SSO implementation with OpenId in asp.net web forms for ADP

Require help in implementing the SSO using openid between our asp.net web application with ADP, would you please help me how we can achieve it, using the ADP connectivity, we are able to redirect to our URL including the query string values of code and state, now we have to work in our application based on the code and state and skip the login at our application, we have to pass the same connection in session from ADP to our application and consume the same connection, retrieve the token and verify that token using JWT and retrieve the user information,
any body would you please help me how we can achieve this using Auth0 OpenID Connect