NIST Proposes to Revise SP 800-135 Rev. 1, Recommendation for Existing Application-Specific Key Derivation Functions
May 15, 2024

In July 2023, NIST's Crypto Publication Review Board initiated a review of Special Publication (SP) 800-135 Rev. 1, Recommendation for Existing Application-Specific Key Derivation Functions (2011). NIST received five public comments in response.  

NIST proposes to revise SP 800-135 Rev. 1 to:  

• standardize additional application-specific key derivation functions, 
• maintain consistency with the upcoming revision of SP 800-131A regarding approved hash functions, and  
• update references to current versions of existing application-specific key derivation functions. 

Submit your comments on this decision proposal by June 14, 2024 to cryptopubreviewboard@nist.gov with “Comments on SP 800-135 Decision Proposal” in the subject line.  

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.