From: Juergen Schoenwaelder <[email protected]>
Sent: 10 February 2021 17:32
RFC 8407:

4.  YANG Usage Guidelines

   Modules in IETF Standards Track specifications MUST comply with all
   syntactic and semantic requirements of YANG 1.1 [RFC7950].

The rule you quoted does not apply since we are talking about an IANA
document.

<tp>

Yes.  This is the sort of detail that I would leave to IANA to sort out 
trusting them to come back as and when they want clarification.  I would start 
with a reference clause to the current version on the IANA website.  The 
weakness of this is that once IANA have performed the update, then the previous 
version will not be readily available, unlike RFC which last a long time but as 
I say, leave the detail to IANA.

Tom Petch
/js

On Wed, Feb 10, 2021 at 05:25:26PM +0000, Kent Watsen wrote:
>
>
> > On Feb 10, 2021, at 11:46 AM, tom petch <[email protected]> wrote:
> >
> > Not quite for me.  The current version is that on the IANA website, RFC7317 
> > is history at least for IANACH so I think that the YANG reference for the 
> > update should be to the IANA website.
> >
>
> Please provide OLD/NEW text.
>
> FWIW, RFC8407 says:
>
>    A "revision" statement MUST be present for each published version of
>    the module.  The "revision" statement MUST have a "reference"
>    substatement.  It MUST identify the published document that contains
>    the module.
>
> So what is the “document”?
>
>     revision 2021-MM-DD {
>       description
>         “Deprecated the 'crypt-hash-md5’ feature per RFC 6151.";
>       reference
>         "RFC 6151:
>              Updated Security Considerations for the MD5
>              Message-Digest and the HMAC-MD5 Algorithms";
>     }
>
> But note that 6151 was published long before 7317 and, besides, it doesn’t 
> “deprecate” MD5.
>
> We can’t reference 8573 because it's NTP-specific.  Perhaps iana-crypt-hash 
> is fine, and instead ntp-yang-data-model should be republished, augmenting in 
> the desired “status” while referencing 8573.
>
> K.
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--
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>

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