[Openid-specs-mobile-profile] Comments about CIBA Draft
charles.marais at orange.com
charles.marais at orange.com
Wed Apr 19 08:49:21 UTC 2017
Hi,
We would like to share with you some of our concerns about CIBA as it
may be soon accepted at the end of the current implementer's draft period :
- The end-to-end use cases addressed by CIBA are still unclear for us.
We do understand the necessity to have a specification allowing the
retrieval of an OAuth 2.0 access_token in a back channel mode but we
don't have in mind end-to-end use cases that require the delivery of an
id_token in pure back channel mode. @John,Joerg : Did you have time to
think about Use Cases for CIBA ?
- On a security point of view, we think that we missed something. With
the current specification, it seems to be possible to register a bad
client interested by the polling mode with a legitimate client's
sector_identifier_uri and even redirect_uri. In this way, the bad client
will receive a sub dedicated for the legitimate client.
- GSMA is already working on an evolution of CIBA allowing synchronous
responses. In their mind (GSMA), they want to address use cases in which
the OP doesn't authenticate the user. It could maybe be relevant to
include this evolution in the current specification.
Thanks for your opinions on these aspects,
Br,
The Orange Team.
--
*MARAIS Charles *
*Orange Labs Lannion*
Tel : +33 (0)2 96 07 24 18
charles.marais at orange.com <mailto:charles.marais at orange.com>
Orange Labs Lannion
2, avenue Pierre Marzin
22307 LANNION Cedex - France
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