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An Efficient Masking Scheme for AES Software Implementations

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Information Security Applications (WISA 2005)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 3786))

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Abstract

The development of masking schemes to secure AES implementations against power-analysis attacks is a topic of ongoing research. The most challenging part in masking an AES implementation is the SubBytes operation because it is a non-linear operation. The current solutions are expensive to implement especially on small 8-bit processors; they either need many large tables or require a large amount of operations. In this article, we present a masking scheme that requires considerably less tables and considerably less operations than the previously presented schemes. We give a theoretical proof of security for our scheme and confirm it with actually performed DPA attacks.

The work described in this paper has been supported in part by the European Commission through the IST Programme under Contract IST-2002-507932 ECRYPT.

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Author information

Authors and Affiliations

  1. Institute for Applied Information Processing and Communciations (IAIK), TU Graz, Inffeldgasse 16a, A–8010, Graz, Austria

    Elisabeth Oswald

  2. Horst Görtz Institute for IT Security (HGI), Ruhr University Bochum, Germany, Universitätsstr. 150, 44780, Bochum, Germany

    Kai Schramm

Authors
  1. Elisabeth Oswald
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  2. Kai Schramm
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Editor information

Editors and Affiliations

  1. Department of Computer Science, Yonsei University, Shinchon-Dong, 134, Seodaemun-gu, 120-749, Seoul, Korea

    Joo-Seok Song

  2. School of Computer Science and Engineering, Seoul National University,  

    Taekyoung Kwon

  3. Computer Science Department, Google Inc. and Columbia University, 1214 Amsterdam Avenue, 10027, New York, NY, USA

    Moti Yung

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© 2006 Springer-Verlag Berlin Heidelberg

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Oswald, E., Schramm, K. (2006). An Efficient Masking Scheme for AES Software Implementations. In: Song, JS., Kwon, T., Yung, M. (eds) Information Security Applications. WISA 2005. Lecture Notes in Computer Science, vol 3786. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11604938_23

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  • DOI: https://doi.org/10.1007/11604938_23

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-31012-9

  • Online ISBN: 978-3-540-33153-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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