Crypto.Token

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

Configuration

data Config

Configuration for token manager.

Constructors

Config

Fields

• interval :: Int

  The interval to generate a new secret and remove the oldest one in minutes.

• maxEntries :: Int

  Maximum size of secret entries. Minimum is 256 and maximum is 32767.

defaultConfig :: Config

Default configuration to update secrets in 30 minutes and keep them for 10 days.

Token manager

data TokenManager

The abstract data type for token manager.

spawnTokenManager :: Config -> IO TokenManager

Spawning a token manager.

killTokenManager :: TokenManager -> IO ()

Killing a token manager.

Encryption and decryption

encryptToken :: (Storable a, ByteArray ba) => TokenManager -> a -> IO ba

Encrypting a target value to get a token.

decryptToken :: (Storable a, ByteArray ba) => TokenManager -> ba -> IO (Maybe a)

Decrypting a token to get a target value.