A weak key class of XTEA for a related-key rectangle attack

Eunjin Lee, Deukjo Hong, Donghoon Chang, Seokhie Hong, Jongin Lim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    10 Citations (Scopus)

    Abstract

    XTEA is a block cipher with a very simple structure but there has not been found attack even for half of full round version i.e 32-round version. In this paper we introduce a class of weak keys which makes a 34-round reduced version of XTEA vulnerable to the related-key rectangle attack. The number of such weak keys is about 2. Our attack on a 34-round reduced version of XTEA under weak key assumption requires 2 chosen plaintexts and 2. 34-round XTEA encryptions.

    Original languageEnglish
    Title of host publicationProgress in Cryptology, VIETCRYPT 2006 - 1st International Conference on Cryptology in Vietnam, Revised Selected Papers
    PublisherSpringer Verlag
    Pages286-297
    Number of pages12
    ISBN (Print)3540687998, 9783540687993
    DOIs
    Publication statusPublished - 2006
    Event1st International Conference on Cryptology in Vietnam, VIETCRYPT 2006 - Hanoi, Viet Nam
    Duration: 2006 Sept 252006 Sept 28

    Publication series

    NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Volume4341 LNCS
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Other

    Other1st International Conference on Cryptology in Vietnam, VIETCRYPT 2006
    Country/TerritoryViet Nam
    CityHanoi
    Period06/9/2506/9/28

    Keywords

    • Related-key rectangle attack
    • Weak key class of XTEA
    • XTEA algorithm

    ASJC Scopus subject areas

    • Theoretical Computer Science
    • General Computer Science

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