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Re: "final" RetrievalMethod

From: merlin <merlin@baltimore.ie>
Date: Mon, 28 Aug 2000 12:26:09 +0100
Message-Id: <200008281226.NAA21676@cougar.baltimore.ie>
To: Donald Eastlake 3rd <dee3@torque.pothole.com>
Cc: w3c-ietf-xmldsig@w3.org, lde008@dma.isg.mot.com

Hi,

The DTD has an 'Encoding' attribute, it should be 'Type'.

I presume that a request for a type allocation for a
raw X.509 certificate would meet with resistance?

Merlin

r/dee3@torque.pothole.com/2000.08.25/16:23:34
>
><h3>4.4.3 The <a id="sec-RetrievalMethod"
>name="sec-RetrievalMethod"><code>RetrievalMethod</code></a>
>Element</h3>
>
><p>A <code>RetrievalMethod</code> element within <code>KeyInfo</code>
>is used to convey a <u>reference</u> to <code>KeyInfo</code>
>information that is stored at <u>another</u> location. For example,
><u>several sigantures in a document might use a key verified by</u> an
>X.509v3 certificate chain <u>appearing once in the document or
>remotely outside the document</u>; each <u>signature's
><code>KeyInfo</code></u> can reference this chain using a single
><code>RetrievalMethod</code> element instead of including the entire
>chain with a sequence of <code>X509Certificate</code> elements.</p>
>
><p><u><code>RetrievalMethod</code> uses the same syntax as
><code>Reference</code> except that there is no
><code>DigestMethod</code> or <code>DigestValue</code> sub-element and
>presence of the <code>URI</code> and <code>Type</code> attributes is
>mandatory.  The referenced data is a <code>KeyInfo</code> sub-element
>type.  The <code>Type</code> attribute, as in Section 4.3.3, is a URI
>consisting of "http://www.w3.org/2000/07/xmldsig#" suffixed with a
><code>KeyInfo</code> sub-element type, such as
>"http://www.w3.org/2000/07/xmldsig#X509Data".</u></p>
>
><pre class="xml-dtd">
>   Schema Definition:
>
>   &lt;element name='RetrievalMethod'&gt; 
>     &lt;complexType content='elementOnly'&gt;
>       &lt;element ref='ds:Transforms' minOccurs='0' maxOccurs='1'/&gt; 
>       &lt;attribute name='URI' type='uriReference'/&gt; 
>       &lt;attribute name='Type' type='uriReference'/&gt; 
>     &lt;/complexType&gt;
>   &lt;/element&gt; 
></pre>
>
><pre class="xml-dtd">
>   DTD:
>
>   &lt;!ELEMENT RetrievalMethod (Transforms?) &gt;
>   &lt;!ATTLIST Type 
>             URI       CDATA   #REQUIRED
>             Encoding  CDATA   #REQUIRED &gt;
></pre>
>
>
>
>
>
Received on Monday, 28 August 2000 08:26:12 GMT

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