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Biometric locks are based on fingerprint authentication, and to be more exact, a certain individual’s fingerprint. Unlike reading a fingerprint in a manner of forensic examination, these locks read the print in a different method. In order for us to understand the authentication process we first would have to understand the anatomy of a single fingerprint.
Fingerprints have many elements to them, they include ridges or elevated lines of flesh which create the unique and various patterns of the fingerprint and they are separated by valleys. These ridges form all kinds of different patterns which include curves, arches, loops and much more. Minutiae are discontinuities in the ridges, which also come in different shapes and various forms such as bifurcations which are like forks and also there are crossovers that are more like intersections.
The basis of the print authentication is relies on a select amount of subset features from the entire print. There is a special formula that reduces the data collected on a fingerprint only to the information which is completely unique to that fingerprint alone. An example would be to perform a data collection only on a very specific type of series of ridges as we mentioned earlier. In other words, the entire data of the fingerprint is not stored, only a few key factors which represent that print is stored instead. And as we also mentioned before, this is quite different from the forensic meaning of fingerprint which usually requires an entire print.
Your average data file of a print is less than a 1000 bytes, this is used for either a one on one or a one to several verification methods and ordinarily takes just a few seconds. Forensic data files of prints are much larger, they reach over 250 kilo-bytes, and this is mainly due to the fact that it stores a complete fingerprint, and these files are used in large databases such as the FBI, CIA and other law enforcement agencies to allow one to many searches.
The actual operation of a fingerprint authentication is very easy. Initially the end-user would first have to submit a fingerprint sample to register in the system. The sensor will capture the prints image. This will be translated by the formula we mentioned earlier and only a few select features will be saved and stored. This procedure can be done either on a remote or local computer. On a biometric lock this is usually done locally. When the user wishes to gain entry from now on, all they would have to do is swipe their finger against a sensor which will in turn identify and match it with any of the data files stored, if a match is found, access will be granted. This process usually takes between 1 to two seconds.
I was locked out the other night after taking my daughter for a walk it was awful. Thank God I had my phone and was able to search for a locksmith near me and American Best was opened , they sent the guy right out and he unlocked my door within 20 minutes of my call. Read More…
Called this company late last Tuesday night, I had just got off the train after working all day only to realize I did not have my car keys. Tom came right out to the station and made me a new key so I could finally get home. Thanks again for answering the phone and sending someone out in the middle of the night.