Cryptographic Hash Functions and Keyed Hashing Quiz

Test your knowledge on hash functions and keyed hashing in the field of applied cryptography. Explore topics such as constructing MACs, key derivation, password protection, and proofs of work. Learn about the applications of hash functions in authentication, randomness extraction, and more.

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Questions and Answers

What is the purpose of a hash function?

The purpose of a hash function is to take an input (or message) and produce a fixed-size output (or hash value) that is unique to that input.

What are some common applications of hash functions?

Some common applications of hash functions include key derivation, digest for authentication, randomness extraction, password protection, and proofs of work.

What is the output size of a typical cryptographic hash function?

The output size of a typical cryptographic hash function is usually 256 or 512 bits.

What are some non-cryptographic applications of hash functions?

<p>Some non-cryptographic applications of hash functions include indexing in version management, deduplication in cloud storage systems, and file integrity in intrusion detection.</p> Signup and view all the answers

What is the purpose of a MAC (Message Authentication Code)?

<p>The purpose of a MAC is to provide integrity and authenticity of a message by using a secret key to generate a tag (or MAC value) that can be verified by the recipient.</p> Signup and view all the answers