Re: [secdir] [Last-Call] Secdir last call review of draft-ietf-opsawg-l3sm-l3nm-10

Hi Ben, all, 

Glad to see that you found the text where explain why MD5 is supported in the model. 

Added this NEW text to the security considerations section: 

   As discussed in Section 7.6.3, the module supports MD5 to basically
   accommodate the installed BGP base.  MD5 suffers from the
   security weaknesses discussed in Section 2 of [RFC6151] or
   Section 2.1 of [RFC6952].

Cheers,
Med

> -----Message d'origine-----
> De : last-call [mailto:last-call-bounces@ietf.org] De la part de
> Benjamin Kaduk
> Envoyé : mardi 3 août 2021 06:21
> À : tom petch <daedulus@btconnect.com>
> Cc : last-call@ietf.org; draft-ietf-opsawg-l3sm-l3nm.all@ietf.org;
> Rifaat Shekh-Yusef <rifaat.s.ietf@gmail.com>; secdir@ietf.org
> Objet : Re: [Last-Call] Secdir last call review of draft-ietf-
> opsawg-l3sm-l3nm-10
> 
> Hi Tom,
> 
> On Thu, Jul 29, 2021 at 05:10:00PM +0100, tom petch wrote:
> > Reading this I-D, I wondered what the secdir view is of
> recommending
> > the use of MD5 to secure the session as this I-D does for BGP.
> (Such
> > a use in NTP did generate a comment).
> 
> This part:
> 
>       'authentication':  The module adheres to the recommendations
> in
>          Section 13.2 of [RFC4364] as it allows enabling TCP-AO
>          [RFC5925] and accommodates the installed base that makes
> use of
>          MD5.  In addition, the module includes a provision for the
> use
> 
> seems to be about as good as we can do given the current state of
> deployment and implementation.
> 
> I will probably suggest adding some additional discussion of the
> weakness of MD5 to the security considerations in my ballot
> comments, if no such text appears before then.
> 
> Thanks,
> 
> Ben
> 
> --
> last-call mailing list
> last-call@ietf.org
> https://www.ietf.org/mailman/listinfo/last-call

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