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SAML Single Sign-On (SSO) For ASP.NET Web Applications Using OneLogin As IDP

ASP.NET SAML SP Single Sign-On (SSO) module gives the ability to enable SAML 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 SAML compliant Identity providers. Here we will go through a step-by-step guide to configure Single Sign-On (SSO) between ASP.NET and OneLogin considering OneLogin as IdP.

Download And Extract Package

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

Step 1: Add module in your application

  • Add miniorange-saml-sso.dll in the bin folder (where your other DLL files exist) for your application.
  • Register miniorangesamlsso module in your application according to the provided steps in the integration.md file.
  • Add the provided configuration file saml.config in the root directory for your application.
  • After integration open browser and browse the module dashboard with URL below:
      • https://<your-application-base-url>?ssoaction=config
  • If it pops up the registration page or login page, you have successfully added the miniOrange saml sso module for your application.

    • ASP.NET Onelogin SAML SSO - login page
  • Register or Login for configuring the module.

Step 2: Configure OneLogin as Identity Provider

Follow the steps below to configure OneLogin as IdP

miniorange img   Configure OneLogin as IdP

  • In the miniOrange ASP.NET SAML SSO Module, navigate to Service Provider Settings section. Here, you can find the SP metadata such as SP Entity ID and ACS (AssertionConsumerService) URL which are required to configure the Identity Provider.
    • ASP.NET Onelogin SAML SSO - upload metadata
  • Go to https:// <your_domain>.onelogin.com and login into OneLogin.
  • Log into OneLogin as an Administrator and go to Apps Company Apps Add Apps from the Navbar.
    • ASP.NET Onelogin SAML SSO - add_application-OneLogin
  • In the search box, type SAML Test Connector (SP) and click on the App to add it.
    • ASP.NET Onelogin SAML SSO - Search_app-OneLogin
  • Enter the display name and click Save.
  • In General Settings, enter App Name and click on Next.
  • After saving, go to Configuration Tab and enter the following:
    • ASP.NET Onelogin SAML SSO - App_configuration-OneLogin
    ACS (Consumer) URL Validator ACS (Assertion Consumer Service) URL from Step2 of the plugin under Identity provider settings Tab.
    ACS (Consumer) URL ACS (Assertion Consumer Service) URLfrom Step2 of the plugin under Identity provider settings Tab.
    Single Logout URL Enter Single Logout URL from the Identity Provider Settings tab of the module.
  • Click on Save.

miniorange img   Assigning Groups/People

  • Go to SSO tab. Note down the URL/Endpoints. These will be required while configuring the plugin.
    • ASP.NET Onelogin SAML SSO - Enable SAML SSO-OneLogin ASP.NET Onelogin SAML SSO - Add Certificate_X.509-OneLogin
  • You have now successfully configured OneLogin as IDP

Step 3: Configure ASP.NET SAML Module as Service Provider

  • After configuring your Identity Provider, it will provide you with IDP Entity ID, IDP Single Sign On URL and x.509 Certificate. Configure these values under IDP Entity ID, Single Sign-On Url and SAML X509 Certificate fields respectively. (Refer to the Metadata provided by Identity Provider)
  • Click Save to Save your IDP details.
    • ASP.NET Onelogin SAML SSO - idp settings

Step 4: Test Configuration

  • Click on the Test Configuration button to test the configuration.
    • ASP.NET Onelogin SAML SSO - test configuration settings

Step 5: Attribute Mapping

  • After testing the configuration, Map your application attributes with the Identity Provider (IdP) attributes.
  • Note: All the mapped attributes will be stored in the session so that you can access them in your application.
    • ASP.NET Onelogin SAML SSO - attribute mapping

Step 6: Integration Code

  • You can also find the Integration code in the Integration Code tab in the module. Just copy-paste that code snippet wherever you want to access the user attributes.
  • Note: All the mapped attributes will be stored in the session so that you can access them in your application.
    • ASP.NET Onelogin SAML SSO - integration code

Step 7: Login Settings

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

Step 8: Logout Settings

  • Use the following URL as a link in your application from where you want to perform SLO:
  • https://<your-application-base-url>/?ssoaction=logout
  • For example you can use it as:
  • <a href="https://<your-application-base-url>/?ssoaction=logout">Logout</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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