-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | crypto tokens
--   
--   Encrypted tokens/tickets to keep state in the client side.
@package crypto-token
@version 0.0.2


-- | Encrypted tokens/tickets to keep state in the client side. For
--   security reasons, <a>Storable</a> data types MUST be fixed-size when
--   stored (i.e. serialized into the memory).
module Crypto.Token

-- | Configuration for token manager.
data Config
Config :: Int -> Int -> Config

-- | The interval to generate a new secret and remove the oldest one in
--   minutes.
[interval] :: Config -> Int

-- | Maximum size of secret entries. Minimum is 256 and maximum is 32767.
[maxEntries] :: Config -> Int

-- | Default configuration to update secrets in 30 minutes and keep them
--   for 10 days.
defaultConfig :: Config

-- | The abstract data type for token manager.
data TokenManager

-- | Spawning a token manager.
spawnTokenManager :: Config -> IO TokenManager

-- | Killing a token manager.
killTokenManager :: TokenManager -> IO ()

-- | Encrypting a target value to get a token.
encryptToken :: (Storable a, ByteArray ba) => TokenManager -> a -> IO ba

-- | Decrypting a token to get a target value.
decryptToken :: (Storable a, ByteArray ba) => TokenManager -> ba -> IO (Maybe a)
instance Foreign.Storable.Storable Crypto.Token.Header