YANG, Z.; BAO, Z.; JIN, C.; LIU, Z.; ZHOU, J. PLCrypto: A Symmetric Cryptographic Library for Programmable Logic Controllers. IACR Transactions on Symmetric Cryptology, [S. l.], v. 2021, n. 3, p. 170–217, 2021. DOI: 10.46586/tosc.v2021.i3.170-217. Disponível em: https://tosc.iacr.org/index.php/ToSC/article/view/9178. Acesso em: 17 oct. 2021.