, M. H. K. OTP Generation using SHA. International Journal on Recent and Innovation Trends in Computing and Communication, [S. l.], v. 3, n. 4, p. 2244–2245, 2015. DOI: 10.17762/ijritcc.v3i4.4220. Disponível em: https://ijritcc.org/index.php/ijritcc/article/view/4220. Acesso em: 3 may. 2024.