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{-# LANGUAGE CPP #-}
module AES (aesTests) where
-- unfortunately due to a bug in some version of cabal
-- there's no way to have a condition cpp-options in the cabal file
-- for test suite. to run test with AESni, uncomment the following
-- #define HAVE_AESNI
import qualified Crypto.Cipher.AES.Haskell as AESHs
#ifdef HAVE_AESNI
import qualified Crypto.Cipher.AES.X86NI as AESNI
#endif
import Crypto.Classes
import qualified Crypto.Modes as CAPI
import Data.Word
import Data.List
import Data.ByteString (ByteString)
import qualified Data.ByteString as B
import Control.Monad
import Control.Applicative
import Test.Framework.Providers.QuickCheck2 (testProperty)
import Test.QuickCheck
newtype IV = IV ByteString
deriving (Show,Eq)
newtype Key128 = Key128 ByteString
deriving (Show,Eq)
newtype Message = Message ByteString
deriving (Show,Eq)
arbitraryBS sz = B.pack <$> replicateM sz (choose (0,255) :: Gen Word8)
instance Arbitrary IV where
arbitrary = IV <$> arbitraryBS 16
instance Arbitrary Key128 where
arbitrary = Key128 <$> arbitraryBS 16
instance Arbitrary Message where
arbitrary = choose (1,102) >>= \sz -> Message <$> arbitraryBS (16*sz)
ebcTests l (Key128 k, Message m) = (== 1) $ length $ nub $ map (\f -> f k m) l
cbcTests l (IV iv, Key128 k, Message m) = (== 1) $ length $ nub $ map (\f -> f k iv m) l
unright (Right r) = r
unright (Left e) = error e
aesTests =
[ testProperty "ECB Encryption Equivalent" $ ebcTests
[ (\k m -> AESHs.encrypt (unright $ AESHs.initKey128 k) m)
#ifdef HAVE_AESNI
, (\k m -> AESNI.encrypt (AESNI.initKey128 k) m)
#endif
]
, testProperty "CBC Encryption Equivalent" $ cbcTests
[ (\k iv m -> AESHs.encryptCBC (unright $ AESHs.initKey128 k) iv m)
#ifdef HAVE_AESNI
, (\k iv m -> AESNI.encryptCBC (AESNI.initKey128 k) iv m)
#endif
]
, testProperty "ECB Decryption Equivalent" $ ebcTests
[ (\k m -> AESHs.decrypt (unright $ AESHs.initKey128 k) m)
#ifdef HAVE_AESNI
, (\k m -> AESNI.decrypt (AESNI.initKey128 k) m)
#endif
]
, testProperty "CBC Decryption Equivalent" $ cbcTests
[ (\k iv m -> AESHs.decryptCBC (unright $ AESHs.initKey128 k) iv m)
#ifdef HAVE_AESNI
, (\k iv m -> AESNI.decryptCBC (AESNI.initKey128 k) iv m)
#endif
]
]
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