Abstract: Disclosed is a method of deriving a biometric identification number and an extended biometric identification number. The biometric identification number is derived based on a plurality of different fingerprint images of a same finger time. The resulting biometric identification number represents those features within the finger tip that are determined to be most stable. Values are determined based on each feature in accordance with characteristics that are determinable in a stable fashion. The resulting biometric identification number is representative of the fingerprint. In order to extend the biometric identification number, further personal data relating to a same individual as the finger tip is encoded within the extended biometric identification number.

Abstract: Disclosed is a method of indexing a first database of records. A fingerprint is received and a biometric identification number is determined based thereon. A database is formed and is indexed based on the biometric identification number. As such, absent knowledge of the actual index value, the index is reconstructable based on a provided fingerprint data.