Biometric+Authentication

=Biometric authentication=

Biometric authentication uses physical features, (e.g. fingerprints, retinas, irises), behavioral characteristics (e.g. signature, gait) and the mix of both physical and behavioral characteristics (e.g. voice). There is growing interest in biometric authentication, because the identity theft of physical characteristics is much more difficult than that of personal identification number (PIN) and password. However, since high-speed computation system and larger database are required, biometric authentication systems are more expensive than those using PIN and password. Initially those systems were employed for the places that need highly sophisticated security systems, such as national defence agencies and research institutes; however, large-scale implement of these technologies is becoming common (e.g. iris pattern recognition systems at London Heathrow airport and Amsterdam Schiphol airport). Today authentications system using fingerprint and iris pattern are most studied, and there are some products with almost perfect accuracy under the certain condition.