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Remarks on the Attack of Fouque et al. against the ℓIC Scheme

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Advances in Information and Computer Security (IWSEC 2008)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 5312))

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Abstract

In 2007, ℓ-Invertible Cycles (ℓIC) was proposed by Ding et al. This is one of the most efficient trapdoors for encryption/signature schemes, and of the mixed field type for multivariate quadratic public-key cryptosystems. Such schemes fit on the implementation over low cost smart cards or PDAs. In 2008, Fouque et al. proposed an efficient attack against the ℓIC signature scheme by using Gröbner basis algorithms. However, they only explicitly dealt with the odd case, i.e. ℓ is odd, but the even case; they only implemented their proposed attack in the odd case. In this paper, we propose an another practical attack against the ℓIC encryption/signature scheme. Our proposed attack does not employ Gröbner basis algorithms, and can be applied to the both even and odd cases. We show the efficiency of the attack by using some experimental results. Furthermore, the attack can be also applied to the ℓIC- scheme. To the best of our knowledge, we for the first time show some experimental results of a practical attack against the ℓIC- scheme for the even case.

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Author information

Authors and Affiliations

  1. Tokyo Metropolitan University, Japan

    Naoki Ogura & Shigenori Uchiyama

Authors
  1. Naoki Ogura
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  2. Shigenori Uchiyama
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Editor information

Editors and Affiliations

  1. Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan

    Kanta Matsuura

  2. NTT Information Sharing Platform Laboratories, NTT Corporation, Japan

    Eiichiro Fujisaki

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Ogura, N., Uchiyama, S. (2008). Remarks on the Attack of Fouque et al. against the ℓIC Scheme. In: Matsuura, K., Fujisaki, E. (eds) Advances in Information and Computer Security. IWSEC 2008. Lecture Notes in Computer Science, vol 5312. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-89598-5_3

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  • DOI: https://doi.org/10.1007/978-3-540-89598-5_3

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-89597-8

  • Online ISBN: 978-3-540-89598-5

  • eBook Packages: Computer ScienceComputer Science (R0)

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