Gate evaluation secret sharing and secure one-round two-party computation

  • Authors:
  • Vladimir Kolesnikov

  • Affiliations:
  • Department of Computer Science, University of Toronto, Canada

  • Venue:
  • ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
  • Year:
  • 2005

Quantified Score

Hi-index 0.00

Visualization

Abstract

We propose Gate Evaluation Secret Sharing (GESS) – a new kind of secret sharing, designed for use in secure function evaluation (SFE) with minimal interaction. The resulting simple and powerful GESS approach to SFE is a generalization of Yao’s garbled circuit technique. We give efficient GESS schemes for evaluating binary gates and prove (almost) matching lower bounds. We give a more efficient information-theoretic reduction of SFE of a boolean formula F to oblivious transfer. Its complexity is ≈ ∑ di2, where di is the depth of the i-th leaf of F.