func initSecurity(private_key_path string, server_key_path string, sock *zmq.Socket) {
zmq.AuthStart()
private_key, public_key, err := keyloader.InitKeys(private_key_path)
condlog.Fatal(err, fmt.Sprintf("Unable to read key pair for private key '%v'", private_key_path))
zmq.AuthCurveAdd("scrabble", public_key)
err = keyloader.CheckPermissions(server_key_path)
condlog.Fatal(err, "Untrustworthy key file")
server_key_buf, err := ioutil.ReadFile(server_key_path)
condlog.Fatal(err, fmt.Sprintf("Unable to load public server key '%v'", server_key_path))
server_key := string(server_key_buf)
sock.ClientAuthCurve(server_key, public_key, private_key)
}