Hash Function Attacks Quiz

Test your knowledge on different types of attacks on hash functions including brute-force attacks and cryptanalysis. Learn how attacks on hash functions do not depend on the specific algorithm, only on the bit length of the hash value.

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@LegendaryZombie

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Questions and Answers

What type of attack does not depend on the specific algorithm?

Brute-Force Attacks

In the case of a hash function, what does an attack depend on?

Bit length of the hash value

Which attack seeks to exploit some property of the algorithm other than an exhaustive search?

Cryptanalysis

What does a collision resistant attack aim to find?

Two messages or data blocks that yield the same hash value Signup and view all the answers

What strategy exploits the birthday paradox in a collision resistant attack?

Generating variations of a legitimate message Signup and view all the answers

What is the primary goal of an opponent in a collision resistant attack?

To find two messages conveying the same meaning Signup and view all the answers

What is the principal object of a hash function?

Data integrity Signup and view all the answers

Which property makes it computationally infeasible to find a data object that maps to a pre-specified hash result?

Preimage resistance Signup and view all the answers

What property of a cryptographic hash function ensures that it is difficult to find two different data objects that map to the same hash result?

Collision resistance Signup and view all the answers

In the context of message authentication, what does MAC stand for?

Message Authentication Code Signup and view all the answers

Which type of attack aims to find two different inputs with the same hash output?

Collision attack Signup and view all the answers

What is the purpose of storing hash values for each file on a system?

To detect intrusions and viruses Signup and view all the answers

What does a collision in hash functions refer to?

Similar preimages for different hash values Signup and view all the answers

Why are collisions considered undesirable in hash functions for data integrity?

Because they hinder the uniqueness of hash values Signup and view all the answers

What does it mean for a function to be preimage resistant?

It is difficult to find the input that generates a specific hash value Signup and view all the answers

In what scenario would an intruder need to modify a file without changing its hash value?

To maintain data integrity after an attack Signup and view all the answers

Why is the fixed output size of a cryptographic hash function important?

To ensure one-to-one mapping between inputs and outputs Signup and view all the answers

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