Should this experimental namespace only apply to work being done by
OpenID working groups? I'm very supportive of pushing the standards
forward via prototypes, but that should be done as part of the OpenID
community instead of by a single company.
I'd be very happy to help get a discovery working group spun up and
charter them to modernize OpenID 2.0's discovery process.
--David
On Jul 10, 2009, at 11:58 AM, George Fletcher wrote:
+1 to http://experimental.openid.net
It would be good to add this to the "repository" work Breno and John
are doing as having a registry for experimental URIs would be good
as well.
Thanks,
George
Dirk Balfanz wrote:
[+gene...@openid.net <mailto:gene...@openid.net> for a broader
audience]
On Thu, Jul 9, 2009 at 4:45 PM, Dirk Balfanz <balf...@google.com <mailto:balf...@google.com
>> wrote:
Hi guys,
Google would like to launch a feature in which we're allowing our
Google Apps hosted domains to become OpenID providers. The
authentication part of it is pretty simple - Google is already
logging in users to their apps, so we can also host an OP endpoint
for those domains and send assertions back to Relying Parties.
What is more difficult is the discovery part. We have been working
with the XRI TC to define a XRD-based discovery protocol that
would allow this kind of hosting of discovery documents on behalf
of our customers.
We believe that providing proof-of-concept implementations drives
standardization processes forward, so in this spirit we want to
launch this feature in the near future, using a discovery protocol
that as far as we can tell meets all the requirements of what the
XRI TC is currently converging on, but which has not been vetted
as an official standard (it's a chicken and egg thing - without
PoC no standards, without standards by definition no
standards-compliant implementations).
While we were tossing around ideas <http://markmail.org/message/ixc5led2lobdwij2
>in the
standardization committees we just used random identifiers for new
XML namespaces, etc. that we would need for this discovery
protocol. Now that we're about to launch we need to decide what to
call these things. We would like to use a namespace
in http://specs.openid.net/... because we want this kind of
discovery protocol to be part of OpenID, but we can't really use
them because we don't have a next-generation discovery protocol
yet.
So what should we use? How
about http://experimental.openid.net/... ? That way, Relying
Parties know that what we're trying to do is be a part of the
OpenID community and bring the protocol forward. On the other
hand, this would also be a signal to the RP that they're using a
feature that has not been vetted as a standard yet.
For example, a discovery document for a domain balfanz.net
<http://balfanz.net> at Google might look like this (notice the
"experimental" namespace and the XML elements using it):
<?xml version="1.0" encoding="UTF-8"?>
<xrds:XRDS xmlns:xrds="xri://$xrds" xmlns="xri://$xrd*($v*2.0)">
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#";>
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://docs.oasis-open.org/xri/xrd/2009/01#canonicalize-raw-octets
" />
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1
" />
</ds:SignedInfo>
<ds:KeyInfo>
<ds:X509Data>
<ds:X509Certificate>
MIICgjCCA...
</ds:X509Certificate>
<ds:X509Certificate>
MIICsDCCAhmgAwIB...
</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</ds:Signature>
<XRD>
<CanonicalID>balfanz.net <http://balfanz.net></CanonicalID>
<Service priority="0">
<Type>http://specs.openid.net/auth/2.0/server</Type>
<Type>http://openid.net/srv/ax/1.0</Type>
<Type>http://specs.openid.net/extensions/pape/1.0</Type>
<URI>https://www.google.com/a/balfanz.net/o8/ud?be=o8</URI>
</Service>
<Service priority="0" xmlns:experimental="http://experimental.openid.net/google/2009/07/xmlns/
">
<Type>http://www.iana.org/assignments/relation/describedby</
Type>
<MediaType>application/xrds+xml</MediaType>
<experimental:URITemplate>https://www.google.com/accounts/o8/user-xrds?uri=
{%uri}
<https://www.google.com/accounts/o8/user-xrds?uri=%7B%uri%7D></
experimental:URITemplate>
<experimental:NextAuthority>hosted-id.google.com
<http://hosted-id.google.com></experimental:NextAuthority>
</Service>
</XRD>
</xrds:XRDS>
What do you guys think?
Dirk.
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