Pranata, S., H. Nugroho, and H. Yamaki. “Analisis Dan Implementasi Protokol Otentikasi FIDO U2F”. Ultima Computing : Jurnal Sistem Komputer, Vol. 9, no. 1, June 2017, pp. 30-35, doi:https://doi.org/10.31937/sk.v9i1.571.