Attempt some more natural language
diff --git a/docs/exceptions.rst b/docs/exceptions.rst
index f9e29f3..1e31e31 100644
--- a/docs/exceptions.rst
+++ b/docs/exceptions.rst
@@ -10,8 +10,8 @@
.. class:: InvalidSignature
- This is raised when the verify method of a hash context does not
- compare equal.
+ This is raised when the verify method of a hash context's computed digest
+ does not match the expected digest.
.. class:: NotYetFinalized
@@ -34,5 +34,5 @@
.. class:: InvalidKey
- This is raised when the verify method of a key derivation function does not
- compare equal.
+ This is raised when the verify method of a key derivation function's
+ computed key does not match the expected key.