Biometric

What best describes: Biometric Security

• A method of authentication based only on an individuals biological basis

• A method of authentication based on an individuals physiological basis

• Fingerprints, Iris & Voice recognition

• None of the above

Answer explanation

A Biometric can be split into two words: Biological and Metric.

This focuses on how the biological data impacts our physiological being i.e. how our unique DNA forms unique fingerprints, etc.

Therefore in security, we focus on these physiological traits as mode of authentication

What is Gait Analysis?

• The ability to analyse how someone speaks

• The ability to analyse how someone's fingerprints are made

• The ability to analyse how someone walks

• The ability to analyse how someone's face is formed

Answer explanation

Gait Analysis focuses on how someone walks. This is very useful when we do not have any form of identification except for this.

An example of when this is used is when a criminal is on a move but we cannot find their identity, so we compare the way they walk to the way how other people walk.

What is the function of an Iris

• Controls the size of the pupil

• Contains cells that detect light

• Focuses image of an object

• Controls the shape of the lens

Answer explanation

The function of an Iris is to control how the size of the pupil.

For instance, when it is dark, the size of the pupil may increase to allow more light in and vice versa.

True or False:

Gait Analysis is a type of Biometric

• True

• False

Answer explanation

Gait Analysis is a form of Biometric because everyone has a unique way of walking

Which form of Biometric Security does NOT require active human participation

• Fingerprint Scanning

• Iris and Retina Scanning

• Voice Recognition

• Gait Analysis

Answer explanation

Gait analysis does not require an active form of human participation because we do not voluntarily let someone analyse the way we walk.

For instance, when we can our fingerprint, we voluntarily place our finger on the scanner, whereas in gait analysis someone could be watching us on the CCTV.