Re: [babel] I-D Action: draft-ietf-babel-hmac-01.txt

Toke Høiland-Jørgensen <toke@toke.dk> Wed, 14 November 2018 17:18 UTC

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To: Juliusz Chroboczek <jch@irif.fr>, babel@ietf.org
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Date: Wed, 14 Nov 2018 09:18:33 -0800
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Subject: Re: [babel] I-D Action: draft-ietf-babel-hmac-01.txt
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Juliusz Chroboczek <jch@irif.fr> writes:

>> https://tools.ietf.org/html/draft-ietf-babel-hmac-01
>> https://datatracker.ietf.org/doc/html/draft-ietf-babel-hmac-01
>
> Dear all,
>
> Weronika and I have spent most of the afternoon writing the Security
> Considerations section that has been added in this revision. We'll be
> grateful for a review.

One thing: This sentence in the security considerations is odd:

> The scope of this protocol is strictly limited: it only provides
> authentication, on the assumption that routing information is not
> confidential, only symmetric keying, and only allows for the use of a
> small number of symmetric keys on each link.

The "on the assumption that routing information is not confidential" bit
breaks up the flow; suggest revising :)

-Toke