Biometric Authentication Methods

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Questions and Answers

What happens when a biometric recognition device fails to identify a fingerprint?

The device automatically switches to a different authentication method
A second attempt is made with the same finger
The user is denied access (correct)
Another finger is used as an alternative

What is the primary advantage of biometric authentication over passwords?

Biometric authentication is more convenient than passwords.
Biometric authentication eliminates the need for password management.
Biometric authentication is more difficult to forge than passwords. (correct)
Biometric authentication is more cost-effective than passwords.

Which of the following biometric authentication technologies is NOT mentioned in the text?

Facial features
DNA structure (correct)
Hand geometry
Fingerprint

What is a common issue with biometric authentication?

Variation reduces accuracy (C) Signup and view all the answers

What is a potential issue with using biometric authentication in certain cultures?

Some people may find it intrusive. (A) Signup and view all the answers

What is an example of a token in authentication?

A credit card with a magnetic stripe (D) Signup and view all the answers

What is a potential drawback of using biometric recognition devices in a large company?

Biometric devices may be too expensive to implement. (D) Signup and view all the answers

What is a false positive in authentication?

A reading that is accepted when it should be rejected (A) Signup and view all the answers

What is the term for when a biometric authentication system incorrectly identifies an authorized user?

False rejection (C) Signup and view all the answers

What is the purpose of sampling in biometric recognition devices?

To compare a set of measurements with a template (D) Signup and view all the answers

What is the term for when a biometric authentication system incorrectly identifies an unauthorized user?

False acceptance (D) Signup and view all the answers

Why do manual laborers often have issues with fingerprint recognition?

They can rub off their fingerprints over time (B) Signup and view all the answers

What is a consequence of reducing false positive rates in authentication?

Increasing false negatives (A) Signup and view all the answers

What is a potential issue with biometric authentication systems?

They can be a single point of failure. (B) Signup and view all the answers

What is the concept of authentication based on?

Something you have (A) Signup and view all the answers

What is a characteristic of biometric authentication that makes it difficult to forge?

It is difficult to reproduce. (D) Signup and view all the answers

What is the primary goal of computer security?

To prevent unauthorized access to a system (A) Signup and view all the answers

What is the difference between identification and authentication?

Identification is the act of asserting who a person is, while authentication is the act of confirming it (B) Signup and view all the answers

What is an example of something a user knows for authentication?

Password (A) Signup and view all the answers

What is biometric authentication based on?

A physical characteristic of the user (A) Signup and view all the answers

What is the purpose of authentication mechanisms?

To confirm a user's identity (B) Signup and view all the answers

What is the primary difference between identification and authentication?

Identification is the act of asserting who a person is, while authentication is the act of confirming it (D) Signup and view all the answers

What type of authentication is based on a physical characteristic of the user?

Biometric authentication (B) Signup and view all the answers

What is the primary goal of authentication?

To confirm a user's identity (C) Signup and view all the answers

Study Notes

Authentication Basics

Authentication is divided into three categories: something you know, something you have, and something you are.
Identification is the act of asserting who a person is, while authentication is the act of proving that asserted identity.

Biometric Authentication

Biometric authentication uses biological properties, such as fingerprints, hand geometry, retina and iris scans, voice recognition, and facial features.
Advantages of biometric authentication include:
- Cannot be lost, stolen, forgotten, or shared.
- Always available.
- Difficult to forge.
Biometric authentication involves matching a template closely enough, with "close" being a system parameter that can be tuned.

Problems with Biometric Authentication

Biometric recognition devices are costly, although costs are decreasing.
Biometric use can be intrusive and culturally sensitive.
Manual laborers may wear off their fingerprints over time, affecting recognition.
Biometric readers can be a single point of failure.
Variation in biometric readings reduces accuracy, leading to false positives and false negatives.

Token-Based Authentication

Token-based authentication involves using a physical object in your possession, such as a key, badge, or identity card.
Tokens can also have data to communicate invisibly, such as credit cards with magnetic stripes or embedded computer chips.
Examples of token-based authentication include credit cards and access cards with passive or active wireless technology.

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Description

This quiz covers various biometric authentication technologies, including fingerprint, hand geometry, retina, and other biological properties. Learn about the different types of biometric authentication methods.