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key encryption key (KEK)

Abbreviation(s) and Synonym(s):

KEK

Definition(s):

  A key that encrypts other key (typically traffic encryption keys (TEKs)) for transmission or storage.
Source(s):
CNSSI 4009-2015 from CNSSI 4005

  A key derived from the authorization key that is used to encrypt traffic encryption keys (TEK) during the TEK exchange.
Source(s):
NIST SP 800-127 [Withdrawn] under Key encryption key (KEK)

  A cryptographic key that is used for the encryption or decryption of other keys.
Source(s):
NIST SP 800-57 Part 2 [Superseded] under Key encrypting key