution round: such as Figure 4 As shown in (a), the initial master node S is in the initial message distribution round Lieutenant General distributes messages to be agreed upon ;when When selected as the forwarder, the sender S and the forwarder use three-party quantum digital signature technology. The two parties will, in turn, serve as validators Complete three rounds of three-party quantum digital signatures, and act as the forwarder's ...

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Abstract

The invention discloses a decentralized quantum Byzantine consensus method. The method includes a message broadcasting stage and a message integration stage, wherein the message broadcasting stage is composed of multiple message distribution rounds, and in each message distribution round, a master node sends messages to the round. The other sub-nodes distribute messages, and other sub-nodes verify and record the received messages. The message distribution is realized by using the three-party quantum signature technology to ensure anti-forgery and anti-repudiation; the message integration stage is independently performed by each node. The major function is used to perform multiple rounds of statistical integration of the message statistics list in its hands, and to determine the final output message. The present invention ensures that all good nodes, that is, non-malicious nodes, will output a consistent consensus conclusion in the end; and when a good node is used as the initial master node, the message that can ensure the consistent output of all good nodes in the end is exactly the good initial master node. The value distributed by the initial message distribution round.

Description

technical field [0001] The invention relates to the technical field of quantum consensus, in particular to a decentralized quantum Byzantine consensus method. Background technique [0002] A decentralized distributed system is a decentralized network architecture jointly maintained by multiple independent and equal servers. Based on its decentralized consensus mechanism, the distributed system provides a storage and computing platform with high security and high information processing capability for the fields of finance and public services; and the decentralized consensus method that realizes the core architecture of the distributed system directly determines A series of key performances of the system, including fault tolerance, scalability, etc., have been studied, so the research on decentralized consensus methods has attracted widespread attention. [0003] The Byzantine fault tolerance problem was proposed by Leslie Lamport et al. in 1982. The work proposed the three-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L9/32G06N10/00
CPCH04L9/3247G06N10/00H04L9/083Y02D30/50
Inventor 尹华磊高睿琪翁晨洵陈增兵
Owner NANJING UNIV
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