D. Freitas and J. Nakahara Jr.
"Impossible-Differential Attacks on block-cipher based Hash and Compression Functions using 3D and Whirlpool", in <em>Anais do XII Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais</em>, Curitiba, 2012, pp. 99-111, doi: <a href="https://doi.org/10.5753/sbseg.2012.20539">https://doi.org/10.5753/sbseg.2012.20539</a>.