Authors and Chairs,

>From the perspective of someone without detailed familiarity of this algorithm 
>family, it would be helpful to have in Section 3 a more normative reference 
>into which part of FIPS 205 these algorithms are defined; I assume Section 
>10.2.1 but there is no actual normative statement to affirm this. Can this be 
>added to clarify?

 

Similarly, in draft Section 5.2 there is a normative statement about “use of 
KeyValidate” but I don’t see that term “KeyValidate” used elsewhere in the 
draft or in FIPS 205. Can this statement be updated to reference a specific 
section of FIPS 205 and use whatever terms are in that specification?

 

The binding of SLH-DSA key material into the AKP structure in Section 4 also 
seems a little loose, based on ML-DSA definitions in the other COSE draft I can 
guess that only SLH-DSA seed bytes are used in the AKP fields but it would be 
more clear if there were normative statements in this draft similar to those in 
Section 4 of ML-DSA draft. The term “seed” does not actually appear anywhere in 
this draft, which leaves a burden on the reader to understand what is actually 
required for interoperability.

 

Thanks for consideration of this feedback before progressing to IESG review.

Brian S.

 

From: Ivaylo Petrov <[email protected]> 
Sent: Tuesday, March 24, 2026 1:58 PM
To: cose <[email protected]>
Cc: Cose Chairs Wg <[email protected]>; [email protected]
Subject: [EXT] [COSE] WGLC: draft-ietf-cose-sphincs-plus-07 (Ends 2026-04-14)

 


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