On the Fly Authentication and Signature Schemes Based on Groups of Unknown Order

@article{Girault2006OnTF,
  title={On the Fly Authentication and Signature Schemes Based on Groups of Unknown Order},
  author={Marc Girault and Guillaume Poupard and Jacques Stern},
  journal={Journal of Cryptology},
  year={2006},
  volume={19},
  pages={463-487}
}
In response to the current need for fast, secure and cheap public-key cryptography, we propose an interactive zero-knowledge identification scheme and a derived signature scheme that combine provable security based on the problem of computing discrete logarithms in any group, short keys, very short transmission and minimal on-line computation. This leads to both efficient and secure applications well suited to implementation on low cost smart cards. We introduce GPS, a Schnorr-like scheme that… 
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