Hi All,

Thank you to RFC Editors and to Flo for the reviews.

I have attached an XML file which updates Flo's version with a single typo that 
I found but no other changes. Specifically, I changed "genearl solution" to 
"general solution" in the introduction in response to Editor comment 2.

For my response to the RFC Editor Comments:
1. Agree with list added by Flo and words included in title.
2. Agree with Flo's suggested text on this (with typo fixed as above)
3. Agree with the new text suggested.
4. Thank you for the updated reference.
5a. Agree that the word security is not needed. The original suggestions of 
references from RFC9771 used references specific to the topic in that RFC, 
namely AEAD algorithms. I prefer the reference suggested by Flo, which includes 
more general definitions.
5b. Agree with changes here.
6. I am happy with style changes. Please do make this edit.
7. I agree with my coauthor on this. Traditional has been used widely to refer 
to this mathematical concept, both in academia and within the IETF. Multiple 
documents within IETF use this draft as a reference, so changing a major 
definition at this stage would undermine that work and create confusion that 
this document seeks to prevent. The word "traditional" did get significant 
discussion within the Working Group, both in meetings and on list, and there 
was consensus that this was the correct choice. As per the document shepherd 
write-up, there was agreement to stick with commonly-used terms and to list 
possible synonyms in the draft and "traditional" was one of the words that this 
refers to. This discussion is captured in the introduction and in the 
definitions themselves.

Thanks again, I confirm I have reviewed the updated text of the document, and 
following removal of strong element, I am content to publish.

Michael

-----Original Message-----
From: Flo D <fl...@ncsc.gov.uk>
Sent: 30 May 2025 13:24
To: rfc-edi...@rfc-editor.org; Michael P1 <michael...@ncsc.gov.uk>; 
britta.h...@nps.edu
Cc: pquip-...@ietf.org; pquip-cha...@ietf.org; paul.hoff...@icann.org; 
paul.wout...@aiven.io; auth48archive@rfc-editor.org
Subject: Re: AUTH48: RFC-to-be 9794 
<draft-ietf-pquip-pqt-hybrid-terminology-06> for your review

Hello,

Thank you very much for the time put into preparing this draft for publication. 
 I am attaching an updating XML file with some changes.  This is my first time 
taking part in the AUTH48 process so apologies for any mistakes in engaging.

In response to the RFC Editor Comments:

1. Done
2. I have updated this in the new XML document to a preferred version, I hope 
this is clearer.
3. This is fine, I've updated this.
4. This is fine.
5a. The word security is not needed in the bracketed text, I have removed it.  
I've also added a reference for IND-CPA and IND-CPA security.
5b. These expansions are fine.
6. I am happy for you to remove the strong element. I have not updated this as 
I'm not an XML expert and I didn't want to mess up the formatting.
7. I believe that the draft conforms to the inclusive language guidance.  As it 
is a terminology document we have tried to use plain language as much as 
possible, while also ensuring that the nuances of the different terms are 
captured.  We do not believe that the word "traditional" here carries any value 
judgement, and it is defined in the document to ensure that this intention is 
clear.  In addition, the use of the word "traditional" to describe this 
mathematical concept is now well established and changing it in this document 
would lead to confusion and significantly reduce the effectiveness of the 
document.

Other than the changes in the XML document and the removal of the strong 
element I am happy with the content, but I will appreciate the checks from my 
co-authors as well.

Flo

________________________________________
From: rfc-edi...@rfc-editor.org <rfc-edi...@rfc-editor.org>
Sent: Friday, May 30, 2025 01:42
To: Flo D <fl...@ncsc.gov.uk>; Michael P1 <michael...@ncsc.gov.uk>; 
britta.h...@nps.edu <britta.h...@nps.edu>
Cc: rfc-edi...@rfc-editor.org <rfc-edi...@rfc-editor.org>; pquip-...@ietf.org 
<pquip-...@ietf.org>; pquip-cha...@ietf.org <pquip-cha...@ietf.org>; 
paul.hoff...@icann.org <paul.hoff...@icann.org>; paul.wout...@aiven.io 
<paul.wout...@aiven.io>; auth48archive@rfc-editor.org 
<auth48archive@rfc-editor.org>
Subject: Re: AUTH48: RFC-to-be 9794 
<draft-ietf-pquip-pqt-hybrid-terminology-06> for your review


Authors,



While reviewing this document during AUTH48, please resolve (as necessary) the 
following questions, which are also in the XML file.



