Types, Usage and Modes of Biometric Security Systems

Older security system was based on small integrated chips containing the data of the particular person. The authentication is based on the information contained in the chip, but any person can carry it. In later days, in order to increase the security, biometric concept was introduced. Biometric is the method of security where human iris, fingerprint or DNA is used as criteria for authentication of the individual.

Types of biometric system:

Physiological: Examples are: fingerprint, DNA, iris, hand or palm geometry, etc.

Behavioral: Typing rhythm, voice, gait, etc.

General modes of operation:

Verification: This is a method of comparison in which an individual is identified by the system with comparing the current input and an existing database.

Identification: In this the comparison is in the form of one to many, where any new user comes into the system, the database in updated with the required information.

Types of biometric popularly used:

· Fingerprints
· hand geometry
· retina
· iris
· face
· signature
· Voice


IT Industry:

The main usage of biometric in IT industry is to identify the professionals entering and exiting the company at any time. IT industry is a large organization where many users to traverse the compounds. Due to the presence of terrorist activities across the world it is a very important to record the movements of individual inside the company premises and authentication of the particular company individual.

Schemes for public:

The government when providing some schemes for the people would like to keep track of the individuals who have received it, which is done by using biometrics like fingerprint.

Ticketing system:

Frequent travel users in train or bus can be given a privilege by giving discounts. In order to ensure that only those individuals are enjoying the privileges, biometrics can be used. In U.S. this system has been implemented.

Biometric has a greater advantage than ID cards since it directly authenticates the user than verifying the data on the printed card.

It is easy to make a duplicate card, if the information of the individual is available, but in biometric it's not possible to duplicate a persons fingerprint or iris. Hence it is difficult to foolproof a biometric authentication.