[saag] Re: [nasr] Re: Re: Re: Re: NASR BOF Follo w-Up

Luigi IANNONE <[email protected]>
Newsgroups gmane.ietf.saag
Message-ID <[email protected]>

From: Eric Rescorla <[email protected]>
Sent: Friday, May 23, 2025 6:32 PM
To: Luigi IANNONE <[email protected]>
Cc: Watson Ladd <[email protected]>; Meiling Chen <[email protected]>; Henk Birkholz <[email protected]>; Liuchunchi <[email protected]>; Toerless Eckert <[email protected]>; [email protected]; IETF SAAG <[email protected]>; Luigi Iannone <[email protected]>
Subject: Re: [nasr] Re: [saag] Re: Re: Re: NASR BOF Follow-Up



On Thu, May 22, 2025 at 12:52 AM Luigi IANNONE <[email protected]<mailto:[email protected]>> wrote:
Hi Watson,

>
> Correct. Some claims are easy to verify. Most aren't. Statements that "the
> router supports X" aren't really interesting. Statements that "this
> configuration will never pass your traffic over a bad link" are, but are a lot
> harder to show.
>
> >

[LI] Agreed. This is a very claim hard show/attest.
Note however that this is not what NASR is trying to do.
NASR is more about router has feature X, Y, and Z which is what I want, and that traffic goes through the selected routers that support X, Y and Z.
NASR is not about proving that traffic does not go somewhere else (proof of non-transit is out of scope).

As I understood the presentations, you wanted to make claims like:

* This traffic was sent over an encrypted link
[LI] No. NASR is not about encryption. Your traffic will be protected with end-to-end encryption which is out of scope and developed elsewhere.
The use of MACSEC (as you mention in another email) is a possible property the you may wish to use but is part of NASR as any other claim you want to satisfy.

* All traffic to address X will be sent over an encrypted link
[LI] Identification of traffic is not restricted just  to “destination address X”. As for the encrypted link see my previous comment.


* This traffic is not being sent to a spanning port or otherwise available for monitoring

[LI] This is a declination of the proof of non-transit, which is out of scope.


Correct?
[LI] I think there is still some confusion. ;-)

Ciao

L.




-Ekr



-Ekr


Ciao

L.

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