In this paper, we present known-key attacks on block cipher Rijndael for 192-bit block and 256-bit block. Our attacks work up to 8 rounds for 192-bit block and 9 rounds for 256-bit block, which are one round longer than the previous best known-key attacks. We then search for the parameters for the ShiftRow operation which is stronger against our attacks than the one in the Rijndael specification. Finally, we show a parameter for 192-bit block which forces attackers to activate more bytes to generate a truncated differential path, and thus enhances the security against our attacks. © 2010 Springer-Verlag.
CITATION STYLE
Sasaki, Y. (2010). Known-key attacks on Rijndael with large blocks and strengthening ShiftRow parameter. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 6434 LNCS, pp. 301–315). Springer Verlag. https://doi.org/10.1007/978-3-642-16825-3_20
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