[OpenID] An OpenID "mobile" Hint?

[Johannes Ernst]

On 2008/06/05, at 0:03, Martin Atkins wrote:

> Maybe I'm misunderstanding what you're looking at here, but surely
> anything that the RP can "see" to determine whether you're on a mobile
> device can also be seen by the OP? They're both just websites, after  
> all.

The scenario is that I have a preferred OP on the PC-class device that  
I like because, say, it has a hardware device attached to it for  
security purposes.

Now I'd like to log on, with the same identifier, from my iPhone that  
does not have the same hardware device attached: I will be redirected  
to the OP that then cannot authenticate me.

It would be better to say "I'd like OP1, but only for PCs, and OP2 for  
iPhones, ..." all somehow expressed in the XRDS file so the RP could  
do the redirect to the right OP based on which device I'm using, all  
while using the same identifier.

Of course, an OP that supports all devices and all the right  
authentication techniques appropriate for each device would be better.  
But that's a hard thing to do given how many possible combinations  
there are.




Johannes Ernst
NetMesh Inc.


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