This is a remote-access scenario with two roadwarriors <b>carol</b> and <b>dave</b>
setting up a connection each to the VPN gateway <b>moon</b>. Authentication is
based on strong X.509 certificates with SHA-2 signatures.
The X.509 certificate of the gateway <b>moon</b> uses a <b>SHA-256</b> hash in
its signature whereas the certificates of the roadwarriors <b>carol</b>
and <b>dave</b> use <b>SHA-384</b> and <b>SHA-512</b>, respectively.