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Re: [babel] rfc6126bis security implementation requirements

Juliusz Chroboczek <jch@irif.fr> Fri, 16 November 2018 13:18 UTC

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Date: Fri, 16 Nov 2018 14:18:46 +0100
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From: Juliusz Chroboczek <jch@irif.fr>
To: Toke Høiland-Jørgensen <toke@toke.dk>
Cc: Babel at IETF <babel@ietf.org>
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Subject: Re: [babel] rfc6126bis security implementation requirements
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>> A recommendation can be pretty weak depending on what you say about
>> when it might not be applicable. Let's see if anyone else has comments
>> on this.

> Well for my part, I read "recommend both" as "great, I can continue to
> not implement DTLS". :)

I take this to mean that you agree with me in principle...

> Don't have any strong opinion on the wording, though...

...but think I'm being overly pedantic.  (You probably have a stronger
expression in mind.)

As to implementing Babel-DTLS or not: the bet we're making with Babel-HMAC
is that people don't actually need asymmetric auth or confidentiality, and
that they'll be happy enough with the deliberately minimal features provided
by Babel-HMAC.

I like to think of Babel-DTLS as our insurance in case we lose the bet.
(David and Antonin might see things differently.)

-- Juliusz

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