add new DSABackend interface methods for loading numbers
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index 9e476f7..5cbd47d 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -470,6 +470,40 @@
: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