558c21491e
The SHA-3 winning algorithm's name is Keccak (pronounced "catch-ack"), not Kekkak. - <http://keccak.noekeon.org/> - <http://www.nist.gov/itl/csd/sha-100212.cfm> - <https://en.wikipedia.org/wiki/SHA-3>
78 lines
2.4 KiB
Haskell
78 lines
2.4 KiB
Haskell
-- |
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-- Module : Crypto.Hash.Keccak
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-- License : BSD-style
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-- Maintainer : Vincent Hanquez <vincent@snarc.org>
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-- Stability : experimental
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-- Portability : unknown
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--
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-- module containing the binding functions to work with the
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-- Keccak cryptographic hash.
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--
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{-# LANGUAGE ForeignFunctionInterface #-}
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module Crypto.Hash.Keccak
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( Keccak_224 (..), Keccak_256 (..), Keccak_384 (..), Keccak_512 (..)
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) where
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import Crypto.Hash.Types
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import Foreign.Ptr (Ptr)
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import Data.Word (Word8, Word32)
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-- | Keccak (224 bits) cryptographic hash algorithm
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data Keccak_224 = Keccak_224
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deriving (Show)
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instance HashAlgorithm Keccak_224 where
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hashBlockSize _ = 144
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hashDigestSize _ = 28
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hashInternalContextSize _ = 360
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hashInternalInit p = c_keccak_init p 224
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hashInternalUpdate = c_keccak_update
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hashInternalFinalize = c_keccak_finalize
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-- | Keccak (256 bits) cryptographic hash algorithm
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data Keccak_256 = Keccak_256
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deriving (Show)
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instance HashAlgorithm Keccak_256 where
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hashBlockSize _ = 136
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hashDigestSize _ = 32
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hashInternalContextSize _ = 360
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hashInternalInit p = c_keccak_init p 256
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hashInternalUpdate = c_keccak_update
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hashInternalFinalize = c_keccak_finalize
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-- | Keccak (384 bits) cryptographic hash algorithm
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data Keccak_384 = Keccak_384
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deriving (Show)
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instance HashAlgorithm Keccak_384 where
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hashBlockSize _ = 104
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hashDigestSize _ = 48
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hashInternalContextSize _ = 360
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hashInternalInit p = c_keccak_init p 384
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hashInternalUpdate = c_keccak_update
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hashInternalFinalize = c_keccak_finalize
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-- | Keccak (512 bits) cryptographic hash algorithm
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data Keccak_512 = Keccak_512
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deriving (Show)
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instance HashAlgorithm Keccak_512 where
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hashBlockSize _ = 72
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hashDigestSize _ = 64
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hashInternalContextSize _ = 360
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hashInternalInit p = c_keccak_init p 512
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hashInternalUpdate = c_keccak_update
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hashInternalFinalize = c_keccak_finalize
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foreign import ccall unsafe "cryptonite_keccak_init"
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c_keccak_init :: Ptr (Context a) -> Word32 -> IO ()
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foreign import ccall "cryptonite_keccak_update"
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c_keccak_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
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foreign import ccall unsafe "cryptonite_keccak_finalize"
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c_keccak_finalize :: Ptr (Context a) -> Ptr (Digest a) -> IO ()
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