Defending Biometric Templates by Multilevel Authentication using BioCryptography and Steganography Techniques
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International Journal of Computer Trends and Technology (IJCTT) | 
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| © 2016 by IJCTT Journal | ||
| Volume-36 Number-1 |
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| Year of Publication : 2016 | ||
| Authors : T. Leena Premakumari, Dr. S. Arul Jothi | ||
| DOI : 10.14445/22312803/IJCTT-V36P108 |
T. Leena Premakumari, Dr. S. Arul Jothi "Defending Biometric Templates by Multilevel Authentication using BioCryptography and Steganography Techniques". International Journal of Computer Trends and Technology (IJCTT) V36(1):43-47, June 2016. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.
Abstract -
Defending information against some
intruders is a most demanding task in our computer
world. Now a day’s information sharing and
transferring are the common task performed over
the network. In this paper we are defending the
biometric templates from the malicious users.
Biometric templates may be modified by attacker.
Here we are using steganography techniques and
biocryptography techniques as a multilevel
authentication. Biometric is a method of identifying
a person or verifying the identity of a person based
on physiological or behavioral characteristics such
as knuckles, skin, nail etc. The biometric system
offers a greater security when compared to the
password authentication or token based system.
Biometric templates are acquired from the subject as
a raw biometric data and we are extracting a feature
from the data and compare the feature set against
the template stored in the database in order to
identify the person. And at the same time it is
possible for the intruders to identify or access the
data from the database where the data is stored as
the biometric data. So defending the data is the
major concern for that we are using the following
techniques such as steganography and
biocryptography. In biocryptography we can defend
the important data from the hackers. Cryptography
provides the means to further protect Biometric
Templates at these critical junctures. It is the science
of scrambling information and data which is transit
across a network medium, and then descrambling it
at the receiving end into a decipherable format. That
way, if the scrambled information and data were to
be intercepted by a third party, there is not much
which can be done unless they possess the keys for
descrambling the information. These concepts of
scrambling and descrambling can be very easily
applied to biometrics. This is known as “Bio-
Cryptography”. The next level of protection is by
using the steganography which is one of the major
techniques used for secret communication.
“Steganography is an art of sending secret messages
over public channel in such a way that only the
intended recipient knows about the existence of the
message” and it is a skill as science of hiding a top
secret communication in a cover media such as
image, text, signal or sound in such manner that
nobody, apart from the deliberate recipient knows
the existence of the data In other words, the
biometric templates are protected by scrambling and
descrambling keys while they are stored in the
database, or in movement across a network.
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Keywords
Steganography, Biocryptography,
biometric templates, keys, Intruders, hackers.