KNUDSEN, L. R. Block Ciphers: Analysis, Design and Applications. DAIMI Report Series, [S. l.], v. 23, n. 485, 1994. DOI: 10.7146/dpb.v23i485.6978. Disponível em: https://tidsskrift.dk/daimipb/article/view/6978. Acesso em: 9 may. 2024.