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Research On Consensus Performance Of Multi-Chain Blockchain Based On League Chain

Posted on:2020-08-08Degree:MasterType:Thesis
Country:ChinaCandidate:Y P SunFull Text:PDF
GTID:2428330590963879Subject:Computer Science and Technology
Abstract/Summary:PDF Full Text Request
While the Internet brings convenience to people,it also has hidden dangers.In recent years,network security issues such as privacy disclosure,confidential information disclosure,and online fraud have occurred frequently,which has hindered the development of the Internet economy to some extent.The blockchain technology represented by Bitcoin has new features such as decentralization,tamper resistance and traceability.It has brought new problems to solve the problems encountered in the information security of existing network systems.The dawn of light.In the practical commercial application of blockchain,the weakly centralized league chain system has received more and more attention due to the factors of authority management and data security.However,the existing single-chain blockchain has the problems of low data throughput and large resource overhead in the federated chain environment.At the same time,the single-chain structure is difficult to support the concurrent processing of diversified digital assets,leaving the privacy data easy.Hidden dangers of leakage.In view of the above problems,based on the league chain environment,combined with consensus algorithm and blockchain structure,this paper studies the consensus performance of multi-chain blockchain for the league chain environment.In view of the high data throughput and low resource overhead of the consensus algorithm in the federated chain environment,this paper introduces a simplified consensus mechanism and a representative node set conversion mechanism based on the dynamic delegated Byzantine fault-tolerant algorithm,streamlining the view conversion process and optimizing the region.The block data dynamic recovery process proposes an initiative dynamic delegated Byzantine fault-tolerant algorithm suitable for the federated chain environment,and experiments on the data throughput and time delay of the algorithm,and detects the consensus situation and data recovery in the case of partial node failure.Happening.The experimental results show that the initiative dynamic delegated Byzantine fault-tolerant algorithm improves the node fault-tolerance rate from 20% to 33% while improving data throughput,and effectively reduces the impact of high traffic on consensus performance in the data recovery phase.In view of the need of concurrent processing of high-privacy data in the league chain environment,this paper proposes a multi-chain structure based on initiative dynamic delegated Byzantine fault-tolerant algorithm,and sets up independent user blockchain and data blockchain structure.Blockchain application functionality is isolated from privacy data and anchored by hash values to enhance the security,privacy,and maintainability of blockchain data.It is proved by experiments that the multi-chain structure introducing the initiative dynamic delegated Byzantine fault-tolerant algorithm has a Significant improvement in data throughput,and can more effectively meet the consensus performance requirements of the league chain.Finally,we summarize the work of this paper,analyzes the existing achievements and its inadequacies,and puts forward the direction for the follow-up research.
Keywords/Search Tags:Blockchain, league chain, consensus algorithm, dynamic delegated Byzantine fault-tolerant algorithm, multi-chain structure
PDF Full Text Request
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