Re: Request for Authenticated but not Encrypted Traffic

Paul Vixie <paul@redbarn.org> Fri, 30 September 2022 02:24 UTC

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Subject: Re: Request for Authenticated but not Encrypted Traffic
To: "Salz, Rich" <rsalz=40akamai.com@dmarc.ietf.org>
Cc: "Randy Armstrong (OPC)" <randy.armstrong@opcfoundation.org>, "quic@ietf.org" <quic@ietf.org>
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From: Paul Vixie <paul@redbarn.org>
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Date: Thu, 29 Sep 2022 19:24:11 -0700
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Salz, Rich wrote on 2022-09-29 15:06:
> There are a couple of conflicting trends here. Most IETF 
> security-related work is aimed at the public Internet, not internal 
> enterprise. On the other hand, it makes sense to want COTS solutions and 
> not purpose-built things.

or noncommercial off-the-shelf things. for example, open source 
software. that is to say, "anything".

> We have direct experience with users being 
> forcibly “downgraded” when options to do that are available which is why 
> many participants are loathe to add things like “static RSA key 
> exchange” or “no content encryption” to the protocols developed here.

when i explain these concerns and recount the decisions made based on 
them to conference audiences, the surprise is total.

> As 
> Paul alluded, you’re unlikely to find much agreement for your use-case 
> given the perceived risks.

the requirement that i encrypt things that never leave my server or LAN 
means a lot of wasted heat and an inability to use names for which i 
lack certificates or else have certificates not signed by a global 
authority.

i recognize the perceived risks of not imposing those costs. i only hope 
others recognize the imposed costs of avoiding those risks. (which is 
what i also said when the ssh2 people removed the "none" enctype, fwiw.)

> On the other hand, you might be able to convince your vendors to support 
> RFC 9150 and make it a requirement in your RFP’s.
yes, that's a good way to proceed: build roads not walls.

-- 
P Vixie