The Analysis of Graffiti Input and Its Application to Personal Identification.
Hiroshi Dozono, Hiroaki Sanada, Masanori Nakakuni, Yoshio Noguchi · Security and Management · 2004
---------------------------------------------Abstract Recently, the mobile devices such as PDA and smart phones are widely used to organize personal data and to access the host systems from remote places. But, these devices are easily accessed by irregular users due to the stealge or the lost property. The authentification by password or the fingerprint can protect them, but the convenience of the instant access will be lost from the device. For this problem, we propose an authentification method using the stylus inputs of usual operations. In this paper, we analyzed the character inputs of Graffiti, which is the input method of PalmOS devices, and showed the applicability of the Graffiti inputs for user identification. -------------------------------------------------------------