Arribas, V., B. Bilgin, G. Petrides, S. Nikova, and V. Rijmen. “Rhythmic Keccak: SCA Security and Low Latency in HW”. IACR Transactions on Cryptographic Hardware and Embedded Systems, vol. 2018, no. 1, Feb. 2018, pp. 269-90, doi:10.13154/tches.v2018.i1.269-290.