Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"PBFT"”.
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Trustworthy and Efficient Blockchain-based E-commerce Model
… Modified- Practical Byzantine Fault Tolerance (M-PBFT), derived from the Practical Byzantine Fault Tolerance (PBFT) protocol to minimize communication overhead and improve overall efficiency. The modifications primarily target the leader election process and the communication protocols between …
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Permissioned blockchain in a supply chain problem
… Practical Byzantine Fault Tolerance consensus (PBFT) that guarantees the correctness of the information. Finally, using a two-sided markets model we provide a preliminary setup of a fee system that creates incentives to enter the platform: the blockchain network. Our results suggest that …
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Towards Fast and Adaptive Byzantine State Machine Replication for Planetary-Scale Systems
… in seminal BFT SMR frameworks, such as PBFT and BFT-SMaRt. We explain how the read-only optimization can violate the protocol's liveness by showing an attack and then present a solution that makes the overall, optimized protocol both live and linearizable. The second contribution is …
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The novel Proof of Efficiency (PoEf) Consensus Mechanism: improved efficiency and cybersecurity for Blockchain-based Supply Chain Management Systems.
… traditional Practical Byzantine Fault Tolerance (PBFT) system. PoEf integrates sharding and a reputation-level score to enhance scalability and security. This mechanism dynamically adjusts the reputation of nodes based on their performance, ensuring high throughput, low latency, and scalability. …
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Scalable Byzantine State Machine Replication: Designs, Techniques, and Implementations
… over state-of-the-art BFT protocols including PBFT, FaB, and Zyzzyva. Dester, for the hybrid model, reduces latency by as much as 30% over ezBFT. Next, the dissertation presents a new paradigm called DQBFT for designing consensus protocols that can scale to hundreds of nodes in geographically …
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Implementation and evaluation of fast authenticated byzantine consensus
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms