Bukkit/CraftBukkit — pull request #829 by pdelvo (2012-08-02 20:14:14+00:00)
Title: Added network traffic encryption flag 

Added a config entry to optionally disable encryption of the Network traffic. vanilla client will not work if encryption is disabled, but it is great for minecraft proxy servers. with disabling the encryption between bukkit server and proxy server cpu usage can be reduced on both sides. It should not be in the default bukkit.yml, because it is not usefull for most of the Server owners.