diff --git a/.gitignore b/.gitignore
index 68bc17f9ff2104a9d7b6777058bb4c343ca72609..d3aa79c1d0241e5bce5b38d73068ee658e501db0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -158,3 +158,7 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+*.key
+*.csr
+*.pem