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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Is the goal of openid_+ OAUTH considered to be: solve the
problem of how can openid perform key management between AC and a __user’s__
authorized sets of SPs (using key distribution to explicitly authorize those particular
SPs to distribute the user data to an AC)? <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If so, there does seem to be the opportunity to repurpose the pairwise
Yahoo-style directed-id pseudonym, as a “group shared secret”
between several RPs ( 1 AC and certain SPs (acting under the authorization of a
specific user to provide data to the AC))<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If anyone wants to collaborate writing this up in private let me
know. I’d like to first make SAML assertions and SAML websso protocols perform
this role with OAUTH, before judging if there then will to make OpeniD Auth replace
SAML2. SAML has mature support for persistent identifiers that can be shared
across RP affiliation communities. If it turns out that name-federations can indeed
drive OAUTH key management in a UCI environment, then one can see about uses
the PAPE signal between OAUTH-SPs and the OP serve as an affiliation group tag –
one that controls how directed-id can repurpose ClaimedID pseudonyms as a means
of distributing/revoking group authZ keys/capabilities of the kind that the OAUTH
community seem to actually use.<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I spent the day studying how SAML does RP affiliations, by
tagging the request to its OP with a community tag – trying to
conceive of how it would best apply to the downstream network of AC->SPs.
This would influence how the likes of Yahoo should be handling their generation
of the pseudonyms. If an AC has a co-resident OpeniD RP module, I can see how
the affiliation tag (which implies the OP would use a common pseudonym across
the affiliation members) should be able to bind ACs to particular SPs in its
affiliation group. Now I know Pat is experimenting with a different direction
(using OpenID assertions to distribute public keys). I suspect the minting of
an affiliation-common pseudonym by an OP would make for a rather better
password-distribution mechanism between an AC and the USERS set of SP data
source, given the culture of OAUTH today. But, who know!<o:p></o:p></span></p>
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