From: Rick McGowan (firstname.lastname@example.org)
Date: Mon Jun 27 2005 - 15:02:13 CDT
Due to computer security issues, a set of guidelines is being drafted that
can impact the use of future International Domain Names (i.e.,
http://müller.de/ ) and identifiers. The computer security issues that have
arisen involve spoofing of letters or numbers (e.g., in a recent case,
unsuspecting users were sending credit card information to "PayPal.com"
which was spelled with a capital "I" in place of lowercase "L", because the
two are not visibly distinct in some fonts). Similarly Cyrillic or Greek
letters could be used in lieu of similar looking Latin letters in domain
The current draft Unicode Technical Report #36 contains guidelines that
suggest restricting a variety of characters; they would only be permitted
under lenient security settings. See
http://www.unicode.org/draft/reports/tr36/tr36.html. The document is a
working draft, and both it and the data files it points to may be edited up
to the time it is released.
Because of the subject matter, this draft will be released very soon, but
there is still some time for feedback. Comments received by the end of this
week (July 1) can be considered for this version of the document, while
those after that point will be considered for the next version. Comments
should be sent via http://unicode.org/reporting.html .
You many find it useful to look at the characters listed in the following
file: http://unicode.org/draft/reports/tr36/data/draft-restrictions.txt .
These lists include a representation of the characters, but the image may
not appear on your screen depending on the fonts installed on your machine;
you may need to use the character code numbers [or names] and refer to the
code charts at http://www.unicode.org/charts/.)
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