G'day Andrew,

You need not be unduly concerned about the difference between UDP and
TCP, since the extra hop of the WebSocket server will more than cover
the difference.  Players will be at a slight disadvantage, but now that
everybody has fibre to the home, it won't be a problem.  New players
won't notice.  Old players won't want to change.  It's a non-issue.
Don't let it stop you.

You also need not be worried about RSA verification.  No server requires
it.  The server source does not include RSA support.  Several clients
already exist without RSA support.

So go for it.  Looking forward to your first implementation.  You should
post back here once you have something for people to test.

James Cameron