While the use of biometric readers is democratized worldwide to identify users, experts warn that not all systems on the market offer the same security guarantees.
We are witnessing a process of integrating Security Access Control System in India as a source of identification in more and more day-to-day uses. Unblocking mobile phones, making payments by footprint authentication in shops, participating in voting by biometric patterns and even incorporating this type of sensors to activate the mechanisms for opening and starting vehicles are applications that, if they are not yet part of our day by day, they are getting closer and closer to becoming every day.
The biggest advantage it offers is to turn the person into their own access key. It is finished loading with key chains or cards that in case of loss can be used by whoever owns them. Biometrics offers a user verification system that is very difficult to impersonate.
We speak of very diverse applications, and for that reason, the advances go in different ways. Right now, the news refers to the ability of facial recognition systems to locate certain people within a crowd, as is already happening in China. In these cases, the result is not 100% accurate, but it goes to say that the person identified is very likely to be the one sought, but without offering a total certainty. These systems are based on 2D images and do not provide enough information on the face to guarantee the success of the result.
Currently, fingerprint readers are the most widespread identification systems, since they present great advantages over the previous ones if we take into account the ease of use, the size and the relationship between the cost and the security they offer. But do not forget that not all fingerprint readers are the same.
It is important to consider a series of decisive variables when opting for Fingerprint Door Locks and always remembering that not all fingerprint readers offer the same guarantees. Accessing the data of a personal mobile phone is not the same as entering a physical space where the security reasons required are maximum. Therefore, it is important to distinguish what different systems on the market can offer.
Capacitive readers, which are usually placed on mobile phones, are based on a silicon chip with thousands of transistors that are affected by the electric field generated by the crests and valleys of the fingerprint. What they do is generate a monochromatic image. An ideal system for economic readers and with few users: between 10 and 250 depending on the model.
More precision offered by fingerprint reading systems with optical technology. In this case, a micro camera captures the image that is formed by placing a finger on a glass and offers an image with a quality superior to that of capacitive sensors. However, they have the drawback of being affected by the degree of humidity: a very dry finger almost does not create an image and a wet finger that generates a black spot. This system may be suitable for 1: N identification of a maximum of 1000 users.