Enterprise Composite Blockchain Double Layer Consensus Algorithm Based on Improved DPoS and BFT

The consensus mechanism serves as the fundamental technology behind blockchain, enabling the establishment of a decentralized and reliable network system that achieves consensus among nodes without relying on the trustworthiness of individual nodes. In the enterprise composite blockchain, the master...

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Published in:	Peer-to-peer networking and applications Vol. 17; no. 3; pp. 1682 - 1701
Main Authors:	Li, Su, Zhang, Haolin, Chen, Ze, Wang, Junlu, Song, Baoyan
Format:	Journal Article
Language:	English
Published:	New York Springer US 01.05.2024 Springer Nature B.V
Subjects:	3 - Track on Blockchain Algorithms Blockchain Communications Engineering Computer Communication Networks Engineering Information Systems and Communication Service Networks Nodes Signal,Image and Speech Processing Verification DPoS BFT Composite blockchain VRF Consensus algorithm TS
ISSN:	1936-6442, 1936-6450
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Abstract	The consensus mechanism serves as the fundamental technology behind blockchain, enabling the establishment of a decentralized and reliable network system that achieves consensus among nodes without relying on the trustworthiness of individual nodes. In the enterprise composite blockchain, the master chain adopts a licensed public chain. However, existing consensus mechanisms cannot be directly applied to the licensed public chain. To address this, this paper proposes a dual-layer consensus algorithm that combines DPoS and PBFT. Aiming at the problem that DPoS voting mechanism commonly elects the node holding more tokens, which can lead to issues of political indifference. On the other hand, PBFT suffers from concerns such as inflexible and singular master node election, high communication complexity during the consensus process, and substantial overhead associated with view changes. In light of these challenges, this paper introduces an improved DPoS and BFT-based double-layer consensus algorithm designed specifically for the enterprise composite blockchain. Initially, the algorithm votes to generate a set of consensus nodes by improved DPoS verification pool selection. Subsequently, the elected consensus nodes generate blocks and conduct on-chain operations using a BFT consensus algorithm that integrates VRF and TS. Through experimental verification, this paper proposed algorithm effectively enhances system security and node activity without sacrificing usability. Moreover, comparative analysis against existing algorithms demonstrates higher transaction throughput, lower transaction latency, and reduced CPU load associated with this paper proposed algorithm.
AbstractList	The consensus mechanism serves as the fundamental technology behind blockchain, enabling the establishment of a decentralized and reliable network system that achieves consensus among nodes without relying on the trustworthiness of individual nodes. In the enterprise composite blockchain, the master chain adopts a licensed public chain. However, existing consensus mechanisms cannot be directly applied to the licensed public chain. To address this, this paper proposes a dual-layer consensus algorithm that combines DPoS and PBFT. Aiming at the problem that DPoS voting mechanism commonly elects the node holding more tokens, which can lead to issues of political indifference. On the other hand, PBFT suffers from concerns such as inflexible and singular master node election, high communication complexity during the consensus process, and substantial overhead associated with view changes. In light of these challenges, this paper introduces an improved DPoS and BFT-based double-layer consensus algorithm designed specifically for the enterprise composite blockchain. Initially, the algorithm votes to generate a set of consensus nodes by improved DPoS verification pool selection. Subsequently, the elected consensus nodes generate blocks and conduct on-chain operations using a BFT consensus algorithm that integrates VRF and TS. Through experimental verification, this paper proposed algorithm effectively enhances system security and node activity without sacrificing usability. Moreover, comparative analysis against existing algorithms demonstrates higher transaction throughput, lower transaction latency, and reduced CPU load associated with this paper proposed algorithm.
Author	Song, Baoyan Wang, Junlu Zhang, Haolin Li, Su Chen, Ze
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SubjectTerms	3 - Track on Blockchain Algorithms Blockchain Communications Engineering Computer Communication Networks Engineering Information Systems and Communication Service Networks Nodes Signal,Image and Speech Processing Verification
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Title	Enterprise Composite Blockchain Double Layer Consensus Algorithm Based on Improved DPoS and BFT
URI	https://link.springer.com/article/10.1007/s12083-024-01658-2 https://www.proquest.com/docview/3065768928
Volume	17
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