Banik, Subhadeep, Fatih Balli, Francesco Regazzoni, and Serge Vaudenay. 2020. “Swap and Rotate: Lightweight Linear Layers for SPN-Based Blockciphers”. IACR Transactions on Symmetric Cryptology 2020 (1):185-232. https://doi.org/10.13154/tosc.v2020.i1.185-232.