Guo, Zhiyuan, Renzhang Liu, Si Gao, Wenling Wu, and Dongdai Lin. “Direct Construction of Optimal Rotational-XOR Diffusion Primitives”. IACR Transactions on Symmetric Cryptology 2017, no. 4 (December 15, 2017): 169–187. Accessed January 18, 2025. https://icscm.ub.rub.de/index.php/ToSC/article/view/807.