Enable the Identity Assertion provider

The Realm Adapter Authentication provider includes an Identity Assertion provider.The Identity Assertion provider provides backward compatibility for implementations of the weblogic.security.acl.CertAuthenticator class. The identity assertion is performed on X.509 tokens. By default, the Identity Assertion provider is not enabled in the Realm Adapter Authentication provider.
To enable identity assertion in the Realm Adapter Authentication provider:

1. If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit .
2. In the left pane, select Security Realms and click on the name of the security realm.
3.  
4. Select Providers > Authentication and click the name of the RealmAdapterAuthenticator.
5. Expand Configuration > Provider Specific. 
6. Select X.509 in the Active Types: Available list box and use the arrow button to move it to the Chosen box. This step enables the use of 6.x Cert Authenticators.
   
7. Click Save.
8. To activate these changes, in the Change Center of the Administration Console, click Activate Changes.
9. 
   Not all changes take effect immediately—some require a restart