Every person has intrinsic physical and behavior features. When we take a grouping of these marks to spot the person to allow him or her to obtain access to a restricted zone it is broadly known as biometrics security system. It is actually derived from two Greek words, Bios meaning life and Metron meaning measure.
The biometric system is more often employed in the software and info technology sector. It is employed as an identity access management technology. This system can also identify a specific individual from the group.
Biometric security is divided into 2 aspects. They are physical and behaviour. Physiological as the term suggests is concerned with the body like fingerprint, DNA, face recognition, iris recognition, hand and palm geometry identification, smell for example. Behavioral is characterized by voice recognition, typing rhythm and so on. Behaviour recognition is a particularly sophisticated mechanism.
The biometric security systems use the human traits on the parameters like uniqueness, universality, permanence, collectability, performance, acceptability and circumvention.
The biometric sytem has to methods. They're verification and identification. First time when a person uses the biometric system is perceived as enrolment. During this enrolment process the biometric samples of the person is collected and stored in the shape of a template in the biometric system's database. When the person uses the system in future the biometric info will be noted and confirmed with the information in the template captured in the time of enrolment. After the corroboration the person is identified and permitted access to the secured zone. Protection of the stored information in the biometric template and also the mechanism of retrieval of biometric info is very vital for the system to function as required. The interface between the real person and the biometric system is the sensor. The sensor acquires all the necessary information to process the access request. The pointless inputs are then filtered off. Then the data is processed to remove the info needed for the safety verification. Then a template with the extracted information is created. Then this template is paired with the stored template in the biometric database. Once the data is matched the person is allowed access to the requested security area.
The analytical measurements used to gauge the performance of the biometric system are false accept rate or false match rate, fake reject rate or fake non-match rate, receiver operating characteristics, crossover mistake rate or equal blunder rate, failure to enroll rate, failure to capture rate and template capacity. We want to have a balance biometric device. It should not have more sensitivity so that the fake reject rate isn't very high and the fake accept rate is not awfully low.
Biometric systems run the risk of the info being compromised. There are possibilities of discrimination. There can also be bad use of the information stored as templates in the biometric system.
Biometric security can be deadly for a person who own the access of the system and the secured items in it. For obtaining access to the secured area or items irrevocable damage to the owner has been made in numerous occasions. There are recorded incidents of fingers of the owners getting chopped by the miscreants to use for fingerprint access to the secured items.
Biometric system is the future of security mechanisms in the times ahead.
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