[OpenID] XRI for OP Identifier?

[Drummond Reed]

Jean-Noel,

OPs that are identified with XRIs have CanonicalIDs just like users that are
identified with XRIs. The same rule applies -- the user can enter a simple,
human-friendly i-name for the OP, and the XRDS document will provide the
CanonicalID for the OP.

Following is the XRDS for the OP I use (@2idi) for =drummond. You can see
that @2idi has the CanonicalID @!E5E4.83AC.F494.8CE4.

<XRDS ref="xri://@2idi">
   <XRD version="2.0">
	<Query>*2idi</Query>
	<Status ceid="off" cid="verified" code="100"/>
	<Expires>2008-04-24T16:43:09.000Z</Expires>
	<ProviderID>xri://@</ProviderID>
	<LocalID priority="10">!E5E4.83AC.F494.8CE4</LocalID>
	<CanonicalID priority="10">@!E5E4.83AC.F494.8CE4</CanonicalID>
	<Service priority="10">
		<Type>xri://$res*auth*($v*2.0)</Type>
		<URI
priority="1">http://xria.authn.info/@livingdirectory/</URI>
	</Service>
	<Service priority="10">
		<Type select="true">http://openid.net/signon/1.0</Type>
		<URI append="none"
priority="1">https://2idi.com/openid/</URI>
		<URI append="none"
priority="2">http://2idi.com/openid/</URI>
	</Service>
	<Service priority="10">
		<Type match="default"/>
		<Type
select="true">xri://+i-service*(+contact)*($v*1.0)</Type>
		<Path select="true">(+contact)</Path>
		<Path match="null"/>
		<URI append="qxri"
priority="1">http://2idi.com/contact/</URI>
	</Service>
   </XRD>
</XRDS>

=Drummond 

> -----Original Message-----
> From: general-bounces at openid.net [mailto:general-bounces at openid.net] On
> Behalf Of Jean-Noel Colin
> Sent: Thursday, April 24, 2008 2:34 AM
> To: general at openid.net
> Subject: [OpenID] XRI for OP Identifier?
> 
> Hi
> 
> I have a question regarding the use of XRI as OP Identifier. The specs
> (2.0) mention that whenever an XRI is used as the (user-supplied)
> Identifier, the XRDS document retrieved MUST include a canonicalId,
> which is to be used as the claimed identifier.
> 
> As a consequence, this means that XRI can not be used as OP
> Identifier, otherwise, what would be the value of the canonicalId? So
> does this mean that OP Identifier can only be URI that are resolvable
> using Yadis (since HTML Resolution is only allowed for user
> Identifiers)?
> 
> Thanks for clarifying this
> 
> Best regards
> 
> Jean-Noel Colin
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