1) <!-- [rfced] Please insert any keywords (beyond those that appear in

the title) for use on https://www.rfc-editor.org/search. -->





2) <!-- [rfced] May we update this sentence as follows for clarity?



Original:

   There may be a requirement for protocols that use both algorithm

   types, for example during the transition from traditional to post-

   quantum algorithms or as a general solution, to mitigate risks.



Perhaps:

   To mitigate risks, there may be a requirement for protocols that

   use both algorithm types (for example, during the transition from

   traditional to post-quantum algorithms or as a general solution).

-->





3) <!-- [rfced] May we adjust the text below as follows to make the verbs

"reduce" and "defining" parallel?



Original:

   Additionally, this document aims to reduce

   misunderstanding about use of the word "hybrid" as well as defining a

   shared language for different types of post-quantum and traditional

   hybrid constructions.



Perhaps:

   Additionally, this document aims to reduce

   misunderstandings about the use of the word "hybrid" and to define a

   shared language for different types of post-quantum and traditional

   hybrid constructions.

-->





4) <!-- [rfced] FYI, this reference has been edited to show the most

recent date it was updated (31 January 2025). Please review and

let us know if you prefer otherwise.



Original:

   [NIST_PQC_FAQ]

              National Institute of Standards and Technology (NIST),

              "Post-Quantum Cryptography FAQs", 5 July 2022,

              <https://csrc.nist.gov/Projects/post-quantum-cryptography/

              faqs>.

Current:

   [NIST_PQC_FAQ]

              NIST, "Post-Quantum Cryptography (PQC) FAQs", 31 January

              2025, <https://csrc.nist.gov/Projects/post-quantum-

              cryptography/faqs>.

-->





5) <!-- [rfced] Abbreviations:



a) Regarding IND-CPA and IND-CCA in Section 2:



Current:

   The standard security property for a PKE scheme is

   indistinguishability under chosen-plaintext attack (IND-CPA).

   IND-CPA security is not sufficient for secure communication in the

   presence of an active attacker.  Therefore, in general, PKE

   schemes are not appropriate for use on the Internet, and KEMs,

   which provide indistiguishability under chosen-ciphertext attack

   (IND-CCA security), are required.



- Is the word 'security' needed in 'IND-CCA security'?

- We note that RFC 9771 includes references for IND-CCA and IND-CCA2. Would

you like to add references to this document, or will this be sufficiently

clear to the reader? (See https://www.rfc-editor.org/rfc/rfc9771#section-4.2.1)





b) FYI, we added expansions for abbreviations upon first use for the

items below. Please review each expansion in the document carefully to

ensure correctness.



Elliptic Curve Diffie-Hellman (ECDH)

Module-Lattice-Based Key-Encapsulation Mechanism (ML-KEM) (per FIPS 203)

Module-Lattice-Based Digital Signature Algorithm (ML-DSA)

Internet Key Exchange Protocol Version 2 (IKEv2)

-->





6) <!-- [rfced] For readability we have formatted the lists in this

document with a line break between each term and its definition.

We suggest removing the <strong> element (which yields bold font

in the HTML and PDF, and yields asterisks in the TXT); please let

us know if removing <strong> is acceptable.

-->





7) <!-- [rfced] Please review the "Inclusive Language" portion of the online

Style Guide <https://www.rfc-editor.org/styleguide/part2/#inclusive_language>

and let us know if any changes are needed.  Updates of this nature typically

result in more precise language, which is helpful for readers.



In addition, please consider whether "traditional" should be updated throughout

this document for clarity.  While the NIST website

<https://web.archive.org/web/20250214092458/https://www.nist.gov/nist-research-library/nist-technical-series-publications-author-instructions#table1>

indicates that this term is potentially biased, it is also ambiguous.

-->





Thank you.



RFC Editor/kf/ar





On May 29, 2025, rfc-edi...@rfc-editor.org wrote:



*****IMPORTANT*****



Updated 2025/05/29



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--------------



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--------------------------------------

RFC9794 (draft-ietf-pquip-pqt-hybrid-terminology-06)



Title            : Terminology for Post-Quantum Traditional Hybrid Schemes

Author(s)        : F. Driscoll, M. Parsons, B. Hale

WG Chair(s)      : Sofia Celi, Paul E. Hoffman

Area Director(s) : Deb Cooley, Paul Wouters

Attachment: rfc9794.xml
Description: rfc9794.xml

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