[Openid-specs-mobile-profile] Backchannel sign result object

Dave Tonge dave.tonge at momentumft.co.uk
Fri Jun 16 10:57:55 UTC 2017

Hi Axel,

I don't think the authentication result object needs to be signed as it is
the response to a request by the RP that will be authenticated.
The closest we have to this in the FAPI spec is the success response when
registering a request object:
This response is not signed.

I do think the token notification object needs to be signed as this request
is made by the OP to the RP and the endpoint is currently only protected by
a bearer token. In response to your other email, the signed token
notification object could be the recommended authentication method.

Also, we discussed on the last FAPI call starting a FAPI profile of the
CIBA spec. I've started work on this and hope to share it shortly.



On 14 June 2017 at 17:42, <Axel.Nennker at telekom.de> wrote:

> Hi,
> some of you looked at the MODRNA Backchannel specification and I would
> like to get your opion on whether the backchannel result object should be
> signed by the OP?
> The issue in the MODRNA repository is: https://bitbucket.org/openid/m
> obile/issues/55/ciba-signed-result-objects
> Kind regards
> Axel
> Should we - at least - recommend that the OP signs the authentication
> result object? Here: https://xml2rfc.tools.ietf.org
> /cgi-bin/xml2rfc.cgi?Submit=Submit&format=ascii&mode=html&ty
> pe=ascii&url=https://bitbucket.org/openid/mobile/raw/tip/dra
> ft-mobile-client-initiated-backchannel-authentication.xml?
> at=default#successful_authentication_request_acknowdlegment
> and here: https://xml2rfc.tools.ietf.org/cgi-bin/xml2rfc.cgi?Submit=Su
> bmit&format=ascii&mode=html&type=ascii&url=https://bitbucket
> .org/openid/mobile/raw/tip/draft-mobile-client-initiated-bac
> kchannel-authentication.xml?at=default#issuing_successful_token
> T-Labs (Research & Innovation)
> Axel Nennker
> Winterfeldtstr. 21, 10781 Berlin
> +491702275312 (Tel.)
> E-Mail: axel.nennker at telekom.de
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Dave Tonge
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