diff --git a/AUTHORS.rst b/AUTHORS.rst
index c233bc8..08e8e92 100644
--- a/AUTHORS.rst
+++ b/AUTHORS.rst
@@ -19,3 +19,4 @@
 * Mohammed Attia <skeuomorf@gmail.com> (854A F9C5 9FF5 6E38 B17D 9587 2D70 E1ED 5290 D357)
 * Michael Hart <michael.hart1994@gmail.com>
 * Mark Adams <mark@markadams.me> (A18A 7DD3 283C CF2A B0CE FE0E C7A0 5E3F C972 098C)
+* Gregory Haynes <greg@greghaynes.net> (6FB6 44BF 9FD0 EBA2 1CE9  471F B08F 42F9 0DC6 599F)
diff --git a/src/cryptography/__about__.py b/src/cryptography/__about__.py
index f2700d5..ee16edd 100644
--- a/src/cryptography/__about__.py
+++ b/src/cryptography/__about__.py
@@ -20,4 +20,4 @@
 __email__ = "cryptography-dev@python.org"
 
 __license__ = "BSD or Apache License, Version 2.0"
-__copyright__ = "Copyright 2013-2014 {0}".format(__author__)
+__copyright__ = "Copyright 2013-2015 {0}".format(__author__)
diff --git a/src/cryptography/hazmat/primitives/interfaces.py b/src/cryptography/hazmat/primitives/interfaces/__init__.py
similarity index 86%
rename from src/cryptography/hazmat/primitives/interfaces.py
rename to src/cryptography/hazmat/primitives/interfaces/__init__.py
index 76616e1..fd1b25f 100644
--- a/src/cryptography/hazmat/primitives/interfaces.py
+++ b/src/cryptography/hazmat/primitives/interfaces/__init__.py
@@ -8,72 +8,19 @@
 
 import six
 
+from cryptography.hazmat.primitives.interfaces.ciphers import (
+    BlockCipherAlgorithm, CipherAlgorithm, Mode,
+    ModeWithAuthenticationTag, ModeWithInitializationVector, ModeWithNonce
+)
 
-@six.add_metaclass(abc.ABCMeta)
-class CipherAlgorithm(object):
-    @abc.abstractproperty
-    def name(self):
-        """
-        A string naming this mode (e.g. "AES", "Camellia").
-        """
-
-    @abc.abstractproperty
-    def key_size(self):
-        """
-        The size of the key being used as an integer in bits (e.g. 128, 256).
-        """
-
-
-@six.add_metaclass(abc.ABCMeta)
-class BlockCipherAlgorithm(object):
-    @abc.abstractproperty
-    def block_size(self):
-        """
-        The size of a block as an integer in bits (e.g. 64, 128).
-        """
-
-
-@six.add_metaclass(abc.ABCMeta)
-class Mode(object):
-    @abc.abstractproperty
-    def name(self):
-        """
-        A string naming this mode (e.g. "ECB", "CBC").
-        """
-
-    @abc.abstractmethod
-    def validate_for_algorithm(self, algorithm):
-        """
-        Checks that all the necessary invariants of this (mode, algorithm)
-        combination are met.
-        """
-
-
-@six.add_metaclass(abc.ABCMeta)
-class ModeWithInitializationVector(object):
-    @abc.abstractproperty
-    def initialization_vector(self):
-        """
-        The value of the initialization vector for this mode as bytes.
-        """
-
-
-@six.add_metaclass(abc.ABCMeta)
-class ModeWithNonce(object):
-    @abc.abstractproperty
-    def nonce(self):
-        """
-        The value of the nonce for this mode as bytes.
-        """
-
-
-@six.add_metaclass(abc.ABCMeta)
-class ModeWithAuthenticationTag(object):
-    @abc.abstractproperty
-    def tag(self):
-        """
-        The value of the tag supplied to the constructor of this mode.
-        """
+__all__ = [
+    "BlockCipherAlgorithm",
+    "CipherAlgorithm",
+    "Mode",
+    "ModeWithAuthenticationTag",
+    "ModeWithInitializationVector",
+    "ModeWithNonce"
+]
 
 
 @six.add_metaclass(abc.ABCMeta)
diff --git a/src/cryptography/hazmat/primitives/interfaces/ciphers.py b/src/cryptography/hazmat/primitives/interfaces/ciphers.py
new file mode 100644
index 0000000..075a9c2
--- /dev/null
+++ b/src/cryptography/hazmat/primitives/interfaces/ciphers.py
@@ -0,0 +1,76 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import absolute_import, division, print_function
+
+import abc
+
+import six
+
+
+@six.add_metaclass(abc.ABCMeta)
+class CipherAlgorithm(object):
+    @abc.abstractproperty
+    def name(self):
+        """
+        A string naming this mode (e.g. "AES", "Camellia").
+        """
+
+    @abc.abstractproperty
+    def key_size(self):
+        """
+        The size of the key being used as an integer in bits (e.g. 128, 256).
+        """
+
+
+@six.add_metaclass(abc.ABCMeta)
+class BlockCipherAlgorithm(object):
+    @abc.abstractproperty
+    def block_size(self):
+        """
+        The size of a block as an integer in bits (e.g. 64, 128).
+        """
+
+
+@six.add_metaclass(abc.ABCMeta)
+class Mode(object):
+    @abc.abstractproperty
+    def name(self):
+        """
+        A string naming this mode (e.g. "ECB", "CBC").
+        """
+
+    @abc.abstractmethod
+    def validate_for_algorithm(self, algorithm):
+        """
+        Checks that all the necessary invariants of this (mode, algorithm)
+        combination are met.
+        """
+
+
+@six.add_metaclass(abc.ABCMeta)
+class ModeWithInitializationVector(object):
+    @abc.abstractproperty
+    def initialization_vector(self):
+        """
+        The value of the initialization vector for this mode as bytes.
+        """
+
+
+@six.add_metaclass(abc.ABCMeta)
+class ModeWithNonce(object):
+    @abc.abstractproperty
+    def nonce(self):
+        """
+        The value of the nonce for this mode as bytes.
+        """
+
+
+@six.add_metaclass(abc.ABCMeta)
+class ModeWithAuthenticationTag(object):
+    @abc.abstractproperty
+    def tag(self):
+        """
+        The value of the tag supplied to the constructor of this mode.
+        """
diff --git a/vectors/cryptography_vectors/__about__.py b/vectors/cryptography_vectors/__about__.py
index aa6fce0..f17d7b8 100644
--- a/vectors/cryptography_vectors/__about__.py
+++ b/vectors/cryptography_vectors/__about__.py
@@ -20,4 +20,4 @@
 __email__ = "cryptography-dev@python.org"
 
 __license__ = "BSD or Apache License, Version 2.0"
-__copyright__ = "Copyright 2013-2014 %s" % __author__
+__copyright__ = "Copyright 2013-2015 %s" % __author__