ISM-based improved PBFT consensus method

Abstract

The invention discloses an improved PBFT consensus method based on ISM. The method comprises the following steps: firstly, constructing ISM through a transaction relationship between blockchain nodes,and layering blockchain consensus nodes; and expanding from bottom to top, taking a bottom layer node as a consensus center node and a sub-bottom layer node as a consensus first-level node, and so on, defining a block chain consensus node layering method, and establishing a block chain consensus node layering system. And then, partitioning the layered blockchain consensus nodes by using an exploration method, dividing a plurality of child node clusters participating in consensus, and performing PBFT consensus by using the multi-center child node cluster blocks. And finally, the consensus center node submits a consensus result to the block to realize overall consensus. According to the invention, the hierarchical blocking consensus of the multi-center sub-node cluster is realized, the network congestion problem in the traditional PBFT algorithm is solved, the block chain network broadcast resource waste is reduced, the block chain consensus communication cost is reduced, and the communication and consensus efficiency is greatly improved while the block chain consensus safety is ensured.

Description

technical field [0001] The present invention relates to a blockchain consensus mechanism, in particular to a PBFT (Practical Byzantine Fault Tolerance) consensus mechanism. Background technique [0002] Blockchain is a chain structure in which each node in the P2P network sorts and stores data in the form of blocks according to time stamps. It has the characteristics of openness, credibility, decentralization and non-tampering. Its essence is an open and transparent decentralized Centralized ledger. As the underlying technology of Bitcoin, blockchain technology involves various technologies such as cryptography, distributed data storage, consensus mechanism, and peer-to-peer network information communication. It is a new application model in the computer field. [0003] The consensus mechanism is the working engine of the blockchain. In the case of no control subject in the P2P network, each participating node coordinates bookkeeping to ensure the distributed consistency of...

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Problems solved by technology

[0008] In order to solve the problem of traditional PBFT network congestion, reduce the waste of blockchain network broadcast resources, and reduce the cost of blockchain consensus communication, the present invention provides an improved PBFT consensus method based on ISM. This mechanism can not only ensure consensus security but also realize multi-center Sub-node cluster consensus greatly improves the efficiency of blockchain consensus

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