Authentification device, authentification method, authentification program and computer readable recording medium

摘要

An authentication device having high resistance to spoofing is provided. A portable telephone includes a camera, which is switched between a close up mode enabling photographing at close up and a normal photography mode, for imaging the person to be authenticated; an examining section for detecting whether or not the camera is in the close up mode, and a determining section for determining that the person to be authenticated is not the person in question if the examining section detects that the mode of the imaging unit of when imaging the person to be authenticated is not the close up mode.