P-PBFT: An improved blockchain algorithm to support large-scale pharmaceutical traceability

Liu, Shannan; Liu, Changzheng; Shi, Du

doi:10.1016/j.compbiomed.2023.106590

Cited by 28 publications

(12 citation statements)

References 23 publications

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“…Additionally, in the proposed PBFT scheme, although each cluster has a CPN, the number of CPNs is a configurable value. Therefore, the security issue of CPNs can be mitigated by using multiple CPNs to structure the blockchain network [ 25 ]. Another method involves using agents to periodically monitor key nodes, such as the Cluster Primary Node [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

Enhanced Practical Byzantine Fault Tolerance via Dynamic Hierarchy Management and Location-Based Clustering

Kim,

Cho,

Choi

et al. 2023

Sensors

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Blockchain is a distributed database technology that operates in a P2P network and is used in various domains. Depending on its structure, blockchain can be classified into types such as public and private. A consensus algorithm is essential in blockchain, and various consensus algorithms have been applied. In particular, a non-competitive consensus algorithm called PBFT is mainly used in private blockchains. However, there are limitations to scalability. This paper proposes an enhanced PBFT with dynamic hierarchy management and location-based clustering to overcome these problems. The proposed method clusters nodes based on location information and adjusts the dynamic hierarchy to optimize consensus latency. As a result of the experiment, the proposed PBFT showed significant performance improvement compared to the existing typical PBFT and Dynamic Layer Management PBFT (DLM-PBFT). The proposed PBFT method showed a processing performance improvement rate of approximately 107% to 128% compared to PBFT, and 11% to 99% compared to DLM-PBFT.

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Section: Discussionmentioning

confidence: 99%

Enhanced Practical Byzantine Fault Tolerance via Dynamic Hierarchy Management and Location-Based Clustering

Kim,

Cho,

Choi

et al. 2023

Sensors

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“…Addressing scalability challenges in large-scale pharmaceutical traceability, [39] introduced an improved blockchain algorithm, P-PBFT. Based on practical byzantine fault tolerance (PBFT), grouping, and credit voting, this algorithm provides smaller latency, higher throughput, and better support for material traceability research.…”

Section: 2 Current Status Of Blockchain Traceability Researchmentioning

confidence: 99%

Advancing Emergency Supplies Management: A Blockchain‐Based Traceability System for Cold‐Chain Medicine Logistics

Zeng,

Wang,

Liang

et al. 2024

Advcd Theory and Sims

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Advancing cold‐chain medicine logistics and emergency supplies management necessitates a robust blockchain‐based traceability system. This specialized information system is essential for enhancing quality control and operational efficiency. Despite challenges like insufficient supplies, ineffective distribution, and delays, blockchain's transparency and traceability offer significant potential to revolutionize national emergency management. This paper presents a blockchain‐based traceability system tailored for cold‐chain medicine logistics. This system achieves traceability and automatic medicine quality assessment by integrating blockchain principles and leveraging hazard analysis theory combined with IoT technology. This system also enhances data reliability with a multi‐sensor data fusion algorithm, improving temperature accuracy beyond conventional methods. Additionally, the feasibility and necessity of integrating blockchain into cold‐chain pharmaceutical traceability processes is thoroughly examined. The proposed system fulfills traceability needs for emergency cold‐chain medicine while addressing industry challenges.

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“…This approach enables PBFT-based blockchain systems to be deployed in large-scale network scenarios. Reference 33 divided large-scale network nodes into different consensus groups based on response time and conducted group consensus. They also designed a related credit model and voting mechanism for dynamic updates of consensus nodes.…”

Section: Related Work and Preliminary Knowledgementioning

confidence: 99%

A secure and highly efficient blockchain PBFT consensus algorithm for microgrid power trading

Yao,

Fang,

Pan

et al. 2024

Sci Rep

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There are a series of challenges in microgrid transactions, and blockchain technology holds the promise of addressing these challenges. However, with the increasing number of users in microgrid transactions, existing blockchain systems may struggle to meet the growing demands for transactions. Therefore, this paper proposes an efficient and secure blockchain consensus algorithm designed to meet the demands of large-scale microgrid electricity transactions. The algorithm begins by utilizing a Spectral clustering algorithm to partition the blockchain network into different lower-level consensus set based on the transaction characteristics of nodes. Subsequently, a dual-layer consensus process is employed to enhance the efficiency of consensus. Additionally, we have designed a secure consensus set leader election strategy to promptly identify leaders with excellent performance. Finally, we have introduced an authentication method that combines zero-knowledge proofs and key sharing to further mitigate the risk of malicious nodes participating in the consensus. Theoretical analysis indicates that our proposed consensus algorithm, incorporating multiple layers of security measures, effectively withstands blockchain attacks such as denial of service. Simulation experiment results demonstrate that our algorithm outperforms similar blockchain algorithms significantly in terms of communication overhead, consensus latency, and throughput.

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P-PBFT: An improved blockchain algorithm to support large-scale pharmaceutical traceability

Cited by 28 publications

References 23 publications

Enhanced Practical Byzantine Fault Tolerance via Dynamic Hierarchy Management and Location-Based Clustering

Enhanced Practical Byzantine Fault Tolerance via Dynamic Hierarchy Management and Location-Based Clustering

Advancing Emergency Supplies Management: A Blockchain‐Based Traceability System for Cold‐Chain Medicine Logistics

A secure and highly efficient blockchain PBFT consensus algorithm for microgrid power trading

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