Differential entropy analysis of the IDEA block cipher

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dc.citation.epage570en_US
dc.citation.issueNumberPART Ben_US
dc.citation.spage561en_US
dc.citation.volumeNumber259en_US
dc.contributor.authorBiryukov, A.en_US
dc.contributor.authorNakahara, Jr. J.en_US
dc.contributor.authorYıldırım H. M.en_US
dc.date.accessioned2016-02-08T11:03:03Z
dc.date.available2016-02-08T11:03:03Zen_US
dc.date.issued2014en_US
dc.departmentComputer Technology and Information Systemsen_US
dc.description.abstractThis paper describes a new cryptanalytic technique that combines differential cryptanalysis with Shannon entropy. We call it differential entropy (DE). The objective is to exploit the non-uniform distribution of output differences from a given mapping as a distinguishing tool in cryptanalysis. Our preferred target is the IDEA block cipher, since we detected significantly low entropy at the output of its multiplication operation. We looked to further extend this entropy analysis to larger components and for a number of rounds. We present key-recovery attacks on up to 2.5-round IDEA in the single-key model and without weak-key assumptions. © 2013 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.cam.2013.08.002en_US
dc.identifier.eissn1879-1778
dc.identifier.issn0377-0427
dc.identifier.urihttp://hdl.handle.net/11693/26660en_US
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.cam.2013.08.002en_US
dc.source.titleJournal of Computational and Applied Mathematicsen_US
dc.subjectDifferential cryptanalysisen_US
dc.subjectIDEA block cipheren_US
dc.subjectShannon entropyen_US
dc.subjectBlock ciphersen_US
dc.subjectCryptanalytic techniquesen_US
dc.subjectDifferential cryptanalysisen_US
dc.subjectDifferential entropyen_US
dc.subjectKey-recovery attacksen_US
dc.subjectMultiplication operationsen_US
dc.subjectNon-uniform distributionen_US
dc.subjectLyapunov methodsen_US
dc.subjectSecurity of dataen_US
dc.subjectCryptographyen_US
dc.titleDifferential entropy analysis of the IDEA block cipheren_US
dc.typeArticleen_US

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