diff --git a/.gitignore b/.gitignore
index 6c083ca994a3625973b425e35507527c6bed97b6..35baef2b4c87969bc5c1cd847507a62840024b72 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,6 +29,11 @@ fda-ui/
 # demo
 .demo
 
+# crt
+*.crt
+*.key
+*.p12
+
 # Environment
 .env