Fingerprint authentication device

A fingerprint authentication method for use with a finger and a vehicle having a sensor and a sensor unit, the fingerprint authentication method comprising:

• performing, by the sensor provided in the vehicle, a detection process that detects a fingerprint of the finger touching the sensor;
• performing, by the sensor unit, a fingerprint authentication process based on the fingerprint detected through the detection process performed by the sensor,
• determining, by the sensor unit, whether a power supply of the vehicle is ON,
• determining, by the sensor unit, whether a predetermined authentication is successful, the predetermined authentication being different from the fingerprint authentication, and
• in response to the power supply of the vehicle being ON and the predetermined authentication being successful, performing, by the sensor unit, the detection process only when a predetermined condition has been satisfied.

A non-transitory computer readable medium storing a program for use with a finger and a vehicle, the program causing a sensor and a sensor unit to perform steps comprising:

• performing, by the sensor provided in the vehicle, a detection process that detects a fingerprint of the finger touching the sensor;
• performing, by the sensor unit, a fingerprint authentication process based on the fingerprint detected through the detection process performed by the sensor,
• determining, by the sensor unit, whether a power supply of the vehicle is ON,
• determining, by the sensor unit, whether a predetermined authentication is successful, the predetermined authentication being different from the fingerprint authentication, and
• in response to the power supply of the vehicle being ON and the predetermined authentication being successful, performing, by the sensor unit, the detection process only when a predetermined condition has been satisfied.