Re: [DNSOP] Last Call: <draft-ietf-dnsop-algorithm-update-05.txt> (Algorithm Implementation Requirements and Usage Guidance for DNSSEC) to Proposed Standard

Paul Wouters <paul@nohats.ca> Mon, 18 February 2019 00:13 UTC

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Date: Sun, 17 Feb 2019 19:13:01 -0500 (EST)
From: Paul Wouters <paul@nohats.ca>
To: Mats Dufberg <mats.dufberg@internetstiftelsen.se>
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Subject: Re: [DNSOP] Last Call: <draft-ietf-dnsop-algorithm-update-05.txt> (Algorithm Implementation Requirements and Usage Guidance for DNSSEC) to Proposed Standard
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On Fri, 15 Feb 2019, Mats Dufberg wrote:

> The table in section 3.3 ("DS and CDS Algorithms") of the draft states that SHA-1 is "MUST NOT" for "DNSSEC Delegation" but in the narrative text under the table it states "SHA-1 [...] is NOT RECOMMENDED for use in generating new DS and CDS records."
>
> The two statements should be consistent in the final RFC.

Done, thanks for spotting that.

https://tools.ietf.org/rfcdiff?url2=draft-ietf-dnsop-algorithm-update-06.txt

     SHA-1 is still in wide use for DS records, so validators MUST
-   implement validation, but it is NOT RECOMMENDED for use in generating
-   new DS and CDS records.  (See Operational Considerations for caveats
-   when upgrading from SHA-1 to SHA-256 DS Algorithm.)
+   implement validation, but it MUST NOT be used to generate new DS and
+   CDS records.  (See Operational Considerations for caveats when
+   upgrading from SHA-1 to SHA-256 DS Algorithm.)

Paul