Authentication

Question 1

What is DIKW?

Answer 1

Data Information Knowledge Wisdom

Question 2

Name 4 ways of Judging an Authentication Mechanism (Security)

Answer 2

• Memorability
• Guessability
• Observability
• Recordability

Question 3

List 3 Physiological Biometrics

Answer 3

face, hand, fingerprints, iris, DNA, retina, ears

Question 4

List 3 Behavioural Biometrics

Answer 4

keystroke, signature, voice

Question 5

What are the problems with

fingerprints

Answer 5

Finger Placement
• Dirt, grime, wounds, age, missing fingers
• Spoof!

Question 6

What are the problems with Hands

Answer 6

• Very large scanners
• Arthritis
• Jewellery
• Growing children

Question 7

What are the problems with iris /retina

Answer 7

Contact lenses an issue?
• Intrusive
• Expense

Question 8

What are the problems with face

Answer 8

• Expression
• Spoof
• Tougher Usability

Question 9

What are the problems with DNA

Answer 9

Twins?

Question 10

What are the problems with voice

Answer 10

• Local acoustics
• Background noise
• Device quality
• Illness, emotional behavior
• Time consuming enrollment
• Large processing template
• Spoof

Question 11

What Traits make something

suitable as a biometric?

Answer 11

• Universality
• Uniqueness
• Permanence
• Measurability
• Performance
• Acceptability
• Circumvention

Question 12

What is Two Factor Authentication

Answer 12

• Not 2 passwords!

* 2 different types

Question 13

How is Memory Assessed

Answer 13

• Recall Based
• Cued-Recall Based
• Recognition Based

Question 14

factors in Judging an Authentication Mechanism (User Experience)

Answer 14

• Ease	of	Use
• Convenience
– To	Enrol
– To	Authenticate
– To	Replace