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Server Assisted Signatures Revisited

  • Kemal Bicakci
  • Nazife Baykal
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2964)

Abstract

One of the main objectives of server-assisted computation is to reduce the cost of generating public key signatures for ordinary users with their constrained devices. On the other hand, based on nothing more than a one-way function, one-time signatures provide an attractive alternative to public key signatures. This paper revisits server assisted computation for digital signatures to show server assisted one-time signature (SAOTS) that combines the benefits of these two efficiency solutions. The proposed protocol turns out to be a more computational and round-efficient protocol than previous verifiable-server approaches. In addition, SAOTS offers other advantages like verification transparency, getting rid of public key operations for the ordinary user and proving the server’s cheating without storing the signatures.

Keywords

server-assisted signature one-time signature digital signature pervasive computing 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Kemal Bicakci
    • 1
  • Nazife Baykal
    • 1
  1. 1.Informatics InstituteMiddle East Technical UniversityAnkaraTurkey

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