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A Proxy Signature Scheme Based on Coding Theory

  • Hoda Jannati
  • Abolfazl Falahati
Part of the Communications in Computer and Information Science book series (CCIS, volume 92)

Abstract

Proxy signature helps the proxy signer to sign messages on behalf of the original signer. This signature is used when the original signer is not available to sign a specific document. In this paper, we introduce a new proxy signature scheme based on Stern’s identification scheme whose security depends on syndrome decoding problem. The proposed scheme is the first code-based proxy signature and can be used in a quantum computer. In this scheme, the operations to perform are linear and very simple thus the signature is performed quickly and can be implemented using smart card in a quite efficient way. The proposed scheme also satisfies unforgeability, undeniability, non-transferability and distinguishability properties which are the security requirements for a proxy signature.

Keywords

code-based signature proxy signature Stern’s identification syndrome decoding 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Hoda Jannati
    • 1
  • Abolfazl Falahati
    • 1
  1. 1.Department of Electrical Engineering (DCCS Lab)Iran University of Science and TechnologyTehranIran

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