Improved Identity-Based Identification and Signature Schemes Using Quasi-Dyadic Goppa Codes

  • Sidi Mohamed El Yousfi Alaoui
  • Pierre-Louis Cayrel
  • Meziani Mohammed
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 200)


In this paper, we present an improved version of an identity-based identification scheme based on error-correcting codes. Our scheme combines the Courtois-Finiasz-Sendrier signature scheme using quasi-dyadic codes (QD-CFS) proposed in [2] and the identification scheme by Stern [18]. Following the construction proposed in [5], we obtain an identity-based identification scheme which has the advantage to reduce a public data size, the communication complexity and the signature length.


Error-Correcting codes Identity-based Cryptography Quasi-dyadic Goppa codes 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Sidi Mohamed El Yousfi Alaoui
    • 1
  • Pierre-Louis Cayrel
    • 1
  • Meziani Mohammed
    • 1
  1. 1.CASED – Center for Advanced Security Research DarmstadtDarmstadtGermany

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