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Key-derivation function

Abbreviation(s) and Synonym(s):

KDF

Definition(s):

  A function by which keying material is derived from a shared secret (or a key) and other information.
Source(s):
NIST SP 800-56A Rev. 2

  A function used to derive keying material from a shared secret (or a key) and other information.
Source(s):
NIST SP 800-56B Rev. 1

  A function that, with the input of a cryptographic key or shared secret, and possibly other data, generates a binary string, called keying material.
Source(s):
NIST SP 800-57 Part 1 Rev. 3 [Superseded]
NIST SP 800-57 Part 1 Rev. 4

  Key Derivation Function.
Source(s):
NIST SP 800-108 under KDF