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Key wrapping

Definitions:

  A method of cryptographically protecting keys using a symmetric key that provides both confidentiality and integrity protection.
Sources:
NIST SP 800-152
NIST SP 800-57 Part 1 Rev. 5

  A method of protecting secret keying material (along with associated integrity information) that provides both confidentiality and integrity protection when using symmetric-key algorithms.
Sources:
NIST SP 800-56B Rev. 2

  A method of providing both confidentiality and integrity protection for keying material using a symmetric key,
Sources:
NIST SP 800-57 Part 2 Rev.1

  A method of cryptographically protecting the confidentiality and integrity of keys using a symmetric-key algorithm.
Sources:
NIST SP 800-175B Rev. 1

  A method of encrypting and decrypting keys and (possibly) associated data using symmetric-key cryptography; both confidentiality and integrity protection are provided; see SP 800-38F.
Sources:
NIST SP 800-133 Rev. 2