Brief Announcement: Practical Synchronous Byzantine Consensus

Authors Ittai Abraham, Srinivas Devadas, Kartik Nayak, Ling Ren



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Ittai Abraham
Srinivas Devadas
Kartik Nayak
Ling Ren

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Ittai Abraham, Srinivas Devadas, Kartik Nayak, and Ling Ren. Brief Announcement: Practical Synchronous Byzantine Consensus. In 31st International Symposium on Distributed Computing (DISC 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 91, pp. 41:1-41:4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
https://doi.org/10.4230/LIPIcs.DISC.2017.41

Abstract

This paper presents new protocols for Byzantine state machine replication and Byzantine agreement in the synchronous and authenticated setting. The PBFT state machine replication protocol tolerates f Byzantine faults in an asynchronous setting using n = 3f + 1 replicas. We improve the Byzantine fault tolerance to n = 2f + 1 by utilizing the synchrony assumption. Our protocol also solves synchronous authenticated Byzantine agreement in fewer expected rounds than the best existing solution (Katz and Koo, 2006).
Keywords
  • consensus
  • agreement
  • Byzantine fault tolerance
  • replication
  • synchrony

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References

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