An Improved Nominative Proxy Signature Scheme for Mobile Communication

  • Authors:

  • Jianhong Zhang;Qianhong Wu;Jilin Wang;Yumin Wang

  • Affiliations:

  • -;-;-;-

  • Venue:
  • AINA '04 Proceedings of the 18th International Conference on Advanced Information Networking and Applications - Volume 2
  • Year:
  • 2004

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Abstract

Recently, Seung-Hyun et al proposed a nominativeproxy signature scheme for mobile communication.However, we show that the scheme hasn't non-repudiation,note that a malicious original signer canforge the proxy signer to sign on any message. Finally,we also present a modification of the scheme to repairthe security flaw.