Re: [xml] c14n - UNICODE normalization
- From: Tres Seaver <tseaver zope com>
- To: Rich Salz <rsalz datapower com>
- Cc: Peter Jacobi <pj walter-graphtek com>, "xml gnome org" <xml gnome org>
- Subject: Re: [xml] c14n - UNICODE normalization
- Date: 03 Jun 2003 09:58:54 -0400
On Tue, 2003-06-03 at 08:38, Rich Salz wrote:
If I'm not mistaken, the c14n.c doesn't handle UNICODE normalization.
I'm not sure what Unicode normalization is, but you're probably right. :)
The code in c14n (and exc-c14n) implement canonicalization useful for
XML Digital signatures. See http://www.w3.org/Signature for details.
It should be possible to use the normalization code from IBM's ITU
(http://www-124.ibm.com/icu/index.html), as it's under the
X License, but the ITU codebase is rather huge and I don't know
how easy it would be to extract a small normalization module.
I seem to recall some postings on xml-dev that a couple of folks tried
to do this and failed. It's apparently not really feasible to take
"just a piece" of ICU.
Zope3 does this. You are right, it is the classic "take a sip from a
spitoon" problem.
Tres.
--
===============================================================
Tres Seaver tseaver zope com
Zope Corporation "Zope Dealers" http://www.zope.com
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