Banik, Subhadeep, Fatih Balli, Francesco Regazzoni, and Serge Vaudenay. “Swap and Rotate: Lightweight Linear Layers for SPN-Based Blockciphers”. IACR Transactions on Symmetric Cryptology 2020, no. 1 (May 7, 2020): 185–232. Accessed April 25, 2024. https://tosc.iacr.org/index.php/ToSC/article/view/8563.