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Re: [netmod] MD5 in ianach ex-RFC7317

Kent Watsen <kent@watsen.net> Wed, 10 February 2021 17:25 UTC

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From: Kent Watsen <kent@watsen.net>
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Date: Wed, 10 Feb 2021 17:25:26 +0000
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To: tom petch <ietfc@btconnect.com>
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Subject: Re: [netmod] MD5 in ianach ex-RFC7317
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> On Feb 10, 2021, at 11:46 AM, tom petch <ietfc@btconnect.com> 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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