1 files changed, 21 insertions, 0 deletions
diff --git a/oslo_utils/secretutils.py b/oslo_utils/secretutils.py
index ad350d2..f6a465c 100644
--- a/oslo_utils/secretutils.py
+++ b/oslo_utils/secretutils.py
@@ -18,6 +18,7 @@ Secret utilities.
 .. versionadded:: 3.5
 """
 
+import hashlib
 import hmac
 
 
@@ -44,3 +45,23 @@ try:
     constant_time_compare = hmac.compare_digest
 except AttributeError:
     constant_time_compare = _constant_time_compare
+
+try:
+    _ = hashlib.md5(usedforsecurity=False)  # nosec
+
+    def md5(string=b'', usedforsecurity=True):
+        """Return an md5 hashlib object using usedforsecurity parameter
+
+        For python distributions that support the usedforsecurity keyword
+        parameter, this passes the parameter through as expected.
+        See https://bugs.python.org/issue9216
+        """
+        return hashlib.md5(string, usedforsecurity=usedforsecurity)  # nosec
+except TypeError:
+    def md5(string=b'', usedforsecurity=True):
+        """Return an md5 hashlib object without usedforsecurity parameter
+
+        For python distributions that do not yet support this keyword
+        parameter, we drop the parameter
+        """
+        return hashlib.md5(string)  # nosec