FAQ on biometric technology
Biometric technology uses intrinsic human characteristics such as fingerprints, hand fingerprints, face characteristics, irises or retinates in the eyes, voice and many other things for identification purposes. Biometric safety systems are growing rapidly as they are considered safer than conventional security systems. After all, it is much harder to steal or duplicate a fingerprint than to do the same thing with a key or password.
This is a brief overview of biometric technology and here are some frequently asked questions:
1. Can fingerprints be stolen or copied from the biometric database?
Absolutely not. First, only the models are stored in the database. Second, only a tiny subset of the characteristics of the fingerprint is extracted and stored in the template when the finger is scanned. The model stored in the database contains enough information to verify that the finger presented is yours when your finger is scanned in the future, but the whole image of the fingerprint is not stored, it n There are no way to copy or steal fingerprints from the database.
2. Can biometric systems be fooled with fingerprints?
Yes, it is possible but little likely to deceive the biometric systems and if the system is fooled, it will only happen once. In addition to recognizing fingerprints, biometric systems are sufficiently sophisticated to recognize body temperature and blood flow to ensure that the finger presented comes from a living human being and not only a molded replica. Second, fingerprints are never exactly the same twice because of human factors. Fingerprints will be similar enough to identify individuals when digitized, but if an exact replica of a previously scanned fingerprint is again scanned, the biometric system will know and refuse access.
3. What is the registration capacity of biometric databases?
When authorized users have biometric data to be used for a future identification of the database, they are “registered”. The answer on the number of people can be registered depends on the system. This could be as little as 10 or up to 3,000 people. However, if the capacity is achieved, it is not difficult to increase the capacity if nothing else using an off-site database with greater capacity. Existing technology allows quick data recovery, even if the database is thousands of kilometers in another state.
4. What is the speed with which a fingerprint can be identified by a biometric system?
The speed at which fingerprints are identified depends on two factors. The first factor is the speed or power processing power. The second factor is the number of fingerprint models in the database. Obviously more models means an increase in processing time. In any case, the identification speed varies from 1 to 2 seconds so each way is very fast.
5. Do dry fingers affect biometric systems?
Generally, no, but if the digitized finger is too dry, the quality of the images may not be sufficient to create a suitable model. This is rare but the result will be a “false rejection” that means that the system rejects you falsely. All you will need to do is breathe to your finger or rub your fingers to provide moisture and try again.