2001 | OriginalPaper | Buchkapitel
Improved Cryptanalysis of Rijndael
verfasst von : Niels Ferguson, John Kelsey, Stefan Lucks, Bruce Schneier, Mike Stay, David Wagner, Doug Whiting
Erschienen in: Fast Software Encryption
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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We improve the best attack on Rijndael reduced to 6 rounds from complexity 272 to 244. We also present the first known attacks on 7- and 8-round Rijndael. The attacks on 8-round Rijndael work for 192- bit and 256-bit keys. Finally, we discuss the key schedule of Rijndael and describe a related-key attack that can break 9-round Rijndael with 256-bit keys.