Re: [idn] I-D ACTION:draft-ietf-idn-uri-00.txt

["D. J. Bernstein" <djb@cr.yp.to>]

James Seng/Personal writes:
> Without going to the details, it is possible to design an ACE which
> has almost the resultant length as UTF-8

Without gigantic tables of common character sequences? Without using
punctuation or control characters that people can't type? Without a
noticeable risk of misinterpreting existing ASCII names?

If it's possible to do this, go ahead! In the meantime, I'm going to
focus on the proposals that have actually been worked out.

> if "10-byte limit" is your concern.

There's nothing special about 10. My examples show that every extra byte
poses a risk; we don't have the 63-byte safe harbor that some people
have imagined. A user's 5-byte or 10-byte or 15-byte domain name can
indirectly trip his software's 64-byte local-part length limit.

---Dan