Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)

Detalhes bibliográficos
Autor(a) principal: Correia, Miguel
Data de Publicação: 2009
Outros Autores: Veronese, Giuliana Santos, Lung, Lau Cheuk
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/14134
Resumo: Reviewed by Paulo J. Sousa
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spelling Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)Reviewed by Paulo J. SousaByzantine consensus in asynchronous message-passing systems has been shown to require at least $3f+1$ processes to be solvable in several system models (e.g., with failure detectors, partial synchrony or randomization). Recently a couple of solutions to implement Byzantine fault-tolerant state-machine replication using only $2f+1$ replicas have appeared. This reduction from $3f+1$ to $2f+1$ is possible with a hybrid system model, i.e., by extending the system model with trusted/trustworthy components that constrain the power of faulty processes to have certain behaviors. Despite these important results, the problem of solving Byzantine consensus with only $2f+1$ processes is still far from being well understood. In this paper we present a methodology to transform crash consensus algorithms into Byzantine consensus algorithms with different characteristics, with the assistance of a reliable broadcast primitive that requires trusted/trustworthy components to be implemented. We exemplify the methodology with two algorithms, one that uses failure detectors and one that is randomized. We also define a new flavor of consensus and use it to solve atomic broadcast with only $2f+1$ processes, showing the practical interest of the consensus algorithms presented.Repositório da Universidade de LisboaCorreia, MiguelVeronese, Giuliana SantosLung, Lau Cheuk2009-12-29T13:38:50Z2009-12-29T13:38:50Z2009-12-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/reportapplication/pdfhttp://hdl.handle.net/10451/14134enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T15:59:45Zoai:repositorio.ul.pt:10451/14134Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:35:58.957769Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
title Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
spellingShingle Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
Correia, Miguel
title_short Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
title_full Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
title_fullStr Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
title_full_unstemmed Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
title_sort Asynchronous Byzantine Consensus with 2f+1 Processes (extended version)
author Correia, Miguel
author_facet Correia, Miguel
Veronese, Giuliana Santos
Lung, Lau Cheuk
author_role author
author2 Veronese, Giuliana Santos
Lung, Lau Cheuk
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Correia, Miguel
Veronese, Giuliana Santos
Lung, Lau Cheuk
description Reviewed by Paulo J. Sousa
publishDate 2009
dc.date.none.fl_str_mv 2009-12-29T13:38:50Z
2009-12-29T13:38:50Z
2009-12-29
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/14134
url http://hdl.handle.net/10451/14134
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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