diff --git a/Crypto/Cipher.hs b/Crypto/Cipher.hs
--- a/Crypto/Cipher.hs
+++ b/Crypto/Cipher.hs
@@ -1,12 +1,49 @@
+-- |
+-- Module      : Crypto.Cipher
+-- License     : BSD-style
+-- Maintainer  : Vincent Hanquez <vincent@snarc.org>
+-- Stability   : stable
+-- Portability : good
+--
+-- All the cipher functionalities are available through the
+-- BlockCipher and StreamCipher classes.
+--
+-- A simplified example (with simplified error handling):
+--
+-- > import Crypto.Cipher
+-- > import Data.ByteString (ByteString)
+-- > import qualified Data.ByteString as B
+-- >
+-- > initAES256 :: ByteString -> AES256
+-- > initAES256 = either (error . show) cipherInit . makeKey
+-- >
+-- > cbcEncryption :: AES256 -> ByteString -> ByteString -> ByteString
+-- > cbcEncryption ctx ivRaw plainText = cbcEncrypt ctx iv plainText
+-- >   where iv = maybe (error "invalid IV") id $ ivRaw
+--
 module Crypto.Cipher
     (
     -- * Cipher classes
       Cipher(..)
     , BlockCipher(..)
     , StreamCipher(..)
+    -- * Key
+    , Key
+    , makeKey
+    -- * Initialization Vector (IV)
+    , IV
+    , makeIV
+    , nullIV
+    , ivAdd
+    -- * Authenticated Encryption with Associated Data (AEAD)
+    , AEAD
+    , aeadAppendHeader
+    , aeadEncrypt
+    , aeadDecrypt
+    , aeadFinalize
     -- * Cipher implementations
     , AES128, AES192, AES256
-    , Blowfish
+    , Blowfish, Blowfish64, Blowfish128, Blowfish256, Blowfish448
     , DES
     , DES_EEE3, DES_EDE3, DES_EEE2, DES_EDE2
     , Camellia128
diff --git a/cryptocipher.cabal b/cryptocipher.cabal
--- a/cryptocipher.cabal
+++ b/cryptocipher.cabal
@@ -1,5 +1,5 @@
 Name:                cryptocipher
-Version:             0.6.1
+Version:             0.6.2
 Description:         Symmetrical block and stream ciphers.
 License:             BSD3
 License-file:        LICENSE
@@ -14,12 +14,12 @@
 
 Library
   Build-Depends:     base >= 4 && < 5
-                   , crypto-cipher-types
-                   , cipher-aes >= 0.2.3
-                   , cipher-rc4
-                   , cipher-des
-                   , cipher-blowfish
-                   , cipher-camellia
+                   , crypto-cipher-types >= 0.0.8 && < 0.1
+                   , cipher-aes >= 0.2.3 && < 0.3
+                   , cipher-rc4 >= 0.1.3 && < 0.2
+                   , cipher-des >= 0.0 && < 0.1
+                   , cipher-blowfish >= 0.0 && < 0.1
+                   , cipher-camellia >= 0.0 && < 0.1
   Exposed-modules:   Crypto.Cipher
   ghc-options:       -Wall