Cryptographic Hash Functions and Keyed Hashing Quiz

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.

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

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

<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

<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