None
The binary data that is used to form secret keys, such as AES encryption or HMAC keys.
Source(s):
NIST SP 800-107 Rev. 1
The binary data that is used to form secret keys, such as AES encryption keys or HMAC keys.
Source(s):
NIST SP 800-135 Rev. 1
As used in this Recommendation, the secret keying material that is either (1) derived by applying the key-derivation method to the shared secret and other shared information during a key-agreement transaction, or (2) is transported during a key-transport transaction.
Source(s):
NIST SP 800-56B Rev. 1
under Secret keying material (that is shared)
[Superseded]