OAuth Single Sign-On (SSO) For ASP.NET Web Applications Using Identityserver3 As OAuth Provider

ASP.NET OAuth Single Sign-On (SSO) module gives the ability to enable OAuth Single Sign-On for your ASP.NET applications. Using Single Sign-On you can use only one password to access your ASP.NET application and services. Our module is compatible with all the OAuth compliant Identity providers. Here we will go through a step-by-step guide to configure Single Sign-On (SSO) between ASP.NET and IdentityServer3 as OAuth Provider.

Download And Extract Package

  • Download miniOrange ASP.NET OAuth 2.0 Module.
  • For Setting up the connector, extract the asp-net-oauth-sso-module.zip, you will find a DLL file miniorange-oauth-sso.dll, a configuration file oauthsso.config and a integration.md file which contain the steps for adding the module into your application.

Step 1: Add the connector in your application

  • Add miniorange-oauth-sso.dll in bin folder (where your other DLL files exists) for your application.
  • Register miniorangeoauthsso module in your application according to the provided steps in the integration.md file.
  • Add the provided configuration file oauthsso.config in the root directory for your application.
  • After integration open browser and browse the connector dashboard with URL below:
    https:// <your-application-base-url>/?ssoaction=config
  • If it pop up the registration page or login page, you have successfully added the miniOrange oauth sso connector for your application.
  • ASP.NET Auth0 SSO - register with miniorange
  • Register or Login for configuring the connector.

Step 2: Setup IdentityServer3 as OAuth Provider

  • Set up IdentityServer3 using guidelines provided here.
  • From Configure OAuth tab in Oauth Client plugin, collect Redirect/Callback URL and enter it into your IdentityServer3.
  • Copy your Client ID and Client Secret and save it on your miniOrange ASP.NET OAuth Client Configuration.
  • You have successfully completed your IdentityServer3 OAuth Server side configurations.
  • IdentityServer3 Endpoints and Scope:


    Client ID : Click Here
    Client Secret : Click Here
    Scope: openid
    Authorize Endpoint: https://<your-domain>/connect/authorize
    Access Token Endpoint: https://<your-domain>/connect/token
    Get User Info Endpoint: https://<your-domain>/connect/userinfo
    Custom redirect URL after logout:[optional] : https://<your-domain>/connect/endsession?id_token_hint=##id_token##

Step 3: Configure miniOrange ASP.NET OAuth Client

  • After configuring your OAuth Provider, it will provide you with Client ID, Client Secret, Authorize Endpoint, Access Token Endpoint and Get User Info Endpoint. Configure these values under respective fields.
  • Fill all the required details and click on Save Configuration.
  • ASP.NET Auth0 SSO - Oauth configuration

Step 3: Test Configuration

  • After saving configuration, click on the Test Configuration button to verify if you have configured correctly.
  • On successful configuration, you will get Attributes Name and Attribute Values on Test Configuration window. The below screenshot shows a successful result.
  • ASP.NET Auth0 SSO - test configuration

Step 4: Attribute Mapping

  • Map Attribute Names provided by your OAuth Server with your ASP.NET application Attributes given under Attribute Mapping Section and click on Save Attribute Mapping.
  • ASP.NET Auth0 OAuth SSO - attribute mapping
  • Note: All the mapped attributes will be stored in the session so that you can access them in your application.

Step 5: Integration Code

  • You can find the integration code in Integration Code tab in the connector. Just copy-paste that code snippet wherever you want to access the user attributes.
  • ASP.NET Auth0 SSO - integration code

Step 6: Add following link in your application for Single Sign-On (SSO)

  • Use the following URL as a link in your application from where you want to perform SSO:
    http://base-url/?ssoaction=login
  • For example you can use it as:
    <a href="http://base-url/?ssoaction=login”>Log in</a>"

    You can configure the ASP.NET SAML 2.0 Single Sign-On (SSO) module with any Identity Provider such as ADFS, Azure AD, Bitium, Centrify, G Suite, JBoss Keycloak, Okta, OneLogin, Salesforce, AWS Cognito, OpenAM, Oracle, PingFederate, PingOne, RSA SecureID, Shibboleth-2, Shibboleth-3, SimpleSAML, WSO2 or even with your own custom identity provider.

Application LINK
SAML SSO into DotNetNuke (DNN) site Click here
SAML SSO into SiteFinity site Click here
SAML SSO into Umbraco site Click here
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