On the Traceability of the Accountable Anonymous Channel. - Tomoaki Kosugi; Tomoki Hayafuji; Masahiro Mambo (AsiaJCIS, 2015)

Shoulder-Surfing Resistant Authentication Using Pass Pattern of Pattern Lock. - So Higashikawa; Tomoaki Kosugi; Shogo Kitajima; Masahiro Mambo (IEICE Trans. Inf. Syst., 2018)