W3C home > Mailing lists > Public > w3c-ietf-xmldsig@w3.org > April to June 2001

Re: additional XMLDSIG URIs

From: merlin <merlin@baltimore.ie>
Date: Wed, 25 Apr 2001 10:42:56 +0100
To: "Donald E. Eastlake 3rd" <dee3@torque.pothole.com>
Cc: w3c-ietf-xmldsig@w3.org
Message-Id: <20010425094257.4381044096@yog-sothoth.ie.baltimore.com>

Hi,

Another URI I would like to propose is an XPointer
transform. When we removed support for remote
references with fragment identifiers, we lost some
useful expressivity that XPath doesn't efficiently
solve. I'd propose something very like XPath:

Algorithm=http://www.w3.org/TR/2001/WD-xptr-20010108

Obviously this is still a working draft, but we're
not producing a standards track document so we should
be able to update when it becomes a rec.

Encoded with an XPointer child element containing the
text-form pointer.

<Transform Algorithm="http://www.w3.org/TR/2001/WD-xptr-20010108">
  <XPointer>
    xpointer(id("foo")) xmlns(bar=urn:baz) xpointer(//bar:Zab[@Id="foo"])
  </XPointer>
</Transform>

Input is an octet stream (which is then parsed into
XML document by the transform). If the input is a
node set then it is c14n'ed.

Output is a node set; the results of the XPointer
are processed as defined in the XMLDSIG spec for a
same-document XPointer.

Merlin


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Received on Wednesday, 25 April 2001 05:43:43 GMT

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