diff --git a/Web/ClientSession.hs b/Web/ClientSession.hs
--- a/Web/ClientSession.hs
+++ b/Web/ClientSession.hs
@@ -1,7 +1,7 @@
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 {-# LANGUAGE TypeSynonymInstances #-}
 ---------------------------------------------------------
--- |
+--
 -- Module        : Web.ClientSession
 -- Copyright     : Michael Snoyman
 -- License       : BSD3
@@ -16,12 +16,16 @@
 module Web.ClientSession
     ( -- * Automatic key generation
       getKey
+    , defaultKeyFile
     , getDefaultKey
       -- * Actual encryption/decryption
     , encrypt
     , decrypt
       -- * Classes
     , IsByteString (..)
+      -- * Key types and classes.
+    , Word256
+    , AESKey
     ) where
 
 import Codec.Encryption.AES (AESKey)
@@ -49,9 +53,13 @@
     toByteString = BSU.fromString
     fromByteString = BSU.toString
 
+-- | The default key file.
+defaultKeyFile :: String
+defaultKeyFile = "client_session_key.aes"
+
 -- | Simply calls 'getKey' \"client_session_key.aes\"
 getDefaultKey :: IO Word256
-getDefaultKey = getKey "client_session_key.aes"
+getDefaultKey = getKey defaultKeyFile
 
 -- | Get a 256-bit key from the given text file.
 -- If the file does not exist, or did not contain enough bits,
diff --git a/clientsession.cabal b/clientsession.cabal
--- a/clientsession.cabal
+++ b/clientsession.cabal
@@ -1,5 +1,5 @@
 name:            clientsession
-version:         0.0.0
+version:         0.0.1
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -11,8 +11,14 @@
 stability:       stable
 cabal-version:   >= 1.2
 build-type:      Simple
+homepage:        http://github.com/snoyberg/clientsession/tree/master
 
 library
-    build-depends:   base, Crypto, dataenc, bytestring, random, utf8-string
+    build-depends:   base >=4 && <5,
+                     Crypto,
+                     dataenc,
+                     bytestring,
+                     random,
+                     utf8-string
     exposed-modules: Web.ClientSession
     ghc-options:     -Wall