diff --git a/src/string.py b/src/string.py
new file mode 100644
index 0000000..8c73a78
--- /dev/null
+++ b/src/string.py
@@ -0,0 +1,8 @@
+#! /usr/bin/env python3
+# vim:fenc=utf-8
+from hashlib import sha256
+
+def hash_string(string: str) -> str:
+    return sha256(string.encode('utf-8'),
+                  usedforsecurity=False).hexdigest()
+