The present invention generates biometric information used for verification by considering individual differences. An information processing device (1) generates verification information that is pre-registered when authenticating a user by using biometric information. A retention unit (1a) retains a biological body (2) when acquiring biometric information from the biological body (2). An information acquisition unit (1c) acquires biometric information from the retained biological body (2). A position modification unit (1b) modifies the position of the retained biological body (2). As a consequence, the information processing device (1) is able to acquire the biometric information of the biological body (2) in various positions. An evaluation unit (1d) evaluates the feature amount of the sets of biometric information acquired by the information acquisition unit (1c) for each of the various positions. A generation unit (1e) selects, from among the multiple sets of acquired biometric information, the set of biometric information to be used for verification on the basis of the evaluation performed by means of the evaluation unit (1d). The generation unit (1e) generates verification information used for verifying the biological body from a set of position information with which it is possible to identify the position corresponding to the selected biometric information.
