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dc.contributor.author Park, Seongmin ko
dc.contributor.author Kim, Juneyeun ko
dc.contributor.author Cho, Kookrae ko
dc.contributor.author Yum, Dae Hyun ko
dc.date.accessioned 2021-01-22T07:21:12Z -
dc.date.available 2021-01-22T07:21:12Z -
dc.date.created 2020-05-29 -
dc.date.issued 2020-05 -
dc.identifier.citation Cryptologia, v.44, no.3, pp.197 - 204 -
dc.identifier.issn 0161-1194 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/12743 -
dc.description.abstract A Vigenere cipher applies a single short key repeatedly to encrypt a plaintext. If a cryptanalyst correctly finds out the key length, the ciphertext can be divided into multiple instances of shift cipher and be broken by frequency analysis. To determine the key length, the twist algorithm, an alternate method to the standard Kasiski and Friedman tests, was recently proposed. In this article, we propose the twist(+) algorithm, an improved twist algorithm, which can estimate the key length more accurately than the original twist algorithm. -
dc.language English -
dc.publisher Taylor & Francis -
dc.title Finding the key length of a Vigenere cipher: How to improve the twist algorithm -
dc.type Article -
dc.identifier.doi 10.1080/01611194.2019.1657202 -
dc.identifier.wosid 000530947100001 -
dc.type.local Article(Overseas) -
dc.type.rims ART -
dc.description.journalClass 1 -
dc.contributor.localauthor Cho, Kookrae -
dc.contributor.nonIdAuthor Park, Seongmin -
dc.contributor.nonIdAuthor Kim, Juneyeun -
dc.contributor.nonIdAuthor Yum, Dae Hyun -
dc.identifier.citationVolume 44 -
dc.identifier.citationNumber 3 -
dc.identifier.citationStartPage 197 -
dc.identifier.citationEndPage 204 -
dc.identifier.citationTitle Cryptologia -
dc.type.journalArticle Article -
dc.description.isOpenAccess N -
dc.subject.keywordAuthor cryptanalysis -
dc.subject.keywordAuthor polyalphabetic cipher -
dc.subject.keywordAuthor substitution cipher -
dc.subject.keywordAuthor twist index -
dc.subject.keywordAuthor twist(+) algorithm -
dc.subject.keywordAuthor Vigenere cipher -

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