A hashing function that incorporates a randomly generated secret key to provide brute force attack resistance and secret authentication integrity.
Appropriate keyed cryptographic hashing algorithms include but are not limited to: HMAC, CMAC, and GMAC, with an effective cryptographic strength of at least 128-bits (NIST SP 800-131Ar2).
Refer to the following for more information about HMAC, CMAC, and GMAC, respectively: NIST SP 800-107r1, NIST SP 800-38B, and NIST SP 800-38D).
See NIST SP 800-107 (Revision 1): Recommendation for Applications Using Approved Hash Algorithms §5.3.
