M, Satheesh; M, Deepika. Implementation of Multifactor Authentication Using Optimistic Fair Exchange. Journal of Ubiquitous Computing and Communication Technologies, [S. l.], v. 2, n. 2, p. 70–78, 2020. DOI: 10.36548/jucct.2020.2.002. Disponível em: https://irojournals.com/jucct/article/view/1658. Acesso em: 21 mar. 2026.