Physiological identifiers relate to the composition of the user being authenticated and include the following: The two main types of biometric identifiers are either physiological characteristics or behavioral characteristics. a database to securely store biometric data for comparison.īiometric data may be held in a centralized database, although modern biometric implementations often depend instead on gathering biometric data locally and then cryptographically hashing it so that authentication or identification can be accomplished without direct access to the biometric data itself.software to convert the scanned biometric data into a standardized digital format and to compare match points of the observed data with stored data and.a reader or scanning device to record the biometric factor being authenticated. Some biometric methods, such as measuring a person's gait, can operate with no direct contact with the person being authenticated.Ĭomponents of biometric devices include the following: In addition to security, the driving force behind biometric verification has been convenience, as there are no passwords to remember or security tokens to carry. How do biometrics work?Īuthentication by biometric verification is becoming increasingly common in corporate and public security systems, consumer electronics and point-of-sale applications. The term biometrics is derived from the Greek words bio, meaning life, and metric, meaning to measure. The basic premise of biometric authentication is that every person can be accurately identified by intrinsic physical or behavioral traits. The technology is mainly used for identification and access control or for identifying individuals who are under surveillance. Gillis, Technical Writer and Editorīiometrics is the measurement and statistical analysis of people's unique physical and behavioral characteristics.
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