ict security measures
TRANSCRIPT
NameName Ahmad Syamil B. HassanAhmad Syamil B. Hassan
IC. NoIC. No 910913-02-5011910913-02-5011
•Authentication
•Methods of Authentication
•Biometric Devices
AuthenticationAuthentication
• Is the process where users verifies that they are who they Is the process where users verifies that they are who they say they are. say they are.
• The user who attempts to perform functions in a system is The user who attempts to perform functions in a system is in fact the user who is authorised to do so. in fact the user who is authorised to do so.
Identification
- Present what the user has.
AuthenticationAuthentication
Authentication
- Authenticate who the user is.
AccessDenied
AccessGranted
Verification
- Verify the validity of the ID
Identification
Methods of AuthenticationsMethods of Authentications
• There are two commonly used authentication methods. They are biometric devices and callback system
• It is a device that translates personal characteristic into a digital code that is compared with a digital code stored in the database
• Examples of biometric device is fingerprint recognition, facial recognition, hand geometry, iris scanning, retinal scanning, voice recognition and signature verification system.
Fingerprint Recognition• It also measure blood flow, or check for correctly arrayed
ridges at the edges of the fingers
Facial Recognition• Analyses the characteristics of an individual’s face images
captured through a digital video camera.
Hand Geometry Scanning• Involves the measurement and analysis of the shape of one’s
hand.
Iris Scanning• Analyses the features that exists in the coloured tissues
surrounding the pupil which has more than 200 points that can be used for comparison including rings and freckles.
• The scans use a regular video camera and can be done from further away than a retinal scan.
Retinal Scanning• Involves the scanning of retina and analysing the layer of blood vessels at
the back of the eye• Involves using the low intensity of light source and optical coupler and can
read the patterns at a great level of accuracy.• The accuracy is very good and the cost is fair.• Requires the user to remove glasses and place their eye close to the
device.
Voice Recognition• Compares a person’s live speech with their stored voice patterns.• Requires user to speak into a microphone.• What he speaks can be his password or access phrase.• Verification time is approximately 5 seconds. To prevent recorded voice
use, most recognition devices require the high and low frequencies of the sound to match.
Signature Verification System• Recognises the shape of your hand written signature as well
as measuring the pressure exerted and the motion used to write the signature.
• Uses special pen and a special tablet. • After pre-processing the signature, several features
extracted.• The authenticity of a writer is determined by comparing an
input signature to a stored reference set consisting of three signatures.
• The accuracy is fair and the cost involved is excellent
ConclusionConclusion
Authentication is very important to prevent Authentication is very important to prevent unauthorised access of a person’s data.unauthorised access of a person’s data.
ReferencesReferences ICT Form 4 Note bookICT Form 4 Note book