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Impossible Differential Analysis of Reduced Round CLEFIA

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Information Security and Cryptology (Inscrypt 2008)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 5487))

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Abstract

CLEFIA is a new block cipher proposed by SONY corporation recently. The fundamental structure of CLEFIA is a generalized Feistel structure consisting of 4 data lines. Convenient for cryptanalysis, we rewrite the cipher in traditional Feistel structure consisting of 2 data lines. We proposed a new 9-round impossible differential. By using the 9 round impossible differential, we presented an idea on the analysis of 14-round CLEFIA-128 without whitening layers.

This work was supported by National Natural Science Foundation of China 60673068 and Natural Science Foundation of Shandong Province Y2008G01.

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References

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Author information

Authors and Affiliations

  1. School of Information Science and Engineering, Shandong Normal University, Jinan, 250014, China

    Wenying Zhang & Jing Han

  2. State Key Laboratory of Information Security, Graduate University, Chinese Academy of Sciences, Beijing, 100049, China

    Wenying Zhang

Authors
  1. Wenying Zhang
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  2. Jing Han
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Editor information

Editors and Affiliations

  1. Computer Science Department, Google Inc. and Columbia University, Room 464, S.W. Mudd Building, 10027, New York, NY, USA

    Moti Yung

  2. College of Information Sciences and Technology, Pennsylvania State University, PA 16802, University Park, USA

    Peng Liu

  3. SKLOIS, Institute of Software, Chinese Academy of Sciences, 100080, Beijing, China

    Dongdai Lin

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Zhang, W., Han, J. (2009). Impossible Differential Analysis of Reduced Round CLEFIA. In: Yung, M., Liu, P., Lin, D. (eds) Information Security and Cryptology. Inscrypt 2008. Lecture Notes in Computer Science, vol 5487. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01440-6_15

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  • DOI: https://doi.org/10.1007/978-3-642-01440-6_15

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-01439-0

  • Online ISBN: 978-3-642-01440-6

  • eBook Packages: Computer ScienceComputer Science (R0)

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