LIN, X.; HE, L.; YU, H. Improved Preimage Attacks on 3-Round Keccak-224/256. IACR Transactions on Symmetric Cryptology, [S. l.], v. 2021, n. 3, p. 84–101, 2021. DOI: 10.46586/tosc.v2021.i3.84-101. Disponível em: https://tosc.iacr.org/index.php/ToSC/article/view/9175. Acesso em: 17 oct. 2021.