International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 25 October 2012

Farzaneh Abed, Christian Forler, Eik List, Stefan Lucks, Jakob Wenzel
ePrint Report ePrint Report
In this paper, we propose the first full-round attacks on the PRESENT and LED lightweight ciphers. In our attacks, we use the independent-biclique approach which has been developed recently. The proposed attacks on PRESENT-80 and PRESENT-128 require $2^{60}$ and $2^{56}$ chosen plaintexts, and have time complexities of $2^{79.54}$ and $2^{127.42}$, respectively. Our attacks on LED-64 and LED-128 need $2^{56}$ and $2^{64}$ chosen plaintexts and the time complexities are equivalent to $2^{63.40}$ and $2^{127.25}$ encryptions.

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