Key derivation function: Difference between revisions

Revision as of 17:38, 23 November 2007

Revision as of 17:38, 23 November 2007

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:''"KDF" redirects here. For the Nazi 'Strength through Joy' organization, see [[Kraft durch Freude]]''

In [[cryptography]], a '''key derivation function''' (or KDF) is a function which derives one or more [[key (cryptography)|secret key]]s from a secret value and/or other known information such as a [[password]] or [[passphrase]]. Key derivation functions internally often use a [[cryptographic hash function]].