Dual authentication process

An information processing apparatus comprising circuitry configured to:

• acquire a result of collation between authentication target face information and registered target face information, the authentication target face information being acquired by reading target face information of an person to be authenticated, the registered target face information having been registered in advance in association with identification information;
• in a case where a plurality of pieces of identification information are found based on the result of collation indicating a plurality of pieces of registered target face information satisfying a predetermined authentication condition, the plurality of pieces of identification information of the identification information being associated with the plurality of pieces of registered target face information of the registered target face information,
• request entry of alternative authentication information;
• and
• authenticate the person to be authenticated, based on entered alternative authentication information and a plurality of pieces of alternative authentication registration information, the plurality of pieces of alternative authentication registration information being stored in association with the plurality of pieces of identification information.

An authenticating method, comprising:

• collating authentication target face information with registered target face information to generate a collation result, the authentication target face information being acquired by reading target face information of an person to be authenticated, the registered target face information having been registered in advance in association with identification information;
• in a case where a plurality of pieces of identification information are found based on the collation result indicating a plurality of pieces of registered target face information satisfying a predetermined authentication condition, the plurality of pieces of identification information of the identification information being associated with the plurality of pieces of registered target face information of the registered target face information,
• requesting entry of alternative authentication information;
• and
• authenticating the person to be authenticated, based on entered alternative authentication information and a plurality of pieces of alternative authentication registration information, the plurality of pieces of alternative authentication registration information being stored in association with the plurality of pieces of identification information.