Paper 2002/085 Original: eprint.iacr.org/2002/085 ↗

Efficient and Player-Optimal Strong Consensus

Matthias Fitzi
Juan A. Garay
Abstract

In the {\em strong consensus} problem, $n$ players attempt to reach agreement on a value initially held by {\em one of the good players}, despite the (malicious) behavior of up to $t$ of them. Although the problem is closely related to the standard consensus problem (aka Byzantine agreement), the only known solution with the optimal number of players requires exponential computation and communication in the unconditional setting. In this paper we study this problem, and present {\em efficient} protocols and tight lower bounds for several standard distributed computation models --- unconditional, computational, synchronous, and asynchronous.

Metadata
Available format(s)
PDF
Publication info
Preprint.
History
2002-06-30: last updated
2002-06-30: published
Short URL
https://ia.cr/2002/085
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2002/085,
      author = {Matthias Fitzi and Juan A.  Garay},
      title = {Efficient and Player-Optimal Strong Consensus},
      howpublished = {Cryptology {ePrint} Archive, Paper 2002/085},
      year = {2002},
      url = {https://eprint.iacr.org/2002/085}
}
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