SSL was implemented long time ago for mining already but was removed again due to the increased network lag.
Lags can only create a pool if it spends a lot of time to encrypt/decrypt data, am I correct?
SSL connection is based on same sockets and it takes almost zero time on client side to encrypt/decrypt 1Kb of data.
I'm curious about server load, is it too expensive to use encrypted connections for you?
For me? No, not at all but as said before, I've never heard of redirected or attacks (mitm) for miners traffic
it's no problem for me that you're using ssl for securing your miner against no fee wrappers etc but IMHO you should just say so - I believe most people won't have an issue with it Man in the middle doesn't care about encryption lol. Very easy to implement. No need to write network drivers. For the miner the mitm is the pool that can decrypt the packet and forward it to the actual pool.
SNI is helpful