Philipp Jovanovic

A Fault Attack on the LED Block Cipher

Philipp Jovanovic, Martin Kreuzer, Ilia Polian

International Workshop on Constructive Side-Channel Analysis and Secure Design (COSADE), 2012


A fault-based attack on the new low-cost LED block cipher is reported. Parameterized sets of key candidates called fault tuples are generated, and filtering techniques are employed to quickly eliminate fault tuples not containing the correct key. Experiments for LED-64 show that the number of remaining key candidates is practical for performing brute-force evaluation even for a single fault injection. The extension of the attack to LED-128 is also discussed.