A Multi-party Optimistic Non-repudiation Protocol

  • Authors:
  • Olivier Markowitch;Steve Kremer

  • Affiliations:
  • -;-

  • Venue:
  • ICISC '00 Proceedings of the Third International Conference on Information Security and Cryptology
  • Year:
  • 2000

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Abstract

In this paper we consider the optimistic approach of the non-repudiation protocols. We study a non-repudiation protocol with off-line trusted third party and we keep on with the definition of the multi-party non-repudiation, compare it to multi-party fair exchange and show some fundamental differences between these two problems. Finally, we generalize our protocol and propose a multi-party nonrepudiation protocol with off-line trusted third party.