TY - JOUR AU - Ghaedi Bardeh, Navid AU - Rijmen, Vincent PY - 2022/06/10 Y2 - 2024/03/29 TI - New Key-Recovery Attack on Reduced-Round AES JF - IACR Transactions on Symmetric Cryptology JA - ToSC VL - 2022 IS - 2 SE - Articles DO - 10.46586/tosc.v2022.i2.43-62 UR - https://tosc.iacr.org/index.php/ToSC/article/view/9713 SP - 43-62 AB - <p>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.</p> ER -