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01490nam a2200193Ia 4500 |
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10.46586-TOSC.V2022.I1.212-219 |
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220425s2022 CNT 000 0 und d |
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|a 2519173X (ISSN)
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245 |
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|a Addendum to Linear Cryptanalyses of Three AEADs with GIFT-128 as Underlying Primitives
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260 |
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|b Ruhr-Universitat Bochum
|c 2022
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856 |
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|z View Fulltext in Publisher
|u https://doi.org/10.46586/TOSC.V2022.I1.212-219
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|a In ToSC 2021(2), Sun et al. implemented an automatic search with the Boolean satisfiability problem (SAT) method on GIFT-128 and identified a 19-round linear approximation with the expected linear potential being 2−117.43, which is utilised to launch a 24-round attack on the cipher. In this addendum, we discover a new 19-round linear approximation with a lower expected linear potential. However, in the attack, one more round can be appended after the distinguisher. As a result, we improve the previous optimal linear attack by one round and put forward a 25-round linear attack. Given that the optimal differential attack on GIFT-128, for now, covers 27-round, the resistances of the cipher against differential and linear attacks still have a 2-round gap. © 2022, Ruhr-Universitat Bochum. All rights reserved.
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|a Differential cryptanalysis
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|a GIFT-128
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|a Linear cryptanalysis
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700 |
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|a Sun, L.
|e author
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|a Wang, M.
|e author
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|a Wang, W.
|e author
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773 |
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|t IACR Transactions on Symmetric Cryptology
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