Liu, Fukang, Takanori Isobe, and Willi Meier. “Cube-Based Cryptanalysis of Subterranean-SAE”. IACR Transactions on Symmetric Cryptology 2019, no. 4 (January 31, 2020): 192–222. Accessed April 19, 2024. https://tosc.iacr.org/index.php/ToSC/article/view/8462.