How does the manner of formation influence the usefulness of biometric features for authentication?
Even though the type of developmental factor does not solely determine a feature’s usefulness, there are a few things to take into account: • pure genotypic traits can’t differentiate between monozygotic (identical) twins or clones • purely behavioral features are, by definition, easiest to imitate • behavioral features are strongly affected by external influences and the disposition of the user • normally for authentication purposes, randotypic contributions are essential due to their necessity for creating absolute uniqueness
