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Analysis of Trivium Using Compressed Right Hand Side Equations

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Information Security and Cryptology - ICISC 2011 (ICISC 2011)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 7259))

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Abstract

We study a new representation of non-linear multivariate equations for algebraic cryptanalysis. Using a combination of multiple right hand side equations and binary decision diagrams, our new representation allows a very efficient conjunction of a large number of separate equations. We apply our new technique to the stream cipher Trivium and variants of Trivium reduced in size. By merging all equations into one single constraint, manageable in size and processing time, we get a representation of the Trivium cipher as one single equation.

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Author information

Authors and Affiliations

  1. Selmer Center, University of Bergen, Norway

    Thorsten Ernst Schilling & Håvard Raddum

Authors
  1. Thorsten Ernst Schilling
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  2. Håvard Raddum
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Editor information

Editors and Affiliations

  1. (A06) 6503 School of Computer Science and Engineering, Pusan National University, San-30, JangJeon-Dong, 609-735, GeumJeong-Gu, Busan, South Korea

    Howon Kim

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Schilling, T.E., Raddum, H. (2012). Analysis of Trivium Using Compressed Right Hand Side Equations. In: Kim, H. (eds) Information Security and Cryptology - ICISC 2011. ICISC 2011. Lecture Notes in Computer Science, vol 7259. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31912-9_2

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  • DOI: https://doi.org/10.1007/978-3-642-31912-9_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-31911-2

  • Online ISBN: 978-3-642-31912-9

  • eBook Packages: Computer ScienceComputer Science (R0)

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