-- |
-- Module      : Crypto.Hash.Keccak
-- License     : BSD-style
-- Maintainer  : Vincent Hanquez <vincent@snarc.org>
-- Stability   : experimental
-- Portability : unknown
--
-- Module containing the binding functions to work with the
-- Keccak cryptographic hash.
--
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
module Crypto.Hash.Keccak
    (  Keccak_224 (..), Keccak_256 (..), Keccak_384 (..), Keccak_512 (..)
    ) where

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


-- | Keccak (224 bits) cryptographic hash algorithm
data Keccak_224 = Keccak_224
    deriving (Int -> Keccak_224 -> ShowS
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instance HashAlgorithm Keccak_224 where
    type HashBlockSize           Keccak_224 = 144
    type HashDigestSize          Keccak_224 = 28
    type HashInternalContextSize Keccak_224 = 352
    hashBlockSize :: Keccak_224 -> Int
hashBlockSize  Keccak_224
_          = Int
144
    hashDigestSize :: Keccak_224 -> Int
hashDigestSize Keccak_224
_          = Int
28
    hashInternalContextSize :: Keccak_224 -> Int
hashInternalContextSize Keccak_224
_ = Int
352
    hashInternalInit :: Ptr (Context Keccak_224) -> IO ()
hashInternalInit Ptr (Context Keccak_224)
p        = Ptr (Context Keccak_224) -> Word32 -> IO ()
forall a. Ptr (Context a) -> Word32 -> IO ()
c_keccak_init Ptr (Context Keccak_224)
p Word32
224
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hashInternalUpdate        = Ptr (Context Keccak_224) -> Ptr Word8 -> Word32 -> IO ()
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c_keccak_update
    hashInternalFinalize :: Ptr (Context Keccak_224) -> Ptr (Digest Keccak_224) -> IO ()
hashInternalFinalize Ptr (Context Keccak_224)
p    = Ptr (Context Keccak_224)
-> Word32 -> Ptr (Digest Keccak_224) -> IO ()
forall a. Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
c_keccak_finalize Ptr (Context Keccak_224)
p Word32
224

-- | Keccak (256 bits) cryptographic hash algorithm
data Keccak_256 = Keccak_256
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instance HashAlgorithm Keccak_256 where
    type HashBlockSize           Keccak_256 = 136
    type HashDigestSize          Keccak_256 = 32
    type HashInternalContextSize Keccak_256 = 344
    hashBlockSize :: Keccak_256 -> Int
hashBlockSize  Keccak_256
_          = Int
136
    hashDigestSize :: Keccak_256 -> Int
hashDigestSize Keccak_256
_          = Int
32
    hashInternalContextSize :: Keccak_256 -> Int
hashInternalContextSize Keccak_256
_ = Int
344
    hashInternalInit :: Ptr (Context Keccak_256) -> IO ()
hashInternalInit Ptr (Context Keccak_256)
p        = Ptr (Context Keccak_256) -> Word32 -> IO ()
forall a. Ptr (Context a) -> Word32 -> IO ()
c_keccak_init Ptr (Context Keccak_256)
p Word32
256
    hashInternalUpdate :: Ptr (Context Keccak_256) -> Ptr Word8 -> Word32 -> IO ()
hashInternalUpdate        = Ptr (Context Keccak_256) -> Ptr Word8 -> Word32 -> IO ()
forall a. Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
c_keccak_update
    hashInternalFinalize :: Ptr (Context Keccak_256) -> Ptr (Digest Keccak_256) -> IO ()
hashInternalFinalize Ptr (Context Keccak_256)
p    = Ptr (Context Keccak_256)
-> Word32 -> Ptr (Digest Keccak_256) -> IO ()
forall a. Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
c_keccak_finalize Ptr (Context Keccak_256)
p Word32
256

-- | Keccak (384 bits) cryptographic hash algorithm
data Keccak_384 = Keccak_384
    deriving (Int -> Keccak_384 -> ShowS
[Keccak_384] -> ShowS
Keccak_384 -> String
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toConstr :: Keccak_384 -> Constr
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dataTypeOf :: Keccak_384 -> DataType
$cdataCast1 :: forall (t :: * -> *) (c :: * -> *).
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$cgmapT :: (forall b. Data b => b -> b) -> Keccak_384 -> Keccak_384
gmapT :: (forall b. Data b => b -> b) -> Keccak_384 -> Keccak_384
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$cgmapQ :: forall u. (forall d. Data d => d -> u) -> Keccak_384 -> [u]
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$cgmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> Keccak_384 -> u
gmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> Keccak_384 -> u
$cgmapM :: forall (m :: * -> *).
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(forall d. Data d => d -> m d) -> Keccak_384 -> m Keccak_384
gmapM :: forall (m :: * -> *).
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(forall d. Data d => d -> m d) -> Keccak_384 -> m Keccak_384
$cgmapMp :: forall (m :: * -> *).
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gmapMo :: forall (m :: * -> *).
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Data)

