Practical Byzantine Reliable Broadcast on Partially-Connected Networks

Silvia Bonomi, Jérémie Decouchant, Giovanni Farina, Vincent Rahli, Sébastien Tixeuil

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)
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In this paper, we consider the Byzantine reliable broadcast problem on authenticated and partially connected networks. The state-of-the-art method to solve this problem consists in combining two algorithms from the literature. Handling asynchrony and faulty senders is typically done thanks to Gabriel Bracha's authenticated double-echo broadcast protocol, which assumes an asynchronous fully connected network. Danny Dolev's algorithm can then be used to provide reliable communications between processes in the global fault model, where up to f processes among N can be faulty in a communication network that is at least 2f+1-connected. Following recent works that showed how Dolev's protocol can be made more practical thanks to several optimizations, we show that the state-of-the-art methods to solve our problem can be optimized thanks to layer-specific and cross-layer optimizations. Our simulations with the Omnet++ network simulator show that these optimizations can be efficiently combined to decrease the total amount of information transmitted or the protocol's latency (e.g., respectively, -25% and -50% with a 16B payload, N=31 and f=4) compared to the state-of-the-art combination of Bracha's and Dolev's protocols.

Original languageEnglish
Title of host publicationProceedings - 2021 IEEE 41st International Conference on Distributed Computing Systems, ICDCS 2021
Number of pages11
ISBN (Electronic)978-1-6654-4513-9
Publication statusPublished - 2021
Event41st IEEE International Conference on Distributed Computing Systems - Virtual/online event
Duration: 7 Jul 202110 Jul 2021
Conference number: 41

Publication series

NameProceedings - International Conference on Distributed Computing Systems


Conference41st IEEE International Conference on Distributed Computing Systems
Abbreviated titleICDCS 2021
Internet address


  • Byzantine reliable broadcast
  • Partially connected networks
  • Synchronous or asynchronous communications


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