Pranata, Sunderi, Hargyo Nugroho, and Hirofumi Yamaki. 2017. “Analisis Dan Implementasi Protokol Otentikasi FIDO U2F”. Ultima Computing : Jurnal Sistem Komputer 9 (1), 30-35. https://doi.org/https://doi.org/10.31937/sk.v9i1.571.