Geodesic
Differential cryptanalysis of the MARS block cipher
Prikladnaâ diskretnaâ matematika, no. 4 (2009), pp. 56-63

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In this work we present a differential attack on MARS which breaks 8 core and 8 mixing rounds with pre- and post-whitening. This attack is based on a new 8-core round differential characteristic with probability $2^{-98}$ and allows to recover more subkeys bits than previously published attacks (752 instead of 682) faster than exhaustive key search. The success probability of the attack is more than 0{,}99. The attack requires $2^{105}$ chosen plaintexts, $2^{109}$ bytes of memory and $2^{231}$ encryptions.
Keywords: block cipher, differential attack, Advanced Encryption Standard
Mots-clés : MARS. 
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     author = {A. I. Pestunov},
     title = {Differential cryptanalysis of the {MARS} block cipher},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {56--63},
     publisher = {mathdoc},
     number = {4},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2009_4_a4/}
}
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A. I. Pestunov. Differential cryptanalysis of the MARS block cipher. Prikladnaâ diskretnaâ matematika, no. 4 (2009), pp. 56-63. http://geodesic.mathdoc.fr/item/PDM_2009_4_a4/