The roadwarrior <b>carol</b> and the gateway <b>moon</b> use the <b>openssl</b>
-plugin based on the <b>OpenSSL</b> library for all cryptographical functions
-whereas roadwarrior <b>dave</b> uses the default <b>strongSwan</b> cryptographical
-plugins <b>aes des sha1 sha2 md5 gmp</b>.
+plugin based on the <b>OpenSSL</b> library for all cryptographical and X.509 certificate
+functions whereas roadwarrior <b>dave</b> uses the default <b>strongSwan</b> cryptographical
+plugins <b>aes des sha1 sha2 md5 gmp</b> and <b>x509</b>.
<p>
The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each
to gateway <b>moon</b>. The authentication is based on <b>X.509 certificates</b>.