Cryptology ePrint Archive: Report 2011/093

Linear Cryptanalysis Using Multiple Linear Approximations

Miia Hermelin and Kaisa Nyberg

Abstract: In this article, the theory of multidimensional linear attacks on block ciphers is developed and the basic attack algorithms and their complexity estimates are presented. As an application the multidimensional linear distinguisher derived by Cho for the block cipher PRESENT is discussed in detail.

Category / Keywords: secret-key cryptography / block ciphers, cryptanalysis, linear cryptanalysis, secret-key cryptography

Date: received 24 Feb 2011

Contact author: kaisa nyberg at aalto fi

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Version: 20110228:223737 (All versions of this report)

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