Sorry, what&#x27;s ridiculous about it?  It&#x27;s a very achievable thing.  On modern CPUs with instruction support, AES encryption can be done faster than DRAM bandwidth.  There are definitely latency costs in connection setup that will penalize &quot;transaction-like&quot; protocols I guess.  It&#x27;s not 100% free, but relative to the other performance issues you&#x27;re looking at it&#x27;s surely way way way down the list of priorities.