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New Key-Recovery Attack on Reduced-Round AES
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Abstract: | A new fundamental 4-round property of AES, called the zero-difference property, was introduced by Rønjom, Bardeh and Helleseth at Asiacrypt 2017. Our work characterizes it in a simple way by exploiting the notion of related differences which was introduced and well analyzed by the AES designers. We extend the 4-round property by considering some further properties of related differences over the AES linear layer, generalizing the zero-difference property. This results in a new key-recovery attack on 7-round AES which is the first attack on 7-round AES by exploiting the zero-difference property. |
BibTeX
@article{tosc-2022-32079, title={New Key-Recovery Attack on Reduced-Round AES}, journal={IACR Transactions on Symmetric Cryptology}, publisher={Ruhr-Universität Bochum}, volume={2022, Issue 2}, pages={43-62}, url={https://tosc.iacr.org/index.php/ToSC/article/view/9713}, doi={10.46586/tosc.v2022.i2.43-62}, author={Navid Ghaedi Bardeh and Vincent Rijmen}, year=2022 }