-- |
-- Module      : Crypto.Hash.SHA224
-- License     : BSD-style
-- Maintainer  : Vincent Hanquez <vincent@snarc.org>
-- Stability   : experimental
-- Portability : unknown
--
-- Module containing the binding functions to work with the
-- SHA224 cryptographic hash.
--
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
module Crypto.Hash.SHA224 ( SHA224 (..) ) where

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

-- | SHA224 cryptographic hash algorithm
data SHA224 = SHA224
    deriving (Int -> SHA224 -> ShowS
[SHA224] -> ShowS
SHA224 -> String
(Int -> SHA224 -> ShowS)
-> (SHA224 -> String) -> ([SHA224] -> ShowS) -> Show SHA224
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> SHA224 -> ShowS
showsPrec :: Int -> SHA224 -> ShowS
$cshow :: SHA224 -> String
show :: SHA224 -> String
$cshowList :: [SHA224] -> ShowS
showList :: [SHA224] -> ShowS
Show,Typeable SHA224
Typeable SHA224 =>
(forall (c :: * -> *).
 (forall d b. Data d => c (d -> b) -> d -> c b)
 -> (forall g. g -> c g) -> SHA224 -> c SHA224)
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-> (SHA224 -> Constr)
-> (SHA224 -> DataType)
-> (forall (t :: * -> *) (c :: * -> *).
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-> (forall (t :: * -> * -> *) (c :: * -> *).
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-> (forall (m :: * -> *).
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-> Data SHA224
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$cgunfold :: forall (c :: * -> *).
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gunfold :: forall (c :: * -> *).
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toConstr :: SHA224 -> Constr
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dataTypeOf :: SHA224 -> DataType
$cdataCast1 :: forall (t :: * -> *) (c :: * -> *).
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$cgmapT :: (forall b. Data b => b -> b) -> SHA224 -> SHA224
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$cgmapQl :: forall r r'.
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$cgmapQ :: forall u. (forall d. Data d => d -> u) -> SHA224 -> [u]
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Data)

instance HashAlgorithm SHA224 where
    type HashBlockSize           SHA224 = 64
    type HashDigestSize          SHA224 = 28
    type HashInternalContextSize SHA224 = 192
    hashBlockSize :: SHA224 -> Int
hashBlockSize  SHA224
_          = Int
64
    hashDigestSize :: SHA224 -> Int
hashDigestSize SHA224
_          = Int
28
    hashInternalContextSize :: SHA224 -> Int
hashInternalContextSize SHA224
_ = Int
192
    hashInternalInit :: Ptr (Context SHA224) -> IO ()
hashInternalInit          = Ptr (Context SHA224) -> IO ()
forall a. Ptr (Context a) -> IO ()
c_sha224_init
    hashInternalUpdate :: Ptr (Context SHA224) -> Ptr Word8 -> Word32 -> IO ()
hashInternalUpdate        = Ptr (Context SHA224) -> Ptr Word8 -> Word32 -> IO ()
forall a. Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
c_sha224_update
    hashInternalFinalize :: Ptr (Context SHA224) -> Ptr (Digest SHA224) -> IO ()
hashInternalFinalize      = Ptr (Context SHA224) -> Ptr (Digest SHA224) -> IO ()
forall a. Ptr (Context a) -> Ptr (Digest a) -> IO ()
c_sha224_finalize

instance HashAlgorithmPrefix SHA224 where
    hashInternalFinalizePrefix :: Ptr (Context SHA224)
-> Ptr Word8 -> Word32 -> Word32 -> Ptr (Digest SHA224) -> IO ()
hashInternalFinalizePrefix = Ptr (Context SHA224)
-> Ptr Word8 -> Word32 -> Word32 -> Ptr (Digest SHA224) -> IO ()
forall a.
Ptr (Context a)
-> Ptr Word8 -> Word32 -> Word32 -> Ptr (Digest a) -> IO ()
c_sha224_finalize_prefix

foreign import ccall unsafe "cryptonite_sha224_init"
    c_sha224_init :: Ptr (Context a)-> IO ()

foreign import ccall "cryptonite_sha224_update"
    c_sha224_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()

foreign import ccall unsafe "cryptonite_sha224_finalize"
    c_sha224_finalize :: Ptr (Context a) -> Ptr (Digest a) -> IO ()

foreign import ccall "cryptonite_sha224_finalize_prefix"
    c_sha224_finalize_prefix :: Ptr (Context a) -> Ptr Word8 -> Word32 -> Word32 -> Ptr (Digest a) -> IO ()