Does this require an extension?  That seems something easy to overload on scope.



________________________________
 From: Paul Madsen <paul.mad...@gmail.com>
To: "Richer, Justin P." <jric...@mitre.org> 
Cc: OAuth WG <oauth@ietf.org> 
Sent: Tuesday, January 17, 2012 5:23 AM
Subject: Re: [OAUTH-WG] Access Token Response without expires_in
 

Separate from the question posed here, we are seeing customer demand for 
one-time semantics, but agree with Justin that this would best belong in a 
dedicated extension parameter and not the default 

paul

On 1/16/12 10:29 PM, Richer, Justin P. wrote: 
I think #3. #1 will be a common instance, and #2 (or its variant, a limited 
number of uses) is a different expiration pattern than time that would want to 
have its own expiration parameter name. I haven't seen enough concrete use of 
this pattern to warrant its own extension though.  Which is why I vote #3 - 
it's a configuration issue. Perhaps we should rather say that the AS "SHOULD 
document the token behavior in the absence of this parameter, which may include 
the token not expiring until explicitly revoked, expiring after a set number of 
uses, or other expiration behavior." That's a lot of words here though. -- 
Justin On Jan 16, 2012, at 1:53 PM, Eran Hammer wrote: 
>A question came up about the access token expiration when expires_in is not 
>included in the response. This should probably be made clearer in the spec. 
>The three options are: 1. Does not expire (but can be revoked)
2. Single use token
3. Defaults to whatever the authorization server decides and until revoked #3 
is the assumed answer given the WG history. I'll note that in the spec, but 
wanted to make sure this is the explicit WG consensus. EHL 
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