Blockchain consensus method and device

A blockchain and consensus technology, applied in the blockchain field, can solve problems such as fair selection of accounting nodes, trust issues of witness nodes, etc., and achieve the effect of solving trust problems

Active Publication Date: 2020-05-05
北京国盾量子信息技术有限公司 +1
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Problems solved by technology

[0004] In view of the above problems, the present invention provides a block chain consensus method and device, based on the us

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  • Blockchain consensus method and device

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[0074] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0075] The terms "first" and "second" in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus comprising a series of steps or units is not defined by listed steps or u...

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Abstract

The invention discloses a blockchain consensus method and a device. The method comprises the steps of determining a witness node; distributing a global key to each witness node based on a quantum keydistribution network; and selecting a node satisfying a preset condition from the witness nodes as an accounting node by using the global key and the transaction data. Due to the fact that all witnessnodes share the global secret key, the nodes meeting the preset conditions are selected through the global secret key, namely the accounting nodes are obtained through selection of the quantum lottery ticket mechanism, the trust problem of the witness nodes and the problem of fair selection of the accounting nodes in the witness nodes are solved on the basis of use of the quantum secret key.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a block chain consensus method and device. Background technique [0002] The blockchain is a distributed ledger, and each transaction participant is a node of the blockchain network, and each node has a complete backup of the public ledger, which records transaction history information. Any node that initiates a transaction needs to update the relevant information to the account book of each node in the block network, so that all nodes can participate in the verification of this transaction. How to coordinate and maintain the consistency between the various ledgers is the problem that the consensus mechanism needs to solve. [0003] The basic idea of ​​the consensus mechanism is to temporarily select a node as the bookkeeping node each time, and other nodes verify whether each transaction recorded by the bookkeeping node is true and valid. If not, the next bookkeepi...

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Application Information

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IPC IPC(8): G06F21/60G06F21/64G06Q40/04
CPCG06Q40/04G06F21/64G06F21/602
Inventor 唐鹏毅刘建宏余刚卢昌斌薛路
Owner 北京国盾量子信息技术有限公司
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