The applet is signed by Rick Perry, perry@misty.com, using a certificate issued by RP Consulting.
The RP Consulting authority certificate may be obtained from fog.misty.com/cacert.crt.
If you want to allow your Java installation to recognize the signature, you can add the RP Consulting authority certificate to your java/jre cacerts file as follows:
Download/save fog.misty.com/cacert.crt to file cacert.crt
Run:
bin/keytool -import -trustcacerts -alias RPC -file cacert.crt -keystore lib/security/cacerts -storepass changeit