Re: [OAUTH-WG] A question of 1.3.1. Authorization Code in rfc6749 The OAuth 2.0 Authorization Framework

The AS is independently authenticating the user and the client in separate steps.

Thus it is the AS binding that relation between user and client together ultimately in a scoped access token through a 3-leg process. 

Phil

Sent from my phone.

On 2013-01-08, at 23:18, cspzhouroc <cspzhouroc@comp.polyu.edu.hk> wrote:

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> 
> Do you mean the bounding information must be presented by the RO? The client cannot trust the RO-client bounding information that is received from AS?
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> On Tue, 8 Jan 2013 23:00:03 -0800, Phil Hunt wrote:
> 
>> The idea is to form a bridge between a user, their user-agent, and the client application while at the same time keeping the security credential and the client app cred separate. 
>> The redirect with code flow enables the separate contexts to be bound together. 
>> As soon as you do this in one step, then the client app needs to be able to handle the users credentials (eg uid/pwd) directly. Remember that one of the original reasons for the auth flow was to eliminate the password anti-pattern. 
>> 
>> Phil
>> Sent from my phone.
>> 
>> On 2013-01-08, at 22:52, cspzhouroc <cspzhouroc@comp.polyu.edu.hk> wrote:
>> 
>>> Dear Prabath:
>>> 
>>>  
>>> 
>>> But is it possible to include the the mapping between the user request and the code in the message that the AS sends to the client directly?
>>> 
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>>> 
>>> Best Regards
>>> 
>>> Brent
>>> 
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>>> 
>>> On Wed, 9 Jan 2013 12:17:19 +0530, Prabath Siriwardena wrote:
>>> 
>>> 
>>> 
>>> On Wed, Jan 9, 2013 at 12:09 PM, Peng Zhou <zpbrent@gmail.com> wrote:
>>>> Dear Prabath:
>>>> 
>>>> Thank you very much for your responses :-)
>>>> 
>>>> However, I am still not quite sure why the authorization code must be
>>>> sent to the client through the RO's user-agent?
>>> One reason I see is, bringing the authorization code via User Agent - links the user request to the authorization code. If AS directly sends the code to the Resource Server the mapping between the user request and the code is broken.
>>> Thanks & regards,
>>> -Prabath
>>>  
>>>> 
>>>> Best Regards
>>>> Brent
>>>> 
>>>> 2013/1/9 Prabath Siriwardena <prabath@wso2.com>:
>>>> > Prabath
>>> 
>>> 
>>> 
>>> -- 
>>> Thanks & Regards,
>>> Prabath
>>> Mobile : +94 71 809 6732 
>>> 
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