Theoretical Analysis of χ 2 Attack on RC6
Masahiko Takenaka, Takeshi Shimoyama, Takeshi Koshiba · Medical Entomology and Zoology · 2004
In this paper, we give a theoretical analysis of χ2 attack proposed by Knudsen and Meier on the RC6 block cipher. To this end, we propose the method of security evaluation against χ2 attack precisely including key dependency by introducing a method Transition Matrix Computing. Previously, no theoretical security evaluation against χ2 attack was known, it has been done by computer experiments. We should note that this is the first results that a theoretical evaluation against χ2 attack is shown.