1-- |
2-- Module      : Crypto.Hash.MD5
3-- License     : BSD-style
4-- Maintainer  : Vincent Hanquez <vincent@snarc.org>
5-- Stability   : experimental
6-- Portability : unknown
7--
8-- Module containing the binding functions to work with the
9-- MD5 cryptographic hash.
10--
11{-# LANGUAGE ForeignFunctionInterface #-}
12{-# LANGUAGE DeriveDataTypeable #-}
13{-# LANGUAGE DataKinds #-}
14{-# LANGUAGE TypeFamilies #-}
15module Crypto.Hash.MD5 ( MD5 (..) ) where
16
17import           Crypto.Hash.Types
18import           Foreign.Ptr (Ptr)
19import           Data.Data
20import           Data.Word (Word8, Word32)
21
22-- | MD5 cryptographic hash algorithm
23data MD5 = MD5
24    deriving (Show,Data)
25
26instance HashAlgorithm MD5 where
27    type HashBlockSize           MD5 = 64
28    type HashDigestSize          MD5 = 16
29    type HashInternalContextSize MD5 = 96
30    hashBlockSize  _          = 64
31    hashDigestSize _          = 16
32    hashInternalContextSize _ = 96
33    hashInternalInit          = c_md5_init
34    hashInternalUpdate        = c_md5_update
35    hashInternalFinalize      = c_md5_finalize
36
37instance HashAlgorithmPrefix MD5 where
38    hashInternalFinalizePrefix = c_md5_finalize_prefix
39
40foreign import ccall unsafe "cryptonite_md5_init"
41    c_md5_init :: Ptr (Context a)-> IO ()
42
43foreign import ccall "cryptonite_md5_update"
44    c_md5_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
45
46foreign import ccall unsafe "cryptonite_md5_finalize"
47    c_md5_finalize :: Ptr (Context a) -> Ptr (Digest a) -> IO ()
48
49foreign import ccall "cryptonite_md5_finalize_prefix"
50    c_md5_finalize_prefix :: Ptr (Context a) -> Ptr Word8 -> Word32 -> Word32 -> Ptr (Digest a) -> IO ()
51