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Journal of Automation and Information Sciences

Published 12 issues per year

ISSN Print: 1064-2315

ISSN Online: 2163-9337

SJR: 0.173 SNIP: 0.588 CiteScore™:: 2

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Estimated Security of Unbalanced MISTY-like Networks against Differential and Linear Cryptanalysis

Volume 44, Issue 10, 2012, pp. 69-82
DOI: 10.1615/JAutomatInfScien.v44.i10.60
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ABSTRACT

The paper presents the accurate estimates of upper bounds of existence probabilities of nontrivial differentials and differential characteristics and also (under certain additional assumptions) linear approximations and linear characteristics of generalized unbalanced MISTY-like networks. The obtained estimates allow one to substantiate the security against differential and linear cryptanalysis in practical and theoretical sense.

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