add EC WithNumbers interfaces and docs
diff --git a/docs/hazmat/primitives/interfaces.rst b/docs/hazmat/primitives/interfaces.rst
index ac47c1e..14be698 100644
--- a/docs/hazmat/primitives/interfaces.rst
+++ b/docs/hazmat/primitives/interfaces.rst
@@ -492,6 +492,23 @@
The EllipticCurvePublicKey object for this private key.
+.. class:: EllipticCurvePrivateKeyWithNumbers
+
+ .. versionadded:: 0.6
+
+ Extends :class:`EllipticCurvePrivateKey`.
+
+ .. method:: private_numbers()
+
+ Create a
+ :class:`~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateNumbers`
+ object.
+
+ :returns: An
+ :class:`~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateNumbers`
+ instance.
+
+
.. class:: EllipticCurvePublicKey
.. versionadded:: 0.5
@@ -518,6 +535,23 @@
The elliptic curve for this key.
+.. class:: EllipticCurvePublicKeyWithNumbers
+
+ .. versionadded:: 0.6
+
+ Extends :class:`EllipticCurvePublicKey`.
+
+ .. method:: private_numbers()
+
+ Create a
+ :class:`~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers`
+ object.
+
+ :returns: An
+ :class:`~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers`
+ instance.
+
+
Hash algorithms
---------------