rename PKCS1->PKCS1v15 & UnsupportedAsymmetricPadding->UnsupportedPadding
diff --git a/docs/exceptions.rst b/docs/exceptions.rst
index 38bd0e4..0982426 100644
--- a/docs/exceptions.rst
+++ b/docs/exceptions.rst
@@ -44,7 +44,6 @@
     computed token does not match the expected token.
 
 
-.. class:: UnsupportedAsymmetricPadding
+.. class:: UnsupportedPadding
 
-    This is raised when the chosen asymmetric padding is not supported by the
-    backend.
+    This is raised when the chosen padding is not supported by the backend.