ALHARBI, E.; ALGHAZZAWI, D. Two Factor Authentication Framework Using OTP-SMS Based on Blockchain. Transactions on Engineering and Computing Sciences, [S. l.], v. 7, n. 3, p. 17–27, 2019. DOI: 10.14738/tmlai.73.6524. Disponível em: https://journals.scholarpublishing.org/index.php/TMLAI/article/view/6524. Acesso em: 26 apr. 2024.