Welcome to the resource topic for 2015/964
Title:
Improved Linear (hull) Cryptanalysis of Round-reduced Versions of KATAN
Authors: Danping Shi, Lei Hu, Siwei Sun, Ling Song
Abstract:KATAN is a family of block ciphers published at CHES 2009. Based on the Mixed-integer linear programming (MILP) technique, we propose the first third-party linear cryptanalysis on KATAN. Furthermore, we evaluate the security of KATAN against the linear attack without ignoring the dependence of the input bits of the 2\times 1 S-box(the AND operation). Note that in previous analysis, the dependence is not considered, and therefore the previous results are not accurate. Furthermore, the mounted 131/120-round attack on KATAN32/48 respectively by our 84/90-round linear hull is the best single-key known-plaintext attack. In addition, a best 94-round linear hull attack is mounted on KATAN64 by our 76-round linear hull.
ePrint: https://eprint.iacr.org/2015/964
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