NIST maintains its cryptography standards and guidelines using a periodic review process.
Currently, we are reviewing the following publications:
NIST requests feedback on all aspects of these publications. Additionally, NIST would appreciate feedback on the guidance for CMAC and CCM authentication tag lengths. Currently, both publications recommend a minimum tag length of 64 bits.
The public comment period is open through September 13, 2024. Comments may address the concerns raised in this announcement or other issues around security, implementation, clarity, risk, or relevance to current applications.
Send comments to cryptopubreviewboard@nist.gov with “Comments on SP 800-38B" or “Comments on SP 800-38C” in the subject.
Comments received in response to this request will be posted on the Crypto Publication Review Project site after the due date. Submitters’ names and affiliations (when provided) will be included, while contact information will be removed. See the project site for additional information about the review process.
Security and Privacy: authentication, encryption
Activities and Products: standards development