Published · United States
NIST CSFGuidance document
NIST opens public comment on draft revision of SP 800-185 until 7 December 2026
NIST opened public comment on the SP 800-185 revision adding streaming interfaces for XOF functions; comments are accepted until 7 December 2026.
1 source · National Institute of Standards and Technology

What happened
- NIST released a draft revision of Special Publication 800-185, which defines SHA-3 derived functions such as cSHAKE, KMAC, TupleHash, and ParallelHash.
- No penalties or mandatory deadlines are attached at this stage.
Why it matters
Stakeholders developing cryptographic libraries should assess whether the new streaming APIs affect their implementations and consider submitting feedback before the comment deadline.
Business impact
Adopting the streaming interfaces could simplify integration of SHA-3 functions in constrained environments, but may require code changes and testing to ensure compatibility.
Drafted automatically from the sources below. How we write summaries
Does this summary seem wrong?What to check
Review draft SP 800-185 revisionMedium priority
Examine the added streaming interface specifications for relevance to your cryptographic implementations.
Submit public commentMedium priority
Provide feedback to NIST by 7 December 2026 if the changes impact your products or security posture.
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