Hi All,
NIST Proposes the Conversion of FIPS 198-1 (HMAC) to a NIST Special Publication
As a part of the periodic review of NIST's cryptographic standards and guidelines, NIST's Crypto Publication Review Board announced the review of FIPS 198-1 The Keyed-Hash Message Authentication Code (HMAC), in August 2021. In response, NIST received public comments.
NIST proposes to convert FIPS 198-1 to a NIST Special Publication (SP) and apply the following changes:
• Update the HMAC specification to include block sizes for the SHA-3 family of hash functions
• Include a discussion on truncation
• Improve the editorial quality and update references
Conversion to an SP: NIST typically specifies fundamental cryptographic primitives-block ciphers, digital signatures algorithms, and hash functions-as FIPS publications, whereas other cryptographic schemes-modes of operation, message authentication codes, etc.-are published as a part of the NIST SP 800 series. (For more information, see Section 3 of NISTIR 7977.) To be consistent with that approach, NIST proposes to convert FIPS 198-1 to an SP.
In particular, NIST proposes to develop a draft SP for the HMAC specification, updated as described above, which would be released for public comment. When the SP is finalized and published, FIPS 198-1 will be withdrawn simultaneously.
Send comments on the decision proposal by October 20, 2022, to
[email protected] with "Comments on FIPS 198-1 decision proposal" in the subject line.
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Michael Roza CPA, CISA, CIA, MBA, Exec MBA
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