An efficient validated asynchronous byzantine agreement protocol using committee

Fuente: arXiv
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Auteur principal: Sony, Nasit S
Format: Preprint
Publié: 2025
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author Sony, Nasit S
author_facet Sony, Nasit S
contents We present a Byzantine agreement protocol to address the inefficiencies inherent in multi-valued Byzantine agreement protocols, i.e., a version of the Byzantine agreement protocol where every party broadcasts its request, and at the end of the protocol, every party agrees on one of the party's requests. The protocol we present is a validated asynchronous Byzantine agreement protocol, i.e., a party's request must be validated by some external validity property before it is proposed for agreement. Differently from most of the MVBA protocols, we allow only a subset of total parties to broadcast their requests instead of all, and we make the subset selection stochastic each time the parties choose to broadcast a new set of requests. Then, at the time of the agreement, we choose a party from the selected subset, and the parties reach an agreement on the selected party's broadcast. Extensive theoretical analysis shows that this approach can produce efficient output regarding messages and computation overhead, but the protocol is time-consuming.
format Preprint
id arxiv_https___arxiv_org_abs_2501_00717
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An efficient validated asynchronous byzantine agreement protocol using committee
Sony, Nasit S
Distributed, Parallel, and Cluster Computing
We present a Byzantine agreement protocol to address the inefficiencies inherent in multi-valued Byzantine agreement protocols, i.e., a version of the Byzantine agreement protocol where every party broadcasts its request, and at the end of the protocol, every party agrees on one of the party's requests. The protocol we present is a validated asynchronous Byzantine agreement protocol, i.e., a party's request must be validated by some external validity property before it is proposed for agreement. Differently from most of the MVBA protocols, we allow only a subset of total parties to broadcast their requests instead of all, and we make the subset selection stochastic each time the parties choose to broadcast a new set of requests. Then, at the time of the agreement, we choose a party from the selected subset, and the parties reach an agreement on the selected party's broadcast. Extensive theoretical analysis shows that this approach can produce efficient output regarding messages and computation overhead, but the protocol is time-consuming.
title An efficient validated asynchronous byzantine agreement protocol using committee
topic Distributed, Parallel, and Cluster Computing
url https://arxiv.org/abs/2501.00717