Individual authentication device, individual authentication method, and individual authentication program

摘要

Problem to be solved: to provide a personal authentication device, a method and a program that can easily secure security with a small psychological and / or physical burden of the user to be authenticated.The individual authentication device 300 isA sending section 31 for sending a first acoustic signal to a portion of the user's headAn observatory 32 that observes a second acoustic signal which is an acoustic signal after the first acoustic signal propagates a portion of the user's headA calculating section 33 for calculating acoustic characteristics from a first acoustic signal and a second acoustic signalExtraction Part 34 extracting feature about user from acoustic characteristicsA storage control unit 35 for registering the feature amount as a first feature in the memory unitAn identification part 36 for collating the first characteristic quantity registered in the storage portion and the second characteristic quantity extracted after the registration of the first characteristic quantity is provided, and a storage part 37 for storing the first characteristic quantity is provided.If the identification part 36 identifies the user the sameAt each predetermined interval, the transmitter 31 sends a first acoustic signal.Diagram