Fwd: [pqc-forum] Call for comments: ipd SP 800-230: Additional SLH-DSA Parameter Sets for Limited Signature Use Cases
Ira McDonald via ipp <[email protected]> Thu, 7 May 2026 14:51:51 -0400
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--===============3980195520504448050== Content-Type: multipart/alternative; boundary="000000000000ec6b7906513ec624" --000000000000ec6b7906513ec624 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi, This NIST SP800-230 spec updates with optimized parameter sets (i.e., faster execution) for FIPS 205 (SLH-DSA) with tradeoffs of less total signatures (still very useful for things like firmware updates). This is the initial public draft. It's likely that the next release will be the final standard. Cheers, - Ira ---------- Forwarded message --------- From: '[email protected]' via pqc-forum <[email protected]> Date: Mon, Apr 13, 2026 at 11:22=E2=80=AFAM Subject: [pqc-forum] Call for comments: ipd SP 800-230: Additional SLH-DSA Parameter Sets for Limited Signature Use Cases To: pqc-forum <[email protected]> All, NIST is seeking public comments on the initial public draft (ipd) of Specia= l Publication (SP) 800-230, *Additional SLH-DSA Parameter Sets for Limited-Signature Use Cases* <https://csrc.nist.gov/pubs/sp/800/230/ipd>. This document serves as a technical extension to FIPS 205 <https://csrc.nist.gov/pubs/fips/205/final> by specifying six additional parameter sets for security levels 1, 3, and 5. These variants are specifically tailored for use cases that require fast verification and reduced signature sizes, such as the signing of software, firmware, and digital certificates. These optimizations are achieved by establishing a strict limit of 2^24 signatures per signing key; therefore, these sets are not approved for general-purpose use. NIST requests feedback on the suitability of these additional parameter sets, specifically asking reviewers to identify applications for which these variants might incur unacceptable performance or to suggest alternative sets that are better suited for such use cases. Users must perform a thorough evaluation to ensure that the signature limit is never exceeded during a key's lifetime. Please submit comments to [email protected] by June 12, 2026. See: https://csrc.nist.gov/pubs/sp/800/230/ipd Dustin Moody NIST PQC --=20 You received this message because you are subscribed to the Google Groups "pqc-forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/list.nist.gov/d/msgid/pqc-forum/abbf320d-b932-4= a08-b72f-b6eed95a0356n%40list.nist.gov <https://groups.google.com/a/list.nist.gov/d/msgid/pqc-forum/abbf320d-b932-= 4a08-b72f-b6eed95a0356n%40list.nist.gov?utm_medium=3Demail&utm_source=3Dfoo= ter> . --000000000000ec6b7906513ec624 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Hi,</div><div><br></div><div>This NIST SP800-230 spec= updates with optimized parameter sets (i.e., faster execution)</div><div>f= or FIPS 205 (SLH-DSA) with tradeoffs of less total signatures (still very u= seful for things</div><div>like firmware updates).</div><div><br></div><div= >This is the initial public draft.=C2=A0 It's likely that the next rele= ase will be the final standard.</div><div><br></div><div>Cheers,</div><div>= - Ira</div><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D= "ltr" class=3D"gmail_attr">---------- Forwarded message ---------<br>From: = <b class=3D"gmail_sendername" dir=3D"auto">'<a href=3D"mailto:dustin...