SP 800-224 Keyed-Hash Message Authentication Code (HMAC): Specification of HMAC and Recommendations for Message Authentication
NASA Cybersecurity Policy Reference (OCIO/CSET) as of 2026-09-15
All changes in this version
All changes in this version
Title
Keyed-Hash Message Authentication Code (HMAC): Specification of HMAC and Recommendations for Message Authentication
Control
Listed as SP 800-224. Dated June 28, 2004.
Discussion
Public comment period closed 7/23/25