Improved Multi-Dimensional Meet-in-the-Middle Cryptanalysis of Katan

Shahram Rasoolzadeh; Håvard Raddum

doi:10.1515/tmmp-2016-0037

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Improved Multi-Dimensional Meet-in-the-Middle Cryptanalysis of Katan

Tatra Mountains Mathematical Publications

Volume 67 (2016): Issue 1 (September 2016)

By: Shahram Rasoolzadeh and Håvard Raddum

Open Access

|Feb 2017

Abstract

We study multidimensional meet-in-the-middle attacks on the KATAN block cipher family. Several improvements to the basic attacks are explained. The most noteworthy of these is the technique of guessing only non-linearly involved key bits, which reduces the search space by a significant factor. The optimization decreases the complexity of multidimensional meet-in-the-middle attacks, allowing more rounds of KATAN to be efficiently attacked than previously reported.

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Articles in this issue

DOI: https://doi.org/10.1515/tmmp-2016-0037 | Journal eISSN: 1338-9750 | Journal ISSN: 1210-3195

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Language: English

Page range: 149 - 166

Submitted on: Aug 15, 2016

Published on: Feb 25, 2017

Published by: Slovak Academy of Sciences, Mathematical Institute

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

KATAN,

Related subjects:

© 2017 Shahram Rasoolzadeh, Håvard Raddum, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 67 (2016): Issue 1 (September 2016)