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Re: [idn] IDN spoofing

To: <idn@ops.ietf.org>, "Unicode Mailing List" <unicode@unicode.org>
Subject: Re: [idn] IDN spoofing
From: "Doug Ewell" <dewell@adelphia.net>
Date: Sat, 19 Feb 2005 13:31:37 -0800
Cc: <verdy_p@wanadoo.fr>, Keld JÃrn Simonsen <keld@dkuug.dk>, "Erik van der Poel" <erik@vanderpoel.org>
References: <20050219172516.43142.qmail@web90109.mail.scd.yahoo.com>

Philippe Verdy <vpi92 at yahoo dot fr> wrote:

> The bad thing about your argument is that you are trying to mix
> uppercase and uppercase letters. But for IDN, only lowercase letters
> are really made distinct and encodable, as uppercase letters are case
> folded to lowercase. So let's just concentrate on the set of letters
> that really are distinct in lowercase because this is the form where
> DNS servers will make distinctions in ASCII letters.

Fine, get rid of all the examples that involve uppercase.  The problem
is still there:

iÎ
pÏ
uÏ
vÎ
wÏ
yÎ

-Doug Ewell
 Fullerton, California
 http://users.adelphia.net/~dewell/

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