Re: [Int-dir] Intdir telechat review of draft-ietf-drip-auth-46

[[e-mail]]

Hi Carlos, 

Thanks for the review.

Please see one comment inline as Doc Shepherd.

Cheers,
Med

> -----Message d'origine-----
> De : Carlos Jesús Bernardos via Datatracker <[e-mail]>
> Envoyé : mardi 30 janvier 2024 00:28
> À : [e-mail]
> Cc : [e-mail]; [e-mail]; tm-
> [e-mail]
> Objet : Intdir telechat review of draft-ietf-drip-auth-46
> 
> Reviewer: Carlos Jesús Bernardos
> Review result: Ready with Nits
> 
> I am an assigned INT directorate reviewer for <draft-ietf-drip-auth>.
> These comments were written primarily for the benefit of the Internet
> Area Directors.
> Document editors and shepherd(s) should treat these comments just like
> they would treat comments from any other IETF contributors and resolve
> them along with any other Last Call comments that have been received.
> For more details on the INT Directorate, see
> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdata
> tracker.ietf.org%2Fgroup%2Fintdir%2Fabout%2F&data=05%7C02%7Cmohamed.bo
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> &reserved=0.
> 
> Please note that this particular document is really outside of my area
> of expertise [1].
> 
> Based on my review, if I was on the IESG I would ballot this document
> as NO OBJECTION.
> 
> The only issue/comment I have is on the use of the DNS indicated in
> the
> document:
> 
>    An Observer SHOULD query DNS for the UA's HI.  If not available it
>    may have been revoked.  Note that accurate revocation status is a
>    DIME inquiry; DNS non-response is a hint that a DET is expired or
>    revoked.  It MAY be retrieved from a local cache, if present.  The
>    local cache is typically populated by DNS lookups and/or by
> received
>    Broadcast Endorsements (Section 3.1.2).
> 
> I think additional details would be helpful on the assumptions of the
> DNS security mechanisms that are assumed are in place for this to work
> (or to make this not subject of attacks).

[Med] There is this text early in the document: 

   Like most aviation matters, the overall objectives here are security
   and ultimately safety oriented.  Since DRIP depends on DNS for some
   of its functions, DRIP usage of DNS needs to be protected in line
   with best security practices.  Many participating nodes will have
   limited local processing power and/or poor, low bandwidth QoS paths.
   Appropriate and feasible security techniques will be highly UAS and
   Observer situation dependent.  Therefore specification of particular
   DNS security options, transports, etc. is outside the scope of this
   document.

> 
> The following are minor issues (typos, misspelling, minor text
> improvements) with the document:
> 
> - Expand DRIP in the introduction (it is done in the abstract, but I
> think it improves readability if done also the first time the term is
> used in the main body of the document).
> 
> Thanks,
> 
> Carlos
> 
> [1] I should have probably realized this when assigning this document
> to myself for review, thus I owe another apology.
> 

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