On 13 Dec 2010, at 11:46, Simon Tennant (buddycloud) wrote:

On 13/12/2010 12:39, Christoph Terwelp wrote:
XEP-0070 doesn't solve this problem because it only handles authentication of a client to a server. Here a authentication at the xmpp server itself is required but without showing the users id and password to an intermediate web server. Something similar is done for example in "Remember the milk" where you can manage external websites and clients and their access rights to your account.
Right - it's the intermediate websites asking for users' password that worries me.

I'm not so keen on $RANDOM-WEBSITE asking for buddycloud user's passwords. But I see no solution.

The Enterprise SSO market has a number of solutions for this problem. Systems like Cosign, WebAuth and Shibboleth allow credentials to be entered at a single, secure location, and then redirect the user back to the intermediate website.

S.

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