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1993 | ReviewPaper | Buchkapitel

Cryptanalysis of LOKI 91

verfasst von : Lars Ramkilde Knudsen

Erschienen in: Advances in Cryptology — AUSCRYPT '92

Verlag: Springer Berlin Heidelberg

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In this paper we examine the redesign of LOKI, LOKI 91 proposed in [5]. First it is shown that there is no characteristic with a probability high enough to do a successful differential attack on LOKI 91. Secondly we show that the size of the image of the F-function in LOKI 91 is 8/13×232. Finally we introduce a chosen plaintext attack that reduces an exhaustive key search on LOKI 91 by almost a factor 4 using 233+2 chosen plaintexts.

Metadaten
Titel
Cryptanalysis of LOKI 91
verfasst von
Lars Ramkilde Knudsen
Copyright-Jahr
1993
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/3-540-57220-1_62

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