Round Efficiency of Multi-party Computation with a Dishonest Majority

@inproceedings{Katz2003RoundEO,
  title={Round Efficiency of Multi-party Computation with a Dishonest Majority},
  author={Jonathan Katz and Rafail Ostrovsky and Adam D. Smith},
  booktitle={EUROCRYPT},
  year={2003}
}
We consider the round complexity of multi-party computation in the presence of a static adversary who controls a majority of the parties. Here, n players wish to securely compute some functionality and up to n−1 of these players may be arbitrarily malicious. Previous protocols for this setting (when a broadcast channel is available) require O(n) rounds. We present two protocols with improved round complexity: The first assumes only the existence of trapdoor permutations and dense cryptosystems… CONTINUE READING
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