We need to support the following Authentication flows
User 1 logs into Salesforce using Salesforce Credentials
User 2 logs into Salesforce using Arcot +Ping + Siteminder credentials
User 2 logs into Custom App using Arcot + Ping + Siteminder credentials
Since all the authentication methods above are SAML, I need to find a way to address home realm discovery that is a unusual "mesh" of authentication flows.
How should I set up the IDP and RPs to handle this scenario?
How would home realm discovery work?