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Improvement Research of PBFT Consensus Algorithm Based on Credit

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Blockchain and Trustworthy Systems (BlockSys 2019)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1156))

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Abstract

This paper analyzes the advantages and disadvantages of the PBFT consensus algorithm and proposes an improved credit-based PBFT consensus algorithm(CPBFT). CPBFT changes the original C/S architecture to P2P architecture, reduces the consensus steps, and uses the voting method to elect the master node. In the election process, credit levels and credit coefficient are introduced, so that the probability that each node is elected as the master node is affected by the past behavior, and a reliable master node is elected more probably. Experiments show that compared with the PBFT algorithm, the CPBFT algorithm reduces the amount of data transmission on the network and increases the throughput.

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Acknowledgments

This research was supported by Guangxi Ministry of Education (No:2017KY0211), Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex System(YF17105), Guangxi Key Laboratory of Cryptography and Information Security (No: GCIS201617) and Guangxi Key Laboratory of Trusted Software (No: KX201625).

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Authors and Affiliations

  1. School of Computer Science and Information Security, Guilin University of Electronic Technology, Guilin, 541004, China

    Yong Wang, Zhe Song & Tong Cheng

  2. Guangxi Key Laboratory of Cryptography and Information Security, Guilin University of Electronic Technology, Guilin, 541004, China

    Yong Wang, Zhe Song & Tong Cheng

Authors
  1. Yong Wang
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  2. Zhe Song
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  3. Tong Cheng
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Corresponding author

Correspondence to Zhe Song .

Editor information

Editors and Affiliations

  1. Sun Yat-sen University, Guangzhou, China

    Zibin Zheng

  2. Macau University of Science and Technology, Macau, China

    Hong-Ning Dai

  3. Guangdong University of Foreign Studies, Guangzhou, China

    Mingdong Tang

  4. Sun Yat-sen University, Guangzhou, China

    Xiangping Chen

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Wang, Y., Song, Z., Cheng, T. (2020). Improvement Research of PBFT Consensus Algorithm Based on Credit. In: Zheng, Z., Dai, HN., Tang, M., Chen, X. (eds) Blockchain and Trustworthy Systems. BlockSys 2019. Communications in Computer and Information Science, vol 1156. Springer, Singapore. https://doi.org/10.1007/978-981-15-2777-7_4

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  • DOI: https://doi.org/10.1007/978-981-15-2777-7_4

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-2776-0

  • Online ISBN: 978-981-15-2777-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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