Revisiting hBFT: Speculative Byzantine Fault Tolerance with Minimum Cost

dc.contributor.authorShrestha, Nibesh
dc.contributor.authorKumar, Mohan
dc.contributor.authorDuan, SiSi
dc.date.accessioned2019-03-15T15:13:49Z
dc.date.available2019-03-15T15:13:49Z
dc.date.issued2019-02-25
dc.description.abstractFaB Paxos sets a lower bound of 5f + 1 replicas for any two-step consensus protocols tolerating f byzantine failures. Yet, hBFT promises a two-step consensus protocol with only 3f + 1 replicas. As a result, it violates safety property of a consensus protocol. In this note, we review the lower bound set by FaB Paxos and present a simple execution scenario that produces a safety violation in hBFT. To demonstrate the scenario, we require a relatively simple setup with only 4 replicas and one view-change.en
dc.description.urihttps://arxiv.org/abs/1902.08505en
dc.format.extent4 pagesen
dc.genrearticlesen
dc.identifierdoi:10.13016/m2wc0c-5wmc
dc.identifier.citationNibesh Shrestha, Mohan Kumar, SiSi Duan, Revisiting hBFT: Speculative Byzantine Fault Tolerance with Minimum Cost, 2019, https://arxiv.org/abs/1902.08505en
dc.identifier.urihttp://hdl.handle.net/11603/13070
dc.language.isoenen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Information Systems Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectFaB Paxosen
dc.subjecttwo-step byzantine fault tolerant consensus protocolen
dc.subjecthBFT protocolen
dc.titleRevisiting hBFT: Speculative Byzantine Fault Tolerance with Minimum Costen
dc.typeTexten

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