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BSSE Group-D
Date: (4/03/15)
Topic: How Does Biometric Works?
Group Members:
 Shayan Aslam
 Faisal Iqbal
 Muhammad Zubair
 Saqib Masood
Submitted To: Mr. Usman
Biometrics: Biometric is combination of two words. The term "biometrics" is derived
from the Greek words bio (life) and metric (to measure). For our use, biometrics refers
to authentication techniques that rely on measurable physical characteristics that can be
automatically checked.
Some Examples of Different Biometrics
 Face
 Fingerprint
 Voice
 Palm Print
 Hand Geometry
 Iris
 Retina Scan
 Voice
 DNA
 Keystroke
How does a biometric system work?
As we know biometric system is used to identify or verify peoples identity, but first we must
collect their biometric data. This system works in two steps. First, it must process the
collection of your biometric identity, your fingertip or voice for example. This is known
as enrolment. The second step is when the system checks your fingertip in the databases
to verify or identify your identity.
Mechanism of Fingerprint biometric:
A fingerprint scanner
system has two basic
jobs -- it needs to get
an image of your
finger, and it needs to
determine whether the
pattern of ridges in this image matches the pattern of ridges in pre-scanned images Only
specific characteristics, which are unique to every fingerprint, are filtered and saved as an
encrypted biometric key or mathematical representation. No image of a fingerprint is ever
saved, only a series of numbers (a binary code), which is used for verification. The algorithm
cannot be reconverted to an image, so no one can duplicate your
What Good it does to you?
We know that our current security systems are based on Passwords, or ID/swap cards. The
problem with these security system is that a card can be lost, a pin/password can be forgotten.
If a pin or password is lost or forgotten it can be changed and reissued but a biometric
identification cannot because it is based on the identification of individual. Ones individual
identification remains along with him from to birth to death.
Top Advantages of Biometric:
There are several ways a system can verify that somebody is who they say they are. Most
systems are looking for one or more of the following:
 What You Have.
 What You Know.
 Who You Are.
To get pass through what you have system, you need to have some sort of token, such as
an identity card with a magnetic strip. Then a what you know section requires you to enter
a password or a PIN number. A who you are is actually looking for physical evidence that
you are who you say you are  a specific person.
Who you are systems like fingerprint have number of advantages over other systems.
 Fingerprints are much harder to fake than identity cards.
 You cant guess a fingerprint.
 You cant forget your fingerprints like you can forget a password.

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  • 1. BSSE Group-D Date: (4/03/15) Topic: How Does Biometric Works? Group Members: Shayan Aslam Faisal Iqbal Muhammad Zubair Saqib Masood Submitted To: Mr. Usman
  • 2. Biometrics: Biometric is combination of two words. The term "biometrics" is derived from the Greek words bio (life) and metric (to measure). For our use, biometrics refers to authentication techniques that rely on measurable physical characteristics that can be automatically checked. Some Examples of Different Biometrics Face Fingerprint Voice Palm Print Hand Geometry Iris Retina Scan Voice DNA Keystroke How does a biometric system work? As we know biometric system is used to identify or verify peoples identity, but first we must collect their biometric data. This system works in two steps. First, it must process the collection of your biometric identity, your fingertip or voice for example. This is known as enrolment. The second step is when the system checks your fingertip in the databases to verify or identify your identity. Mechanism of Fingerprint biometric:
  • 3. A fingerprint scanner system has two basic jobs -- it needs to get an image of your finger, and it needs to determine whether the pattern of ridges in this image matches the pattern of ridges in pre-scanned images Only specific characteristics, which are unique to every fingerprint, are filtered and saved as an encrypted biometric key or mathematical representation. No image of a fingerprint is ever saved, only a series of numbers (a binary code), which is used for verification. The algorithm cannot be reconverted to an image, so no one can duplicate your What Good it does to you? We know that our current security systems are based on Passwords, or ID/swap cards. The problem with these security system is that a card can be lost, a pin/password can be forgotten. If a pin or password is lost or forgotten it can be changed and reissued but a biometric identification cannot because it is based on the identification of individual. Ones individual identification remains along with him from to birth to death. Top Advantages of Biometric: There are several ways a system can verify that somebody is who they say they are. Most systems are looking for one or more of the following: What You Have. What You Know. Who You Are. To get pass through what you have system, you need to have some sort of token, such as an identity card with a magnetic strip. Then a what you know section requires you to enter a password or a PIN number. A who you are is actually looking for physical evidence that you are who you say you are a specific person.
  • 4. Who you are systems like fingerprint have number of advantages over other systems. Fingerprints are much harder to fake than identity cards. You cant guess a fingerprint. You cant forget your fingerprints like you can forget a password.