= @nist.gov">[email protected]</a>' via pqc-forum</b> <span dir=3D"auto"= ><<a href=3D"mailto:[email protected]">[email protected]</a>= ></span><br>Date: Mon, Apr 13, 2026 at 11:22=E2=80=AFAM<br>Subject: [pqc= -forum] Call for comments: ipd SP 800-230: Additional SLH-DSA Parameter Se= ts for Limited Signature Use Cases<br>To: pqc-forum <<a href=3D"mailto:p= [email protected]">[email protected]</a>><br></div><br><br>Al= l,<div><br></div><div><p style=3D"box-sizing:inherit;margin:0px 0px 12px;co= lor:rgb(27,27,27);font-family:"Source Sans Pro",Helvetica,Arial,s= ans-serif;font-size:16px">NIST is seeking public comments on the initial pu= blic draft (ipd) of <a href=3D"https://csrc.nist.gov/pubs/sp/800/230/ipd" t= arget=3D"_blank">Special Publication (SP) 800-230,=C2=A0<i style=3D"box-siz= ing:inherit">Additional SLH-DSA Parameter Sets for Limited-Signature Use Ca= ses</i></a>. This document serves as a technical extension to=C2=A0<a href= =3D"https://csrc.nist.gov/pubs/fips/205/final" target=3D"_blank">FIPS 205</= a>=C2=A0by specifying six additional parameter sets for security levels 1, = 3, and 5. These variants are specifically tailored for use cases that requi= re fast verification and reduced signature sizes, such as the signing of so= ftware, firmware, and digital certificates. These optimizations are achieve= d by establishing a strict limit of 2^24 signatures per signing key; theref= ore, these sets are not approved for general-purpose use.<span style=3D"box= -sizing:inherit"></span></p><p style=3D"box-sizing:inherit;margin:0px 0px 1= 2px;color:rgb(27,27,27);font-family:"Source Sans Pro",Helvetica,A= rial,sans-serif;font-size:16px"><span style=3D"box-sizing:inherit">=C2=A0</= span></p><p style=3D"box-sizing:inherit;margin:0px 0px 12px;color:rgb(27,27= ,27);font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;fon= t-size:16px">NIST requests feedback on the suitability of these additional = parameter sets, specifically asking reviewers to identify applications for = which these variants might incur unacceptable performance or to suggest alt= ernative sets that are better suited for such use cases. Users must perform= a thorough evaluation to ensure that the signature limit is never exceeded= during a key's lifetime. Please submit comments to=C2=A0<a href=3D"mai= lto:[email protected]" style=3D"box-sizing:inherit;background-col= or:transparent;color:rgb(17,75,115);text-decoration-line:underline" target= =3D"_blank">[email protected]</a>=C2=A0by June 12, 2026.</p><p st= yle=3D"box-sizing:inherit;margin:0px 0px 12px;color:rgb(27,27,27);font-fami= ly:"Source Sans Pro",Helvetica,Arial,sans-serif;font-size:16px">S= ee:=C2=A0<a href=3D"https://csrc.nist.gov/pubs/sp/800/230/ipd" target=3D"_b= lank">https://csrc.nist.gov/pubs/sp/800/230/ipd</a></p><p style=3D"box-sizi= ng:inherit;margin:0px 0px 12px;color:rgb(27,27,27);font-family:"Source= Sans Pro",Helvetica,Arial,sans-serif;font-size:16px"><br></p><p style= =3D"box-sizing:inherit;margin:0px 0px 12px;color:rgb(27,27,27);font-family:= "Source Sans Pro",Helvetica,Arial,sans-serif;font-size:16px">Dust= in Moody</p><p style=3D"box-sizing:inherit;margin:0px 0px 12px;color:rgb(27= ,27,27);font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;= font-size:16px">NIST PQC</p></div> <p></p> -- <br> You received this message because you are subscribed to the Google Groups &= quot;pqc-forum" group.<br> To unsubscribe from this group and stop receiving emails from it, send an e= mail to <a href=3D"mailto:[email protected]" target=3D"_b= lank">[email protected]</a>.<br> To view this discussion visit <a href=3D"https://groups.google.com/a/list.n= ist.gov/d/msgid/pqc-forum/abbf320d-b932-4a08-b72f-b6eed95a0356n%40list.nist= .gov?utm_medium=3Demail&utm_source=3Dfooter" target=3D"_blank">https://= groups.google.com/a/list.nist.gov/d/msgid/pqc-forum/abbf320d-b932-4a08-b72f= -b6eed95a0356n%40list.nist.gov</a>.<br> </div></div> --000000000000ec6b7906513ec624-- --===============3980195520504448050== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ipp mailing list [email protected] https://www.pwg.org/mailman/listinfo/ipp --===============3980195520504448050==--