Adding IDP Initiated flow with custom claims, OIDC Login to Entra ID and then signing and encryptiing the final outcome.

[plambrechtsen]

An B2C Sample with some dependent but it sits along and doesn't have any dependant base poliicy

• The preferred_username aka the email address of the user in Entra ID
• Redirect directly to Entra ID to login or SSO for seamless login journey.
• Pass Entra ID Groups assigned to registered app granting access to B2C to check group membership.
• Able to support an optional custom claim that could be passed as a query parameter
• To be signed by a PFX private key that was uploaded as a Policy Key that is trusted by the SP AssertionConsumerService
• To be encrypted by a Public Key provided by the SP AssertionConsumerService