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[dnssd] UTF8 use in DNS populated by mDNS

Douglas Otis <doug.mtview@gmail.com> Thu, 20 November 2014 00:50 UTC

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From: Douglas Otis <doug.mtview@gmail.com>
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Date: Wed, 19 Nov 2014 16:50:39 -0800
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Subject: [dnssd] UTF8 use in DNS populated by mDNS
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Dear Dnssd Wg,

If UTF-8 is to be permitted in DNS populated using mDNS inputs, a superset of rules directly and indirectly established to support safe use of IDNA labels are necessary, otherwise omitting such requirements would permit trivial spoofing.  The requirements should include IDNA2008 considerations that restrict permitted code points.  It seems some advocate use of spaces in a domain name label be permitted.  Even this minor change may confuse users about the specific domain when seen with respect to commandline based applications.

Regards,
Douglas Otis

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