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Title:
Biclique Cryptanalysis Of PRESENT, LED, And KLEIN
Authors: Farzaneh Abed, Christian Forler, Eik List, Stefan Lucks, Jakob Wenzel
Abstract:In this paper, we analyze the resistance of the lightweight ciphers PRESENT, LED, and KLEIN to biclique attacks. Primarily, we describe attacks on the full-round versions PRESENT-80, PRESENT-128, LED-64, LED-128, KLEIN-80, and KLEIN-96. Our attacks have time complexities of 2^{79.49}, 2^{127.32}, 2^{63.58}, 2^{127.42}, 2^{79.00}, and 2^{95.18} encryptions, respectively. In addition, we consider attacks on round-reduced versions of PRESENT and LED, to show the security margin for which an adversary can obtain an advantage of at least a factor of two compared to exhaustive search.
ePrint: https://eprint.iacr.org/2012/591
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