Refer to the `d` param of RSA as `private_exponent`.
diff --git a/docs/hazmat/primitives/interfaces.rst b/docs/hazmat/primitives/interfaces.rst
index 7fef1c1..cbca5ed 100644
--- a/docs/hazmat/primitives/interfaces.rst
+++ b/docs/hazmat/primitives/interfaces.rst
@@ -130,6 +130,12 @@
The public exponent.
+ .. attribute:: private_exponent
+
+ :type: int
+
+ The private exponent.
+
.. attribute:: key_size
:type: int
@@ -152,7 +158,7 @@
:type: int
- The private exponent.
+ The private exponent. Alias for :attr:`private_exponent`.
.. attribute:: n