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Erschienen in:
2006 | OriginalPaper | Buchkapitel
New Observation on Camellia
verfasst von : Duo Lei, Li Chao, Keqin Feng
Erschienen in: Selected Areas in Cryptography
Verlag: Springer Berlin Heidelberg
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In this paper, some observations on Camellia are presented, by which the Square attack and the Collision attack are improved. 11-round 256-bit Camellia without
FL
function is breakable with complexity of 2
250
encryptions. 9-round 128-bit Camellia without
FL
function is breakable with the complexity of 2
90
encryptions. And 10-round 256-bit Camellia with
FL
function is breakable with the complexity of 2
210
encryptions and 9-round 128-bit Camellia with
FL
function is breakable with the complexity of 2
122
encryptions. These results are better than any other known results. It concludes that the most efficient attack on Camellia is Square attack.