Optimizing Blockchain Consensus: Incorporating Trust Value in the Practical Byzantine Fault Tolerance Algorithm with Boneh-Lynn-Shacham Aggregate Signature

Main Article Content

Dayong Zhang
https://orcid.org/0009-0002-8408-1567
Nur Haliza Abdul Wahab
https://orcid.org/0000-0001-9193-9475
Adi Wira Mohd Zin
https://orcid.org/0000-0001-7106-582X

Abstract

The consensus algorithm is the core mechanism of blockchain and is used to ensure data consistency among blockchain nodes. The PBFT consensus algorithm is widely used in alliance chains because it is resistant to Byzantine errors. However, the present PBFT (Practical Byzantine Fault Tolerance) still has issues with master node selection that is random and complicated communication. The IBFT consensus technique, which is enhanced, is proposed in this study and is based on node trust value and BLS (Boneh-Lynn-Shacham) aggregate signature. In IBFT, multi-level indicators are used to calculate the trust value of each node, and some nodes are selected to take part in network consensus as a result of this calculation. The master node is chosen from among them based on which node has the highest trust value, it transforms the BLS signature process into the information interaction process between nodes. Consequently, communication complexity is reduced, and node-to-node information exchange remains secure. The simulation experiment findings demonstrate that the IBFT consensus method enhances transaction throughput rate by 61% and reduces latency by 13% when compared to the PBFT algorithm.

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Optimizing Blockchain Consensus: Incorporating Trust Value in the Practical Byzantine Fault Tolerance Algorithm with Boneh-Lynn-Shacham Aggregate Signature. Baghdad Sci.J [Internet]. 2024 Feb. 25 [cited 2024 Oct. 9];21(2(SI):0633. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/9735
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How to Cite

1.
Optimizing Blockchain Consensus: Incorporating Trust Value in the Practical Byzantine Fault Tolerance Algorithm with Boneh-Lynn-Shacham Aggregate Signature. Baghdad Sci.J [Internet]. 2024 Feb. 25 [cited 2024 Oct. 9];21(2(SI):0633. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/9735

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