79 lines
2.7 KiB
Haskell
79 lines
2.7 KiB
Haskell
-- |
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-- Module : Crypto.Hash.Blake2s
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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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-- Blake2s cryptographic hash.
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--
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{-# LANGUAGE ForeignFunctionInterface #-}
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{-# LANGUAGE DeriveDataTypeable #-}
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE TypeFamilies #-}
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module Crypto.Hash.Blake2s
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( Blake2s_160 (..), Blake2s_224 (..), Blake2s_256 (..)
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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.Data
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import Data.Word (Word8, Word32)
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-- | Blake2s (160 bits) cryptographic hash algorithm
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data Blake2s_160 = Blake2s_160
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deriving (Show,Data)
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instance HashAlgorithm Blake2s_160 where
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type HashBlockSize Blake2s_160 = 64
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type HashDigestSize Blake2s_160 = 20
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type HashInternalContextSize Blake2s_160 = 136
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hashBlockSize _ = 64
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hashDigestSize _ = 20
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hashInternalContextSize _ = 136
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hashInternalInit p = c_blake2s_init p 160
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hashInternalUpdate = c_blake2s_update
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hashInternalFinalize p = c_blake2s_finalize p 160
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-- | Blake2s (224 bits) cryptographic hash algorithm
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data Blake2s_224 = Blake2s_224
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deriving (Show,Data)
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instance HashAlgorithm Blake2s_224 where
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type HashBlockSize Blake2s_224 = 64
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type HashDigestSize Blake2s_224 = 28
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type HashInternalContextSize Blake2s_224 = 136
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hashBlockSize _ = 64
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hashDigestSize _ = 28
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hashInternalContextSize _ = 136
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hashInternalInit p = c_blake2s_init p 224
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hashInternalUpdate = c_blake2s_update
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hashInternalFinalize p = c_blake2s_finalize p 224
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-- | Blake2s (256 bits) cryptographic hash algorithm
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data Blake2s_256 = Blake2s_256
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deriving (Show,Data)
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instance HashAlgorithm Blake2s_256 where
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type HashBlockSize Blake2s_256 = 64
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type HashDigestSize Blake2s_256 = 32
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type HashInternalContextSize Blake2s_256 = 136
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hashBlockSize _ = 64
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hashDigestSize _ = 32
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hashInternalContextSize _ = 136
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hashInternalInit p = c_blake2s_init p 256
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hashInternalUpdate = c_blake2s_update
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hashInternalFinalize p = c_blake2s_finalize p 256
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foreign import ccall unsafe "cryptonite_blake2s_init"
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c_blake2s_init :: Ptr (Context a) -> Word32 -> IO ()
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foreign import ccall "cryptonite_blake2s_update"
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c_blake2s_update :: Ptr (Context a) -> Ptr Word8 -> Word32 -> IO ()
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foreign import ccall unsafe "cryptonite_blake2s_finalize"
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c_blake2s_finalize :: Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
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