An efficient parallel repetition theorem for Arthur-Merlin games

  • Authors:
  • Rafael Pass;Muthuramakrishnan Venkitasubramaniam

  • Affiliations:
  • Cornell University, Ithaca, NY;Cornell University, Ithaca, NY

  • Venue:
  • Proceedings of the thirty-ninth annual ACM symposium on Theory of computing
  • Year:
  • 2007

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Abstract

We show a parallel-repetition theorem for constant-round Arthur-Merlin Games, using an efficient reduction. As a consequence, we show that parallel repetition reduces the soundness-error at an optimal rate (up to a negligible factor) in constant-round public-coin argument systems, and constant-round public-coinproofs of knowledge. The former of these results resolves an open questionposed by Bellare, Impagliazzo and Naor (FOCS '97).