A novel identity-based strong designated verifier signature scheme

  • Authors:
  • Baoyuan Kang;Colin Boyd;Ed Dawson

  • Affiliations:
  • School of Mathematical Sciences and Computing Technology, Central South University, Chang'sha, Hunan 410075, China and Information Security Institute, Queensland University of Technology, GPO Box ...;Information Security Institute, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia;Information Security Institute, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia

  • Venue:
  • Journal of Systems and Software
  • Year:
  • 2009

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Abstract

Unlike ordinary digital signatures, a designated verifier signature scheme makes it possible for a signer to convince a designated verifier that she has signed a message in such a way that the designated verifier cannot transfer the signature to a third party. In a strong designated verifier signature scheme, no third party can even verify the validity of a designated verifier signature, since the designated verifier's private key is required in the verifying phase. Firstly, this paper proposes the model of identity-based strong designated verifier signature scheme based on bilinear pairings by combining identity-based cryptosystem with the designated verifier signature scheme, and then, provides one concrete strong identity-based designated verifier signature scheme, which has short size of signature, low communication and computational cost. We provide security proofs for our scheme.