Secure multi-party computation made simple

  • Authors:
  • Ueli Maurer

  • Affiliations:
  • Department of Computer Science, ETH Zurich, Zurich, Switzerland

  • Venue:
  • Discrete Applied Mathematics - Special issue: Coding and cryptography
  • Year:
  • 2006

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Abstract

Known secure multi-party computation protocols are quite complex, involving non-trivial mathematical structures and sub-protocols. The purpose of this paper is to present a very simple approach to secure multi-party computation with straightforward security proofs. This approach naturally yields protocols secure for mixed (active and passive) corruption and general (as opposed to threshold) adversary structures, confirming the previously proved tight bounds in a simpler framework. Due to their simplicity, the described protocols are well-suited for didactic purposes, which is a main goal of this paper.