Richard,

> This authentication has to happen during the delegation dance to make
> sure that it's the real Consumer who gets the access token, and for
> every access request to make sure that the real Consumer can't hand
> off the access token to other consumers.

Is there really a requirement to make sure a Consumer can't hand off the access 
token?

Of course, neither the Service nor the User can prevent the Consumer handing 
off the access token and Consumer credentials to another party.


I am particularly interested as I believe request signing would be 
significantly improved if it only used the access token (and not the Consumer 
credentials). The Consumer is implied as they were authenticated when the 
access token was issued.


James Manger
[email protected]
Identity and security team — Chief Technology Office — Telstra


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