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Merge cshakeInit with first cshakeUpdate

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This commit is contained in:
Olivier Chéron 2019-04-07 11:38:16 +02:00
parent 14093ac298
commit 8b235612be
1 changed files with 5 additions and 4 deletions
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9
Crypto/MAC/KMAC.hs
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@ -38,11 +38,12 @@ import Data.Memory.PtrMethods (memSet)
-- cSHAKE
cshakeInit :: forall a name string . (HashSHAKE a, ByteArrayAccess name, ByteArrayAccess string)
=> name -> string -> H.Context a
cshakeInit n s = H.Context $ B.allocAndFreeze c $ \(ptr :: Ptr (H.Context a)) -> do
cshakeInit :: forall a name string prefix . (HashSHAKE a, ByteArrayAccess name, ByteArrayAccess string, ByteArrayAccess prefix)
=> name -> string -> prefix -> H.Context a
cshakeInit n s p = H.Context $ B.allocAndFreeze c $ \(ptr :: Ptr (H.Context a)) -> do
hashInternalInit ptr
B.withByteArray b $ \d -> hashInternalUpdate ptr d (fromIntegral $ B.length b)
B.withByteArray p $ \d -> hashInternalUpdate ptr d (fromIntegral $ B.length p)
where
c = hashInternalContextSize (undefined :: a)
w = hashBlockSize (undefined :: a)
@ -91,7 +92,7 @@ newtype Context a = Context (H.Context a)
-- string and key.
initialize :: forall a string key . (HashSHAKE a, ByteArrayAccess string, ByteArrayAccess key)
=> string -> key -> Context a
initialize str key = Context $ cshakeUpdate (cshakeInit n str) p
initialize str key = Context $ cshakeInit n str p
where
n = B.pack [75,77,65,67] :: B.Bytes -- "KMAC"
w = hashBlockSize (undefined :: a)