<?xml version='1.0' encoding='utf-8'?>

<OPCUAClient xmlns:xsd="http://www.w3.org/2001/XMLSchema">

<AuthType>

<x509 Certificate="my_cert.der" PrivateKey="my_private_key.pem">

<Policy/>

<Mode/>

</x509>

</AuthType>

</OPCUAClient>