deprecate DSA backend methods
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index fea935c..8622912 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -439,6 +439,8 @@
.. method:: create_dsa_signature_ctx(private_key, algorithm)
+ .. deprecated:: 0.5
+
:param private_key: An instance of a
:class:`~cryptography.hazmat.primitives.interfaces.DSAPrivateKey`
provider.
@@ -452,6 +454,8 @@
.. method:: create_dsa_verification_ctx(public_key, signature, algorithm)
+ .. deprecated:: 0.5
+
:param public_key: An instance of a
:class:`~cryptography.hazmat.primitives.interfaces.DSAPublicKey`
provider.