<wsp:Policy xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy" 
   xmlns:sp="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy">
    <wsp:ExactlyOne>
        <wsp:All>
            <sp:EndorsingSupportingTokens>
                <wsp:Policy>
                    <sp:KerberosToken sp:IncludeToken="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy/IncludeToken/Once">
                        <wsp:Policy>
                            <sp:WssKerberosV5ApReqToken11 />
                            <sp:RequireKeyIdentifierReference />
                        </wsp:Policy>
                    </sp:KerberosToken>
                </wsp:Policy>
            </sp:EndorsingSupportingTokens>
        </wsp:All>
    </wsp:ExactlyOne>
</wsp:Policy>