Access control devices-cryptography, Computer Network Security

ACCESS CONTROL DEVICES

Successful access control system includes number of components, which depends on system’s requirements for authentication and authorization. Powerful authentication requires at least 2 forms of authentication to authenticate the supplicant’s identity. The skill to manage authentication based on what a supplicant knows is extensively integrated into the networking and security software systems in use across IT industry.

 Authentication


Authentication is validation of a supplicant’s identity. There are four basic ways to carry out authentication. They are given as follows:
a)What a supplicant knows
b) What a supplicant has
c)Who a supplicant is
d) What a supplicant produces

Biometrics
The area of authentication deals with the characteristic supplicant’s person. This process of using body measurements is called as bio-metrics.

Biometrics includes the following:

•Fingerprint – Comparison is made of supplicant’s actual fingerprint to a stored fingerprint.
•Palm print – Comparison is made of supplicant’s actual palm print to a stored palm print.
•Hand Geometry – Comparison is made of supplicant’s actual hand to a stored measurement.
•Facial recognition by using a photographic ID card – a human security guard properly compares supplicant’s face to a photo.
•Facial recognition by using a digital camera – a supplicant’s face is compared properly  to a stored image.
•Retinal print – Comparison is made of supplicant’s actual retina to a stored image.
•Iris pattern – Comparison is made of supplicant’s actual iris to a stored image.

The following are the only 3 human characteristics are considered truly unique. They are stated below:
1) Fingerprints.
2)Retina of the eye.
3)Iris of the eye.


 Effectiveness of Biometrics


Biometric technologies are evaluated based on following 3 basic criteria:
- False reject rate
- False accept rate
- Crossover error rate (CER)


 Acceptability of Biometrics

Acceptability of Biometrics depends on balance that should be struck between how acceptable security system is to users and the effectiveness of it in maintaining security. Many biometric systems which are highly reliable and effective are considered intrusive. As a result of this, many information security professionals, in an effort to stay away from confrontation and possible user boycott of biometric controls, which do not implement them. Table given below illustrates the ranking of Effectiveness and Acceptance.

 

1340_Access control devices-cryptography.png

Posted Date: 10/9/2012 2:46:38 AM | Location : United States







Related Discussions:- Access control devices-cryptography, Assignment Help, Ask Question on Access control devices-cryptography, Get Answer, Expert's Help, Access control devices-cryptography Discussions

Write discussion on Access control devices-cryptography
Your posts are moderated
Related Questions
FRAGMENT IDENTIFICATION: IDENT field in every fragment matches IDENT field in real datagram. Fragments from different datagrams may arrive out of order and still be saved out.

Write down the significance of the syntax conversion . Syntax Conversion is described below: Syntax conversion is a significant function carried out in the presentation layer. I

TOKEN RING Many LAN methods that are ring topology need token passing for synchronized access to the ring. The ring itself is acts as a single shared communication phase. Both

how to access tomcat by internet

Question: a) Give two reasons why the building-block approach is favoured to the traditional network design approach. b) With reference to network monitoring parameters, dis

what is guided media or unguided media

Write Pseudocode for the password guessing algorithm: Consider the following authentication protocol: Client Transmission Host

You are an IT Security administrator in a banking organization. Your organization hired an outside IT firm to do a proof of Concept for new equipment which is a computer based syst

Describe the important features of application layer. The features of the application layer are as follows. 1. Efficient User Interface Design is explained below: Appli

STAR TOPOLOGY In this topology, all devices are attached to a central point, which is sometimes known as the "Hub" as given in the diagram below.   Figure: An ideal