Problem to be solved: to provide a biometric information authentication device capable of suppressing an illegal authentication.A start switch device 1 as a biometric authentication device has a plurality of storage regions, and a non-volatile memory 5A for storing registered bio information 51 generated in accordance with the biometric information of the Registrar in a storage area and storing the registered biometric information 51 in the non-volatile memory 5A is stored in a non-volatile memory The control unit 5 is provided with a control unit 5 which is arranged so as to be irregularly arranged and stored without being stored in the order in which the regions are aligned.Diagram【課題】生体認証の不正を抑制することができる生体情報認証装置を提供する。【解決手段】生体認証装置としてのスタートスイッチ装置１は、複数の保存領域を有し、登録者の生体情報に基づいて生成された登録生体情報５１を保存領域に記憶する不揮発性メモリ５ａと、登録生体情報５１を不揮発性メモリ５ａに記憶させる際、保存領域が並ぶ順番に格納せずに不規則に並び変えて記憶させる制御部５と、を備えて概略構成されている。【選択図】図２
