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Re: Dear RIPE: Please don't encourage phishing
From: Masataka Ohta <mohta () necom830 hpcl titech ac jp>
Date: Mon, 13 Feb 2012 15:11:30 +0900

Jimmy Hess wrote:

As soon as you have a browser parsing  punycode stuff,  any string
containing unicode characters has a unique punycode encoding / RFC
3491 / RFC 3492.

Labels (not "any string") which happens to be pure ASCII
are still case insensitive, which is DNS.

Note that, according to Valdis;

: (The actual policy for the .UA registrar is more subtle.
: They *do* in fact allow "U+0441 Cyrillic Small Letter ES"
: which is visually a C to us Latin-glyph users.  However,
: they require at least one character that's visually unique
: to Cyrillic in the domain name.  They also don't allow
; mixed Cyrillic/Latin scripts in one domain name).

a label (not "domain name") of a Ukrainian word all the
characters of which have shapes identical to some ASCII
characters can only be represented using ASCII characters

                                                Masataka Ohta

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