Can my fingerprint be stolen from the database?
No, only templates are stored in the system. When a finger is scanned, the characteristic points, or minutiae on the image are extracted and turned into a template. Only a digital representation of the specific points is stored, not the image which is discarded after feature extraction. Since the template only holds information about points located on your fingerprint, the original image cannot be restored by any means.
Is it possible to cheat the system with a 3D finger replica?
To prevent an imposter from gaining access to the system with a fingerprint replica the Access-Guard and Systems-Guard have applied a patented biosensor. Their living-finger detection makes sophisticated measurements of static and dynamic properties of the presented finger and will block the entire authentication process unless the presented finger passes the test as living. The biosensor is the first line of defense against an unauthorized person trying to gain access to the system.
I have dry fingers, can I still use the system?
Most often a dry finger is not a problem, but if the finger is too dry, the image quality will not be sufficient for creating a high quality template. This may result in a so-called false reject, which means that you have to present the finger on the scanner one more time. If you experience a false reject and you think it is because of a dry finger, breathe on your finger and try again.
I have cut my finger, can I still use the system?
Due to the large scanning surface of our scanner, authentication is based on a high number of characteristic points. In addition to providing high reliability it also makes our system less sensitive to cuts and minor injuries of the finger. However, it is recommended to enroll minimum the thumbs of both hands in case the finger normally used for authentication is unavailable, e.g. due to a band-aid or cast.
Why is living finger detection important?
The patent protected biosensor is the first line of defense against impostors and an important component in ensuring the integrity of the system. The biosensor will prevent capture from taking place if it is presented with a finger substitute. Ensuring a high level of system integrity is important, because a high quality match decision based on a finger replica is still a high quality match decision ñ but the system would not be suitable for high-security applications.
