[with no hats]

It makes sense that any “Using algorithm A in IKEv2” draft is going to have 
algorithm A as a normative reference, because you can’t implement the new 
document without using the old document.

This is also what we did with RFC 8031 and 8420 - the last two times we had a 
new algorithm in an IPsecME document.

Yoav

> On 22 Jul 2026, at 18:58, John Mattsson 
> <[email protected]> wrote:
> 
> The -01 version makes the paywalled ISO reference normative. In the adopted 
> -00 version, it was only informative. Keeping the paywalled reference 
> informative was a requirement for my support of adoption.
> 
> I strongly oppose this change, which, to my knowledge, has not been discussed 
> on the IPsec mailing list.
> 
> Cheers,
> John Preuß Mattsson
> 
> 
> On 2026-07-04, 17:42, "[email protected]" <[email protected]> 
> wrote:
> 
> Internet-Draft draft-ietf-ipsecme-hybrid-kem-ikev2-frodo-01.txt is now
> available. It is a work item of the IP Security Maintenance and Extensions
> (IPSECME) WG of the IETF.
> 
>    Title:   Post-quantum Key Exchange in IKEv2 with FrodoKEM
>    Authors: Guilin Wang
>             Leonie Bruckert
>             Valery Smyslov
>             Meiling Chen
>    Name:    draft-ietf-ipsecme-hybrid-kem-ikev2-frodo-01.txt
>    Pages:   16
>    Dates:   2026-07-04
> 
> Abstract:
> 
>    FrodoKEM is an unstructured lattice based Key Encapsulation Mechanism
>    (KEM), standardized by ISO.  Compared to ML-KEM, it is considered
>    with more conservative security.  This draft specifies how to use
>    FrodoKEM by itself or as an additional key exchange in IKEv2 along
>    with a traditional key exchange.  These options enable to negotiate
>    IKE and Child SA keys that are safe against a Cryptographically
>    Relevant Quantum Computer (CRQC).
> 
> The IETF datatracker status page for this Internet-Draft is:
> https://datatracker.ietf.org/doc/draft-ietf-ipsecme-hybrid-kem-ikev2-frodo/
> 
> There is also an HTMLized version available at:
> https://datatracker.ietf.org/doc/html/draft-ietf-ipsecme-hybrid-kem-ikev2-frodo-01
> 
> A diff from the previous version is available at:
> https://author-tools.ietf.org/iddiff?url2=draft-ietf-ipsecme-hybrid-kem-ikev2-frodo-01
> 
> Internet-Drafts are also available by rsync at:
> rsync.ietf.org::internet-drafts
> 
> 
> 
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