Biometric in networ security

Nowadays biometrics is becoming a principal method of identification and verification in a networked society. Biometric readers, scanners and/or other biometric techniques are being implemented and used by numerous organizations without undergoing prior quality assessment. In both theory and practice, two main types of biometric features exist: one type refers to features requiring direct physical contact with a biometric scanner (e.g. the fingerprint, iris pattern etc.), whereas the other refers to those not necessarily requiring any physical contact with the scanner (e.g. facial shape, voice etc.). In order to implement absolute security within an information system by using biometric features, it is necessary to combine several different biometric traits, either those belonging to one type only or those already presenting a combination of both types mentioned. For such a security system to be developed it is essential to define basic recommendations. It is the objective of this paper to describe such basic recommendations and provide an example of combining biometric features in the process of development of a secure information system.