ITN 262 Chapter 6 Test Questions and Answers All Correct
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Course
ITN 262
Institution
ITN 262
ITN 262 Chapter 6 Test Questions and Answers All Correct
Hash functions play such a fundamental cybersecurity role that the US government has published a series of standards for them. These are called the? - Answer- Secure Hash Algorithms (SHA)
The Secure Hash Algorithms are published in the...
ITN 262 Chapter 6 Test Questions
and Answers All Correct
Hash functions play such a fundamental cybersecurity role that the US government has
published a series of standards for them. These are called the? - Answer- Secure Hash
Algorithms (SHA)
The Secure Hash Algorithms are published in the? - Answer- Federal Information
Processing Standards 180 series.
Can detect minor changes in enormous blocks of data, like programs downloaded from
the internet. - Answer- one way hash
The most powerful modern attack on passwords is the _____ attack, which attacks
hashed passwords. We also call this password cracking. - Answer- Offline attack
Our first step in measuring the strength of our password system is to count the total
number of possible passwords. We call this the? - Answer- Search Space
The search space provides the ______ _______ for the number of guesses required in
a trial-and-error attack. - Answer- upper bound
To increase the search space we have two options, they are? - Answer- Increase the
length - L
Increase the range of letters and other characters in the password's alphabet -A
When we measure the uncertainty in the value of a data item, we measure its
________. - Answer- entropy
_______ in data indicates the likelihood that a particular message may appear.
- it considers the range of possible messages and the likelihood of each one. - Answer-
Entropy
When people are ____ in their password selection, they choose passwords from only
part of the total possible search space. - Answer- bias
Three types of tokens are? - Answer- Passive Tokens
Challenge-response Tokens
, One-time password Tokens
transmits the same credential every time. these are a physical substitute for a
password. The base secret they carry usually is impractical for users to memorize. -
Answer- Passive Tokens
Transmits credentials that vary according to an unpredictable "Challenge" from the
computer - Answer- Challenge-response tokens
Transmits different credentials based on an internal clock or counter - Answer- one-time
password tokens
Challenge and One-time password tokens are also called? - Answer- active tokens
they produce a different credential every time we use them. - Answer- active token
credit cards and ATM cards are examples of what kind of token? - Answer- passive
token
The fraction of readings that should match an existing credential template but do not
match it. - Answer- False rejection rate (FRR)
The fraction of readings that match an existing credential template but should not match
it. - Answer- False acceptance rate (FAR)
is an application that stores and protects a collection of passwords. Effective ones will
automatically fill in passwords, allowing users to choose different, random passwords
for each password-protected system.
ex Apples 'keychain' - Answer- password manager
Secret information associated with an individual and used to authenticate that individual.
- Answer- base secret
The number of trial-and-error attempts required to achieve a 50% probability of a correct
guess. - Answer- average attack space
Memorized information, a possession, or a biometric. - Answer- authentication factors
A database that associates user identities with patterns or other information to confirm
the users. - Answer- authentication database
An authentication device that produces a different credential each time it is used. -
Answer- active token
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