On the Discrepancy between Serial and Parallel of Zero-Knowledge Protocols (Extended Abstract)

  • Authors:
  • Kouichi Sakurai;Toshiya Itoh

  • Affiliations:
  • -;-

  • Venue:
  • CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
  • Year:
  • 1992

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Abstract

In this paper, we investigate the discrepancy between a serial version and a parallel version of zero-knowledge protocols, and clarify the information "leaked" in the parallel version, which is not zero-knowledge unlike the case of the serial version. We consider two sides: one negative and the other positive in the parallel version of zero-knowledge protocols, especially of the Fiat-Shamir scheme.