The infrastructure and technologies of computer security have undergone
several improvements and modifications. There is a growing trend toward building an
identity based on a combination of three factors: what you know, what you have, and
who you are in the present (biometrics). Knowledge-based and token-based
authentication systems have been deemed inadequate; however, new technology from
the East has overcome these issues (biometrics). There is a chance that you will lose
access to your resources if you forget your password. Biometrics is the science of
identifying a person without disclosing private information. Biometrics is an
authentication mechanism that uses a person's unique biological characteristics. This
article examines the history and evolution of the many biometric identification
modalities and the distinguishing characteristics that each of them possesses. The
ability to recognize faces is one of the most fundamental ways in which humans have
linked as individuals. Facial recognition is a sort of visual processing that works with
human data. As there were no mirrors available to ancient humans, facial descriptions
were typically established through the gaze of another person or, at best, through the
description of the person's reflection in clear water. This was the normal practice for an
extended period of time.
Keywords: Biometrics, Channel response, Distinctiveness, Minutiae features, Verification.
