AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND INFORMATION PROCESSING DEVICE

The present technology relates to an authentication device, an authentication method, a program, and an information processing device capable of performing user authentication using biometric information without storing the biometric information. The authentication device performs user authentication by comparing answer information that is generated by converting authentication information generated by converting basic information using biometric information for generation using biometric information for authentication with correct answer information. The present technology is applied to, for example, an authentication device that performs biometric authentication.