5.8: Biometric (Doshi)

Question 1

What is biometric?

Answer 1

Biometrics refers to metrics related to a human characteristic

Question 2

Biometric verification

Answer 2

Any means by which a person can be uniquely identified by evaluating one or more distinguishing biological features.

Question 3

Unique identifiers of biometric

Answer 3

palm, hand geometry, fingerprints, retina and iris patterns, voice waves and DNA

Question 4

What is false ACCEPTANCE with biometric

Answer 4

A rate of acceptance of unauthorized person i.e. biometric will allow a unauthorzied person to access the system.

Question 5

Example of a false acceptance:

Answer 5

Mr. A is the only authorized person to access the system. However, if biometric allows access to Mr. B, then the same is false acceptance

Question 6

What is false REJECTION with biometric?

Answer 6

A rate of rejection of authorized person(s) i.e. biometric will reject even though the person is authorized to access the system.

Question 7

Example of false rejection:

Answer 7

Mr. A is the only authorized person to access the system. However, if biometric DOES NOT allow access to Mr. A, then the same is false REJECTION

Question 8

Cross Error Rate (CER) or Equal Error Rate (ERR):

Answer 8

It’s a rate at which FAR and FRR are equal.

Question 9

Characteristic of the MOST effective biometric system

Answer 9

It will have the lowest CER or ERR

Question 10

Characteristic of the MOST ineffective biometric system

Answer 10

It will have the highest CER or ERR.

Question 11

What is a Replay attack?

Answer 11

A biometric attack in which a residual biometric characteristic such as fingerprint left on a device is used by an attacker to gain unauthorized access.

Question 12

Brute force attack:

Answer 12

Involves sending the numerous different biometric samples to a biometric device

Question 13

Cryptographic attach:

Answer 13

Targets the algorithm or the encrypted data transmitted between the biometric device and access control system.

Question 14

What happens when Fale Acceptance Rate Decreases

Answer 14

False Rejection Rate Increases and vise- versa

Question 15

The MOST important PERFORMANCE indicator for biometric system:

Answer 15

False acceptance rate (FAR

Question 16

The most important OVERALL quantitative performance indicator for biometric system

Answer 16

Cross error rate CER or Equal error rate EER

Question 17

Which biometric method has the highest relibility and lowest FAR?

Answer 17

Retina Scan

Question 18

BEST performance indicator of biometrics

Answer 18

False Acceptance Rate FAR

Question 19

OVERALL BEST performance indicator of biometrics

Answer 19

Cross Error Rate CER or Equal Error Rate EER

Question 20

Mimic Attack?

Answer 20

attacker attempts to fake the biometric characteristics

Question 21

What are the 4 attacks on biometrics?

Answer 21

Mimic
Brute Force
Crypto
Replay

Question 22

In any given scenario, which biometric technology has the highest reliability and lowest false acceptance rate FAR?

Answer 22

Retina Scan

Question 23

The three MAIN accuracy measures for biometric technologies are:

Answer 23

(1) False Acceptance Rate (FAR)
(2) False Rejection Rate (FRR)
(3) Cross Error Rate (CER) or Equal Error Rate (EER)

Question 24

Data transfer of biometric data should be

Answer 24

encrypted

Question 25

Biometric life cycle is:

Answer 25

(1) enrollment
(2) transmission and storage
(3) verification
(4) identification
(5) termination of processes

Question 26

Biometric controls are more reliable than

Answer 26

forms of Access Control