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International Conference on Information Security

ISC 2006: Information Security pp 161–170Cite as

Cryptanalysis of Variants of UOV

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Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 4176))

Abstract

The Unbalanced Oil and Vinegar scheme (UOV) is a signature scheme based on multivariate quadratic equations. It has o oil variables and v vinegar variables. UOV has m equations and n variables, where m = o and n = v+o. In this paper, we define the weak key of UOV and study how to find the weak key from the public key. Second, we study the security when m > o. And our result shows that the security strengths of the current version of TTS, TRMS, Rainbow and MFE are 259 ~267.6 3DES operations.

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Author information

Authors and Affiliations

  1. Department of Computer Science and Information Engineering, National Taiwan University, Taipei, 106, Taiwan

    Yuh-Hua Hu

  2. Department of Mathematical Education, National Hualien University of Education, Hualien, 970, Taiwan

    Chun-Yen Chou

  3. Department of Applied Mathematics, National Donghwa University, Hualien, 974, Taiwan

    Lih-Chung Wang

  4. Departments of Electrical Engineering & of Computer Science and Information Engineering, National Taiwan University, Taipei, 106, Taiwan

    Feipei Lai

Authors
  1. Yuh-Hua Hu
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  2. Chun-Yen Chou
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  3. Lih-Chung Wang
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  4. Feipei Lai
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Editor information

Editors and Affiliations

  1. University of the Aegean, University Hill, 81100, Mytilene, Greece

    Sokratis K. Katsikas

  2. Department of Information and Communication Technologies, University of A Coruña, Spain

    Javier López

  3. MPI-SWS,  

    Michael Backes

  4. Department of Information and Communication Systems Engineering, University of the Aegean, Karlovassi, Samos, Greece

    Stefanos Gritzalis

  5. Interdisciplinary Institute for BroadBand Technology (IBBT), Belgium

    Bart Preneel

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© 2006 Springer-Verlag Berlin Heidelberg

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Hu, YH., Chou, CY., Wang, LC., Lai, F. (2006). Cryptanalysis of Variants of UOV. In: Katsikas, S.K., López, J., Backes, M., Gritzalis, S., Preneel, B. (eds) Information Security. ISC 2006. Lecture Notes in Computer Science, vol 4176. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11836810_12

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  • DOI: https://doi.org/10.1007/11836810_12

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-38341-3

  • Online ISBN: 978-3-540-38343-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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