challenge changes

controller/scripts/gen_keys.sh

@@ -1,10 +1,6 @@
 #!/bin/bash
 
-TEAM_NUM=${TEAM_NUM:=10}
-
-for (( i=1; i<=TEAM_NUM; i++ )); do
-  if [[ ! -e "${HOME}/.ssh/team-${i}" ]]; then
-    ssh-keygen -q -t ed25519 -N '' -f "${HOME}/.ssh/team-${i}" -C "team${i}"
-  fi
-done
+if [[ ! -e "${HOME}/.ssh/user" ]]; then
+  ssh-keygen -q -t ed25519 -N '' -f "${HOME}/.ssh/user" -C "user"
+fi