What are key derivation functions?
Key derivation functions (KDFs) are algorithms used to derive one or more secret keys from a secret value, like a password.
Why are KDFs important in cryptography?
KDFs enhance security by transforming weak keys into strong keys, making it harder for attackers to guess or brute-force.
Can you give an example of a key derivation function?
Sure! PBKDF2, bcrypt, and Argon2 are popular examples of key derivation functions.
How do KDFs protect against attacks?
KDFs protect against attacks by adding computational cost, making it time-consuming for attackers to try many passwords.
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