Start with the PingFederate.NET Integration Kit User Guide -
https://documentation.pingidentity.com/display/NETIK251/Processing+Overview
For the SP-Init SSO, your application will be redirected to your (SP) PingFederate Server, which generates AuthnRequest for IDP. IDP authenticates the user and sends the response back to your PF (SP). Your SP checks the message and displays the user information in the SP OpenToken Adapter. Then the OTK adapter will generate OTK and send it through the browser to your application for verification / use using our .NET API for OpenToken.
Alternatively, you can check out the PingOne Application Provider Services (APS), which is the Ping OnDemand solution. There is no software installed and no RESTful API to integrate your .NET application. However, I'm not sure if your application connects to 2 different client IDPs or to two internal internal IDPs.
NTN, Yang
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