How do biometric devices work?
• Biometric devices compare a properly enrolled sample with a live sample and attempt to make a match. • What is the enrollment process? • There are three steps to enrollment: • The biometric (e.g. fingerprint) being used is captured by a sensing mechanism (a scanner or the like). • The unique characteristics of the biometric are converted and encrypted into an identifier record. • The record is stored on a token (kept in the possession of the user) for later use in comparing the enrolled record to the live biometric. • If I cut my enrolled finger, can I still use the system? • A severely cut or damaged finger can render a reading invalid. We recommend enrolling more than one finger as a backup in case your usual finger is injured. • What is the advantage of using a chip card versus an optical card? • A chip card can store more information than the 2D barcode symbolplus, it allows the writing of transactional data to the chip. The data can be downloaded at any time to a central locatio
