[sr-dev] Generating a crypto random key in Kamailio

Hello, For outbound I currently have a modparam to set the flow token key. There is absolutely no reason why this should be user configurable, replicated across multiple Kamailio instances, or survive Kamailio restart as each flow is unique and should be re-established if there is a server failure. I would much prefer to have Kamailio just select its own key at start-up. Is there any simple way to get Kamailio to select a 20-octet crypto random string? Regards, Peter