A dolev-yao model for zero knowledge

  • Authors:
  • Anguraj Baskar;R. Ramanujam;S. P. Suresh

  • Affiliations:
  • Chennai Mathematical Institute, Chennai;Institute of Mathematical Sciences, Chennai;Chennai Mathematical Institute, Chennai

  • Venue:
  • ASIAN'09 Proceedings of the 13th Asian conference on Advances in Computer Science: information Security and Privacy
  • Year:
  • 2009

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Abstract

We propose an extension of the standard Dolev-Yao model of cryptographic protocols to facilitate symbolic reasoning about zero-knowledge proofs. This is accomplished by communicating typed terms, and providing a proof amounts to certifying that a term is of a particular type. We present a proof system for term derivability, which is employed to yield a decision procedure for checking whether a given protocol meets its zero knowledge specification.