Information processing system, information processing method, and computer-readable storage medium

An information processing method comprising:

• acquiring first biometric information about a living body of a user during an authentication process, the biometric information being read by a user terminal, the user terminal equipped with certificate information about a public certificate of the user;
• acquiring second biometric information about a living body of the user during the authentication process, the second biometric information included in the certificate information stored in the user terminal;
• performing biometric authentication on the user based on the first biometric information and the second biometric information acquired from the user terminal;
• executing the instructions to register the first biometric information as registration biometric information in a case where the user is authenticated by the biometric authentication;
• registering information about the user authenticated by the biometric authentication;
• and
• providing a service to the user in response to a request from the user terminal in a case where the information about the user is registered.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute:

• acquiring first biometric information about a living body of a user during an authentication process, the first biometric information being read by a user terminal, the user terminal equipped with certificate information about public certificate of the user;
• acquiring second biometric information about a living body of the user during the authentication process, the second biometric information included in the certificate information stored in the user terminal;
• performing biometric authentication on the user based on the first biometric information and the second biometric information acquired from the user terminal;
• executing the instructions to register the first biometric information as registration biometric information in a case where the user is authenticated by the biometric authentication;
• registering information about the user authenticated by the biometric authentication;
• and
• providing a service to the user in response toa request from the user terminal in a case where the information about the user is registered.