C:\Windows\system32>winrm get winrm/config/service/auth
Auth
    Basic = true [Source="GPO"]
    Kerberos = true
    Negotiate = true
    Certificate = false
    CredSSP = false
    CbtHardeningLevel = Relaxed

C:\Windows\system32>winrm get winrm/config/client/auth
Auth
    Basic = true [Source="GPO"]
    Digest = true
    Kerberos = true
    Negotiate = true
    Certificate = true
    CredSSP = false