Re: [dnsext] How DNAME solves the aliasing problem in Unicode for ITU-T/ISO OIDs

Masataka Ohta <> Thu, 23 September 2010 00:07 UTC

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Date: Thu, 23 Sep 2010 08:52:36 +0900
From: Masataka Ohta <>
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Subject: Re: [dnsext] How DNAME solves the aliasing problem in Unicode for ITU-T/ISO OIDs
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Alfred wrote:

> > For the benefit of users (and the cash flow of OID registration
> > authorities?), the 'new' OID system allows unlimited registering
> > of aliases at each level of the tree (not even restricted to
> > 'sibling' OIDs in the OID tree).

Do you mean that labels with 20 Greek characters will have 1M
aliases just for case insensitive domain names, optionally with
DNSSEC, for free?

Or, do you mean customers must pay 1M times more to make domain
names with a label of 20 Greek characters case insensitive?

Neither ares very practical, I'm afraid.

Or, do you mean that they just think DNSSEC impractical.

> > Therefore, it is interesting to observe how the ITU-T and ISO/IEC
> > deal with the aliasing problem in the OID system and in the ORS.

I'm afraid aliasing problem is unsolvable internationally even for
case insensitivity,

For example, how should 'y' with diaeresis can be case insensitive
when 'Y' with diaeresis dose not exist in ISO-8859/1, which assumes
'Y' with diaeresis never appear, but dose exist in Unicode.

						Masataka Ohta