A systematic method to design strong designated verifier signature without random oracles

  • Authors:
  • Haibo Tian;Zhengtao Jiang;Yi Liu;Baodian Wei

  • Affiliations:
  • School of Information Science and Technology, Sun Yat-Sen University, Guangzhou, P.R. China 510275 and Guangdong Key Laboratory of Information Security Technology, Guangzhou, P.R. China;School of Computer, Communication University of China, Beijing, China 100024;Faculty of Computer, Guangdong University of Technology, Guangzhou, P.R. China 510006;School of Information Science and Technology, Sun Yat-Sen University, Guangzhou, P.R. China 510275 and Guangdong Key Laboratory of Information Security Technology, Guangzhou, P.R. China

  • Venue:
  • Cluster Computing
  • Year:
  • 2013

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Abstract

Strong designated verifier signature (SDVS) provides secret authentication service to entities in a computing task. The primitive assures that an entity's signature is verified only by a designated service provider. It also assures that a transcript about a computing task can be produced by both the entity and its service provider independently. Then neither can prove to a third party that an entity is involved in a task. Currently, most SDVS schemes without random oracles have no strong unforgeability and privacy of signer's identity. This paper proposes a systematic method to design SDVS schemes without random oracles. It provides a basic scheme with unforgeability and non-transferability properties. Then provides it an SDVS scheme with strong unforgeability and privacy of signer's identity properties and based on standard assumptions. Finally, a more efficient SDVS scheme is shown based on a non-black box assumption.