Hi Igor, I'd agree it seems duplicated on first look.

The 'mail retrieving agent' (MRA) should only need the link(URI) to the resource, once the MRA makes the 'RPT-less' resource request it will be returned a fresh ticket and the location of the UMA AS (through WWW-Authenticate)

Best,
- Alec

Alec Laws


On Mon, Mar 22, 2021 at 1:03 PM Igor Zboran <izboran@gmail.com> wrote:
Hmm, it seems to me that the resource id / ticket are in this grant redundant. Am I right?

-Igor

On Mon, Mar 22, 2021 at 1:28 PM Igor Zboran <izboran@gmail.com> wrote:
Hi all,

The UMA Authorization Code Grant defines a mechanism for user-to-user (sender-to-recipient) delegation of access. Figure 1 provides the schematic flow for the UMA Authorization Code Grant by which the sender (Resource Owner) delegates the Requesting Party Client to access the sender's resources on behalf of the recipient.

image.png
         Figure 1.


Regards

-Igor
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