Merge pull request #258 from alex/already-finalized

Use AlreadyFinalized for symmetric ciphers

2 files changed, 6 insertions, 1 deletions

diff --git a/docs/hazmat/primitives/cryptographic-hashes.rst b/docs/hazmat/primitives/cryptographic-hashes.rst
index 525fd889..52e87702 100644
--- a/docs/hazmat/primitives/cryptographic-hashes.rst
+++ b/docs/hazmat/primitives/cryptographic-hashes.rst
@@ -53,7 +53,7 @@ Message Digests
         Finalize the current context and return the message digest as bytes.
 
         Once ``finalize`` is called this object can no longer be used and
-        :meth:`update` and :meth:`copy` will raise
+        :meth:`update`, :meth:`copy`, and :meth:`finalize` will raise
         :class:`~cryptography.exceptions.AlreadyFinalized`.
 
         :return bytes: The message digest as bytes.
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index 28b143ba..4ef15459 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -79,6 +79,7 @@ an "encrypt-then-MAC" formulation as `described by Colin Percival`_.
 
         :param bytes data: The data you wish to pass into the context.
         :return bytes: Returns the data that was encrypted or decrypted.
+        :raises cryptography.exceptions.AlreadyFinalized: See :meth:`finalize`
 
         When the ``Cipher`` was constructed in a mode that turns it into a
         stream cipher (e.g.
@@ -90,6 +91,10 @@ an "encrypt-then-MAC" formulation as `described by Colin Percival`_.
 
         :return bytes: Returns the remainder of the data.
 
+        Once ``finalize`` is called this object can no longer be used and
+        :meth:`update` and :meth:`finalize` will raise
+        :class:`~cryptography.exceptions.AlreadyFinalized`.
+
 Algorithms
 ~~~~~~~~~~