1 files changed, 38 insertions, 1 deletions
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index a18a3d57..5cbd47d1 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -255,10 +255,13 @@ A specific ``backend`` may provide one or more of these interfaces.
 
     .. method:: mgf1_hash_supported(algorithm)
 
+        ..deprecated:: 0.5
+
         Check if the specified ``algorithm`` is supported for use with
         :class:`~cryptography.hazmat.primitives.asymmetric.padding.MGF1`
         inside :class:`~cryptography.hazmat.primitives.asymmetric.padding.PSS`
-        padding.
+        padding. This method is deprecated in favor of
+        ``rsa_padding_supported``.
 
         :param algorithm: An instance of a
             :class:`~cryptography.hazmat.primitives.interfaces.HashAlgorithm`
@@ -467,6 +470,40 @@ A specific ``backend`` may provide one or more of these interfaces.
         :returns: ``True`` if the given values of ``p``, ``q``, and ``g`` are
             supported by this backend, otherwise ``False``.
 
+    .. method:: load_dsa_parameter_numbers(numbers):
+
+        :param numbers: An instance of
+            :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAParameterNumbers`.
+
+        :returns: A provider of
+            :class:`~cryptography.hazmat.primitives.interfaces.DSAParameters`.
+
+        :raises cryptography.exceptions.UnsupportedAlgorithm: This raised when
+            any backend specific criteria are not met.
+
+    .. method:: load_dsa_private_numbers(numbers):
+
+        :param numbers: An instance of
+            :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateNumbers`.
+
+        :returns: A provider of
+            :class:`~cryptography.hazmat.primitives.interfaces.DSAPrivateKey`.
+
+        :raises cryptography.exceptions.UnsupportedAlgorithm: This raised when
+            any backend specific criteria are not met.
+
+    .. method:: load_dsa_public_numbers(numbers):
+
+        :param numbers: An instance of
+            :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicNumbers`.
+
+        :returns: A provider of
+            :class:`~cryptography.hazmat.primitives.interfaces.DSAPublicKey`.
+
+        :raises cryptography.exceptions.UnsupportedAlgorithm: This raised when
+            any backend specific criteria are not met.
+
+
 
 .. class:: CMACBackend