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Re: [Ietf-krb-wg] WG Review: Stringprep after IDNA2008 WG (newprep)

Sam Hartman <hartmans-ietf@mit.edu> Tue, 18 May 2010 17:17 UTC

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From: Sam Hartman <hartmans-ietf@mit.edu>
To: iesg@ietf.org
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Date: Tue, 18 May 2010 13:15:18 -0400
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Cc: ietf-krb-wg@anl.gov, ietf@ietf.org, aland@freeradius.org, newprep@ietf.org
Subject: Re: [Ietf-krb-wg] WG Review: Stringprep after IDNA2008 WG (newprep)
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Hi.
I think there are two items that should be considered with the scope of
this working grou.

The first is RFC 4282.  RFC 4282 section 2.4 discusses
internationalization strategies based on stringprep and IDNA2003.  It
does not define its own profile.  Apparently, in addition to all the
reasons you would probably want to update anything based on IDNA 2003,
RFC 4282 does not meet the needs of the implementor community.  One
proposal for addressing RFC 4282 is draft-dekok-radext-nai-01.txt I
think any proposal in this space will require both help from newprep and
from the radext/aaa community.  Based on my past experience in emu, the
aaa community, like the rest of the IETF, can use i18n help.

Secondly, I'd like to see Kerberos considered as newprep thinks about
saslprep.  Kerberos's formal internationalization is confused and spotty
as a specification level.  At the last time that there was active work
on this within krb-wg, the plan was to use saslprep; a prior stringprep
profile was explicitly dropped in favor of saslprep.  For this reason, I
think that considering and working with the Kerberos community would be
really useful.

I'm not sure if either of these needs an explicit charter change; I
suspect the first probably does and the second may not.  However I think
these both are well within the spirit of the proposed charter.
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