From 480ff26a34f8c08f4ed29ae9b414f5a7a258a48b Mon Sep 17 00:00:00 2001
From: Vincent Hanquez <vincent@snarc.org>
Date: Wed, 23 Jul 2014 05:58:22 -0700
Subject: [PATCH] cleanup in PBKDF2

---
 Crypto/KDF/PBKDF2.hs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Crypto/KDF/PBKDF2.hs b/Crypto/KDF/PBKDF2.hs
index 4d76883..d643e99 100644
--- a/Crypto/KDF/PBKDF2.hs
+++ b/Crypto/KDF/PBKDF2.hs
@@ -1,4 +1,3 @@
-{-# LANGUAGE BangPatterns       #-}
 -- |
 -- Module      : Crypto.KDF.PBKDF2
 -- License     : BSD-style
@@ -8,6 +7,7 @@
 --
 -- Password Based Key Derivation Function 2
 --
+{-# LANGUAGE BangPatterns #-}
 module Crypto.KDF.PBKDF2
     ( PRF
     , prfHMAC
@@ -44,10 +44,10 @@ prfHMAC alg k = hmacIncr alg (HMAC.initialize k)
 
 -- | Parameters for PBKDF2
 data Parameters = Parameters
-    { password     :: ByteString
-    , salt         :: ByteString
-    , iterCounts   :: Int
-    , outputLength :: Int
+    { password     :: ByteString -- ^ Password (bytes encoded)
+    , salt         :: ByteString -- ^ Salut (bytes encoded)
+    , iterCounts   :: Int        -- ^ the number of user-defined iterations for the algorithms. e.g. WPA2 uses 4000.
+    , outputLength :: Int        -- ^ the number of bytes to generate out of PBKDF2
     }
 
 -- | generate the pbkdf2 key derivation function from the output