instance HashAlgorithm Keccak_384 where
    type HashBlockSize           Keccak_384 = 104
    type HashDigestSize          Keccak_384 = 48
    type HashInternalContextSize Keccak_384 = 312
    hashBlockSize :: Keccak_384 -> Int
hashBlockSize  Keccak_384
_          = Int
104
    hashDigestSize :: Keccak_384 -> Int
hashDigestSize Keccak_384
_          = Int
48
    hashInternalContextSize :: Keccak_384 -> Int
hashInternalContextSize Keccak_384
_ = Int
312
    hashInternalInit :: Ptr (Context Keccak_384) -> IO ()
hashInternalInit Ptr (Context Keccak_384)
p        = Ptr (Context Keccak_384) -> Word32 -> IO ()
forall a. Ptr (Context a) -> Word32 -> IO ()
c_keccak_init Ptr (Context Keccak_384)
p Word32
384
    hashInternalUpdate :: Ptr (Context Keccak_384) -> Ptr Word8 -> Word32 -> IO ()
hashInternalUpdate        = Ptr (Context Keccak_384) -> Ptr Word8 -> Word32 -> IO ()
forall a. Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
c_keccak_update
    hashInternalFinalize :: Ptr (Context Keccak_384) -> Ptr (Digest Keccak_384) -> IO ()
hashInternalFinalize Ptr (Context Keccak_384)
p    = Ptr (Context Keccak_384)
-> Word32 -> Ptr (Digest Keccak_384) -> IO ()
forall a. Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
c_keccak_finalize Ptr (Context Keccak_384)
p Word32
384

-- | Keccak (512 bits) cryptographic hash algorithm
data Keccak_512 = Keccak_512
    deriving (Int -> Keccak_512 -> ShowS
[Keccak_512] -> ShowS
Keccak_512 -> String
(Int -> Keccak_512 -> ShowS)
-> (Keccak_512 -> String)
-> ([Keccak_512] -> ShowS)
-> Show Keccak_512
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showsPrec :: Int -> Keccak_512 -> ShowS
$cshow :: Keccak_512 -> String
show :: Keccak_512 -> String
$cshowList :: [Keccak_512] -> ShowS
showList :: [Keccak_512] -> ShowS
Show,Typeable Keccak_512
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-> Data Keccak_512
Keccak_512 -> Constr
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(forall d. Data d => d -> m d) -> Keccak_512 -> m Keccak_512
gmapM :: forall (m :: * -> *).
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(forall d. Data d => d -> m d) -> Keccak_512 -> m Keccak_512
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(forall d. Data d => d -> m d) -> Keccak_512 -> m Keccak_512
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(forall d. Data d => d -> m d) -> Keccak_512 -> m Keccak_512
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(forall d. Data d => d -> m d) -> Keccak_512 -> m Keccak_512
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(forall d. Data d => d -> m d) -> Keccak_512 -> m Keccak_512
Data)

instance HashAlgorithm Keccak_512 where
    type HashBlockSize           Keccak_512 = 72
    type HashDigestSize          Keccak_512 = 64
    type HashInternalContextSize Keccak_512 = 280
    hashBlockSize :: Keccak_512 -> Int
hashBlockSize  Keccak_512
_          = Int
72
    hashDigestSize :: Keccak_512 -> Int
hashDigestSize Keccak_512
_          = Int
64
    hashInternalContextSize :: Keccak_512 -> Int
hashInternalContextSize Keccak_512
_ = Int
280
    hashInternalInit :: Ptr (Context Keccak_512) -> IO ()
hashInternalInit Ptr (Context Keccak_512)
p        = Ptr (Context Keccak_512) -> Word32 -> IO ()
forall a. Ptr (Context a) -> Word32 -> IO ()
c_keccak_init Ptr (Context Keccak_512)
p Word32
512
    hashInternalUpdate :: Ptr (Context Keccak_512) -> Ptr Word8 -> Word32 -> IO ()
hashInternalUpdate        = Ptr (Context Keccak_512) -> Ptr Word8 -> Word32 -> IO ()
forall a. Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
c_keccak_update
    hashInternalFinalize :: Ptr (Context Keccak_512) -> Ptr (Digest Keccak_512) -> IO ()
hashInternalFinalize Ptr (Context Keccak_512)
p    = Ptr (Context Keccak_512)
-> Word32 -> Ptr (Digest Keccak_512) -> IO ()
forall a. Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
c_keccak_finalize Ptr (Context Keccak_512)
p Word32
512


foreign import ccall unsafe "cryptonite_keccak_init"
    c_keccak_init :: Ptr (Context a) -> Word32 -> IO ()

foreign import ccall "cryptonite_keccak_update"
    c_keccak_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()

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