Re[4]: IDN Security

From: Alexander Savenkov (
Date: Fri Feb 18 2005 - 09:14:20 CST

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    on 2005-02-18T08:48:24+03:00 Doug Ewell <> wrote:

    > Alexander Savenkov <savenkov at xmlhack dot ru> wrote:

    >>> In
    >>>, IANA
    >>> recommend blacklisting the following Unicode character ranges as
    >>> unusable within IDNs:
    >>> * Box Drawing
    >> ...
    >>> Blacklisting all of these can be an effective part of an overall more
    >>> thorough anti-spoofing solution by greatly cutting down on spoofing
    >>> opportunities prior to other forms of filtering.
    >> "Greatly" is not correct. "Slightly" is more appropriate.

    > I'm not convinced that (a) box-drawing characters will contribute
    > noticeably to any spoofing problems nor that (b) box-drawing characters
    > are in particularly hot demand for IDNs anyway, for either legitimate or
    > nefarious purposes.

    Absolutely agreed. I didn't mean the box-drawing set of characters
    specifically, but rather all the characters that Neil thought were
    about to greatly facilitate the solution of the spoofing problem.

    In fact, I just wanted to reduce the number of lines to quote. Sorry
    for the confusion.


      Alexander Savenkov                     

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