What are the requirements of a biometric feature used for authentication purposes?
In the development of biometric identification systems, physical and behavioral features for recognition are required which: • are as unique as possible, that is, an identical trait won’t appear in two people: Uniqueness • occur in as many people as possible: Universality • don’t change over time: Permanence • are measurable with simple technical instruments: Measurability • are easy and comfortable to measure: User friendliness