FINGERPRINT KEY / Key

There are numerous people living on earth, and most of them own their own cars. Even though there are so many people having their own cars, there is only limited ways of unlocking the door, using keys or smart keys. These methods are vulnerable in security. To this end, I have come up with an idea of finger print car-key, the key that is only to myself.
It is a fingerprint verification key. To be specific, it is a portable fingerprint verifier. To open a door, the body structure of the key and the car owner’s fingerprints are needed. Without those, the door will not open to anyone.