Optimistic asynchronous atomic broadcast

  • Authors:
  • Klaus Kursawe;Victor Shoup

  • Affiliations:
  • KU Leuven;New York University

  • Venue:
  • ICALP'05 Proceedings of the 32nd international conference on Automata, Languages and Programming
  • Year:
  • 2005

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Abstract

This paper presents a new protocol for atomic broadcast in an asynchronous network with a maximal number of Byzantine failures. It guarantees both safety and liveness without making any timing assumptions. Under normal circumstances, the protocol runs in an extremely efficient “optimistic mode,” while in rare circumstances the protocol may briefly switch to a less efficient “pessimistic mode.”