Technology of Blockchain
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 7
1952-1955,1962

Improved practical Byzantine fault tolerant consensus algorithm combined with BLS aggregating signature

Chen Jiawei
Xian Xiangbin
Yang Zhenguo
Liu Wenyin
School of Computers, Guangdong University of Technology, Guangzhou 510006, China
DOI: 10.19734/j.issn.1001-3695.2020.12.0403

Abstract

To solve the problem that the PBFT consensus algorithm can't support large-scale network with the quadratic communication complexity of O(n2)in consortium blockchain, this paper proposed an ABFT algorithm. Firstly, it improved the information interaction mode of nodes in PBFT consensus algorithm on multiple phases. On the prepare phase, each replica node sent information and signatured to the master node for verification. On the commit phase, the master node collected and verified the signatures, and combined with BLS signature, it aggregated the multiple verified signatures into an aggregating signature, which would be broadcast to all other replica nodes with other necessary information for verification. Moreover, ABFT algorithm the added the finish phase to prevent most replica nodes from timing out and causing view change. The ABFT algorithm reduced the complexity of network communication to O(n). Experiments show that in the case of multiple nodes, the ABFT algorithm can effectively reduce the consensus delay and improve the transaction throughput, which makes the consortium blockchain being able to accommodate a large number of nodes.

Foundation Support

国家自然科学基金资助项目(62076073,91748107)
广东省基础与应用基础研究基金资助项目(2020A1515010616)
广东省引进创新科研团队计划资助项目(2014ZT05G157)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.12.0403
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 7
Section: Technology of Blockchain
Pages: 1952-1955,1962
Serial Number: 1001-3695(2021)07-006-1952-04

Publish History

[2021-07-05] Printed Article

Cite This Article

陈佳伟, 冼祥斌, 杨振国, 等. 结合BLS聚合签名改进实用拜占庭容错共识算法 [J]. 计算机应用研究, 2021, 38 (7): 1952-1955,1962. (Chen Jiawei, Xian Xiangbin, Yang Zhenguo, et al. Improved practical Byzantine fault tolerant consensus algorithm combined with BLS aggregating signature [J]. Application Research of Computers, 2021, 38 (7): 1952-1955,1962. )

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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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