diff --git a/functions b/functions
index 1f0f68e..1f2ce34 100644
--- a/functions
+++ b/functions
@@ -6,5 +6,9 @@ get_stack () {
 	fi
 }
 
+# Generar una llave privada ECDSA si no existe
+generate_private_key () {
+  test -f "$private_key" && return 1
 
-
+  ssh-keygen -t ecdsa -f "$private_key" -N "" -m PEM
+}