You can active Claim Based Authentication for a SharePoint Web App afterwards if you missed that at creation time.
Use this PowerShell script:
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue [System.Reflection.Assembly]::LoadFile($Env:CommonProgramFiles+"Microsoft SharedWeb Server Extensions14ISAPIMicrosoft.SharePoint.dll") | out-null $webapp = Get-SPWebApplication "http://<sharepoint server>/" write-host "Current: " $webapp.UseClaimsAuthentication $webapp.UseClaimsAuthentication = $true $webapp.Update() $webapp.ProvisionGlobally() write-host " New: " $webapp.UseClaimsAuthentication