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Key-derivation key

Abbreviations / Acronyms / Synonyms:

Master key

Definitions:

  A key used as an input to a key derivation function to derive other keys.
Sources:
NIST SP 800-107 Rev. 1 under Key Derivation Key

  A key that is used as an input to a key derivation function or key expansion function to derive other keys.
Sources:
NIST SP 800-135 Rev. 1 under Key derivation key

  See Key-derivation key.
Sources:
NIST SP 800-57 Part 1 Rev. 5 under Master key

  A key used with a key-derivation method to derive additional keys. Sometimes called a master key.
Sources:
NIST SP 800-57 Part 1 Rev. 5

  A key used as an input to a key-derivation method to derive other keys; see SP 800-108.
Sources:
NIST SP 800-133 Rev. 2

  A key used as an input to a key-derivation function to derive additional keying material.
Sources:
NIST SP 800-108r1 [August 2022 (Includes updates as of 02-02-2024)] under key-derivation key

  As used in this Recommendation, a key that is used during the key-expansion step of a key-derivation procedure to derive the secret output keying material. This key-derivation key is obtained from a shared secret during the randomness-extraction step.
Sources:
NIST SP 800-56C Rev. 2