What is a biometric key?
A biometric key is a set of information about an individual’s specific physical feature. A good biometric key must be unique in each individual. Good biometric keys are, for instance: <!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --> Unlike "traditional keys" (ex. a padlock key or a password to access into PC ,...) that are used to identify persons, a biometric key can not be transferred. (ex. by lending or borrowing it to a friend).