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Cryptanalysis of the Improvement of an Authentication Scheme Based on the Chinese Remainder Theorem for Multicast Communications

  • Alberto Peinado
  • Andrés Ortiz
  • Guillermo Cotrina
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 239)

Abstract

Recently, Antequera and López-Ramos have proposed an improvement on the secure multicast protocol based on the extended Euclidean algorithm in order to overcome the weaknesses and breaches detected by Peinado and Ortiz. The improvement defines a new authentication scheme based on the Chinese Remainder Theorem. However, we show in this work that the protocol is still vulnerable to impersonation attack due to the relationships between the authentication message of different multicast keys.

Keywords

Cryptanalysis Key refreshment Key Distribution Multicast 

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References

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Alberto Peinado
    • 1
  • Andrés Ortiz
    • 1
  • Guillermo Cotrina
    • 1
  1. 1.Dept. Ingeniería de Comunicaciones, E.T.S.I. TelecomunicaciónUniversidad de MálagaMálagaSpain

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