A dpos consensus method and system based on threshold signature and fair reward

Abstract

The present invention relates to the technical field of DPoS consensus, and discloses a DPoS consensus method based on threshold signatures and fair rewards, including the following steps: Step 1: In the initial node voting stage, a plurality of self-nominated nodes are finally selected to enter the witness candidate pool; Two: Use a verifiable delay function to select 21 witnesses; Step three: The witnesses perform the threshold signature consensus stage; Step four: The round of consensus ends and the reward stage is issued. The DPoS consensus method and system based on threshold signature and fair reward can realize a fair reward and decentralized blockchain consensus system without a trusted third party, which can significantly speed up the verification speed so that The number of transactions per second has increased significantly.

Description

technical field [0001] The invention relates to the technical field of DPoS consensus, in particular to a DPoS consensus method and system based on threshold signatures and fair rewards. Background technique [0002] Blockchain is a new type of decentralized distributed system that has become popular with the gradual rise of digital cryptocurrencies such as Bitcoin. It has the characteristics of decentralization, time series data, collective maintenance, programmability, safety and credibility. At present, the blockchain has attracted great attention and widespread attention from government departments, financial institutions, technology companies and capital markets. How to efficiently reach a consensus in a decentralized distributed system is an important issue in the research of blockchain technology. [0003] To make the blockchain a decentralized, honest and credible system that is difficult to break, open, and cannot be tampered with data records, it is necessary to m...

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Problems solved by technology

[0012] Aiming at the deficiencies of the prior art, the present invention provides a DPoS consensus method and system based on threshold signatures and fair rewards, which can realize a fair reward, decentralized, The advantage of the blockchain consensus system that speeds up the verification speed and greatly increases the transaction volume per second solves the problem of DPoS with only 21 nodes fixedly producing blocks, which leads to serious centralization problems. Since the block rewards are only given to 21 witnesses and candidate nodes , ordinary nodes will not get any rewards, which makes the voting enthusiasm of ordinary nodes very low. This type of consensus lacks a sufficiently fair incentive mechanism. In DPoS, the witnesses verify the block through PBFT, and the block must be attached Only 2 / 3 of the witnesses’ signatures are considered valid. Since each node needs to broadcast the block to each other and update its own local database, so many signatures attached to the block need to be verified by other nodes one by one, making the nodes The problem of increased communication overhead between

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