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Re: [babel] Minor clarification to HMAC

"STARK, BARBARA H" <bs7652@att.com> Fri, 28 June 2019 13:34 UTC

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From: "STARK, BARBARA H" <bs7652@att.com>
To: 'Juliusz Chroboczek' <jch@irif.fr>, "'babel@ietf.org'" <babel@ietf.org>
Thread-Topic: [babel] Minor clarification to HMAC
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Date: Fri, 28 Jun 2019 13:34:44 +0000
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Subject: Re: [babel] Minor clarification to HMAC
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> The draft says that a neighbour entry MUST NOT be created before HMAC is
> verified (Section 4.3 first bullet).
> 
> It later says that a neighbour entry "might need to be created" when a
> challenge is sent, and "may need to be created" when a challenge is
> received.  However, it does not say whether it is legal to create an entry
> earlier.
> 
> I would therefore like to kindly request the permission of the group and the
> chairs to add the following between the first and second bullet points of
> Section 4.3:
> 
>   * A neighbour entry for the sender of the packet MAY be created at this
>     stage.  (Alternatively, an implementation MAY delay the creation of
>     a neighbour entry until a challenge request or reply is received.)
> 
> This clarification does not invalidate any implementations, it just makes the
> intent of the draft authors more explicit.

+1
I think this is a good change.
Barbara

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