Do you remember the time when you had to be very careful as to not ruin the form you were filling? Those times have long since passed and with digitized records of everything and computerized forms you can always find a way to update data.
Aadhar card has our biometric information as well as demographic information. It uses retina scanners and fingerprints scanners to get our biometric data.
We’ll talk about how these scanners work and capture the respective data. It’s simple to understand once you know about it.
Fingerprint Scanner:
Our fingerprints are fully developed when we are but infants. These fingerprints are the reasons we are able to have a grip on things. And they are unique for each and every individual. No two person have same fingerprints. They are different even in case of identical twins or triplets. In fact, they are the only way you can tell a difference between some of their identities.
Think about it. How does your regular fingerprint scanner work? Some of you just need to use it at your workplaces for attendance. So, how does it work? When you place your finger on the scanner it converts that into the code that the machine can understand and compares it with your earlier stored fingerprint.
Aadhar uses all of your 10 fingerprints and so it might take you some time to have them all captured and stored in the database.
Two of the primary means of scanning fingerprints are the optical scanner and capacitive scanner. The optical scanner works by taking a digital photograph of your fingerprints whereas the capacitive scanner takes measures your fingerprints electrically.
Retina Scanner:
There are blood vessels at the back of our retina. It uses a sensor to scan the pattern of these blood vessels which as it turns out is unique for every individual.
Similar to fingerprint scan an individual has to provide retina scans before they can use be used for any particular purpose.
A person has to sit still in front of the retina scanner for a few seconds, for it to capture their retinal biometrics.
This biometrics are then stored in the database and fetched whenever they are necessary. When they need to unlock a particular service or open a lock, you will have to place your finger on the scanner or provide a retina scan which is then compared to the scans that have been stored in the database.
If they match you will get to access the service or unlock it. Actually, there is no if, about it, you have to match the data with the one you have already provided.
It is easy to hack into things when they are unprotected or only protected by a thin layer of security system namely password. Biometric is unique to the person and hence harder to duplicate and provide the utmost level of security to all individuals.
