BaselineWatch
Desk
Your fleet and your work Fleetyour releases and the hardware they run onTriagewhat needs a decisionWatchlistthe products and platforms you runSaved searchesthe lists you come back to
This instance Sourceswhat is read, how often, under what termsDigestthe daily or weekly summary, and alerts
How it is drawn Appearancethe look and the colour schemeBrandingthe mark this instance wears
Owner sign-in

4.2.3.2 MACs Using Hash Functions

NIST platform security: roots of trust, firmware and secure enclaves SP 800-57 Part 1 Rev. 5 against SP 800-57 Part 1 Rev. 4
All changes in this version
removed 4 Cryptographic Algorithms part of 4.2.3

Title changed

Before · SP 800-57 Part 1 Rev. 4

MACs Using Hash Functions

After · SP 800-57 Part 1 Rev. 5

MACs Using Hash Functions

Control changed

Before · SP 800-57 Part 1 Rev. 4

[FIPS198] specifies the computation of a MAC using an approved hash function. A variety of key sizes are allowed for HMAC, which is the MAC algorithm specified in [FIPS198]; the choice of key size depends on the amount of security to be provided to the data and the hash function used. See [SP800-107] for further discussions about HMAC, and Section 5.6 of this Recommendation (i.e., SP 800-57, Part 1) for further discussion.

After · SP 800-57 Part 1 Rev. 5

[FIPS198] specifies the computation of a MAC using an approved hash function. A variety of key sizes are allowed for HMAC, which is the MAC algorithm specified in [FIPS198]; the choice of key size depends on the amount of security to be provided to the data and the hash function used. See [SP800-107] for further discussions about HMAC, and Section 5.6 of this Recommendation (i.e., SP 800-57, Part 1) for further discussion.