Add claim value “MSISDN”. This value is defined in OpenID Connect MODRNA Authentication Profile as “The Subscriber identifier formated according to ITU-T recommendation [E.164]”.
@Bjorn Hjelm why do you think this should be added in OIDC4IDA and not MODRNA?
As stated in the issue, the MSISDN is already defined in the MODRNA Authentication profile and as “telephone number uniquely identifying a subscription in a mobile network.” This attribute (or claim) is often request by RPs to be validated. Is there a reason why it shouldn’t be part of the OpenID Connect for Identity Assurance spec.?
Basically, any claim can be used with OIDC4IDA including all claims defined in other specs.
As stated, the proposal was to add the MSISDN as a claim using the definition in MODRNA. Now, we can always rely on the OpenID Connect Core standard claim “phone_number” and the RP will receive a ‘a phone number’ in the response but it may or not be a mobile phone number which is what RPs are commonly asking for. I thought this would be an enhancement (given the requests that MNOs receive) but if that view isn’t shared then we can default to the OpenID Connect Core standard claim.