135 lines
4.4 KiB
Haskell
135 lines
4.4 KiB
Haskell
{- Convenience wrapper around cryptohash/cryptonite.
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-
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- SHA3 hashes are currently only enabled when using cryptonite,
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- because of https://github.com/vincenthz/hs-cryptohash/issues/36
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-}
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{-# LANGUAGE CPP #-}
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module Utility.Hash (
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sha1,
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sha2_224,
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sha2_256,
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sha2_384,
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sha2_512,
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#ifdef WITH_CRYPTONITE
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sha3_224,
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sha3_256,
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sha3_384,
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sha3_512,
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#endif
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skein256,
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skein512,
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md5,
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prop_hashes_stable,
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Mac(..),
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calcMac,
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prop_mac_stable,
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) where
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import qualified Data.ByteString.Lazy as L
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import qualified Data.Text as T
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import qualified Data.Text.Encoding as T
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import qualified Data.ByteString as S
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#ifdef WITH_CRYPTONITE
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import "cryptonite" Crypto.MAC.HMAC
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import "cryptonite" Crypto.Hash
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#else
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import "cryptohash" Crypto.Hash
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#endif
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sha1 :: L.ByteString -> Digest SHA1
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sha1 = hashlazy
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sha2_224 :: L.ByteString -> Digest SHA224
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sha2_224 = hashlazy
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sha2_256 :: L.ByteString -> Digest SHA256
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sha2_256 = hashlazy
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sha2_384 :: L.ByteString -> Digest SHA384
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sha2_384 = hashlazy
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sha2_512 :: L.ByteString -> Digest SHA512
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sha2_512 = hashlazy
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#ifdef WITH_CRYPTONITE
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sha3_224 :: L.ByteString -> Digest SHA3_224
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sha3_224 = hashlazy
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sha3_256 :: L.ByteString -> Digest SHA3_256
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sha3_256 = hashlazy
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sha3_384 :: L.ByteString -> Digest SHA3_384
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sha3_384 = hashlazy
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sha3_512 :: L.ByteString -> Digest SHA3_512
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sha3_512 = hashlazy
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#endif
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skein256 :: L.ByteString -> Digest Skein256_256
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skein256 = hashlazy
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skein512 :: L.ByteString -> Digest Skein512_512
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skein512 = hashlazy
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md5 :: L.ByteString -> Digest MD5
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md5 = hashlazy
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{- Check that all the hashes continue to hash the same. -}
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prop_hashes_stable :: Bool
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prop_hashes_stable = all (\(hasher, result) -> hasher foo == result)
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[ (show . sha1, "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33")
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, (show . sha2_224, "0808f64e60d58979fcb676c96ec938270dea42445aeefcd3a4e6f8db")
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, (show . sha2_256, "2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae")
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, (show . sha2_384, "98c11ffdfdd540676b1a137cb1a22b2a70350c9a44171d6b1180c6be5cbb2ee3f79d532c8a1dd9ef2e8e08e752a3babb")
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, (show . sha2_512, "f7fbba6e0636f890e56fbbf3283e524c6fa3204ae298382d624741d0dc6638326e282c41be5e4254d8820772c5518a2c5a8c0c7f7eda19594a7eb539453e1ed7")
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, (show . skein256, "a04efd9a0aeed6ede40fe5ce0d9361ae7b7d88b524aa19917b9315f1ecf00d33")
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, (show . skein512, "fd8956898113510180aa4658e6c0ac85bd74fb47f4a4ba264a6b705d7a8e8526756e75aecda12cff4f1aca1a4c2830fbf57f458012a66b2b15a3dd7d251690a7")
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#ifdef WITH_CRYPTONITE
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, (show . sha3_224, "f4f6779e153c391bbd29c95e72b0708e39d9166c7cea51d1f10ef58a")
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, (show . sha3_256, "76d3bc41c9f588f7fcd0d5bf4718f8f84b1c41b20882703100b9eb9413807c01")
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, (show . sha3_384, "665551928d13b7d84ee02734502b018d896a0fb87eed5adb4c87ba91bbd6489410e11b0fbcc06ed7d0ebad559e5d3bb5")
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, (show . sha3_512, "4bca2b137edc580fe50a88983ef860ebaca36c857b1f492839d6d7392452a63c82cbebc68e3b70a2a1480b4bb5d437a7cba6ecf9d89f9ff3ccd14cd6146ea7e7")
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#endif
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, (show . md5, "acbd18db4cc2f85cedef654fccc4a4d8")
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]
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where
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foo = L.fromChunks [T.encodeUtf8 $ T.pack "foo"]
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{- File names are (client-side) MAC'ed on special remotes.
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- The chosen MAC algorithm needs to be same for all files stored on the
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- remote.
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-}
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data Mac = HmacSha1 | HmacSha224 | HmacSha256 | HmacSha384 | HmacSha512
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deriving (Eq)
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calcMac
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:: Mac -- ^ MAC
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-> S.ByteString -- ^ secret key
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-> S.ByteString -- ^ message
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-> String -- ^ MAC'ed message, in hexadecimal
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calcMac mac = case mac of
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HmacSha1 -> use SHA1
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HmacSha224 -> use SHA224
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HmacSha256 -> use SHA256
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HmacSha384 -> use SHA384
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HmacSha512 -> use SHA512
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where
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use alg k m = show (hmacGetDigest (hmacWitnessAlg alg k m))
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hmacWitnessAlg :: HashAlgorithm a => a -> S.ByteString -> S.ByteString -> HMAC a
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hmacWitnessAlg _ = hmac
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-- Check that all the MACs continue to produce the same.
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prop_mac_stable :: Bool
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prop_mac_stable = all (\(mac, result) -> calcMac mac key msg == result)
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[ (HmacSha1, "46b4ec586117154dacd49d664e5d63fdc88efb51")
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, (HmacSha224, "4c1f774863acb63b7f6e9daa9b5c543fa0d5eccf61e3ffc3698eacdd")
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, (HmacSha256, "f9320baf0249169e73850cd6156ded0106e2bb6ad8cab01b7bbbebe6d1065317")
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, (HmacSha384, "3d10d391bee2364df2c55cf605759373e1b5a4ca9355d8f3fe42970471eca2e422a79271a0e857a69923839015877fc6")
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, (HmacSha512, "114682914c5d017dfe59fdc804118b56a3a652a0b8870759cf9e792ed7426b08197076bf7d01640b1b0684df79e4b67e37485669e8ce98dbab60445f0db94fce")
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]
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where
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key = T.encodeUtf8 $ T.pack "foo"
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msg = T.encodeUtf8 $ T.pack "bar"
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