[Openid-specs-mobile-profile] Mobile Profile parameters

GONZALO FERNANDEZ RODRIGUEZ gonzalo.fernandezrodriguez at telefonica.com
Tue Apr 7 08:59:03 UTC 2015


Hi Guys,

I have been reviewing the Mobile Connect Profile doc released by the GSMA. There are some parameters in the authentication request, id_token and userinfo that have changed their use from optional to recommend or mandatory (These cases are showed in green). I don't think it is a problem to turn an optional parameter into mandatory in responses (id_token or userinfo), but I would like to highlight the cases where the spec says that the parameters are optional in the authentication request and the Mobile Profile says that they are mandatory, because I think they break the backward compatibility of the OIDC servers unless we can to differentiate the mobile profile requests from the other requests.

PARAMETER SPEC MOBILE PROFILE
-------------------         ---------------------      ------------------------
state Recommended Mandatory
nonce Recommended Mandatory
prompt Recommended Mandatory
max_age Recommended Mandatory
acr_values Recommended Mandatory

I understand that state and nonce offer and added value from the point of view of security, however I don't see the benefit of the acr_values as mandatory parameter.


Best,
Gonza.

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