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Paper Abstract and Keywords
Presentation 2025-03-07 10:30
Solvability and Knowledge Requirements for Reliable Broadcast with Locally Bounded Byzantine Faults in Dynamic Networks
Tota Tada, Junya Nakamura (Toyohashi Tech.) COMP2024-26
Abstract (in Japanese) (See Japanese page) 
(in English) Byzantine Reliable Broadcast (BRB) is a fundamental problem in ensuring the reliability of distributed systems such as blockchain systems. Byzantine fault is a fault model of distributed systems characterized by arbitrary and unpredictable behavior. BRB aims to distribute a message to every correct process despite the existence of Byzantine processes. Research on dynamic networks has been growing significantly in recent years. Casteigts et al.~formalized a framework of dynamic networks as Time-Varying Graph (TVG) and defined a hierarchy of TVG classes based on their constraints of topological evolution. Bonomi et al.~proposed DCPA that works under $f$-locally Byzantine fault model in TVG and studied liveness conditions in two TVG classes. They defined two detection problems, Conscious Termination (CT) and Bounded Byzantine Latency (BBL), and identified the necessary oracles to detect these problems. This paper examines detection problems in TVG classes that have not been previously studied and determines the necessary oracles and conditions for detection.
Keyword (in Japanese) (See Japanese page) 
(in English) Distributed Systems / Byzantine Faults / Reliable Broadcast / Dynamic Networks / CPA / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 424, COMP2024-26, pp. 9-16, March 2025.
Paper # COMP2024-26 
Date of Issue 2025-02-28 (COMP) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF COMP2024-26

Conference Information
Committee COMP  
Conference Date 2025-03-07 - 2025-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Ochanomizu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Theoretical Computer Science, etc 
Paper Information
Registration To COMP 
Conference Code 2025-03-COMP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Solvability and Knowledge Requirements for Reliable Broadcast with Locally Bounded Byzantine Faults in Dynamic Networks 
Sub Title (in English)  
Keyword(1) Distributed Systems  
Keyword(2) Byzantine Faults  
Keyword(3) Reliable Broadcast  
Keyword(4) Dynamic Networks  
Keyword(5) CPA  
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Keyword(8)  
1st Author's Name Tota Tada  
1st Author's Affiliation Toyohashi University of Technology (Toyohashi Tech.)
2nd Author's Name Junya Nakamura  
2nd Author's Affiliation Toyohashi University of Technology (Toyohashi Tech.)
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Speaker Author-1 
Date Time 2025-03-07 10:30:00 
Presentation Time 30 minutes 
Registration for COMP 
Paper # COMP2024-26 
Volume (vol) vol.124 
Number (no) no.424 
Page pp.9-16 
#Pages 8 
Date of Issue 2025-02-28 (COMP) 

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