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Zero-correlation linear attack on reduced-round SKINNY
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AI
DOI：10.1007/s11704-022-2206-2.png)
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Abstract
En 中文
At ToSC 2019, Ankele et al. proposed a novel idea for constructing zero-correlation linear distinguishers in a related-tweakey model. This paper further clarifies this principle and gives a search model for zero-correlation distinguishers. As a result, for the first time, the authors construct 15-round and 17-round zero-correlation linear distinguishers for SKINNY-n-2n and SKINNY-n-3n, respectively, which are both two rounds longer than Anekele et al.'s. Based on these distinguishers, the paper presents related-tweakey zero-correlation linear attacks on 22-round SKINNY-n-2n and 26-round SKINNY-n-3n, respectively.
Keywords:
tweakable block cipher
zero-correlation
related-tweakey
SKINNY
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