change names of key -> numbers interfaces
diff --git a/cryptography/hazmat/primitives/interfaces.py b/cryptography/hazmat/primitives/interfaces.py
index 8e0dd87..e827271 100644
--- a/cryptography/hazmat/primitives/interfaces.py
+++ b/cryptography/hazmat/primitives/interfaces.py
@@ -458,16 +458,16 @@
 
 
 @six.add_metaclass(abc.ABCMeta)
-class RSAPrivateNumbersSerialization(object):
-    def rsa_private_numbers(self):
+class RSAPrivateNumbersAvailable(object):
+    def private_numbers(self):
         """
         Returns an RSAPrivateNumbers.
         """
 
 
 @six.add_metaclass(abc.ABCMeta)
-class RSAPublicNumbersSerialization(object):
-    def rsa_public_numbers(self):
+class RSAPublicNumbersAvailable(object):
+    def public_numbers(self):
         """
         Returns an RSAPublicNumbers
         """
diff --git a/docs/hazmat/primitives/interfaces.rst b/docs/hazmat/primitives/interfaces.rst
index c27782e..677199c 100644
--- a/docs/hazmat/primitives/interfaces.rst
+++ b/docs/hazmat/primitives/interfaces.rst
@@ -492,33 +492,33 @@
     .. attribute:: name
 
 
-Key Serialization
------------------
+Raw Numbers
+~~~~~~~~~~~
 
-.. class:: RSAPrivateNumbersSerialziation
+.. class:: RSAPrivateNumbersAvailable
 
     .. versionadded:: 0.5
 
-    .. method:: rsa_private_numbers()
+    .. method:: private_numbers()
 
-        Serialize to an
+        Create a
         :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateNumbers`
-        representation.
+        object.
 
         :returns: An
             :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateNumbers`
             instance.
 
 
-.. class:: RSAPublicNumberSerialization
+.. class:: RSAPublicNumbersAvailable
 
     .. versionadded:: 0.5
 
-    .. method:: rsa_public_numbers()
+    .. method:: public_numbers()
 
-        Serialize to an
+        Create a
         :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicNumbers`
-        representation.
+        object.
 
         :returns: An
             :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicNumbers`