A design of fair blind signatures protocol using PVNIOT

  • Authors:
  • Jeom-goo Kim;Do-hyeon Lee;Jeog-bae Lee

  • Affiliations:
  • Dept. Of Computer Science, Namseoul Univ., Cheonan-city, Choongnam, Korea;Dept. of Electronics and Computer Engineering, Hanyang Univ.;Dept. of Computer Science, Sunmoon Univ.

  • Venue:
  • ICCSA'07 Proceedings of the 2007 international conference on Computational science and Its applications - Volume Part II
  • Year:
  • 2007

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Abstract

The biggest problem for the oblivious transfer protocol is the rapid increasement of network traffic and computational complexity if the protocol is used as a sub-protocol compare to the case that when it is used as a standalone protocol. To fix such problems, in this paper, we propose a verifiable Noninteractive OT protocol that reduces the network traffic and computational complexity by preprocessing the necessary computations when the network traffic is low. The proposed protocol uses third root mechanism instead of square root mechanism that is used for the Fiat-Shamir signature mechanism and also uses 1-out-of-2 oblivious transfer based on signature mechanism. We also analyze the proposed protocol by comparing to the Lein Harn, VNIOT protocols.