[Openid-specs-ab] LoginId hint

George Fletcher gffletch at aol.com
Wed Aug 29 18:20:04 UTC 2012

Hi John,

Are you referring to the preferred_username claim of the userinfo object 
in the Request Object?


On 8/29/12 2:12 PM, John Bradley wrote:
> At the moment we have it as part of the request object.   I think we 
> are coming to the conclusion that it is important enough to make a 
> parameter for authorization endpoint.
> John
> On 2012-08-29, at 11:27 AM, George Fletcher <gffletch at aol.com 
> <mailto:gffletch at aol.com>> wrote:
>> Hi,
>> We've run into a case where it would be nice to be able to pass into 
>> the /authorize endpoint a value to pre-fill the loginid field on the 
>> authentication UI. We allow for an id_token to be passed as a hint of 
>> the desired user, but this only works for an "already authenticated" 
>> use case.
>> If we consider the Account Chooser case where what is stored is the 
>> user's email address, it would be nice to be able to start the 
>> identity federation flow passing that email address along to the IdP.
>> Did I just miss support for this in the specs?
>> Thanks,
>> George

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