24 Questions
What happens when a biometric recognition device fails to identify a fingerprint?
The user is denied access
What is the primary advantage of biometric authentication over passwords?
Biometric authentication is more difficult to forge than passwords.
Which of the following biometric authentication technologies is NOT mentioned in the text?
DNA structure
What is a common issue with biometric authentication?
Variation reduces accuracy
What is a potential issue with using biometric authentication in certain cultures?
Some people may find it intrusive.
What is an example of a token in authentication?
A credit card with a magnetic stripe
What is a potential drawback of using biometric recognition devices in a large company?
Biometric devices may be too expensive to implement.
What is a false positive in authentication?
A reading that is accepted when it should be rejected
What is the term for when a biometric authentication system incorrectly identifies an authorized user?
False rejection
What is the purpose of sampling in biometric recognition devices?
To compare a set of measurements with a template
What is the term for when a biometric authentication system incorrectly identifies an unauthorized user?
False acceptance
Why do manual laborers often have issues with fingerprint recognition?
They can rub off their fingerprints over time
What is a consequence of reducing false positive rates in authentication?
Increasing false negatives
What is a potential issue with biometric authentication systems?
They can be a single point of failure.
What is the concept of authentication based on?
Something you have
What is a characteristic of biometric authentication that makes it difficult to forge?
It is difficult to reproduce.
What is the primary goal of computer security?
To prevent unauthorized access to a system
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
What is an example of something a user knows for authentication?
Password
What is biometric authentication based on?
A physical characteristic of the user
What is the purpose of authentication mechanisms?
To confirm a user's identity
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
What type of authentication is based on a physical characteristic of the user?
Biometric authentication
What is the primary goal of authentication?
To confirm a user's identity
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.
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.
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