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Subject: Re: [provision] FW: Base SPML on SAML rather than DSML?


  SAML (so far) doesn't have a protocol for updating attributes, just acquiring them (issue an attribute request, get an attribute assertion back). You could devise a protocol where a requestor instead submitted an attribute assertion (as a request to update/add an attribute), but there is no support for that as a protocol in SAML: is the assertion an add or an update, what should the response of the receiver be, etc.

  Caveat: I haven't followed the SAML list much for the past couple of months.

Rob


Gavenraj Sodhi wrote:

fyi...

-----Original Message-----
From: DeSouza, Edwin [mailto:edesouza@jamcracker.com]
Sent: Monday, July 29, 2002 6:25 PM
To: Gavenraj Sodhi; Darran.Rolls@waveset.com
Cc: hal.lockhart@entegrity.com; tim.moses@entrust.com;
pmishra@netegrity.com; Jeff.Hodges@sun.com; eve.maler@sun.com;
pbaker@verisign.com
Subject: Base SPML on SAML rather than DSML?


Darran, Gavenraj,
I see a lot of discussion on using DSML as the basis for SPML. 
http://lists.oasis-open.org/archives/provision/200207/maillist.html

DSML is one possible starting point (Directories keep User Profiles, etc
--AND-- DSML is supposed to make directories talk to each other).

On the other hand, SAML is supposed to be able to transport all kinds of
"interesting" user profile info among various
sites/companies/applications/etc.  And, given that Project Liberty is
using SAML, and maybe WS-Security will be friendly to SAML, then in all
likelihood SAML will have a much more widespead usage than DSML.

That being the case ... it would be interesting to think about using
SAML as the basis for SPML.

Maybe someone more technical/knowledgeable than me can start a
discussion on this at SPML.

bye,
Edwin.

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