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An ID-Based Optimistic Fair Signature Exchange Protocol from Pairings

  • Chunxiang Gu
  • Yuefei Zhu
  • Yajuan Zhang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3802)

Abstract

ID-based public key cryptosystem can be a good alternative for certificate-based public key setting. The protocol for fair exchange of signatures can be widely used in signing digital contracts, e-payment and other electronic commerce. This paper proposes an efficient ID-based verifiably encrypted signature scheme from pairings. Using this new scheme as kernel, we provide an efficient ID-based optimistic fair signature exchange protocol. We offer arguments for the fairness, efficiency and security proof of our new protocol. Our new protocol provides an efficient and secure solution for the problem of fair exchange of signatures in ID-based cryptosystem.

Keywords

Trusted Third Party Random Oracle Model Fair Exchange Versus Erify Encrypt Signature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Chunxiang Gu
    • 1
  • Yuefei Zhu
    • 1
  • Yajuan Zhang
    • 1
  1. 1.Network Engineering DepartmentInformation Engineering UniversityZhengzhouP.R. China

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