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1. Start the WSO2 IS server and login to the management console.
2. Click Add under Service Providers on the Main tab. Enter a service provider name and click Register. 
   Since the service provider is for the WSO2 Identity Server itself, in this tutorial the service provider is referred to as 'self'. 
   
3. Expand Inbound Authentication Configuration>SAML2 Web SSO Configuration and click Configure. 
4. Select Manual Configuration and enter the following details. Click Register. 
   
   1. Issuer - carbonServer
   2. Assertion Consumer URLs - https://localhost:9443/acs
   3. Enable Response Signing - true
   
5. Expand Local and Outbound Authentication Configuration and select Advanced Configuration to configure multi-factor authentication. 
   There are two types of multi-factor authentication that you can configure here. 
   • Multi-option authentication: This can be configured by clicking Add Authenticator. Clicking this again will enable you to create another authentication option. These can be either local or federated authenticators.
   • Multi-step authentication: This is configured by clicking Add Authentication Step. Clicking this again will enable you to create another authentication step. These can be either local or federated authenticators.
   

6. Click Add Authenticator to add a Local Authenticator. You can choose the type of authenticator using the dropdown. Clicking Add Authenticator again will enable you to add a second local authenticator and configure multi-option authentication using two local authenticators. Alternatively, you can click Add Authentication Step and configure a Local Authenticator in one step by selecting the local authenticator from the dropdown and clicking Add Authenticator. You can do the same for the second step.
   
   As an example for this scenario, basic and fido are used as the two authenticators. Basic authentication allows you to authenticate users from the enterprise user store while FIDO authenticates you externally.

   Tip
   If you are adding FIDO as an authenticator, see Multi-factor Authentication using FIDO for more information and follow the instructions given in the topic to configure it.

   

7. Select whether this is a Subject Step, Attribute StepSelect Use subject identifier from this step, Use attributes from this step or both. In the case of multiple steps, you can have only one step as the subject step and one as the attribute step.
8. Click the Update button. 
9. This navigates you to the previous screen with your newly configured authentication steps. Click Update again to save changes. 
10. Shutdown WSO2 IS and open the authenticators.xml file found in the <IS_HOME>/repository/conf/security folder.

11. Enable the SAML2SSOAuthenticator by changing the disabled parameter to false. 

    Code Block
    <Authenticator name="SAML2SSOAuthenticator" disabled="false">

12. Change the value of the <Priority> property found under the SAML2SSOAuthenticator to 1. 

    Code Block
    <Priority>1</Priority>

13. Save and close the authenticators.xml file. 

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