Problem to be solved: to provide a new technology capable of carrying out the personal identification without the physical burden and psychological burden to the authenticated person.An authentication device for authenticating an authenticated person is provided with a pressure distribution distribution section for obtaining a pressure distribution in the surface of the object to be grasped based on an output of a plurality of pressure sensors provided on a holding body grasped by a human hand, and the authenticated person in front of said authenticator A grasping feature extracting section for extracting grasping feature data showing the characteristic of the method of grasping the authenticated person from the pressure distribution obtained when the object to be grasped is grasped, and a collation information storing section for prestoring the grasping characteristic data for collation, and the aforementioned recognition WitnessIn the case where the grasping characteristic data of the authenticated person is evaluated to coincide with the grasping characteristic data for collation, it is provided with an authentication section for judging that the authenticated person is a valid person.Diagram【課題】被認証者に対し身体的負担や心理的負担をほとんどかけずに本人認証を行うことが可能な新規な技術を提供する。【解決手段】被認証者の認証を行う認証装置が、ヒトの手で把持される被把持体に設けられた複数の感圧センサの出力に基づいて前記被把持体の表面における押圧力分布を取得する押圧力分布取得部と、前記被認証者が前記被把持体を把持したときに取得された押圧力分布から、前記被認証者の把持の仕方の特徴を示す把持特徴データを抽出する把持特徴抽出部と、照合用の把持特徴データをあらかじめ記憶する照合情報記憶部と、前記被認証者の把持特徴データと前記照合用の把持特徴データとを比較し、前記被認証者の把持特徴データが前記照合用の把持特徴データに一致すると評価された場合に、前記被認証者が正当な者であると判定する認証部と、を有する。【選択図】図1
