diff --git a/install/02-ssh.sh b/install/02-ssh.sh
index 1c9acd1..4ebb187 100644
--- a/install/02-ssh.sh
+++ b/install/02-ssh.sh
@@ -1,13 +1,22 @@
 #!/usr/bin/env bash
 #
 # After running this script:
-#   1. ssh-keygen is run # TODO
+#   1. ssh key exists
 #   2. ssh dotfiles are symlinked
 #
 
-# 1. ssh dotfiles are symlinked
-readonly ssh_source="$dotfiles_dir/ssh"
+# 1. ssh key exists
 readonly ssh_target="$HOME/.ssh"
+readonly ssh_key="$ssh_target/id_rsa"
+readonly ssh_pub="$ssh_key.pub"
+if [ ! -f "$ssh_key" ]; then
+    printf "generating ssh key...\n"
+    ssh-keygen -t rsa -b 4096 -f "$ssh_key"
+fi
+printf "ssh key exists\n"
+
+# 2. ssh dotfiles are symlinked
+readonly ssh_source="$dotfiles_dir/ssh"
 link_folder "$ssh_source" "$ssh_target"
 printf "ssh dotfiles are symlinked\n"
-cat "$ssh_target/id_rsa.pub"
+cat "$ssh_pub"