Welcome to the resource topic for 2021/674
Title:
On the Effect of the Key-expansion Algorithm in Simon-like Ciphers
Authors: Jinyu Lu, Yunwen Liu, Tomer Ashur, Chao Li
Abstract:In this work we investigate how the choice of the key-expansion algorithm and its interaction with the round function affect the resistance of Simon-like ciphers against rotational-XOR (RX) cryptanalysis. We observe that among the key-expansion algorithms we consider, Simon is most resistant, while Simeck is much less so. Implications on lightweight ciphers design are discussed and open questions are proposed.
ePrint: https://eprint.iacr.org/2021/674
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