Hi all,

Before an RFC is published, the RPC checks the references to ensure that they are current. However, like RFCs, external sources can be updated or obsoleted after the RFC is published.

On 4/2/25 2:13 AM, S Moonesamy wrote:
Hi Alexis,

An RFC can reference an external standard or an external source.  As an example, RFC 3174 has the following reference:

    "Secure Hash Standard", United States of American,
    National Institute of Science and Technology, Federal
    Information Processing Standard (FIPS) 180-1, April
    1993

[JM] Although this standard has been superseded, it is still available at csrc.nist.gov and a reader can also find the latest version. Note that RFC 3174 has been updated by RFC 6234, which references the Secure Hash Standard document that was current at the time (FIPS 180-3, which is also still available).


It may happen that the external source disappeared, e.g. Erratum #8090.

[JM] We discussed this erratum report on this list [1]. We couldn't find the paper, and the journal seems to have folded, so yes, this source is gone. Note that missing sources should be less of an issue in the future because outlinks from RFCs started to be archived in 2023 [2].

Erratum report 8090 [3] was rejected based on the IESG's guidance for handling errata reports that mention broken URIs [4] (i.e., the link was valid at the time of publication).


There was recently a case of a external standard/source, referenced normatively, which was retracted.

[JM] Which standard is this?


Do other publishers recommend that the external/source be marked as "retracted"?

[JM] We don't know if [ZONEENUM] (the subject of erratum report 8090) was retracted. We just don't know what happened to it.

If [ZONEENUM] was retracted (in the sense of academic publishing [5]), it would be up to its publisher to make this known. It would then be up to the IETF stream to determine if a bis or Updates document would be required to handle the retraction or if a verified erratum would be sufficient.

Note, though, that [ZONEENUM] is an informative reference, and there is another, accessible reference that supports the statement made in RFC 9276:

   Recent academic studies have shown that NSEC3 hashing provides
   only moderate protection [GPUNSEC3] [ZONEENUM].

So the inaccessibility of [ZONEENUM] is not an impediment to understanding the text.

Best regards,
Jean


[1] https://mailarchive.ietf.org/arch/msg/rfc-interest/s8tsACJrTzLJYouiK8mUT1H_4B8/

[2] https://mailarchive.ietf.org/arch/msg/rfc-interest/0Xyf9GdXgQICq7p4luH7r91T110/

[3] https://www.rfc-editor.org/errata/eid8090

[4] https://datatracker.ietf.org/doc/statement-iesg-iesg-processing-of-rfc-errata-for-the-ietf-stream-20210507/

[5] https://en.wikipedia.org/wiki/Retraction_in_academic_publishing


Regards,
S. Moonesamy

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