1. HOW
BIOMETRIC SYSTEMS WORKS?
Instead
of using something you have (like a key) or something you know (like a
password), biometrics you are to identify you. Biometrics can use physical characteristics, like your
face, fingerprints, irises or veins, or behavioral
characteristics like your voice,
handwriting or typing rhythm. Unlike keys and passwords, your personal traits
are extremely difficult to lose or forget. They can also be very difficult to
copy. For this reason, many people consider them to be safer and more secure
than keys or passwords.
Biometric systems can seem complicated, but they all use the same three
steps:
·
Enrollment: The
first time you use a biometric system, it records basic information about you,
like your name or an identification number. It then captures an image or
recording of your specific trait.
·
Storage:
Contrary to what you may see in movies, most systems don’t store the complete
image or recording. They instead analyze your trait and translate it into a
code or graph. Some systems also record this data onto a smart
cardthat
you carry with you.
·
Comparison: The
next time you use the system, it compares the trait you present to the
information on file. Then, it either accepts or rejects that you are who you
claim to be.
Systems also use the same three
components:
·
A sensor that
detects the characteristic being used for identification.
·
A computer that
reads and stores the information.
- Software that analyzes the
characteristic, translates it into a graph or code and performs the actual
comparisons.
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