Decision to Revise SP 800-135 Rev. 1

In July 2023, NIST's Crypto Publication Review Board initiated a review process for NIST Special Publication (SP) 800-135 Revision 1, Recommendation for Existing Application-Specific Key Derivation Functions (December 2011).

In May 2024, NIST proposed revising SP 800-135 Rev. 1, in response to the public comments received. NIST did not receive public comments in response to that proposal.

NIST has decided 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, Transitioning the Use of Cryptographic Algorithms and Key Lengths, regarding approved hash functions, and
update references to current versions of existing application-specific key derivation functions.

The effort to revise SP 800-135 Rev. 1 will follow the typical process of posting a draft for public comment. Monitor progress on CSRC News and CSRC Publications, and by subscribing to email updates.

More details of this review are available at NIST’s Crypto Publication Review Project site.

See: Key Management
See: Crypto Publication Review Project

NIST to Revise Special Publication 800-135 Rev. 1 | Recommendation for Existing Application-Specific Key Derivation Functions
August 20, 2024