Optimal and Player-Replaceable Consensus with an Honest Majority

We construct a Byzantine Agreement protocol that tolerates t < n/2 corruptions, is very efficient in terms of the number of rounds and the number of bits of communication, and satisfies a strong notion of robustness called player replaceability (defined in [Mic16]). We provide an analysis of our...

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Bibliographic Details
Main Authors: Micali, Silvio, Vaikuntanathan, Vinod
Other Authors: Vinod Vaikuntanathan
Published: 2017
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Online Access:http://hdl.handle.net/1721.1/107927
Description
Summary:We construct a Byzantine Agreement protocol that tolerates t < n/2 corruptions, is very efficient in terms of the number of rounds and the number of bits of communication, and satisfies a strong notion of robustness called player replaceability (defined in [Mic16]). We provide an analysis of our protocol when executed on real-world networks such as the ones employed in the bitcoin protocol.