Or you could just buy HSMs that can do the number of private key operations per second that you require. I've never seen the inside of GH's network, but I woul

Or you could just buy HSMs that can do the number of private key operations per second that you require. I've never seen the inside of GH's network, but I would be surprised to discover they're not distributing the load of SSH termination across a fleet of machines. Just put a HSM on each of the machines that terminates a SSH connection.