mardi 25 novembre 2008

Biometric devices


What are they?
Biometric devices are tools of authentication or identification of a person based on his physiological and physical traits. Biometric technology allows to recognize many personal traits such as fingerprints recognition, facial structure, iris configuration, retinal configuration, voice tone, hand geometry, or again blood pressure through the analyse of the vein on the back of the hands.
Biometrics devices recognize unique characteristics to each individual and work as a security system, for which the individual himself is the key, to verify the identity of the user.

How do they work?
Before using biometric devices, a process called “enrollement ” is required to make it effective. Enrollement is the phase of registration of people characteristics in a biometric database. Theses data are then converted into mathematical model called “templates” and stored in the memory. As a person uses the scan feature of the biometric device, his characteristics are compared with the templates stored in the memory. If the person’s characteristics match up with one of the templates stored in the memory, access will be authorized.

What is Fingerprints recognition?
Fingerprints recognition is the biometric technology the most commonly used and familiar to people. It is an analyse of an individual fingerprints through which the precise data of their global pattern are collected and stored. Fingerprints patterns, which are very complex and detailed, considerably vary from a person to another. Moreover, fingerprints patterns never modify over the time. As a result, identification through fingerprints recognition is considered as one of the most reliable and accurate biometric technology.

References:
  • www.assaabloyfuturelab.com
  • www.globalsecurity.org/security/systems/biometrics-fingerprint.htm
  • www.globalsecurity.org/security/systems/biometrics.htm
  • www.webopedia.com/TERM/B/biometrics.html
  • www.fdic.gov/consumers/consumer/idtheftstudy/technology.html#part8