On 26/06/2025 09:02, jeffb wrote:
Possibly a good place to start:
https://datatracker.ietf.org/doc/html/rfc3490
Specifically Section 5.. though I have no idea how to register/who
controls ACE prefixes:
https://datatracker.ietf.org/doc/html/rfc3490#section-5
Jeff,
Thanks.
It doesn't discuss /why/ xn-- was chosen, though it does say:
The ACE prefix, used in the conversion operations (section 4
<https://datatracker.ietf.org/doc/html/rfc3490#section-4>), is two
alphanumeric ASCII characters followed by two hyphen-minuses. It
cannot be any of the prefixes already used in earlier documents,
which includes the following: "bl--", "bq--", "dq--", "lq--", "mq--",
"ra--", "wq--" and "zq--".
However, I couldn’t find a discussion of ACE prefixes, or how any of the
above were selected.
Gihan
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