A Novel Public Key Cryptosystem and Digital Signatures. European Journal of Engineering Science and Technology, [S. l.], v. 3, n. 1, p. 22–30, 2020. DOI: 10.33422/ejest.v3i1.157. Disponível em: https://www.dpublication.com/journal/index.php/EJEST/article/view/157. Acesso em: 25 oct. 2025.