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Diffstat (limited to 'server/src/Model/HashedPassword.hs')
-rw-r--r-- | server/src/Model/HashedPassword.hs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/server/src/Model/HashedPassword.hs b/server/src/Model/HashedPassword.hs new file mode 100644 index 0000000..c71e372 --- /dev/null +++ b/server/src/Model/HashedPassword.hs @@ -0,0 +1,27 @@ +module Model.HashedPassword + ( hash + , check + , HashedPassword(..) + ) where + +import qualified Crypto.BCrypt as BCrypt +import Data.Text (Text) +import qualified Data.Text.Encoding as TE + +import Common.Model.Password (Password (..)) + +newtype HashedPassword = HashedPassword Text deriving (Show) + +hash :: Password -> IO (Maybe HashedPassword) +hash (Password p) = do + hashed <- BCrypt.hashPasswordUsingPolicy BCrypt.slowerBcryptHashingPolicy (TE.encodeUtf8 p) + case hashed of + Nothing -> + return Nothing + + Just h -> + return . Just . HashedPassword . TE.decodeUtf8 $ h + +check :: Password -> HashedPassword -> Bool +check (Password p) (HashedPassword h) = + BCrypt.validatePassword (TE.encodeUtf8 h) (TE.encodeUtf8 p) |