Chou, Tung, Matthias J. Kannwischer, and Bo-Yin Yang. “Rainbow on Cortex-M4”. IACR Transactions on Cryptographic Hardware and Embedded Systems 2021, no. 4 (August 11, 2021): 650–675. Accessed April 20, 2024. https://tches.iacr.org/index.php/TCHES/article/view/9078.