1-- |
2-- Module      : Crypto.Hash.SHA512t
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-- SHA512t cryptographic hash.
10--
11{-# LANGUAGE ForeignFunctionInterface #-}
12{-# LANGUAGE DeriveDataTypeable #-}
13{-# LANGUAGE DataKinds #-}
14{-# LANGUAGE TypeFamilies #-}
15module Crypto.Hash.SHA512t
16    (  SHA512t_224 (..), SHA512t_256 (..)
17    ) where
18
19import           Crypto.Hash.Types
20import           Foreign.Ptr (Ptr)
21import           Data.Data
22import           Data.Word (Word8, Word32)
23
24
25-- | SHA512t (224 bits) cryptographic hash algorithm
26data SHA512t_224 = SHA512t_224
27    deriving (Show,Data)
28
29instance HashAlgorithm SHA512t_224 where
30    type HashBlockSize           SHA512t_224 = 128
31    type HashDigestSize          SHA512t_224 = 28
32    type HashInternalContextSize SHA512t_224 = 256
33    hashBlockSize  _          = 128
34    hashDigestSize _          = 28
35    hashInternalContextSize _ = 256
36    hashInternalInit p        = c_sha512t_init p 224
37    hashInternalUpdate        = c_sha512t_update
38    hashInternalFinalize p    = c_sha512t_finalize p 224
39
40-- | SHA512t (256 bits) cryptographic hash algorithm
41data SHA512t_256 = SHA512t_256
42    deriving (Show,Data)
43
44instance HashAlgorithm SHA512t_256 where
45    type HashBlockSize           SHA512t_256 = 128
46    type HashDigestSize          SHA512t_256 = 32
47    type HashInternalContextSize SHA512t_256 = 256
48    hashBlockSize  _          = 128
49    hashDigestSize _          = 32
50    hashInternalContextSize _ = 256
51    hashInternalInit p        = c_sha512t_init p 256
52    hashInternalUpdate        = c_sha512t_update
53    hashInternalFinalize p    = c_sha512t_finalize p 256
54
55
56foreign import ccall unsafe "cryptonite_sha512t_init"
57    c_sha512t_init :: Ptr (Context a) -> Word32 -> IO ()
58
59foreign import ccall "cryptonite_sha512t_update"
60    c_sha512t_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
61
62foreign import ccall unsafe "cryptonite_sha512t_finalize"
63    c_sha512t_finalize :: Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
64