-- |
-- Module      : Crypto.Hash.MD4
-- License     : BSD-style
-- Maintainer  : Vincent Hanquez <vincent@snarc.org>
-- Stability   : experimental
-- Portability : unknown
--
-- Module containing the binding functions to work with the
-- MD4 cryptographic hash.
--
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
module Crypto.Hash.MD4 ( MD4 (..) ) where

import           Crypto.Hash.Types
import           Foreign.Ptr (Ptr)
import           Data.Data
import           Data.Word (Word8, Word32)

-- | MD4 cryptographic hash algorithm
data MD4 = MD4
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instance HashAlgorithm MD4 where
    type HashBlockSize           MD4 = 64
    type HashDigestSize          MD4 = 16
    type HashInternalContextSize MD4 = 96
    hashBlockSize :: MD4 -> Int
hashBlockSize  MD4
_          = Int
64
    hashDigestSize :: MD4 -> Int
hashDigestSize MD4
_          = Int
16
    hashInternalContextSize :: MD4 -> Int
hashInternalContextSize MD4
_ = Int
96
    hashInternalInit :: Ptr (Context MD4) -> IO ()
hashInternalInit          = forall a. Ptr (Context a) -> IO ()
c_md4_init
    hashInternalUpdate :: Ptr (Context MD4) -> Ptr Word8 -> Word32 -> IO ()
hashInternalUpdate        = forall a. Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
c_md4_update
    hashInternalFinalize :: Ptr (Context MD4) -> Ptr (Digest MD4) -> IO ()
hashInternalFinalize      = forall a. Ptr (Context a) -> Ptr (Digest a) -> IO ()
c_md4_finalize

foreign import ccall unsafe "cryptonite_md4_init"
    c_md4_init :: Ptr (Context a)-> IO ()

foreign import ccall "cryptonite_md4_update"
    c_md4_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()

foreign import ccall unsafe "cryptonite_md4_finalize"
    c_md4_finalize :: Ptr (Context a) -> Ptr (Digest a) -> IO ()