The document discusses biometric systems for security. It defines biometrics as measuring biological traits to identify individuals. It then discusses the history of biometrics using fingerprinting in China in the 14th century. It describes the main types of biometric devices as behavioral (e.g. voice, signature) or physical (e.g. fingerprint, face) and lists their common uses including banking, attendance tracking, and data security. Finally, it compares biometric security to other methods and outlines some limitations such as noise in data and variations over time.

1. Mithun Paul
M.Sc in Computer Science.
University of Gour Banga,Malda
West Bengal,India

2. Biometric Introduction
History Of Biometric System Security
Biometric Devices & Its Work Area
Why Biometric Required?
Working Of Biometrics System
Comparison with any Other Devices
Limitation Of Biometric System
Conclusion & References

3. Biometric is a combination of two Greek words
Bio(Life) and Metric(To Measure).
It actually measures and analyzes the biological
traits of a human being.
Biometric is the automated process of
identifying or verifying an individual based upon
his or her behavioral or physical characteristics.

4.  The first known
example of Biometrics
in practice was a form
of finger printing being
used in China in the 14th
century, as reported by
explore Joao de Barros.
He wrote that the
Chinese merchants
were stamping
children’s palm print
and footprints on paper
with ink to distinguish
the young children from
another.

5. Types of Biometric
According to it’s working principle Biometric device
are mainly two types-
1.Behavioral
-Voice
-Signature
-DNA
2.Physical
-Fingerprint
-Palmprint
-Face
-Hand geometry
-Iris

6. In generally these devices are used any where, required
core security.
Such as-
The Banking sector
Company employee attendance
Store data
Send data/wealth
Now a day for attendance in school these device are
used.
ATMs

7. Identity theft is not possible
Password remembrance problem does not exist
Cannot be predicted or hacked
Cannot be shared
Perceived as more secure

8. These devices are work
through some steps-
Capturing
Pre-processing
Feature extension
Template matching
Matcher/Comparison
Application device

9. In the first step the device
receive data through sensor
then convert it some feature
extraction and make some
template to store database.
In feature this device
compare these template to
the user/client.

10. For storing data in computational memory devices
are first scan the finger/input device then make
equivalent graphical view for converting it
memory matching view. Devices are convert
finger/input device its equivalent binary value
and store, in future compare any finger/input
device with the storing data.

11. Electronic/other Devices
May be theft
Break the password
Forgotten password
Biometric Devices
Not possible to
Theft.
Impossible to break the
Password
No chance it is
machine dependent

12. Presence of noise in the sensed data
Variations in the enrolled data
Non-universality
It is an expensive security solution

13. Costly
Facial imagine can also hinder
Accurate identification
The scanning of eye is fearful
Missing body part is problem
False acceptance and rejection

14. Biometrics-based authentication has many
usability advantage over traditional system
such as password.
The greatest strength of biometric, the fact that
the biometrics does not change over time, is at
the same time its greatest libility . Once a set of
biometric data has compromised, it is
compromised forever.

15. Any Question??