Greetings dear friends of Project.HOPE, it is known that since ancient times the human being has tried to control access to places, or information considered valuable, and particularly in the current context of modernity we have tried to identify the people around us or who belong to our social environment, such as nationality, ethnicity, among other aspects that is being exploited by advances in digital technology to create species of digital certificates, digital signatures, smart cards and biometric identifiers.

Fig. 2 One of the biggest advances in digital biometric technology in fingerprint recognition. Image of public domain, Author: TheDigitalArtist, 2019

As far as biometric identifiers are concerned, these are nothing more than a series of data linked to the specific physiological or behavioral characteristics of each individual, which can be detected by devices and interpreted by computers so that they can be used as our representatives in the digital sphere.

For example, devices that interpret and analyze fingerprint sequences as a method of identification are of vital importance to establish security mechanisms, because they prevent unknown persons from accessing certain private or public spaces, which reduces information leakage and loss of tangible and intangible resources.

The scientific area that studies biometric data is called biometrics, which from a theoretical construct is the science of measuring the human body, and providing data or automatic records that serve for the specific recognition of persons based on behavioral or physical traits intrinsic to the bodily characteristics of each individual.

Now, although in the current context of modernity much progress has been made in terms of biometric modalities, it is essential to continue researching new and particular modalities such as hearing, smell, moles, scars, among other categories that allow for greater accuracy in the identification process.