40 lines
1.2 KiB
Haskell
40 lines
1.2 KiB
Haskell
-- |
|
|
-- Module : Crypto.Hash.SHA1
|
|
-- License : BSD-style
|
|
-- Maintainer : Vincent Hanquez <vincent@snarc.org>
|
|
-- Stability : experimental
|
|
-- Portability : unknown
|
|
--
|
|
-- module containing the binding functions to work with the
|
|
-- SHA1 cryptographic hash.
|
|
--
|
|
{-# LANGUAGE ForeignFunctionInterface #-}
|
|
{-# LANGUAGE DeriveDataTypeable #-}
|
|
module Crypto.Hash.SHA1 ( SHA1 (..) ) where
|
|
|
|
import Crypto.Hash.Types
|
|
import Foreign.Ptr (Ptr)
|
|
import Data.Typeable
|
|
import Data.Word (Word8, Word32)
|
|
|
|
-- | SHA1 cryptographic hash algorithm
|
|
data SHA1 = SHA1
|
|
deriving (Show,Typeable)
|
|
|
|
instance HashAlgorithm SHA1 where
|
|
hashBlockSize _ = 64
|
|
hashDigestSize _ = 20
|
|
hashInternalContextSize _ = 96
|
|
hashInternalInit = c_sha1_init
|
|
hashInternalUpdate = c_sha1_update
|
|
hashInternalFinalize = c_sha1_finalize
|
|
|
|
foreign import ccall unsafe "cryptonite_sha1_init"
|
|
c_sha1_init :: Ptr (Context a)-> IO ()
|
|
|
|
foreign import ccall "cryptonite_sha1_update"
|
|
c_sha1_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
|
|
|
|
foreign import ccall unsafe "cryptonite_sha1_finalize"
|
|
c_sha1_finalize :: Ptr (Context a) -> Ptr (Digest a) -> IO ()
|