Information processing apparatus, authentication system, information processing method, and program storage medium

An authentication system comprising:

• an in-vehicle device which controls locking and unlocking of a vehicle;
• and
• a server apparatus which manages an electronic key for the locking and unlocking,
• wherein the server apparatus comprises:
• a first controller configured to execute:
• transmitting a first electronic key to a first mobile terminal;
• and
• transmitting a second electronic key to a second mobile terminal, and
• the in-vehicle device comprises:
• a second controller configured to execute:
• in a case where there is an unlocking request from the first mobile terminal located outside the vehicle, receiving the first electronic key from the first mobile terminal to perform first authentication and unlocking the vehicle on condition that the first authentication is successful;
• and
• in a case where the first mobile terminal is located inside the vehicle, and there is an unlocking request from the second mobile terminal located outside the vehicle, receiving the second electronic key from the second mobile terminal to perform second authentication, receiving the first electronic key from the first mobile terminal located inside the vehicle to perform third authentication, and unlocking the vehicle on condition that both the second authentication and the third authentication are successful.