-- |
-- Module      : Crypto.Hash.SHA512t
-- License     : BSD-style
-- Maintainer  : Vincent Hanquez <vincent@snarc.org>
-- Stability   : experimental
-- Portability : unknown
--
-- Module containing the binding functions to work with the
-- SHA512t cryptographic hash.
--
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
module Crypto.Hash.SHA512t
    (  SHA512t_224 (..), SHA512t_256 (..)
    ) where

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


-- | SHA512t (224 bits) cryptographic hash algorithm
data SHA512t_224 = SHA512t_224
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instance HashAlgorithm SHA512t_224 where
    type HashBlockSize           SHA512t_224 = 128
    type HashDigestSize          SHA512t_224 = 28
    type HashInternalContextSize SHA512t_224 = 256
    hashBlockSize :: SHA512t_224 -> Int
hashBlockSize  SHA512t_224
_          = Int
128
    hashDigestSize :: SHA512t_224 -> Int
hashDigestSize SHA512t_224
_          = Int
28
    hashInternalContextSize :: SHA512t_224 -> Int
hashInternalContextSize SHA512t_224
_ = Int
256
    hashInternalInit :: Ptr (Context SHA512t_224) -> IO ()
hashInternalInit Ptr (Context SHA512t_224)
p        = forall a. Ptr (Context a) -> Word32 -> IO ()
c_sha512t_init Ptr (Context SHA512t_224)
p Word32
224
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224

-- | SHA512t (256 bits) cryptographic hash algorithm
data SHA512t_256 = SHA512t_256
    deriving (Int -> SHA512t_256 -> ShowS
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instance HashAlgorithm SHA512t_256 where
    type HashBlockSize           SHA512t_256 = 128
    type HashDigestSize          SHA512t_256 = 32
    type HashInternalContextSize SHA512t_256 = 256
    hashBlockSize :: SHA512t_256 -> Int
hashBlockSize  SHA512t_256
_          = Int
128
    hashDigestSize :: SHA512t_256 -> Int
hashDigestSize SHA512t_256
_          = Int
32
    hashInternalContextSize :: SHA512t_256 -> Int
hashInternalContextSize SHA512t_256
_ = Int
256
    hashInternalInit :: Ptr (Context SHA512t_256) -> IO ()
hashInternalInit Ptr (Context SHA512t_256)
p        = forall a. Ptr (Context a) -> Word32 -> IO ()
c_sha512t_init Ptr (Context SHA512t_256)
p Word32
256
    hashInternalUpdate :: Ptr (Context SHA512t_256) -> Ptr Word8 -> Word32 -> IO ()
hashInternalUpdate        = forall a. Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
c_sha512t_update
    hashInternalFinalize :: Ptr (Context SHA512t_256) -> Ptr (Digest SHA512t_256) -> IO ()
hashInternalFinalize Ptr (Context SHA512t_256)
p    = forall a. Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
c_sha512t_finalize Ptr (Context SHA512t_256)
p Word32
256


foreign import ccall unsafe "crypton_sha512t_init"
    c_sha512t_init :: Ptr (Context a) -> Word32 -> IO ()

foreign import ccall "crypton_sha512t_update"
    c_sha512t_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()

foreign import ccall unsafe "crypton_sha512t_finalize"
    c_sha512t_finalize :: Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()