The second paragraph of https://tools.ietf.org/html/draft-ietf-oauth-proof-of-possession-03#section-3 now provides a more general description of ways that applications may choose to identify the presenter, including use of the “azp” (authorized party) claim.
-- Mike From: OAuth [mailto:oauth-boun...@ietf.org] On Behalf Of Nat Sakimura Sent: Monday, March 23, 2015 12:25 AM To: oauth Subject: [OAUTH-WG] The use of sub in POP-02 Re: https://tools.ietf.org/html/draft-ietf-oauth-proof-of-possession-02#section-3 I understand the use of sub in this section comes down from SAML but I feel that some separation between sub and presenter would be nice. For example, when I am presenting the token using an app that I installed on my iPhone, the presenter is that app and not me, while the sub still may be me. The app is the authorized presenter/party (azp) of the token. So my proposal is to use a claim like "azp" instead of "sub" to identify the presenter. Less overload would cause less confusion later, IMHO. -- Nat Sakimura (=nat) Chairman, OpenID Foundation http://nat.sakimura.org/ @_nat_en
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