PROPOSAL: RP identifier
dick at sxip.com
Wed Oct 18 00:06:42 PDT 2006
Motivating use cases:
1) The IdP would like to remember what the user has said a given RP
can and can't do. The IdP needs a unique identifier for the RP.
openid.realm is a wild card that could match multiple RPs.
openid.return_to is a URL that has no guarantee is being used again
by the same RP.
2) The RP would like to provide an entry point for the IdP to
discover more about the RP
3) Future extensions may want to make calls to the RP
set to the URL of the RP
openid.realm needs to match openid.rp
openid.rp needs to be contained in openid.return_to
openid.rp can take a POST that has openid_identifier=<openid
identifier>. This is equivalent to the user providing <openid
identifier> in an OpenID login form
More information about the specs