Technology of Blockchain
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 2
356-362

Sharding consensus protocol based on dual blockchains

Huang Jianhua1
Huang Xueru1
Ji Yuxiang1
Tang Ruicong2
1. School of Information Science & Engineering, East China University of Science & Technology, Shanghai 200237, China
2. Hong Kong DAEX Blockchain Limited, Shanghai 200120, China
DOI: 10.19734/j.issn.1001-3695.2020.01.0002

Abstract

In view of the fact that the storage capacity of the blockchain in the current shard model cannot be expanded synchronously with the increase of shards and there are the security problems of the shard algorithm, this paper proposed a dual blockchain-based sharding consensus protocol(DB-SCP). Firstly, it used a dual-blockchain shard storage model based on hash chain and transaction chain to design the verification information sharing mechanism and differentiated transaction storage mechanism. Therefore, the storage capacity of the blockchain increased synchronously with the increase of shards. Secondly, it adopted the sharding mechanism based on voting shares, through splitting node stakes into different shards to prevent a node from having excessive stakes in a shard. Finally, it used the VRF function to improve the intra-shard consensus algorithm to ensure the randomness of verifier selection, and introduced the key evolution technology to ensure the forward security of transactions. The security analysis shows that the sharding mechanism based on voting shares is both stable and safe. Experimental results show that the DB-SCP protocol has good performance advantages, and its storage capacity is improved by 30%~70% compared with the traditional blockchain model.

Foundation Support

国家自然科学基金面上项目(61472139)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.01.0002
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 2
Section: Technology of Blockchain
Pages: 356-362
Serial Number: 1001-3695(2021)02-005-0356-07

Publish History

[2021-02-05] Printed Article

Cite This Article

黄建华, 黄雪茹, 季钰翔, 等. 一种基于双链模型的分区共识协议 [J]. 计算机应用研究, 2021, 38 (2): 356-362. (Huang Jianhua, Huang Xueru, Ji Yuxiang, et al. Sharding consensus protocol based on dual blockchains [J]. Application Research of Computers, 2021, 38 (2): 356-362. )

About the Journal

  • 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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