On 25 June 2017 at 20:54, Paul Hoffman <paul.hoff...@vpnc.org> wrote:
> On 24 Jun 2017, at 6:25, Dick Franks wrote:
>
> > In each case,
> >
> > CDS 0 0 0 0
> >
> > CDNSKEY 0 3 0 0
> >
> > the final "0" is a conventional token representing a zero-length key
> field.
>
> Dick, can you give examples of that conventional token use?
>
This example is as good as any.
conventional: established by custom or agreement
token: a mark, sign or distinctive feature.
[Chambers 21st Century Dictionary]
The token (final zero) is not in this case a self-defining term, but is
given meaning, or in this case lack of meaning, by the formal agreement
(RFC8078) that a zero algorithm field will completely define a DELETE
CDS/CDNSKEY RR.
--Dick
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