Multi-party indirect indexing and applications

  • Authors:
  • Matthew Franklin;Mark Gondree;Payman Mohassel

  • Affiliations:
  • Department of Computer Science, University of California, Davis;Department of Computer Science, University of California, Davis;Department of Computer Science, University of California, Davis

  • Venue:
  • ASIACRYPT'07 Proceedings of the Advances in Crypotology 13th international conference on Theory and application of cryptology and information security
  • Year:
  • 2007

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Abstract

We develop a new multi-party generalization of Naor-Nissim indirect indexing, making it possible for many participants to simulate a RAM machine with only poly-logarithmic blow-up. Our most efficient instantiation (built from length-flexible additively homomorphic public key encryption) improves the communication complexity of secure multi-party computation for a number of problems in the literature. Underlying our approach is a new multi-party variant of oblivious transfer which may be of independent interest.