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| author |  Joey Hess <joey@kitenet.net> | 2013-10-01 21:10:56 -0400 |
|---|---|---|
| committer | Joey Hess <joey@kitenet.net> | 2013-10-01 21:11:47 -0400 |
| commit | 8aff1b11f2c6be205dccf1a30f422ee7ed5af4d2 (patch) | |
| tree | df9b94e70d081bc9866d7d8ba85093dc8556aa80 /Utility | |
| parent | 56b5aa56f0fcbf28a532317cb81601bb6c41a114 (diff) | |
ensure that hash representations don't change in future
Diffstat (limited to 'Utility')
| -rw-r--r-- | Utility/Hash.hs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Utility/Hash.hs b/Utility/Hash.hs index e90f50623..8b25998ae 100644 --- a/Utility/Hash.hs +++ b/Utility/Hash.hs @@ -6,6 +6,7 @@ module Utility.Hash where import Crypto.Hash import qualified Data.ByteString.Lazy as L +import qualified Data.ByteString.Char8 as C8 sha1 :: L.ByteString -> Digest SHA1 sha1 = hashlazy @@ -31,3 +32,17 @@ skein256 = hashlazy skein512 :: L.ByteString -> Digest Skein512_512 skein512 = hashlazy + +{- Check that all the hashes continue to hash the same. -} +prop_hashes_stable :: Bool +prop_hashes_stable = all (\(hasher, result) -> hasher foo == result) + [ (show . sha1, "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33") + , (show . sha224, "0808f64e60d58979fcb676c96ec938270dea42445aeefcd3a4e6f8db") + , (show . sha256, "2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae") + , (show . sha384, "98c11ffdfdd540676b1a137cb1a22b2a70350c9a44171d6b1180c6be5cbb2ee3f79d532c8a1dd9ef2e8e08e752a3babb") + , (show . sha512, "f7fbba6e0636f890e56fbbf3283e524c6fa3204ae298382d624741d0dc6638326e282c41be5e4254d8820772c5518a2c5a8c0c7f7eda19594a7eb539453e1ed7") + , (show . skein256, "a04efd9a0aeed6ede40fe5ce0d9361ae7b7d88b524aa19917b9315f1ecf00d33") + , (show . skein512, "fd8956898113510180aa4658e6c0ac85bd74fb47f4a4ba264a6b705d7a8e8526756e75aecda12cff4f1aca1a4c2830fbf57f458012a66b2b15a3dd7d251690a7") + ] + where + foo = L.fromChunks [C8.pack "foo"] |