Page 86 - DCAP309_INFORMATION_SECURITY_AND_PRIVACY

Information Security and Privacy

Notes concerned in the organizations, need to come to an agreement that biometrics should be deployed
for the protection of organizational assets. Also consider the social sigma factor mentioned as
well as the lack of awareness; fingerprinting is a chiefly sensitive topic, given that it is linked
with criminals. Eye retina scanning requires users to trust that the system will not harm their
eyes, a feeling they carry perhaps owing to rumors and insufficient information concerning
how the retinal scanning technology functions.

6.5.4 Uniqueness of Biometrics Organ and Action

The intention of biometrics system is positive identification of the personnel- specified this, it is
significant that the systems are based on unique traits of the employees. So when the base is
exclusive trait, a file match is a positive identification instead of a statement of high probability
that it is the right person. Out of the many physical traits that can be used, only three can actually
be considered unique enough for recognition: the fingerprint, the retina of the eye and the iris
of the eye.

6.5.5 Reliability of Biometrics

When using biometrics verification systems, it is significant that they function in an accurate
fashion. The notion of system’s reliability is connected to its ‘selectivity’. Reliability is a prospect
that a matcher system will properly identify the mate when the mate is present in the system
repository, while selectivity is the number of incorrect mates determined for a specified search.
Only authorized persons must be permissible to access and it must prevent the others without
breakdown in performance correctness or speed.

Did u know? The tradeoff between reliability and selectivity provides the greatest system
design challenge as these parameters are interdependent.
6.5.6 Data Storage Requirements in Biometrics System

Earlier computer systems had primary and secondary memory size constraints, that are restricted
RAM and disk size. This is less of an concern today as computer technology has advanced in both
hardware and software. Even then, the size of biometrics data files is still a factor of interest.
Provided the large size of biometrics match templates, even with the current ultra-high speed
processors, large data files take longer than small files to process. This is particularly so in
biometrics systems that performs full identification. Typically, biometrics file size varies between
9 and 10,000 bytes, mostly falling in the 256-1,000 byte range.

6.5.7 Enrolment Time in Biometrics

We have discussed ‘matching and enrolment’; enrolment time is also so much of a concern these
days. In the previous days, biometrics system sometimes had enrolment process requiring
many repetitions and numerous minutes to completes.

6.5.8 Ata Collection Intrusiveness

Origins of this factor come from the user’s apprehension regarding the collection of biometrics
data from inside the human body- particularly the retina inside the eyeball. Early biometrics
systems enlightened the retina with a red light beam that happened to coincide with increasing

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