Information processing apparatus, authentication system, authentication method, and authentication program using biometric information for authentication

In order to simplify the operation and lower the misidentification rate, the MFP includes an HDD to store a temporary record including a fingerprint image of a user and user identification information, a fingerprint image accepting portion to accept a fingerprint image of a user, an extracting portion to extract one of the temporary records stored in the HDD that includes a fingerprint image matching the accepted fingerprint image as a target record, a first requesting portion, when the target record is extracted, to transmit an authentication request, including the user identification information included in the target record and the fingerprint image, to an authentication server, and a permission portion to permit login of the user having the accepted fingerprint image, based on an authentication result received from the authentication server in response to transmission of the authentication request.