Technology of Information Security
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App. Res. of Comp. Printed Article
Vol. 37, 2020 No. 11
3382-3386

Byzantine fault tolerance algorithm for consortium blockchain

Wang Rihong1
Zhang Lifeng1
Xu Quanqing2
Zhou Hang1
1. School of Information & Control Engineering, Qingdao University of Technology, Qingdao Shandong 266520, China
2. Ant Financial Services Group, Hangzhou 310012, China
DOI: 10.19734/j.issn.1001-3695.2019.07.0268

Abstract

In the application scenario of consortium chain, this paper analyzed the high communication cost and the selection of the master node in the most widely used PBFT algorithm, and proposed OBFT algorithm. Firstly, for high communication cost problem, OBFT algorithm realized optimistic synchronous Byzantine fault tolerance through dynamic timeout, and combined the checkpoint protocol in PBFT algorithm. When a timeout was triggered, it indicated that the node was in asynchronous state, in order to achieve Byzantine fault tolerance. The algorithm switched back to the partial synchronization Byzantine fault tolerance, that was, executed the commit phase of the PBFT algorithm, and used the stable checkpoint as the starting point for a new round of OBFT. Secondly, it used the integral system to optimize the selection process of the master node, and guaranteed the optional master node to conform to the longest chain principle of the blockchain. Finally, based on local multi-node simulation experiments, the OBFT algorithm improves transaction throughput and scalability, and effectively reduces transaction latency.

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.07.0268
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 11
Section: Technology of Information Security
Pages: 3382-3386
Serial Number: 1001-3695(2020)11-037-3382-05

Publish History

[2020-11-05] Printed Article

Cite This Article

王日宏, 张立锋, 徐泉清, 等. 可应用于联盟链的拜占庭容错共识算法 [J]. 计算机应用研究, 2020, 37 (11): 3382-3386. (Wang Rihong, Zhang Lifeng, Xu Quanqing, et al. Byzantine fault tolerance algorithm for consortium blockchain [J]. Application Research of Computers, 2020, 37 (11): 3382-3386. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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