If you get this error:

Error: There is a problem with your certificate request
java.io.IOException: exception encrypting data - java.security.InvalidKeyException: Illegal key size

Please go back and try again

You need to install the JCE Unlimited Strength Jurisdiction Policy Files.

You will also need to delete the intCAKeys.p12 in /opt/WiKID/private:

# rm /opt/WiKID/private/intCAKeys.p12

Then restart WiKID.